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* [Bug c++/87736] New: New attributes to mark custom alloc/free function pair
@ 2018-10-24 16:38 bugzilla@poradnik-webmastera.com
2020-07-09 0:07 ` [Bug middle-end/87736] " msebor at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: bugzilla@poradnik-webmastera.com @ 2018-10-24 16:38 UTC (permalink / raw)
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87736
Bug ID: 87736
Summary: New attributes to mark custom alloc/free function pair
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: bugzilla@poradnik-webmastera.com
Target Milestone: ---
This is split from Bug 87731, as recommended by Jonathan Wakely:
Valgrind provides set of macros which allows it to track custom alloc/free
functions. It would be nice if you add new attributes which could be attached
to custom alloc and free functions, so gcc could check pairing for them too. I
think of something like this:
__attribute__((malloc("MyAllocType")))
void* MyAlloc(size_t);
__attribute__((free("MyAllocType")))
void MyFree(void*);
>From gcc-bugs-return-618691-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 16:39:07 2018
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From: "bugzilla@poradnik-webmastera.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87731] Detection of mismatched alloc/free pairs
Date: Wed, 24 Oct 2018 16:39:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87731
--- Comment #3 from Daniel Fruzynski <bugzilla@poradnik-webmastera.com> ---
Logged Bug 87736 for new proposed attributes.
>From gcc-bugs-return-618692-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 16:44:47 2018
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From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87731] Detection of mismatched alloc/free pairs
Date: Wed, 24 Oct 2018 16:44:00 -0000
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |msebor at gcc dot gnu.org
--- Comment #4 from Martin Sebor <msebor at gcc dot gnu.org> ---
We have been discussing this feature for some time now. Not just the
diagnostics but also the significant optimization opportunities here.
Detecting the simple cases is fairly easy but of only limited value. The more
interesting cases are harder to handle (and Clang doesn't). For example, the
bug in the common idiom below isn't diagnosed:
void f (void*);
void g (int n)
{
char a[8];
char *p;
if (n <= 8)
p = a;
else
p = new char[n];
f (p);
if (p != a)
delete p;
}
I think marking up related sets of functions (like calloc/malloc/realloc +
free) is necessary for a general solution. Otherwise it will be limited only
to the subset known/visible to the compiler: i.e., built-ins and inlined
functions. Beyond function attributes like those suggested in comment #0, it
might be helpful to also provide a similar annotation for pointer variables
(especially members) so that the compiler can make assumptions about the
allocation/deallocation functions expected to be used with them even across
calls to functions without any annotation.
>From gcc-bugs-return-618693-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 16:46:53 2018
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From: "gscfq@t-online.de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/49627] NINT(x,16) doesn't work (at all, ever, I don't think)
Date: Wed, 24 Oct 2018 16:46:00 -0000
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G. Steinmetz <gscfq@t-online.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gscfq@t-online.de
--- Comment #6 from G. Steinmetz <gscfq@t-online.de> ---
While pr65757 is solved, this still gives an ICE in my environment
in combination with a variable :
$ cat z1.f90
program test
real(16) :: x = 2466840987.123067e0_16
print *, nint(x, 16)
end
$ gfortran-9-20181021 -c z1.f90
z1.f90:3:0:
3 | print *, nint(x, 16)
|
internal compiler error: in build_round_expr, at fortran/trans-intrinsic.c:396
0x702fec build_round_expr
../../gcc/fortran/trans-intrinsic.c:396
0x702fec build_fix_expr
../../gcc/fortran/trans-intrinsic.c:420
0x7030ca gfc_conv_intrinsic_int
../../gcc/fortran/trans-intrinsic.c:550
0x711947 gfc_conv_intrinsic_function(gfc_se*, gfc_expr*)
../../gcc/fortran/trans-intrinsic.c:9202
0x6f7d04 gfc_conv_function_expr
../../gcc/fortran/trans-expr.c:6864
0x6ec45a gfc_conv_expr(gfc_se*, gfc_expr*)
../../gcc/fortran/trans-expr.c:7998
0x6f1e05 gfc_conv_expr_reference(gfc_se*, gfc_expr*, bool)
../../gcc/fortran/trans-expr.c:8143
0x7182b7 gfc_trans_transfer(gfc_code*)
../../gcc/fortran/trans-io.c:2584
0x6bdbc7 trans_code
../../gcc/fortran/trans.c:2038
0x715dae build_dt
../../gcc/fortran/trans-io.c:2026
0x6bdba7 trans_code
../../gcc/fortran/trans.c:2010
0x6e51c4 gfc_generate_function_code(gfc_namespace*)
../../gcc/fortran/trans-decl.c:6505
0x673426 translate_all_program_units
../../gcc/fortran/parse.c:6125
0x673426 gfc_parse_file()
../../gcc/fortran/parse.c:6328
0x6ba3ff gfc_be_parse_file
../../gcc/fortran/f95-lang.c:204
Works with a parameter/constant instead :
$ cat z2.f90
program test
real(16), parameter :: x = 2466840987.123067e0_16
print *, nint(x, 16)
end
$ gfortran-9-20181021 -static-libgfortran z2.f90
$ a.out
2466840987
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Subject: [Bug fortran/67760] ICE on contained subroutine in function modifying function return value
Date: Wed, 24 Oct 2018 16:49:00 -0000
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G. Steinmetz <gscfq@t-online.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gscfq@t-online.de
--- Comment #3 from G. Steinmetz <gscfq@t-online.de> ---
Update :
$ cat z1.f90
module m
implicit none
contains
function f()
integer :: f(4)
call s
contains
subroutine s
f = 42
end
end
end
program p
use m
print *, f()
end
$ gfortran-9-20181021 -c z1.f90
z1.f90:4:0:
4 | function f()
|
internal compiler error: stride.0 from s referenced in f
0xba2c19 convert_nonlocal_reference_op
../../gcc/tree-nested.c:1053
0xd59f65 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, default_hash_traits<tree_node*> >*, tree_node*
(*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*), void*,
hash_set<tree_node*, default_hash_traits<tree_node*> >*))
../../gcc/tree.c:11513
0x8f1f1d walk_gimple_op(gimple*, tree_node* (*)(tree_node**, int*, void*),
walk_stmt_info*)
../../gcc/gimple-walk.c:221
0x8f2128 walk_gimple_stmt(gimple_stmt_iterator*, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
../../gcc/gimple-walk.c:586
0x8f22d0 walk_gimple_seq_mod(gimple**, tree_node* (*)(gimple_stmt_iterator*,
bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*),
walk_stmt_info*)
../../gcc/gimple-walk.c:51
0x8f21d1 walk_gimple_stmt(gimple_stmt_iterator*, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
../../gcc/gimple-walk.c:595
0x8f22d0 walk_gimple_seq_mod(gimple**, tree_node* (*)(gimple_stmt_iterator*,
bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*),
walk_stmt_info*)
../../gcc/gimple-walk.c:51
0x8f21d1 walk_gimple_stmt(gimple_stmt_iterator*, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
../../gcc/gimple-walk.c:595
0x8f22d0 walk_gimple_seq_mod(gimple**, tree_node* (*)(gimple_stmt_iterator*,
bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*),
walk_stmt_info*)
../../gcc/gimple-walk.c:51
0xba0808 walk_body
../../gcc/tree-nested.c:703
0xba1008 walk_function
../../gcc/tree-nested.c:714
0xba1008 walk_all_functions
../../gcc/tree-nested.c:779
0xba4b60 lower_nested_functions(tree_node*)
../../gcc/tree-nested.c:3435
0x7b0383 cgraph_node::analyze()
../../gcc/cgraphunit.c:673
0x7b2e57 analyze_functions
../../gcc/cgraphunit.c:1126
0x7b3782 symbol_table::finalize_compilation_unit()
../../gcc/cgraphunit.c:2833
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From: "dougmencken at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Wed, 24 Oct 2018 16:49:00 -0000
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--- Comment #11 from Douglas Mencken <dougmencken at gmail dot com> ---
I’m bisecting yet
CC="ccache /Developer/GCC/7.3p/PowerPC/32bit/bin/gcc" \
CXX="ccache /Developer/GCC/7.3p/PowerPC/32bit/bin/g++" \
../gcc-build/configure \
--build=powerpc-unknown-darwin --host=powerpc-unknown-darwin
--target=powerpc-unknown-darwin \
--prefix=/Developer/GCC/7_to_8_bisecting/PowerPC/32bit \
--enable-languages=c,c++,objc,obj-c++ \
--enable-shared --enable-static \
--enable-checking=release \
--enable-threads=posix --with-__thread --without-system-zlib \
--disable-nls --disable-werror
make -j3 2>&1 | tee ../_7_to_8_bootstrap.log
iain.patch is needed for 7.3 before r257501 patch
https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=257501
that is git commit 566f381623050c5af7ba9d02d05a5b9b1c046158
you may get it from https://ftp.osuosl.org/pub/manulix/other/GCC/iain.patch
$ git bisect start
$ git bisect good gcc-7_3_0-release # "good" as in it reaches stage3, patched
with iain.patch if it needs to
$ git bisect bad gcc-8_1_0-release # otherwise it’s "bad"
Bisecting: a merge base must be tested
[7369309777f6d6e630fb7763bcd08a0317727e36] [ARM] Fix type for .init_array.* and
.fini_array.* sections
$ patch -p1 < ../patches/iain.patch
$ ... configure and make ...
$ cat stage_current
stage3
$ git stash
$ git bisect good # 7369309777f6d6e630fb7763bcd08a0317727e36 # r247015
Bisecting: 4002 revisions left to test after this (roughly 12 steps)
[b50e3690fbcafedefdb888c2d66725b8f405706e] Add ChangeLog entries, missing from
last commit
$ patch -p1 < ../patches/iain.patch
$ ... configure and make ...
build/gencfn-macros: DEF_INTERNAL_INT_FN (PARITY) has no associated built-in
functions
make[3]: *** [s-case-cfn-macros] Error 1
$ cat stage_current
stage2
$ git stash
$ git bisect bad # b50e3690fbcafedefdb888c2d66725b8f405706e # r253946
Bisecting: 2001 revisions left to test after this (roughly 11 steps)
[61cb18166c6a1507af78ce73a4e3c8a21b0cb8ab] * profile-count.h
(profile_probability::from_reg_br_prob_note,
profile_probability::to_reg_br_prob_note): New functions.
$ patch -p1 < ../patches/iain.patch
$ ... configure and make ...
Undefined symbols:
"make_pass_analyze_swaps(gcc::context*)", referenced from:
gcc::pass_manager::pass_manager(gcc::context*) in libbackend.a(passes.o)
gcc::pass_manager::pass_manager(gcc::context*) in libbackend.a(passes.o)
"rs6000_output_load_multiple(rtx_def**)", referenced from:
output_464(rtx_def**, rtx_insn*) in libbackend.a(insn-output.o)
output_465(rtx_def**, rtx_insn*) in libbackend.a(insn-output.o)
output_466(rtx_def**, rtx_insn*) in libbackend.a(insn-output.o)
output_467(rtx_def**, rtx_insn*) in libbackend.a(insn-output.o)
output_468(rtx_def**, rtx_insn*) in libbackend.a(insn-output.o)
output_469(rtx_def**, rtx_insn*) in libbackend.a(insn-output.o)
"expand_block_move(rtx_def**)", referenced from:
gen_movmemsi(rtx_def*, rtx_def*, rtx_def*, rtx_def*) in
libbackend.a(insn-emit.o)
"expand_block_clear(rtx_def**)", referenced from:
gen_setmemsi(rtx_def*, rtx_def*, rtx_def*, rtx_def*) in
libbackend.a(insn-emit.o)
ld: symbol(s) not found
make[3]: *** [cc1plus] Error 1
$ cat stage_current
stage1
$ git stash
$ git bisect skip # 61cb18166c6a1507af78ce73a4e3c8a21b0cb8ab # r250239
Bisecting: 2001 revisions left to test after this (roughly 11 steps)
[4f5b1ee8ccfd04b939e07bd99f4ca6f8d3f5aa83] PR go/80964 * configure.ac:
Set NATIVE if host_alias = target_alias. * configure: Rebuild.
$ patch -p1 < ../patches/iain.patch
$ ... configure and make ...
$ cat stage_current
stage3
$ git stash
$ git bisect good # 4f5b1ee8ccfd04b939e07bd99f4ca6f8d3f5aa83 # r249172
Bisecting: 1338 revisions left to test after this (roughly 10 steps)
[a5079b7fe2c7b4c862704149db5fb0948a7d02f8] Adds the powerpc equivalent
mm_malloc.h header which is needed by xmmintrin.h and cleans up some noisy
warnings from the previous MMX commit.
$ patch -p1 < ../patches/iain.patch
$ ... configure and make ...
$ cat stage_current
stage3
$ git stash
$ git bisect good # a5079b7fe2c7b4c862704149db5fb0948a7d02f8 # r251339
Bisecting: 668 revisions left to test after this (roughly 9 steps)
[237c1ea8f68a7cc3100b63ee50da05c9e0b0ea6d] rs6000: Don't touch below the stack
pointer (PR77687)
$ patch -p1 < ../patches/iain.patch
$ ... configure and make ...
build/gencfn-macros: DEF_INTERNAL_INT_FN (FFS) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_INT_FN (PARITY) has no associated built-in
functions
make[3]: *** [s-case-cfn-macros] Error 1
$ cat stage_current
stage2
$ git stash
$ git bisect bad # 237c1ea8f68a7cc3100b63ee50da05c9e0b0ea6d # r253033
Bisecting: 334 revisions left to test after this (roughly 8 steps)
[1f0c90bb95ae0d59c93a97dc12294425831c5080] 2017-09-07 Nicolas Roche
<roche@adacore.com>
$ patch -p1 < ../patches/iain.patch
$ ... configure and make ...
build/gencfn-macros: DEF_INTERNAL_INT_FN (CTZ) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_INT_FN (FFS) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_INT_FN (PARITY) has no associated built-in
functions
make[3]: *** [s-case-cfn-macros] Error 1
$ cat stage_current
stage2
$ git stash
$ git bisect bad # 1f0c90bb95ae0d59c93a97dc12294425831c5080 # r251838
Bisecting: 166 revisions left to test after this (roughly 7 steps)
[bc3e9c9df58c165b0157aabf69b222130c835a63] 2017-08-31 Richard Biener
<rguenther@suse.de>
$ patch -p1 < ../patches/iain.patch
$ ... configure and make ...
$ cat stage_current
stage3
$ git stash
$ git bisect good # bc3e9c9df58c165b0157aabf69b222130c835a63 # r251559
Bisecting: 83 revisions left to test after this (roughly 6 steps)
[1694a564a16d2403ba1d80778eaacd49b1a62b2c] [gcc]
$ patch -p1 < ../patches/iain.patch
$ ... configure and make ...
In short, briefly
git bisect start
git bisect good gcc-7_3_0-release # r257041
git bisect bad gcc-8_1_0-release # r259829
git bisect good 7369309777f6d6e630fb7763bcd08a0317727e36 # r247015 merge parent
git bisect bad b50e3690fbcafedefdb888c2d66725b8f405706e # r253946
git bisect skip 61cb18166c6a1507af78ce73a4e3c8a21b0cb8ab # r250239
git bisect good 4f5b1ee8ccfd04b939e07bd99f4ca6f8d3f5aa83 # r249172
git bisect good a5079b7fe2c7b4c862704149db5fb0948a7d02f8 # r251339
git bisect bad 237c1ea8f68a7cc3100b63ee50da05c9e0b0ea6d # r253033
git bisect bad 1f0c90bb95ae0d59c93a97dc12294425831c5080 # r251838
git bisect good bc3e9c9df58c165b0157aabf69b222130c835a63 # r251559
git bisect ????? 1694a564a16d2403ba1d80778eaacd49b1a62b2c # r251723
>From gcc-bugs-return-618696-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 16:51:05 2018
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Subject: [Bug fortran/67760] ICE on contained subroutine in function modifying function return value
Date: Wed, 24 Oct 2018 16:51:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67760
--- Comment #4 from G. Steinmetz <gscfq@t-online.de> ---
Works with an explicit result variable :
$ cat z2.f90
module m
implicit none
contains
function f() result(z)
integer :: z(4)
call s
contains
subroutine s
z = 42
end
end
end
program p
use m
print *, f()
end
$ gfortran-9-20181021 z2.f90
$ a.out
42 42 42 42
>From gcc-bugs-return-618697-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 16:52:46 2018
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Subject: [Bug fortran/79685] [6/7/8/9 Regression] ICE on valid code in gfc_match_structur_constructor
Date: Wed, 24 Oct 2018 16:52:00 -0000
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G. Steinmetz <gscfq@t-online.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gscfq@t-online.de
--- Comment #5 from G. Steinmetz <gscfq@t-online.de> ---
Update :
$ cat z1.f90
module m
type t
end type
end
module m2
use m, t2 => t
type(t2) :: x
data x /t2()/
end
$ cat z2_chk.f90
module m
type t
end type
end
module m2
use m, t2 => t
type(t) :: x
data x /t2()/
end
$ gfortran-9-20181021 -c z1.f90
f951: internal compiler error: in gfc_match_structure_constructor, at
fortran/primary.c:3066
0x67835d gfc_match_structure_constructor(gfc_symbol*, gfc_expr**)
../../gcc/fortran/primary.c:3065
0x6048ff match_data_constant
../../gcc/fortran/decl.c:427
0x6049b3 top_val_list
../../gcc/fortran/decl.c:472
0x604bcf gfc_match_data()
../../gcc/fortran/decl.c:616
0x669741 match_word
../../gcc/fortran/parse.c:65
0x66ce86 decode_statement
../../gcc/fortran/parse.c:468
0x66daaa next_free
../../gcc/fortran/parse.c:1234
0x66daaa next_statement
../../gcc/fortran/parse.c:1466
0x66f0bb parse_spec
../../gcc/fortran/parse.c:3858
0x672d1c parse_module
../../gcc/fortran/parse.c:5934
0x673067 gfc_parse_file()
../../gcc/fortran/parse.c:6247
0x6ba3ff gfc_be_parse_file
../../gcc/fortran/f95-lang.c:204
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Subject: [Bug fortran/87737] New: ICE tree check: expected ssa_name, have addr_expr in remap_gimple_op_r, at tree-inline.c:923
Date: Wed, 24 Oct 2018 16:54:00 -0000
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Bug ID: 87737
Summary: ICE tree check: expected ssa_name, have addr_expr in
remap_gimple_op_r, at tree-inline.c:923
Product: gcc
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Affects version 9 at -O[123], but not at -O[0gs].
Versions 5 to 8 are only affected at -O3 or -Ofast.
$ cat z1.f90
program p
interface
function f()
character(:), allocatable :: f
end
end interface
character(1) :: g
print *, f()
print *, g()
end
function f()
character(:), allocatable :: f
character(1) :: g
f = 'f'
return
entry g()
g = 'g'
end
$ gfortran-9-20181021 -c z1.f90 -Os
$
$ gfortran-9-20181021 -c z1.f90 -O2
during GIMPLE pass: ccp
z1.f90:1:0:
1 | program p
|
internal compiler error: Segmentation fault
0xb1c86f crash_signal
../../gcc/toplev.c:325
0x86c2d9 get_inner_reference(tree_node*, poly_int_pod<1u, long>*,
poly_int_pod<1u, long>*, tree_node**, machine_mode*, int*, int*, int*)
../../gcc/expr.c:7147
0x8a9c35 fold_comparison
../../gcc/fold-const.c:8524
0x89deb8 fold_binary_loc(unsigned int, tree_code, tree_node*, tree_node*,
tree_node*)
../../gcc/fold-const.c:10608
0xbee77c ccp_fold
../../gcc/tree-ssa-ccp.c:1246
0xbee77c evaluate_stmt
../../gcc/tree-ssa-ccp.c:1785
0xbf05de visit_cond_stmt
../../gcc/tree-ssa-ccp.c:2381
0xbf05de ccp_propagate::visit_stmt(gimple*, edge_def**, tree_node**)
../../gcc/tree-ssa-ccp.c:2439
0xc64fb3 ssa_propagation_engine::simulate_stmt(gimple*)
../../gcc/tree-ssa-propagate.c:230
0xc6522a ssa_propagation_engine::simulate_block(basic_block_def*)
../../gcc/tree-ssa-propagate.c:337
0xc66022 ssa_propagation_engine::ssa_propagate()
../../gcc/tree-ssa-propagate.c:800
0xbe8be7 do_ssa_ccp
../../gcc/tree-ssa-ccp.c:2471
0xbe8be7 execute
../../gcc/tree-ssa-ccp.c:2515
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Subject: [Bug fortran/87737] ICE tree check: expected ssa_name, have addr_expr in remap_gimple_op_r, at tree-inline.c:923
Date: Wed, 24 Oct 2018 16:54:00 -0000
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--- Comment #1 from G. Steinmetz <gscfq@t-online.de> ---
Configured with --enable-checking=yes :
$ gfortran-9-20181021-chk -c z1.f90 -O2
during IPA pass: inline
f951:
internal compiler error: tree check: expected ssa_name, have addr_expr in
remap_gimple_op_r, at tree-inline.c:923
0x5e3e24 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/tree.c:9369
0xd0409e tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/tree.h:3118
0xd0409e remap_gimple_op_r
../../gcc/tree-inline.c:923
0xf5c593 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, default_hash_traits<tree_node*> >*, tree_node*
(*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*), void*,
hash_set<tree_node*, default_hash_traits<tree_node*> >*))
../../gcc/tree.c:11513
0x9c6b6c walk_gimple_op(gimple*, tree_node* (*)(tree_node**, int*, void*),
walk_stmt_info*)
../../gcc/gimple-walk.c:268
0xcfd1b1 remap_gimple_stmt
../../gcc/tree-inline.c:1777
0xcfe4c4 copy_bb
../../gcc/tree-inline.c:1827
0xd0019c copy_cfg_body
../../gcc/tree-inline.c:2719
0xd0019c copy_body
../../gcc/tree-inline.c:2961
0xd05c82 expand_call_inline
../../gcc/tree-inline.c:4691
0xd08a64 gimple_expand_calls_inline
../../gcc/tree-inline.c:4886
0xd08a64 optimize_inline_calls(tree_node*)
../../gcc/tree-inline.c:5026
0x153c0eb inline_transform(cgraph_node*)
../../gcc/ipa-inline-transform.c:682
0xb92786 execute_one_ipa_transform_pass
../../gcc/passes.c:2170
0xb92786 execute_all_ipa_transforms()
../../gcc/passes.c:2212
0x8278af cgraph_node::expand()
../../gcc/cgraphunit.c:2187
0x828e20 expand_all_functions
../../gcc/cgraphunit.c:2332
0x828e20 symbol_table::compile()
../../gcc/cgraphunit.c:2683
0x82b9c6 symbol_table::compile()
../../gcc/cgraphunit.c:2864
0x82b9c6 symbol_table::finalize_compilation_unit()
../../gcc/cgraphunit.c:2861
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Subject: [Bug c++/87736] New attributes to mark custom alloc/free function pair
Date: Wed, 24 Oct 2018 17:01:00 -0000
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--- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
Note that you can have a custom malloc function (e.g. xmalloc) that pairs
with standard free, so it should be possible to indicate that.
>From gcc-bugs-return-618701-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 17:06:52 2018
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Subject: [Bug middle-end/87736] New attributes to mark custom alloc/free function pair
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87736
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-24
CC| |msebor at gcc dot gnu.org
Component|c++ |middle-end
Depends on| |87731
Ever confirmed|0 |1
Severity|normal |enhancement
--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
Something like this is probably necessary for a robust implementation of
pr87731. It won't do much in GCC on its own, though it could be used by third
party static analyzers (that suggests that we might want to consider adopting
one or more existing forms of annotations already recognized by such tools).
This is also a general mechanism, not one specific to C++, so changing
Component to middle-end.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87731
[Bug 87731] Detection of mismatched alloc/free pairs
>From gcc-bugs-return-618702-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 17:08:01 2018
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Subject: [Bug middle-end/87731] Detection of mismatched alloc/free pairs
Date: Wed, 24 Oct 2018 17:08:00 -0000
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|c++ |middle-end
Severity|normal |enhancement
--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
Like pr87736, this is also a general mechanism, not one specific to C++, so
changing Component to middle-end.
>From gcc-bugs-return-618703-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 17:20:09 2018
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From: "dmalcolm at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/87721] [9 Regression] ICE in linemap_position_for_line_and_column at gcc/libcpp/line-map.c:842 since r265271
Date: Wed, 24 Oct 2018 17:20:00 -0000
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David Malcolm <dmalcolm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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Assignee|unassigned at gcc dot gnu.org |dmalcolm at gcc dot gnu.org
--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Confirmed; thanks. I'm able to reproduce this and am working on reducing it.
>From gcc-bugs-return-618704-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 17:22:24 2018
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Subject: [Bug fortran/87734] ICE in is_illegal_recursion check for character len= parameter
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Jürgen Reuter <juergen.reuter at desy dot de> changed:
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----------------------------------------------------------------------------
CC| |juergen.reuter at desy dot de
--- Comment #1 from Jürgen Reuter <juergen.reuter at desy dot de> ---
Confirmed with current trunk. Could this be a duplicate of PR87644 ?
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Subject: [Bug fortran/40196] [F03] [F08] Type parameter inquiry (str%len, a%kind) and Complex parts (z%re, z%im)
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Paul Thomas <pault at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
CC| |pault at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |pault at gcc dot gnu.org
--- Comment #9 from Paul Thomas <pault at gcc dot gnu.org> ---
Created attachment 44892
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44892&action=edit
Patch for the PR
With the attached patch, the test below works fine.
The patch needs a bit more work to prevent LEN and KIND part_exprs being
assigned to, to assert the relevant standards and to prevent inquiries about
unallocated or unassociated deferred length expressions.
Paul
module m
complex, target :: z
character (:), allocatable :: str
real, pointer :: r => z%re
real, pointer :: i => z%im
type :: mytype
complex :: z = ( 10.0, 11.0 )
character(6) :: str
end type
end module
use m
type(mytype) :: der
integer :: j
z = (2.0,4.0)
str = "abcd"
if (r .ne. real (z)) stop 1
if (i .ne. imag (z)) stop 2
z%im = 4.0 * z%re
if (z%re .ne. real (z)) stop 3
if (abs (z*im - 4.0 * real (z)) .lt. 1e-6) stop 4
if (z%im%kind .ne. kind (z)) stop 5
if (str%kind .ne. kind (str)) stop 6
if (str%len .ne. len (str)) stop 6
if (der%str%len .ne. len (der%str)) stop 7
if (der%z%im .ne. imag (der%z)) stop 8
end
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Subject: [Bug fortran/40196] [F03] [F08] Type parameter inquiry (str%len, a%kind) and Complex parts (z%re, z%im)
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--- Comment #10 from Paul Thomas <pault at gcc dot gnu.org> ---
Comment on attachment 44892
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Patch for the PR
As for things to be done: I forgot the placeholder in simplify_const_ref and
the need for some modifications to simplify.c. A more elaborate testcase would
be in order as well!
Paul
>From gcc-bugs-return-618707-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 17:49:28 2018
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From: "dmalcolm at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87721] [9 Regression] ICE in linemap_position_for_line_and_column at gcc/libcpp/line-map.c:842 since r265271
Date: Wed, 24 Oct 2018 17:49:00 -0000
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--- Comment #2 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Reduced reproducer:
# define DBG_ERROR(dbg_logger, format, args...) if (1){\
char dbg_buffer[256]; \
__builtin_snprintf(dbg_buffer, sizeof(dbg_buffer)-1,\
__FILE__":%5d: " format , __LINE__ , ## args); \
};
void testPasswordStore1(int argc, char **argv) {
const char *pw1="Secret1";
char pw[256];
DBG_ERROR(0, "Bad password, expected [%s], got [%s].", pw1, pw);
}
Am working on a fix.
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Subject: [Bug fortran/87738] New: internal compiler error: in gfc_trans_use_stmts, at fortran/trans-decl.c:4920
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Bug ID: 87738
Summary: internal compiler error: in gfc_trans_use_stmts, at
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>From gcc-bugs-return-618709-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 18:06:35 2018
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Subject: [Bug testsuite/87739] New: new test case gcc.dg/tree-ssa/pr84436-5.c fails with its introduction in r265463
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Bug ID: 87739
Summary: new test case gcc.dg/tree-ssa/pr84436-5.c fails with
its introduction in r265463
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In r265463
make -k check-gcc RUNTESTFLAGS=tree-ssa.exp=gcc.dg/tree-ssa/pr84436-5.c
FAIL: gcc.dg/tree-ssa/pr84436-5.c (test for excess errors)
FAIL: gcc.dg/tree-ssa/pr84436-5.c execution test
FAIL: gcc.dg/tree-ssa/pr84436-5.c scan-tree-dump-times switchconv "40 *\\*" 1
I only saw this on powerpc64 but both LE and BE. It worked fine on x86.
Executing on host: /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -O2 -fdump-tree-switchconv -fdump-tree-optimized
-lm -o ./pr84436-5.exe (timeout = 300)
spawn -ignore SIGHUP /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -O2 -fdump-tree-switchconv -fdump-tree-optimized -lm
-o ./pr84436-5.exe
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c: In
function 'foo':
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c:10:5:
warning: case label value is less than minimum value for type
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c:11:5:
warning: case label value is less than minimum value for type
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c:12:5:
warning: case label value is less than minimum value for type
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c:13:5:
warning: case label value is less than minimum value for type
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c:10:18:
warning: statement will never be executed [-Wswitch-unreachable]
FAIL: gcc.dg/tree-ssa/pr84436-5.c (test for excess errors)
Excess errors:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c:10:5:
warning: case label value is less than minimum value for type
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c:11:5:
warning: case label value is less than minimum value for type
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c:12:5:
warning: case label value is less than minimum value for type
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c:13:5:
warning: case label value is less than minimum value for type
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c:10:18:
warning: statement will never be executed [-Wswitch-unreachable]
Setting LD_LIBRARY_PATH to
:/home/seurer/gcc/build/gcc-trunk/gcc:/home/seurer/gcc/build/gcc-trunk/powerpc64-unknown-linux-gnu/./libatomic/.libs::/home/seurer/gcc/build/gcc-trunk/gcc:/home/seurer/gcc/build/gcc-trunk/powerpc64-unknown-linux-gnu/./libatomic/.libs:/home/seurer/gcc/build/gcc-trunk/./gmp/.libs:/home/seurer/gcc/build/gcc-trunk/./prev-gmp/.libs:/home/seurer/gcc/build/gcc-trunk/./mpfr/src/.libs:/home/seurer/gcc/build/gcc-trunk/./prev-mpfr/src/.libs:/home/seurer/gcc/build/gcc-trunk/./mpc/src/.libs:/home/seurer/gcc/build/gcc-trunk/./prev-mpc/src/.libs:/home/seurer/gcc/build/gcc-trunk/./isl/.libs:/home/seurer/gcc/build/gcc-trunk/./prev-isl/.libs:/home/seurer/gcc/install/gcc-7.2.0/lib64
Execution timeout is: 300
spawn [open ...]
FAIL: gcc.dg/tree-ssa/pr84436-5.c execution test
gcc.dg/tree-ssa/pr84436-5.c: pattern found 0 times
FAIL: gcc.dg/tree-ssa/pr84436-5.c scan-tree-dump-times switchconv "40 *\\*" 1
PASS: gcc.dg/tree-ssa/pr84436-5.c scan-tree-dump-not optimized "switch"
>From gcc-bugs-return-618710-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 18:06:50 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/84851] missing -Wclass-memaccess for a memcpy in a copy ctor with a non-trivial member
Date: Wed, 24 Oct 2018 18:06:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84851
--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Wed Oct 24 18:06:14 2018
New Revision: 265467
URL: https://gcc.gnu.org/viewcvs?rev=265467&root=gcc&view=rev
Log:
PR c++/84851 - missing -Wclass-memaccess for a memcpy in a copy ctor with a
non-trivial member
gcc/cp/ChangeLog:
PR c++/84851
* call.c (maybe_warn_class_memaccess): Tighten up.
gcc/testsuite/ChangeLog:
PR c++/84851
* g++.dg/Wclass-memaccess-4.C: Remove XFAIL.
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/call.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/Wclass-memaccess-4.C
>From gcc-bugs-return-618711-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 18:07:27 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/84850] [8 Regression] -Wclass-memaccess on a memcpy in a copy assignment operator with no nontrivial bases or members
Date: Wed, 24 Oct 2018 18:07:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84850
Bug 84850 depends on bug 84851, which changed state.
Bug 84851 Summary: missing -Wclass-memaccess for a memcpy in a copy ctor with a non-trivial member
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84851
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
>From gcc-bugs-return-618712-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 18:07:27 2018
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From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/84851] missing -Wclass-memaccess for a memcpy in a copy ctor with a non-trivial member
Date: Wed, 24 Oct 2018 18:07:00 -0000
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Known to work| |9.0
Resolution|--- |FIXED
Target Milestone|--- |9.0
Known to fail| |8.2.0
--- Comment #4 from Martin Sebor <msebor at gcc dot gnu.org> ---
Done in r265467.
>From gcc-bugs-return-618713-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 18:08:16 2018
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Subject: [Bug fortran/87725] OpenMP 4.5 clause schedule(simd,monotonic:static) not understood
Date: Wed, 24 Oct 2018 18:08:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2018-10-24
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 44893
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44893&action=edit
gcc9-pr87725.patch
Well, OpenMP 4.5 Fortran support is unfinished, this is just one of the things.
Though, the reason here was just a thinko (nmodifiers == 0 test when nmodifiers
== 1 should have been used, because unlike C/C++ FEs it has been bumped already
at that point if there was any), the rest of the patch is just better
diagnostics and accepting even the bogus cases that I'll make sure to make
invalid in OpenMP 5.1.
>From gcc-bugs-return-618714-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 18:34:45 2018
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Subject: [Bug testsuite/87740] New: Error Making Test Suite
Date: Wed, 24 Oct 2018 18:34:00 -0000
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Bug ID: 87740
Summary: Error Making Test Suite
Product: gcc
Version: 5.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
Assignee: unassigned at gcc dot gnu.org
Reporter: christopher.e.ozawa at raytheon dot com
Target Milestone: ---
Attempt to build test suite using the "make" command resulted in errors.
GCC version/configuration output: COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu
5.4.0-6ubuntu1~16.04.10' --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs
--enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-5 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib
--disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre --enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64
--with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686
--with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib
--with-tune=generic --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.10)
Command: make
Error Message: ../.././isl/isl_tab_pip.c: In function
‘isl_tab_basic_set_non_trivial_lexmin’:
../.././isl/isl_tab_pip.c:5087:21: internal compiler error: in check, at
tree-vrp.c:155
5087 | __isl_give isl_vec *isl_tab_basic_set_non_trivial_lexmin(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
Makefile:1463: recipe for target 'isl_tab_pip.lo' failed
make[5]: *** [isl_tab_pip.lo] Error 1
make[5]: Leaving directory
'/home/devvm/Downloads/gcc-master/host-x86_64-pc-linux-gnu/isl'
Makefile:1571: recipe for target 'all-recursive' failed
make[4]: *** [all-recursive] Error 1
make[4]: Leaving directory
'/home/devvm/Downloads/gcc-master/host-x86_64-pc-linux-gnu/isl'
Makefile:1167: recipe for target 'all' failed
make[3]: *** [all] Error 2
make[3]: Leaving directory
'/home/devvm/Downloads/gcc-master/host-x86_64-pc-linux-gnu/isl'
Makefile:8812: recipe for target 'all-stage3-isl' failed
make[2]: *** [all-stage3-isl] Error 2
make[2]: Leaving directory '/home/devvm/Downloads/gcc-master'
Makefile:27710: recipe for target 'stage3-bubble' failed
make[1]: *** [stage3-bubble] Error 2
make[1]: Leaving directory '/home/devvm/Downloads/gcc-master'
Makefile:959: recipe for target 'all' failed
make: *** [all] Error 2
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Subject: [Bug fortran/87738] internal compiler error: in gfc_trans_use_stmts, at fortran/trans-decl.c:4920
Date: Wed, 24 Oct 2018 18:46:00 -0000
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2018-10-24
Ever confirmed|0 |1
--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Missing reproducer!-(
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Subject: [Bug testsuite/87740] Error Making Test Suite
Date: Wed, 24 Oct 2018 18:49:00 -0000
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
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CC| |mpolacek at gcc dot gnu.org
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
GCC 5.4 is not supported anymore.
>From gcc-bugs-return-618717-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 18:56:46 2018
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Subject: [Bug fortran/87734] ICE in is_illegal_recursion check for character len= parameter
Date: Wed, 24 Oct 2018 18:56:00 -0000
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
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--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
The ICE appeared between revisions r258235 (2018-03-04, OK) and r258362
(2018-03-08, ICE), likely r258347 (pr64124 and pr70409). For me the test
compiles with 6.4.0 and 7.3.0, but not for 6.4.1 or 7.3.1.
> Confirmed with current trunk. Could this be a duplicate of PR87644 ?
Rather a duplicate of pr87673.
>From gcc-bugs-return-618718-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 19:19:59 2018
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Subject: [Bug c++/87721] [9 Regression] ICE in linemap_position_for_line_and_column at gcc/libcpp/line-map.c:842 since r265271
Date: Wed, 24 Oct 2018 19:19:00 -0000
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--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
That's good you can reproduce that ;)
>From gcc-bugs-return-618719-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 19:40:02 2018
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Subject: [Bug c++/86288] Recognize __gnu and/or __gnu__ as attribute-namespace
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Oct 24 19:39:23 2018
New Revision: 265470
URL: https://gcc.gnu.org/viewcvs?rev=265470&root=gcc&view=rev
Log:
PR c++/86288
* parser.c (cp_parser_std_attribute): Canonicalize attr_ns, and when
:: is not present and attr_ns non-NULL, canonicalize also attr_id.
(cp_parser_attribute_spec): Fix comment typo.
* g++.dg/cpp0x/gen-attrs-66.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/gen-attrs-66.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/parser.c
trunk/gcc/testsuite/ChangeLog
>From gcc-bugs-return-618720-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 19:42:46 2018
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From: "dilyan.palauzov at aegee dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug bootstrap/87741] New: Don't build readline/libreadline.a in GDB, when --with-system-readline is supplied
Date: Wed, 24 Oct 2018 19:42:00 -0000
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Bug ID: 87741
Summary: Don't build readline/libreadline.a in GDB, when
--with-system-readline is supplied
Product: gcc
Version: 7.3.1
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Please integrate this snippet, so that gdb can skip building the shipped
libreadline, when the system-libreadline is used, see
https://sourceware.org/bugzilla/show_bug.cgi?id=18632 for details
diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -253,6 +253,12 @@ if test x$with_system_zlib = xyes ; then
noconfigdirs="$noconfigdirs zlib"
fi
+# Don't compile the bundled readline/libreadline.a in gdb-binutils if
+# --with-system-readline is provided.
+if test x$with_system_readline = xyes ; then
+ noconfigdirs="$noconfigdirs readline"
+fi
+
# some tools are so dependent upon X11 that if we're not building with X,
# it's not even worth trying to configure, much less build, that tool.
>From gcc-bugs-return-618721-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 20:08:03 2018
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Subject: [Bug bootstrap/87741] Don't build readline/libreadline.a in GDB, when --with-system-readline is supplied
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--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Patches should be sent to gcc-patches@ after reading
https://gcc.gnu.org/contribute.html .
>From gcc-bugs-return-618722-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 20:14:29 2018
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Subject: [Bug target/87631] new attribute for passing structures with multiple SIMD data members in registers
Date: Wed, 24 Oct 2018 20:14:00 -0000
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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>From gcc-bugs-return-618723-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 20:46:31 2018
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From: "tkoenig at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/87689] Memory corruption on Power 8
Date: Wed, 24 Oct 2018 20:46:00 -0000
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--- Comment #6 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #5)
> No, doesn't ring bells. But I have some more input:
>
> I couldn't get it to fail on powerpc64-linux.
> It fails on powerpc64le-linux only if the second file is compiled with -O0.
Not for me:
tkoenig@gcc2-power8 ~]$ ~/bin/gfortran -static-libgfortran main.f
doesntwork_p8.f
[tkoenig@gcc2-power8 ~]$ ./a.out
1 2 3 4 5 0
�
foo
[tkoenig@gcc2-power8 ~]$ valgrind ./a.out
==145922== Memcheck, a memory error detector
==145922== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==145922== Using Valgrind-3.12.0 and LibVEX; rerun with -h for copyright info
==145922== Command: ./a.out
==145922==
==145922== Conditional jump or move depends on uninitialised value(s)
==145922== at 0x10013EF8: write_decimal.constprop.10 (write.c:808)
==145922== by 0x100143F7: write_integer (write.c:1351)
==145922== by 0x1001584F: list_formatted_write_scalar (write.c:1865)
==145922== by 0x1001664B: _gfortrani_list_formatted_write (write.c:1943)
==145922== by 0x10005A47: transfer_integer (transfer.c:2294)
==145922== by 0x10005A47: _gfortran_transfer_integer_write (transfer.c:2300)
==145922== by 0x10002563: doesntwork_p8_ (in /home/tkoenig/a.out)
==145922== by 0x10002443: MAIN__ (in /home/tkoenig/a.out)
==145922== by 0x100021E3: main (in /home/tkoenig/a.out)
==145922==
==145922== Conditional jump or move depends on uninitialised value(s)
==145922== at 0x100100BC: extract_int (write.c:556)
==145922== by 0x10013F0B: write_decimal.constprop.10 (write.c:810)
==145922== by 0x1001584F: list_formatted_write_scalar (write.c:1865)
==145922== by 0x1001664B: _gfortrani_list_formatted_write (write.c:1943)
==145922== by 0x10005A47: transfer_integer (transfer.c:2294)
==145922== by 0x10005A47: _gfortran_transfer_integer_write (transfer.c:2300)
==145922== by 0x100025C7: doesntwork_p8_ (in /home/tkoenig/a.out)
==145922== by 0x10002443: MAIN__ (in /home/tkoenig/a.out)
==145922== by 0x100021E3: main (in /home/tkoenig/a.out)
==145922==
1 2 3 4 5 0
o
foo
Also, you have to add the six arguments; it works with five.
Next data point: On a POWER9, it also fails.
There is one other thing: With gcc9 on x86_64, one gets
gfortran -flto main.f doesnwork_p8.f
main.f:7: warning: type of 'doesntwork_p8' does not match original declaration
[-Wlto-type-mismatch]
7 | res = doesntwork_p8(c,1,2,3,4,5,6)
|
doesnwork_p8.f:1: note: type mismatch in parameter 3
1 | function doesntwork_p8(c,a1,a2,a3,a4,a5,a6)
|
doesnwork_p8.f:1: note: 'doesntwork_p8' was previously declared here
So, probably something wrong with our decls.
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Subject: [Bug fortran/87689] Memory corruption on Power 8
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--- Comment #7 from Segher Boessenkool <segher at gcc dot gnu.org> ---
-O0 is the default.
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Subject: [Bug rtl-optimization/87716] [9 Regression] FAIL: gcc.target/i386/pr57193.c scan-assembler-times movdqa 2
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--- Comment #3 from Segher Boessenkool <segher at gcc dot gnu.org> ---
(and swap xmm0 and xmm3 in all later instructions).
Yes. But it seems IRA doesn't figure this out.
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Subject: [Bug lto/87698] [lto] Shared library build with -ffat-lto-objects generates extra global absolute symbol relocations
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H.J. Lu <hjl.tools at gmail dot com> changed:
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----------------------------------------------------------------------------
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CC|hjl at gcc dot gnu.org |hjl.tools at gmail dot com
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--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> ---
This is a linker bug:
https://sourceware.org/bugzilla/show_bug.cgi?id=23818
>From gcc-bugs-return-618727-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 22:35:25 2018
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Subject: [Bug rtl-optimization/87720] [9 Regression] [MIPS] ICE: gcc.c-torture/execute/builtins/lib/chk.c:33:1: in int_mode_for_mode, at stor-layout.c:403 after r265398
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--- Comment #5 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Wed Oct 24 22:34:40 2018
New Revision: 265474
URL: https://gcc.gnu.org/viewcvs?rev=265474&root=gcc&view=rev
Log:
combine: Don't do make_more_copies for dest PC (PR87720)
Jumps are written in RTL as moves to PC. But the latter has no mode,
so we shouldn't try to use it. Since the optimization this routine
does does not really help for jumps at all, let's just skip it.
PR rtl-optimization/87720
* combine.c (make_more_copies): Skip if the dest is pc_rtx.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/combine.c
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Subject: [Bug rtl-optimization/87720] [9 Regression] [MIPS] ICE: gcc.c-torture/execute/builtins/lib/chk.c:33:1: in int_mode_for_mode, at stor-layout.c:403 after r265398
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
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--- Comment #6 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-618729-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 24 22:49:28 2018
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Subject: [Bug fortran/87734] ICE in is_illegal_recursion check for character len= parameter
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Paul Thomas <pault at gcc dot gnu.org> changed:
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--- Comment #3 from Paul Thomas <pault at gcc dot gnu.org> ---
(In reply to Dominique d'Humieres from comment #2)
> The ICE appeared between revisions r258235 (2018-03-04, OK) and r258362
> (2018-03-08, ICE), likely r258347 (pr64124 and pr70409). For me the test
> compiles with 6.4.0 and 7.3.0, but not for 6.4.1 or 7.3.1.
>
> > Confirmed with current trunk. Could this be a duplicate of PR87644 ?
>
> Rather a duplicate of pr87673.
Hi Bernhard and Dominique,
This is indeed a duplicate of pr87673. Swapping around the contained procedures
makes the ice go away in both cases.
I will put my thinking cap on. There are two places that could be touched to
deal with this.
Paul
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Subject: [Bug c++/87742] New: False warning 'array
Date: Thu, 25 Oct 2018 05:36:00 -0000
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Bug ID: 87742
Summary: False warning 'array
Product: gcc
Version: 6.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: lh_mouse at 126 dot com
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Created attachment 44894
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44894&action=edit
reduced testcase using CReduce
Compiling the attached source file with `-O2 -Wall` results in a warning about
array subscript out of bound:
```
lh_mouse@lhmouse-ideapad ~/Desktop $ g++-7 test.cpp -O2 -Wall -c -o /dev/null
test.cpp: In member function ‘void H::w() const’:
test.cpp:35:45: warning: array subscript is above array bounds [-Warray-bounds]
const type_info &m_fn3() const { return *b[o]; }
~^
lh_mouse@lhmouse-ideapad ~/Desktop $ g++-8 test.cpp -O2 -Wall -c -o /dev/null
test.cpp:25:32: warning: unnecessary parentheses in declaration of ‘b’
[-Wparentheses]
static const type_info *const(b[]);
^
test.cpp:48:48: warning: unnecessary parentheses in declaration of ‘b’
[-Wparentheses]
template <typename... l> const type_info *const(F<l...>::b[]){&typeid(l)...};
^
test.cpp: In member function ‘void H::w() const’:
test.cpp:35:45: warning: array subscript 3 is above array bounds of ‘const
std::type_info* const [3]’ [-Warray-bounds]
const type_info &m_fn3() const { return *b[o]; }
~^
```
(<https://wandbox.org/permlink/tv83ODDn9mWNhjvZ> for an online version.)
but in the context where `o` is used, it is expected to have a value of 2
instead of 3, so the out-of-bound access shouldn't happen.
Original (unreduced) code is at
<https://github.com/lhmouse/asteria/blob/c44081129943334baee36287378a0227edba9fd7/asteria/src/value.cpp#L292>.
The out-of-bound access is reported at
<https://github.com/lhmouse/asteria/blob/c44081129943334baee36287378a0227edba9fd7/asteria/src/rocket/variant.hpp#L330>.
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Subject: [Bug middle-end/87743] New: Vectorizer doesn't support conversion of different sizes
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Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
[hjl@gnu-efi-2 prpr87317]$ cat x.c
#define MAX 4
long long int dst[MAX];
int src[MAX];
void
foo (void)
{
int i;
for (i = 0; i < MAX; i++)
dst[i] = src[i];
}
[hjl@gnu-efi-2 prpr87317]$ gcc -S -O3 -march=haswell x.c
[hjl@gnu-efi-2 prpr87317]$ cat x.s
.file "x.c"
.text
.p2align 4,,15
.globl foo
.type foo, @function
foo:
.LFB0:
.cfi_startproc
movslq src(%rip), %rax
movslq src+8(%rip), %rcx
movslq src+12(%rip), %rdx
vmovq %rax, %xmm0
movslq src+4(%rip), %rax
vmovq %rcx, %xmm1
vpinsrq $1, %rdx, %xmm1, %xmm1
vpinsrq $1, %rax, %xmm0, %xmm0
vinserti128 $0x1, %xmm1, %ymm0, %ymm0
vmovdqu %ymm0, dst(%rip)
vzeroupper
ret
.cfi_endproc
.LFE0:
.size foo, .-foo
.comm src,16,16
.comm dst,32,32
.ident "GCC: (GNU) 8.2.1 20181011 (Red Hat 8.2.1-4)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-efi-2 prpr87317]$
>From gcc-bugs-return-618732-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 05:52:13 2018
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From: "lrflew.coll at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/87744] New: Some valid instantiations of linear_congruential_engine produce compiler errors when __int128 isn't available
Date: Thu, 25 Oct 2018 05:52:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87744
Bug ID: 87744
Summary: Some valid instantiations of
linear_congruential_engine produce compiler errors
when __int128 isn't available
Product: gcc
Version: 7.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: lrflew.coll at gmail dot com
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This issue occurs when the UIntType parameter is 64-bits, the platform being
compiled for can't use 128-bit integers (for example, 32-bit x86), and the LCG
parameters are chosen to meet certain requirements. An example of code that hit
this error is this:
#include <random>
int main() {
std::linear_congruential_engine<unsigned long long int,
864691128455135232ULL, 12347ULL, 4052555153018976267ULL> gen;
gen();
}
This compiles fine when __int128 is present, and fails when it isn't. When I
compile this with the -m32 flag, it prints out a lot of errors.
To summarize the problem, the error happens when determining which template
specification of _Select_uint_least_t to use in random.h. When determining how
to define operator() for the engine, it realizes that the A value is large
enough to overflow the 64-bit result type, and that the precondition for
Schrage's method isn't met (M % A > M / A). Because of this, it attempts to
find a larger integer type to use for the computation using
_Select_uint_least_t. Since the result type is already 64-bits, and the 128-bit
integer isn't available, it ends up not finding a large enough integer type,
and hits the static assert in the unspecified variant of _Select_uint_least_t.
This isn't a simple issue to resolve. The static assert that gets hit even says
"sorry, would be too much trouble for a slow result". However, as far as I can
tell, this instantiation of linear_congruential_engine is valid in the
standard, so it shouldn't result in an error. This instantiation doesn't
produce any compile errors when I tried it with MSVC, Boost, and libc++'s
implementation of linear_congruential_engine (though libc++ incorrectly uses
Schrage's method). While a solution would be slow, it's probably needed for
full standards compliance.
>From gcc-bugs-return-618733-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 06:01:47 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87743] Vectorizer doesn't support conversion of different sizes
Date: Thu, 25 Oct 2018 06:01:00 -0000
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Target| |x86_64-*-*
Component|middle-end |target
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Works for me on aarch64:
ldr q0, [x1]
sshll v1.2d, v0.2s, 0
sshll2 v0.2d, v0.4s, 0
str q1, [x0]
str q0, [x0, 16]
So it has to be a target issue.
>From gcc-bugs-return-618734-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 06:09:43 2018
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Subject: [Bug target/87743] Vectorizer doesn't support conversion of different sizes
Date: Thu, 25 Oct 2018 06:09:00 -0000
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--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
[hjl@gnu-efi-2 pr87317]$ cat y.c
#define MAX 4
long long int dst[MAX];
short src[MAX];
void
foo (void)
{
int i;
for (i = 0; i < MAX; i++)
dst[i] = src[i];
}
[hjl@gnu-efi-2 pr87317]$
/export/ssd/build/tools-build/glibc-many/install/compilers/aarch64-linux-gnu/bin/aarch64-glibc-linux-gnu-gcc
-S -O3 y.c
[hjl@gnu-efi-2 pr87317]$ cat y.s
.arch armv8-a
.file "y.c"
.text
.align 2
.p2align 3,,7
.global foo
.type foo, %function
foo:
.LFB0:
.cfi_startproc
adrp x3, src
add x1, x3, :lo12:src
adrp x2, dst
add x0, x2, :lo12:dst
ldrsh x5, [x3, #:lo12:src]
ldrsh x4, [x1, 2]
ldrsh x3, [x1, 4]
ldrsh x1, [x1, 6]
str x5, [x2, #:lo12:dst]
stp x4, x3, [x0, 8]
str x1, [x0, 24]
ret
.cfi_endproc
.LFE0:
.size foo, .-foo
.comm src,8,8
.comm dst,32,8
.ident "GCC: (GNU) 8.2.1 20180922"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-efi-2 pr87317]$ gcc -march=haswell -S -O3 y.c
[hjl@gnu-efi-2 pr87317]$ cat y.s
.file "y.c"
.text
.p2align 4,,15
.globl foo
.type foo, @function
foo:
.LFB0:
.cfi_startproc
movswq src(%rip), %rax
movswq src+4(%rip), %rcx
movswq src+6(%rip), %rdx
vmovq %rax, %xmm0
movswq src+2(%rip), %rax
vmovq %rcx, %xmm1
vpinsrq $1, %rdx, %xmm1, %xmm1
vpinsrq $1, %rax, %xmm0, %xmm0
vinserti128 $0x1, %xmm1, %ymm0, %ymm0
vmovdqu %ymm0, dst(%rip)
vzeroupper
ret
.cfi_endproc
.LFE0:
.size foo, .-foo
.comm src,8,8
.comm dst,32,32
.ident "GCC: (GNU) 8.2.1 20181011 (Red Hat 8.2.1-4)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-efi-2 pr87317]$
I don't see much differences between x86-64 and arm64.
>From gcc-bugs-return-618735-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 06:11:40 2018
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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87743] Vectorizer doesn't support conversion of different sizes
Date: Thu, 25 Oct 2018 06:11:00 -0000
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--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Hmm, it was working in GCC 7.3.x.
>From gcc-bugs-return-618736-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 06:12:55 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87742] False warning "warning: array subscript 3 is above array bounds of 'const std::type_info* const [3]' "
Date: Thu, 25 Oct 2018 06:12:00 -0000
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Liu Hao <lh_mouse at 126 dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #44894|0 |1
is obsolete| |
--- Comment #1 from Liu Hao <lh_mouse at 126 dot com> ---
Created attachment 44895
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44895&action=edit
manually reduced and formatted source without `std::type_info`
Updated testcase to get rid of `std::type_info` and re-formatted it a little.
>From gcc-bugs-return-618737-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 06:13:01 2018
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Subject: [Bug target/87743] Vectorizer doesn't support conversion of different sizes
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |7.3.0
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Even for x86_64:
vmovdqa src(%rip), %xmm0
vpmovsxdq %xmm0, %xmm1
vpsrldq $8, %xmm0, %xmm0
vpmovsxdq %xmm0, %xmm0
vmovaps %xmm1, dst(%rip)
vmovaps %xmm0, 16+dst(%rip)
ret
>From gcc-bugs-return-618738-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 06:14:43 2018
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Subject: [Bug target/87743] Vectorizer doesn't support conversion of different sizes
Date: Thu, 25 Oct 2018 06:14:00 -0000
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--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Andrew Pinski from comment #4)
> Even for x86_64:
> vmovdqa src(%rip), %xmm0
> vpmovsxdq %xmm0, %xmm1
> vpsrldq $8, %xmm0, %xmm0
> vpmovsxdq %xmm0, %xmm0
> vmovaps %xmm1, dst(%rip)
> vmovaps %xmm0, 16+dst(%rip)
> ret
Only when AVX2 is disabled.
>From gcc-bugs-return-618739-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 06:16:18 2018
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Subject: [Bug target/87743] Vectorizer doesn't support conversion of different sizes
Date: Thu, 25 Oct 2018 06:16:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87743
--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to H.J. Lu from comment #5)
> (In reply to Andrew Pinski from comment #4)
> > Even for x86_64:
> > vmovdqa src(%rip), %xmm0
> > vpmovsxdq %xmm0, %xmm1
> > vpsrldq $8, %xmm0, %xmm0
> > vpmovsxdq %xmm0, %xmm0
> > vmovaps %xmm1, dst(%rip)
> > vmovaps %xmm0, 16+dst(%rip)
> > ret
>
> Only when AVX2 is disabled.
I mean YMM disable.
>From gcc-bugs-return-618741-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 07:11:31 2018
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Subject: [Bug testsuite/87739] new test case gcc.dg/tree-ssa/pr84436-5.c fails with its introduction in r265463
Date: Thu, 25 Oct 2018 07:11:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Mine.
>From gcc-bugs-return-618740-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 07:11:07 2018
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Subject: [Bug other/87735] [9 regression] gcc.dg/tree-prof/time-profiler-1.c and -2.c and -3.c fail starting with r265454
Date: Thu, 25 Oct 2018 07:11:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
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--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Then mine.
>From gcc-bugs-return-618742-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 07:52:26 2018
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Subject: [Bug other/87735] [9 regression] gcc.dg/tree-prof/time-profiler-1.c and -2.c and -3.c fail starting with r265454
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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>From gcc-bugs-return-618743-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 08:02:42 2018
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Subject: [Bug fortran/87725] OpenMP 4.5 clause schedule(simd,monotonic:static) not understood
Date: Thu, 25 Oct 2018 08:01:00 -0000
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Oct 25 07:56:55 2018
New Revision: 265479
URL: https://gcc.gnu.org/viewcvs?rev=265479&root=gcc&view=rev
Log:
PR fortran/87725
* openmp.c (gfc_match_omp_clauses): Parse simd, monotonic and
nonmonotonic modifiers regardless of if they have been parsed
already or if the opposite one has. Fix up check whether
comma after modifier should be parsed.
(resolve_omp_clauses): Diagnose schedule modifier restrictions.
* c-c++-common/gomp/schedule-modifiers-1.c (bar): Separate modifier
from kind with a colon rather than comma.
* gfortran.dg/gomp/schedule-modifiers-1.f90: New test.
* gfortran.dg/gomp/schedule-modifiers-2.f90: New test.
Added:
trunk/gcc/testsuite/gfortran.dg/gomp/schedule-modifiers-1.f90
trunk/gcc/testsuite/gfortran.dg/gomp/schedule-modifiers-2.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/openmp.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/c-c++-common/gomp/schedule-modifiers-1.c
>From gcc-bugs-return-618746-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 08:29:30 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/87737] ICE tree check: expected ssa_name, have addr_expr in remap_gimple_op_r, at tree-inline.c:923
Date: Thu, 25 Oct 2018 08:29:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-25
Component|tree-optimization |fortran
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.
923 SSA_NAME_DEF_STMT (*tp) = wi_p->stmt;
(gdb) l
918 if (TREE_CODE (*tp) == SSA_NAME)
919 {
920 *tp = remap_ssa_name (*tp, id);
921 *walk_subtrees = 0;
922 if (is_lhs)
923 SSA_NAME_DEF_STMT (*tp) = wi_p->stmt;
924 return NULL;
925 }
926 else if (auto_var_in_fn_p (*tp, fn))
927 {
(gdb) p *tp
$1 = <addr_expr 0x7ffff6a62ec0>
(gdb) p is_lhs
$2 = true
we do not expect an invariant for remapping a definition.
# .MEM_4 = VDEF <.MEM_3(D)>
&str.6 = __builtin_malloc (1);
that looks like the following before remapping:
# .MEM_4 = VDEF <.MEM_3(D)>
__result_5 = __builtin_malloc (1);
and we remap __result_5 to the bogus value in remap_ssa_name via
/* Do not set DEF_STMT yet as statement is not copied yet. We do that
in copy_bb. */
new_tree = remap_decl (var, id);
where we remapped the PARM_DECL __result accordingly.
It smells like registering this __result mapping is bogus. Indeed we do this
here:
/* If the parameter is never assigned to, has no SSA_NAMEs created,
we would not need to create a new variable here at all, if it
weren't for debug info. Still, we can just use the argument
value. */
if (TREE_READONLY (p)
&& !TREE_ADDRESSABLE (p)
&& value && !TREE_SIDE_EFFECTS (value)
&& !def)
{
/* We may produce non-gimple trees by adding NOPs or introduce
invalid sharing when operand is not really constant.
It is not big deal to prohibit constant propagation here as
we will constant propagate in DOM1 pass anyway. */
if (is_gimple_min_invariant (value)
&& useless_type_conversion_p (TREE_TYPE (p),
TREE_TYPE (value))
/* We have to be very careful about ADDR_EXPR. Make sure
the base variable isn't a local variable of the inlined
function, e.g., when doing recursive inlining, direct or
mutually-recursive or whatever, which is why we don't
just test whether fn == current_function_decl. */
&& ! self_inlining_addr_expr (value, fn))
{
insert_decl_map (id, p, value);
insert_debug_decl_map (id, p, var);
return insert_init_debug_bind (id, bb, var, value, NULL);
}
}
but has no SSA_NAMEs created is just checked via looking for a default-def.
So the above looks like premature optimization to me unless we really
want to walk _all_ SSA names to look for one that eventually uses p
as SSA_NAME_VAR ...
Replacing !def with !is_gimple_reg (p) might be the least invasive fix...
What is odd of course is that the parameter is appearantly TREE_READONLY
but it is assigned to... That's probably because of the allocatable
flag?
Thus, the FE setting TREE_READONLY on __result is another place that
could get the fix - and that sounds better given TREE_READONLY might
have other unintended side-effects here.
>From gcc-bugs-return-618745-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 08:29:29 2018
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Subject: [Bug other/87735] [9 regression] gcc.dg/tree-prof/time-profiler-1.c and -2.c and -3.c fail starting with r265454
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |9.0
Rainer Orth <ro at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|powerpc64*-*-* |
CC| |ro at gcc dot gnu.org
Host|powerpc64*-*-* |
Build|powerpc64*-*-* |
--- Comment #2 from Rainer Orth <ro at gcc dot gnu.org> ---
It's not just powerpc64, but aarch64, arm, i?86, m68k, mips, powerpc*, s396,
sparc* and x86_64: probably everywhere.
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Subject: [Bug testsuite/86158] [9 regression] gcc.c-torture/unsorted/dump-noaddr.c.*i.lto-stream-out fails starting with 261546
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Martin Liška <marxin at gcc dot gnu.org> changed:
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--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
So now addresses are removed, now the difference is:
diff -u 1 2
--- 1 2018-10-25 10:21:14.687285804 +0200
+++ 2 2018-10-25 10:28:16.507976840 +0200
@@ -29,9 +29,6 @@
Encoding indexable <var_decl # M_var> as 0
Finished SCC of <addr_expr #>
- Streaming SCC of <integer_cst # 0>
- Finished SCC of <integer_cst # 0>
-
Creating compressed section
Creating output block for inline
Creating compressed section
Which is caused by --param ggc-min-heapsize=1 which is used by first invocation
of the compilation. Honza, do you call ggc_collect before streaming out?
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
signed vs. unsigned char
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Unless you reproduce with GCC 7 or later (GCC 6 is also this close >< of going
out of support)
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Subject: [Bug testsuite/87739] new test case gcc.dg/tree-ssa/pr84436-5.c fails with its introduction in r265463
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--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #2)
> signed vs. unsigned char
Yep, stupid mistake. I was told that by Alexander and I forgot to integrate
that..
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Subject: [Bug tree-optimization/87745] [9 regression] ICE in get_later_stmt, at tree-vectorizer.h:1109
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Rainer Orth <ro at gcc dot gnu.org> changed:
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Subject: [Bug tree-optimization/87745] New: [9 regression] ICE in get_later_stmt, at tree-vectorizer.h:1109
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Bug ID: 87745
Summary: [9 regression] ICE in get_later_stmt, at
tree-vectorizer.h:1109
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
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CC: rguenth at gcc dot gnu.org
Target Milestone: ---
Target: aarch64, arm, i?86, x86_64
Between 20181023 (r265430) and 20181024 (r265465), two testsuite regressions
appeared on Solaris 11/x86, both 32 and 64-bit:
+FAIL: gfortran.fortran-torture/execute/where_1.f90, -O3 -g (internal
compiler error)
+FAIL: gfortran.fortran-torture/execute/where_6.f90, -O3 -g (internal
compiler error)
According to gcc-testresults, they also occur on aarch64 and arm.
The log shows
during GIMPLE pass: vect
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gfortran.fortran-torture/execute/where_6.f90:23:0:
internal compiler error: in get_later_stmt, at tree-vectorizer.h:1109
0x9a590a7 get_later_stmt
/vol/gcc/src/hg/trunk/local/gcc/tree-vectorizer.h:1109
0x9a59274 get_later_stmt
/vol/gcc/src/hg/trunk/local/gcc/tree-vect-data-refs.c:220
0x9a59274 vect_preserves_scalar_order_p
/vol/gcc/src/hg/trunk/local/gcc/tree-vect-data-refs.c:221
0x9a49cb8 vect_analyze_data_ref_dependence
/vol/gcc/src/hg/trunk/local/gcc/tree-vect-data-refs.c:453
0x9a49cb8 vect_analyze_data_ref_dependences(_loop_vec_info*, unsigned int*)
/vol/gcc/src/hg/trunk/local/gcc/tree-vect-data-refs.c:559
0x9339749 vect_analyze_loop_2
/vol/gcc/src/hg/trunk/local/gcc/tree-vect-loop.c:1849
0x9339749 vect_analyze_loop(loop*, _loop_vec_info*, vec_info_shared*)
/vol/gcc/src/hg/trunk/local/gcc/tree-vect-loop.c:2268
0x9359b05 try_vectorize_loop_1
/vol/gcc/src/hg/trunk/local/gcc/tree-vectorizer.c:873
0x935a368 try_vectorize_loop
/vol/gcc/src/hg/trunk/local/gcc/tree-vectorizer.c:1015
0x935a87a vectorize_loops()
/vol/gcc/src/hg/trunk/local/gcc/tree-vectorizer.c:1097
which suggests this might have been caused by
2018-10-24 Richard Biener <rguenther@suse.de>
PR tree-optimization/87665
* tree-vect-data-refs.c (vect_preserves_scalar_order_p): Adjust
to reflect reality.
* gcc.dg/torture/pr87665.c: New testcase.
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Christophe Lyon <clyon at gcc dot gnu.org> changed:
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CC| |clyon at gcc dot gnu.org
--- Comment #1 from Christophe Lyon <clyon at gcc dot gnu.org> ---
Seeing the regression between r265448 and r265478 on aarch64
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Subject: [Bug tree-optimization/87745] [9 regression] ICE in get_later_stmt, at tree-vectorizer.h:1109
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
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--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed. Likely revision r265452.
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Subject: [Bug target/87743] Vectorizer doesn't support conversion of different sizes
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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Blocks| |53947
Ever confirmed|0 |1
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. It's a cost-model issue. With GCC 7 the vectorization with AVX256
was not profitable so AVX128 was chosen:
t.c:12:1: note: Final SLP tree for instance:
t.c:12:1: note: node
t.c:12:1: note: stmt 0 dst[0] = _11;
t.c:12:1: note: stmt 1 dst[1] = _17;
t.c:12:1: note: stmt 2 dst[2] = _23;
t.c:12:1: note: stmt 3 dst[3] = _29;
t.c:12:1: note: node (external)
t.c:12:1: note: stmt 0 _11 = (long long int) _10;
t.c:12:1: note: stmt 1 _17 = (long long int) _16;
t.c:12:1: note: stmt 2 _23 = (long long int) _22;
t.c:12:1: note: stmt 3 _29 = (long long int) _28;
t.c:12:1: note: Cost model analysis:
Vector inside of basic block cost: 2
Vector prologue cost: 3
Vector epilogue cost: 0
Scalar cost of basic block: 4
t.c:12:1: note: not vectorized: vectorization is not profitable.
t.c:12:1: note: ***** Re-trying analysis with vector size 16
but with GCC 8 we now say
t.c:12:1: note: Cost model analysis:
Vector inside of basic block cost: 20
Vector prologue cost: 28
Vector epilogue cost: 0
Scalar cost of basic block: 48
t.c:12:1: note: Basic block will be vectorized using SLP
t.c:12:1: note: SLPing BB part
costs on trunk are the same (the above is for generic, for haswell the
vector cost is even lower, 12).
So we end up with
<bb 2> [local count: 214748369]:
_10 = src[0];
_11 = (long long int) _10;
_16 = src[1];
_17 = (long long int) _16;
_22 = src[2];
_23 = (long long int) _22;
_28 = src[3];
_29 = (long long int) _28;
_13 = {_11, _17, _23, _29};
vect_cst__19 = _13;
MEM[(long long int *)&dst] = vect_cst__19;
note this just costs the vector construction + vector store against
the four scalar stores.
Note with my patches to consider both vector sizes this wouldn't be handled
either since I didn't update them to work for BB vectorization (and they
are not on trunk yet anyways). It would be an apples to oranges comparison
anyways since the scalar cost differs (the SLP tree is different for AVX128).
Anyways, costing for AVX128 is
t.c:12:1: note: Cost model analysis:
Vector inside of basic block cost: 44
Vector prologue cost: 0
Vector epilogue cost: 0
Scalar cost of basic block: 96
(haswell). So if you scale the vector cost by 0.5 because the scalar
cost is doubled you end up at 22 which would compare favorably to
12 + 28 == 40.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations
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Subject: [Bug tree-optimization/87745] [9 regression] ICE in get_later_stmt, at tree-vectorizer.h:1109
Date: Thu, 25 Oct 2018 08:57:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.
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Subject: [Bug tree-optimization/87665] [6/7 Regression] gcc HEAD (svn: 265340) breaks elements on resize
Date: Thu, 25 Oct 2018 08:59:00 -0000
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--- Comment #18 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Oct 25 08:59:07 2018
New Revision: 265481
URL: https://gcc.gnu.org/viewcvs?rev=265481&root=gcc&view=rev
Log:
2018-10-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/87665
PR tree-optimization/87745
* tree-vectorizer.h (get_earlier_stmt): Remove.
(get_later_stmt): Pick up UID from the original non-pattern stmt.
* gfortran.dg/20181025-1.f: New testcase.
Added:
trunk/gcc/testsuite/gfortran.dg/20181025-1.f
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vectorizer.h
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Subject: [Bug tree-optimization/87745] [9 regression] ICE in get_later_stmt, at tree-vectorizer.h:1109
Date: Thu, 25 Oct 2018 08:59:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87745
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Oct 25 08:59:07 2018
New Revision: 265481
URL: https://gcc.gnu.org/viewcvs?rev=265481&root=gcc&view=rev
Log:
2018-10-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/87665
PR tree-optimization/87745
* tree-vectorizer.h (get_earlier_stmt): Remove.
(get_later_stmt): Pick up UID from the original non-pattern stmt.
* gfortran.dg/20181025-1.f: New testcase.
Added:
trunk/gcc/testsuite/gfortran.dg/20181025-1.f
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vectorizer.h
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Subject: [Bug tree-optimization/87745] [9 regression] ICE in get_later_stmt, at tree-vectorizer.h:1109
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Blocks| |87665
Resolution|--- |FIXED
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87665
[Bug 87665] [6/7 Regression] gcc HEAD (svn: 265340) breaks elements on resize
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Subject: [Bug tree-optimization/87665] [6/7 Regression] gcc HEAD (svn: 265340) breaks elements on resize
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Bug 87665 depends on bug 87745, which changed state.
Bug 87745 Summary: [9 regression] ICE in get_later_stmt, at tree-vectorizer.h:1109
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87745
What |Removed |Added
----------------------------------------------------------------------------
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Subject: [Bug testsuite/86158] [9 regression] gcc.c-torture/unsorted/dump-noaddr.c.*i.lto-stream-out fails starting with 261546
Date: Thu, 25 Oct 2018 09:19:00 -0000
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--- Comment #5 from Jan Hubicka <hubicka at ucw dot cz> ---
>
> Which is caused by --param ggc-min-heapsize=1 which is used by first invocation
> of the compilation. Honza, do you call ggc_collect before streaming out?
So we have IL representation diverging because of gabage collection? That looks
like a bug...
Honza
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Subject: [Bug tree-optimization/87746] New: [9 Regression] ICE in vect_update_misalignment_for_peel, at tree-vect-data-refs.c:1035
Date: Thu, 25 Oct 2018 09:19:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87746
Bug ID: 87746
Summary: [9 Regression] ICE in
vect_update_misalignment_for_peel, at
tree-vect-data-refs.c:1035
Product: gcc
Version: 9.0
Status: UNCONFIRMED
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Reporter: rguenth at gcc dot gnu.org
Target Milestone: ---
Created attachment 44896
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44896&action=edit
autoreduced testcase
In 403.gcc built with -Ofast -mavx2 I see
during GIMPLE pass: vect
reload.c: In function 'move_replacements':
reload.c:5991:1: internal compiler error: in vect_update_misalignment_for_peel,
at tree-vect-data-refs.c:1035
5991 | move_replacements (x, y)
| ^~~~~~~~~~~~~~~~~
/space/rguenther/install/usr/local/bin/gcc -c -o rtlanal.o -DSPEC_CPU -DNDEBUG
-I. -Ofast -march=native -Wl,-rpath=/space/rguenther/install/usr/local/lib64
-w -g -DSPEC_CPU_LP64 rtlanal.c
0x156cc6c vect_update_misalignment_for_peel
/space/rguenther/src/svn/trunk/gcc/tree-vect-data-refs.c:1032
0x156cf2b vect_get_peeling_costs_all_drs
/space/rguenther/src/svn/trunk/gcc/tree-vect-data-refs.c:1366
0x156d92e vect_peeling_hash_get_lowest_cost(_vect_peel_info**,
_vect_peel_extended_info*)
/space/rguenther/src/svn/trunk/gcc/tree-vect-data-refs.c:1392
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Subject: [Bug tree-optimization/87746] [9 Regression] ICE in vect_update_misalignment_for_peel, at tree-vect-data-refs.c:1035
Date: Thu, 25 Oct 2018 09:20:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87746
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2018-10-25
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Target Milestone|--- |9.0
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.
>From gcc-bugs-return-618763-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 09:26:01 2018
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Subject: [Bug other/87735] [9 regression] gcc.dg/tree-prof/time-profiler-1.c and -2.c and -3.c fail starting with r265454
Date: Thu, 25 Oct 2018 09:25:00 -0000
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--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
It's broken even on x86_64, sorry for the breakage. Will fix soo.
>From gcc-bugs-return-618764-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 09:33:19 2018
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Subject: [Bug tree-optimization/87746] [9 Regression] ICE in vect_update_misalignment_for_peel, at tree-vect-data-refs.c:1035
Date: Thu, 25 Oct 2018 09:33:00 -0000
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Nicer testcase:
typedef struct rtx_def *rtx;
struct replacement {
rtx *where;
rtx *subreg_loc;
int mode;
};
static struct replacement replacements[150];
void move_replacements (rtx *x, int y, int n_replacements)
{
int i;
for (i = 0; i < n_replacements; i++)
if (replacements[i].subreg_loc == x)
replacements[i].subreg_loc = y;
else if (replacements[i].where == x)
{
replacements[i].where = y;
replacements[i].subreg_loc = 0;
}
}
>From gcc-bugs-return-618765-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 09:36:05 2018
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Subject: [Bug bootstrap/87747] New: [9 regression] Bootstrap failure if using gcc-4.6 as stage1 compiler
Date: Thu, 25 Oct 2018 09:36:00 -0000
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Bug ID: 87747
Summary: [9 regression] Bootstrap failure if using gcc-4.6 as
stage1 compiler
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: build
Severity: normal
Priority: P3
Component: bootstrap
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CC: iii at linux dot ibm.com, rsandifo at gcc dot gnu.org
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Target: arm-none-linux-gnueabihf
Build: arm-none-linux-gnueabihf
r264556 introduced a new construct to the initializer for rtx_code_size, but
this relies on the compiler being able to optimize away the expression
(FORMAT)[0] even at -O0. If it cannot do this, it will generate a static
constructor to initialize the array.
Unfortunately, cselib.c also has a static constructor that is used to
initialize the pool allocator for cselib VALUE constructs and this uses the
rtx_code_size array.
We therefore have a phase ordering problem where the two constructors must be
run in a precise order or the pool allocator will be initialized incorrectly.
How to repeat:
bootstrap the compiler with gcc-4.6 as the stage1 compiler; probably applies to
all targets, but originally reproduced on ubuntu-12.04 for Arm.
>From gcc-bugs-return-618766-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 09:40:43 2018
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Subject: [Bug testsuite/86158] [9 regression] gcc.c-torture/unsorted/dump-noaddr.c.*i.lto-stream-out fails starting with 261546
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--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
So apparently it started with r265391, where following hunk removal fixed that:
diff --git a/gcc/gimple-ssa-evrp-analyze.c b/gcc/gimple-ssa-evrp-analyze.c
index b7b0fd8f17c..45c215d78c6 100644
--- a/gcc/gimple-ssa-evrp-analyze.c
+++ b/gcc/gimple-ssa-evrp-analyze.c
@@ -209,10 +209,6 @@ evrp_range_analyzer::record_ranges_from_incoming_edge
(basic_block bb)
value_range *old_vr = get_value_range (vrs[i].first);
value_range tem (old_vr->kind (), old_vr->min (), old_vr->max
());
tem.intersect (vrs[i].second);
- if (tem.kind () == old_vr->kind ()
- && tem.min () == old_vr->min ()
- && tem.max () == old_vr->max ())
- continue;
push_value_range (vrs[i].first, vrs[i].second);
if (is_fallthru
&& all_uses_feed_or_dominated_by_stmt (vrs[i].first, stmt))
and as mentioned on IRC, w/o -fdump-tree-all it's all fine.
>From gcc-bugs-return-618767-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 09:46:22 2018
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Subject: [Bug testsuite/86158] [9 regression] gcc.c-torture/unsorted/dump-noaddr.c.*i.lto-stream-out fails starting with 261546
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--- Comment #7 from Martin Liška <marxin at gcc dot gnu.org> ---
And the problematic integer_cst lives in:
Creating output block for jmpfuncs
...
Creating compressed section
>From gcc-bugs-return-618768-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 09:56:45 2018
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Subject: [Bug testsuite/86158] [9 regression] gcc.c-torture/unsorted/dump-noaddr.c.*i.lto-stream-out fails starting with 261546
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jamborm at gcc dot gnu.org
--- Comment #8 from Martin Liška <marxin at gcc dot gnu.org> ---
Got it, if I print pointer value of streamed trees I see:
BAD:
Creating output block for jmpfuncs
Encoding indexable <integer_type # int> as 0
Encoding indexable <pointer_type #> as 1
Encoding indexable <pointer_type #> as 2
Streaming SCC of <addr_expr #> (0x7ffff6af78a0)
Streaming <addr_expr #> to jmpfuncs
Streaming <string_cst #> to jmpfuncs
Encoding indexable <array_type #> as 3
Encoding indexable <pointer_type #> as 4
Existing SCC of <string_cst #> (0x7ffff6ade5c8)
Finished SCC of <addr_expr #>
Streaming SCC of <integer_cst # 0> (0x7ffff6af25a0)
Finished SCC of <integer_cst # 0>
Existing SCC of <integer_cst # 0> (0x7ffff6af25a0)
Streaming SCC of <addr_expr #> (0x7ffff6af7900)
Streaming <addr_expr #> to jmpfuncs
Encoding indexable <pointer_type #> as 5
Encoding indexable <function_decl # exit> as 0
Finished SCC of <addr_expr #>
Streaming SCC of <integer_cst # 0> (0x7ffff6af25b8)
Finished SCC of <integer_cst # 0>
Existing SCC of <integer_cst # 0> (0x7ffff6af25b8)
Streaming SCC of <addr_expr #> (0x7ffff6af7940)
Streaming <addr_expr #> to jmpfuncs
Encoding indexable <var_decl # M_var> as 0
Finished SCC of <addr_expr #>
Streaming SCC of <integer_cst # 0> (0x7ffff6ae1d20)
Finished SCC of <integer_cst # 0>
Existing SCC of <integer_cst # 0> (0x7ffff6ae1d20)
GOOD:
Creating output block for jmpfuncs
Encoding indexable <integer_type # int> as 0
Encoding indexable <pointer_type #> as 1
Encoding indexable <pointer_type #> as 2
Streaming SCC of <addr_expr #> (0x7ffff6af99c0)
Streaming <addr_expr #> to jmpfuncs
Streaming <string_cst #> to jmpfuncs
Encoding indexable <array_type #> as 3
Encoding indexable <pointer_type #> as 4
Existing SCC of <string_cst #> (0x7ffff6ade640)
Finished SCC of <addr_expr #>
Streaming SCC of <integer_cst # 0> (0x7ffff6af3690)
Finished SCC of <integer_cst # 0>
Existing SCC of <integer_cst # 0> (0x7ffff6af3690)
Streaming SCC of <addr_expr #> (0x7ffff6af9a20)
Streaming <addr_expr #> to jmpfuncs
Encoding indexable <pointer_type #> as 5
Encoding indexable <function_decl # exit> as 0
Finished SCC of <addr_expr #>
Streaming SCC of <integer_cst # 0> (0x7ffff6af36a8)
Finished SCC of <integer_cst # 0>
Existing SCC of <integer_cst # 0> (0x7ffff6af36a8)
Streaming SCC of <addr_expr #> (0x7ffff6af9a40)
Streaming <addr_expr #> to jmpfuncs
Encoding indexable <var_decl # M_var> as 0
Finished SCC of <addr_expr #>
Existing SCC of <integer_cst # 0> (0x7ffff6af3690)
Existing SCC of <integer_cst # 0> (0x7ffff6af3690)
So as seen, the integer_cst in GOOD version points to same tree
(0x7ffff6af3690),
while in the bad one, there are multiple integer constants.
Martin I thought there's some caching happening in IPA CP?
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Subject: [Bug testsuite/86158] [9 regression] gcc.c-torture/unsorted/dump-noaddr.c.*i.lto-stream-out fails starting with 261546
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--- Comment #9 from Martin Liška <marxin at gcc dot gnu.org> ---
And the integer constants are created here:
ipa-prop.c:
if (addr_nonzero)
{
tree z = build_int_cst (TREE_TYPE (arg), 0);
ipa_set_jfunc_vr (jfunc, VR_ANTI_RANGE, z, z);
}
So it explains why it was exposed by a VRP change.
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Subject: [Bug tree-optimization/87746] [9 Regression] ICE in vect_update_misalignment_for_peel, at tree-vect-data-refs.c:1035
Date: Thu, 25 Oct 2018 10:16:00 -0000
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
caused by r265457 (as somewhat expected).
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Subject: [Bug fortran/87673] Errors caused by using function for character length in allocate with typespec
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
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--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
From pr87734
> This is indeed a duplicate of pr87673. ...
*** This bug has been marked as a duplicate of bug 87734 ***
>From gcc-bugs-return-618772-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 10:32:41 2018
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Subject: [Bug fortran/87734] ICE in is_illegal_recursion check for character len= parameter
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--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
*** Bug 87673 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-618773-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 10:34:34 2018
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Subject: [Bug fortran/87711] ICE in gfc_trans_transfer, at fortran/trans-io.c:2676
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
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--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Affects versions down to at least 5
down to at least 4.8.
>From gcc-bugs-return-618774-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 10:40:15 2018
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Subject: [Bug c++/83568] thread_local class members not initialized before accessed using operator ::
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I think this is a duplicate of PR 60673
*** This bug has been marked as a duplicate of bug 60673 ***
>From gcc-bugs-return-618775-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 10:40:16 2018
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Subject: [Bug c++/60673] c++11 static thread_local members may cause a segfault when accessed via 'this->'
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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CC| |tinrow at gmail dot com
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
*** Bug 83568 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-618776-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 10:40:55 2018
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Subject: [Bug fortran/87043] maybe-uninitialized warning for initialized variable
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
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--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Not sure if
>
> allocate(error_messages(world_size), stat=allocstat)
> max_err_len = maxval(len_trim(error_messages))
>
> is well-defined fortran iff allocation fails? I suppose not, so
> warning is correct, testcase is broken?
There is no warning if I replace
if (world_rank == 0) then
with
if (world_rank == 0 .and. allocstat == 0) then
> Oh, I see your point. But then still the question is why this warning
> is not shown when compiling with -Og.
Why do you expect middle-end warnings to be independent of the optimization
level?
In any case, if this PR is not closed, its component should be moved to
middle-end.
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Subject: [Bug c++/60673] c++11 static thread_local members may cause a segfault when accessed via 'this->'
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This seems to be fixed in GCC 5 onwards (and recent Clang versions).
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59994
[Bug 59994] [meta-bug] thread_local
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83568
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |NEW
Last reconfirmed| |2018-10-25
Resolution|DUPLICATE |---
Ever confirmed|0 |1
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Or maybe not, since that one appears to be fixed.
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Subject: [Bug fortran/87734] [7/8/9 Regression] ICE in is_illegal_recursion check for character len= parameter
Date: Thu, 25 Oct 2018 10:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87734
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P4
Known to work| |6.4.0, 7.3.0
Target Milestone|9.0 |7.4
Summary|ICE in is_illegal_recursion |[7/8/9 Regression] ICE in
|check for character len= |is_illegal_recursion check
|parameter |for character len=
| |parameter
Known to fail|6.4.0, 7.3.0 |6.4.1, 7.3.1, 9.0
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Subject: [Bug c++/59994] [meta-bug] thread_local
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59994
Bug 59994 depends on bug 83568, which changed state.
Bug 83568 Summary: thread_local class members not initialized before accessed using operator ::
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83568
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
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Subject: [Bug c++/83568] thread_local class members not initialized before accessed using operator ::
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Ah but it is a dup of PR 60702
*** This bug has been marked as a duplicate of bug 60702 ***
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Subject: [Bug c++/60702] thread_local initialization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60702
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
*** Bug 83568 has been marked as a duplicate of this bug. ***
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Subject: [Bug c++/59994] [meta-bug] thread_local
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-25
Version|4.8.3 |unknown
Depends on| |61991, 67135, 66360, 66944,
| |66967, 69775, 81880
Ever confirmed|0 |1
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61991
[Bug 61991] Destructors not always called for statically initialized
thread_local objects
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66360
[Bug 66360] thread_local variable needs copy constructor
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66944
[Bug 66944] ICE on static thread_local member in class template
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66967
[Bug 66967] thread local's destructor not called if compile with
-fno-use-cxa-atexit
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67135
[Bug 67135] [thread_local] heap-use-after-free (OS X 10.10.4)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69775
[Bug 69775] thread_local extern variable causes linkage error
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81880
[Bug 81880] thread_local static member template initialisation fails
>From gcc-bugs-return-618784-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 10:58:53 2018
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Subject: [Bug c++/60702] thread_local initialization
Date: Thu, 25 Oct 2018 10:58:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2017-11-15 00:00:00 |2018-10-25
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=81880
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Another wrong-code example taken from
https://gcc.gnu.org/ml/gcc-help/2018-10/msg00116.html
class B
{
int* x;
public:
static thread_local B tmp;
B() { x = new int(); }
void f() { *x = 0; }
};
thread_local B B::tmp;
template<class T>
void f()
{
B::tmp.f();
}
void g()
{
B::tmp.f();
}
int main()
{
//g();
f<int>();
}
Unless the non-template g() is called first, the thread_local variable isn't
initialized.
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Subject: [Bug libstdc++/87744] Some valid instantiations of linear_congruential_engine produce compiler errors when __int128 isn't available
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-25
Ever confirmed|0 |1
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From: "timj at gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87748] New: G++-8 treats SFINAE as error
Date: Thu, 25 Oct 2018 11:03:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87748
Bug ID: 87748
Summary: G++-8 treats SFINAE as error
Product: gcc
Version: 8.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: timj at gnu dot org
Target Milestone: ---
Created attachment 44897
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44897&action=edit
g++-8 SFINAE Error Test Case
The following (reduced) code example uses SFINAE to discern argument types in a
visitor pattern. The original bug report is here:
https://github.com/tim-janik/beast/issues/72#issuecomment-432874963
It works well under clang-6 and g++-7.3. With g++-8.1.1 (and reportedly
g++-8.2.1) a template substitution failure during a method presence check on
std::string is promoted to an error, even though a std::false_type substitution
variant exists that should be picked up instead.
Not only do other compiler (versions) compile this correctly, but duplicating a
seemingly unrelated static_assert in the code also "remedies" the g++-8
treatment of the failure as error, tested via -DWITHASSERT below.
EXPECTED:
$ g++ --version
g++ (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
$ g++ -std=gnu++14 -Wall -O2 aidavisit.cc && ./a.out
visit_string: some_string="A std::string"
BUGGY BEHAVIOUR:
$ g++ --version
g++ (GCC) 8.1.1 20180712 (Red Hat 8.1.1-5)
$ g++ -std=gnu++14 -Wall -O2 aidavisit.cc && ./a.out
aidavisit.cc:19:77: error: 'class std::__cxx11::basic_string<char>' has no
member named '__aida_visit__'
$ g++ -std=gnu++14 -Wall -O2 aidavisit.cc -DWITHASSERT && ./a.out
visit_string: some_string="A std::string"
>From gcc-bugs-return-618787-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 11:04:21 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/87746] [9 Regression] ICE in vect_update_misalignment_for_peel, at tree-vect-data-refs.c:1035
Date: Thu, 25 Oct 2018 11:04:00 -0000
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--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ick. if-conversion leaves us with quite a mess:
<bb 3> [local count: 955630224]:
# i_20 = PHI <i_17(10), 0(21)>
_1 = replacements[i_20].subreg_loc;
_2 = (long int) y_13(D);
_3 = (struct rtx_def * *) _2;
_ifc__42 = replacements[i_20].subreg_loc;
_ifc__43 = _3;
_ifc__44 = _1 == x_12(D) ? _ifc__43 : _ifc__42;
replacements[i_20].subreg_loc = _ifc__44;
_4 = replacements[i_20].where;
_22 = _1 == x_12(D);
_9 = ~_22;
_18 = _4 == x_12(D);
_19 = _9 & _18;
_5 = (long int) y_13(D);
_6 = (struct rtx_def * *) _5;
_ifc__45 = replacements[i_20].where;
_ifc__46 = _6;
_ifc__47 = _19 ? _ifc__46 : _ifc__45;
replacements[i_20].where = _ifc__47;
_ifc__48 = replacements[i_20].subreg_loc;
_ifc__49 = 0B;
_ifc__50 = _19 ? _ifc__49 : _ifc__48;
replacements[i_20].subreg_loc = _ifc__50;
i_17 = i_20 + 1;
if (n_replacements_11(D) > i_17)
goto <bb 10>; [89.00%]
else
goto <bb 8>; [11.00%]
throwing VN on if-converted loops improves this to the following also avoiding
the ICE:
<bb 3> [local count: 955630224]:
# i_20 = PHI <i_17(10), 0(21)>
_1 = replacements[i_20].subreg_loc;
_2 = (long int) y_13(D);
_3 = (struct rtx_def * *) _2;
_ifc__44 = _1 != x_12(D) ? _1 : _3;
replacements[i_20].subreg_loc = _ifc__44;
_4 = replacements[i_20].where;
_22 = _1 == x_12(D);
_9 = ~_22;
_18 = _4 == x_12(D);
_19 = _9 & _18;
_ifc__47 = _19 ? _3 : _4;
replacements[i_20].where = _ifc__47;
_ifc__50 = _19 ? 0B : _ifc__44;
replacements[i_20].subreg_loc = _ifc__50;
i_17 = i_20 + 1;
if (n_replacements_11(D) > i_17)
goto <bb 10>; [89.00%]
else
goto <bb 8>; [11.00%]
The dead store is of course still confusing us. My old store-commoning
patch would maybe help here. Or a region-based DSE. Or somehow
integrating basic DSE with VN.
Anyhow the ICE is still odd.
>From gcc-bugs-return-618788-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 11:13:42 2018
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Subject: [Bug c++/87748] [8/9 Regression] G++-8 treats SFINAE as error
Date: Thu, 25 Oct 2018 11:13:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Known to work| |7.3.0
Keywords| |rejects-valid
Last reconfirmed| |2018-10-25
CC| |jason at gcc dot gnu.org
Ever confirmed|0 |1
Summary|G++-8 treats SFINAE as |[8/9 Regression] G++-8
|error |treats SFINAE as error
Known to fail| |8.2.0, 9.0
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This regressed with r258824
PR c++/78489 - wrong SFINAE behavior.
PR c++/84489
* pt.c (type_unification_real): Don't defer substitution failure.
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Subject: [Bug libstdc++/87749] New: [6/7/8/9 Regression] std::__cxx11::basic_string move assignment does deep copy unnecessarily
Date: Thu, 25 Oct 2018 11:38:00 -0000
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Bug ID: 87749
Summary: [6/7/8/9 Regression] std::__cxx11::basic_string move
assignment does deep copy unnecessarily
Product: gcc
Version: 9.0
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#include <string>
bool oom = false;
template<typename T>
struct alloc
{
using value_type = T;
using size_type = unsigned long;
using difference_type = long;
using reference = T&;
using const_reference = T&;
using pointer = T*;
using const_pointer = const T*;
int not_empty = 0;
template<typename U>
struct rebind { using other = alloc<U>; };
alloc() = default;
template<typename U>
alloc(const alloc<U>&) { }
T* allocate(unsigned long n) {
if (oom)
throw std::bad_alloc();
return std::allocator<T>().allocate(n);
}
void deallocate(T* p, unsigned long n) {
std::allocator<T>().deallocate(p, n);
}
};
template<typename T, typename U>
bool operator==(const alloc<T>&, const alloc<U>&) { return true; }
template<typename T, typename U>
bool operator!=(const alloc<T>&, const alloc<U>&) { return false; }
int main()
{
using string = std::basic_string<char, std::char_traits<char>, alloc<char>>;
string s = "a string that is longer than a short string";
oom = true;
string ss;
ss = std::move(s);
}
The move assignment should transfer the allocated storage from s to ss, but
instead it does a deep copy, which throws here when an out-of-memory condition
is simulated.
The problem is that the move assignment operator only checks _S_always_equal
and if it's false doesn't do a runtime check for allocator equality.
I'm marking this as a regression, because prior to GCC 5 this code would not
fail when compiled with no options except -std=c++11. Since the default string
changed to the cxx11 one it fails (but still passes if the COW string is used).
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Subject: [Bug tree-optimization/87746] [9 Regression] ICE in vect_update_misalignment_for_peel, at tree-vect-data-refs.c:1035
Date: Thu, 25 Oct 2018 12:01:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
CC| |rsandifo at gcc dot gnu.org
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
So the issue of this ICE is that we have
t.c:11:3: note: Detected interleaving strided store of size 2
t.c:11:3: note: replacements[i_20].where = _ifc__47;
t.c:11:3: note: replacements[i_20].subreg_loc = _ifc__44;
t.c:11:3: note: Detected interleaving strided store of size 1
t.c:11:3: note: replacements[i_20].subreg_loc = _ifc__50;
that's sth we do not support. Well, we kind-of do but support was
rotten because we'd never create such groups before cited refs.
We simply do
/* Check that the size of the interleaving is equal to count for stores,
i.e., that there are no gaps. */
if (groupsize != count
&& !DR_IS_READ (dr))
{
groupsize = count;
STMT_VINFO_STRIDED_P (stmt_info) = true;
}
not sure why we adjust groupsize here. The intent was probably to allow
a gap at the end of the group but not inside? Commenting the above
ICEs later in
/* There can only be a gap at the end of the group if the stride is
known at compile time. */
gcc_assert (!STMT_VINFO_STRIDED_P (first_stmt_info) || gap == 0);
and it's also !slp so
/* Stores can't yet have gaps. */
gcc_assert (slp || vls_type == VLS_LOAD || gap == 0);
would also ICE.
Anyhow - that very assert in vect_update_misalignment_for_peel got quite some
updates and I wonder why it's not using DR_STEP. Well, nobody thought of
groupsize not reflecting, well, group size...
For the assert I think multiplying by group-size or step is premature
anyhow. Ah, I guess it might be to handle different sized accesses
at the same place with same stride. But then since same-align refs
have dependence distance zero their DR_MISALIGNMENT should be the same...
The following survives preliminary testing. Richard? For strided
grouped stores you should be able to see bogus misalignment adjustments
with your change. Of course misaligned is misaligned so it may not
really matter...
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c
index 9185b1bd1c0..5264ffffb9f 100644
--- a/gcc/tree-vect-data-refs.c
+++ b/gcc/tree-vect-data-refs.c
@@ -1015,15 +1015,8 @@ vect_update_misalignment_for_peel (dr_vec_info *dr_info,
stmt_vec_info stmt_info = dr_info->stmt;
stmt_vec_info peel_stmt_info = dr_peel_info->stmt;
- /* For interleaved data accesses the step in the loop must be multiplied by
- the size of the interleaving group. */
- if (STMT_VINFO_GROUPED_ACCESS (stmt_info))
- dr_size *= DR_GROUP_SIZE (DR_GROUP_FIRST_ELEMENT (stmt_info));
- if (STMT_VINFO_GROUPED_ACCESS (peel_stmt_info))
- dr_peel_size *= DR_GROUP_SIZE (peel_stmt_info);
-
- /* It can be assumed that the data refs with the same alignment as dr_peel
- are aligned in the vector loop. */
+ /* It can be assumed that if dr_info has the same alignment as dr_peel,
+ it is aligned in the vector loop. */
same_aligned_drs = STMT_VINFO_SAME_ALIGN_REFS (peel_stmt_info);
FOR_EACH_VEC_ELT (same_aligned_drs, i, current_dr)
{
@@ -1031,12 +1024,19 @@ vect_update_misalignment_for_peel (dr_vec_info
*dr_info,
continue;
gcc_assert (!known_alignment_for_access_p (dr_info)
|| !known_alignment_for_access_p (dr_peel_info)
- || (DR_MISALIGNMENT (dr_info) / dr_size
- == DR_MISALIGNMENT (dr_peel_info) / dr_peel_size));
+ || (DR_MISALIGNMENT (dr_info)
+ == DR_MISALIGNMENT (dr_peel_info)));
SET_DR_MISALIGNMENT (dr_info, 0);
return;
}
+ /* For interleaved data accesses the step in the loop must be multiplied by
+ the size of the interleaving group. */
+ if (STMT_VINFO_GROUPED_ACCESS (stmt_info))
+ dr_size *= TREE_INT_CST_LOW (DR_STEP (dr_info->dr));
+ if (STMT_VINFO_GROUPED_ACCESS (peel_stmt_info))
+ dr_peel_size *= TREE_INT_CST_LOW (DR_STEP (dr_peel_info->dr));
+
if (known_alignment_for_access_p (dr_info)
&& known_alignment_for_access_p (dr_peel_info))
{
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Subject: [Bug libstdc++/87749] [6/7/8/9 Regression] std::__cxx11::basic_string move assignment does deep copy unnecessarily
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----------------------------------------------------------------------------
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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>From gcc-bugs-return-618794-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 12:17:26 2018
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Subject: [Bug c++/87748] [8/9 Regression] G++-8 treats SFINAE as error
Date: Thu, 25 Oct 2018 12:17:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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>From gcc-bugs-return-618792-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 12:17:01 2018
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/87746] [9 Regression] ICE in vect_update_misalignment_for_peel, at tree-vect-data-refs.c:1035
Date: Thu, 25 Oct 2018 12:17:00 -0000
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--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Actually much simpler and correct like the following but test coverage for
peeling seems to be low.
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c
index 9185b1bd1c0..20ecbfb45b7 100644
--- a/gcc/tree-vect-data-refs.c
+++ b/gcc/tree-vect-data-refs.c
@@ -1010,20 +1010,10 @@ vect_update_misalignment_for_peel (dr_vec_info
*dr_info,
unsigned int i;
vec<dr_p> same_aligned_drs;
struct data_reference *current_dr;
- int dr_size = vect_get_scalar_dr_size (dr_info);
- int dr_peel_size = vect_get_scalar_dr_size (dr_peel_info);
- stmt_vec_info stmt_info = dr_info->stmt;
stmt_vec_info peel_stmt_info = dr_peel_info->stmt;
- /* For interleaved data accesses the step in the loop must be multiplied by
- the size of the interleaving group. */
- if (STMT_VINFO_GROUPED_ACCESS (stmt_info))
- dr_size *= DR_GROUP_SIZE (DR_GROUP_FIRST_ELEMENT (stmt_info));
- if (STMT_VINFO_GROUPED_ACCESS (peel_stmt_info))
- dr_peel_size *= DR_GROUP_SIZE (peel_stmt_info);
-
- /* It can be assumed that the data refs with the same alignment as dr_peel
- are aligned in the vector loop. */
+ /* It can be assumed that if dr_info has the same alignment as dr_peel,
+ it is aligned in the vector loop. */
same_aligned_drs = STMT_VINFO_SAME_ALIGN_REFS (peel_stmt_info);
FOR_EACH_VEC_ELT (same_aligned_drs, i, current_dr)
{
@@ -1031,8 +1021,8 @@ vect_update_misalignment_for_peel (dr_vec_info *dr_info,
continue;
gcc_assert (!known_alignment_for_access_p (dr_info)
|| !known_alignment_for_access_p (dr_peel_info)
- || (DR_MISALIGNMENT (dr_info) / dr_size
- == DR_MISALIGNMENT (dr_peel_info) / dr_peel_size));
+ || (DR_MISALIGNMENT (dr_info)
+ == DR_MISALIGNMENT (dr_peel_info)));
SET_DR_MISALIGNMENT (dr_info, 0);
return;
}
@@ -1040,10 +1030,8 @@ vect_update_misalignment_for_peel (dr_vec_info *dr_info,
if (known_alignment_for_access_p (dr_info)
&& known_alignment_for_access_p (dr_peel_info))
{
- bool negative = tree_int_cst_compare (DR_STEP (dr_info->dr),
- size_zero_node) < 0;
int misal = DR_MISALIGNMENT (dr_info);
- misal += negative ? -npeel * dr_size : npeel * dr_size;
+ misal += npeel * TREE_INT_CST_LOW (DR_STEP (dr_info->dr));
misal &= DR_TARGET_ALIGNMENT (dr_info) - 1;
SET_DR_MISALIGNMENT (dr_info, misal);
return;
>From gcc-bugs-return-618795-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 12:18:46 2018
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Subject: [Bug bootstrap/87747] [9 regression] Bootstrap failure if using gcc-4.6 as stage1 compiler
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Expanding the || test is probably the fix.
>From gcc-bugs-return-618796-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 12:32:41 2018
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Subject: [Bug fortran/86907] [9 Regression] bogus warning "No location in expression near"
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
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----------------------------------------------------------------------------
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--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
I cannot reproduce it on x86_64-apple-darwin17 with various revisions
configured with --enable-checking=release or --enable-checking=yes.
>From gcc-bugs-return-618797-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 12:35:08 2018
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Subject: [Bug fortran/87043] maybe-uninitialized warning for initialized variable
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Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #4 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
From the documentation of -Wmaybe-uninitialized:
"These warnings are only possible in optimizing compilation, because otherwise
GCC does not keep track of the state of variables. "
Maybe you could try -Og, this should strike a good balance between optimization
and debugging.
Closing.
>From gcc-bugs-return-618798-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 12:36:31 2018
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Subject: [Bug fortran/87255] Different semantics of OpenMP combined construct and nested constructs
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
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----------------------------------------------------------------------------
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--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed for gcc8.2 and trunk (9.0).
>From gcc-bugs-return-618799-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 12:40:55 2018
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Subject: [Bug fortran/87255] Different semantics of OpenMP combined construct and nested constructs
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I'm aware of this, but fixing it without actually penalizing performance won't
be very easy. Have been also waiting on what will be voted into OpenMP 5.0
here, in the end it says that the expressions are to be evaluated before the
outermost composite loop construct, but not before the outermost combined
construct, even when at some point the suggestion was to evaluate it before the
outermost combined construct, which would make this report invalid.
>From gcc-bugs-return-618800-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 13:03:53 2018
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Subject: [Bug libstdc++/87106] Group move and destruction of the source, where possible, for speed
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--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> ---
Author: glisse
Date: Thu Oct 25 13:03:13 2018
New Revision: 265485
URL: https://gcc.gnu.org/viewcvs?rev=265485&root=gcc&view=rev
Log:
Relocation (= move+destroy)
2018-10-25 Marc Glisse <marc.glisse@inria.fr>
PR libstdc++/87106
* include/bits/alloc_traits.h (_S_construct, _S_destroy, construct,
destroy): Add noexcept specification.
* include/bits/allocator.h (construct, destroy): Likewise.
* include/ext/alloc_traits.h (construct, destroy): Likewise.
* include/ext/malloc_allocator.h (construct, destroy): Likewise.
* include/ext/new_allocator.h (construct, destroy): Likewise.
* include/bits/stl_uninitialized.h (__relocate_object_a, __relocate_a,
__relocate_a_1): New functions.
(__is_trivially_relocatable): New class.
* include/bits/stl_vector.h (__use_relocate): New static member.
* include/bits/vector.tcc (reserve, _M_realloc_insert,
_M_default_append): Use __relocate_a.
(reserve, _M_assign_aux, _M_realloc_insert, _M_fill_insert,
_M_default_append, _M_range_insert): Move _GLIBCXX_ASAN_ANNOTATE_REINIT
after _Destroy.
* testsuite/23_containers/vector/modifiers/push_back/49836.cc:
Replace CopyConsOnlyType with DelAnyAssign.
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/alloc_traits.h
trunk/libstdc++-v3/include/bits/allocator.h
trunk/libstdc++-v3/include/bits/stl_uninitialized.h
trunk/libstdc++-v3/include/bits/stl_vector.h
trunk/libstdc++-v3/include/bits/vector.tcc
trunk/libstdc++-v3/include/ext/alloc_traits.h
trunk/libstdc++-v3/include/ext/malloc_allocator.h
trunk/libstdc++-v3/include/ext/new_allocator.h
trunk/libstdc++-v3/testsuite/23_containers/vector/modifiers/push_back/49836.cc
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Subject: [Bug bootstrap/87747] [9 regression] Bootstrap failure if using gcc-4.6 as stage1 compiler
Date: Thu, 25 Oct 2018 13:28:00 -0000
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--- Comment #2 from Ilya Leoshkevich <iii at linux dot ibm.com> ---
This is a little bit more complicated, because EQ_ATTR_ALT is valid only for
GENERATOR_FILEs. The regtest has just finished, so I will post the patch to
the mailing list now.
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Subject: [Bug bootstrap/87747] [9 regression] Bootstrap failure if using gcc-4.6 as stage1 compiler
Date: Thu, 25 Oct 2018 13:47:00 -0000
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--- Comment #3 from iii at gcc dot gnu.org ---
Author: iii
Date: Thu Oct 25 13:47:10 2018
New Revision: 265488
URL: https://gcc.gnu.org/viewcvs?rev=265488&root=gcc&view=rev
Log:
Fix rtx_code_size static initialization order fiasco
r264556 and r264537 changed the format of EQ_ATTR_ALT RTXs to "ww",
which also required adjusting rtx_code_size initializer. In order to
simplify things, the list of rtx_codes known to use HOST_WIDE_INTs was
replaced by the format string check. However, unlike the old one, this
new check cannot be always performed at compile time, in which case a
static constructor is generated. This may lead to a static
initialization order fiasco with respect to other static constructors
in the compiler, in case of PR87747, cselib's pool_allocator.
gcc/ChangeLog:
2018-10-25 Ilya Leoshkevich <iii@linux.ibm.com>
PR bootstrap/87747
* rtl.c (RTX_CODE_HWINT_P_1): New helper macro.
(RTX_CODE_HWINT_P): New macro.
(rtx_code_size): Use RTX_CODE_HWINT_P ().
Modified:
trunk/gcc/ChangeLog
trunk/gcc/rtl.c
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Subject: [Bug tree-optimization/87665] [6/7 Regression] gcc HEAD (svn: 265340) breaks elements on resize
Date: Thu, 25 Oct 2018 13:47:00 -0000
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--- Comment #19 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Oct 25 13:46:20 2018
New Revision: 265487
URL: https://gcc.gnu.org/viewcvs?rev=265487&root=gcc&view=rev
Log:
2018-10-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/87665
PR tree-optimization/87745
* tree-vectorizer.h (get_earlier_stmt): Remove.
(get_later_stmt): Pick up UID from the original non-pattern stmt.
* gfortran.dg/20181025-1.f: New testcase.
Added:
branches/gcc-8-branch/gcc/testsuite/gfortran.dg/20181025-1.f
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/testsuite/ChangeLog
branches/gcc-8-branch/gcc/tree-vectorizer.h
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Subject: [Bug tree-optimization/87745] [9 regression] ICE in get_later_stmt, at tree-vectorizer.h:1109
Date: Thu, 25 Oct 2018 13:47:00 -0000
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--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Oct 25 13:46:20 2018
New Revision: 265487
URL: https://gcc.gnu.org/viewcvs?rev=265487&root=gcc&view=rev
Log:
2018-10-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/87665
PR tree-optimization/87745
* tree-vectorizer.h (get_earlier_stmt): Remove.
(get_later_stmt): Pick up UID from the original non-pattern stmt.
* gfortran.dg/20181025-1.f: New testcase.
Added:
branches/gcc-8-branch/gcc/testsuite/gfortran.dg/20181025-1.f
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/testsuite/ChangeLog
branches/gcc-8-branch/gcc/tree-vectorizer.h
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #12 from Douglas Mencken <dougmencken at gmail dot com> ---
I finished it
git bisect start
git bisect good gcc-7_3_0-release # r257041
git bisect bad gcc-8_1_0-release # r259829
git bisect good 7369309777f6d6e630fb7763bcd08a0317727e36 # r247015 merge parent
git bisect bad b50e3690fbcafedefdb888c2d66725b8f405706e # r253946
git bisect skip 61cb18166c6a1507af78ce73a4e3c8a21b0cb8ab # r250239
git bisect good 4f5b1ee8ccfd04b939e07bd99f4ca6f8d3f5aa83 # r249172
git bisect good a5079b7fe2c7b4c862704149db5fb0948a7d02f8 # r251339
git bisect bad 237c1ea8f68a7cc3100b63ee50da05c9e0b0ea6d # r253033
git bisect bad 1f0c90bb95ae0d59c93a97dc12294425831c5080 # r251838
git bisect good bc3e9c9df58c165b0157aabf69b222130c835a63 # r251559
git bisect bad 1694a564a16d2403ba1d80778eaacd49b1a62b2c # r251723
git bisect good 9e9e5c15ab8377f3fedc0dd571a0e29810c8c349 # r251637
git bisect good 0d58671cf9b85d18b3a4d2ec785dd95b6bd604db # r251681
git bisect good 404455fef970eea7f65545ed7ed87501ef925718 # r251700
git bisect good 3daf52f78423515253c156cf5adc94d5e6b00994 # r251711
git bisect bad b0e3c082a4b51073d516d7e308e3720c482019ef # r251717
git bisect bad d29e4e8c5dad17dc1f22c5acf950b13820c7876f # r251714
git bisect bad ef6533727511b05fd7e4c7325bf822f4fc1ae4d8 # r251713
first bad commit: [ef6533727511b05fd7e4c7325bf822f4fc1ae4d8] Improve alloca
alignment
ef6533727511b05fd7e4c7325bf822f4fc1ae4d8 is the first bad commit
commit ef6533727511b05fd7e4c7325bf822f4fc1ae4d8
Author: wilco <wilco@138bc75d-0d04-0410-961f-82ee72b054a4>
https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=251713
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Thu, 25 Oct 2018 14:19:00 -0000
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--- Comment #13 from Douglas Mencken <dougmencken at gmail dot com> ---
Current repo which HEAD is
commit b75be89021ca1da066f892d9a26329009432654c
Author: meissner <meissner@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed Oct 24 20:16:31 2018 +0000
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@265471
138bc75d-0d04-0410-961f-82ee72b054a4
r265471 https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=265471
fails the same way
build/gencfn-macros.o build/errors.o build/hash-table.o build/vec.o
build/ggc-none.o build/sort.o
../../host-powerpc-unknown-darwin/libiberty/libiberty.a
build/gencfn-macros -c \
> tmp-case-cfn-macros.h
build/gencfn-macros: DEF_INTERNAL_FLT_FN (ACOS) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (ASIN) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (ATAN) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (COS) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (EXP) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (EXP10) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (EXP2) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (EXPM1) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (LOG) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (LOG10) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (LOG1P) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (LOG2) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (LOGB) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (SIN) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (SQRT) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (TAN) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (CEIL) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (FLOOR) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (RINT) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (ROUND) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (TRUNC) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (ATAN2) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (FMOD) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (POW) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (SCALB) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (FMIN) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (FMAX) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (LDEXP) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_FLT_FN (FMA) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_INT_FN (CLRSB) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_INT_FN (CLZ) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_INT_FN (CTZ) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_INT_FN (FFS) has no associated built-in
functions
build/gencfn-macros: DEF_INTERNAL_INT_FN (PARITY) has no associated built-in
functions
make[3]: *** [s-case-cfn-macros] Error 1
make[2]: *** [all-stage2-gcc] Error 2
make[1]: *** [stage2-bubble] Error 2
make: *** [all] Error 2
>From gcc-bugs-return-618807-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 14:36:02 2018
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Subject: [Bug testsuite/86158] [9 regression] gcc.c-torture/unsorted/dump-noaddr.c.*i.lto-stream-out fails starting with 261546
Date: Thu, 25 Oct 2018 14:36:00 -0000
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--- Comment #10 from seurer at gcc dot gnu.org ---
For a while the test case stopped failing (I don't know why but from the
results logs it was about 25 June this year around r262009) but just recently
it started again (sometime around r264987 on 6 October).
>From gcc-bugs-return-618808-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 14:40:48 2018
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Subject: [Bug testsuite/86158] [9 regression] gcc.c-torture/unsorted/dump-noaddr.c.*i.lto-stream-out fails starting with 261546
Date: Thu, 25 Oct 2018 14:40:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |marxin at gcc dot gnu.org
--- Comment #11 from Martin Liška <marxin at gcc dot gnu.org> ---
I have a working patch for it.
>From gcc-bugs-return-618809-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 14:47:13 2018
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From: "arthur.j.odwyer at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/87106] Group move and destruction of the source, where possible, for speed
Date: Thu, 25 Oct 2018 14:47:00 -0000
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Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> changed:
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CC| |arthur.j.odwyer at gmail dot com
--- Comment #4 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> ---
Hi, I'm the author of P1144 "Object relocation in terms of move plus destroy".
Awesome work you've done here!
Have you seen my libc++ patch on the same topic as yours?
https://quuxplusone.github.io/blog/2018/07/18/announcing-trivially-relocatable/
https://github.com/Quuxplusone/libcxx/tree/trivially-relocatable/include
Specifically, the piece that I think is still missing from libstdc++'s
implementation (besides all the cool stuff that you'd get from the attribute)
is the trait `__has_trivial_construct<A, T, T&&>`. This trait allows you to
write your `__relocate_a_1` generically, instead of special-casing it for
`std::allocator<T>` in particular. (So for example it could also get picked up
for `std::pmr::polymorphic_allocator<T>`... even though I guess I didn't
implement that part for my libc++ patch, because I'm still waiting on
<memory_resource> to get merged.)
Here's my `__has_trivial_construct`:
https://github.com/Quuxplusone/libcxx/blob/99d734b4/include/memory#L5790-L5800
And here's how std::vector uses it (which is significantly different from how
libstdc++'s std::vector is arranged, but I'm sure the trait would be the same):
https://github.com/Quuxplusone/libcxx/blob/99d734b4/include/vector#L587-L600
I hope we get P1144 so that you don't have to waste time and brain cells
specializing `__is_trivially_relocatable<T>` for std::string and std::pair and
so on.
Complete tangent: I'm confused how vector.tcc is allowed to use "if constexpr"
in C++11 mode.
https://github.com/gcc-mirror/gcc/commit/e9f84d4c#diff-05b068171cedf9d0176bada75d7dd112R76
>From gcc-bugs-return-618810-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 14:49:03 2018
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Subject: [Bug fortran/86907] [9 Regression] bogus warning "No location in expression near"
Date: Thu, 25 Oct 2018 14:49:00 -0000
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--- Comment #6 from Jürgen Reuter <juergen.reuter at desy dot de> ---
Indeed, with --enable-checking=release on MACOSX and default option (which is
--enable-checking=yes) if I understand it correctly, the warning seems not to
be present. I didn't test --enable-checking=yes on MACOSX but I believe this
could be closed as WORKSFORME.
>From gcc-bugs-return-618811-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 15:25:49 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Thu, 25 Oct 2018 15:25:00 -0000
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--- Comment #14 from Wilco <wilco at gcc dot gnu.org> ---
Since DEFAULT_ABI == ABI_DARWIN, the save area is 24 bytes:
#define RS6000_SAVE_AREA \
((DEFAULT_ABI == ABI_V4 ? 8 : DEFAULT_ABI == ABI_ELFv2 ? 16 : 24) \
<< (TARGET_64BIT ? 1 : 0))
STACK_BOUNDARY is 128 bit (due to TARGET_ALTIVEC_ABI == 1 on darwin):
#define STACK_BOUNDARY \
((TARGET_32BIT && !TARGET_ALTIVEC && !TARGET_ALTIVEC_ABI && !TARGET_VSX) \
? 64 : 128)
So here is the bug in darwin.h:
#undef STACK_DYNAMIC_OFFSET
#define STACK_DYNAMIC_OFFSET(FUNDECL) \
(RS6000_ALIGN (crtl->outgoing_args_size.to_constant (), 16) \
+ (STACK_POINTER_OFFSET))
This will correctly align the outgoing arguments to fails to align the outgoing
arguments. The STACK_DYNAMIC_OFFSET definitions in rs6000.h and aix.h are
correct.
>From gcc-bugs-return-618812-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 15:28:53 2018
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Subject: [Bug fortran/86907] [9 Regression] bogus warning "No location in expression near"
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Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
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--- Comment #7 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
The idea is to find pieces of code which (gfortran internally) do not have
information about where they are. If an error occurs which involves such a
piece of code, an ICE would occur.
This is mostly done to catch cases when a patch forgets to add this info - it
shiws uo on regression testing right away. This is also why this is disabled
with checking=release.
Maybe we should do something about the warning to make it clearer that this is
internal - suggestions welcome.
We should also find out where copying localization does not happen.
>From gcc-bugs-return-618813-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 15:32:46 2018
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Subject: [Bug target/87723] [9 Regression] ICE: output_operand: invalid %-code on s390x
Date: Thu, 25 Oct 2018 15:32:00 -0000
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Andreas Krebbel <krebbel at gcc dot gnu.org> changed:
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Status|UNCONFIRMED |ASSIGNED
Last reconfirmed|2018-10-24 00:00:00 |2018-10-25
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Ever confirmed|0 |1
>From gcc-bugs-return-618814-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 15:34:49 2018
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Subject: [Bug libstdc++/87749] [6/7/8/9 Regression] std::__cxx11::basic_string move assignment does deep copy unnecessarily
Date: Thu, 25 Oct 2018 15:34:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87749
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Oct 25 15:34:04 2018
New Revision: 265493
URL: https://gcc.gnu.org/viewcvs?rev=265493&root=gcc&view=rev
Log:
PR libstdc++/87749 fix (and optimize) string move construction
The move constructor for the SSO string uses assign(const basic_string&)
when either:
(1) the source string is "local" and so the contents of the small string
buffer need to be copied, or
(2) the allocator does not propagate and is_always_equal is false.
Case (1) is suboptimal, because the assign member is not noexcept and
the compiler isn't smart enough to see it won't actually throw in this
case. This causes extra code in the move assignment operator so that any
exception will be turned into a call to std::terminate. This can be
fixed by copying small strings inline instead of calling assign.
Case (2) is a bug, because the specific instances of the allocators
could be equal even if is_always_equal is false. This can result in an
unnecessary deep copy (and potentially-throwing allocation) when the
storage should be moved. This can be fixed by simply checking if the
allocators are equal.
PR libstdc++/87749
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
(basic_string::operator=(basic_string&&)): For short strings copy the
buffer inline. Only fall back to using assign(const basic_string&) to
do a deep copy when reallocation is needed.
* testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc:
New test.
* testsuite/21_strings/basic_string/modifiers/assign/char/
move_assign_optim.cc: New test.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc:
New test.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
move_assign_optim.cc: New test.
Added:
trunk/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc
trunk/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/move_assign_optim.cc
trunk/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc
trunk/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign_optim.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/basic_string.h
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From: "wilco at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Thu, 25 Oct 2018 15:34:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85669
--- Comment #15 from Wilco <wilco at gcc dot gnu.org> ---
> This will correctly align the outgoing arguments to fails to align the
> outgoing arguments. The STACK_DYNAMIC_OFFSET definitions in rs6000.h and
> aix.h are correct.
Note RS6000_STARTING_FRAME_OFFSET also needs to be updated, again the
definition in aix.h is correct.
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Subject: [Bug other/87735] [9 regression] gcc.dg/tree-prof/time-profiler-1.c and -2.c and -3.c fail starting with r265454
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87735
--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Thu Oct 25 15:36:12 2018
New Revision: 265494
URL: https://gcc.gnu.org/viewcvs?rev=265494&root=gcc&view=rev
Log:
Revert partially changes from r265454 (PR other/87735).
2018-10-25 Martin Liska <mliska@suse.cz>
PR other/87735
* gcc.dg/tree-prof/time-profiler-1.c: Revert.
* gcc.dg/tree-prof/time-profiler-2.c: Likewise.
* gcc.dg/tree-prof/time-profiler-3.c: Likewise.
2018-10-25 Martin Liska <mliska@suse.cz>
PR other/87735
* libgcov-profiler.c: Revert.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-prof/time-profiler-1.c
trunk/gcc/testsuite/gcc.dg/tree-prof/time-profiler-2.c
trunk/gcc/testsuite/gcc.dg/tree-prof/time-profiler-3.c
trunk/libgcc/ChangeLog
trunk/libgcc/libgcov-profiler.c
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Subject: [Bug other/87735] [9 regression] gcc.dg/tree-prof/time-profiler-1.c and -2.c and -3.c fail starting with r265454
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug testsuite/87739] new test case gcc.dg/tree-ssa/pr84436-5.c fails with its introduction in r265463
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug testsuite/87739] new test case gcc.dg/tree-ssa/pr84436-5.c fails with its introduction in r265463
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--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Thu Oct 25 15:36:48 2018
New Revision: 265495
URL: https://gcc.gnu.org/viewcvs?rev=265495&root=gcc&view=rev
Log:
Use signed char in a test (PR testsuite/87739).
2018-10-25 Martin Liska <mliska@suse.cz>
PR testsuite/87739
* gcc.dg/tree-ssa/pr84436-5.c (foo): Use signed char.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr84436-5.c
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Subject: [Bug target/87723] [9 Regression] ICE: output_operand: invalid %-code on s390x
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--- Comment #1 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
Created attachment 44898
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44898&action=edit
Patch
The "*r<noxa>sbg_di_rotl" output string uses mode attributes with actually
using a mode iterator.
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Subject: [Bug target/87723] [9 Regression] ICE: output_operand: invalid %-code on s390x
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--- Comment #2 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
(In reply to Andreas Krebbel from comment #1)
> Created attachment 44898 [details]
> Patch
>
> The "*r<noxa>sbg_di_rotl" output string uses mode attributes with actually
> using a mode iterator.
s/with/without/
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Subject: [Bug c++/87750] New: Failed compilation / parsing of template member call after 'using' declaration
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87750
Bug ID: 87750
Summary: Failed compilation / parsing of template member call
after 'using' declaration
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mark.atkinson99 at gmail dot com
Target Milestone: ---
Problem code: https://godbolt.org/z/3IpLz1
This is a cut down sample of real code that no longer compiles in gcc 8.x.
On godbolt the sample does not compile under 8.1, 8.2 & current trunk, but
works in previous gcc.
The first call marked (1) compiles in gcc <= 7.x, clang, msvc & icc.
The call marked (2) is accepted by gcc 5.x to 7.x and clang 7 but not clang 5 &
6.
I can work around it, but can you advise root cause.
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/87749] [6/7/8/9 Regression] std::__cxx11::basic_string move assignment does deep copy unnecessarily
Date: Thu, 25 Oct 2018 16:22:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87749
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Oct 25 16:21:19 2018
New Revision: 265496
URL: https://gcc.gnu.org/viewcvs?rev=265496&root=gcc&view=rev
Log:
PR libstdc++/87749 fix (and optimize) string move construction
The move constructor for the SSO string uses assign(const basic_string&)
when either:
(1) the source string is "local" and so the contents of the small string
buffer need to be copied, or
(2) the allocator does not propagate and is_always_equal is false.
Case (1) is suboptimal, because the assign member is not noexcept and
the compiler isn't smart enough to see it won't actually throw in this
case. This causes extra code in the move assignment operator so that any
exception will be turned into a call to std::terminate. This can be
fixed by copying small strings inline instead of calling assign.
Case (2) is a bug, because the specific instances of the allocators
could be equal even if is_always_equal is false. This can result in an
unnecessary deep copy (and potentially-throwing allocation) when the
storage should be moved. This can be fixed by simply checking if the
allocators are equal.
PR libstdc++/87749
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
(basic_string::operator=(basic_string&&)): For short strings copy the
buffer inline. Only fall back to using assign(const basic_string&) to
do a deep copy when reallocation is needed.
* testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc:
New test.
* testsuite/21_strings/basic_string/modifiers/assign/char/
move_assign_optim.cc: New test.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc:
New test.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
move_assign_optim.cc: New test.
Added:
branches/gcc-8-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc
branches/gcc-8-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/move_assign_optim.cc
branches/gcc-8-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc
branches/gcc-8-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign_optim.cc
Modified:
branches/gcc-8-branch/libstdc++-v3/ChangeLog
branches/gcc-8-branch/libstdc++-v3/include/bits/basic_string.h
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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/87749] [6/7/8/9 Regression] std::__cxx11::basic_string move assignment does deep copy unnecessarily
Date: Thu, 25 Oct 2018 16:33:00 -0000
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--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Oct 25 16:32:47 2018
New Revision: 265497
URL: https://gcc.gnu.org/viewcvs?rev=265497&root=gcc&view=rev
Log:
PR libstdc++/87749 fix (and optimize) string move construction
The move constructor for the SSO string uses assign(const basic_string&)
when either:
(1) the source string is "local" and so the contents of the small string
buffer need to be copied, or
(2) the allocator does not propagate and is_always_equal is false.
Case (1) is suboptimal, because the assign member is not noexcept and
the compiler isn't smart enough to see it won't actually throw in this
case. This causes extra code in the move assignment operator so that any
exception will be turned into a call to std::terminate. This can be
fixed by copying small strings inline instead of calling assign.
Case (2) is a bug, because the specific instances of the allocators
could be equal even if is_always_equal is false. This can result in an
unnecessary deep copy (and potentially-throwing allocation) when the
storage should be moved. This can be fixed by simply checking if the
allocators are equal.
PR libstdc++/87749
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
(basic_string::operator=(basic_string&&)): For short strings copy the
buffer inline. Only fall back to using assign(const basic_string&) to
do a deep copy when reallocation is needed.
* testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc:
New test.
* testsuite/21_strings/basic_string/modifiers/assign/char/
move_assign_optim.cc: New test.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc:
New test.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
move_assign_optim.cc: New test.
Added:
branches/gcc-7-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc
branches/gcc-7-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/move_assign_optim.cc
branches/gcc-7-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc
branches/gcc-7-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign_optim.cc
Modified:
branches/gcc-7-branch/libstdc++-v3/ChangeLog
branches/gcc-7-branch/libstdc++-v3/include/bits/basic_string.h
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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/87106] Group move and destruction of the source, where possible, for speed
Date: Thu, 25 Oct 2018 16:37:00 -0000
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--- Comment #5 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Arthur O'Dwyer from comment #4)
> Have you seen my libc++ patch on the same topic as yours?
>
> https://quuxplusone.github.io/blog/2018/07/18/announcing-trivially-
> relocatable/
> https://github.com/Quuxplusone/libcxx/tree/trivially-relocatable/include
I am not sure I should look too closely for copyright reasons. Maybe I can... I
did read the papers though.
> Specifically, the piece that I think is still missing from libstdc++'s
> implementation (besides all the cool stuff that you'd get from the
> attribute) is the trait `__has_trivial_construct<A, T, T&&>`.
I already filed Bug 87604 for that.
> This trait
> allows you to write your `__relocate_a_1` generically, instead of
> special-casing it for `std::allocator<T>` in particular. (So for example it
> could also get picked up for `std::pmr::polymorphic_allocator<T>`...
I am not particularly interested in polymorphic_allocator. The patch is still
missing more important pieces, like the ability to actually specialize
__is_trivially_relocatable (I already have another patch locally with the
missing piece).
> I hope we get P1144 so that you don't have to waste time and brain cells
> specializing `__is_trivially_relocatable<T>` for std::string and std::pair
> and so on.
std::string is not trivially relocatable in libstdc++, so I won't waste any
time there. IIRC, one difference with what you did is that I use relocation
even for some types that are not trivially relocatable (in particular
std::string), because it actually helps, as shown in the first message of this
bug report.
> Complete tangent: I'm confused how vector.tcc is allowed to use "if
> constexpr" in C++11 mode.
> https://github.com/gcc-mirror/gcc/commit/e9f84d4c#diff-
> 05b068171cedf9d0176bada75d7dd112R76
It is enabled as an extension and produces a warning which is disabled in
system headers.
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Subject: [Bug fortran/71196] f951: internal compiler error: in gfc_conv_string_init, at fortran/trans-const.c:149
Date: Thu, 25 Oct 2018 16:37:00 -0000
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G. Steinmetz <gscfq@t-online.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gscfq@t-online.de
--- Comment #4 from G. Steinmetz <gscfq@t-online.de> ---
Update :
$ cat z1.f90
program p
type t
integer :: i
character(3) :: c
end type
type t2
type(t) :: a
end type
type(t2) :: x
data x%a%i / 1 /
data x%a%c / 'abc' /
print *, x
end
$ gfortran-9-20181021 -c z1.f90
z1.f90:1:0:
1 | program p
|
internal compiler error: in gfc_conv_string_init, at fortran/trans-const.c:148
0x6d888b gfc_conv_string_init(tree_node*, gfc_expr*)
../../gcc/fortran/trans-const.c:148
0x6fca5f gfc_conv_initializer(gfc_expr*, gfc_typespec*, tree_node*, bool, bool,
bool)
../../gcc/fortran/trans-expr.c:7034
0x6ec173 gfc_conv_structure(gfc_se*, gfc_expr*, int)
../../gcc/fortran/trans-expr.c:7894
0x6fca91 gfc_conv_initializer(gfc_expr*, gfc_typespec*, tree_node*, bool, bool,
bool)
../../gcc/fortran/trans-expr.c:7027
0x6ec173 gfc_conv_structure(gfc_se*, gfc_expr*, int)
../../gcc/fortran/trans-expr.c:7894
0x6fca91 gfc_conv_initializer(gfc_expr*, gfc_typespec*, tree_node*, bool, bool,
bool)
../../gcc/fortran/trans-expr.c:7027
0x6e1647 gfc_get_symbol_decl(gfc_symbol*)
../../gcc/fortran/trans-decl.c:1824
0x6e3ec7 generate_local_decl
../../gcc/fortran/trans-decl.c:5596
0x6a80f2 do_traverse_symtree
../../gcc/fortran/symbol.c:4151
0x6e4fe4 generate_local_vars
../../gcc/fortran/trans-decl.c:5796
0x6e4fe4 gfc_generate_function_code(gfc_namespace*)
../../gcc/fortran/trans-decl.c:6440
0x673426 translate_all_program_units
../../gcc/fortran/parse.c:6125
0x673426 gfc_parse_file()
../../gcc/fortran/parse.c:6328
0x6ba3ff gfc_be_parse_file
../../gcc/fortran/f95-lang.c:204
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Subject: [Bug fortran/71196] f951: internal compiler error: in gfc_conv_string_init, at fortran/trans-const.c:149
Date: Thu, 25 Oct 2018 16:39:00 -0000
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--- Comment #5 from G. Steinmetz <gscfq@t-online.de> ---
Looking at variations z1..z4 with two data statements
and combinations z5..z8 with one data statement only :
# cat z1.f90
# ICE, see comment above
$ cat z2.f90
program p
type t
character(3) :: c
integer :: i
end type
type t2
type(t) :: a
end type
type(t2) :: x
data x%a%i / 1 /
data x%a%c / 'abc' /
print *, x
end
$ gfortran-9-20181021 -static-libgfortran z2.f90
$ a.out
abc 1
$ cat z3.f90
program p
type t
integer :: i
character(3) :: c
end type
type t2
type(t) :: a
end type
type(t2) :: x
data x%a%c / 'abc' /
data x%a%i / 1 /
print *, x
end
$ gfortran-9-20181021 -static-libgfortran z3.f90
$ a.out
1 abc
$ cat z4.f90
program p
type t
character(3) :: c
integer :: i
end type
type t2
type(t) :: a
end type
type(t2) :: x
data x%a%c / 'abc' /
data x%a%i / 1 /
print *, x
end
# ICE, see comment above
$ cat z5.f90
program p
type t
integer :: i
character(3) :: c
end type
type t2
type(t) :: a
end type
type(t2) :: x
data x%a%i / 1 /
print *, x
end
$ gfortran-9-20181021 -static-libgfortran z5.f90
$ a.out
1
$ cat z6.f90
program p
type t
integer :: i
character(3) :: c
end type
type t2
type(t) :: a
end type
type(t2) :: x
data x%a%c / 'abc' /
print *, x
end
# ICE when configured with --enable-checking=yes
$ gfortran-9-20181021-chk -c z6.f90
z6.f90:12:0:
12 | end
|
internal compiler error: in output_constant, at varasm.c:4986
0xf8f91c output_constant
../../gcc/varasm.c:4986
0xf90f2d output_constant
../../gcc/varasm.c:5219
0xf90f2d output_constructor_regular_field
../../gcc/varasm.c:5219
0xf90f2d output_constructor
../../gcc/varasm.c:5490
0xf90f2d output_constant
../../gcc/varasm.c:5219
0xf90f2d output_constructor_regular_field
../../gcc/varasm.c:5219
0xf90f2d output_constructor
../../gcc/varasm.c:5490
0xf920c9 output_constant
../../gcc/varasm.c:4858
0xf920c9 assemble_variable_contents
../../gcc/varasm.c:2140
0xf9b12a assemble_variable(tree_node*, int, int, int)
../../gcc/varasm.c:2319
0xf9f414 varpool_node::assemble_decl()
../../gcc/varpool.c:586
0x828fdc output_in_order
../../gcc/cgraphunit.c:2442
0x828fdc symbol_table::compile()
../../gcc/cgraphunit.c:2682
0x82b9c6 symbol_table::compile()
../../gcc/cgraphunit.c:2864
0x82b9c6 symbol_table::finalize_compilation_unit()
../../gcc/cgraphunit.c:2861
$ cat z7.f90
program p
type t
character(3) :: c
integer :: i
end type
type t2
type(t) :: a
end type
type(t2) :: x
data x%a%c / 'abc' /
print *, x
end
$ gfortran-9-20181021 -static-libgfortran z7.f90
$ a.out
abc 0
$ cat z8.f90
program p
type t
character(3) :: c
integer :: i
end type
type t2
type(t) :: a
end type
type(t2) :: x
data x%a%i / 1 /
print *, x
end
# ICE, see comment above
>From gcc-bugs-return-618828-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 16:42:31 2018
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Subject: [Bug libstdc++/87704] [6/7/8/9 Regression] unique_ptr<T>(nullptr_t) requires T to be complete
Date: Thu, 25 Oct 2018 16:42:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87704
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Oct 25 16:41:54 2018
New Revision: 265499
URL: https://gcc.gnu.org/viewcvs?rev=265499&root=gcc&view=rev
Log:
PR libstdc++/87704 fix unique_ptr(nullptr_t) constructors
Using a delegating constructor to implement these constructors means
that they instantiate the destructor, which requires the element_type to
be complete. In C++11 and C++14 they were specified to be delegating,
but that was changed as part of LWG 2801 so in C++17 they don't require
a complete type (as was intended all along).
Backport from mainline
2018-10-23 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/87704
* include/bits/unique_ptr.h (unique_ptr::unique_ptr(nullptr_t)): Do
not delegate to default constructor.
(unique_ptr<T[], D>::unique_ptr(nullptr_t)): Likewise.
* testsuite/20_util/unique_ptr/cons/incomplete.cc: New test.
Added:
branches/gcc-6-branch/libstdc++-v3/testsuite/20_util/unique_ptr/cons/incomplete.cc
Modified:
branches/gcc-6-branch/libstdc++-v3/ChangeLog
branches/gcc-6-branch/libstdc++-v3/include/bits/unique_ptr.h
branches/gcc-6-branch/libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635_neg.cc
branches/gcc-6-branch/libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc
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Subject: [Bug libstdc++/87749] [6/7/8/9 Regression] std::__cxx11::basic_string move assignment does deep copy unnecessarily
Date: Thu, 25 Oct 2018 16:42:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87749
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Oct 25 16:42:01 2018
New Revision: 265500
URL: https://gcc.gnu.org/viewcvs?rev=265500&root=gcc&view=rev
Log:
PR libstdc++/87749 fix (and optimize) string move construction
The move constructor for the SSO string uses assign(const basic_string&)
when either:
(1) the source string is "local" and so the contents of the small string
buffer need to be copied, or
(2) the allocator does not propagate and is_always_equal is false.
Case (1) is suboptimal, because the assign member is not noexcept and
the compiler isn't smart enough to see it won't actually throw in this
case. This causes extra code in the move assignment operator so that any
exception will be turned into a call to std::terminate. This can be
fixed by copying small strings inline instead of calling assign.
Case (2) is a bug, because the specific instances of the allocators
could be equal even if is_always_equal is false. This can result in an
unnecessary deep copy (and potentially-throwing allocation) when the
storage should be moved. This can be fixed by simply checking if the
allocators are equal.
PR libstdc++/87749
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
(basic_string::operator=(basic_string&&)): For short strings copy the
buffer inline. Only fall back to using assign(const basic_string&) to
do a deep copy when reallocation is needed.
* testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc:
New test.
* testsuite/21_strings/basic_string/modifiers/assign/char/
move_assign_optim.cc: New test.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc:
New test.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
move_assign_optim.cc: New test.
Added:
branches/gcc-6-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc
branches/gcc-6-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/move_assign_optim.cc
branches/gcc-6-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc
branches/gcc-6-branch/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign_optim.cc
Modified:
branches/gcc-6-branch/libstdc++-v3/ChangeLog
branches/gcc-6-branch/libstdc++-v3/include/bits/basic_string.h
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Subject: [Bug fortran/87751] New: ICE in gfc_trans_assignment_1, at fortran/trans-expr.c:10255
Date: Thu, 25 Oct 2018 16:43:00 -0000
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Bug ID: 87751
Summary: ICE in gfc_trans_assignment_1, at
fortran/trans-expr.c:10255
Product: gcc
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Down to version 5 at least, with an invalid function reference
and together with option -fcheck=all or -fcheck=mem :
$ cat z1.f90
program p
interface
function f() result(z)
integer, allocatable :: z(:)
end
end interface
procedure(f), pointer :: g => null()
g = 1
end
$ gfortran-9-20181021 -c z1.f90
$
$ gfortran-9-20181021 -c z1.f90 -fcheck=all
z1.f90:8:0:
8 | g = 1
|
internal compiler error: in gfc_trans_assignment_1, at
fortran/trans-expr.c:10255
0x6fc273 gfc_trans_assignment_1
../../gcc/fortran/trans-expr.c:10254
0x6bd90f trans_code
../../gcc/fortran/trans.c:1822
0x6e51c4 gfc_generate_function_code(gfc_namespace*)
../../gcc/fortran/trans-decl.c:6505
0x673426 translate_all_program_units
../../gcc/fortran/parse.c:6125
0x673426 gfc_parse_file()
../../gcc/fortran/parse.c:6328
0x6ba3ff gfc_be_parse_file
../../gcc/fortran/f95-lang.c:204
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Subject: [Bug libstdc++/87749] [6/7/8/9 Regression] std::__cxx11::basic_string move assignment does deep copy unnecessarily
Date: Thu, 25 Oct 2018 16:47:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for 6.5, 7.4, 8.3 and 9
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Subject: [Bug fortran/87752] New: ICE in omp_add_variable, at gimplify.c:6776
Date: Thu, 25 Oct 2018 16:47:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87752
Bug ID: 87752
Summary: ICE in omp_add_variable, at gimplify.c:6776
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
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Affects versions down to at least version 5 :
$ cat z1.f90
subroutine foo (n, u, v)
integer :: n
real, pointer :: u(:), v(:)
!$omp parallel do simd
do i = 1, n
u(:) = v(:)
end do
end
$ gfortran -9-20181021 -c z1.f90 -fopenmp -O3
$ gfortran -9-20181021 -c z1.f90 -fopenmp -Ofast
z1.f90:6:0:
6 | u(:) = v(:)
|
internal compiler error: Segmentation fault
0xb1c86f crash_signal
../../gcc/toplev.c:325
0x8f6510 omp_add_variable
../../gcc/gimplify.c:6776
0x8fd2ad gimplify_bind_expr
../../gcc/gimplify.c:1300
0x8fa41a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.c:11805
0x8fc208 gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.c:6614
0x8f96eb gimplify_statement_list
../../gcc/gimplify.c:1763
0x8f96eb gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.c:12033
0x8fc208 gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.c:6614
0x907d2b gimplify_and_add(tree_node*, gimple**)
../../gcc/gimplify.c:441
0x907d2b gimplify_and_return_first
../../gcc/gimplify.c:453
0x907d2b gimplify_omp_for
../../gcc/gimplify.c:10400
0x8f940a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.c:12091
0x8fc208 gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.c:6614
0x8fcb61 gimplify_bind_expr
../../gcc/gimplify.c:1331
0x8fa41a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.c:11805
0x8fc208 gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.c:6614
0x907d2b gimplify_and_add(tree_node*, gimple**)
../../gcc/gimplify.c:441
0x907d2b gimplify_and_return_first
../../gcc/gimplify.c:453
0x907d2b gimplify_omp_for
../../gcc/gimplify.c:10400
0x8f940a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.c:12091
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Subject: [Bug libstdc++/87704] [6/7/8/9 Regression] unique_ptr<T>(nullptr_t) requires T to be complete
Date: Thu, 25 Oct 2018 16:47:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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Resolution|--- |FIXED
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--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for 6.5, 7.4, 8.3 and 9
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Subject: [Bug fortran/87752] ICE in omp_add_variable, at gimplify.c:6776
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--- Comment #1 from G. Steinmetz <gscfq@t-online.de> ---
Compiles without "simd" :
$ cat z2.f90
subroutine foo (n, u, v)
integer :: n
real, pointer :: u(:), v(:)
!$omp parallel do
do i = 1, n
u(:) = v(:)
end do
end
$ gfortran -9-20181021 -c z2.f90 -fopenmp -O3
$ gfortran -9-20181021 -c z2.f90 -fopenmp -Ofast
>From gcc-bugs-return-618835-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 17:25:32 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Thu, 25 Oct 2018 17:25:00 -0000
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--- Comment #16 from Douglas Mencken <dougmencken at gmail dot com> ---
Like this?
--- a/gcc/config/rs6000/darwin.h
+++ b/gcc/config/rs6000/darwin.h
@@ -150,13 +150,12 @@
#undef RS6000_STARTING_FRAME_OFFSET
#define RS6000_STARTING_FRAME_OFFSET \
- (RS6000_ALIGN (crtl->outgoing_args_size, 16) \
- + RS6000_SAVE_AREA)
+ RS6000_ALIGN (crtl->outgoing_args_size + RS6000_SAVE_AREA, 16)
#undef STACK_DYNAMIC_OFFSET
#define STACK_DYNAMIC_OFFSET(FUNDECL) \
- (RS6000_ALIGN (crtl->outgoing_args_size.to_constant (), 16) \
- + (STACK_POINTER_OFFSET))
+ RS6000_ALIGN (crtl->outgoing_args_size.to_constant() \
+ + STACK_POINTER_OFFSET, 16)
/* Darwin uses a function call if everything needs to be saved/restored. */
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Subject: [Bug fortran/52994] [OOP] [F08] internal compiler error: in gfc_trans_assignment_1, at fortran/trans-expr.c:6881
Date: Thu, 25 Oct 2018 17:27:00 -0000
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G. Steinmetz <gscfq@t-online.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gscfq@t-online.de
--- Comment #12 from G. Steinmetz <gscfq@t-online.de> ---
FYI : On my environment it's not possible to produce an ICE with gcc-9
and several tested combinations of options / all tested configurations.
$ gfortran-9-20181021 -c pr52994.f90
pr52994.f90:43:29:
43 | a%left_halo(psi%arr) = -666
| 1
Error: Different types in pointer assignment at (1); attempted assignment of
REAL(4) to INTEGER(4)
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #17 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Douglas Mencken from comment #16)
> Like this?
>
> --- a/gcc/config/rs6000/darwin.h
> +++ b/gcc/config/rs6000/darwin.h
> @@ -150,13 +150,12 @@
>
> #undef RS6000_STARTING_FRAME_OFFSET
> #define RS6000_STARTING_FRAME_OFFSET \
> - (RS6000_ALIGN (crtl->outgoing_args_size, 16) \
> - + RS6000_SAVE_AREA)
> + RS6000_ALIGN (crtl->outgoing_args_size + RS6000_SAVE_AREA, 16)
>
> #undef STACK_DYNAMIC_OFFSET
> #define STACK_DYNAMIC_OFFSET(FUNDECL) \
> - (RS6000_ALIGN (crtl->outgoing_args_size.to_constant (), 16) \
> - + (STACK_POINTER_OFFSET))
> + RS6000_ALIGN (crtl->outgoing_args_size.to_constant() \
> + + STACK_POINTER_OFFSET, 16)
>
> /* Darwin uses a function call if everything needs to be saved/restored. */
Yes that should work.
>From gcc-bugs-return-618838-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 18:32:21 2018
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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/87106] Group move and destruction of the source, where possible, for speed
Date: Thu, 25 Oct 2018 18:32:00 -0000
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--- Comment #6 from Marc Glisse <glisse at gcc dot gnu.org> ---
Re-reading P1144R0 (those are not necessarily comments on the paper, just what
comes to mind for gcc):
1) yes, an automatic detection mechanism would be nice, and an attribute makes
sense.
2) the conditionally trivial stuff is not very convenient, it seems to involve
a lot of code duplication. People regularly suggest attributes of the form
[[trivially_relocatable(condition)]] which might reduce the noise but are
harder to specify.
3) there are indeed many places outside of vector that can benefit from
relocation. The compromises may not be the same though. For my use in vectors,
relocation was never worse, it performed the same moves and destructions as the
original. In other places, using relocation would replace a move-assignment
with a construction and a destruction, which could be worse, so we may want to
limit it to the trivially relocatable case.
4) I think it might be useful to be able to specify how to relocate an object
that is not trivially relocatable. Relocating a pair<A,B> where A is trivially
relocatable and B is not can still benefit from doing piecewise relocations so
it avoids A's super-costly move constructor. Ideally relocation would be a
constructor or something similarly magic and the compiler would auto-generate
it for aggregates, etc. But I am asking a bit much there...
By the way, thanks for keeping destructive moves alive :-)
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From: "hvandam at bnl dot gov" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/87753] New: READ statement with nested implied do broken with optimization
Date: Thu, 25 Oct 2018 18:40:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87753
Bug ID: 87753
Summary: READ statement with nested implied do broken with
optimization
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: hvandam at bnl dot gov
Target Milestone: ---
Created attachment 44899
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44899&action=edit
The test program demonstrating the problem
I have code snippet that uses an implied do loop when reading some data from a
file. Dependent on the level of optimization the code either reads the data
correctly or does not seem to read any data at all. Compiling with the -Wall
and -Wextra flags it seems that some of the variables in the implied do loop
are mistaken for functions if the optimization is turned on.
The code is (file "test.F"):
program test
implicit none
integer, parameter :: mxj = 3
integer :: numj = mxj
integer :: numi(mxj) = (/5,3,1/)
integer :: anum(5,mxj)
integer :: ii, jj
anum=0
open(unit=10,file="input.dat",status="old")
read(10,*)((anum(ii,jj),ii=1,numi(jj)),jj=1,numj)
do ii=1,maxval(numi)
write(*,*)(anum(ii,jj),jj=1,numj)
enddo
close(10)
end
The data file "input.dat" contains:
11 12 13 14 15 21 22 23 31
Compiling the code and running it gives:
$ gfortran -Wall -Wextra test.F
$ ./a.out
11 21 31
12 22 0
13 23 0
14 0 0
15 0 0
$ gfortran -Wall -Wextra -O1 test.F
test.F:10:0:
read(10,*)((anum(ii,jj),ii=1,numi(jj)),jj=1,numj)
Warning: ‘jj’ is used uninitialized in this function [-Wuninitialized]
$ ./a.out
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
The warning makes no sense because jj is neither uninitialized nor used in a
function. The resulting code is clearly broken. Higher optimization levels
generate the same wrong results (-O2 and -O3). Turning optimization off (with
-O0) produces the same correct result as specifying no optimization flags.
GFortran version (I tried locating 8.2.1 and 9.0 but could not find those on
any of the mirror sites):
$ gfortran --version
GNU Fortran (GCC) 8.2.0
Copyright (C) 2018 Free Software Foundation, Inc.
Operating system:
$ uname -a
Linux host 2.6.32-220.el6.x86_64 #1 SMP Sat Dec 10 17:04:11 CST 2011 x86_64
x86_64 x86_64 GNU/Linux
GCC configure line:
$ ./configure --prefix=/home/username --disable-multilib
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From: "hvandam at bnl dot gov" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/87753] READ statement with nested implied do broken with optimization
Date: Thu, 25 Oct 2018 18:42:00 -0000
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--- Comment #1 from Hubertus van Dam <hvandam at bnl dot gov> ---
Created attachment 44900
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44900&action=edit
The data file that the program reads
>From gcc-bugs-return-618842-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 18:55:35 2018
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From: "dominiq at lps dot ens.fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/86837] [8/9 Regression] Optimization breaks an unformatted read with implicit loop
Date: Thu, 25 Oct 2018 18:55:00 -0000
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hvandam at bnl dot gov
--- Comment #9 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
*** Bug 87753 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-618841-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 18:55:34 2018
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Subject: [Bug fortran/87753] READ statement with nested implied do broken with optimization
Date: Thu, 25 Oct 2018 18:55:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87753
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Duplicate of pr86837, fixed on trunk (9.0) by revision r263838 and in 8.2.1 by
r263844.
*** This bug has been marked as a duplicate of bug 86837 ***
>From gcc-bugs-return-618843-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 19:33:37 2018
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From: "ro at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug lto/87754] New: [9 regression] ICE in odr_types_equivalent_p, at ipa-devirt.c:1250
Date: Thu, 25 Oct 2018 19:33:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87754
Bug ID: 87754
Summary: [9 regression] ICE in odr_types_equivalent_p, at
ipa-devirt.c:1250
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: hubicka at gcc dot gnu.org, marxin at gcc dot gnu.org
Target Milestone: ---
Target: i386-pc-solaris2.11, sparc-sun-solaris2.11
Between 20181024 (r265465) and 20181025 (r265498), the following error occured
on Solaris 11/x86 and SPARC, both 32 and 64-bit:
+ERROR: couldn't compile regular expression pattern: quantifier operand invalid
+ERROR: tcl error sourcing
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/lto/lto.exp.
This was caused by throwing lto.exp off-balance. The underlying ICE is this:
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/lto/odr-1_0.C:3:8: warning:
type 'struct a' violates the C++ One Definition Rule [-Wodr]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/lto/odr-1_1.C:4:8: note: a
different type is defined in another translation unit
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/lto/odr-1_0.C:4:13: note: the
first difference of corresponding definitions is field 'ptr'
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/lto/odr-1_1.C:5:13: note: a
field of same name but different type is defined in another translation unit
lto1: internal compiler error: in odr_types_equivalent_p, at ipa-devirt.c:1250
0x71b7a7 odr_types_equivalent_p
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:1250
0x71b7a7 odr_types_equivalent_p
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:1242
0x71ccf3 odr_types_equivalent_p(tree_node*, tree_node*)
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:1648
0x71cd9b type_mismatch_p
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:1027
0x71d1cf warn_types_mismatch(tree_node*, tree_node*, unsigned int, unsigned
int)
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:1172
0x71c517 odr_types_equivalent_p
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:1559
0x71c517 odr_types_equivalent_p
0x71c517 odr_types_equivalent_p
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:1242
0x717dd3 add_type_duplicate
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:1855
0x717dd3 get_odr_type(tree_node*, bool)
/vol/gcc/src/hg/trunk/local/gcc/ipa-devirt.c:2035
0x3f6847 lto_read_decls
/vol/gcc/src/hg/trunk/local/gcc/lto/lto.c:1900
0x3f7f33 lto_file_finalize
/vol/gcc/src/hg/trunk/local/gcc/lto/lto.c:2134
0x3f7f33 lto_create_files_from_ids
/vol/gcc/src/hg/trunk/local/gcc/lto/lto.c:2144
0x3f7f33 lto_file_read
/vol/gcc/src/hg/trunk/local/gcc/lto/lto.c:2185
0x3f7f33 read_cgraph_and_symbols
/vol/gcc/src/hg/trunk/local/gcc/lto/lto.c:2865
0x3f7f33 lto_main()
/vol/gcc/src/hg/trunk/local/gcc/lto/lto.c:3401
And has obviously been caused by
changeset: 49043:8f8f242f9f43
user: hubicka@138bc75d-0d04-0410-961f-82ee72b054a4
date: Thu Oct 25 12:18:28 2018 +0000
files: gcc/ChangeLog gcc/ipa-devirt.c gcc/testsuite/ChangeLog
gcc/testsuite/g++.dg/lto/odr-1_0.C gcc/testsuite/g++.dg/lto/odr-1_1.C
description:
* ipa-devirt.c (odr_types_equivalent_p): Do not ICE if one of types
is anonymous.
* g++.dg/lto/odr-1_0.C: New test.
* g++.dg/lto/odr-1_1.C: New test.
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Subject: [Bug lto/87754] [9 regression] ICE in odr_types_equivalent_p, at ipa-devirt.c:1250
Date: Thu, 25 Oct 2018 19:34:00 -0000
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Rainer Orth <ro at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |9.0
>From gcc-bugs-return-618845-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 19:41:06 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Thu, 25 Oct 2018 19:41:00 -0000
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--- Comment #18 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Wilco from comment #17)
> Yes that should work.
Oops, but it doesn’t. I just tested it with patched 8.2. Same messages, same
breakage
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Subject: [Bug other/87755] New: [9 regression] ERROR: couldn't compile regular expression pattern: quantifier operand invalid
Date: Thu, 25 Oct 2018 19:42:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87755
Bug ID: 87755
Summary: [9 regression] ERROR: couldn't compile regular
expression pattern: quantifier operand invalid
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
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Target Milestone: ---
These errors started showing up in builds today somewhere in r265483 or r265484
ERROR: couldn't compile regular expression pattern: quantifier operand invalid
ERROR: tcl error sourcing
/home/gccbuild/gcc_trunk_anonsvn/gcc/gcc/testsuite/g++.dg/lto/lto.exp.
I am not sure exactly where they are coming out as the text is commingled with
other text. It happening on at least all the powerpc64 targets and x86 ones
too.
------------------------------------------------------------------------
r265484 | hubicka | 2018-10-25 07:18:28 -0500 (Thu, 25 Oct 2018) | 6 lines
* ipa-devirt.c (odr_types_equivalent_p): Do not ICE if one of types
is anonymous.
* g++.dg/lto/odr-1_0.C: New test.
* g++.dg/lto/odr-1_1.C: New test.
------------------------------------------------------------------------
r265483 | thopre01 | 2018-10-25 05:35:21 -0500 (Thu, 25 Oct 2018) | 18 lines
dg-cmp-results: display NA->FAIL & NA->UNRESOLVED by default
Currently, dg-cmp-results will not print anything for a test that was
not run before, even if it is a FAIL or UNRESOLVED now. This means that
when contributing a code change together with a testcase in the same
commit one must run dg-cmp-results twice: once to check for regression
on a full testsuite run and once against the new testcase with -v -v.
This also prevents using dg-cmp-results on sum files generated with
test_summary since these would not contain PASS.
This patch changes dg-cmp-results to print NA->FAIL and NA->UNRESOLVED
changes by default.
2018-10-25 Thomas Preud'homme <thomas.preudhomme@linaro.org>
contrib/
* dg-cmp-results.sh: Print NA-FAIL and NA->UNRESOLVED changes at
default verbosity.
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #19 from Douglas Mencken <dougmencken at gmail dot com> ---
I dunno are such warnings related or not
echo timestamp > s-gtype
ccache /Developer/GCC/7.3p/PowerPC/32bit/bin/g++ -std=gnu++98 -fno-PIE -c -g
-mdynamic-no-pic -DIN_GCC -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wno-format -Wmissing-format-attribute -Woverloaded-virtual
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
-DHAVE_CONFIG_H -I. -I. -I../../gcc-8.2.0/gcc -I../../gcc-8.2.0/gcc/.
-I../../gcc-8.2.0/gcc/../include -I../../gcc-8.2.0/gcc/../libcpp/include
-I/Volumes/LibreOffice/TheGCC/_build_8.2/./gmp
-I/Volumes/LibreOffice/TheGCC/gcc-8.2.0/gmp
-I/Volumes/LibreOffice/TheGCC/_build_8.2/./mpfr/src
-I/Volumes/LibreOffice/TheGCC/gcc-8.2.0/mpfr/src
-I/Volumes/LibreOffice/TheGCC/gcc-8.2.0/mpc/src
-I../../gcc-8.2.0/gcc/../libdecnumber -I../../gcc-8.2.0/gcc/../libdecnumber/dpd
-I../libdecnumber -I../../gcc-8.2.0/gcc/../libbacktrace
-I/Volumes/LibreOffice/TheGCC/_build_8.2/./isl/include
-I/Volumes/LibreOffice/TheGCC/gcc-8.2.0/isl/include -o explow.o -MT explow.o
-MMD -MP -MF ./.deps/explow.TPo ../../gcc-8.2.0/gcc/explow.c
../../gcc-8.2.0/gcc/explow.c: In function 'rtx_def* round_push(rtx)':
../../gcc-8.2.0/gcc/explow.c:989:248: warning: self-comparison always evaluates
to false [-Wtautological-compare]
if (!SUPPORTS_STACK_ALIGNMENT
~~~~~~~~~~~~~~~~~~~~~~~
^
../../gcc-8.2.0/gcc/explow.c: In function 'void emit_stack_restore(save_level,
rtx)':
../../gcc-8.2.0/gcc/explow.c:1104:247: warning: self-comparison always
evaluates to false [-Wtautological-compare]
if (SUPPORTS_STACK_ALIGNMENT)
~~~~~~~~~~~~~~~~~~~~~~~~
^
rm -rf libbackend.a
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Thu, 25 Oct 2018 20:05:00 -0000
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--- Comment #20 from Segher Boessenkool <segher at gcc dot gnu.org> ---
This is
#define SUPPORTS_STACK_ALIGNMENT (MAX_STACK_ALIGNMENT > STACK_BOUNDARY)
and
#define MAX_STACK_ALIGNMENT STACK_BOUNDARY
so that seems normal.
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Thu, 25 Oct 2018 20:31:00 -0000
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Wilco <wdijkstr at arm dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |wdijkstr at arm dot com
--- Comment #21 from Wilco <wdijkstr at arm dot com> ---
(In reply to Douglas Mencken from comment #18)
> (In reply to Wilco from comment #17)
>
> > Yes that should work.
>
> Oops, but it doesn’t. I just tested it with patched 8.2. Same messages, same
> breakage
That's odd. The stack pointer is definitely 16-byte aligned in all cases right?
Can you check gcc.dg/pr78468.c passes and attach the disassembly please?
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Subject: [Bug lto/87754] [9 regression] ICE in odr_types_equivalent_p, at ipa-devirt.c:1250
Date: Thu, 25 Oct 2018 20:57:00 -0000
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Rainer Orth <ro at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|i386-pc-solaris2.11, |i386-pc-solaris2.11,
|sparc-sun-solaris2.11 |sparc-sun-solaris2.11,
| |x86_64-pc-linux-gnu
--- Comment #1 from Rainer Orth <ro at gcc dot gnu.org> ---
I just checked: Linux/x86_64 is likewise affected.
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Thu, 25 Oct 2018 21:03:00 -0000
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--- Comment #22 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Wilco from comment #21)
> That's odd. The stack pointer is definitely 16-byte aligned in all cases
> right?
As I know, PowerPC has no special “stack pointerâ€, it is just one of general
purpose register, conventionally it is r1. Instruction like “stwu r3,-2(r1)â€
which are common for prologues easily bin any alignment.
> Can you check gcc.dg/pr78468.c passes and attach the disassembly
> please?
Using which compiler? xgcc from stage1? Is it buildable alone by itself?
>From gcc-bugs-return-618852-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 21:13:04 2018
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Subject: [Bug other/87755] [9 regression] ERROR: couldn't compile regular expression pattern: quantifier operand invalid
Date: Thu, 25 Oct 2018 21:13:00 -0000
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--- Comment #1 from seurer at gcc dot gnu.org ---
Note: This happens during a make check.
This may be more of the error output:
ERROR: tcl error sourcing
/home/seurer/gcc/gcc-test2/gcc/testsuite/g++.dg/lto/lto.exp.
ERROR: couldn't compile regular expression pattern: quantifier operand invalid
while executing
"regsub -all $pat $text "\n" text"
(procedure "lto_handle_diagnostics_for_file" line 28)
invoked from within
"lto_handle_diagnostics_for_file $testcase $src ${dg-messages} $text"
(procedure "lto_handle_diagnostics" line 15)
invoked from within
"lto_handle_diagnostics $comp_output"
(procedure "lto-link-and-maybe-run" line 47)
invoked from within
"lto-link-and-maybe-run "[lindex $obj_list 0]-[lindex $obj_list end]"
$obj_list $execname $filtered ${dg-extra-ld-options} $filtered"
(procedure "lto-execute" line 142)
invoked from within
"lto-execute $src $sid"
("foreach" body line 7)
invoked from within
"foreach src [lsort [find $srcdir/$subdir *_0.\[cC\]]] {
# If we're only testing specific files and this isn't one of them, skip it.
if ![runte..."
(file "/home/seurer/gcc/gcc-test2/gcc/testsuite/g++.dg/lto/lto.exp" line
51)
invoked from within
"source /home/seurer/gcc/gcc-test2/gcc/testsuite/g++.dg/lto/lto.exp"
("uplevel" body line 1)
invoked from within
"uplevel #0 source /home/seurer/gcc/gcc-test2/gcc/testsuite/g++.dg/lto/lto.exp"
invoked from within
"catch "uplevel #0 source $test_file_name""
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #23 from Douglas Mencken <dougmencken at gmail dot com> ---
Created attachment 44901
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44901&action=edit
fix_gcc8_build.patch
Reversion of r251713, updated for patching sources of 8.2 release
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #24 from Wilco <wdijkstr at arm dot com> ---
(In reply to Douglas Mencken from comment #22)
> (In reply to Wilco from comment #21)
>
> > That's odd. The stack pointer is definitely 16-byte aligned in all cases
> > right?
>
> As I know, PowerPC has no special “stack pointerâ€, it is just one of general
> purpose register, conventionally it is r1. Instruction like “stwu r3,-2(r1)â€
> which are common for prologues easily bin any alignment.
STACK_BOUNDARY is the minimum stack alignment. The optimizer relies on this
being correct. If the ABI or prologue doesn't guarantee the minimum alignment
then alloca will fail, so it's essential to set STACK_BOUNDARY correctly.
> > Can you check gcc.dg/pr78468.c passes and attach the disassembly
> > please?
>
> Using which compiler? xgcc from stage1? Is it buildable alone by itself?
Yes the stage1 compiler would be fine or alternatively use --disable-bootstrap
to get an installed compiler.
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #25 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Wilco from comment #24)
> Yes the stage1 compiler would be fine or alternatively use
> --disable-bootstrap to get an installed compiler.
I’m yet at libstdc++ of stage2 (which means that it succeeded the place of
failing) for 8.2 patched with the reversion I’ve just published. About four
hours and I’d get working 8.2
Or do you want to look at results with your r251713? Does it matter?
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #26 from Wilco <wdijkstr at arm dot com> ---
(In reply to Douglas Mencken from comment #25)
> (In reply to Wilco from comment #24)
>
> > Yes the stage1 compiler would be fine or alternatively use
> > --disable-bootstrap to get an installed compiler.
>
> I’m yet at libstdc++ of stage2 (which means that it succeeded the place of
> failing) for 8.2 patched with the reversion I’ve just published. About four
> hours and I’d get working 8.2
If that's the case then STACK_BOUNDARY is incorrect. So what is the actual
alignment on Darwin, 8-byte alignment? How are Altivec instructions handled
which do require 16-byte alignment?
> Or do you want to look at results with your r251713? Does it matter?
Either would be interesting - it would show what alignment the prologue really
uses and what code it generates for alloca.
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |iains at gcc dot gnu.org
--- Comment #27 from Segher Boessenkool <segher at gcc dot gnu.org> ---
The stack is always 16B-aligned on Darwin as far as I know. Cc:ing Iain, he
will know for sure (I cannot find the docs, &^%*&^$#*&%)
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #28 from Douglas Mencken <dougmencken at gmail dot com> ---
Created attachment 44902
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44902&action=edit
8.2patched-pr78468.s
Assembly produced by patched 8.2’s stage1 xgcc compiled using
prev-gcc/xgcc -B/Volumes/LibreOffice/TheGCC/_build_8.2/prev-gcc/ -O2
-fno-inline pr78468.c -save-temps
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Subject: [Bug fortran/52994] [OOP] [F08] internal compiler error: in gfc_trans_assignment_1, at fortran/trans-expr.c:6881
Date: Thu, 25 Oct 2018 22:32:00 -0000
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--- Comment #13 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> FYI : On my environment it's not possible to produce an ICE with gcc-9
> and several tested combinations of options / all tested configurations.
>
> $ gfortran-9-20181021 -c pr52994.f90
> pr52994.f90:43:29:
>
> 43 | a%left_halo(psi%arr) = -666
> | 1
> Error: Different types in pointer assignment at (1); attempted assignment
> of REAL(4) to INTEGER(4)
The change occurred between revisions r227742 (2015-09-14, ICE) and r228457
(2015-10-04, error), likely r228222 (pr40054, pr63921).
Note that I am surprised by the order of REAL(4) and INTEGER(4): AFAICT
a%left_halo(psi%arr) is real and -666 an integer, isn't it?
>From gcc-bugs-return-618860-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 22:34:06 2018
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Subject: [Bug c++/87709] c++17 class template argument deduction not working in a very specific case
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--- Comment #4 from Baruch Burstein <bmburstein at gmail dot com> ---
There is a pretty good (speculative) analysis of this issue here:
https://stackoverflow.com/a/52986284/331785
I am copying it to here for completeness, but credit for this goes to the
author of that post:
There are two kinds of expressions that look similar but have vastly different
meaning:
(type) + expr
(expr) + expr
The first is a C-style cast expression, that converts the unary expression +
expr to type, the second is a binary expression that performs addition.
To disambiguate an expression of form (something) + expr, GCC first assumes
that something is a type and does a tentative parse. If that succeeds, then the
whole expression is treated as a cast expression, otherwise, something is
reparsed as an expression.
Now here's where I think the bug resides: during the tentative parse, GCC
wrongly believes that class template argument deduction (CTAD) cannot appear,
so it issues an error when it appears. But in fact, even though the tentative
parse will definitely fail in this case, something may still be a valid
function-style cast expression, and thus the reparse might be successful.
For cat((lit('b')), lit('d')), lit('b') + lit('d'), and (lit('b')), GCC is
clever enough to see that they can't be C-style cast expression, so it does not
do the tentative parse. For (lit<char>('b')) + lit('d'), there's no CTAD in
lit<char>('b'), so it is fine as well.
Prove of the above analysis:
If + is changed to / (or most operators other than -, * or &), no error occurs,
because (something) / expr can't be a valid cast expression.
Similar ambiguity exists in sizeof(something) (could be sizeof(type) or
sizeof(expr)), and as expected, sizeof(lit(0)) triggers a similar error.
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #29 from Segher Boessenkool <segher at gcc dot gnu.org> ---
It aligns the stack to 16:
# r3 is size, at entry
addi r3,r3,18
...
rlwinm r3,r3,0,0,27
...
neg r3,r3
...
lwz r2,0(r1)
...
stwux r2,r1,r3
(the rlwinm is r3 &= ~15; )
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #30 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #27)
> The stack is always 16B-aligned on Darwin as far as I know. Cc:ing Iain, he
> will know for sure (I cannot find the docs, &^%*&^$#*&%)
I actually thought we'd been around this loop a couple of revs. ago (when there
was a change made to the headers, and it had been confirmed to be OK).
don't have a system booted at the moment .. and haven't (yet) had the details -
but here:
From "Mac_OS_X_ABI_Function_Calls.pdf"
m32 calling convention
Prologs and Epilogs
The called function is responsible for allocating its own stack frame, making
sure to preserve 16-byte alignment in the stack. This operation is accomplished
by a section of code called the prolog, which the compiler places before the
body of the subroutine. After the body of the subroutine, the compiler places
an epilog to restore the processor to the state it was prior to the subroutine
call.
m64 calling convention
Prologs and Epilogs
The called function is responsible for allocating its own stack frame, making
sure to preserve 16-byte alignment in the stack. This operation is accomplished
by a section of code called the prolog, which the compiler places before the
body of the subroutine. After the body of the subroutine, the compiler places
an epilog to restore the processor to the state it was prior to the subroutine
call.
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #31 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Douglas Mencken from comment #4)
> (In reply to Richard Biener from comment #3)
> > How did you configure?
>
> As always
>
> ../gcc-8.1.0/configure \
> --build=powerpc-unknown-darwin --host=powerpc-unknown-darwin
> --target=powerpc-unknown-darwin \
> --prefix=/Developer/GCC/8.1/PowerPC/32bit \
> --enable-languages=c,c++,objc,obj-c++ \
> --enable-shared --enable-static \
> --enable-checking=release \
> --enable-threads=posix --with-__thread --without-system-zlib \
> --disable-nls --disable-werror
* please could you use
--build=powerpc-apple-darwin9 --host=powerpc-apple-darwin9
--target=powerpc-apple-darwin9 (or leave these off - which will cause it to use
the current system version).
Some of the configury will choose values suitable for 10.0+ when there's no
version given, which isn't much tested.
There are also two places that explicitly mention 'apple' (I doubt they are
important here - and I have a patch to remove them, but for now...)
* I'm not sure what --with-__thread is going to do here.
* how about a build --enable-checking=yes[,rtf,tree] ? in case that shows
something useful?
hopefully, will find time to boot a system over the weekend.
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From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/87742] [7/8/9 Regression] false warning: array subscript 3 is above array bounds of 'const std::type_info* const [3]'
Date: Thu, 25 Oct 2018 23:20:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87742
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-25
CC| |msebor at gcc dot gnu.org
Summary|False warning "warning: |[7/8/9 Regression] false
|array subscript 3 is above |warning: array subscript 3
|array bounds of 'const |is above array bounds of
|std::type_info* const [3]' |'const std::type_info*
|" |const [3]'
Ever confirmed|0 |1
--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed. The warning first appeared in GCC 5.0, with r217260:
r217260 | rguenth | 2014-11-09 06:27:00 -0500 (Sun, 09 Nov 2014) | 12 lines
2014-11-09 Richard Biener <rguenther@suse.de>
* match.pd: Add patterns convering two conversions in a row
from fold-const.c.
* fold-const.c (fold_unary_loc): Remove them here.
* tree-ssa-forwprop.c (combine_conversions): Likewise.
* genmatch.c (dt_node::gen_kids): Check whether we may
follow SSA use-def chains.
* g++.dg/cpp0x/constexpr-reinterpret1.C: XFAIL.
* gcc.dg/tree-ssa/pr21031.c: XFAIL.
>From gcc-bugs-return-618865-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 23:28:16 2018
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Subject: [Bug tree-optimization/87756] New: missing unterminated argument warning using address of a constant character
Date: Thu, 25 Oct 2018 23:28:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87756
Bug ID: 87756
Summary: missing unterminated argument warning using address of
a constant character
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
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GCC 9 successfully diagnoses the unterminated array argument when it's an
actual array but fails to do the same when the argument is the address of a
single character.
$ cat t.c && gcc -O2 -S -Wall t.c
const char c = 'a';
const char a[] = { 'a' };
char *d, *e;
void f (void)
{
__builtin_sprintf (d, "%s", a); // warning (good)
__builtin_sprintf (e, "%s", &c); // missing warning
}
void g (void)
{
__builtin_strcpy (d, a); // warning (good)
__builtin_strcpy (e, &c); // missing warning
}
t.c: In function ‘g’:
t.c:14:3: warning: ‘strcpy’ argument missing terminating nul
[-Wstringop-overflow=]
14 | __builtin_strcpy (d, a); // warning (good)
| ^~~~~~~~~~~~~~~~~~~~~~~
t.c:2:12: note: referenced argument declared here
2 | const char a[] = { 'a' };
| ^
t.c: In function ‘f’:
t.c:8:26: warning: ‘%s’ directive argument is not a nul-terminated string
[-Wformat-overflow=]
8 | __builtin_sprintf (d, "%s", a); // warning (good)
| ^~ ~
t.c:2:12: note: referenced argument declared here
2 | const char a[] = { 'a' };
| ^
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Subject: [Bug tree-optimization/87756] missing unterminated argument warning using address of a constant character
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |diagnostic
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2018-10-25
Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Testing a fix.
>From gcc-bugs-return-618867-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 23:35:26 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #32 from Wilco <wdijkstr at arm dot com> ---
(In reply to Segher Boessenkool from comment #29)
> It aligns the stack to 16:
>
> # r3 is size, at entry
> addi r3,r3,18
> ...
> rlwinm r3,r3,0,0,27
> ...
> neg r3,r3
> ...
> lwz r2,0(r1)
> ...
> stwux r2,r1,r3
>
> (the rlwinm is r3 &= ~15; )
So this rounds up the size but also adds an extra 16 bytes to the requested
allocation. The alloca blocks don't get correctly aligned since
STACK_DYNAMIC_OFFSET returns 72 (which is not a multiple of 16):
t1_a4
addi r2,r1,72 -> 72 % 16 != 0 (correct value would be 64)
stw r6,60(r1)
stw r2,56(r1)
This also shows in t1/t2_a32:
addi r2,r1,103 -> 31 + 72 = 103 (correct value would be 80+31)
stw r6,64(r1)
rlwinm r2,r2,0,0,26
So this proves STACK_DYNAMIC_OFFSET is incorrect indeed. If there are still
failures with that fixed then the stack pointer must also be unaligned.
>From gcc-bugs-return-618868-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 23:38:58 2018
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Subject: [Bug middle-end/87757] New: weird underlining and colors in sprintf warnings for unterminated arrays
Date: Thu, 25 Oct 2018 23:38:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87757
Bug ID: 87757
Summary: weird underlining and colors in sprintf warnings for
unterminated arrays
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
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GCC produces slightly different output for the two equivalent calls to sprintf
below. The underlining for the second call looks wrong, as does its color:
it's green.
$ cat t.c && gcc -O2 -S -Wall t.c
const char a[] = { 'a' };
char *d, *e;
void f (void)
{
__builtin_sprintf (d, "%s", a);
__builtin_sprintf (e, "%s", &a[0]);
}
t.c: In function ‘f’:
t.c:7:26: warning: ‘%s’ directive argument is not a nul-terminated string
[-Wformat-overflow=]
7 | __builtin_sprintf (d, "%s", a);
| ^~ ~
t.c:1:12: note: referenced argument declared here
1 | const char a[] = { 'a' };
| ^
t.c:8:26: warning: ‘%s’ directive argument is not a nul-terminated string
[-Wformat-overflow=]
8 | __builtin_sprintf (e, "%s", &a[0]);
| ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
t.c:1:12: note: referenced argument declared here
1 | const char a[] = { 'a' };
| ^
>From gcc-bugs-return-618869-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Oct 25 23:42:45 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #33 from Wilco <wdijkstr at arm dot com> ---
(In reply to Iain Sandoe from comment #30)
> From "Mac_OS_X_ABI_Function_Calls.pdf"
>
> m32 calling convention
>
> Prologs and Epilogs
> The called function is responsible for allocating its own stack frame,
> making sure to preserve 16-byte alignment in the stack. This operation is
> accomplished by a section of code called the prolog, which the compiler
> places before the body of the subroutine. After the body of the subroutine,
> the compiler places an epilog to restore the processor to the state it was
> prior to the subroutine call.
So functions must preserve 16-byte alignment, but can they rely on the stack
being always 16-byte aligned on entry?
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Subject: [Bug middle-end/87757] weird underlining and colors in sprintf warnings for unterminated arrays
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |diagnostic
CC| |dmalcolm at gcc dot gnu.org
Severity|normal |minor
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
In the first case the argument seen by the sprintf pass is:
<addr_expr 0x7fffefc0a0a0
type <pointer_type 0x7fffefbe8e70
type <array_type 0x7fffefbe8690 type <integer_type 0x7fffefae51f8 char>
QI
size <integer_cst 0x7fffefac0d68 constant 8>
unit-size <integer_cst 0x7fffefac0d80 constant 1>
align:8 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7fffefbe8690 domain <integer_type 0x7fffefae4d20>
pointer_to_this <pointer_type 0x7fffefbe8e70>>
unsigned DI
size <integer_cst 0x7fffefac0c78 constant 64>
unit-size <integer_cst 0x7fffefac0c90 constant 8>
align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7fffefbe8e70>
readonly constant
arg:0 <var_decl 0x7ffff7ff5ab0 a type <array_type 0x7fffefbe8690>
readonly addressable used public static read QI /build/tmp/t.c:1:12
size <integer_cst 0x7fffefac0d68 8> unit-size <integer_cst 0x7fffefac0d80 1>
align:8 warn_if_not_align:0 context <translation_unit_decl
0x7fffefacdc30 /build/tmp/t.c> initial <string_cst 0x7fffefbf1cd8>
chain <var_decl 0x7ffff7ff5b40 d type <pointer_type 0x7fffefae4e70>
used public static unsigned common read DI /build/tmp/t.c:3:7 size
<integer_cst 0x7fffefac0c78 64> unit-size <integer_cst 0x7fffefac0c90 8>
align:64 warn_if_not_align:0 context <translation_unit_decl
0x7fffefacdc30 /build/tmp/t.c> chain <var_decl 0x7ffff7ff5bd0 e>>>
/build/tmp/t.c:7:31 start: /build/tmp/t.c:7:31 finish: /build/tmp/t.c:7:31>
while in the second case it is:
<addr_expr 0x7fffefc0a160
type <pointer_type 0x7fffefae52a0
type <integer_type 0x7fffefae51f8 char readonly string-flag QI
size <integer_cst 0x7fffefac0d68 constant 8>
unit-size <integer_cst 0x7fffefac0d80 constant 1>
align:8 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7fffefae51f8 precision:8 min <integer_cst 0x7fffefac0db0 -128> max
<integer_cst 0x7fffefac0de0 127>
pointer_to_this <pointer_type 0x7fffefae52a0>>
unsigned DI
size <integer_cst 0x7fffefac0c78 constant 64>
unit-size <integer_cst 0x7fffefac0c90 constant 8>
align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7fffefae52a0>
readonly constant
arg:0 <array_ref 0x7fffefacc0a8 type <integer_type 0x7fffefae51f8 char>
readonly
arg:0 <var_decl 0x7ffff7ff5ab0 a type <array_type 0x7fffefbe8690>
readonly addressable used public static read QI /build/tmp/t.c:1:12
size <integer_cst 0x7fffefac0d68 8> unit-size <integer_cst 0x7fffefac0d80 1>
align:8 warn_if_not_align:0 context <translation_unit_decl
0x7fffefacdc30 /build/tmp/t.c> initial <string_cst 0x7fffefbf1cd8> chain
<var_decl 0x7ffff7ff5b40 d>>
arg:1 <integer_cst 0x7fffefadf018 constant 0>
/build/tmp/t.c:8:33 start: /build/tmp/t.c:8:32 finish:
/build/tmp/t.c:8:35>
/build/tmp/t.c:8:3 start: /build/tmp/t.c:8:3 finish: /build/tmp/t.c:8:36>
The (presumably) relevant difference in the locations of the two is:
/build/tmp/t.c:7:31 start: /build/tmp/t.c:7:31 finish: /build/tmp/t.c:7:31
vs
/build/tmp/t.c:8:3 start: /build/tmp/t.c:8:3 finish: /build/tmp/t.c:8:36
Not sure where that comes from, but the ADDR_EXPR operand does have the right
location.
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--- Comment #34 from Douglas Mencken <dougmencken at gmail dot com> ---
Created attachment 44903
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44903&action=edit
8.2vanilla-pr78468.s
And there’s assembly produced by *vanilla* (id est with Wilco’s r251713 causing
the fail in question) 8.2’s stage1 xgcc
--- 8.2vanilla-pr78468.s
+++ 8.2patched-pr78468.s
@@ -70,7 +70,7 @@
mflr r0
stw r30,-8(r1)
stw r0,8(r1)
- addi r3,r3,15
+ addi r3,r3,18
stw r31,-4(r1)
rlwinm r3,r3,0,0,27
stwu r1,-96(r1)
@@ -103,7 +103,7 @@
mflr r0
stw r30,-8(r1)
stw r0,8(r1)
- addi r3,r3,15
+ addi r3,r3,18
stw r31,-4(r1)
rlwinm r3,r3,0,0,27
stwu r1,-96(r1)
@@ -137,7 +137,7 @@
mflr r0
stw r30,-8(r1)
stw r0,8(r1)
- addi r3,r3,15
+ addi r3,r3,22
stw r31,-4(r1)
rlwinm r3,r3,0,0,27
stwu r1,-96(r1)
@@ -170,7 +170,7 @@
mflr r0
stw r30,-8(r1)
stw r0,8(r1)
- addi r3,r3,15
+ addi r3,r3,22
stw r31,-4(r1)
rlwinm r3,r3,0,0,27
stwu r1,-96(r1)
@@ -204,7 +204,7 @@
mflr r0
stw r30,-8(r1)
stw r0,8(r1)
- addi r3,r3,15
+ addi r3,r3,30
stw r31,-4(r1)
rlwinm r3,r3,0,0,27
stwu r1,-96(r1)
@@ -237,7 +237,7 @@
mflr r0
stw r30,-8(r1)
stw r0,8(r1)
- addi r3,r3,15
+ addi r3,r3,30
stw r31,-4(r1)
rlwinm r3,r3,0,0,27
stwu r1,-96(r1)
@@ -271,7 +271,7 @@
mflr r0
stw r30,-8(r1)
stw r0,8(r1)
- addi r3,r3,31
+ addi r3,r3,46
stw r31,-4(r1)
rlwinm r3,r3,0,0,27
stwu r1,-96(r1)
@@ -305,7 +305,7 @@
mflr r0
stw r30,-8(r1)
stw r0,8(r1)
- addi r3,r3,31
+ addi r3,r3,46
stw r31,-4(r1)
rlwinm r3,r3,0,0,27
stwu r1,-96(r1)
>From gcc-bugs-return-618872-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 00:06:49 2018
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--- Comment #35 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Wilco from comment #33)
> So functions must preserve 16-byte alignment, but can they rely on the stack
> being always 16-byte aligned on entry?
I bet yes when it’s not some hardcoded-by-hand assembly with its own rules. So
you may be sure that you get r1 with zeroes in last four bits of it on “bl†or
like
>From gcc-bugs-return-618873-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 00:13:38 2018
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--- Comment #36 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Iain Sandoe from comment #31)
> * please could you use
> --build=powerpc-apple-darwin9 --host=powerpc-apple-darwin9
> --target=powerpc-apple-darwin9 (or leave these off - which will cause it to
> use the current system version).
Does it matter so much? I bet it doesn’t. And host (stage0) compiler I use is
patched 7.3 GCC configured with powerpc-unknown-darwin triplet
> * how about a build --enable-checking=yes[,rtf,tree] ? in case that shows
> something useful?
Yet I’m some kind of being tired of process of building GCC many times, so
maybe.. later
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #37 from Douglas Mencken <dougmencken at gmail dot com> ---
And some more in my wish list. May GCC don’t generate these
.align 2
in text section? Any, each and every powerpc instruction is 32bit-wide, no and
never more, no and never less, so these aligns are redundant
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--- Comment #38 from Wilco <wdijkstr at arm dot com> ---
(In reply to Douglas Mencken from comment #37)
> And some more in my wish list. May GCC don’t generate these
>
> .align 2
>
> in text section? Any, each and every powerpc instruction is 32bit-wide, no
> and never more, no and never less, so these aligns are redundant
You can have data in text sections, including bytes and half words. Even if
instructions aligned automatically, the function label might be unaligned if it
was preceded by a byte.
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--- Comment #39 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Wilco from comment #38)
> You can have data in text sections, including bytes and half words. Even if
> instructions aligned automatically, the function label might be unaligned if
> it was preceded by a byte.
Ah, like in these old days of manual coding in ppc assembly... But when entry
of function is aligned on 2-byte but not 4-byte then code of such function
would not be understood by processor at all. Thus or .align 4, or ditch that
“can have data in text sections†completely
>From gcc-bugs-return-618877-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 00:33:59 2018
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--- Comment #40 from Douglas Mencken <dougmencken at gmail dot com> ---
Yet I got what I wanted ~ the working GCC 8.2
$ /Developer/GCC/8.2p/PowerPC/32bit/bin/gcc -v
Using built-in specs.
COLLECT_GCC=/Developer/GCC/8.2p/PowerPC/32bit/bin/gcc
COLLECT_LTO_WRAPPER=/Developer/GCC/8.2p/PowerPC/32bit/libexec/gcc/powerpc-unknown-darwin/8.2.0/lto-wrapper
Target: powerpc-unknown-darwin
Configured with: ../gcc-8.2.0/configure --build=powerpc-unknown-darwin
--host=powerpc-unknown-darwin --target=powerpc-unknown-darwin
--prefix=/Developer/GCC/8.2p/PowerPC/32bit
--enable-languages=c,c++,objc,obj-c++ --enable-shared --enable-static
--enable-checking=release --enable-threads=posix --with-__thread
--without-system-zlib --disable-nls --disable-werror
Thread model: posix
gcc version 8.2.0 (GCC)
To build it, I patched its sources with fix_gcc8_build.patch reversion together
with changes from comment #16
>From gcc-bugs-return-618878-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 00:44:11 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #41 from Wilco <wdijkstr at arm dot com> ---
(In reply to Douglas Mencken from comment #40)
> To build it, I patched its sources with fix_gcc8_build.patch reversion
> together with changes from comment #16
So what is the disassembly now? The 2nd diff still shows the original unaligned
STACK_DYNAMIC_OFFSET.
>From gcc-bugs-return-618879-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 00:56:48 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #42 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Wilco from comment #41)
> So what is the disassembly now?
$ /Developer/GCC/8.2p/PowerPC/32bit/bin/gcc -O2 -fno-inline pr78468.c
-save-temps
$ mv pr78468.s ~/
$ diff -u ~/8.2patched-pr78468.s ~/pr78468.s
Shows nothing, so they are identical
> The 2nd diff still shows the original unaligned STACK_DYNAMIC_OFFSET.
Second is vanilla 8.2, unpatched, which is marked with “-†in diff I posted
Possible problem is that in
- if (size_align > known_align)
- size_align = known_align;
+ if (extra && size_align > BITS_PER_UNIT)
+ size_align = BITS_PER_UNIT;
you forgot if (extra /* assumed >0 */
>From gcc-bugs-return-618880-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 01:12:13 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Fri, 26 Oct 2018 01:12:00 -0000
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--- Comment #43 from Wilco <wdijkstr at arm dot com> ---
(In reply to Douglas Mencken from comment #42)
> (In reply to Wilco from comment #41)
>
> > So what is the disassembly now?
>
> $ /Developer/GCC/8.2p/PowerPC/32bit/bin/gcc -O2 -fno-inline pr78468.c
> -save-temps
> $ mv pr78468.s ~/
> $ diff -u ~/8.2patched-pr78468.s ~/pr78468.s
>
> Shows nothing, so they are identical
So that patch didn't do anything to fix STACK_DYNAMIC_OFFSET then. If it has no
effect then is that header really used?
> > The 2nd diff still shows the original unaligned STACK_DYNAMIC_OFFSET.
>
> Second is vanilla 8.2, unpatched, which is marked with “-†in diff I posted
>
> Possible problem is that in
>
> - if (size_align > known_align)
> - size_align = known_align;
> + if (extra && size_align > BITS_PER_UNIT)
> + size_align = BITS_PER_UNIT;
>
> you forgot if (extra /* assumed >0 */
No the problem is not in this code. It's STACK_DYNAMIC_OFFSET which is wrong.
>From gcc-bugs-return-618881-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 01:39:09 2018
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From: "John.Ericson at Obsidian dot Systems" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/87758] New: --print-file-name= ignores -L
Date: Fri, 26 Oct 2018 01:39:00 -0000
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Not respecting -L makes for confusing behavior. I'm surprised there was no
issue for this before, as this behavior is probably quite old.
--print-prog-name= likewise doesn't use PATH, but at least in that case gcc
will also use just -B to find as/ld, so this is honest. [I take some issue with
ignoring PATH, but that is a separate issue.]
A --print-include-name= using -I (and maybe variants for -isystem, and -iquote)
would also be useful primitives.
>From gcc-bugs-return-618882-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 04:04:50 2018
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Subject: [Bug libstdc++/87106] Group move and destruction of the source, where possible, for speed
Date: Fri, 26 Oct 2018 04:04:00 -0000
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--- Comment #7 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> ---
> std::string is not trivially relocatable in libstdc++
This is surprising news to me! Just goes to show that we would benefit from an
accurate detection mechanism and type trait. :)
> so I won't waste any time there. IIRC, one difference with what you did is that I use relocation even for some types that are not trivially relocatable (in particular std::string)
...but which are is_nothrow_relocatable. Right. This is a good point in the
direction of maybe keeping is_nothrow_relocatable in P1144. I was thinking that
maybe it was pointless and should be removed until a use-case is found for it.
Now I'm even more unsure.
> 2) the conditionally trivial stuff is not very convenient, it seems to involve a lot of code duplication. People regularly suggest attributes of the form [[trivially_relocatable(condition)]] which might reduce the noise but are harder to specify.
Agreed on all counts. Particularly for this attribute, I worry that the common
use-case would be something really ugly like
template<class T, class A>
class [[trivially_relocatable(
is_trivially_relocatable_v<A> &&
is_trivially_relocatable_v<typename allocator_traits<A>::pointer>
)]] vector {
};
which I hope you'd agree would be even more ridiculous than the current
metaprogramming/duplication. And then on top of that, parsing an attribute-list
would become as hard as parsing all of C++, which I don't think we want.
> 4) ... Relocating a pair<A,B> where A is trivially relocatable and B is not can still benefit from doing piecewise relocations so it avoids A's super-costly move constructor.
Hmm, I see what you mean, and that is a relevant and novel point AFAIC. The
judo dodge for P1144 here is to point out that if today we provide a way to
warrant/detect *trivial* relocation, well, that is not incompatible with
providing a way to *customize* relocation tomorrow. We just need to agree that
relocation ought to be "tantamount to" a move plus a destroy.
> Ideally relocation would be a constructor or something similarly magic and the compiler would auto-generate it for aggregates, etc. But I am asking a bit much there...
Yes, Denis Bider's P0023 "Relocator"
http://open-std.org/JTC1/SC22/WG21/docs/papers/2016/p0023r0.pdf
went that route, and I think it was not well received -- or possibly just not
discussed at all, I'm not sure.
Thanks for the comments and the nice work!
>From gcc-bugs-return-618883-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 04:11:04 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/87759] New: [8/9 Regression] ICE in lra_assign, at lra-assigns.c:1624, or ICE: Maximum number of LRA assignment passes is achieved (30), or compile-time hog
Date: Fri, 26 Oct 2018 04:11:00 -0000
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Bug ID: 87759
Summary: [8/9 Regression] ICE in lra_assign, at
lra-assigns.c:1624, or ICE: Maximum number of LRA
assignment passes is achieved (30), or compile-time
hog
Product: gcc
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Target: x86_64-pc-linux-gnu
1.
gcc-9.0.0-alpha20181021 snapshot (r265361) ICEs when compiling the following
snippet w/ -O2 (-O3, -Ofast) -fschedule-insns -fselective-scheduling -ftrapv
-fno-dce -fno-expensive-optimizations -fno-ipa-ra -fno-tree-dce -fno-tree-ter:
int cc;
void
rc (__int128 *oi)
{
__int128 qz = (__int128)2 << cc;
if (qz != 0)
{
if (cc != 0)
{
__int128 zp = 1;
for (;;)
{
unsigned __int128 *ar = &cc;
int y5;
if (oi != 0)
{
y3:
zp = *oi + *ar;
}
y5 = (cc + 1) == ((*ar /= *oi) << ((zp >>= 128) / cc));
qz += !!y5 ? 1 : qz == (*ar ^ zp + 1);
++*oi;
}
}
else
++qz;
}
goto y3;
}
% x86_64-pc-linux-gnu-gcc-9.0.0-alpha20181021 -O2 -fschedule-insns
-fselective-scheduling -ftrapv -fno-dce -fno-expensive-optimizations
-fno-ipa-ra -fno-tree-dce -fno-tree-ter -w -c alqzfpag.c
during RTL pass: reload
alqzfpag.c: In function 'rc':
alqzfpag.c:35:1: internal compiler error: in lra_assign, at lra-assigns.c:1624
35 | }
| ^
0xb582d9 lra_assign(bool&)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/lra-assigns.c:1624
0xb5319d lra(_IO_FILE*)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/lra.c:2508
0xb0b131 do_reload
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/ira.c:5469
0xb0b131 execute
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/ira.c:5653
2.
Removing -fno-ipa-ra from the command line above yields the following:
% x86_64-pc-linux-gnu-gcc-9.0.0-alpha20181021 -O2 -fschedule-insns
-fselective-scheduling -ftrapv -fno-dce -fno-expensive-optimizations
-fno-tree-dce -fno-tree-ter -w -c alqzfpag.c
during RTL pass: reload
alqzfpag.c: In function 'rc':
alqzfpag.c:35:1: internal compiler error: Maximum number of LRA assignment
passes is achieved (30)
35 | }
| ^
0xb582c0 lra_assign(bool&)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/lra-assigns.c:1669
0xb5319d lra(_IO_FILE*)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/lra.c:2508
0xb0b131 do_reload
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/ira.c:5469
0xb0b131 execute
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/ira.c:5653
3.
gcc 8.2 takes indefinite time to compile the testcase w/ either set of command
line options.
>From gcc-bugs-return-618884-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 04:20:02 2018
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Subject: [Bug c++/87760] New: Unable to delete overloads of std::memset on arm
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87760
Bug ID: 87760
Summary: Unable to delete overloads of std::memset on arm
Product: gcc
Version: 6.3.0
Status: UNCONFIRMED
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Hello,
I know this is technically speaking undefined behavior (not allowed to change
things inside namespace std), and thus not a bug but more a feature request.
Since all version of gcc I've tested (x86 and x64), clang, icc and msvc accept
following code, I think it makes sense to open this bug because it would be
nice for gcc to be more consistent, since it's just gcc on arm rejecting it.
----
#include <cstring>
namespace std{
void* memset(void*, std::size_t count, int ch) = delete;
}
struct foo{ // POD
int a;
int* b;
char c;
};
int main() {
foo b[10];
std::memset(&b, 0, sizeof b);
std::memset(&b, 0u, sizeof b);
}
----
This code on arm64 fails to compile with following error message:
----
<source>:4:7: error: deleted definition of 'void* std::memset(void*,
std::size_t, int)'
void* memset(void*, std::size_t count, int ch) = delete;
^~~~~~
<built-in>: note: previous declaration of 'void* std::memset(void*, int, long
unsigned int)'
Compiler returned: 1
----
As already mentioned, this hack works with different compilers and helps to
avoid common errors like forgetting the right order of parameter of memset, ie
it helps at compile time to spot errors where someone writes `std::memset(&b,
sizeof b, 0);` instead of `std::memset(&b, 0, sizeof b);`.
Since I do not have locally an arm version, I tested it on compiler explorer:
https://godbolt.org/z/aTX9FZ
Also note that removing the overload from the global namespace is not an issue
on arm64, ie
----
#include <cstring>
void* memset(void*, std::size_t count, int ch) = delete;
struct foo{ // POD
int a;
int* b;
char c;
};
int main() {
foo b[10];
memset(&b, 0, sizeof b);
memset(&b, 0u, sizeof b);
}
----
compiles fine (except on arm non x64 because the overload is ambiguous, but
AFAIK there is nothing we can do about it).
>From gcc-bugs-return-618885-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 04:47:27 2018
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Subject: [Bug libffi/28036] libffi executable stack (missing .note.GNU-stack on .o files)
Date: Fri, 26 Oct 2018 04:47:00 -0000
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--- Comment #7 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #6)
> (In reply to Eric Gallager from comment #4)
> > Seeing as this bug is about how libffi is used by gcj, and gcj has been
> > removed from gcc, does it still need to stay open? Or does it affect other
> > users of libffi in gcc, too? (e.g. go)
>
> Go uses libffi still.
Yeah but does Go care whether libffi's stack is executable or not?
>From gcc-bugs-return-618887-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 04:50:32 2018
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Subject: [Bug debug/82738] [meta-bug] issues with the -Og optimization level
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Bug 82738 depends on bug 68836, which changed state.
Bug 68836 Summary: GCC can't properly emit debug info for function arguments in a back-trace when using -Og
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68836
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |INVALID
>From gcc-bugs-return-618886-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 04:50:29 2018
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Subject: [Bug debug/68836] GCC can't properly emit debug info for function arguments in a back-trace when using -Og
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Eric Gallager <egallager at gcc dot gnu.org> changed:
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--- Comment #5 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> Without a (guality?) testcase there's nothing to do here.
Well, still no testcase, guality or otherwise, so closing due to being in
WAITING for so long.
>From gcc-bugs-return-618888-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 05:04:19 2018
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Subject: [Bug middle-end/21161] [6/7/8/9 Regression] "clobbered by longjmp" warning ignores the data flow
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Eric Gallager <egallager at gcc dot gnu.org> changed:
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--- Comment #18 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Jeffrey A. Law from comment #12)
> I've got something that is working on most targets. I'm still refining a
> bit, but I'm pretty confident we'll be able to fix in this cycle.
>
> As expected scanning RTL from the setjmp point to figure out where the
> longjmp will go (so that we can use the live-in set at the longjmp target
> rather than the live set at the setjmp point) is a bit hairy.
>
> It's almost certainly the case that the scanning is not going to work on all
> targets. For example MIPS inserts an unspec sequence to fiddle the GOT
> after the call and I really don't want to ignore an insn we don't
> understand. But again, what I've currently got works on most targets and
> there's still some refinements to do to improve coverage.
Changing status to ASSIGNED, then, since you made yourself the assignee
>From gcc-bugs-return-618889-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 05:07:27 2018
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Subject: [Bug target/85860] [8/9 Regression] ICE: in lra_split_hard_reg_for, at lra-assigns.c:1810: unable to find a register to spill with -flive-range-shrinkage -mbmi2
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--- Comment #3 from Arseny Solokha <asolokha at gmx dot com> ---
I cannot reproduce it anymore w/ gcc-9.0.0-alpha20181021 snapshot (r265361).
Seems to be fixed on the trunk w/ recent LRA-related patches.
>From gcc-bugs-return-618890-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 05:08:50 2018
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Subject: [Bug preprocessor/83173] C preprocessor generates incorrect linemarkers
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--- Comment #8 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Pádraig Brady from comment #7)
> Have been running with these patches on an extremely large code base for the
> last few months, without issue
Can you say which code base?
>From gcc-bugs-return-618891-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 06:04:43 2018
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Subject: [Bug target/85860] [8/9 Regression] ICE: in lra_split_hard_reg_for, at lra-assigns.c:1810: unable to find a register to spill with -flive-range-shrinkage -mbmi2
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--- Comment #4 from Zdenek Sojka <zsojka at seznam dot cz> ---
Created attachment 44904
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44904&action=edit
unreduced testcase
(In reply to Arseny Solokha from comment #3)
> I cannot reproduce it anymore w/ gcc-9.0.0-alpha20181021 snapshot (r265361).
> Seems to be fixed on the trunk w/ recent LRA-related patches.
The unreduced testcase is still failing for me.
$ x86_64-pc-linux-gnu-gcc -O2 -fno-guess-branch-probability
-flive-range-shrinkage -mbmi2 xxx.c -w
xxx.c: In function 'bar1':
xxx.c:62:1: error: unable to find a register to spill
62 | }
| ^
xxx.c:62:1: error: this is the insn:
(insn 368 117 348 3 (set (reg:DI 338)
(reg:DI 1 dx)) "xxx.c":57:12 66 {*movdi_internal}
(expr_list:REG_DEAD (reg:DI 1 dx)
(nil)))
during RTL pass: reload
xxx.c:62:1: internal compiler error: in lra_split_hard_reg_for, at
lra-assigns.c:1810
0x68455b _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/repo/gcc-trunk/gcc/rtl-error.c:108
0xc6f016 lra_split_hard_reg_for()
/repo/gcc-trunk/gcc/lra-assigns.c:1810
0xc6870c lra(_IO_FILE*)
/repo/gcc-trunk/gcc/lra.c:2533
0xc153e9 do_reload
/repo/gcc-trunk/gcc/ira.c:5469
0xc153e9 execute
/repo/gcc-trunk/gcc/ira.c:5653
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
>From gcc-bugs-return-618892-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 06:31:38 2018
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From: "paul.hua.gm at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/87761] New: [9 regression][MIPS] New FAIL: gcc.target/mips/fix-r4000-10.c -O1 start with r265398
Date: Fri, 26 Oct 2018 06:31:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87761
Bug ID: 87761
Summary: [9 regression][MIPS] New FAIL:
gcc.target/mips/fix-r4000-10.c -O1 start with
r265398
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: paul.hua.gm at gmail dot com
Target Milestone: ---
paulhua@gcc122:~/debug_r265398$ cat fix-r4000-10.i
# 1
"/home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.target/mips/fix-r4000-10.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 1 "<command-line>" 2
# 1
"/home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.target/mips/fix-r4000-10.c"
typedef unsigned long long uint64_t;
typedef unsigned int uint128_t __attribute__((mode(TI)));
__attribute__((nomips16)) uint128_t foo (uint64_t x, uint64_t y) { return
(uint128_t) x * y; }
paulhua@gcc122:~/debug_r265398$ ~/build/gcc_397_obj/gcc/cc1 -fpreprocessed
fix-r4000-10.i -mel -quiet -dumpbase fix-r4000-10.c -dp -mips3 -mgp64
-mno-micromips -mno-mips3d -mno-dsp -mno-dspr2 -mfix-r4000 -mno-paired-single
-mno-synci -mnan=legacy -mabi=64 -mllsc -mno-shared -auxbase-strip
fix-r4000-10.s -O1 -version -fdiagnostics-color=never
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fno-split-wide-types -ffat-lto-objects -fno-ident -o fix-r4000-10.s
-mno-abicalls
good:
paulhua@gcc122:~/debug_r265398$ cat fix-r4000-10.s
.file 1 "fix-r4000-10.c"
.section .mdebug.abi64
.previous
.nan legacy
.gnu_attribute 4, 1
.text
.align 2
.globl foo
.set nomips16
.ent foo
.type foo, @function
foo:
.frame $sp,0,$31 # vars= 0, regs= 0/0, args= 0, gp= 0
.mask 0x00000000,0
.fmask 0x00000000,0
dmultu $4,$5 # 17 [c=48 l=12] umulditi3_r4000
mflo $2
mfhi $3
jr $31 # 39 [c=0 l=8] *simple_return
.end foo
.size foo, .-foo
after r265398 bad asm:
paulhua@gcc122:~/debug_r265398$ cat fix-r4000-10.s
.file 1 "fix-r4000-10.c"
.section .mdebug.abi64
.previous
.nan legacy
.text
.align 2
.globl foo
.set nomips16
.ent foo
.type foo, @function
foo:
.frame $sp,0,$31 # vars= 0, regs= 0/0, args= 0, gp= 0
.mask 0x00000000,0
.fmask 0x00000000,0
move $6,$5 # 34 [c=4 l=4] *movdi_64bit/0
move $2,$4 # 10 [c=4 l=4] *movdi_64bit/0
dmultu $2,$6 # 17 [c=48 l=12] umulditi3_r4000
mflo $2
mfhi $3
jr $31 # 43 [c=0 l=8] *simple_return
.end foo
.size foo, .-foo
>From gcc-bugs-return-618893-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 06:41:07 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Fri, 26 Oct 2018 06:41:00 -0000
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--- Comment #44 from Douglas Mencken <dougmencken at gmail dot com> ---
I got assembly of pr78468.c from various versions of GCC
• 7.3 produces absolutely the same as patched 8.2
• 6.4 produces slightly different assembly with stmw & lmw and different
sequence of instructions, but numbers like in “addi r2,r1,103†are the same
• 4.2.1 can’t compile it at all pr78468.c:9: error: expected ‘=’, ‘,’, ‘;’,
‘asm’ or ‘__attribute__’ before ‘uintptr_t’
(In reply to Wilco from comment #43)
> No the problem is not in this code. It's STACK_DYNAMIC_OFFSET which is wrong.
I can’t get where is the value of STACK_DYNAMIC_OFFSET in published assembly
and why do you think it is wrong
It seems that the problem is in fact that your version of
get_dynamic_stack_size from explow.c (introduced with r251713) gives out too
small values, for example in _t1_a8 it is fifteen “addi r3,r3,15†while ages
before that it worked as being “addi r3,r3,22â€
- addi r3,r3,15
+ addi r3,r3,22
And aligning looks okay, it is then handled by code for
#define RS6000_ALIGN(n,a) ROUND_UP ((n), (a))
#define ROUND_UP(x,y) (((x) + (y) - 1) & ~((y) - 1))
part of which is rlwinm and such
(16 + 15) & ~15 = 16
(16 + 22) & ~15 = 32
Thus for your version of get_dynamic_stack_size that size is 16 here, but for
previous ones it is 32. And eventually this leads to fail for such built-ins as
acos, floor, &c.
>From gcc-bugs-return-618894-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 06:47:13 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #45 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to self from comment #44)
> I can’t get where is the value of STACK_DYNAMIC_OFFSET in published assembly
> and why do you think it is wrong
Most likely this value is shown as 96 in “addi r1,r30,96†(80 for _t1 and _t2)
of epilogues
bl _t1
addi r1,r30,96
lwz r0,8(r1)
lwz r30,-8(r1)
lwz r31,-4(r1)
mtlr r0
blr
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #46 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Wilco from comment #38)
> You can have data in text sections, including bytes and half words. Even if
> instructions aligned automatically, the function label might be unaligned if
> it was preceded by a byte.
I found example of such code
** ---------- Find_GetSectionInfo_Symbol ---------- **
** input: (none)
** output: (see Query_CFM_FindSymbol)
** ------------------------------------------------ **
Find_GetSectionInfo_Symbol:
mflr r4
bl _Get_Data_Address
mflr r3
mtlr r4
la r3,@str_getSectionInfo-@data(r3)
b Query_CFM_FindSymbol
** -------------- _Get_Data_Address --------------- **
** output: LR = address of data (below)
** ------------------------------------------------ **
_Get_Data_Address:
blrl
** ++++++++++++++++++++++++++++++++++++++++++++++++ **
@data:
@str_callUP:
DC.B 17,"CallUniversalProc"
@str_callOSTrapUP:
DC.B 23,"CallOSTrapUniversalProc"
@str_getSectionInfo:
DC.B 18,"FragGetSectionInfo",0
Yeah, PowerPC doesn’t have addressing via PC, thus it requires to do tricks
like that
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Subject: [Bug target/87762] New: extract_constrain_insn, at recog.c:2206 on s390x
Date: Fri, 26 Oct 2018 06:58:00 -0000
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Bug ID: 87762
Summary: extract_constrain_insn, at recog.c:2206 on s390x
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
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Host: x86_64-pc-linux-gnu
Target: s390x-linux-gnu
Following causes ICE:
$ s390x-linux-gnu-gcc
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/pr59037.c -O
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/pr59037.c: In function
‘main’:
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/pr59037.c:12:1: error:
insn does not satisfy its constraints:
12 | }
| ^
(insn 17 9 14 2 (set (reg/f:DI 1 %r1 [65])
(plus:DI (unspec:DI [
(symbol_ref/u:DI ("*.LC0") [flags 0x2])
(reg:DI 5 %r5)
] UNSPEC_LTREF)
(const_int 16 [0x10])))
"/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/pr59037.c":12:1 1269
{*movdi_64}
(expr_list:REG_DEAD (reg:DI 5 %r5)
(expr_list:REG_EQUIV (const:DI (plus:DI (symbol_ref/u:DI ("*.LC0")
[flags 0x2])
(const_int 16 [0x10])))
(nil))))
during RTL pass: cprop_hardreg
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/pr59037.c:12:1:
internal compiler error: in extract_constrain_insn, at recog.c:2206
0x55d382 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/rtl-error.c:108
0x55d3a8 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/rtl-error.c:118
0x55c8ae extract_constrain_insn(rtx_insn*)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/recog.c:2206
0x97b007 copyprop_hardreg_forward_1
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/regcprop.c:801
0x97bb74 execute
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-s390x/build/gcc/regcprop.c:1307
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Subject: [Bug target/87762] extract_constrain_insn, at recog.c:2206 on s390x
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2018-10-26
CC| |krebbel at gcc dot gnu.org
Target Milestone|--- |9.0
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Martin Liška <marxin at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-26
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Known to fail| |9.0
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed.
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Subject: [Bug rtl-optimization/87761] [9 regression][MIPS] New FAIL: gcc.target/mips/fix-r4000-10.c -O1 start with r265398
Date: Fri, 26 Oct 2018 07:04:00 -0000
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--- Comment #1 from Paul Hua <paul.hua.gm at gmail dot com> ---
and other new fails:
681 FAIL: gcc.target/mips/fpr-moves-5.c -O1 scan-assembler
\\tsdc1\\t\\\\\$f12,0\\\\(\\\\\$6\\\\)\\n
682 FAIL: gcc.target/mips/fpr-moves-5.c -O1 scan-assembler
\\tsdc1\\t\\\\\$f13,8\\\\(\\\\\$6\\\\)\\n
683 FAIL: gcc.target/mips/fpr-moves-5.c -O2 scan-assembler
\\tsdc1\\t\\\\\$f12,0\\\\(\\\\\$6\\\\)\\n
684 FAIL: gcc.target/mips/fpr-moves-5.c -O2 scan-assembler
\\tsdc1\\t\\\\\$f13,8\\\\(\\\\\$6\\\\)\\n
685 FAIL: gcc.target/mips/fpr-moves-5.c -O2 -flto -fno-use-linker-plugin
-flto-partition=none scan-assembler \\tsdc1\\t\\\\\$f12,0\\\\(\\\\\$6\\\\)\\n
686 FAIL: gcc.target/mips/fpr-moves-5.c -O2 -flto -fno-use-linker-plugin
-flto-partition=none scan-assembler \\tsdc1\\t\\\\\$f13,8\\\\(\\\\\$6\\\\)\\n
687 FAIL: gcc.target/mips/fpr-moves-5.c -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects scan-assembler \\tsdc1\\t\\\\\$f12,0\\\\(\\\\\$6\\\\)\\n
688 FAIL: gcc.target/mips/fpr-moves-5.c -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects scan-assembler \\tsdc1\\t\\\\\$f13,8\\\\(\\\\\$6\\\\)\\n
689 FAIL: gcc.target/mips/fpr-moves-5.c -O3 -g scan-assembler
\\tsdc1\\t\\\\\$f12,0\\\\(\\\\\$6\\\\)\\n
690 FAIL: gcc.target/mips/fpr-moves-5.c -O3 -g scan-assembler
\\tsdc1\\t\\\\\$f13,8\\\\(\\\\\$6\\\\)\\n
691 FAIL: gcc.target/mips/fpr-moves-5.c -Os scan-assembler
\\tsdc1\\t\\\\\$f12,0\\\\(\\\\\$6\\\\)\\n
692 FAIL: gcc.target/mips/fpr-moves-5.c -Os scan-assembler
\\tsdc1\\t\\\\\$f13,8\\\\(\\\\\$6\\\\)\\n
$ cat fpr-moves-5.i
# 1
"/home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.target/mips/fpr-moves-5.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 1 "<command-line>" 2
# 1
"/home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.target/mips/fpr-moves-5.c"
__attribute__((nomips16)) void
foo (long double d, long double *x)
{
*x = d;
}
__attribute__((nomips16)) long double
bar (long double d, long double *x)
{
register long double l1 asm ("$8") = d;
register long double l2 asm ("$10") = x[1];
register long double l3 asm ("$f20") = 0.0;
asm ("#foo" : "=d" (l1) : "d" (l1));
asm ("#foo" : "=d" (l2) : "d" (l2));
asm volatile ("#foo" :: "f" (l3));
x[1] = l1;
return l2;
}
$./cc1 -fpreprocessed fpr-moves-5.i -mel -quiet -dumpbase fpr-moves-5.c
-mabi=64 -mhard-float -mgp64 -mlong64 -march=mips64r2 -mllsc -mips64r2
-mno-shared -auxbase-strip fpr-moves-5.s -O1 -version -fdiagnostics-color=never
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-ffat-lto-objects -fno-ident -o fpr-moves-5.s
good asm:
foo:
.frame $sp,0,$31 # vars= 0, regs= 0/0, args= 0, gp= 0
.mask 0x00000000,0
.fmask 0x00000000,0
.set noreorder
.set nomacro
sdc1 $f12,0($6)
jr $31
sdc1 $f13,8($6)
bad asm:
foo:
.frame $sp,0,$31 # vars= 0, regs= 0/0, args= 0, gp= 0
.mask 0x00000000,0
.fmask 0x00000000,0
.set noreorder
.set nomacro
dmfc1 $2,$f12
dmfc1 $3,$f13
sd $2,0($6)
jr $31
sd $3,8($6)
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Subject: [Bug lto/87754] [9 regression] ICE in odr_types_equivalent_p, at ipa-devirt.c:1250
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----------------------------------------------------------------------------
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--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Honza needs to fix it.
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Subject: [Bug fortran/87752] ICE in omp_add_variable, at gimplify.c:6776
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Martin Liška <marxin at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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CC| |marxin at gcc dot gnu.org
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--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, it's very old, GCC 4.8 is also affected.
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Subject: [Bug tree-optimization/87746] [9 Regression] ICE in vect_update_misalignment_for_peel, at tree-vect-data-refs.c:1035
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--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Oct 26 07:12:02 2018
New Revision: 265517
URL: https://gcc.gnu.org/viewcvs?rev=265517&root=gcc&view=rev
Log:
2018-10-26 Richard Biener <rguenther@suse.de>
PR tree-optimization/87746
* tree-vect-data-refs.c (vect_update_misalignment_for_peel):
Simplify and fix WRT strided store groups with size not
equal to step in element count.
(vect_analyze_group_access_1): Dump the whole group.
* gcc.dg/pr87746.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/pr87746.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-data-refs.c
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Subject: [Bug tree-optimization/87746] [9 Regression] ICE in vect_update_misalignment_for_peel, at tree-vect-data-refs.c:1035
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug c++/87750] [8/9 Regression] Failed compilation / parsing of template member call after 'using' declaration
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What |Removed |Added
----------------------------------------------------------------------------
Keywords| |rejects-valid
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2018-10-26
Target Milestone|--- |8.3
Summary|Failed compilation / |[8/9 Regression] Failed
|parsing of template member |compilation / parsing of
|call after 'using' |template member call after
|declaration |'using' declaration
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Please attach the testcase here, godbolt.org notoriously refuses to provide it
as plain-text.
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Subject: [Bug libstdc++/87106] Group move and destruction of the source, where possible, for speed
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87106
--- Comment #8 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Arthur O'Dwyer from comment #7)
> 2) the conditionally trivial stuff is not very convenient, it seems to involve a lot of code duplication. People regularly suggest attributes of the form [[trivially_relocatable(condition)]] which might reduce the noise but are harder to specify.
>
> Agreed on all counts. Particularly for this attribute, I worry that the
> common use-case would be something really ugly like
>
> template<class T, class A>
> class [[trivially_relocatable(
> is_trivially_relocatable_v<A> &&
> is_trivially_relocatable_v<typename allocator_traits<A>::pointer>
> )]] vector {
> };
>
> which I hope you'd agree would be even more ridiculous than the current
> metaprogramming/duplication.
We already have a number of similar constructs, like noexcept. Still better
than duplicating the whole class IMO.
> And then on top of that, parsing an
> attribute-list would become as hard as parsing all of C++, which I don't
> think we want.
The code is already there in the parser, calling it should not be too hard.
However, we end up with questions like: when is the expression evaluated?
Instantiating some member classes too eagerly could break some code.
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Subject: [Bug lto/87754] [9 regression] ICE in odr_types_equivalent_p, at ipa-devirt.c:1250
Date: Fri, 26 Oct 2018 07:19:00 -0000
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--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Oct 26 07:19:07 2018
New Revision: 265518
URL: https://gcc.gnu.org/viewcvs?rev=265518&root=gcc&view=rev
Log:
2018-10-26 Richard Biener <rguenther@suse.de>
PR testsuite/87754
* g++.dg/lto/odr-1_0.C: Fix pattern.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/lto/odr-1_0.C
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Subject: [Bug bootstrap/87741] Don't build readline/libreadline.a in GDB, when --with-system-readline is supplied
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--- Comment #2 from ДилÑн Палаузов <dilyan.palauzov at aegee dot org> ---
Created attachment 44905
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44905&action=edit
Why don’t the GCC mailservers accept my email to gcc-pathces?
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Subject: [Bug other/87755] [9 regression] ERROR: couldn't compile regular expression pattern: quantifier operand invalid
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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Resolution|--- |FIXED
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed with r265518.
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Subject: [Bug lto/87754] [9 regression] ICE in odr_types_equivalent_p, at ipa-devirt.c:1250
Date: Fri, 26 Oct 2018 07:21:00 -0000
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--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
I've fixed the TCL issue, now the testcase FAILs:
FAIL: g++.dg/lto/odr-1 (test for LTO warnings, odr-1_0.C line 6)
FAIL: g++.dg/lto/odr-1 cp_lto_odr-1_0.o-cp_lto_odr-1_1.o link, -O0 -flto
-flto-partition=none -fuse-linker-plugin (internal compiler error)
FAIL: g++.dg/lto/odr-1 (test for LTO warnings, odr-1_0.C line 6)
FAIL: g++.dg/lto/odr-1 cp_lto_odr-1_0.o-cp_lto_odr-1_1.o link, -O2 -flto
-flto-partition=none -fuse-linker-plugin -fno-fat-lto-objects (internal
compiler error)
FAIL: g++.dg/lto/odr-1 (test for LTO warnings, odr-1_0.C line 6)
FAIL: g++.dg/lto/odr-1 cp_lto_odr-1_0.o-cp_lto_odr-1_1.o link, -O0 -flto
-flto-partition=1to1 -fno-use-linker-plugin (internal compiler error)
FAIL: g++.dg/lto/odr-1 (test for LTO warnings, odr-1_0.C line 6)
FAIL: g++.dg/lto/odr-1 cp_lto_odr-1_0.o-cp_lto_odr-1_1.o link, -O2 -flto
-flto-partition=1to1 -fno-use-linker-plugin (internal compiler error)
FAIL: g++.dg/lto/odr-1 (test for LTO warnings, odr-1_0.C line 6)
FAIL: g++.dg/lto/odr-1 cp_lto_odr-1_0.o-cp_lto_odr-1_1.o link, -O0 -flto
-fuse-linker-plugin -fno-fat-lto-objects (internal compiler error)
FAIL: g++.dg/lto/odr-1 (test for LTO warnings, odr-1_0.C line 6)
FAIL: g++.dg/lto/odr-1 cp_lto_odr-1_0.o-cp_lto_odr-1_1.o link, -O2 -flto
-fuse-linker-plugin (internal compiler error)
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Subject: [Bug driver/87758] --print-file-name= ignores -L
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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Last reconfirmed| |2018-10-26
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--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed - but it behaved this way since forever.
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Subject: [Bug testsuite/86158] [9 regression] gcc.c-torture/unsorted/dump-noaddr.c.*i.lto-stream-out fails starting with 261546
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--- Comment #12 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Fri Oct 26 07:23:33 2018
New Revision: 265521
URL: https://gcc.gnu.org/viewcvs?rev=265521&root=gcc&view=rev
Log:
Relax hash function to match equals function behavior (PR testsuite/86158).
2018-10-26 Martin Liska <mliska@suse.cz>
PR testsuite/86158
* ipa-prop.c (struct ipa_vr_ggc_hash_traits): Hash with
addr_expr and not with pointers.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ipa-prop.c
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Subject: [Bug rtl-optimization/87759] [8/9 Regression] ICE in lra_assign, at lra-assigns.c:1624, or ICE: Maximum number of LRA assignment passes is achieved (30), or compile-time hog
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----------------------------------------------------------------------------
Version|unknown |9.0
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Subject: [Bug c++/87760] Unable to delete overloads of std::memset on arm
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----------------------------------------------------------------------------
Keywords| |rejects-valid
Target| |arm
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I can only guess that somehow std::size_t is int?!
Can you reproduce it with a simple
void foo (int, std::size_t);
void foo (std::size_t, int) = delete;
that is, avoiding 'memset' and/or the std namespace? Eventually
namespace bar {
using ::foo;
}
to mimic what cstring does for memset?
>From gcc-bugs-return-618914-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 07:30:06 2018
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Subject: [Bug rtl-optimization/87761] [9 regression][MIPS] New FAIL: gcc.target/mips/fix-r4000-10.c -O1 start with r265398
Date: Fri, 26 Oct 2018 07:30:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Target Milestone|--- |9.0
>From gcc-bugs-return-618915-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 07:39:44 2018
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Subject: [Bug tree-optimization/87105] Autovectorization [X86, SSE2, AVX2, DoublePrecision]
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--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Oct 26 07:38:59 2018
New Revision: 265522
URL: https://gcc.gnu.org/viewcvs?rev=265522&root=gcc&view=rev
Log:
2018-10-26 Richard Biener <rguenther@suse.de>
PR tree-optimization/87105
* tree-vectorizer.h (_slp_tree::refcnt): New member.
* tree-vect-slp.c (vect_free_slp_tree): Decrement and honor
refcnt.
(vect_create_new_slp_node): Initialize refcnt to one.
(bst_traits): Move.
(scalar_stmts_set_t, bst_fail): Remove.
(vect_build_slp_tree_2): Add bst_map argument and adjust calls.
(vect_build_slp_tree): Add bst_map argument and lookup
already created SLP nodes.
(vect_print_slp_tree): Handle a SLP graph, print SLP node
addresses.
(vect_slp_rearrange_stmts): Handle a SLP graph.
(vect_analyze_slp_instance): Adjust and free SLP nodes from
the CSE map. Fix indenting.
(vect_schedule_slp_instance): Add short-cut.
* g++.dg/vect/slp-pr87105.cc: Adjust.
* gcc.dg/torture/20181024-1.c: New testcase.
* g++.dg/opt/20181025-1.C: Likewise.
Added:
trunk/gcc/testsuite/g++.dg/opt/20181025-1.C
trunk/gcc/testsuite/gcc.dg/torture/20181024-1.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/vect/slp-pr87105.cc
trunk/gcc/tree-vect-slp.c
trunk/gcc/tree-vectorizer.h
>From gcc-bugs-return-618916-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 07:41:41 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/87759] [8/9 Regression] ICE in lra_assign, at lra-assigns.c:1624, or ICE: Maximum number of LRA assignment passes is achieved (30), or compile-time hog
Date: Fri, 26 Oct 2018 07:41:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-26
CC| |marxin at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
1: Confirmed, the ICE started with r255395 which is probably just an exposure.
>From gcc-bugs-return-618917-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 07:46:21 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug lto/87754] [9 regression] ICE in odr_types_equivalent_p, at ipa-devirt.c:1250
Date: Fri, 26 Oct 2018 07:46:00 -0000
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--- Comment #6 from Jan Hubicka <hubicka at ucw dot cz> ---
Hi,
this patch fixes the ICE as well as the template. I will commit it after LTO
bootstrap converges.
Honza
* ipa-devirt.c (odr_subtypes_equivalent_p): Fix recursion.
(warn_types_mismatch): Fix walk of DECL_NAME.
(odr_types_equivalent_p): Fix overactive assert.
* lto/lto-symtab.c (lto_symtab_merge_decls_2): Fix extra space.
* g++.dg/lto/ldr-1_0.C: Fix template.
* g++.dg/lto/ldr-1_1.C: Fix template.
Index: ipa-devirt.c
===================================================================
--- ipa-devirt.c (revision 265519)
+++ ipa-devirt.c (working copy)
@@ -719,9 +719,10 @@ odr_subtypes_equivalent_p (tree t1, tree
}
if (visited->add (pair))
return true;
- if (odr_types_equivalent_p (TYPE_MAIN_VARIANT (t1), TYPE_MAIN_VARIANT (t2),
- false, NULL, visited, loc1, loc2)
- && !type_variants_equivalent_p (t1, t2, warn, warned))
+ if (!odr_types_equivalent_p (TYPE_MAIN_VARIANT (t1), TYPE_MAIN_VARIANT (t2),
+ false, NULL, visited, loc1, loc2))
+ return false;
+ if (!type_variants_equivalent_p (t1, t2, warn, warned))
return false;
return true;
}
@@ -1138,7 +1139,7 @@ warn_types_mismatch (tree t1, tree t2, l
if (TREE_CODE (n1) == TYPE_DECL)
n1 = DECL_NAME (n1);
if (TREE_CODE (n2) == TYPE_DECL)
- n1 = DECL_NAME (n2);
+ n2 = DECL_NAME (n2);
/* Most of the time, the type names will match, do not be unnecesarily
verbose. */
if (IDENTIFIER_POINTER (n1) != IDENTIFIER_POINTER (n2))
@@ -1292,10 +1293,6 @@ odr_types_equivalent_p (tree t1, tree t2
/* Check first for the obvious case of pointer identity. */
if (t1 == t2)
return true;
- gcc_assert (!type_with_linkage_p (TYPE_MAIN_VARIANT (t1))
- || !type_in_anonymous_namespace_p (TYPE_MAIN_VARIANT (t1)));
- gcc_assert (!type_with_linkage_p (TYPE_MAIN_VARIANT (t2))
- || !type_in_anonymous_namespace_p (TYPE_MAIN_VARIANT (t2)));
/* Can't be the same type if the types don't have the same code. */
if (TREE_CODE (t1) != TREE_CODE (t2))
Index: lto/lto-symtab.c
===================================================================
--- lto/lto-symtab.c (revision 265517)
+++ lto/lto-symtab.c (working copy)
@@ -698,7 +698,7 @@ lto_symtab_merge_decls_2 (symtab_node *f
if (level & 2)
diag = warning_at (DECL_SOURCE_LOCATION (decl),
OPT_Wodr,
- "%qD violates the C++ One Definition Rule ",
+ "%qD violates the C++ One Definition Rule",
decl);
if (!diag && (level & 1))
diag = warning_at (DECL_SOURCE_LOCATION (decl),
Index: testsuite/g++.dg/lto/odr-1_0.C
===================================================================
--- testsuite/g++.dg/lto/odr-1_0.C (revision 265517)
+++ testsuite/g++.dg/lto/odr-1_0.C (working copy)
@@ -3,6 +3,6 @@
struct a { // { dg-lto-warning "8: type 'struct a' violates the C\\+\\+ One
Definition Rule" }
struct b *ptr; // { dg-lto-message "13: the first difference of
corresponding definitions is field 'ptr'" }
};
-void test(struct a *) // { dg-lto-warning "6: warning: 'test' violates the C++
One Definition Rule" }
+void test(struct a *)
{
}
Index: testsuite/g++.dg/lto/odr-1_1.C
===================================================================
--- testsuite/g++.dg/lto/odr-1_1.C (revision 265517)
+++ testsuite/g++.dg/lto/odr-1_1.C (working copy)
@@ -4,7 +4,7 @@ namespace {
struct a {
struct b *ptr;
};
-void test(struct a *);
+void test(struct a *); // { dg-lto-warning "6: 'test' violates the C\\+\\+ One
Definition Rule" }
int
main(void)
{
>From gcc-bugs-return-618918-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 08:01:45 2018
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Subject: [Bug tree-optimization/87105] Autovectorization [X86, SSE2, AVX2, DoublePrecision]
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed. There's the redundant store left, the IPA SRA issue, but everything is
vectorized now:
_Z16quadBoundingBoxAPK5PointR3Box:
.LFB1125:
.cfi_startproc
vmovupd (%rdi), %xmm1
vmovupd (%rdi), %xmm7
vminpd 32(%rdi), %xmm1, %xmm4
vmaxpd 32(%rdi), %xmm7, %xmm7
vmovups %xmm4, (%rsi)
vmovups %xmm7, 16(%rsi)
vmovupd 16(%rdi), %xmm2
vmovupd (%rdi), %xmm6
vmovupd 32(%rdi), %xmm1
vaddpd %xmm2, %xmm2, %xmm5
vsubpd %xmm2, %xmm6, %xmm3
vaddpd %xmm6, %xmm1, %xmm0
vsubpd %xmm5, %xmm0, %xmm0
vmovapd .LC0(%rip), %xmm5
vdivpd %xmm0, %xmm3, %xmm3
vxorpd %xmm0, %xmm0, %xmm0
vmaxpd %xmm0, %xmm3, %xmm3
vminpd %xmm5, %xmm3, %xmm3
vsubpd %xmm3, %xmm5, %xmm5
vmulpd %xmm3, %xmm1, %xmm0
vmulpd %xmm5, %xmm6, %xmm6
vmulpd %xmm5, %xmm2, %xmm1
vmulpd %xmm3, %xmm2, %xmm2
vaddpd %xmm1, %xmm0, %xmm0
vaddpd %xmm6, %xmm2, %xmm2
vmulpd %xmm3, %xmm0, %xmm0
vmulpd %xmm5, %xmm2, %xmm2
vaddpd %xmm2, %xmm0, %xmm0
vminpd %xmm0, %xmm4, %xmm4
vmaxpd %xmm0, %xmm7, %xmm0
vmovups %xmm4, (%rsi)
vmovups %xmm0, 16(%rsi)
ret
>From gcc-bugs-return-618919-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 08:01:50 2018
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Subject: [Bug tree-optimization/53947] [meta-bug] vectorizer missed-optimizations
Date: Fri, 26 Oct 2018 08:01:00 -0000
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Bug 53947 depends on bug 87105, which changed state.
Bug 87105 Summary: Autovectorization [X86, SSE2, AVX2, DoublePrecision]
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87105
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
>From gcc-bugs-return-618920-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 08:13:55 2018
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Subject: [Bug rtl-optimization/87761] [9 regression][MIPS] New FAIL: gcc.target/mips/fix-r4000-10.c -O1 start with r265398
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--- Comment #2 from Paul Hua <paul.hua.gm at gmail dot com> ---
and and new fails:
716 FAIL: gcc.target/mips/octeon-exts-3.c -O2 scan-assembler-times
\\texts\\t 3
717 FAIL: gcc.target/mips/octeon-exts-3.c -O2 -flto -fno-use-linker-plugin
-flto-partition=none scan-assembler-times \\texts\\t 3
718 FAIL: gcc.target/mips/octeon-exts-3.c -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects scan-assembler-times \\texts\\t 3
719 FAIL: gcc.target/mips/octeon-exts-3.c -O3 -g scan-assembler-times
\\texts\\t 3
720 FAIL: gcc.target/mips/octeon-exts-3.c -Os scan-assembler-times
\\texts\\t 3
$cat octeon-exts-3.i
# 1
"/home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.target/mips/octeon-exts-3.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 1 "<command-line>" 2
# 1
"/home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.target/mips/octeon-exts-3.c"
struct foo
{
unsigned long long a:10;
unsigned long long b:32;
unsigned long long c:22;
};
__attribute__((nomips16)) unsigned
f (struct foo s)
{
return s.b;
}
struct bar
{
unsigned long long a:15;
unsigned long long b:48;
unsigned long long c:1;
};
__attribute__((nomips16)) int
g (struct bar s)
{
return (int) s.b;
}
__attribute__((nomips16)) int
h (int i)
{
return (i << 4) >> 24;
}
./gcc/cc1 -fpreprocessed octeon-exts-3.i -mel -quiet -dumpbase octeon-exts-3.c
-march=octeon -mgp64 -mno-micromips -mabi=64 -mllsc -mips64r2 -mno-shared
-auxbase-strip octeon-exts-3.s -O2 -version -fdiagnostics-color=never
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-ffat-lto-objects -fno-ident -o octeon-exts-3.s -mno-abicalls
good :
h:
.frame $sp,0,$31 # vars= 0, regs= 0/0, args= 0, gp= 0
.mask 0x00000000,0
.fmask 0x00000000,0
.set noreorder
.set nomacro
jr $31
exts $2,$4,20,7
.set macro
.set reorder
bad:
h:
.frame $sp,0,$31 # vars= 0, regs= 0/0, args= 0, gp= 0
.mask 0x00000000,0
.fmask 0x00000000,0
sll $2,$4,4
.set noreorder
.set nomacro
jr $31
sra $2,$2,24
.set macro
.set reorder
>From gcc-bugs-return-618921-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 08:28:51 2018
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--- Comment #1 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
Caused by r265490. Ilya please have a look.
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--- Comment #4 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
-
>From gcc-bugs-return-618924-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 09:13:54 2018
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Subject: [Bug c++/87760] Unable to delete overloads of std::memset on arm
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--- Comment #2 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
I think this must be some issue with the compiler explorer installation.
My native AArch64 box compiles your testcase without problems (gcc-7.3).
It's completely perverse that size_t would be an int type, as the ABI requires
an unsigned long.
Also note that arm64 (correctly, AArch64) != arm; they're separate compilers.
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Subject: [Bug c++/87760] Unable to delete overloads of std::memset on arm
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--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This is already fixed in gcc-7.
Reduced testcase:
extern "C" void* memset(void*, int, long unsigned int);
namespace std{
using ::memset;
using size_t = decltype(sizeof(0));
void* memset(void*, std::size_t count, int ch) = delete;
}
struct foo{ // POD
int a;
int* b;
char c;
};
int main() {
foo b[10];
std::memset(&b, 0, sizeof b);
std::memset(&b, 0u, sizeof b);
}
GCC 6 says:
memset.cc:6:9: error: deleted definition of 'void* std::memset(void*,
std::size_t, int)'
void* memset(void*, std::size_t count, int ch) = delete;
^~~~~~
<built-in>: note: previous declaration of 'void* std::memset(void*, int, long
unsigned int)'
But GCC 7 and later accept it.
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Subject: [Bug c++/87760] Unable to delete overloads of std::memset on arm
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--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It was fixed by r242662 for PR c++/71973
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Subject: [Bug c++/87760] Unable to delete overloads of std::memset on arm
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So changing to fixed. gcc-6 has just been frozen for the final release.
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Subject: [Bug bootstrap/87741] Don't build readline/libreadline.a in GDB, when --with-system-readline is supplied
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--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
https://gcc.gnu.org/lists.html#policies
The mailing lists reject emails with MIME types like text/html or
mixed/multipart, they only accept plain text.
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From: "dilyan.palauzov at aegee dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug bootstrap/87741] Don't build readline/libreadline.a in GDB, when --with-system-readline is supplied
Date: Fri, 26 Oct 2018 10:01:00 -0000
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--- Comment #4 from ДилÑн Палаузов <dilyan.palauzov at aegee dot org> ---
The mail I send has only text/plain MIME part. Moreover, the mail was not
permanently rejected.
I want to know why the mail server says "Retry sending later".
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Subject: [Bug target/79262] [6/7/8/9 Regression] load gap with store gap causing performance regression in 462.libquantum
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/83588] [6/7 Regression] struct with two flexible arrays causes an internal compiler error
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/83962] [6/7 Regression] ICE: verify_flow_info failed (too many outgoing branch edges from bb 8)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618938-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:06:51 2018
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Subject: [Bug c++/83806] [6/7 Regression] Spurious -Wunused-but-set-parameter with nullptr
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/80491] [6/7 Regression] Compiler regression for long-add case.
Date: Fri, 26 Oct 2018 10:07:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618948-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:08:44 2018
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Subject: [Bug c++/80947] [6/7 Regression] Different visibility for the lambda and its capture list members with -fvisibility=hidden
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618943-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:07:36 2018
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Subject: [Bug tree-optimization/51017] [6/7/8/9 Regression] GCC performance regression (vs. 4.4/4.5), PRE/LIM increase register pressure too much
Date: Fri, 26 Oct 2018 10:07:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #27 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618940-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:07:13 2018
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Subject: [Bug middle-end/70359] [6/7/8/9 Regression] Code size increase for x86/ARM/others compared to gcc-5.3.0
Date: Fri, 26 Oct 2018 10:07:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #46 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/83712] [6/7 Regression] "Unable to find a register to spill" when compiling for thumb1
Date: Fri, 26 Oct 2018 10:07:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/82286] [6/7 Regression] Wrong array subscript is above array bounds
Date: Fri, 26 Oct 2018 10:07:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618937-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:06:38 2018
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Subject: [Bug c++/87072] [6/7 Regression] g++6.2.0 false warning: array subscript is above array bounds, with misleading line number
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84333] [6/7 Regression] ICE with ternary operator in template function
Date: Fri, 26 Oct 2018 10:07:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/80451] [6/7 Regression] return implicit type conversion to std::experimental::optional does not compile
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618942-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:07:32 2018
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Subject: [Bug c/86617] [6/7 Regression] Volatile qualifier is ignored sometimes for unsigned char
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/84136] [6/7 Regression] ICE with goto to an && label in another function
Date: Fri, 26 Oct 2018 10:08:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618946-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:08:14 2018
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Subject: [Bug middle-end/87647] [6/7/8/9 Regression] ICE on valid code in decode_addr_const, at varasm.c:2958
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/87246] [6/7/8/9 Regression] ICE in decompose_normal_address, at rtlanal.c:6379
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/81917] [6/7 Regression] internal compiler error: in finish_member_declaration, at cp/semantics.c:3004
Date: Fri, 26 Oct 2018 10:08:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/57193] [6/7 Regression] suboptimal register allocation for SSE registers
Date: Fri, 26 Oct 2018 10:08:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/70164] [6/7/8/9 Regression] Code/performance regression due to poor register allocation on Cortex-M0
Date: Fri, 26 Oct 2018 10:08:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #21 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84642] [6/7 Regression] ICE: segfault reading through NULL current_template_parms in synthesize_implicit_template_parm
Date: Fri, 26 Oct 2018 10:08:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug ipa/65797] [6/7/8/9 regression] IPA ICF causes function to be emitted with no debug line info
Date: Fri, 26 Oct 2018 10:08:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/83204] [6/7 Regression] c++ -std=c++14 ICE in maybe_undo_parenthesized_ref, at cp/semantics.c:1694
Date: Fri, 26 Oct 2018 10:09:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug ipa/82256] [6/7 Regression] clones created by create_version_clone_with_body are not observable to insertion hooks
Date: Fri, 26 Oct 2018 10:09:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/45273] [6/7/8/9 Regression] The compiler depends on the host double (-fprofile-corection only)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/83502] [6/7/8/9 Regression] bogus -Wattributes for always_inline and noinline on function template specialization
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/28831] [6/7/8/9 Regression] Aggregate copy not elided when using a return value as a pass-by-value parameter
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #33 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/87702] [6/7/8/9 Regression] Segfault in glibc if compiled with -march=amdfam10 -O2 (x86)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/71251] [6/7 regression] ICE on invalid code, with unusual template name
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/82025] [6/7 Regression] ICE: in finish_expr_stmt, at cp/semantics.c:678
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/74762] [6/7/8/9 Regression] missing uninitialized warning (C++, parenthesized expr, TREE_NO_WARNING)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/57955] [6/7/8/9 Regression] Uniquization of constants reduces alignment of initializers
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84979] [6/7 Regression] ICE with auto as template parameter and -fconcepts
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/87148] [6/7/8/9 Regression] backward compatibility issue to take char [] as incomplete type
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/69224] [6/7 Regression] -Warray-bounds false positive with -O3 and struct pointer parameter
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/86905] [6/7/8/9 Regression] g++ ICE on valid code: verify_cgraph_node failed
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/70341] [6/7/8/9 Regression] cost model for addresses is incorrect, slsr is using reg + reg + CST for arm
Date: Fri, 26 Oct 2018 10:10:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/68028] [6/7/8/9 regression] Compilation error "lto1: error: target attribute or pragma changes single precision floating point" with LTO on PowerPC
Date: Fri, 26 Oct 2018 10:10:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/69702] [6/7/8/9 Regression] excessive stack usage with -fprofile-arcs, LIM store motion lacks a register pressure aware cost model
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618962-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:12:03 2018
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Subject: [Bug ipa/62051] [6/7/8/9 Regression] Undefined reference to vtable with -O2 and -fdevirtualize-speculatively
Date: Fri, 26 Oct 2018 10:11:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/84280] [6/7/8/9 Regression] Performance regression in g++-7 with Eigen for non-AVX2 CPUs
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618973-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:14:51 2018
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Subject: [Bug c++/69564] [6/7/8/9 Regression] lto and/or C++ make scimark2 LU slower
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #37 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618968-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:13:32 2018
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Subject: [Bug c++/85062] [6/7 Regression] ICE on alignas with parameter pack
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618982-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:17:29 2018
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Subject: [Bug tree-optimization/68823] [6/7 Regression][graphite] tramp3d-v4 compiled with -floop-nest-optimize crashes
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/71662] [6/7 Regression][DR 1485] ICE on invalid C++11 code with unqualified name look up: in tsubst_copy, at cp/pt.c:14010
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug inline-asm/85030] [6/7 Regression] internal compiler error: Floating point exception (validate_subreg())
Date: Fri, 26 Oct 2018 10:11:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/81019] [6/7 Regression] wrong code with -O -fno-tree-ccp
Date: Fri, 26 Oct 2018 10:11:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84221] [6/7 Regression] spurious -Wunused warning on a variable of a template type declared unused
Date: Fri, 26 Oct 2018 10:11:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/80135] [6/7 Regression] ICE in output_constructor_regular_field, at varasm.c:4968
Date: Fri, 26 Oct 2018 10:11:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug driver/70936] [6/7/8/9 Regression] Hard-coded C++ header paths and relocation problem
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/85593] [6/7/8/9 Regression] GCC on ARM allocates R3 for local variable when calling naked function with O2 optimizations enabled
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug inline-asm/84683] [6/7 Regression] internal compiler error: in move_for_stack_reg, at reg-stack.c:1173
Date: Fri, 26 Oct 2018 10:12:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/80907] [6/7 Regression] False positive: "warning: array subscript is above array bounds"
Date: Fri, 26 Oct 2018 10:12:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/64928] [6/7/8/9 Regression] Inordinate cpu time and memory usage in "phase opt and generate" with -ftest-coverage -fprofile-arcs
Date: Fri, 26 Oct 2018 10:12:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #26 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/80960] [6/7/8/9 Regression] Huge memory use when compiling a very large test case
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84540] [6/7 Regression] ICE with alignas in variadic template
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/85027] [6/7 Regression] ICE on invalid C++ code: in instantiate_type, at cp/class.c:8062
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/80693] [6/7 Regression] wrong code with -O -fno-tree-coalesce-vars
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/84328] [6/7/8/9 Regression] -finline-small-functions and inline keyword lead to slowdown since version 6
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug debug/65821] [6/7 regression] incorrect debug line # info for main
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/58479] [6/7/8/9 Regression] slow var-tracking on x86_64-linux at -O1 (and above) with -g, but checking disabled
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/81922] [6/7 Regression] ICE in output_constructor_regular_field, at varasm.c:5030
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c/77754] [6/7/8/9 Regression] internal compiler error : tree code 'call_expr' is not supported in LTO streams
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/63311] [6/7/8/9 Regression] -O1 optimization introduces valgrind warning
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/38785] [6/7/8/9 Regression] huge performance regression on EEMBC bitmnp01
Date: Fri, 26 Oct 2018 10:13:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #51 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/83911] [6/7 Regression] ICE with target attribute on constructor in gimplify_expr at gimplify.c:11321
Date: Fri, 26 Oct 2018 10:13:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/79937] [6/7 Regression] ICE in replace_placeholders_r
Date: Fri, 26 Oct 2018 10:14:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #24 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/70023] [6/7 Regression] ICE: in assign_by_spills, at lra-assigns.c:1417/8 with -fschedule-insns
Date: Fri, 26 Oct 2018 10:14:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/85242] [6/7 Regression] ICE with invalid template parameter
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/87436] [6/7/8/9 Regression] G++ produces >300MB .rodata section to initialize struct with big array
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-618998-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:21:00 2018
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Subject: [Bug rtl-optimization/55278] [6/7/8/9 Regression] Botan performance regressions, other compilers generate better code than gcc
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/79593] [6/7/8/9 Regression] Poor/Worse code generation for FPU on versions after 6
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/86917] [6/7/8/9 Regression] ICE in verify_ctor_sanity, at cp/constexpr.c:2798
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/84014] [6/7 Regression] ICE in setup_min_max_allocno_live_range_point, at ira-build.c:2762
Date: Fri, 26 Oct 2018 10:16:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/59967] [6/7/8/9 Regression] Performance regression from 4.7.x to 4.8.x (loop not unrolled)
Date: Fri, 26 Oct 2018 10:16:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug plugins/82371] [6/7 Regression] Cross-compiling GCC fails when build platform has fread_unlocked but host platform doesn't
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/29256] [6/7/8/9 regression] loop performance regression
Date: Fri, 26 Oct 2018 10:16:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #67 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/82961] [6/7 Regression] ICE in dwarf2out.c: deferred_asm_name != NULL
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/84301] [6/7 Regression] ICE in create_pre_exit, at mode-switching.c:451
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/86569] [6/7/8 Regression] -Wnonnull-compare affects code generation since r233684
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/87610] [6/7 Regression] wrong-code with restrict
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84729] [6/7 Regression] internal compiler error: verify_gimple failed
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84349] [6/7 Regression] ICE with auto in function cast
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug ipa/79966] [6/7 Regression] run time more than twice slower when using -fipa-cp-clone
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug sanitizer/81281] [6/7 Regression] UBSAN: false positive, dropped promotion to long type.
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84942] [6/7 Regression] internal compiler error: in fold_convert_const_int_from_real, at fold-const.c:2011
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/67288] [6/7/8/9 regression] non optimal simple function (useless additional shift/remove/shift/add)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/81423] [6/7 Regression] Wrong code at -O2
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/83796] [6/7 Regression] Abstract classes allowed to be instantiated when initialised as default parameter to function or constructor
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/80283] [6/7/8/9 Regression] bad SIMD register allocation
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #26 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/86823] [6/7/8/9 Regression] private member template struct/class is publicly accessible
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug ipa/80899] [6/7/8/9 Regression] Devirtualization causes incorrect code generation with placement new in some cases
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/53533] [6/7/8/9 regression] vectorization causes loop unrolling test slowdown as measured by Adobe's C++Benchmark
Date: Fri, 26 Oct 2018 10:18:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #34 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619030-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:27:12 2018
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Subject: [Bug inline-asm/84680] [6/7/8/9 Regression] internal compiler error: Max. number of generated reload insns per insn is achieved (90)
Date: Fri, 26 Oct 2018 10:18:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/85726] [6/7/8/9 Regression] div C1 to div C2 match.pd suboptimization
Date: Fri, 26 Oct 2018 10:18:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619046-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:29:47 2018
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Subject: [Bug rtl-optimization/81020] [6/7 Regression] wrong code with -O -fno-tree-bit-ccp -fno-tree-coalesce-vars -fno-tree-vrp
Date: Fri, 26 Oct 2018 10:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619006-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:22:38 2018
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Subject: [Bug c++/85240] [6/7 Regression] ICE with function without deduced return type
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/49442] [6/7/8/9 Regression] Misaligned store support pessimization
Date: Fri, 26 Oct 2018 10:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619035-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:28:06 2018
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Subject: [Bug debug/80646] [6/7 Regression] wrong type info for extern inline function when compiling Emacs
Date: Fri, 26 Oct 2018 10:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug lto/70929] [6/7/8/9 regression] Cross-module inlining for functions having argument passed by reference is no longer working.
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619041-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:28:52 2018
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Subject: [Bug rtl-optimization/83913] [6/7 Regression] Compile time and memory hog w/ selective scheduling
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/50417] [6/7/8/9 regression]: memcpy with known alignment
Date: Fri, 26 Oct 2018 10:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #29 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619045-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:29:43 2018
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Subject: [Bug c++/84318] [6/7/8/9 Regression] attribute deprecated on function templates different than class templates
Date: Fri, 26 Oct 2018 10:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/67153] [6/7/8/9 Regression] integer optimizations 53% slower than std::bitset<>
Date: Fri, 26 Oct 2018 10:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #27 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/85803] [6/7/8/9 Regression] DSE removes live global store
Date: Fri, 26 Oct 2018 10:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/86828] [6/7 Regression] wrong-code bug with "-march=knl -Ofast" (invalid memory reference)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/69633] [6/7/8/9 Regression] Redundant move is generated after r228097
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c/85870] [6/7/8/9 Regression][LTO1] ICE in linemap_line_start, at libcpp/line-map.c:794
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/61118] [6/7/8/9 Regression] Indirect call generated for pthread_cleanup_push with constant cleanup function
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #24 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/38134] [6/7/8/9 Regression] speed regression with many loop invariants
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #30 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/85627] [6/7 Regression] ICE in update_phi_components in tree-complex.c
Date: Fri, 26 Oct 2018 10:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug inline-asm/84985] [6/7 Regression] ICE in match_reload, at lra-constraints.c:1068
Date: Fri, 26 Oct 2018 10:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/33699] [6/7/8/9 regression] missing optimization on const addr area store
Date: Fri, 26 Oct 2018 10:20:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #27 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/86669] [6/7/8/9 regression] Complete object constructor clone omits length for a c++11 braced initialiser
Date: Fri, 26 Oct 2018 10:20:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/80463] [6/7 Regression] ICE with -fselective-scheduling2 and -fvar-tracking-assignments
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/83580] [6/7 Regression] Wrong code caused by vectorization
Date: Fri, 26 Oct 2018 10:20:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/52285] [6/7/8/9 Regression] libgcrypt _gcry_burn_stack slowdown
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/87665] [6/7 Regression] gcc HEAD (svn: 265340) breaks elements on resize
Date: Fri, 26 Oct 2018 10:20:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/86953] [6/7/8/9 Regression] compiler crashes with constexpr operator== and specific struct (cxx_eval_bit_field_ref, at cp/constexpr.c:2704)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/21485] [6/7/8/9 Regression] missed load PRE, PRE makes i?86/7/8/9 suck
Date: Fri, 26 Oct 2018 10:20:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #66 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/86159] [6/7/8 Regression] g++ ICE at -O1 and above on valid code: incorrect type of vector CONSTRUCTOR elements
Date: Fri, 26 Oct 2018 10:20:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug lto/81406] [6/7 Regression] ICE in check_die, at dwarf2out.c:6185
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c/82167] [6/7 Regression] Segmentation fault when dereferencing the address of an array argument
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84820] [6/7 Regression] Bogus pointer-to-member accepted within template
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/87609] [6/7/8/9 Regression] miscompilation with restrict and loop
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/63155] [6/7 Regression] memory hog
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #52 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/81897] [6/7 Regression] spurious -Wmaybe-uninitialized warning
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/59371] [6/7/8/9 Regression] Performance regression in GCC 4.8/9 and later versions.
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug libstdc++/82739] [6/7/8/9 Regression] Sort is 30% slower compared to gcc44 on presorted array
Date: Fri, 26 Oct 2018 10:21:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/84034] [6/7 Regression] incomplete warning message with dos line endings
Date: Fri, 26 Oct 2018 10:21:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84610] [6/7 Regression] ICE in synthesize_implicit_template_parm, at cp/parser.c:38843
Date: Fri, 26 Oct 2018 10:21:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619062-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:33:17 2018
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Subject: [Bug c++/84647] [6/7 Regression] ICE: segfault with NULL "from" in standard_conversion()
Date: Fri, 26 Oct 2018 10:21:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c/81566] [6/7 Regression] invalid attribute aligned accepted on functions
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug libstdc++/78420] [6/7 Regression] std::less<T*> is not a total order with -O2 enabled
Date: Fri, 26 Oct 2018 10:22:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #33 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/47344] [6/7/8/9 Regression][meta-bug] GCC gets slower and uses more memory
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619065-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:33:44 2018
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Subject: [Bug target/86973] [6/7/8/9 Regression] ICE in expand_call, at calls.c:4217
Date: Fri, 26 Oct 2018 10:22:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84789] [6/7 Regression] ICE with broken variable declaration in template class
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/86986] [6/7/8/9 Regression] Unexpected errors for template parameter pack in a template template parameter
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/84552] [6/7 Regression] Compile time hog w/ -O2 -floop-nest-optimize -fno-tree-copy-prop -fno-tree-fre -fno-tree-loop-ivcanon
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/85879] [6/7/8 Regression] ICE in expand_debug_locations, at cfgexpand.c:5405
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84813] [6/7 Regression] internal compiler error: Segmentation fault with lambdas and constexpr variables
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug inline-asm/84677] [6/7 Regression] internal compiler error: in extract_constrain_insn, at recog.c:2205
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug ipa/85051] [6/7/8/9 Regression] ICE: in edge_badness, at ipa-inline.c:1035 with flattening recursive calls
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/21182] [6/7/8/9 Regression] gcc can use registers but uses stack instead
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #28 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/81740] [6/7/8/9 Regression] wrong code at -O3 in both 32-bit and 64-bit modes on x86_64-linux-gnu
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/84682] [6/7 Regression] internal compiler error: Segmentation fault (process_address_1)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619081-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:37:51 2018
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Subject: [Bug target/65162] [6/7/8/9 Regression][SH] Redundant tests when storing bswapped T bit result in unaligned mem
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84691] [6/7/8 Regression] internal compiler error: in poplevel_class, at cp/name-lookup.c:4430
Date: Fri, 26 Oct 2018 10:26:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/79652] [6/7 Regression] ICE on invalid c++ code in warn_extern_redeclared_static in cp/decl.c:1231
Date: Fri, 26 Oct 2018 10:26:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/47481] [6/7/8/9 Regression] spill failure with -O2 -msoft-float on Ada RTS
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/31130] [6/7/8/9 Regression] VRP no longer derives range for division after negation
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #29 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619085-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:38:19 2018
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Subject: [Bug c++/81032] [6/7 Regression] ICE with lambda and broken constexpr
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/64099] [6/7/8/9 Regression] ~15% runtime increase for fatigue.f90.
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619092-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:39:11 2018
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Subject: [Bug preprocessor/24976] [6/7/8/9 Regression] simple hexadecimal number and plus/minus and no space
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/85750] [6/7/8/9 Regression] Default initialization of derived type array missing
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug preprocessor/8270] [6/7/8/9 Regression] back-slash white space newline with comments, no warning
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #62 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c/12245] [6/7/8/9 regression] Uses lots of memory when compiling large initialized arrays
Date: Fri, 26 Oct 2018 10:27:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #65 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619094-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:39:23 2018
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Subject: [Bug fortran/84779] [6/7/8/9 Regression] Compiling gfortran.fortran-torture/execute/entry_4.f90 with -O1 or -Os and -fdefault-integer-8/9 gives an ICE
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619093-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:39:11 2018
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Subject: [Bug fortran/71860] [6/7/8/9 Regression] [OOP] ICE on pointing to null(mold), verify_gimple failed
Date: Fri, 26 Oct 2018 10:27:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/85510] [6/7/8/9 Regression] Linking error when accessing a coindexed variable inside an associate block
Date: Fri, 26 Oct 2018 10:27:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug testsuite/36443] [6/7/8/9 Regression]: HOSTCC doesn't work with installed gcc
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #64 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/18501] [6/7/8/9 Regression] Missing 'used uninitialized' warning (CCP)
Date: Fri, 26 Oct 2018 10:27:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #87 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619090-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:38:48 2018
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Subject: [Bug tree-optimization/68682] [6/7/8/9 Regression] [graphite] loop interchange no longer working after r227277
Date: Fri, 26 Oct 2018 10:27:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619104-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:41:20 2018
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Subject: [Bug testsuite/51097] [6/7/8/9 Regression] a lot of "FAIL: gcc.dg/vect" on i686/7/8/9 avx build 181167/8/9 to 181177
Date: Fri, 26 Oct 2018 10:28:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619106-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:41:31 2018
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Subject: [Bug c++/84705] [6/7/8 Regression] internal compiler error: in add_stmt, at cp/semantics.c:390
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619109-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:41:50 2018
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Subject: [Bug fortran/61765] [6/7/8/9 Regression] [F03] Rejects valid BIND(C) ENTRY
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/78006] [6/7 Regression] Segmentation fault with 'using' and generic lambda trailing return types
Date: Fri, 26 Oct 2018 10:28:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/66695] [6/7/8/9 Regression] [F03] ICE with binding-name equal to the name of a use-associated procedure
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84585] [6/7/8/9 Regression] internal compiler error: in get_local_decls, at cp/name-lookup.c:3654
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/68717] [6/7/8/9 Regression] New (bogus?) warnings when compiling some gfortran.dg tests with -flto after r231239
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/64792] [6/7/8/9 Regression][SH] movu.b movu.w not working
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619108-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:41:48 2018
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Subject: [Bug c/26154] [6/7/8/9 Regression] OpenMP extensions to the C language is not documented or doumented in the wrong spot
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #27 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619112-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:41:57 2018
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Subject: [Bug fortran/85544] [6/7/8/9 Regression] ICE in gfc_conv_scalarized_array_ref, at fortran/trans-array.c:3385
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619114-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:42:02 2018
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Subject: [Bug fortran/77703] [6/7/8/9 Regression] ICE on assignment to pointer function
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/71066] [6/7/8/9 Regression] ICE in set_loop_bounds, at fortran/trans-array.c:4680
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/78648] [6/7 Regression] ICE on invalid C++ code on x86_64-linux-gnu (Segmentation fault, contains_struct_check)
Date: Fri, 26 Oct 2018 10:29:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug ipa/70582] [6/7/8/9 regression] gcc.dg/attr-weakref-1.c FAILs
Date: Fri, 26 Oct 2018 10:29:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/79185] [6/7/8/9 Regression] register allocation in the addition of two 128/9 bit ints
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/63891] [6/7/8/9 regression] Failure of darwin-weakimport-3.c
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/79755] [6/7/8/9 Regression] ICE: segfault in cgraph_node::get, at cgraph.h:1261
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619120-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:42:12 2018
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Subject: [Bug target/80547] [6/7/8/9 Regression] nvptx back end ICE with OpenACC "reduction(OP:x)", "x = [...]"
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619119-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:42:10 2018
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Subject: [Bug fortran/82774] [6/7/8/9 Regression] Structure constructor and deferred type parameter character component
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/69580] [6/7/8/9 Regression] From 26/7/8/9 seconds to 10 minutes moving from gcc 5.3.1 to gcc 6.0.0
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619131-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:42:45 2018
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Subject: [Bug target/69639] [6/7/8/9 Regression] FAIL: gcc.c-torture/compile/limits-exprparen.c
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug rtl-optimization/71119] [6/7/8/9 Regression] ftoit instruction not emitted for double -> long bitcast
Date: Fri, 26 Oct 2018 10:31:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/14179] [6/7/8/9 Regression] out of memory while parsing array with many initializers
Date: Fri, 26 Oct 2018 10:31:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #78 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/79622] [6/7 Regression] Wrong code w/ -O2 -floop-nest-optimize
Date: Fri, 26 Oct 2018 10:31:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/18346] [6/7/8/9 regression] mmix-knuth-mmixware testsuite failure: gcc.dg/trampoline-1.c
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/60576] [6/7/8/9 Regression] FAIL: gfortran.dg/assumed_rank_7.f90
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #27 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84792] [6/7 Regression] ICE with broken typedef of a struct
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/79636] [6/7/8/9 Regression] ICE in assign_by_spills, at lra-assigns.c:1457
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/57048] [6/7/8/9 Regression] Handling of C_PTR and C_FUNPTR leads to reject valid
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619134-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:43:02 2018
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Subject: [Bug fortran/79524] [6/7/8/9 Regression] valgrind error for gcc/testsuite/gfortran.dg/fimplicit_none_2.f90
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/55181] [6/7/8/9 Regression] Expensive shift loop where a bit-testing instruction could be used
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/87597] [6/7/8/9 Regression] wrong result with matmul inlining
Date: Fri, 26 Oct 2018 10:32:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/20617] [6/7/8/9 Regression] shared SH libgcc is exporting too many symbols
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #39 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84972] [6/7 Regression] ICE: tree check: expected class 'type', have 'exceptional' (error_mark) in extended_tree, at tree.h:5545
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/71703] [6/7/8/9 Regression] [OOP] ICE in wide_int_to_tree, at tree.c:1488
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/59498] [DR 1430][6/7/8/9 Regression] Pack expansion error in template alias
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/70831] [6/7/8/9 Regression] FTBFS: Build fails with bootstrap-lto and profiledbootstrap
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/67679] [6/7/8/9 Regression] -Wunitialized reports on compiler-generated variables
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug debug/63572] [6/7/8/9 Regression] ICF breaks user debugging experience
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/85953] [6/7/8/9 Regression] ICE in fold_convert_loc, at fold-const.c:2370
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug debug/53118] [6/7/8/9 regression] -feliminate-dwarf2-dups is broken for C++
Date: Fri, 26 Oct 2018 10:33:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/24434] [6/7/8/9 Regression] get_varargs_alias_set returns 0 always
Date: Fri, 26 Oct 2018 10:33:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug libgcc/57221] [6/7/8/9 regression] libgcc symbol visibility changes break Android blobs
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619115-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:42:05 2018
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Subject: [Bug rtl-optimization/56451] [6/7/8/9 regression] Wrong code for gcc.c-torture/execute/941015-1.c on SH
Date: Fri, 26 Oct 2018 10:33:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/71723] [6/7/8/9 Regression] [F08] ICE on invalid pointer initialization
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619147-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:43:53 2018
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Subject: [Bug c++/79626] [6/7 Regression] ICE on invalid code in build_temp (call.c:6489)
Date: Fri, 26 Oct 2018 10:33:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619145-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:43:40 2018
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Subject: [Bug target/66171] [6/7/8/9 Regression]: gcc.target/cris/biap.c
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/85014] [6/7/8/9 Regression] internal compiler error: in lookup_base, at cp/search.c:185
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619141-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:43:21 2018
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Subject: [Bug preprocessor/20285] [6/7/8/9 Regression] gcc -E - < . gives a misleading error message
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/71342] [6/7/8/9 Regression][RL78] set1 / clr1 with !addr16 sometimes doesn't work
Date: Fri, 26 Oct 2018 10:33:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/64785] [6/7/8/9 Regression][SH] and|or|xor #imm not used
Date: Fri, 26 Oct 2018 10:33:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/57129] [6/7/8/9 Regression] Improve error message for conflicts between PROCEDURE and DERIVED.
Date: Fri, 26 Oct 2018 10:34:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c/21343] [6/7/8/9 Regression] incompatible internal linkage declarations in different scopes not diagnosed
Date: Fri, 26 Oct 2018 10:34:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c/79412] [6/7/8/9 Regression] ICE in fold_convert_loc, at fold-const.c:2239
Date: Fri, 26 Oct 2018 10:34:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/72714] [6/7/8/9 Regression] [Coarray] ICE in gfc_array_init_size, at fortran/trans-array.c:5235
Date: Fri, 26 Oct 2018 10:34:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/23868] [6/7/8/9 regression] builtin_apply uses wrong mode for multi-hard-register return values
Date: Fri, 26 Oct 2018 10:34:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #31 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/15596] [6/7/8/9 Regression] Missed optimization with bitfields with return value
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #30 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/85877] [6/7/8/9 Regression] ICE in fold_convert_loc, at fold-const.c:2449
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/54699] [6/7/8/9 Regression] [SH] gfortran.dg/class_array_9.f03 ICEs
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/66358] [6/7/8/9 Regression] [SH] ICE: in extract_constrain_insn, at recog.c:2232
Date: Fri, 26 Oct 2018 10:34:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #25 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/78865] [6/7/8/9 Regression] ICE in create_tmp_var, at gimple-expr.c:473
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/71861] [6/7/8/9 Regression] [F03] ICE in write_symbol(): bad module symbol
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/49826] [6/7/8/9 Regression] Symbols are not decorated with attribute stdcall and -mrtd
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/71706] [6/7/8/9 Regression] [Coarray] ICE on using sync images with integer(kind<>4), with -fcoarray=lib -fcheck=bounds
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/77362] [6/7 Regression] [graphite] ICE in sese_build_liveouts_use w/ -O2 -floop-nest-optimize
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug libgcc/59305] [6/7/8/9 Regression] gcc.dg/atomic/c11-atomic-exec-5.c fails with WARNING: program timed out on x86_64-apple-darwin13
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #31 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/39725] [6/7/8/9 Regression][cond-optab] MIPS pessimizations on floating-point
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/62207] [6/7/8/9 Regression] ICE: tree check: expected tree that contains 'decl minimal' structure, have 'overload' in tsubst_copy, at cp/pt.c
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/85249] [6/7/8/9 Regression] ICE with invalid default parameter
Date: Fri, 26 Oct 2018 10:35:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/62247] [6/7/8/9 Regression] FAIL: g++.dg/abi/anon3.C -std=c++98/9 scan-assembler .weak(_definition)
Date: Fri, 26 Oct 2018 10:35:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/69728] [6/7 Regression] internal compiler error: in outer_projection_mupa, at graphite-sese-to-poly.c:1175
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #24 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84676] [6/7/8/9 Regression] internal compiler error: Segmentation fault (build_new_op_1)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/65289] [6/7/8/9 regression] ICE when compiling libjpegturbo with -floop-nest-optimize
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/68226] [6/7/8/9 Regression] [OOP] ICE on assignment of pointer-valued function to allocatable
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/42954] [6/7/8/9 regression] TARGET_*_CPP_BUILTINS issues with gfortran
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #30 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/79485] [6/7/8/9 Regression] Bind(c) and module procedure renaming causes wrong procedure to be called
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84611] [6/7 Regression] ICE in operator[], at vec.h:826 (local_class_index())
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/79685] [6/7/8/9 Regression] ICE on valid code in gfc_match_structur_constructor
Date: Fri, 26 Oct 2018 10:35:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug preprocessor/24024] [6/7/8/9 Regression] gcc -E -C processes "\" incorrectly inside C comments
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/78645] [6/7/8/9 Regression] ICE on invalid code (Segmentation fault, cxx_eval_call_expression)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/81288] [6/7/8/9 Regression] ICE on 32-bit BE powerpcspe w/ -misel -O2 (-O3, -Ofast, -Os)
Date: Fri, 26 Oct 2018 10:35:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/44793] [6/7/8/9 Regression] libgcc does not include t-ppccomm on rtems
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84423] [6/7/8 Regression] [concepts] ICE with invalid using declaration
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug debug/47471] [6/7/8/9 Regression] stdarg functions extraneous too-early prologue end
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/71451] [6/7 Regression] ICE on invalid C++11 code on x86_64-linux-gnu: in dependent_type_p, at cp/pt.c:22599
Date: Fri, 26 Oct 2018 10:36:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/26241] [6/7/8/9 Regression] None of the IPA passes are documented in passes.texi
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/71464] [6/7 Regression] ICE on invalid code (with redeclared constructor) at -Os: Segmentation fault
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/65164] [6/7/8/9 Regression][SH] missed subc in integer sign function
Date: Fri, 26 Oct 2018 10:36:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84330] [6/7 Regression] [concepts] ICE with broken constraint
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/69455] [6/7/8/9 Regression] [F08] Assembler error(s) when using intrinsic modules in two BLOCK
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/65342] [6/7/8/9 Regression] FAIL: gfortran.dg/intrinsic_(un)?pack_1.f90 -O1 execution test on powerpc-apple-darwin9 after r210201
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #21 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/38059] [6/7/8/9 Regression] Compile time regression for gcc.dg/20020425-1.c
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/77746] [6/7/8/9 Regression] [F03] Wrong subroutine called, clash of specific procedure name and binding-name
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/50410] [6/7/8/9 Regression] ICE in record_reference
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #31 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/78518] [6/7/8/9 Regression] Warning format regression
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c/23144] [6/7/8/9 Regression] invalid parameter forward declarations not diagnosed
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/68009] [6/7/8/9 Regression] prototype for gfortran_runtime_error with inline matmul
Date: Fri, 26 Oct 2018 10:36:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug other/26966] [6/7/8/9 Regression] linking of C++/ObjC app fail on OpenBSD 3.9 due POSIX threading unresolved symbols
Date: Fri, 26 Oct 2018 10:36:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #30 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/18335] [6/7/8/9 regression] mmix-knuth-mmixware testsuite failure: gcc.dg/debug/debug-1.c and debug-2 xyzzy
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #21 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84939] [6/7/8/9 Regression] internal compiler error: in gimplify_expr, at gimplify.c:12382
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug go/59431] [6/7/8/9 regression] runtime FAILs on Solaris
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/61527] [6/7/8/9 Regression] [OOP] class/extends, multiple generic assignment, accept invalid
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/77871] [6/7/8/9 Regression] [Coarray] [OOP] ICE in gfc_get_caf_token_offset, at fortran/trans-expr.c:1981
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84630] [6/7 Regression] ICE: TYPE_NAME() used on error_mark_node in tsubst_lambda_expr, at cp/pt.c:17141
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/77522] [6/7 Regression] ICE on invalid code C++14 code: in tsubst_decl, at cp/pt.c:12447
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84661] [6/7/8/9 Regression] internal compiler error: Segmentation fault (strip_array_types())
Date: Fri, 26 Oct 2018 10:37:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/77872] [6/7/8/9 Regression] ICE in gfc_conv_descriptor_token, at fortran/trans-array.c:305
Date: Fri, 26 Oct 2018 10:37:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/70621] [6/7 Regression] ICE on invalid code at -O1 and above on x86_64-linux-gnu in record_reference, at cgraphbuild.c:64
Date: Fri, 26 Oct 2018 10:37:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/65381] [6/7/8/9 Regression] ICE during array result, assignment
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/66089] [6/7/8/9 Regression] elemental dependency mishandling when derived types are involved
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #24 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug ipa/66004] [6/7/8/9 Regression]: performance of 26_numerics/random/negative_binomial_distribution/operators/values.cc
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/59107] [6/7/8/9 Regression] Spurious "Type specified for intrinsic function 'command_argument_count' at (1) is ignored" under -Wsurprising.
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/34723] [6/7/8/9 Regression] Summing variable should be initialized to the first member before the loop
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug driver/25208] [6/7/8/9 Regression] two outputs and -MMD
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/79426] [6/7/8/9 Regression] fortran - internal compiler error: in fold_convert_loc, at fold-const.c:2251
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug target/46393] [6/7/8/9 Regression] m68k code size regression
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/68649] [6/7/8/9 Regression] note: code may be misoptimized unless -fno-strict-aliasing is used
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/71577] [6/7 regression] ICE on invalid C++11 code (with extra struct initializer): in digest_init_r, at cp/typeck2.c:1117
Date: Fri, 26 Oct 2018 10:37:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug ada/25844] [6/7/8/9 regression] ICE on overloaded renames
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/77518] [6/7/8/9 Regression] [Coarray] [OOP] ICE in gfc_advance_chain, at fortran/trans.c:58
Date: Fri, 26 Oct 2018 10:37:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/77371] [6/7/8/9 Regression] ICE in force_constant_size, at gimplify.c:671 (... and others)
Date: Fri, 26 Oct 2018 10:37:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/84006] [6/7/8/9 Regression] ICE in storage_size() with CLASS entity
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug fortran/85352] [6/7/8/9 Regression] Incorrect error diagnosed for dummy argument used in specification expression to subprogram with ENTRY
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug debug/61014] [6/7/8/9 Regression] gdb can't find symbol of derived data type array in nested subroutine
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug libstdc++/64132] [6/7/8/9 Regression] FAIL: 22_locale/numpunct/members/char/3.cc execution test
Date: Fri, 26 Oct 2018 10:37:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/71144] [6/7/8/9 Regression] isl_aff.c:1001: position out of bounds
Date: Fri, 26 Oct 2018 10:37:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug c++/84576] [6/7/8/9 Regression] g++: internal compiler error: Segmentation fault (program cc1plus)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/37916] [6/7/8/9 Regression] SSA names causing register pressure; unnecessarily many simultaneously "live" names.
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #29 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug middle-end/39838] [6 regression] unoptimal code for two simple loops
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #27 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
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Subject: [Bug middle-end/24639] [meta-bug] bug to track all Wuninitialized issues
Date: Fri, 26 Oct 2018 10:51:00 -0000
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Bug 24639 depends on bug 61409, which changed state.
Bug 61409 Summary: [6 regression] -Wmaybe-uninitialized false-positive with -O2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61409
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Subject: [Bug middle-end/61409] [6 regression] -Wmaybe-uninitialized false-positive with -O2
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #32 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619206-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:49:29 2018
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Subject: [Bug middle-end/68733] [6/7/8/9 Regression] FAIL: libgomp.c/target-29.c (internal compiler error)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
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Subject: [Bug tree-optimization/63537] [6 Regression] Missed optimization: Loop unrolling adds extra copy when returning aggregate
Date: Fri, 26 Oct 2018 10:51:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
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Subject: [Bug ada/65683] [6/7/8/9 regression] access types across "limited with" breaks restriction of No_Elaboration_Code
Date: Fri, 26 Oct 2018 10:51:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65683
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed
>From gcc-bugs-return-619233-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:53:05 2018
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Subject: [Bug rtl-optimization/65618] [6 Regression] gnat bootstrap comparison failure on mips{,el}-linux-gnu
Date: Fri, 26 Oct 2018 10:51:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
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Subject: [Bug c++/70018] [6 Regression] Possible issue around IPO and C++ comdats discovered as pure/const
Date: Fri, 26 Oct 2018 10:51:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619228-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:52:15 2018
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Subject: [Bug tree-optimization/59642] [6 Regression] Performance regression with -ftree-loop-distribute-patterns
Date: Fri, 26 Oct 2018 10:51:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619242-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:53:50 2018
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Subject: [Bug tree-optimization/71109] gcc ICE at -O3 on valid code on x86_64-linux-gnu in "maybe_record_trace_start"
Date: Fri, 26 Oct 2018 10:52:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|6.5 |---
Summary|[6 Regression] gcc ICE at |gcc ICE at -O3 on valid
|-O3 on valid code on |code on x86_64-linux-gnu in
|x86_64-linux-gnu in |"maybe_record_trace_start"
|"maybe_record_trace_start" |
>From gcc-bugs-return-619238-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:53:36 2018
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Subject: [Bug rtl-optimization/70703] [6 regression] Regression in register usage on x86
Date: Fri, 26 Oct 2018 10:52:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619239-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:53:43 2018
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Subject: [Bug other/16996] [meta-bug] code size improvements
Date: Fri, 26 Oct 2018 10:52:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=16996
Bug 16996 depends on bug 70703, which changed state.
Bug 70703 Summary: [6 regression] Regression in register usage on x86
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70703
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Subject: [Bug ada/70867] [6 regression] access discriminant in return aggregate wrongly detected as dangling
Date: Fri, 26 Oct 2018 10:52:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Eric, is this fixed in 7.x or newer?
>From gcc-bugs-return-619226-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:52:10 2018
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Subject: [Bug tree-optimization/46639] [6 Regression] Missing optimization due to function splitting and redundant conditionals
Date: Fri, 26 Oct 2018 10:52:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619237-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:53:36 2018
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Subject: [Bug rtl-optimization/70710] [6 Regression] Compile time hog w/ -O -g -fpeel-loops
Date: Fri, 26 Oct 2018 10:52:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70710
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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CC| |jakub at gcc dot gnu.org
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619244-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:54:01 2018
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Subject: [Bug debug/82738] [meta-bug] issues with the -Og optimization level
Date: Fri, 26 Oct 2018 10:53:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82738
Bug 82738 depends on bug 68836, which changed state.
Bug 68836 Summary: GCC can't properly emit debug info for function arguments in a back-trace when using -Og
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68836
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |---
>From gcc-bugs-return-619227-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:52:11 2018
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Subject: [Bug driver/49726] [6 Regression] -g0 file.S -g does not produce debug info
Date: Fri, 26 Oct 2018 10:53:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49726
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619245-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:54:02 2018
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Subject: [Bug target/71321] [6 Regression] x86: worse code for uint8_t % 10 and / 10
Date: Fri, 26 Oct 2018 10:53:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619232-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:52:52 2018
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Subject: [Bug rtl-optimization/65135] [6 Regression] Performance regression in pic mode after r220674.
Date: Fri, 26 Oct 2018 10:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65135
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619225-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:52:10 2018
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Subject: [Bug other/16996] [meta-bug] code size improvements
Date: Fri, 26 Oct 2018 10:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=16996
Bug 16996 depends on bug 39838, which changed state.
Bug 39838 Summary: [6 regression] unoptimal code for two simple loops
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39838
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----------------------------------------------------------------------------
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>From gcc-bugs-return-619236-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:53:34 2018
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Subject: [Bug middle-end/70689] [6 Regression] ICE on valid code at -O1 in 32-bit mode on x86_64-linux-gnu in curr_insn_transform, at lra-constraints.c:3564
Date: Fri, 26 Oct 2018 10:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70689
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
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Target Milestone|6.5 |7.0
--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619243-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:54:00 2018
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Subject: [Bug debug/68836] GCC can't properly emit debug info for function arguments in a back-trace when using -Og
Date: Fri, 26 Oct 2018 10:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68836
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |---
Known to fail| |8.2.0, 9.0
--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
Sorry for not providing a test-case, here we go:
$ cat test.c
#include <stdio.h>
void foo (int argc, char **argv)
{
fprintf (stderr, "%s%s\n", argv[0], argv[1]);
}
void bar (int argc, char **argv)
{
foo (argc, argv);
}
int main(int argc, char **argv)
{
bar (argc, argv);
}
$ gcc -Og test.c -g
$ gdb ./a.out
(gdb) b foo
Breakpoint 1 at 0x401112: file test.c, line 4.
(gdb) r
Starting program: /home/marxin/BIG/Programming/linux/tools/perf/a.out
Breakpoint 1, foo (argc=1, argv=0x7fffffffdbf8) at test.c:4
4 {
(gdb) bt
#0 foo (argc=1, argv=0x7fffffffdbf8) at test.c:4
#1 0x0000000000401141 in bar (argc=<optimized out>, argv=<optimized out>) at
test.c:10
#2 0x000000000040114f in main (argc=<optimized out>, argv=<optimized out>) at
test.c:15
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Subject: [Bug tree-optimization/53947] [meta-bug] vectorizer missed-optimizations
Date: Fri, 26 Oct 2018 10:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
Bug 53947 depends on bug 71488, which changed state.
Bug 71488 Summary: [6 Regression] Wrong code for vector comparisons with ivybridge and westmere targets
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71488
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>From gcc-bugs-return-619246-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:54:15 2018
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Subject: [Bug tree-optimization/71488] [6 Regression] Wrong code for vector comparisons with ivybridge and westmere targets
Date: Fri, 26 Oct 2018 10:54:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
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Subject: [Bug tree-optimization/71020] [6 Regression] SSA corruption: Unable to coalesce ssa_names 2 and 13 which are marked as MUST COALESCE.
Date: Fri, 26 Oct 2018 10:54:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619235-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:53:16 2018
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Subject: [Bug tree-optimization/70390] [6/7/8/9 Regression] internal compiler error: in copy_loop_close_phi_args, at graphite-isl-ast-to-gimple.c:2114
Date: Fri, 26 Oct 2018 10:54:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|6.5 |7.4
Summary|[6 Regression] internal |[6/7/8/9 Regression]
|compiler error: in |internal compiler error: in
|copy_loop_close_phi_args, |copy_loop_close_phi_args,
|at |at
|graphite-isl-ast-to-gimple. |graphite-isl-ast-to-gimple.
|c:2114 |c:2114
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Based on #c10 retargeting.
>From gcc-bugs-return-619249-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:55:42 2018
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Subject: [Bug c++/71569] [6 regression] Crash: External definition of template member from template struct
Date: Fri, 26 Oct 2018 10:55:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619248-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:55:27 2018
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Subject: [Bug web/87696] gcc-patches mail archive does not show attachments clearly
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Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
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--- Comment #2 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
OK, marking as enhancement then.
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Subject: [Bug c++/71570] [6 regression] ICE on invalid variable capture in cxx_incomplete_type_diagnostic, at cp/typeck2.c:55
Date: Fri, 26 Oct 2018 10:56:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619251-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:56:47 2018
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Subject: [Bug c/71602] [6 regression] ICE on __builtin_va_arg in build_va_arg, at c-family/c-common.c:5810
Date: Fri, 26 Oct 2018 10:56:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #21 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619252-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:57:55 2018
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Subject: [Bug target/71607] [6 Regression] [ARM] ice due to forbidden enabled attribute dependency on instruction operands
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619253-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:59:06 2018
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Subject: [Bug c++/71638] [6 Regression] ICE on invalid C++ code on x86_64-linux-gnu with -Wall (internal compiler error: non-constant element in constant CONSTRUCTOR)
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71638
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619254-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 10:59:31 2018
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Subject: [Bug middle-end/71654] [6 Regression] missing VRP optimization on c++ unsigned char and short expressions
Date: Fri, 26 Oct 2018 10:59:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619255-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:01:44 2018
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Subject: [Bug tree-optimization/71691] [6 Regression] wrong code at -O3 in both 32-bit and 64-bit modes on x86_64-linux-gnu (Floating point exception)
Date: Fri, 26 Oct 2018 11:01:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #25 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619256-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:02:25 2018
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Subject: [Bug rtl-optimization/71724] [6 Regression] ICE: Segmentation fault, deep recursion between combine_simplify_rtx and subst
Date: Fri, 26 Oct 2018 11:02:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619257-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:02:53 2018
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Subject: [Bug c++/71747] [6 Regression] ICE on invalid C++11 code with misuse of overloaded operator '()': Segmentation fault (program cc1plus)
Date: Fri, 26 Oct 2018 11:02:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619258-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:03:44 2018
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Subject: [Bug rtl-optimization/71779] [6 regression] isl miscompiled with -mabi=ilp32
Date: Fri, 26 Oct 2018 11:03:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #28 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619259-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:04:06 2018
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Subject: [Bug middle-end/71907] [6 regression] missing buffer overflow warnings with -flto
Date: Fri, 26 Oct 2018 11:04:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619260-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:05:23 2018
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Subject: [Bug tree-optimization/71947] [6 Regression] x ^ y not folded to 0 if x == y by DOM
Date: Fri, 26 Oct 2018 11:05:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619261-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:06:38 2018
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Subject: [Bug c++/72707] [6 regression] local anonymous union member hides names in the same scope
Date: Fri, 26 Oct 2018 11:06:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619262-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:07:13 2018
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Subject: [Bug fortran/72716] [6 Regression] ICE in gfc_resolve_omp_declare_simd, at fortran/openmp.c:5156
Date: Fri, 26 Oct 2018 11:07:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72716
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619263-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:12:38 2018
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Subject: [Bug ada/70867] [7/8/9 regression] access discriminant in return aggregate wrongly detected as dangling
Date: Fri, 26 Oct 2018 11:12:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70867
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|6.5 |7.4
Summary|[6 regression] access |[7/8/9 regression] access
|discriminant in return |discriminant in return
|aggregate wrongly detected |aggregate wrongly detected
|as dangling |as dangling
--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Eric, is this fixed in 7.x or newer?
Nope.
>From gcc-bugs-return-619264-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:16:28 2018
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Subject: [Bug c++/72752] [6 Regression] ICE: in retrieve_specialization, at cp/pt.c:1183
Date: Fri, 26 Oct 2018 11:16:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619265-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:17:04 2018
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Subject: [Bug c++/72759] [6 Regression] ICE on invalid C++ code on x86_64-linux-gnu (Segmentation fault, tree_class_check, ocp_convert)
Date: Fri, 26 Oct 2018 11:17:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619266-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:17:13 2018
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Subject: [Bug c++/72813] [6 Regression] atomic header cannot be compiled into translation unit with -fkeep-inline-functions
Date: Fri, 26 Oct 2018 11:17:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619268-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:19:21 2018
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Subject: [Bug c++/77581] [6 Regression] ICE: instantiate_template_1, cp/pt.c:17391
Date: Fri, 26 Oct 2018 11:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619267-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:19:01 2018
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Subject: [Bug target/74563] [6 regression] Classic MIPS16 (non-MIPS16e) function return broken
Date: Fri, 26 Oct 2018 11:19:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619270-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:20:27 2018
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Subject: [Bug c++/77639] [6 Regression] ICE on x86_64-linux-gnu (internal compiler error: tree check: accessed elt 1 of tree_vec with 0 elts in unify, at cp/pt.c:19674)
Date: Fri, 26 Oct 2018 11:20:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619271-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:20:43 2018
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Subject: [Bug c++/77659] [6 Regression] internal compiler error: in gimplify_expr, at gimplify.c:8858
Date: Fri, 26 Oct 2018 11:20:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619269-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:20:09 2018
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Subject: [Bug c++/77626] [6 Regression] ICE with -Wall on x86_64-linux-gnu (internal compiler error: Segmentation fault, byte_from_pos, cxx_fold_indirect_ref)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619273-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:21:59 2018
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Subject: [Bug c++/77790] [6 Regression] ICE on valid C++14 code when compiling with "-std=c++11": in push_access_scope, at cp/pt.c:227
Date: Fri, 26 Oct 2018 11:21:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619272-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:21:31 2018
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Subject: [Bug rtl-optimization/77770] [6 Regression] Internal compiler error on source which compiles with earlier versions.
Date: Fri, 26 Oct 2018 11:21:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619274-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:22:20 2018
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Subject: [Bug target/77881] [6 Regression] Non-optimal signed comparison on x86_64 since r146817
Date: Fri, 26 Oct 2018 11:22:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619275-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:22:49 2018
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Subject: [Bug middle-end/77959] [6 Regression] ICE in ix86_decompose_address, at i386/i386.c:14954
Date: Fri, 26 Oct 2018 11:22:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619276-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:23:10 2018
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Subject: [Bug fortran/78026] [6 Regression] ICE in gfc_resolve_omp_declare_simd, at fortran/openmp.c:5190
Date: Fri, 26 Oct 2018 11:23:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619277-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:23:44 2018
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Subject: [Bug ipa/78027] [6 Regression] ICE in new_oacc_loop_routine, at omp-low.c:19000
Date: Fri, 26 Oct 2018 11:23:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619279-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:25:59 2018
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Subject: [Bug rtl-optimization/78127] [6 Regression] AArch64 internal compiler error: in lra_eliminate, at lra-eliminations.c:1440
Date: Fri, 26 Oct 2018 11:25:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619278-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:25:36 2018
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Subject: [Bug target/78102] [6 regression] GCC refuses to generate PCMPEQQ instruction for SSE4.1
Date: Fri, 26 Oct 2018 11:25:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619280-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:26:29 2018
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Subject: [Bug tree-optimization/78343] [6 Regression] Loop is not eliminated
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619281-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:26:48 2018
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Subject: [Bug c++/78345] [6 Regression] ICE on invalid c++ code on x86_64-linux-gnu (internal compiler error: in cxx_eval_outermost_constant_expr, at cp/constexpr.c:4464)
Date: Fri, 26 Oct 2018 11:26:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619282-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:27:11 2018
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Subject: [Bug lto/78407] [6 Regression] LTO breaks separate overriding of symbol aliases
Date: Fri, 26 Oct 2018 11:27:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619283-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:27:38 2018
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Subject: [Bug c++/78572] [6 Regression] internal compiler error: in output_constructor_regular_field, at varasm.c:4968
Date: Fri, 26 Oct 2018 11:27:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619284-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:32:02 2018
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Subject: [Bug rtl-optimization/78580] [6 Regression] Segfault in gcc with multilib (-m32) and -ffixed-*
Date: Fri, 26 Oct 2018 11:32:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619285-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:32:57 2018
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Subject: [Bug middle-end/78707] [6 Regression] internal compiler error: in push_reload, at reload.c:1349
Date: Fri, 26 Oct 2018 11:32:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Does this fail also with 7.x and later?
>From gcc-bugs-return-619287-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:33:48 2018
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Subject: [Bug c++/78774] [6 Regression] ICE in constexpr string literals and templates
Date: Fri, 26 Oct 2018 11:33:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619286-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:33:25 2018
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Subject: [Bug middle-end/78726] [6 Regression] Incorrect unsigned arithmetic optimization
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619289-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:34:30 2018
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Subject: [Bug tree-optimization/78856] [6 Regression] wrong code at -O3 on x86_64-linux-gnu (in both 32-bit and 64-bit modes)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619290-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:34:47 2018
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Subject: [Bug c++/78890] [6 Regression] ICE on invalid reference type in union
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619288-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:34:03 2018
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Subject: [Bug rtl-optimization/78812] [6 Regression] Wrong code generation due to hoisting memory load across function call
Date: Fri, 26 Oct 2018 11:34:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619291-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:38:28 2018
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Subject: [Bug rtl-optimization/78911] [6 Regression] Infinite loop at -O2/O3 optimization levels while trying to compile server.c from Wine-2.0-rc2
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619292-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:39:30 2018
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Subject: [Bug middle-end/79212] [6 Regression] internal compiler error: in maybe_lookup_decl_in_outer_ctx, at omp-low.c:4134
Date: Fri, 26 Oct 2018 11:39:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619293-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:39:57 2018
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Subject: [Bug c++/79360] [6 Regression] ICE with NSDMI and enum in union
Date: Fri, 26 Oct 2018 11:39:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619294-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:40:48 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Fri, 26 Oct 2018 11:40:00 -0000
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--- Comment #47 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Douglas Mencken from comment #45)
> (In reply to self from comment #44)
>
> > I can’t get where is the value of STACK_DYNAMIC_OFFSET in published assembly
> > and why do you think it is wrong
>
> Most likely this value is shown as 96 in “addi r1,r30,96†(80 for _t1 and
> _t2) of epilogues
>
> bl _t1
> addi r1,r30,96
> lwz r0,8(r1)
> lwz r30,-8(r1)
> lwz r31,-4(r1)
> mtlr r0
> blr
No, it's the value of r2 before the call to _t1 (like I quoted in comment 32):
t1_a4
addi r2,r1,72 -> 72 % 16 != 0 (correct value would be 64)
stw r6,60(r1)
stw r2,56(r1)
As long as STACK_DYNAMIC_OFFSET isn't aligned, the alloca pointer won't be
setup correctly, and this can cause it to corrupt other data in the function.
>From gcc-bugs-return-619297-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:41:36 2018
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Subject: [Bug rtl-optimization/79388] [6 Regression] wrong code with -O -fno-tree-coalesce-vars
Date: Fri, 26 Oct 2018 11:41:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619296-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:41:14 2018
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Subject: [Bug c++/69698] [meta-bug] flexible array members
Date: Fri, 26 Oct 2018 11:41:00 -0000
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Bug 69698 depends on bug 79363, which changed state.
Bug 79363 Summary: [6 Regression] ICE with NSDMI and array
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79363
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>From gcc-bugs-return-619295-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:41:13 2018
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Subject: [Bug c++/79363] [6 Regression] ICE with NSDMI and array
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619299-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:42:48 2018
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Subject: [Bug c++/79457] [6 Regression] Segmentation fault in templated decltype evaluation
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619298-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:42:16 2018
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Subject: [Bug c++/79410] [6 Regression] internal compiler error: in gimplify_init_ctor_preeval, at gimplify.c:3489
Date: Fri, 26 Oct 2018 11:42:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619302-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:43:59 2018
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Subject: [Bug tree-optimization/79734] [6 Regression] ICE: verify_gimple failed
Date: Fri, 26 Oct 2018 11:43:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619300-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:43:09 2018
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Subject: [Bug rtl-optimization/79571] [6 Regression] ICE in Max. number of generated reload insns per insn is achieved (90)
Date: Fri, 26 Oct 2018 11:43:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619301-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:43:31 2018
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Subject: [Bug c++/79655] [6 Regression] ICE on invalid c++ code in cxx_eval_store_expression in cp/constexpr.c:3464
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619303-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:44:38 2018
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Subject: [Bug c++/79797] [6 Regression] ICE with NSDMI, this pointer and constexpr
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619304-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:45:15 2018
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Subject: [Bug c++/79960] [6 Regression] Class template partial specializations for const volatile types don't match
Date: Fri, 26 Oct 2018 11:45:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619307-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:47:02 2018
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Subject: [Bug target/80162] [6 Regression] ICE on invalid code (address of register variable)
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619305-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:47:02 2018
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Subject: [Bug sanitizer/79993] [6 Regression] ICE in tree_to_uhwi, at tree.c:7344
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619310-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:47:07 2018
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87696
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
On the other hand, https://gcc.gnu.org/ml/gcc-patches/2018-10/msg01599.html
looks fine. Three text/plain attachments, all linked to separately.
>From gcc-bugs-return-619306-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:47:03 2018
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Subject: [Bug target/80017] [6 Regression] ICE: Max. number of generated reload insns per insn is achieved (90)
Date: Fri, 26 Oct 2018 11:47:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80017
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619309-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:47:05 2018
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Subject: [Bug c++/83808] [7 Regression] "internal compiler error" for invalid input
Date: Fri, 26 Oct 2018 11:47:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83808
Bug 83808 depends on bug 79993, which changed state.
Bug 79993 Summary: [6 Regression] ICE in tree_to_uhwi, at tree.c:7344
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79993
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Subject: [Bug middle-end/80173] [6 Regression] ICE in store_bit_field_1, at expmed.c:787
Date: Fri, 26 Oct 2018 11:47:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619308-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:47:04 2018
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619312-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:48:19 2018
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Subject: [Bug tree-optimization/80202] [6 Regression] Spurious warning "array subscript is below array bounds" with if-statement and char to unsigned int conversion
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619314-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:49:29 2018
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Subject: [Bug tree-optimization/80631] [6 Regression] Compiling with -O3 -mavx2 gives wrong code
Date: Fri, 26 Oct 2018 11:49:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
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Subject: [Bug tree-optimization/56456] [meta-bug] bogus/missing -Warray-bounds
Date: Fri, 26 Oct 2018 11:49:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56456
Bug 56456 depends on bug 80202, which changed state.
Bug 80202 Summary: [6 Regression] Spurious warning "array subscript is below array bounds" with if-statement and char to unsigned int conversion
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80202
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>From gcc-bugs-return-619315-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:49:29 2018
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Subject: [Bug tree-optimization/80769] [6 Regression] Invalid delayed string length computation in tree-ssa-strlen.c
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619316-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:49:52 2018
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Subject: [Bug c++/81073] [6 Regression] link failure as C++ misses to instantiate some objects
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81073
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619317-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:52:08 2018
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Subject: [Bug c++/81234] [6 Regression] stray notes for a flexible array member not at end of struct
Date: Fri, 26 Oct 2018 11:52:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81234
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Not a bug.
>From gcc-bugs-return-619319-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:52:27 2018
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Subject: [Bug c++/81675] [6 Regression] attribute(noreturn) of destructor in :? not honored
Date: Fri, 26 Oct 2018 11:52:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619320-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:52:59 2018
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Subject: [Bug middle-end/81994] [6 Regression][C++11]Internal error: same_comdat_group list across different groups
Date: Fri, 26 Oct 2018 11:52:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619318-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:52:10 2018
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Subject: [Bug c++/69698] [meta-bug] flexible array members
Date: Fri, 26 Oct 2018 11:52:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69698
Bug 69698 depends on bug 81234, which changed state.
Bug 81234 Summary: [6 Regression] stray notes for a flexible array member not at end of struct
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81234
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>From gcc-bugs-return-619321-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:53:17 2018
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Subject: [Bug c++/82085] [6 Regression] ICE: Template variable reference used in nested template alias
Date: Fri, 26 Oct 2018 11:53:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619322-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:53:57 2018
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Subject: [Bug c++/82336] [6 Regression] GCC requires but does not emit defaulted constructors in certain cases
Date: Fri, 26 Oct 2018 11:53:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619323-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:54:15 2018
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Subject: [Bug tree-optimization/83269] [6 Regression] Wrong constant folding
Date: Fri, 26 Oct 2018 11:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83269
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619324-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:54:33 2018
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Subject: [Bug tree-optimization/84485] [6 Regression] Vectorising zero-stride rmw operation
Date: Fri, 26 Oct 2018 11:54:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
>From gcc-bugs-return-619325-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:55:43 2018
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Subject: [Bug middle-end/84823] [6 Regression] x86 LRA hang on valid code (no ICE) with -fno-omit-frame-pointer
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Does this work with GCC 7.x or later? GCC 6 branch has been closed.
>From gcc-bugs-return-619326-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 11:56:18 2018
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Subject: [Bug tree-optimization/85891] [6 Regression] Simple loop is not SLP-vectorized after r196872
Date: Fri, 26 Oct 2018 11:56:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
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Subject: [Bug sanitizer/85924] [6 Regression] ASAN: segfault in __interceptor_clock_gettime ( because 'asan_linux.o' for libasan.a built with -DPIC )
Date: Fri, 26 Oct 2018 11:57:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 branch is being closed, fixed in 7.x.
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Subject: [Bug c++/79325] [7/8/9 Regression] ICE on valid GNU C++ code (typeof) on x86_64-linux-gnu: in arg_assoc_type, at cp/name-lookup.c:5823
Date: Fri, 26 Oct 2018 12:06:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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Summary|[6/7 Regressio] ICE on |[7/8/9 Regression] ICE on
|valid GNU C++ code (typeof) |valid GNU C++ code (typeof)
|on x86_64-linux-gnu: in |on x86_64-linux-gnu: in
|arg_assoc_type, at |arg_assoc_type, at
|cp/name-lookup.c:5823 |cp/name-lookup.c:5823
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Subject: [Bug tree-optimization/81126] [7 Regression] ICE in df_compact_blocks, at df-core.c:1743
Date: Fri, 26 Oct 2018 12:07:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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>From gcc-bugs-return-619330-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 12:08:54 2018
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Subject: [Bug target/70927] [6 only] avx512dq instructions emitted even with -mavx512vl -mno-avx512dq
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed in 7.0.
>From gcc-bugs-return-619331-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 12:09:49 2018
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Subject: [Bug tree-optimization/68128] A huge regression in Parboil v2.5 OpenMP CUTCP test (2.5 times lower performance)
Date: Fri, 26 Oct 2018 12:09:00 -0000
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-619332-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 12:09:50 2018
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Subject: [Bug other/79704] [meta-bug] Phoronix Test Suite compiler performance issues
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Bug 79704 depends on bug 68128, which changed state.
Bug 68128 Summary: A huge regression in Parboil v2.5 OpenMP CUTCP test (2.5 times lower performance)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68128
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>From gcc-bugs-return-619333-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 12:18:20 2018
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Subject: [Bug fortran/87597] [7/8/9 Regression] wrong result with matmul inlining
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--- Comment #9 from janus at gcc dot gnu.org ---
Tobias, are you going to backport the fix to the release branches?
Jakub's comment 8 sounds like it might already be too late for 6.5, but it
would be great to have this at least on the 7 and 8 branches!
>From gcc-bugs-return-619334-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 12:22:22 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #48 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Douglas Mencken from comment #44)
> I got assembly of pr78468.c from various versions of GCC
>
> • 7.3 produces absolutely the same as patched 8.2
> • 6.4 produces slightly different assembly with stmw & lmw and different
> sequence of instructions, but numbers like in “addi r2,r1,103†are the same
> • 4.2.1 can’t compile it at all pr78468.c:9: error: expected ‘=’, ‘,’, ‘;’,
> ‘asm’ or ‘__attribute__’ before ‘uintptr_t’
>
> (In reply to Wilco from comment #43)
> > No the problem is not in this code. It's STACK_DYNAMIC_OFFSET which is wrong.
>
> I can’t get where is the value of STACK_DYNAMIC_OFFSET in published assembly
> and why do you think it is wrong
The value is used to create the alloca pointer which has to be r1 +
STACK_DYNAMIC_OFFSET aligned to at least STACK_BOUNDARY.
> It seems that the problem is in fact that your version of
> get_dynamic_stack_size from explow.c (introduced with r251713) gives out too
> small values, for example in _t1_a8 it is fifteen “addi r3,r3,15†while ages
> before that it worked as being “addi r3,r3,22â€
>
> - addi r3,r3,15
> + addi r3,r3,22
No my version uses exactly the correct size (adding 15 and clearing the bottom
4 bits rounds up to a multiple of 16).
> And aligning looks okay, it is then handled by code for
>
> #define RS6000_ALIGN(n,a) ROUND_UP ((n), (a))
> #define ROUND_UP(x,y) (((x) + (y) - 1) & ~((y) - 1))
>
> part of which is rlwinm and such
>
> (16 + 15) & ~15 = 16
> (16 + 22) & ~15 = 32
>
> Thus for your version of get_dynamic_stack_size that size is 16 here, but
> for previous ones it is 32. And eventually this leads to fail for such
> built-ins as acos, floor, &c.
16 is correct - an alloca of 16 should allocate 16 bytes, not 32. If the size
were incorrect it would fail on all targets, and not only when
STACK_DYNAMIC_OFFSET is not correctly aligned. What happens is that the extra
padding due to adding 22 rather than 15 helps to hide the bug.
>From gcc-bugs-return-619335-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 12:25:04 2018
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Subject: [Bug tree-optimization/87105] Autovectorization [X86, SSE2, AVX2, DoublePrecision]
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--- Comment #16 from Petr <kobalicek.petr at gmail dot com> ---
Thanks a lot! I hope much more code would benefit from this change.
>From gcc-bugs-return-619336-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 12:44:59 2018
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Subject: [Bug middle-end/87757] weird underlining and colors in sprintf warnings for unterminated arrays
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David Malcolm <dmalcolm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |aldyh at gcc dot gnu.org
--- Comment #2 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
The second ADDR_EXPR's location is wrong; it's the location of the whole of the
function call:
8 | __builtin_sprintf (e, "%s", &a[0]);
| ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
rather than just of the 2nd argument, and this leads to the strange
colorization.
The bogus location is coming from here in gimplify.c:
3130 /* FIXME diagnostics: This will mess up gcc.dg/Warray-bounds.c. */
3131 /* Make sure arguments have the same location as the function call
3132 itself. */
3133 protected_set_expr_location (*arg_p, call_location);
which came from commits by Aldy in 2008 and 2009:
r140917 (aka 489c40889c8be89bd5bed4b166974f8c1e01e4ee)
and
r148442 (aka e60a6f7b6c12183ca32dfe2876f09f4b4f4f69c1)
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Subject: [Bug middle-end/87757] weird underlining and colors in sprintf warnings for unterminated arrays
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--- Comment #3 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
prior to that gimplify.c code, the location of the argument is correctly set,
as:
t.c:8:31: note:
8 | __builtin_sprintf (e, "%s", &a[0]);
| ^~~~~
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Subject: [Bug middle-end/87757] weird underlining and colors in sprintf warnings for unterminated arrays
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--- Comment #4 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Aldy: do you remember why the arguments need to have the same location as the
call itself?
The first case works because during gimplify_arg it's wrapped in a NOP_EXPR
which is casting from char[] to char *, and it's this NOP_EXPR which gets its
location modified.
The second case doesn't have the NOP_EXPR.
>From gcc-bugs-return-619339-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 13:40:09 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #49 from Segher Boessenkool <segher at gcc dot gnu.org> ---
(In reply to Douglas Mencken from comment #46)
> Yeah, PowerPC doesn’t have addressing via PC, thus it requires to do tricks
> like that
No, we don't have to do such strange code. The usual way is to do a call
to the next instruction, and then a mflr. No blrl needed.
This _is_ an excuse to use that fun instruction though!
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #50 from Segher Boessenkool <segher at gcc dot gnu.org> ---
The generic code rounded up the allocation size twice, and that isn't needed.
The problem has been solved for other targets before; a patch for Darwin is
at https://gcc.gnu.org/ml/gcc-testresults/2017-01/msg02971.html , patch 0001.
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--- Comment #51 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #49)
> (In reply to Douglas Mencken from comment #46)
> > Yeah, PowerPC doesn’t have addressing via PC, thus it requires to do tricks
> > like that
>
> No, we don't have to do such strange code. The usual way is to do a call
> to the next instruction, and then a mflr. No blrl needed.
>
> This _is_ an excuse to use that fun instruction though!
That would kill the return stack though unless the hardware special cases a
call to next instruction as not being a call but providing the PC.
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87750
--- Comment #2 from Mark Atkinson <mark.atkinson99 at gmail dot com> ---
Created attachment 44906
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44906&action=edit
Bug repro (godbolt link copy-paste)
>From gcc-bugs-return-619343-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 14:01:40 2018
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From: "wilco at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Fri, 26 Oct 2018 14:01:00 -0000
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--- Comment #52 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #50)
> The generic code rounded up the allocation size twice, and that isn't needed.
>
> The problem has been solved for other targets before; a patch for Darwin is
> at https://gcc.gnu.org/ml/gcc-testresults/2017-01/msg02971.html , patch 0001.
Yes that looks correct indeed. No idea why it wasn't committed... It looks like
the patch in comment 16 didn't work because rs6000_stack_info does its own
calculation of this, so aligning when alloca isn't used will get incorrect
frame offsets:
info->fixed_size = RS6000_SAVE_AREA;
info->vars_size = RS6000_ALIGN (get_frame_size (), 8);
if (cfun->calls_alloca)
info->parm_size =
RS6000_ALIGN (crtl->outgoing_args_size + info->fixed_size,
STACK_BOUNDARY / BITS_PER_UNIT) - info->fixed_size;
else
info->parm_size = RS6000_ALIGN (crtl->outgoing_args_size,
TARGET_ALTIVEC ? 16 : 8);
>From gcc-bugs-return-619344-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 14:06:34 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Fri, 26 Oct 2018 14:06:00 -0000
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--- Comment #53 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Wilco from comment #52)
> (In reply to Segher Boessenkool from comment #50)
> > The generic code rounded up the allocation size twice, and that isn't needed.
> >
> > The problem has been solved for other targets before; a patch for Darwin is
> > at https://gcc.gnu.org/ml/gcc-testresults/2017-01/msg02971.html , patch 0001.
>
> Yes that looks correct indeed. No idea why it wasn't committed...
long story to do with water coming through the office ceiling, relocation to a
place without a PPC machine available and then someone claiming that they had
bootstrap OK without that patch (which surprised me).
I will try to check the situation on 8.2.1 + back ports from trunk over the
weekend.
if that patch is still good then we should be able to get it into trunk and 8/7
as needed it's entirely Darwin-local
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Subject: [Bug c++/87750] [8/9 Regression] Failed compilation / parsing of template member call after 'using' declaration
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--- Comment #3 from Mark Atkinson <mark.atkinson99 at gmail dot com> ---
(In reply to Mark Atkinson from comment #2)
> Created attachment 44906 [details]
> Bug repro (godbolt link copy-paste)
Incidentally godbolt copies with syntax colour coding etc., but will only paste
as such into editors which accept rich text. Paste into a text editor / text
dialog and I'll paste as plain text (ie you won't get weird codes in your plain
text, it works just fine).
>From gcc-bugs-return-619346-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 14:13:20 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #54 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Wilco from comment 51)
> (In reply to Segher Boessenkool from comment 49)
> > (In reply to Douglas Mencken from comment 46)
> > > Yeah, PowerPC doesn’t have addressing via PC, thus it requires to do tricks
> > > like that
> >
> > No, we don't have to do such strange code. The usual way is to do a call
> > to the next instruction, and then a mflr. No blrl needed.
> >
> > This _is_ an excuse to use that fun instruction though!
>
> That would kill the return stack though unless the hardware special cases a
> call to next instruction as not being a call but providing the PC.
Nope. bl does nothing to any memory pointed by any register, it just pust
current pc+4 into lr, and then updates pc with its argument as relative offset.
I saw the huge code with a lot of subroutines where stack wasn’t used at all
(sure such functions are not reentrant), handling call chain by gprs 13 to 29,
for depths less than 16 calls it is very possible
Code like bl +8, mflr would just result in larger offsets to data in text.
Anyway I don’t get an idea why it may be needed at all. Data in .data
(read-only too), code in .text. Simple, easy and nice
(In reply to Segher Boessenkool from comment 50)
> The generic code rounded up the allocation size twice, and that isn't needed.
(In reply to Wilco from comment 48)
> 16 is correct - an alloca of 16 should allocate 16 bytes, not 32. If the
> size were incorrect it would fail on all targets, and not only when
> STACK_DYNAMIC_OFFSET is not correctly aligned. What happens is that the
> extra padding due to adding 22 rather than 15 helps to hide the bug.
Okay, I got it. 22 (32) is too much, 15 (16) is nice
> The problem has been solved for other targets before; a patch for Darwin is
> at https://gcc.gnu.org/ml/gcc-testresults/2017-01/msg02971.html , patch 0001.
It does worth trying
#undef STARTING_FRAME_OFFSET
#define STARTING_FRAME_OFFSET \
(FRAME_GROWS_DOWNWARD
\
? 0 \
- : (RS6000_ALIGN (crtl->outgoing_args_size, 16) \
- + RS6000_SAVE_AREA))
+ : (cfun->calls_alloca \
+ ? RS6000_ALIGN (crtl->outgoing_args_size + RS6000_SAVE_AREA, 16) \
+ : (RS6000_ALIGN (crtl->outgoing_args_size, 16) + RS6000_SAVE_AREA)))
Meanwhile, what was the problem to merge these patches a year ago? My previous
pr84113 was fixed by 2nd patch there, yet the 1st
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Subject: [Bug rtl-optimization/87761] [9 regression][MIPS] New FAIL: gcc.target/mips/fix-r4000-10.c -O1 start with r265398
Date: Fri, 26 Oct 2018 14:32:00 -0000
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--- Comment #3 from Segher Boessenkool <segher at gcc dot gnu.org> ---
All of those look like register allocation problems, except perhaps that
last one.
>From gcc-bugs-return-619348-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 14:34:56 2018
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From: "dougmencken at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #55 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Wilco from comment #52)
> (In reply to Segher Boessenkool from comment #50)
> > The generic code rounded up the allocation size twice, and that isn't needed.
> >
> > The problem has been solved for other targets before; a patch for Darwin is
> > at https://gcc.gnu.org/ml/gcc-testresults/2017-01/msg02971.html , patch 0001.
>
> Yes that looks correct indeed. No idea why it wasn't committed... It looks
> like the patch in comment 16 didn't work because rs6000_stack_info does its
> own calculation of this, so aligning when alloca isn't used will get
> incorrect frame offsets:
>
> info->fixed_size = RS6000_SAVE_AREA;
> info->vars_size = RS6000_ALIGN (get_frame_size (), 8);
> if (cfun->calls_alloca)
> info->parm_size =
> RS6000_ALIGN (crtl->outgoing_args_size + info->fixed_size,
> STACK_BOUNDARY / BITS_PER_UNIT) - info->fixed_size;
> else
> info->parm_size = RS6000_ALIGN (crtl->outgoing_args_size,
> TARGET_ALTIVEC ? 16 : 8);
Is this logic wrong? So what is this supposed to be?
>From gcc-bugs-return-619349-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 14:52:14 2018
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From: "wilco at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Fri, 26 Oct 2018 14:52:00 -0000
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--- Comment #56 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Douglas Mencken from comment #55)
> (In reply to Wilco from comment #52)
> > (In reply to Segher Boessenkool from comment #50)
> > > The generic code rounded up the allocation size twice, and that isn't needed.
> > >
> > > The problem has been solved for other targets before; a patch for Darwin is
> > > at https://gcc.gnu.org/ml/gcc-testresults/2017-01/msg02971.html , patch 0001.
> >
> > Yes that looks correct indeed. No idea why it wasn't committed... It looks
> > like the patch in comment 16 didn't work because rs6000_stack_info does its
> > own calculation of this, so aligning when alloca isn't used will get
> > incorrect frame offsets:
> >
> > info->fixed_size = RS6000_SAVE_AREA;
> > info->vars_size = RS6000_ALIGN (get_frame_size (), 8);
> > if (cfun->calls_alloca)
> > info->parm_size =
> > RS6000_ALIGN (crtl->outgoing_args_size + info->fixed_size,
> > STACK_BOUNDARY / BITS_PER_UNIT) - info->fixed_size;
> > else
> > info->parm_size = RS6000_ALIGN (crtl->outgoing_args_size,
> > TARGET_ALTIVEC ? 16 : 8);
>
> Is this logic wrong? So what is this supposed to be?
That's correct code, but it is essential that STARTING_FRAME_OFFSET does
exactly the same, and STACK_DYNAMIC_OFFSET aligns always.
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Fri, 26 Oct 2018 15:37:00 -0000
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--- Comment #57 from Segher Boessenkool <segher at gcc dot gnu.org> ---
The blrl thing ("skip a return") doesn't kill the return stack; all CPUs
with a return stack can recover it here afaik. Recovery of course takes
a little time still. Newer CPUs predict BL+4 as not-taken (but finish it
as if the prediction was correct); older CPUs do not create a link stack
entry if BI=31. So we emit "bcl 20,31,$+4" for this, which works optimally
in all cases.
>From gcc-bugs-return-619351-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 15:46:40 2018
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From: "davidegrayson at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/58372] internal compiler error: ix86_compute_frame_layout
Date: Fri, 26 Oct 2018 15:46:00 -0000
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David Grayson <davidegrayson at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |davidegrayson at gmail dot com
--- Comment #14 from David Grayson <davidegrayson at gmail dot com> ---
To recap: there is an internal compiler error in ix86_compute_frame_layout when
using rdrnd, C++, noexcept, and i686-w64-mingw32. And it probably affects
x86_64-w64-mingw32 too, but I am most interested in the i686 case so I will
focus on that.
Here is a minimal test case the reproduces the issue:
__attribute__((__target__("rdrnd")))
void f(unsigned int * b) noexcept {
__builtin_ia32_rdrand32_step(b);
}
Here are some workarounds I found:
1) Remove the "noexcept" specifier from the function.
2) Don't use the rdrand built-ins.
3) Compile the function as C code.
4) I'm not sure if this is safe, but you can use the compiler option
-mpreferred-stack-boundary=2, which tells GCC to prefer 4-aligning the stack.
I am running GCC as a cross-compiler on Linux, targeting i686-w64-mingw32. I
have seen this bug in GCC 7.3.0, 8.2.0, and the 8-20181019 snapshot. For the
remainder of this bug report, I will just focus on the behavior of the
8-20181019 snapshot.
Here is the command I use to compile the program above, and the full output of
the compiler:
----
$ ../prefix/bin/i686-w64-mingw32-g++ -c ../david.cpp
during RTL pass: ira
../david.cpp: In function 'void f(unsigned int*)':
../david.cpp:3:1: internal compiler error: in ix86_compute_frame_layout, at
config/i386/i386.c:11734
}
^
0xe0b414 ix86_compute_frame_layout
../../gcc-8-20181019/gcc/config/i386/i386.c:11734
0xaf65ed set_initial_elim_offsets
../../gcc-8-20181019/gcc/reload1.c:3858
0xb0131f calculate_elim_costs_all_insns()
../../gcc-8-20181019/gcc/reload1.c:1562
0x9e536f ira_costs()
../../gcc-8-20181019/gcc/ira-costs.c:2249
0x9decc6 ira_build()
../../gcc-8-20181019/gcc/ira-build.c:3427
0x9d64e3 ira
../../gcc-8-20181019/gcc/ira.c:5295
0x9d64e3 execute
../../gcc-8-20181019/gcc/ira.c:5606
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
----
The assertion that is failing in ix86_compute_frame_layout (i386.c, line 11734)
is this one:
gcc_assert (preferred_alignment <= stack_alignment_needed);
By adding my own fprintf statement, I determined that in the problematic case
we have:
- preferred_alignment is 16
- stack_alignment_needed is 4
I did some experiments and I found that the problematic case (using an rdrand
intrinsic in a noexcept C++ function) seems to be the only case where the
preferred_alignment variable is affected by the -mpreferred-stack-boundary
command-line option. In every other case, preferred_alignment is always just
4.
Isn't that weird? Just looking at variable names, I would expect
-mpreferred-stack-boundary to always affect crtl->preferred_stack_boundary and
crtl->stack_alignment_needed (which are where the values in the assertion above
come from). My guess is that someone decided to force the
preferred_stack_boundary and stack_alignment_needed to 4 on Windows for some
reason, and they succeeded in doing that for most cases, but they failed to do
it for the rdrand/C++/noexcept case.
Does anyone have an idea of how to fix this bug for real? What values should
crtl->preferred_stack_boundary crtl->stack_alignment_needed really have on
Windows, and should they be controllable from the command-line? Where do they
get set?
--David
>From gcc-bugs-return-619352-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 15:46:40 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #58 from Segher Boessenkool <segher at gcc dot gnu.org> ---
(In reply to Iain Sandoe from comment #53)
> (In reply to Wilco from comment #52)
> > (In reply to Segher Boessenkool from comment #50)
> > > The generic code rounded up the allocation size twice, and that isn't needed.
> > >
> > > The problem has been solved for other targets before; a patch for Darwin is
> > > at https://gcc.gnu.org/ml/gcc-testresults/2017-01/msg02971.html , patch 0001.
> >
> > Yes that looks correct indeed. No idea why it wasn't committed...
>
> long story to do with water coming through the office ceiling, relocation to
> a place without a PPC machine available and then someone claiming that they
> had bootstrap OK without that patch (which surprised me).
>
> I will try to check the situation on 8.2.1 + back ports from trunk over the
> weekend.
> if that patch is still good then we should be able to get it into trunk and
> 8/7 as needed it's entirely Darwin-local
This patch (https://gcc.gnu.org/ml/gcc-testresults/2017-01/txtNTsImfm9sQ.txt)
is okay for trunk and all open branches, btw.
>From gcc-bugs-return-619353-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 15:47:12 2018
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Subject: [Bug bootstrap/87741] Don't build readline/libreadline.a in GDB, when --with-system-readline is supplied
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--- Comment #5 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
Send email issues to postmaster@sourceware.org (not overseers, that's
another mailing list on the same server).
>From gcc-bugs-return-619354-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 16:16:42 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #59 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Segher Boessenkool from comment #58)
> This patch
> (https://gcc.gnu.org/ml/gcc-testresults/2017-01/txtNTsImfm9sQ.txt) is okay
> for trunk and all open branches, btw.
It needs some update, as example after r254003
>From gcc-bugs-return-619355-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 16:23:44 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #60 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Douglas Mencken from comment #59)
> (In reply to Segher Boessenkool from comment #58)
>
> > This patch
> > (https://gcc.gnu.org/ml/gcc-testresults/2017-01/txtNTsImfm9sQ.txt) is okay
> > for trunk and all open branches, btw.
>
> It needs some update, as example after r254003
i've reworked it and testing now
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Subject: [Bug rtl-optimization/87763] New: [9.0 Regression] aarch64 target testcases fail after r265398
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Bug ID: 87763
Summary: [9.0 Regression] aarch64 target testcases fail after
r265398
Product: gcc
Version: 9.0
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Priority: P3
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The following tests fail on aarch64 after r265398 (combine: Do not combine
moves from hard registers).
FAIL: gcc.dg/vect/vect-nop-move.c -flto -ffat-lto-objects scan-rtl-dump
combine
"deleting noop move"
FAIL: gcc.dg/vect/vect-nop-move.c scan-rtl-dump combine "deleting noop move"
FAIL: gcc.target/aarch64/combine_bfi_1.c scan-assembler-times \\tbfi\\t 5
FAIL: gcc.target/aarch64/combine_bfxil.c scan-assembler-times bfxil\\t 13
FAIL: gcc.target/aarch64/cvtf_1.c scan-assembler scvtf\td[0-9]+, x[0-9]+
FAIL: gcc.target/aarch64/cvtf_1.c scan-assembler scvtf\ts[0-9]+, w[0-9]+
FAIL: gcc.target/aarch64/cvtf_1.c scan-assembler ucvtf\td[0-9]+, x[0-9]+
FAIL: gcc.target/aarch64/cvtf_1.c scan-assembler ucvtf\ts[0-9]+, w[0-9]+
FAIL: gcc.target/aarch64/insv_1.c scan-assembler bfi\tx[0-9]+, x[0-9]+, 0, 8
FAIL: gcc.target/aarch64/insv_1.c scan-assembler bfi\tx[0-9]+, x[0-9]+, 16, 5
FAIL: gcc.target/aarch64/insv_1.c scan-assembler movk\tx[0-9]+, 0x1d6b, lsl 32
FAIL: gcc.target/aarch64/lsl_asr_sbfiz.c scan-assembler sbfiz\tw
FAIL: gcc.target/aarch64/sve/tls_preserve_1.c -march=armv8.2-a+sve
scan-assembl
er-not \\tst[rp]\\t[dqv]
FAIL: gcc.target/aarch64/test_frame_16.c scan-assembler-times sub\tsp, sp,
#[0-9
]+ 2
FAIL: gcc.target/aarch64/tst_5.c scan-assembler tst\t(x|w)[0-9]+,[ \t]*255
FAIL: gcc.target/aarch64/tst_5.c scan-assembler tst\t(x|w)[0-9]+,[ \t]*65535
FAIL: gcc.target/aarch64/tst_6.c scan-assembler tst\t(x|w)[0-9]+,[ \t]*65535
FAIL: gcc.target/aarch64/va_arg_3.c scan-assembler-not x7
FAIL: gcc.target/aarch64/vdup_n_1.c scan-assembler-times dup\\tv[0-9]+.16b,
w[0-
9]+ 3
FAIL: gcc.target/aarch64/vdup_n_1.c scan-assembler-times dup\\tv[0-9]+.2d,
x[0-9
]+ 2
FAIL: gcc.target/aarch64/vdup_n_1.c scan-assembler-times dup\\tv[0-9]+.2s,
w[0-9
]+ 2
FAIL: gcc.target/aarch64/vdup_n_1.c scan-assembler-times dup\\tv[0-9]+.4h,
w[0-9
]+ 3
FAIL: gcc.target/aarch64/vdup_n_1.c scan-assembler-times dup\\tv[0-9]+.4s,
w[0-9
]+ 2
FAIL: gcc.target/aarch64/vdup_n_1.c scan-assembler-times dup\\tv[0-9]+.8b,
w[0-9
]+ 3
FAIL: gcc.target/aarch64/vdup_n_1.c scan-assembler-times dup\\tv[0-9]+.8h,
w[0-9
]+ 3
FAIL: gcc.target/aarch64/vect_combine_zeroes_1.c scan-assembler-not
mov\tv[0-9]+
.8b, v[0-9]+.8b
FAIL: g++.dg/ext/pr82625.C -std=gnu++17 (test for excess errors)
>From gcc-bugs-return-619357-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 16:57:47 2018
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Subject: [Bug rtl-optimization/87763] [9.0 Regression] aarch64 target testcases fail after r265398
Date: Fri, 26 Oct 2018 16:57:00 -0000
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--- Comment #1 from Steve Ellcey <sje at gcc dot gnu.org> ---
I looked at one of the failing tests (gcc.target/aarch64/cvtf_1.c)
the code looks worse than before, generating an extra instruction
in each of the routines. Here is an example from one function where
there is an extra fmov that was not there before. The test runs at -O1
but the extra instruction appears at all optimization levels.
void cvt_int32_t_to_float (int a, float b)
{ float c; c = (float) a;
if ( (c - b) > 0.00001) abort();
}
Which used to generate:
cvt_int32_t_to_float:
.LFB0:
.cfi_startproc
scvtf s1, w0
fsub s0, s1, s0
fcvt d0, s0
adrp x0, .LC0
ldr d1, [x0, #:lo12:.LC0]
fcmpe d0, d1
bgt .L9
ret
.L9:
stp x29, x30, [sp, -16]!
.cfi_def_cfa_offset 16
.cfi_offset 29, -16
.cfi_offset 30, -8
mov x29, sp
bl abort
.cfi_endproc
Now generates:
cvt_int32_t_to_float:
.LFB0:
.cfi_startproc
fmov s1, w0
scvtf s1, s1
fsub s1, s1, s0
fcvt d1, s1
adrp x0, .LC0
ldr d0, [x0, #:lo12:.LC0]
fcmpe d1, d0
bgt .L9
ret
.L9:
stp x29, x30, [sp, -16]!
.cfi_def_cfa_offset 16
.cfi_offset 29, -16
.cfi_offset 30, -8
mov x29, sp
bl abort
.cfi_endproc
>From gcc-bugs-return-619358-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 17:28:41 2018
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From: "P at draigBrady dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug preprocessor/83173] C preprocessor generates incorrect linemarkers
Date: Fri, 26 Oct 2018 17:28:00 -0000
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--- Comment #9 from Pádraig Brady <P at draigBrady dot com> ---
Facebook
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From: "doko at debian dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/87764] New: gfortran crashes with illegal code
Date: Fri, 26 Oct 2018 17:41:00 -0000
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Bug ID: 87764
Summary: gfortran crashes with illegal code
Product: gcc
Version: 9.0
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seen on all active versions (test file ends with two newlines):
$ cat test.f90
end program &
$ /usr/lib/gcc-snapshot/bin/gfortran test.f90
f951: Warning: No location in statement
f951: internal compiler error: Segmentation fault
0x7f3381724fbf ???
/build/glibc-hBZSf0/glibc-2.27/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7f3381711b16 __libc_start_main
../csu/libc-start.c:310
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
>From gcc-bugs-return-619360-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 17:50:26 2018
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Subject: [Bug preprocessor/83173] C preprocessor generates incorrect linemarkers
Date: Fri, 26 Oct 2018 17:50:00 -0000
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--- Comment #10 from Mike Gulick <mgulick at mathworks dot com> ---
In hopes of seeing some progress on this bug, I will rebase the patches on the
latest gcc master branch and re-test. I will also refactor the main patch to
separate out the functional fix from the diagnostics change, which will
hopefully make reviewing easier. I'll reply here with a link to the
gcc-patches archive once I have posted them.
>From gcc-bugs-return-619361-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 18:51:29 2018
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Subject: [Bug tree-optimization/87473] [7/8/9 Regression] ICE in create_add_on_incoming_edge, at gimple-ssa-strength-reduction.c:2344
Date: Fri, 26 Oct 2018 18:51:00 -0000
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--- Comment #8 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Author: wschmidt
Date: Fri Oct 26 18:50:51 2018
New Revision: 265543
URL: https://gcc.gnu.org/viewcvs?rev=265543&root=gcc&view=rev
Log:
[gcc]
2018-10-26 Bill Schmidt <wschmidt@linux.ibm.com>
Backport from mainline
2018-10-19 Bill Schmidt <wschmidt@linux.ibm.com>
PR tree-optimization/87473
* gimple-ssa-strength-reduction.c (record_phi_increments_1): For
phi arguments identical to the base expression of the phi
candidate, record a phi-adjust increment of zero minus the index
expression of the hidden basis.
(phi_incr_cost_1): For phi arguments identical to the base
expression of the phi candidate, the difference to compare against
the increment is zero minus the index expression of the hidden
basis, and there is no potential savings from replacing the (phi)
statement.
(ncd_with_phi): For phi arguments identical to the base expression
of the phi candidate, the difference to compare against the
increment is zero minus the index expression of the hidden basis.
(all_phi_incrs_profitable_1): For phi arguments identical to the
base expression of the phi candidate, the increment to be checked
for profitability is zero minus the index expression of the hidden
basis.
[gcc/testsuite]
2018-10-26 Bill Schmidt <wschmidt@linux.ibm.com>
Backport from mainline
2018-10-19 Bill Schmidt <wschmidt@linux.ibm.com>
PR tree-optimization/87473
* gcc.c-torture/compile/pr87473.c: New file.
Added:
branches/gcc-8-branch/gcc/testsuite/gcc.c-torture/compile/pr87473.c
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/gimple-ssa-strength-reduction.c
branches/gcc-8-branch/gcc/testsuite/ChangeLog
>From gcc-bugs-return-619362-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 18:57:18 2018
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Subject: [Bug fortran/68226] [7/8/9 Regression] [OOP] ICE on assignment of pointer-valued function to allocatable
Date: Fri, 26 Oct 2018 18:57:00 -0000
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Paul Thomas <pault at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Paul Thomas <pault at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #7)
> GCC 6 branch is being closed
Actually, for all the current branch versions, including 6.4.1 20180703, the
testcase compiles and runs correctly.
Closing as fixed.
Paul
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Subject: [Bug fortran/87352] [7/8/9 Regression] Large stack usage with new gfortran
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Janne Blomqvist <jb at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jb at gcc dot gnu.org
--- Comment #3 from Janne Blomqvist <jb at gcc dot gnu.org> ---
Might this be related to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84487 ?
>From gcc-bugs-return-619364-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 19:26:52 2018
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Subject: [Bug web/87050] Bump wwwdocs to html5
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87050
--- Comment #12 from Janne Blomqvist <jb at gcc dot gnu.org> ---
Based on a recursive grep of the wwwdocs repo the only remaining use of "xhtml"
is a variable "XHTML" in htdocs/style.mhtml which, AFAICS, doesn't any longer
actually have anything to do with XHTML.
A big thanks to Gerald!
>From gcc-bugs-return-619365-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 19:29:12 2018
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From: "curlypaul924 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87765] New: Internal compiler error: coerce_template_parms (8.2) or cxx_eval_constant_expression (trunk)
Date: Fri, 26 Oct 2018 19:29:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87765
Bug ID: 87765
Summary: Internal compiler error: coerce_template_parms (8.2)
or cxx_eval_constant_expression (trunk)
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
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The following syntactically valid program produces an ICE in
coerce_template_parms on gcc 8.2:
template <int N>
using foo = int;
struct A {
constexpr int bar() const { return 42; }
};
void baz(A a) {
[=](auto c) { return foo<a.bar()> { }; };
}
creduce produced a syntactically invalid program which also causes ICE:
template <int N>
using foo = int;
struct A {
int bar();
};
void baz(A a) {
[](auto foo<a.bar()>
}
x86-64 gcc trunk on godbolt.org also ICEs, but in cxx_eval_constant_expression.
Clang accepts the first snippet, but gcc 7.3 rejects it with "error:
'__closure' is not a constant expression".
Possibly related to (or duplicate of) Bug 86960.
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Subject: [Bug tree-optimization/87473] [7/8/9 Regression] ICE in create_add_on_incoming_edge, at gimple-ssa-strength-reduction.c:2344
Date: Fri, 26 Oct 2018 19:39:00 -0000
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--- Comment #9 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Author: wschmidt
Date: Fri Oct 26 19:38:45 2018
New Revision: 265547
URL: https://gcc.gnu.org/viewcvs?rev=265547&root=gcc&view=rev
Log:
[gcc]
2018-10-26 Bill Schmidt <wschmidt@linux.ibm.com>
Backport from mainline
2018-10-19 Bill Schmidt <wschmidt@linux.ibm.com>
PR tree-optimization/87473
* gimple-ssa-strength-reduction.c (record_phi_increments): For
phi arguments identical to the base expression of the phi
candidate, record a phi-adjust increment of zero minus the index
expression of the hidden basis.
(phi_incr_cost): For phi arguments identical to the base
expression of the phi candidate, the difference to compare against
the increment is zero minus the index expression of the hidden
basis, and there is no potential savings from replacing the (phi)
statement.
(ncd_with_phi): For phi arguments identical to the base expression
of the phi candidate, the difference to compare against the
increment is zero minus the index expression of the hidden basis.
(all_phi_incrs_profitable): For phi arguments identical to the
base expression of the phi candidate, the increment to be checked
for profitability is zero minus the index expression of the hidden
basis.
[gcc/testsuite]
2018-10-26 Bill Schmidt <wschmidt@linux.ibm.com>
Backport from mainline
2018-10-19 Bill Schmidt <wschmidt@linux.ibm.com>
PR tree-optimization/87473
* gcc.c-torture/compile/pr87473.c: New file.
Added:
branches/gcc-7-branch/gcc/testsuite/gcc.c-torture/compile/pr87473.c
Modified:
branches/gcc-7-branch/gcc/ChangeLog
branches/gcc-7-branch/gcc/gimple-ssa-strength-reduction.c
branches/gcc-7-branch/gcc/testsuite/ChangeLog
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87766] New: ICE using __PRETTY_FUNCTION__ in dependent context
Date: Fri, 26 Oct 2018 20:17:00 -0000
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Bug ID: 87766
Summary: ICE using __PRETTY_FUNCTION__ in dependent context
Product: gcc
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Priority: P3
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// g++ -std=c++1z test.cpp
template <class Tp = void>
void test() {
[](auto rhs) { auto ptr = __PRETTY_FUNCTION__; }(42);
}
template void test<>();
The above code ICE's with the error:
internal compiler error: in output_constant, at varasm.c:4971
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Subject: [Bug fortran/77703] [7/8/9 Regression] ICE on assignment to pointer function
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Paul Thomas <pault at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |pault at gcc dot gnu.org
--- Comment #7 from Paul Thomas <pault at gcc dot gnu.org> ---
Created attachment 44907
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44907&action=edit
Patch for the PR
This does the job. I am working on something else right now and will come back
to this in a week or so.
Paul
>From gcc-bugs-return-619369-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 20:19:52 2018
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From: "eric at efcs dot ca" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/87766] ICE using __PRETTY_FUNCTION__ in dependent context
Date: Fri, 26 Oct 2018 20:19:00 -0000
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Eric Fiselier <eric at efcs dot ca> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mpolacek at gcc dot gnu.org
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=84925
--- Comment #1 from Eric Fiselier <eric at efcs dot ca> ---
This doesn't appear to be fixed by gcc.gnu.org/PR84925.
It only seems to occur in GCC trunk and not GCC 8.1/8.2.
>From gcc-bugs-return-619370-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 20:27:14 2018
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Subject: [Bug fortran/71880] pointer to allocatable character
Date: Fri, 26 Oct 2018 20:27:00 -0000
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Paul Thomas <pault at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #11 from Paul Thomas <pault at gcc dot gnu.org> ---
(In reply to Dominique d'Humieres from comment #8)
> The test in comment 2 looks like a duplicate of pr70149. It is fixed at
> revision r265266.
This indeed is fixed on trunk.
I am trying to build up the intestinal fortitude to go back through some of the
recent fixes and apply them to 8-branch.
However, I will close this one now.
Thanks for the report.
Paul
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Subject: [Bug target/87767] New: Missing AVX512 memory broadcast for floating point constant
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Bug ID: 87767
Summary: Missing AVX512 memory broadcast for floating point
constant
Product: gcc
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Target: i386,x86-64
[hjl@gnu-efi-2 broadcast-4]$ cat c.c
#include <immintrin.h>
__m512
foo (__m512 x)
{
return _mm512_add_ps (x, _mm512_set1_ps (2.0f));
}
[hjl@gnu-efi-2 broadcast-4]$ make c.s
/export/build/gnu/tools-build/gcc-test/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/tools-build/gcc-test/build-x86_64-linux/gcc/ -O2 -mavx512f
-S c.c
[hjl@gnu-efi-2 broadcast-4]$ cat c.s
.file "c.c"
.text
.p2align 4
.globl foo
.type foo, @function
foo:
.LFB5186:
.cfi_startproc
vbroadcastss .LC0(%rip), %zmm1
vaddps %zmm1, %zmm0, %zmm0
ret
.cfi_endproc
.LFE5186:
.size foo, .-foo
.section .rodata.cst16,"aM",@progbits,16
.align 16
.LC0:
.long 1073741824
.long 0
.long 0
.long 0
.ident "GCC: (GNU) 9.0.0 20181026 (experimental)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-efi-2 broadcast-4]$
vbroadcastss should be replaced by memory broadcast.
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Subject: [Bug c++/87663] Exorbitant compile times
Date: Fri, 26 Oct 2018 20:46:00 -0000
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--- Comment #3 from Lukas Mosimann <lumosimann at gmail dot com> ---
```
template <typename T, T v>
struct integral_constant {
static constexpr T value = v;
using value_type = T;
using type = integral_constant<T, v>;
};
template <int X, int A, int Z>
struct F : integral_constant<int, //
F<X + (1 << A), A - 1, Z + (1 << A)>::value -
F<X + (1 << A), A - 2, Z>::value> {};
template <int X, int A, int Z>
struct P : integral_constant<int, //
P<X + (1 << A), A - 1, Z + (1 << A)>::value -
P<X + (1 << A), A - 1, Z>::value> {};
template <int X, int Z>
struct F<X, 0, Z> : integral_constant<int, X> {};
template <int X, int Z>
struct F<X, 1, Z> : integral_constant<int, X + 1> {};
template <int X, int Z>
struct P<X, 0, Z> : integral_constant<int, X> {};
template <int X, int Z>
struct P<X, 1, Z> : integral_constant<int, X + 1> {};
int main() {
P_OR_F<0, N, 0>::value;
return 0;
}
```
This is a shorter reproducible without other headers. The problem is the line
`using value_type = T`. I would love to debug this, but I don't know where to
start.
>From gcc-bugs-return-619373-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 21:09:18 2018
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From: "lumosimann at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87663] Exorbitant compile times
Date: Fri, 26 Oct 2018 21:09:00 -0000
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--- Comment #4 from Lukas Mosimann <lumosimann at gmail dot com> ---
Okay one last comment from my side (sorry for this two updates in short
intervals). I tried to further simplify it, and I came up with this code which
I think has the same problem.
```
template <typename T, T v>
struct integral_constant {
static constexpr T value = v;
using value_type = int; // remove this line
};
template <int X, int A>
struct F : integral_constant<int, F<X + (1 << A), A - 1>::value -
F<X, A - 1>::value> {};
template <int X>
struct F<X, 0> : integral_constant<int, X> {};
int main() {
F<0, 15>::value;
return 0;
}
```
`integral_constant` with `value_type` compiles in 32 seconds on my machine.
`integral_constant` without `value_type` compiles in 1.6 seconds.
So we are talking about an 20x increase in compilation time. Things get worse
with larger N, e.g. `F<0, 16>`: 3.5 s vs. 167 s (48x increase).
>From gcc-bugs-return-619374-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 21:17:38 2018
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Subject: [Bug target/87767] Missing AVX512 memory broadcast for constant vector
Date: Fri, 26 Oct 2018 21:17:00 -0000
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H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-26
Summary|Missing AVX512 memory |Missing AVX512 memory
|broadcast for floating |broadcast for constant
|point constant |vector
Ever confirmed|0 |1
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
The same issue for integer:
[hjl@gnu-efi-2 broadcast-4]$ cat i-ymm.c
#include <immintrin.h>
__m256i
foo (__m256i x)
{
return _mm256_add_epi64 (x, _mm256_set1_epi64x (3));
}
[hjl@gnu-efi-2 broadcast-4]$
/export/build/gnu/tools-build/gcc-test/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/tools-build/gcc-test/build-x86_64-linux/gcc/ -O2 -mavx512vl
-S i-ymm.c
[hjl@gnu-efi-2 broadcast-4]$ cat i-ymm.s
.file "i-ymm.c"
.text
.p2align 4
.globl foo
.type foo, @function
foo:
.LFB5186:
.cfi_startproc
vpaddq .LC0(%rip), %ymm0, %ymm0
ret
.cfi_endproc
.LFE5186:
.size foo, .-foo
.section .rodata.cst32,"aM",@progbits,32
.align 32
.LC0:
.quad 3
.quad 3
.quad 3
.quad 3
.ident "GCC: (GNU) 9.0.0 20181026 (experimental)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-efi-2 broadcast-4]$
>From gcc-bugs-return-619375-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 21:58:05 2018
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Subject: [Bug target/59784] Nios2: Wrong code generation for fextsd custom instruction
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sandra at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |sandra at gcc dot gnu.org
Resolution|--- |FIXED
--- Comment #2 from sandra at gcc dot gnu.org ---
Closing this issue as it was fixed in 2014.
>From gcc-bugs-return-619376-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 22:01:23 2018
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Subject: [Bug rtl-optimization/62130] ld.exe: nios2_work.elf: Not enough room for program headers, try linking with -N
Date: Fri, 26 Oct 2018 22:01:00 -0000
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sandra at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
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CC| |sandra at gcc dot gnu.org
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--- Comment #2 from sandra at gcc dot gnu.org ---
Closing this issue since no test case was ever provided to demonstrate it's a
gcc bug instead of a linker or BSP issue.
>From gcc-bugs-return-619377-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 22:02:53 2018
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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/87106] Group move and destruction of the source, where possible, for speed
Date: Fri, 26 Oct 2018 22:02:00 -0000
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--- Comment #9 from Marc Glisse <glisse at gcc dot gnu.org> ---
I was looking into using relocation in std::swap. For a type like deque (if we
ignore the swap overload), using memcpy is really worth it. For a more simple
type like int, using memcpy loses type information, which can hurt other
optimizations, so I'd rather stick to the typed assignments for swap<int>. It
isn't obvious what the right compromise is. Maybe types that are trivially
relocatable but not trivially movable and destructible? Or just non-trivial?
That might work if libstdc++ wasn't stuck with a legacy, non-trivial
pair<int,int>.
For the array swap, I could use a large intermediate buffer on the side (memcpy
really shines on large regions), possibly as large as the full array, but I
would need to cap it to some safe size (hard to define).
By the way, when swapping ranges of a type that does not specialize/overload
swap, it seems wasteful to call swap on each element, because it creates a new
temporary object for each element instead of reusing the same one. It may be
possible to detect if swap would call an overload in a different namespace, but
it seems harder to detect if std::swap was specialized).
>From gcc-bugs-return-619378-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 22:46:26 2018
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Subject: [Bug rtl-optimization/87763] [9.0 Regression] aarch64 target testcases fail after r265398
Date: Fri, 26 Oct 2018 22:46:00 -0000
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-26
Ever confirmed|0 |1
--- Comment #2 from Segher Boessenkool <segher at gcc dot gnu.org> ---
The two relevant insns are
(insn 35 4 40 2 (set (reg:SI 33 v1 [99])
(reg:SI 0 x0 [ a ])) "87763.c":2:1 46 {*movsi_aarch64}
(nil))
(insn 7 10 8 2 (set (reg:SF 33 v1 [orig:95 c ] [95])
(float:SF (reg:SI 33 v1 [99]))) "87763.c":2:14 921 {floatsisf2}
(nil))
(this is the LRA dump; IRA already allocated those registers, LRA didn't
change anything).
99 was assigned a floating point register:
Choosing alt 12 in insn 35: (0) w (1) rZ {*movsi_aarch64}
Choosing alt 0 in insn 7: (0) =w (1) w {floatsisf2}
an integer register would be alt 0 (r<-r), resp. alt 1 (w<-?r). So apparently
the "?" was costed as more strongly than the cost of the removable register
move, or IRA didn't see that move was unnecessary.
Confirmed, btw.
>From gcc-bugs-return-619379-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Oct 26 23:06:48 2018
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Subject: [Bug c++/87768] New: ICE in tsubst_copy_and_build, at cp/pt.c:19002 when using concepts
Date: Fri, 26 Oct 2018 23:06:00 -0000
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Bug ID: 87768
Summary: ICE in tsubst_copy_and_build, at cp/pt.c:19002 when
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Product: gcc
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Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gcc-bugs at marehr dot dialup.fu-berlin.de
Target Milestone: ---
Hello gcc-team,
compiling this program with `g++-8 -fconcepts -std=c++17 concept_ice.cpp`
```
struct a {};
template <bool> using b = a;
template <typename> struct c;
template <typename d>
requires requires(d e) { e[0]; }
struct c<d> {
static constexpr bool f = [] { return false; }();
};
struct g : b<c<unsigned[]>::f> {};
```
yields this ICE:
```
concept_ice.cpp: In instantiation of ‘constexpr const bool c<unsigned int
[]>::f’:
concept_ice.cpp:11:29: required from here
concept_ice.cpp:6:29: internal compiler error: in tsubst_copy_and_build, at
cp/pt.c:19002
requires requires(d e) { e[0]; }
~^
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.archlinux.org/> for instructions.
```
g++-7.3.1 compiles this just fine.
Thank you for your work!
>From gcc-bugs-return-619380-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 00:21:43 2018
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From: "John.Ericson at Obsidian dot Systems" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug driver/87758] --print-file-name= ignores -L
Date: Sat, 27 Oct 2018 00:21:00 -0000
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--- Comment #2 from John Ericson <John.Ericson at Obsidian dot Systems> ---
Indeed it has. Are you worried about the breakage then? Could we make a new
--print-library-name= ? The old name is pretty bad anyways, so I'd like a flag
with that name to exist regardless.
I am still unclear on the degree to which -L is really a GCC concern vs just
something forwarded to the linker. If the latter, maybe I should also open a
binutils issue so as not to induce a layer violation? The GCC
--print-library-name= would use the linker --print-library-name= so as to not
track something (-L path) it otherwise doesn't need to track.
------
Also, if all this sounds like a rather theoretical layer violation,
https://ghc.haskell.org/trac/ghc/timeline?from=2018-10-26T02%3A26%3A15Z&precision=second
is an example of a practical ramification of this. The gist of this scenario is
we have another compiler, GHC, that uses gcc. Wrapping gcc to add -L is a leaky
abstraction because GHC uses --print-file-name to get at the library location.
It itself will turn its own -L into -B to get around this issue, but any
interpositioned -L will do nothing. Of course the warpper script could also use
-B, but that sure feels like a sledgehammer to solve this problem.
>From gcc-bugs-return-619381-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 01:23:26 2018
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From: "mte.zych at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug driver/87769] New: GCC build from source uses headers and libraries from directories host machine.
Date: Sat, 27 Oct 2018 01:23:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87769
Bug ID: 87769
Summary: GCC build from source uses headers and libraries from
directories host machine.
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
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Hi ;)
I'm building GCC from source using the following commands:
$ cd /home/mzych
$ git clone https://github.com/gcc-mirror/gcc.git gcc-source
$ cd gcc-source
$ ./contrib/download_prerequisites
$ cd ..
$ mkdir gcc-build
$ cd gcc-build
$ ../gcc-source/configure -v \
--build=x86_64-linux-gnu \
--host=x86_64-linux-gnu \
--target=x86_64-linux-gnu \
--prefix=/home/mzych/gcc \
--enable-languages=c,c++ \
--disable-multilib
$ make -j 4
$ make install
However, I've noticed that GCC build from source
includes system headers and links system libraries:
$ /home/mzych/gcc/bin/g++ -x c++ -E -v -
...
---> ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory
"/home/mzych/gcc/lib/gcc/x86_64-linux-gnu/9.0.0/../../../../x86_64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/home/mzych/gcc/lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0
/home/mzych/gcc/lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0/x86_64-linux-gnu
/home/mzych/gcc/lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0/backward
/home/mzych/gcc/lib/gcc/x86_64-linux-gnu/9.0.0/include
---> /usr/local/include
/home/mzych/gcc/include
/home/mzych/gcc/lib/gcc/x86_64-linux-gnu/9.0.0/include-fixed
---> /usr/include/x86_64-linux-gnu
---> /usr/include
$ /home/mzych/gcc/bin/g++-std=c++14 -E foo.cpp
# 1 "foo.cpp"
...
# 1 "/home/mzych/gcc/include/c++/9.0.0/cstdint" 1 3
# 32 "/home/mzych/gcc/include/c++/9.0.0/cstdint" 3
...
---> # 1 "/usr/include/features.h" 1 3 4
---> # 424 "/usr/include/features.h" 3 4
---> # 1 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 1 3 4
---> # 427 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 3 4
...
I would expect GCC build from source to be standalone and independent from host
machine.
Mixing C++ standard library headers from
GCC installed on host machine and GCC build from source can cause conflicts,
because they could be in competently different versions.
BTW, I observed the same behavior with link directories,
which results in GCC using link directories from host machine.
Am I doing something incorrectly (like not configuring GCC properly)
or this is actual issue with GCC?
Thanks, Mateusz
>From gcc-bugs-return-619382-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 01:29:38 2018
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Subject: [Bug driver/87769] GCC build from source uses headers and libraries from directories host machine.
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
GCC is not independent from the libc's headers. GCC DOES NOT INCLUDE A LIBC.
Glibc is the libc that is used on many Linux distro (but not the only one out
there). If you want to build a completely self contained compiler/libraries,
there are many directions on the internet for that.
NOTE the standard C++ headers include the standard C headers in the end.
>From gcc-bugs-return-619383-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 02:30:51 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/87106] Group move and destruction of the source, where possible, for speed
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--- Comment #10 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> ---
> Still better than duplicating the whole class IMO.
The `optional` example in P1144R0 Appendix B looks scarier than I should have.
For one thing, I omitted all the boring user-facing API of `optional` (emplace,
reset, has_value, operator bool, operator*, operator->, ...) which would be
implemented in the top level and thus shared by everyone. For another thing, I
showed the metaprogramming for BOTH trivially relocatable AND trivially
constructible/destructible in the same example. Adding trivial relocatability
to a library type doesn't involve any duplication of member function
implementations. It's tedious for sure, but mechanical.
Here's the commit where I trivially-relocatable-ized `std::deque`. 34 lines
added, 18 more lines changed. There's some duplication, but it's not literally
"duplicating the whole class."
https://github.com/llvm-mirror/libcxx/commit/cccc6d330fba37852455a3905b402b1aabe05474#diff-38adc80cec663f2f29c22e9ffc0de912
> I was looking into using relocation in std::swap. ... Maybe types that are trivially relocatable but not trivially movable and destructible? Or just non-trivial?
My commit for `std::swap` is here:
https://github.com/Quuxplusone/libcxx/commit/4d89aa95a7da86d1671d3e4441967782399fc3f9#diff-d436eb0fd9de10b54a828ce6435f7e81
It's extremely naive. I just say, if the type is_trivially_relocatable, then we
use memcpy --- EXCEPT, if the type is_empty, then we should NOT use memcpy,
because that is highly likely to break real code.
https://quuxplusone.github.io/blog/2018/07/13/trivially-copyable-corner-cases/
> For the array swap, I could use a large intermediate buffer on the side (memcpy really shines on large regions), possibly as large as the full array, but I would need to cap it to some safe size (hard to define).
A couple of people have mentioned to me that libc is conspicuously missing a
`memswap(void *a, void *b, size_t n)` primitive (such as would be used
internally by `qsort`). If libc guaranteed us an efficient implementation of
`memswap`, we wouldn't need to do so much micro-optimization at the C++ level.
> By the way, when swapping ranges of a type that does not specialize/overload swap, it seems wasteful to call swap on each element, because it creates a new temporary object for each element instead of reusing the same one.
I'm not sure I follow. Are you relying on the premise that move-constructing an
object, and then destructing a moved-from object, is more expensive than
move-assigning into a moved-from object? I would expect move-assigning to be
*no cheaper* than move-constructing, and so constructing and destructing a new
temporary for each element ought to be *no more expensive* (and possibly
cheaper) than reusing the same one.
But I have no actual benchmark numbers. Do you?
Re detecting overloads/specializations of std::swap, I think both are
impossible, but I'm curious what you're thinking of, BUT I bet it's off-topic
for this issue, so maybe you could email me your idea? :)
>From gcc-bugs-return-619384-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 06:35:28 2018
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Subject: [Bug tree-optimization/87473] [7/8/9 Regression] ICE in create_add_on_incoming_edge, at gimple-ssa-strength-reduction.c:2344
Date: Sat, 27 Oct 2018 06:35:00 -0000
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Arseny Solokha <asolokha at gmx dot com> changed:
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----------------------------------------------------------------------------
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--- Comment #10 from Arseny Solokha <asolokha at gmx dot com> ---
So fixed everywhere.
>From gcc-bugs-return-619385-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 08:20:12 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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Iain Sandoe <iains at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #44901|0 |1
is obsolete| |
Status|NEW |WAITING
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--- Comment #61 from Iain Sandoe <iains at gcc dot gnu.org> ---
Created attachment 44908
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44908&action=edit
Proposed 8.x patch
here is the revised patch for the post wi::int_traits world. Works For Me(tm)
Please confirm for your use-case.
I expect this variant will be suitable for trunk (testing later)
A slightly different version will be needed for 7.x (TBD).
>From gcc-bugs-return-619386-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 08:36:39 2018
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Subject: [Bug rtl-optimization/87701] [9 Regression] ICE in elimination_costs_in_insn, at reload1.c:3640 since r265398
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David Binderman <dcb314 at hotmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dcb314 at hotmail dot com
--- Comment #3 from David Binderman <dcb314 at hotmail dot com> ---
Code compiles ok at -O2, so -O3 required.
Bug seems to first appear somewhere between revision 265367 and 265411.
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Subject: [Bug rtl-optimization/85410] ICE in create_block_for_bookkeeping, at sel-sched.c:4563
Date: Sat, 27 Oct 2018 08:54:00 -0000
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--- Comment #3 from Arseny Solokha <asolokha at gmx dot com> ---
Testcase from #c2 doesn't fail for me anymore w/ the current trunk snapshot (as
of r265361), but the following one does:
int py, up;
void
ro (int *tr, int et)
{
while (et < 1)
{
int s7 = !!*tr ? 0 : py;
if (s7 != 0)
{
}
else
{
up /= 2;
if (py * py == 0)
tr = &py;
}
++et;
}
}
% x86_64-unknown-linux-gnu-gcc-9.0.0-alpha20181021 -O1 -fschedule-insns
-fsel-sched-pipelining -fselective-scheduling -fvar-tracking-assignments
-fno-if-conversion -fno-tree-loop-im -w -c ebmjprna.c
during RTL pass: sched1
ebmjprna.c: In function 'ro':
ebmjprna.c:23:1: internal compiler error: in create_block_for_bookkeeping, at
sel-sched.c:4563
23 | }
| ^
0x65a9e8 create_block_for_bookkeeping
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:4563
0x65a9e8 find_place_for_bookkeeping
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:4700
0x65a9e8 generate_bookkeeping_insn
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:4800
0x65a9e8 move_op_at_first_insn
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:6077
0xc9016c code_motion_path_driver
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:6669
0xc90516 code_motion_process_successors
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:6356
0xc90516 code_motion_path_driver
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:6622
0xc90516 code_motion_process_successors
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:6356
0xc90516 code_motion_path_driver
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:6622
0xc93292 move_op
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:6714
0xc93292 move_exprs_to_boundary
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:5237
0xc93292 schedule_expr_on_boundary
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:5450
0xc951cc fill_insns
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:5592
0xc951cc schedule_on_fences
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:7366
0xc951cc sel_sched_region_2
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:7504
0xc96a56 sel_sched_region_1
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:7546
0xc9822e sel_sched_region(int)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:7647
0xc9822e sel_sched_region(int)
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:7632
0xc99141 run_selective_scheduling()
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sel-sched.c:7733
0xc78edd rest_of_handle_sched
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181021/work/gcc-9-20181021/gcc/sched-rgn.c:3718
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Subject: [Bug libstdc++/87106] Group move and destruction of the source, where possible, for speed
Date: Sat, 27 Oct 2018 08:58:00 -0000
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--- Comment #11 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Arthur O'Dwyer from comment #10)
> Here's the commit where I trivially-relocatable-ized `std::deque`. 34 lines
> added, 18 more lines changed. There's some duplication, but it's not
> literally "duplicating the whole class."
Indeed. It requires defaulting some methods in the outer class. And it requires
some artificial base classes, something I've been fighting against with
[[unique_address]]. But it looks doable...
> > I was looking into using relocation in std::swap. ... Maybe types that are trivially relocatable but not trivially movable and destructible? Or just non-trivial?
>
> My commit for `std::swap` is here:
> https://github.com/Quuxplusone/libcxx/commit/
> 4d89aa95a7da86d1671d3e4441967782399fc3f9#diff-
> d436eb0fd9de10b54a828ce6435f7e81
> It's extremely naive. I just say, if the type is_trivially_relocatable, then
> we use memcpy --- EXCEPT, if the type is_empty, then we should NOT use
> memcpy, because that is highly likely to break real code.
> https://quuxplusone.github.io/blog/2018/07/13/trivially-copyable-corner-
> cases/
Those are real pre-existing problems. As long as we deal with vector<T>, we
know that T is the real type so we are safe. But indeed for one-element
functions like swap it is more dangerous.
I was considering not just cases that are dangerous, but also cases (like int)
that are safe but where memcpy might hinder some optimizations using tbaa.
> I'm not sure I follow. Are you relying on the premise that move-constructing
> an object, and then destructing a moved-from object, is more expensive than
> move-assigning into a moved-from object? I would expect move-assigning to be
> *no cheaper* than move-constructing, and so constructing and destructing a
> new temporary for each element ought to be *no more expensive* (and possibly
> cheaper) than reusing the same one.
For a type that always has some memory allocated, say std::list in visual
studio, constructing+destructing means allocating and deallocating a sentinel,
which can be skipped when assigning.
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Subject: [Bug fortran/87352] [7/8/9 Regression] Large stack usage with new gfortran
Date: Sat, 27 Oct 2018 10:11:00 -0000
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--- Comment #4 from Jeremy Sanders <jeremy at jeremysanders dot net> ---
Janne: This problem is also present on version 7, whereas the other bug is new
in 8. There may be a relation, however.
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Subject: [Bug fortran/86907] [9 Regression] bogus warning "No location in expression near"
Date: Sat, 27 Oct 2018 10:27:00 -0000
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--- Comment #8 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Author: tkoenig
Date: Sat Oct 27 10:26:23 2018
New Revision: 265559
URL: https://gcc.gnu.org/viewcvs?rev=265559&root=gcc&view=rev
Log:
2018-10-27 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/86907
* frontend-passes.c (check_locus_code): Add information that
warning about missing location information points to an
inconsisten internal state.
(check_locus_expr): Likewise.
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/frontend-passes.c
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Subject: [Bug fortran/86907] [9 Regression] bogus warning "No location in expression near"
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Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
--- Comment #9 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
This makes the error message a litte bit clearer, to make sure
it is understood that this is the compiler's fault, not the user's.
However, I cannot reproduce the original problem.
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
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--- Comment #62 from Douglas Mencken <dougmencken at gmail dot com> ---
(In reply to Iain Sandoe from comment #61)
> Created attachment 44908 [details]
> Proposed 8.x patch
>
> here is the revised patch for the post wi::int_traits world. Works For Me(tm)
>
> Please confirm for your use-case.
It works for meâ„¢ too
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Sat, 27 Oct 2018 11:35:00 -0000
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Douglas Mencken <dougmencken at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #44902|0 |1
is obsolete| |
--- Comment #63 from Douglas Mencken <dougmencken at gmail dot com> ---
Created attachment 44909
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44909&action=edit
8.2iain-pr78468.s
Assembly of pr78468.s by GCC 8.2 with Iain’s patch
--- 8.2vanilla-pr78468.s
+++ 8.2iain-pr78468.s
@@ -85,7 +85,7 @@
li r7,0
li r5,0
li r4,0
- addi r2,r1,72
+ addi r2,r1,80
stw r6,60(r1)
stw r2,56(r1)
li r6,0
@@ -118,7 +118,7 @@
li r8,0
li r5,0
li r4,0
- addi r2,r1,72
+ addi r2,r1,80
stw r6,64(r1)
stw r7,60(r1)
li r3,0
@@ -152,7 +152,7 @@
li r7,0
li r5,0
li r4,0
- addi r2,r1,72
+ addi r2,r1,80
stw r6,60(r1)
stw r2,56(r1)
li r6,0
@@ -185,7 +185,7 @@
li r8,0
li r5,0
li r4,0
- addi r2,r1,72
+ addi r2,r1,80
stw r6,64(r1)
stw r7,60(r1)
li r3,0
@@ -286,7 +286,7 @@
li r7,0
li r5,0
li r4,0
- addi r2,r1,103
+ addi r2,r1,111
stw r6,60(r1)
rlwinm r2,r2,0,0,26
li r6,0
@@ -320,7 +320,7 @@
li r8,0
li r5,0
li r4,0
- addi r2,r1,103
+ addi r2,r1,111
stw r6,64(r1)
rlwinm r2,r2,0,0,26
stw r7,60(r1)
>From gcc-bugs-return-619394-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 11:39:58 2018
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From: "juergen.reuter at desy dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/86907] [9 Regression] bogus warning "No location in expression near"
Date: Sat, 27 Oct 2018 11:39:00 -0000
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--- Comment #10 from Jürgen Reuter <juergen.reuter at desy dot de> ---
(In reply to Thomas Koenig from comment #9)
> This makes the error message a litte bit clearer, to make sure
> it is understood that this is the compiler's fault, not the user's.
>
> However, I cannot reproduce the original problem.
Dear Thomas, I didn't check your changes (but they only modify the warning
message as far as I understand). I already confirmed to Dominique that for the
code I submitted (and also our full code) the warning does not appear any more.
>From gcc-bugs-return-619395-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 11:42:29 2018
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Subject: [Bug fortran/86907] [9 Regression] bogus warning "No location in expression near"
Date: Sat, 27 Oct 2018 11:42:00 -0000
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Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |WORKSFORME
--- Comment #11 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
OK, sowe can close this.
>From gcc-bugs-return-619396-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 13:48:59 2018
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Subject: [Bug fortran/85896] ICE in gfc_convert_constant(): Unexpected type
Date: Sat, 27 Oct 2018 13:48:00 -0000
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Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tkoenig at gcc dot gnu.org
--- Comment #3 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
(In reply to G. Steinmetz from comment #0)
> Affects versions down to at least 4.8 :
>
>
> $ cat z1.f90
> program p
> integer :: min
> print *, min('a','b')
> end
>
>
> $ cat z2.f90
> program p
> real :: max
> print *, max('a','b')
> end
>
What is the expected output? Does this declare a new variable "min"
or "max", or should the result simply be 'a' (or 'b')?
I have looked at the standard, but didn't find anything relevent.
>From gcc-bugs-return-619397-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 14:07:04 2018
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From: "konraddabrowski at yahoo dot co.uk" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87770] New: ICE in type_dependent_expression_p, at cp/pt.c:25230
Date: Sat, 27 Oct 2018 14:07:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87770
Bug ID: 87770
Summary: ICE in type_dependent_expression_p, at cp/pt.c:25230
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: konraddabrowski at yahoo dot co.uk
Target Milestone: ---
This affects g++ 8 and trunk (tested on r265559), but not 7.3.0. It first
occurs in r249323.
The corresponding patch (r249333) in the g++7 branch doesn't seem to cause
problems there.
This may be a duplicate of bug 87714.
$ g++ -v -c equals3.cc
Using built-in specs.
COLLECT_GCC=/home/sage/ppl/bin4/bin/g++
Target: x86_64-pc-linux-gnu
Configured with: /home/sage/gcc/configure --prefix=/home/sage/ppl/bin4
--enable-languages=c,c++
Thread model: posix
gcc version 9.0.0 20181027 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-v' '-c' '-shared-libgcc' '-mtune=generic' '-march=x86-64'
/home/sage/ppl/bin4/libexec/gcc/x86_64-pc-linux-gnu/9.0.0/cc1plus -quiet -v
-imultiarch x86_64-linux-gnu -D_GNU_SOURCE equals3.cc -quiet -dumpbase
equals3.c
c -mtune=generic -march=x86-64 -auxbase equals3 -version -o /tmp/cc7QKAEq.s
GNU C++14 (GCC) version 9.0.0 20181027 (experimental) (x86_64-pc-linux-gnu)
compiled by GNU C version 9.0.0 20181027 (experimental), GMP version
6.1.2, MPFR version 4.0.1, MPC version 1.1.0, isl version isl-0.20-GMP
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory
"/home/sage/ppl/bin4/lib/gcc/x86_64-pc-linux-gnu/9.0.0/../../../../x86_64-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/home/sage/ppl/bin4/lib/gcc/x86_64-pc-linux-gnu/9.0.0/../../../../include/c++/9.0.0
/home/sage/ppl/bin4/lib/gcc/x86_64-pc-linux-gnu/9.0.0/../../../../include/c++/9.0.0/x86_64-pc-linux-gnu
/home/sage/ppl/bin4/lib/gcc/x86_64-pc-linux-gnu/9.0.0/../../../../include/c++/9.0.0/backward
/home/sage/ppl/bin4/lib/gcc/x86_64-pc-linux-gnu/9.0.0/include
/usr/local/include
/home/sage/ppl/bin4/include
/home/sage/ppl/bin4/lib/gcc/x86_64-pc-linux-gnu/9.0.0/include-fixed
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
GNU C++14 (GCC) version 9.0.0 20181027 (experimental) (x86_64-pc-linux-gnu)
compiled by GNU C version 9.0.0 20181027 (experimental), GMP version
6.1.2, MPFR version 4.0.1, MPC version 1.1.0, isl version isl-0.20-GMP
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 7f3b9e82dac49b25cf1b2683fd4c3f1b
equals3.cc: In instantiation of ‘d< <template-parameter-1-1> >::d(const d<e>&,
a) [with e = c; <template-parameter-1-1> = int]’:
equals3.cc:21:8: required from here
equals3.cc:15:18: internal compiler error: in type_dependent_expression_p, at
cp/pt.c:25230
15 | for (B g, h; g != h;)
| ~~^~~~
0x6446f6 type_dependent_expression_p(tree_node*)
/home/sage/gcc/gcc/cp/pt.c:25230
0x6446f6 type_dependent_expression_p(tree_node*)
/home/sage/gcc/gcc/cp/pt.c:25069
0x97c0fd uses_template_parms(tree_node*)
/home/sage/gcc/gcc/cp/pt.c:10036
0x98453f tsubst_copy
/home/sage/gcc/gcc/cp/pt.c:15438
0x99ea41 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
/home/sage/gcc/gcc/cp/pt.c:18907
0x99f1ae tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
/home/sage/gcc/gcc/cp/pt.c:18694
0x99f418 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
/home/sage/gcc/gcc/cp/pt.c:18309
0x985007 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
/home/sage/gcc/gcc/cp/pt.c:17455
0x985807 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
/home/sage/gcc/gcc/cp/pt.c:16797
0x98506b tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
/home/sage/gcc/gcc/cp/pt.c:16939
0x986ff5 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
/home/sage/gcc/gcc/cp/pt.c:16636
0x98506b tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
/home/sage/gcc/gcc/cp/pt.c:16939
0x9b2f97 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
/home/sage/gcc/gcc/cp/pt.c:16621
0x9b2f97 instantiate_decl(tree_node*, bool, bool)
/home/sage/gcc/gcc/cp/pt.c:24107
0x9b6d0b instantiate_pending_templates(int)
/home/sage/gcc/gcc/cp/pt.c:24223
0x8db400 c_parse_final_cleanups()
/home/sage/gcc/gcc/cp/decl2.c:4709
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
----------------------------------------
Minimal working example: equals3.cc:
enum a { b };
class c;
class B {
public:
bool operator!=(B);
};
template <typename> class d {
public:
d();
template <typename e> d(const d<e> &, a = b);
void f(d);
};
template <> template <typename e> d<int>::d(const d<e> &, a);
template <> template <typename e> d<int>::d(const d<e> &, a) {
for (B g, h; g != h;)
;
}
void i() {
d<int> j;
d<c> k;
j.f(k);
}
>From gcc-bugs-return-619398-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 14:57:47 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Sat, 27 Oct 2018 14:57:00 -0000
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Iain Sandoe <iains at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |ASSIGNED
--- Comment #64 from Iain Sandoe <iains at gcc dot gnu.org> ---
so all languages, m32/m64, --enable-checking=all,rtl,tree trunk bootstrap
completed without error (with the patch above + one to enable Ada to work on
Darwin9).
"Only" 16h of CPU time on a 2G5 cpu ;)
Smoke-tested only; full suite will take "some time".
So - at least w.r.t the boostrap bug, I'm declaring victory for trunk/8.x and
will do a second revision for 7.x (unless it can be proven not to be needed
there).
@segher - still OK for application or would you like me to post the revised
patch?
(I want to modify the comment slightly to note that the FRAME_GROWS_DOWNWARD
case is the only one relevant here, which is why the other arm of the original
ternary got removed).
>From gcc-bugs-return-619399-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 15:31:41 2018
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Sat, 27 Oct 2018 15:31:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85669
--- Comment #65 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Iain: This is fine for trunk and all open branches you want it on. Thanks!
>From gcc-bugs-return-619400-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 16:02:20 2018
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Subject: [Bug rtl-optimization/87701] [9 Regression] ICE in elimination_costs_in_insn, at reload1.c:3640 since r265398
Date: Sat, 27 Oct 2018 16:02:00 -0000
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed|2018-10-23 00:00:00 |2018-10-27
Ever confirmed|0 |1
--- Comment #4 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Confirmed.
>From gcc-bugs-return-619401-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 16:05:38 2018
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Subject: [Bug ada/87771] New: My first 3d printer, and I messed up trying to update the .ini file. So, I'm trying to put the original software back in it, and I get this error
Date: Sat, 27 Oct 2018 16:05:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87771
Bug ID: 87771
Summary: My first 3d printer, and I messed up trying to update
the .ini file. So, I'm trying to put the original
software back in it, and I get this error
Product: gcc
Version: lto
Status: UNCONFIRMED
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Assignee: unassigned at gcc dot gnu.org
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Created attachment 44910
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44910&action=edit
Note++ Marlin error
I got the Arduino software off the Windows store, and followed the directions
given by Thomas Sanladerer on his video on how to upgrade the Marlin software.
I downloaded the u8glib_arduino_v1.17 zip file, and had the software include it
in the libraries.
I have re compiled 4 times, even after opening the "Manage Libraries" so they
can update...and I still get the same errors.
I don't know how to save in a .i File, but I did copy and paste it into a
Note++.
I hope you can help me, and I really appreciate what you do!
Sincerely,
Donna Ory
>From gcc-bugs-return-619402-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 16:12:16 2018
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Subject: [Bug rtl-optimization/87701] [9 Regression] ICE in elimination_costs_in_insn, at reload1.c:3640 since r265398
Date: Sat, 27 Oct 2018 16:12:00 -0000
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--- Comment #5 from Segher Boessenkool <segher at gcc dot gnu.org> ---
I see the problem. Mine.
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Subject: [Bug rtl-optimization/87701] [9 Regression] ICE in elimination_costs_in_insn, at reload1.c:3640 since r265398
Date: Sat, 27 Oct 2018 16:16:00 -0000
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |segher at gcc dot gnu.org
--- Comment #6 from Segher Boessenkool <segher at gcc dot gnu.org> ---
We start off with
(insn 36 35 9 2 (set (reg:V4SI 104)
(subreg:V4SI (reg:TI 1 dx [ b ]) 0)) "87701.cc":13:31 -1
(expr_list:REG_DEAD (reg:DI 2 cx)
(expr_list:REG_DEAD (reg:DI 1 dx)
(nil))))
and replace that with
(insn 41 35 42 2 (set (reg:V4SI 107)
(reg:TI 1 dx [ b ])) "87701.cc":13:31 -1
(expr_list:REG_DEAD (reg:TI 1 dx [ b ])
(nil)))
42: r104:V4SI=r107:V4SI
REG_DEAD r107:V4SI
(no long form dump for that last one, sorry). Note the subreg has
gone missing. So which is correct here: with or without subreg?
>From gcc-bugs-return-619404-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 16:25:25 2018
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Subject: [Bug rtl-optimization/87701] [9 Regression] ICE in elimination_costs_in_insn, at reload1.c:3640 since r265398
Date: Sat, 27 Oct 2018 16:25:00 -0000
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--- Comment #7 from Segher Boessenkool <segher at gcc dot gnu.org> ---
I have a patch.
rtl.texi has this to say about subregs of hard regs:
===
@item hard registers
It is seldom necessary to wrap hard registers in @code{subreg}s; such
registers would normally reduce to a single @code{reg} rtx. This use of
@code{subreg}s is discouraged and may not be supported in the future.
===
So why is the i386 backend doing this? It seems wrong.
>From gcc-bugs-return-619405-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 16:55:06 2018
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From: "stypox at pm dot me" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87772] New: Crash with variadic template, constexpr constructor for templated non-literal type, using declaration
Date: Sat, 27 Oct 2018 16:55:00 -0000
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Bug ID: 87772
Summary: Crash with variadic template, constexpr constructor
for templated non-literal type, using declaration
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: stypox at pm dot me
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Created attachment 44911
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44911&action=edit
Preprocessed code from the main.cpp file in the description
* Version:
$g++ --version
g++ (Debian 8.2.0-7) 8.2.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* To compile I used (but -save-temps doesn't change anything):
g++ -Wall -g -std=c++17 -o main.o -c main.cpp -save-temps
* Running that command generates the attached preprocessed code and gives this
error:
$g++ -Wall -g -std=c++17 -o main.o -c main.cpp -save-temps
main.cpp: In instantiation of ‘struct
Parser<std::array<std::array<SentenceBase<void>, 1>, 1> >’:
main.cpp:24:53: required from here
main.cpp:16:8: internal compiler error: in is_base_type, at dwarf2out.c:12911
struct Parser {
^~~~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-8/README.Bugs> for instructions.
* This is the main.cpp file, in case it is needed. It contains much nonsense
because I removed all the things that didn't change the result of the
compilation. When I write "/* or whatever */" I mean that the value/type there
is just a placeholder and could be anything.
#include <array>
#include <string>
template<typename T>
struct SentenceBase {
std::string m_code;
constexpr SentenceBase() {}
};
template <bool ... Conditions> struct true_all {};
template <> struct true_all<>
: std::true_type {};
template <bool ... Conditions> struct true_all<false, Conditions...> :
std::false_type {};
template <bool ... Conditions> struct true_all<true, Conditions...> :
true_all<Conditions...>::type {};
template<typename ... Container>
struct Parser {
using rightTypesGuard =
std::enable_if_t<true_all<std::is_literal_type_v<typename
Container::value_type>...>::value>;
};
template<typename ... Types>
auto make_parser(Types... sentences) -> Parser<std::array<Types, 1 /* or
whatever */>...> {}
int main() {
make_parser(std::array<SentenceBase<void /* or whatever */>, 1 /* or
whatever */>{{}});
}
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From: "dory at satx dot rr.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/87771] My first 3d printer, and I messed up trying to update the .ini file. So, I'm trying to put the original software back in it, and I get this error
Date: Sat, 27 Oct 2018 17:26:00 -0000
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--- Comment #1 from Donna Ory <dory at satx dot rr.com> ---
I'm not a programmer, or anything like that, so I wouldn't know the first thing
about adding code or changing it.
That said, I just want my Tevo Flash to work as it should before I made the
mistake.
If I need to download the latest version of the U8glib file to fix the first
part, then let me know that. But the other part, I don't have a clue why it
would come up.
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Subject: [Bug c++/87770] ICE in type_dependent_expression_p, at cp/pt.c:25230
Date: Sat, 27 Oct 2018 18:25:00 -0000
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ensadc at mailnesia dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ensadc at mailnesia dot com
--- Comment #1 from ensadc at mailnesia dot com ---
Reduced:
template <typename> struct d {
template <typename e> d(e);
};
template <> template <typename e> d<int>::d(e);
template <> template <typename e> d<int>::d(e) {
long g;
(void)g;
}
template d<int>::d(char);
>From gcc-bugs-return-619408-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 18:35:33 2018
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From: "tkoenig at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/70914] ICE in gfc_get_symbol_decl, at fortran/trans-decl.c:1655
Date: Sat, 27 Oct 2018 18:35:00 -0000
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Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #6 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
I don't think z6.f90 and z7.f90 are valid - the pointer points
nowhere sensible, and the assignment can store to anywhere or
to NULL.
I'd say this is fixed.
>From gcc-bugs-return-619409-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 19:55:44 2018
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Subject: [Bug bootstrap/87741] Don't build readline/libreadline.a in GDB, when --with-system-readline is supplied
Date: Sat, 27 Oct 2018 19:55:00 -0000
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--- Comment #6 from ДилÑн Палаузов <dilyan.palauzov at aegee dot org> ---
I have misspelled the domain — gnu.gcc.org
>From gcc-bugs-return-619410-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 21:35:21 2018
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Subject: [Bug target/80024] nios2: unclear wording "numeric digits" in diagnostic
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--- Comment #1 from sandra at gcc dot gnu.org ---
Author: sandra
Date: Sat Oct 27 21:34:43 2018
New Revision: 265561
URL: https://gcc.gnu.org/viewcvs?rev=265561&root=gcc&view=rev
Log:
2018-10-27 Sandra Loosemore <sandra@codesourcery.com>
PR target/80024
gcc/
* config/nios2/nios2.c (nios2_valid_target_attribute_rec): Fix
error message.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/nios2/nios2.c
>From gcc-bugs-return-619411-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 21:39:34 2018
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Subject: [Bug target/80024] nios2: unclear wording "numeric digits" in diagnostic
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sandra at gcc dot gnu.org changed:
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--- Comment #2 from sandra at gcc dot gnu.org ---
Fixed on mainline now.
>From gcc-bugs-return-619412-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 23:08:07 2018
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From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/87773] New: %s directive argument is null missing inlining context
Date: Sat, 27 Oct 2018 23:08:00 -0000
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Bug ID: 87773
Summary: %s directive argument is null missing inlining context
Product: gcc
Version: 9.0
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The warning below is missing inlining context. Worse, because it points to the
format string rather than the call, in complex code it could be tricky to
figure out where it's coming from.
Finally, it should probably be controlled by -Wnonnull like other such
warnings.
$ cat t.c && gcc -O2 -S -Wall t.c
void f (char *d, const char *f, const char *p)
{
__builtin_sprintf (d, f, p);
}
void g (char *d)
{
const char *f = "%s";
__builtin_sprintf (d, f, 0);
}
t.c: In function ‘g’:
t.c:8:20: warning: ‘%s’ directive argument is null [-Wformat-overflow=]
8 | const char *f = "%s";
| ^~
>From gcc-bugs-return-619413-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 23:28:53 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87774] New: ICE on ternary expression with __builtin_fprintf
Date: Sat, 27 Oct 2018 23:28:00 -0000
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Bug ID: 87774
Summary: ICE on ternary expression with __builtin_fprintf
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
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GCC fails with an ICE on the program below.
#include <stdio.h>
extern "C" int ff (FILE*, const char*, ...);
void f (FILE *fp)
{
(fp ? __builtin_fprintf : ff)(fp, "abc");
}
t.C: In function ‘void f(FILE*)’:
t.C:7:29: internal compiler error: canonical types differ for identical types
‘int(FILE*, const char*, ...)’ {aka ‘int(_IO_FILE*, const char*, ...)’} and
‘int(FILE*, const char*, ...)’ {aka ‘int(_IO_FILE*, const char*, ...)’}
7 | (fp ? __builtin_fprintf : ff)(fp, "abc");
| ^~
0xb2ff79 comptypes(tree_node*, tree_node*, int)
/ssd/src/gcc/git-svn/gcc/cp/typeck.c:1480
0x82f723 build_conditional_expr_1
/ssd/src/gcc/git-svn/gcc/cp/call.c:5112
0x830c73 build_conditional_expr(unsigned int, tree_node*, tree_node*,
tree_node*, int)
/ssd/src/gcc/git-svn/gcc/cp/call.c:5460
0xb41d68 build_x_conditional_expr(unsigned int, tree_node*, tree_node*,
tree_node*, int)
/ssd/src/gcc/git-svn/gcc/cp/typeck.c:6668
0x9e858e cp_parser_question_colon_clause
/ssd/src/gcc/git-svn/gcc/cp/parser.c:9473
0x9e869c cp_parser_assignment_expression
/ssd/src/gcc/git-svn/gcc/cp/parser.c:9509
0x9e89dc cp_parser_expression
/ssd/src/gcc/git-svn/gcc/cp/parser.c:9672
0x9ded44 cp_parser_primary_expression
/ssd/src/gcc/git-svn/gcc/cp/parser.c:5255
0x9e320c cp_parser_postfix_expression
/ssd/src/gcc/git-svn/gcc/cp/parser.c:7060
0x9e6695 cp_parser_unary_expression
/ssd/src/gcc/git-svn/gcc/cp/parser.c:8339
0x9e7773 cp_parser_cast_expression
/ssd/src/gcc/git-svn/gcc/cp/parser.c:9107
0x9e7857 cp_parser_binary_expression
/ssd/src/gcc/git-svn/gcc/cp/parser.c:9208
0x9e8651 cp_parser_assignment_expression
/ssd/src/gcc/git-svn/gcc/cp/parser.c:9503
0x9e89dc cp_parser_expression
/ssd/src/gcc/git-svn/gcc/cp/parser.c:9672
0x9ebd29 cp_parser_expression_statement
/ssd/src/gcc/git-svn/gcc/cp/parser.c:11160
0x9eb620 cp_parser_statement
/ssd/src/gcc/git-svn/gcc/cp/parser.c:10964
0x9ec28b cp_parser_statement_seq_opt
/ssd/src/gcc/git-svn/gcc/cp/parser.c:11303
0x9ec181 cp_parser_compound_statement
/ssd/src/gcc/git-svn/gcc/cp/parser.c:11257
0xa004d9 cp_parser_function_body
/ssd/src/gcc/git-svn/gcc/cp/parser.c:21926
0xa0069d cp_parser_ctor_initializer_opt_and_function_body
/ssd/src/gcc/git-svn/gcc/cp/parser.c:21961
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
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Subject: [Bug c++/87774] ICE on ternary expression with __builtin_fprintf
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Known to fail| |4.3.5, 4.4.7, 4.8.5, 4.9.4,
| |5.4.0, 6.4.0, 7.3.0, 8.2.0,
| |9.0
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
It doesn't look like this ever worked correctly. GCC thinks __builtin_fprintf
takes a void*.
>From gcc-bugs-return-619415-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Oct 27 23:37:54 2018
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From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/87775] New: error due __builtin_fprintf having the wrong type
Date: Sat, 27 Oct 2018 23:37:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87775
Bug ID: 87775
Summary: error due __builtin_fprintf having the wrong type
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
See also pr87774. GCC fails to compile the program below because it declares
__builtin_fprintf as taking void* rather than FILE* as the first argument (it's
a hack to get around FILE not necessarily being a known type when the built-in
is declared).
$ cat t.c && gcc -O2 -S -Wall -Wextra t.c
#include <stdio.h>
int f (const char*, ...);
int ff (FILE*, const char*, ...);
int sf (char*, const char*, ...);
void g (int i, FILE *fp, char *d)
{
(i ? printf : f)("abc");
(i ? fprintf : ff)(fp, "abc");
(i ? sprintf : sf)(d, "abc");
}
void h (int i, FILE *fp, char *d)
{
(i ? __builtin_printf : f)("abc");
(i ? __builtin_fprintf : ff)(fp, "abc");
(i ? __builtin_sprintf : sf)(d, "abc");
}
__typeof__ (fprintf) *pf = __builtin_fprintf;
t.c: In function ‘h’:
t.c:17:26: warning: pointer type mismatch in conditional expression
17 | (i ? __builtin_fprintf : ff)(fp, "abc");
| ^
t.c:17:26: error: called object is not a function or function pointer
17 | (i ? __builtin_fprintf : ff)(fp, "abc");
| ~~~~~~~~~~~~~~~~~~~~~~~^~~~~
t.c: At top level:
t.c:21:28: warning: initialization of ‘int (*)(FILE * restrict, const char *
restrict, ...)’ {aka ‘int (*)(struct _IO_FILE * restrict, const char *
restrict, ...)’} from incompatible pointer type ‘int (*)(void *, const char *,
...)’ [-Wincompatible-pointer-types]
21 | __typeof__ (fprintf) *pf = __builtin_fprintf;
| ^~~~~~~~~~~~~~~~~
>From gcc-bugs-return-619416-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 02:28:21 2018
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From: "egallager at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87771] My first 3d printer, and I messed up trying to update the .ini file. So, I'm trying to put the original software back in it, and I get this internal compiler error
Date: Sun, 28 Oct 2018 02:28:00 -0000
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Eric Gallager <egallager at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |egallager at gcc dot gnu.org
Summary|My first 3d printer, and I |My first 3d printer, and I
|messed up trying to update |messed up trying to update
|the .ini file. So, I'm |the .ini file. So, I'm
|trying to put the original |trying to put the original
|software back in it, and I |software back in it, and I
|get this error |get this internal compiler
| |error
--- Comment #2 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Donna Ory from comment #0)
> Created attachment 44910 [details]
The part of that output that is actually from gcc is this part:
C:\Users\dory\Documents\Arduino\libraries\U8glib\utility\u8g_rot.c:48:27:
warning: initialization from incompatible pointer type
[-Wincompatible-pointer-types]
u8g_dev_t u8g_dev_rot = { u8g_dev_rot_dummy_fn, NULL, NULL };
^
C:\Users\dory\Documents\Arduino\libraries\U8glib\utility\u8g_rot.c:48:27: note:
(near initialization for 'u8g_dev_rot.dev_fn')
sketch\stepper.cpp: In function 'get_axis_position_mm':
sketch\stepper.cpp:1195:1: internal compiler error: Segmentation fault
}
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper.exe: fatal error: C:\Program
Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.15.0_x86__mdqgnx93n4wtt\hardware\tools\avr/bin/avr-gcc
returned 1 exit status
compilation terminated.
c:/program
files/windowsapps/arduinollc.arduinoide_1.8.15.0_x86__mdqgnx93n4wtt/hardware/tools/avr/bin/../lib/gcc/avr/5.4.0/../../../../avr/bin/ld.exe:
error: lto-wrapper failed
collect2.exe: error: ld returned 1 exit status
exit status 1
> Note++ Marlin error
>
> I got the Arduino software off the Windows store, and followed the
> directions given by Thomas Sanladerer on his video on how to upgrade the
> Marlin software.
Could you provide a link to this video please?
> I downloaded the u8glib_arduino_v1.17 zip file,
From where?
> and had the software include it in the libraries.
>
> I have re compiled 4 times, even after opening the "Manage Libraries" so
> they can update...and I still get the same errors.
>
> I don't know how to save in a .i File, but I did copy and paste it into a
> Note++.
>
> I hope you can help me, and I really appreciate what you do!
>
> Sincerely,
> Donna Ory
>From gcc-bugs-return-619417-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 02:35:08 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/77796] tautological compare warning emitted for inherited static method comparisons
Date: Sun, 28 Oct 2018 02:35:00 -0000
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Eric Gallager <egallager at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dmalcolm at gcc dot gnu.org,
| |dodji at gcc dot gnu.org
--- Comment #2 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Eric Gallager from comment #1)
> Confirmed. Also, it seems weird that the warning underlines all of
> B::destroy, but only the "A" in A::destroy:
>
> $ /usr/local/bin/g++ -c -Wall -Wextra -pedantic 77796.cc
> 77796.cc:11:12: warning: self-comparison always evaluates to true
> [-Wtautological-compare]
> B::destroy == A::destroy ? 0 : 1
> ~~~~~~~~~~~^~~~
> $
Diagnostics maintainers, do you know what's up with that?
>From gcc-bugs-return-619418-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 02:38:41 2018
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Subject: [Bug middle-end/84823] [6 Regression] x86 LRA hang on valid code (no ICE) with -fno-omit-frame-pointer
Date: Sun, 28 Oct 2018 02:38:00 -0000
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A. Wilcox (awilfox) <awilfox at adelielinux dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |WONTFIX
--- Comment #7 from A. Wilcox (awilfox) <awilfox at adelielinux dot org> ---
I have no idea. We can't move to GCC 7.x due to regressions on other
platforms, and 8.2.0 chewed more memory than our builders have available. (I
should not be seeing oom_killer on a system with 72 GB RAM and -j32, but there
it was anyway.)
I suppose this can be closed as WONTFIX, if the 6 branch will not be seeing any
further updates. I can reopen it if we manage to find a newer GCC release that
meets our requirements and this errant behaviour still occurs.
>From gcc-bugs-return-619419-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 03:05:53 2018
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Subject: [Bug target/85035] nios2: adding -fdelete-null-pointer-checks with -O2 enabled
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sandra at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sandra at gcc dot gnu.org
--- Comment #3 from sandra at gcc dot gnu.org ---
I've looked at this on mainline trunk and I'm not convinced there's a bug here,
or at least not a nios2 backend bug.
The -fdelete-null-pointer-checks option is badly named. What it really does is
allow attempts to dereference a null pointer to be combined and/or replaced
with some other code sequence that also causes a trap. So in the isolate-paths
tree pass, we're getting
if (t_4(D) != 0B)
goto <bb 3>; [100.00%]
else
goto <bb 7>; [0.00%]
....
<bb 7> [count: 0]:
# iftmp.0_8 = PHI <0B(2)>
_9 ={v} iftmp.0_8->m_LL;
__builtin_trap ();
The long long read is tagged as volatile to prevent it from getting optimized
away from later passes, and -mno-cache-volatile says to use the io instructions
for volatile memory reads and writes.
>From gcc-bugs-return-619420-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 03:07:35 2018
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Subject: [Bug target/85035] nios2: adding -fdelete-null-pointer-checks with -O2 enabled
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--- Comment #4 from sandra at gcc dot gnu.org ---
Created attachment 44912
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44912&action=edit
assembly language output
>From gcc-bugs-return-619421-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 03:09:10 2018
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Subject: [Bug c/71176] trunk/fixincludes/fixincl.c:162: bad % specifier
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--- Comment #4 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to David Binderman from comment #2)
> (In reply to Manuel López-Ibáñez from comment #1)
> > I wonder why GCC -Wformat does not catch this, since "static const char"
> > literals contents should be visible as formatting strings. In this case, it
> > doesn't even make sense to use a separate variable.
>
> There is a much simpler explanation for this.
>
> The compiler only sees code that gets through the preprocessor.
>
> The code in question has
>
> #ifdef DO_STATS
>
> around it.
>
> Still worth fixing, in my view. 2e9 bytes isn't a lot of source code these
> days.
Where is DO_STATS supposed to be defined?
>From gcc-bugs-return-619422-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 03:10:42 2018
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From: "egallager at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug objc/77428] incorrect 'set but not used' warning with @throw
Date: Sun, 28 Oct 2018 03:10:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77428
--- Comment #5 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #4)
> (In reply to Eric Gallager from comment #3)
> > (In reply to Tom de Vries from comment #1)
> > > Created attachment 39528 [details]
> > > tentative patch
> >
> > Have you sent this patch to the gcc-patches mailing list yet?
>
> No.
Could you please?
>From gcc-bugs-return-619423-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 04:57:17 2018
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From: "asolokha at gmx dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/87776] New: [9 Regression] Compile time hog during RPO VN
Date: Sun, 28 Oct 2018 04:57:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87776
Bug ID: 87776
Summary: [9 Regression] Compile time hog during RPO VN
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: compile-time-hog
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-9.0.0-alpha20181021 snapshot (r265361) takes indefinite time to compile the
following snippet w/ -O2 (-O3, -Ofast, -Os) --param rpo-vn-max-loop-depth=2:
int wp;
void
ff (void)
{
int *s3 = ℘
for (wp = 0; wp < 1; ++wp)
{
if (wp != 0)
{
o8:
;
}
else
{
b7:
while (wp < 1)
{
}
}
for (*s3 = 0; *s3 < 1; ++*s3)
{
for (wp = 0; wp < 1; ++wp)
for (wp = 0; wp < 1; ++wp)
{
}
for (wp = 0; wp < 1; ++wp)
goto o8;
for (wp = 0; wp < 1; ++wp)
goto b7;
}
}
}
% timeout 10 gcc-9.0.0-alpha20181021 -O2 --param rpo-vn-max-loop-depth=2 -c
uppnycas.c
zsh: exit 124 timeout 10 gcc-9.0.0-alpha20181021 -O2 --param
rpo-vn-max-loop-depth=2 -c
Or is it something to expect w/ such a small argument for
rpo-vn-max-loop-depth?
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Sun, 28 Oct 2018 09:26:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85669
--- Comment #66 from Iain Sandoe <iains at gcc dot gnu.org> ---
Author: iains
Date: Sun Oct 28 09:25:43 2018
New Revision: 265568
URL: https://gcc.gnu.org/viewcvs?rev=265568&root=gcc&view=rev
Log:
darwin - fix powerpc-darwin stack alignments
2018-10-28 Iain Sandoe <iain@sandoe.co.uk>
PR target/85669
* config/rs6000/darwin.h (STACK_BOUNDARY): New.
(RS6000_STARTING_FRAME_OFFSET): Adjust to preserve 16byte alignment.
(STACK_DYNAMIC_OFFSET): Likewise.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/rs6000/darwin.h
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Subject: [Bug target/85669] fail on s-case-cfn-macros: build/gencfn-macros: DEF_INTERNAL_FLT/INT_FN (%smth%) has no associated built-in functions
Date: Sun, 28 Oct 2018 10:02:00 -0000
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--- Comment #67 from Iain Sandoe <iains at gcc dot gnu.org> ---
Author: iains
Date: Sun Oct 28 10:02:06 2018
New Revision: 265569
URL: https://gcc.gnu.org/viewcvs?rev=265569&root=gcc&view=rev
Log:
darwin - fix powerpc-darwin stack alignment issue
2018-10-28 Iain Sandoe <iain@sandoe.co.uk>
backport from mainline.
2018-10-28 Iain Sandoe <iain@sandoe.co.uk>
PR target/85669
* config/rs6000/darwin.h (STACK_BOUNDARY): New.
(RS6000_STARTING_FRAME_OFFSET): Adjust to preserve 16byte alignment.
(STACK_DYNAMIC_OFFSET): Likewise.
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/config/rs6000/darwin.h
>From gcc-bugs-return-619426-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 10:22:01 2018
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From: "john at johnwarburton dot net" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/86832] [8/9 Regression] GCC v8.2.0 tries to use native TLS with -fstack-protector-strong on Windows (mingw-w64)
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John Warburton <john at johnwarburton dot net> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |john at johnwarburton dot net
--- Comment #5 from John Warburton <john at johnwarburton dot net> ---
Related bug in other software:
https://gitlab.com/mbunkus/mkvtoolnix/issues/2417
(it also affects cross-compilation of the VLC player in addition to the
MKVToolNix suite, above)
>From gcc-bugs-return-619427-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 11:05:45 2018
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From: "tkoenig at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/54613] [F08] Add FINDLOC plus support MAXLOC/MINLOC with KIND=/BACKDate: Sun, 28 Oct 2018 11:05:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54613
--- Comment #17 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Author: tkoenig
Date: Sun Oct 28 11:05:05 2018
New Revision: 265570
URL: https://gcc.gnu.org/viewcvs?rev=265570&root=gcc&view=rev
Log:
2017-10-28 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/54613
* gfortran.h (gfc_isym_id): Add GFC_ISYM_FINDLOC.
(gfc_check_f): Add f6fl field.
(gfc_simplify_f): Add f6 field.
(gfc_resolve_f): Likewise.
(gfc_type_letter): Add optional logical_equas_int flag.
* check.c (intrinsic_type_check): New function.
(gfc_check_findloc): New function.
* intrinsics.c (gfc_type_letter): If logical_equals_int is
set, act accordingly.
(add_sym_5ml): Reformat comment.
(add_sym_6fl): New function.
(add_functions): Add findloc.
(check_arglist): Add sixth argument, handle it.
(resolve_intrinsic): Likewise.
(check_specific): Handle findloc.
* intrinsic.h (gfc_check_findloc): Add prototype.
(gfc_simplify_findloc): Likewise.
(gfc_resolve_findloc): Likewise.
(MAX_INTRINSIC_ARGS): Adjust.
* iresolve.c (gfc_resolve_findloc): New function.
* simplify.c (gfc_simplify_minmaxloc): Make static.
(simplify_findloc_to_scalar): New function.
(simplify_findloc_nodim): New function.
(simplify_findloc_to_array): New function.
(gfc_simplify_findloc): New function.
(gfc_conv_intrinsic_findloc): New function.
(gfc_conv_intrinsic_function): Handle GFC_ISYM_FINDLOC.
(gfc_is_intrinsic_libcall): Likewise.
2017-10-28 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/54613
* Makefile.am: Add files for findloc.
* Makefile.in: Regenerated.
* libgfortran.h (gfc_array_index_type): Add.
(gfc_array_s1): Add using GFC_UINTEGER_1.
(gfc_array_s4): Likewise.
Replace unnecessary comment.
(HAVE_GFC_UINTEGER_1): Define.
(HAVE_GFC_UINTEGER_4): Define.
* m4/findloc0.m4: New file.
* m4/findloc0s.m4: New file.
* m4/findloc1.m4: New file.
* m4/findloc1s.m4: New file.
* m4/findloc2s.m4: New file.
* m4/ifindloc0.m4: New file.
* m4/ifindloc1.m4: New file.
* m4/ifindloc2.m4: New file.
* m4/iparm.m4: Use unsigned integer for characters.
* generated/findloc0_c16.c: New file.
* generated/findloc0_c4.c: New file.
* generated/findloc0_c8.c: New file.
* generated/findloc0_i1.c: New file.
* generated/findloc0_i16.c: New file.
* generated/findloc0_i2.c: New file.
* generated/findloc0_i4.c: New file.
* generated/findloc0_i8.c: New file.
* generated/findloc0_r16.c: New file.
* generated/findloc0_r4.c: New file.
* generated/findloc0_r8.c: New file.
* generated/findloc0_s1.c: New file.
* generated/findloc0_s4.c: New file.
* generated/findloc1_c16.c: New file.
* generated/findloc1_c4.c: New file.
* generated/findloc1_c8.c: New file.
* generated/findloc1_i1.c: New file.
* generated/findloc1_i16.c: New file.
* generated/findloc1_i2.c: New file.
* generated/findloc1_i4.c: New file.
* generated/findloc1_i8.c: New file.
* generated/findloc1_r16.c: New file.
* generated/findloc1_r4.c: New file.
* generated/findloc1_r8.c: New file.
* generated/findloc1_s1.c: New file.
* generated/findloc1_s4.c: New file.
* generated/findloc2_s1.c: New file.
* generated/findloc2_s4.c: New file.
* generated/maxloc0_16_s1.c: Regenerated.
* generated/maxloc0_16_s4.c: Regenerated.
* generated/maxloc0_4_s1.c: Regenerated.
* generated/maxloc0_4_s4.c: Regenerated.
* generated/maxloc0_8_s1.c: Regenerated.
* generated/maxloc0_8_s4.c: Regenerated.
* generated/maxloc1_16_s1.c: Regenerated.
* generated/maxloc1_16_s4.c: Regenerated.
* generated/maxloc1_4_s1.c: Regenerated.
* generated/maxloc1_4_s4.c: Regenerated.
* generated/maxloc1_8_s1.c: Regenerated.
* generated/maxloc1_8_s4.c: Regenerated.
* generated/maxloc2_16_s1.c: Regenerated.
* generated/maxloc2_16_s4.c: Regenerated.
* generated/maxloc2_4_s1.c: Regenerated.
* generated/maxloc2_4_s4.c: Regenerated.
* generated/maxloc2_8_s1.c: Regenerated.
* generated/maxloc2_8_s4.c: Regenerated.
* generated/maxval0_s1.c: Regenerated.
* generated/maxval0_s4.c: Regenerated.
* generated/maxval1_s1.c: Regenerated.
* generated/maxval1_s4.c: Regenerated.
* generated/minloc0_16_s1.c: Regenerated.
* generated/minloc0_16_s4.c: Regenerated.
* generated/minloc0_4_s1.c: Regenerated.
* generated/minloc0_4_s4.c: Regenerated.
* generated/minloc0_8_s1.c: Regenerated.
* generated/minloc0_8_s4.c: Regenerated.
* generated/minloc1_16_s1.c: Regenerated.
* generated/minloc1_16_s4.c: Regenerated.
* generated/minloc1_4_s1.c: Regenerated.
* generated/minloc1_4_s4.c: Regenerated.
* generated/minloc1_8_s1.c: Regenerated.
* generated/minloc1_8_s4.c: Regenerated.
* generated/minloc2_16_s1.c: Regenerated.
* generated/minloc2_16_s4.c: Regenerated.
* generated/minloc2_4_s1.c: Regenerated.
* generated/minloc2_4_s4.c: Regenerated.
* generated/minloc2_8_s1.c: Regenerated.
* generated/minloc2_8_s4.c: Regenerated.
* generated/minval0_s1.c: Regenerated.
* generated/minval0_s4.c: Regenerated.
* generated/minval1_s1.c: Regenerated.
* generated/minval1_s4.c: Regenerated.
2017-10-28 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/54613
* gfortran.dg/findloc_1.f90: New test.
* gfortran.dg/findloc_2.f90: New test.
* gfortran.dg/findloc_3.f90: New test.
* gfortran.dg/findloc_4.f90: New test.
* gfortran.dg/findloc_5.f90: New test.
* gfortran.dg/findloc_6.f90: New test.
Added:
trunk/libgfortran/generated/findloc0_c16.c
trunk/libgfortran/generated/findloc0_c4.c
trunk/libgfortran/generated/findloc0_c8.c
trunk/libgfortran/generated/findloc0_i1.c
trunk/libgfortran/generated/findloc0_i16.c
trunk/libgfortran/generated/findloc0_i2.c
trunk/libgfortran/generated/findloc0_i4.c
trunk/libgfortran/generated/findloc0_i8.c
trunk/libgfortran/generated/findloc0_r16.c
trunk/libgfortran/generated/findloc0_r4.c
trunk/libgfortran/generated/findloc0_r8.c
trunk/libgfortran/generated/findloc0_s1.c
trunk/libgfortran/generated/findloc0_s4.c
trunk/libgfortran/generated/findloc1_c16.c
trunk/libgfortran/generated/findloc1_c4.c
trunk/libgfortran/generated/findloc1_c8.c
trunk/libgfortran/generated/findloc1_i1.c
trunk/libgfortran/generated/findloc1_i16.c
trunk/libgfortran/generated/findloc1_i2.c
trunk/libgfortran/generated/findloc1_i4.c
trunk/libgfortran/generated/findloc1_i8.c
trunk/libgfortran/generated/findloc1_r16.c
trunk/libgfortran/generated/findloc1_r4.c
trunk/libgfortran/generated/findloc1_r8.c
trunk/libgfortran/generated/findloc1_s1.c
trunk/libgfortran/generated/findloc1_s4.c
trunk/libgfortran/generated/findloc2_s1.c
trunk/libgfortran/generated/findloc2_s4.c
trunk/libgfortran/m4/findloc0.m4
trunk/libgfortran/m4/findloc0s.m4
trunk/libgfortran/m4/findloc1.m4
trunk/libgfortran/m4/findloc1s.m4
trunk/libgfortran/m4/findloc2s.m4
trunk/libgfortran/m4/ifindloc0.m4
trunk/libgfortran/m4/ifindloc1.m4
trunk/libgfortran/m4/ifindloc2.m4
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/check.c
trunk/gcc/fortran/expr.c
trunk/gcc/fortran/gfortran.h
trunk/gcc/fortran/intrinsic.c
trunk/gcc/fortran/intrinsic.h
trunk/gcc/fortran/iresolve.c
trunk/gcc/fortran/simplify.c
trunk/gcc/fortran/trans-intrinsic.c
trunk/gcc/testsuite/ChangeLog
trunk/libgfortran/ChangeLog
trunk/libgfortran/Makefile.am
trunk/libgfortran/Makefile.in
trunk/libgfortran/generated/maxloc0_16_s1.c
trunk/libgfortran/generated/maxloc0_16_s4.c
trunk/libgfortran/generated/maxloc0_4_s1.c
trunk/libgfortran/generated/maxloc0_4_s4.c
trunk/libgfortran/generated/maxloc0_8_s1.c
trunk/libgfortran/generated/maxloc0_8_s4.c
trunk/libgfortran/generated/maxloc1_16_s1.c
trunk/libgfortran/generated/maxloc1_16_s4.c
trunk/libgfortran/generated/maxloc1_4_s1.c
trunk/libgfortran/generated/maxloc1_4_s4.c
trunk/libgfortran/generated/maxloc1_8_s1.c
trunk/libgfortran/generated/maxloc1_8_s4.c
trunk/libgfortran/generated/maxloc2_16_s1.c
trunk/libgfortran/generated/maxloc2_16_s4.c
trunk/libgfortran/generated/maxloc2_4_s1.c
trunk/libgfortran/generated/maxloc2_4_s4.c
trunk/libgfortran/generated/maxloc2_8_s1.c
trunk/libgfortran/generated/maxloc2_8_s4.c
trunk/libgfortran/generated/maxval0_s1.c
trunk/libgfortran/generated/maxval0_s4.c
trunk/libgfortran/generated/maxval1_s1.c
trunk/libgfortran/generated/maxval1_s4.c
trunk/libgfortran/generated/minloc0_16_s1.c
trunk/libgfortran/generated/minloc0_16_s4.c
trunk/libgfortran/generated/minloc0_4_s1.c
trunk/libgfortran/generated/minloc0_4_s4.c
trunk/libgfortran/generated/minloc0_8_s1.c
trunk/libgfortran/generated/minloc0_8_s4.c
trunk/libgfortran/generated/minloc1_16_s1.c
trunk/libgfortran/generated/minloc1_16_s4.c
trunk/libgfortran/generated/minloc1_4_s1.c
trunk/libgfortran/generated/minloc1_4_s4.c
trunk/libgfortran/generated/minloc1_8_s1.c
trunk/libgfortran/generated/minloc1_8_s4.c
trunk/libgfortran/generated/minloc2_16_s1.c
trunk/libgfortran/generated/minloc2_16_s4.c
trunk/libgfortran/generated/minloc2_4_s1.c
trunk/libgfortran/generated/minloc2_4_s4.c
trunk/libgfortran/generated/minloc2_8_s1.c
trunk/libgfortran/generated/minloc2_8_s4.c
trunk/libgfortran/generated/minval0_s1.c
trunk/libgfortran/generated/minval0_s4.c
trunk/libgfortran/generated/minval1_s1.c
trunk/libgfortran/generated/minval1_s4.c
trunk/libgfortran/gfortran.map
trunk/libgfortran/libgfortran.h
trunk/libgfortran/m4/iparm.m4
>From gcc-bugs-return-619429-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 11:08:20 2018
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Subject: [Bug fortran/39627] [meta-bug] Fortran 2008 support
Date: Sun, 28 Oct 2018 11:08:00 -0000
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Bug 39627 depends on bug 54613, which changed state.
Bug 54613 Summary: [F08] Add FINDLOC plus support MAXLOC/MINLOC with KIND=/BACK=
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54613
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
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Subject: [Bug fortran/54613] [F08] Add FINDLOC plus support MAXLOC/MINLOC with KIND=/BACKDate: Sun, 28 Oct 2018 11:08:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54613
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #18 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Implemented, closing.
>From gcc-bugs-return-619430-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 11:27:02 2018
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From: "c.friedrich@fz-juelich.de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/82065] gfortran rejects redundant use of intrinsic module constant
Date: Sun, 28 Oct 2018 11:27:00 -0000
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c.friedrich@fz-juelich.de changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |c.friedrich@fz-juelich.de
--- Comment #6 from c.friedrich@fz-juelich.de ---
Slightly different case but probably the same bug:
subroutine sub(i)
c if(i==1.or.i==2) call sub1 ! this works
if(any(i==[1,2])) call sub1 ! this does not
call sub2
contains
subroutine sub1
use iso_fortran_env
real(real64) :: a
end subroutine sub1
subroutine sub2
use iso_fortran_env
real(real64) :: b
end subroutine sub2
end
Compilation fails with any optimization level different from -O0:
/tmp/ccZ13RIp.s: Assembler messages:
/tmp/ccZ13RIp.s:23: Error: symbol `__iso_fortran_env_MOD_real64' is already
defined
Slight changes of the code makes the error disappear. For example, not using
the "any" construction in the if command. Or commenting out one of the two
subroutine calls. Or commening out any of the declarations (a or b) in the
subroutines. Or using "real(8)" instead of "real(real64)".
Tested versions: 5.5.0, 7.3.0
>From gcc-bugs-return-619431-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 13:18:51 2018
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From: "nicolas.boulenguez at free dot fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/87777] New: Let gnat tools call each other with an explicit target and version
Date: Sun, 28 Oct 2018 13:18:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87777
Bug ID: 87777
Summary: Let gnat tools call each other with an explicit target
and version
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ada
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Created attachment 44913
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44913&action=edit
The patch as applied by Debian.
Many problems have been caused by the fact that tools like gnatmake call other
tools like gcc without an explicit target or version.
The Osint.Program_Name function has been created in order to compute the name
of the right gcc subcommand.
The attached patch improves it for Debian, but as described in the header most
changes may be applied upstream.
>From gcc-bugs-return-619432-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 13:25:30 2018
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From: "nicolas.boulenguez at free dot fr" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ada/87778] New: Remove -q quiet option from some GNAT bootstrap command lines
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87778
Bug ID: 87778
Summary: Remove -q quiet option from some GNAT bootstrap
command lines
Product: gcc
Version: 9.0
Status: UNCONFIRMED
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The patch as applied by Debian.
The log can be a page longer if it helps debugging.
The attached patch replaces -q with -v for Debian.
Please at least consider removing -q.
>From gcc-bugs-return-619433-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 14:47:27 2018
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From: "manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/87162] ICE with -fdump-passes -fgnu-tm
Date: Sun, 28 Oct 2018 14:47:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87162
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Version|6.2.0 |9.0
Keywords| |ice-on-valid-code
Last reconfirmed| |2018-10-28
CC| |manu at gcc dot gnu.org
Ever confirmed|0 |1
Summary|[6.2.0] Internal compiler |ICE with -fdump-passes
|error: Error reporting |-fgnu-tm
|routines re-entered. |
Known to fail| |6.2.0
--- Comment #9 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
Confirmed on trunk. It crashes on any input.
If you want to propose a patch, see
https://gcc.gnu.org/wiki/GettingStarted#Basics:_Contributing_to_GCC_in_10_easy_steps
>From gcc-bugs-return-619434-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 15:55:30 2018
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Subject: [Bug libobjc/67455] Inheriting from Object (with GNU runtime) doesn't provide alloc, init, or new, rendering methods useless
Date: Sun, 28 Oct 2018 15:55:00 -0000
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Eric Gallager <egallager at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Keywords| |diagnostic
--- Comment #5 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Eric Gallager from comment #4)
> 67455.m:21:2: warning: (Messages without a matching method signature
> 67455.m:21:2: warning: will be assumed to return ‘id’ and accept
> 67455.m:21:2: warning: ‘...’ as arguments.)
Also this message should probably be a single note rather than warnings, so I
guess this is a diagnostics issue too.
>From gcc-bugs-return-619435-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 17:01:19 2018
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From: "egallager at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug objc++/66504] ICE using C++ exceptions in Objective-C++
Date: Sun, 28 Oct 2018 17:00:00 -0000
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Eric Gallager <egallager at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #3 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Eric Gallager from comment #1)
> Confirmed; message I get now with trunk is:
>
> $ /usr/local/bin/g++ -c 35756.mm
> during GIMPLE pass: eh
> 35756.mm: In function ‘void Problem()’:
> 35756.mm:1:6: internal compiler error: in objc_eh_runtime_type, at
> objc/objc-next-runtime-abi-01.c:2791
> void Problem()
> ^~~~~~~
> libbacktrace could not find executable to open
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <https://gcc.gnu.org/bugs/> for instructions.
>
> Attaching gdb to get a backtrace, I get:
>
> Breakpoint 2, 0x00fb3c74 in internal_error ()
> (gdb) bt
> #0 0x00fb3c74 in internal_error ()
> warning: .o file
> "/private/var/root/gcc-git/my_oddly_named_builddir/./mpfr/src/.libs/libmpfr.
> a(mpfr-gmp.o)" more recent than executable timestamp
> #1 0x014e9561 in fancy_abort ()
> #2 0x012db91c in objc_eh_runtime_type ()
> #3 0x007b571b in add_type_for_runtime ()
> #4 0x007b57ab in gen_eh_region_catch ()
> #5 0x00c676c1 in lower_eh_constructs_1 ()
> #6 0x00c68deb in (anonymous namespace)::pass_lower_eh::execute ()
> #7 0x00af3550 in execute_one_pass ()
> #8 0x00af3eb9 in execute_pass_list_1 ()
> #9 0x00af3f0e in execute_pass_list ()
> #10 0x006bed49 in cgraph_node::analyze ()
> #11 0x006c1d3d in analyze_functions ()
> #12 0x006c2c42 in symbol_table::finalize_compilation_unit ()
> #13 0x00bee32a in compile_file ()
> #14 0x01b02420 in toplev::main ()
> #15 0x01b03a34 in main ()
>
> I'll have to rebuild with debug info to get a better backtrace.
Actually looking at the backtrace makes me think this is a dup of bug 61759
*** This bug has been marked as a duplicate of bug 61759 ***
>From gcc-bugs-return-619436-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 17:01:19 2018
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From: "egallager at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug objc++/61759] [ICE] [objc++] reaching gcc_unreachable in objc_eh_runtime_type at objc/objc-next-runtime-abi-01.c
Date: Sun, 28 Oct 2018 17:01:00 -0000
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Eric Gallager <egallager at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
CC| |admin at maniacsvault dot net
--- Comment #9 from Eric Gallager <egallager at gcc dot gnu.org> ---
*** Bug 66504 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-619437-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 17:27:19 2018
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From: "egallager at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug inline-asm/55681] Qualifiers on asm statements are order-dependent
Date: Sun, 28 Oct 2018 17:27:00 -0000
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--- Comment #3 from Eric Gallager <egallager at gcc dot gnu.org> ---
There's a proposal to add "asm inline" too, which seems like it would be
relevant here: https://gcc.gnu.org/ml/gcc-patches/2018-10/msg00748.html
>From gcc-bugs-return-619438-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 17:37:08 2018
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From: "egallager at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/59472] Many warnings "type of 'X' does not match original declaration" when linking with libstdc++ static library compiled with -flto
Date: Sun, 28 Oct 2018 17:37:00 -0000
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--- Comment #6 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Paul Scruby from comment #5)
> Is there a patch to fix or suppress the warnings when link-time optimizing
> to libstdc++.a ? I'm using gcc4.8.2, but I'm happy to upgrade to gcc4.9 if
> this release is more likely to get fixed first?
Well both those branches are closed now; could you upgrade to something more
recent instead?
>From gcc-bugs-return-619439-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 17:44:38 2018
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From: "juergen.reuter at desy dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/49802] [F03] [F08] Wrong code with VALUE, VALUE with arrays/DIMENSION
Date: Sun, 28 Oct 2018 17:44:00 -0000
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Jürgen Reuter <juergen.reuter at desy dot de> changed:
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----------------------------------------------------------------------------
CC| |juergen.reuter at desy dot de
--- Comment #9 from Jürgen Reuter <juergen.reuter at desy dot de> ---
(In reply to Dominique d'Humieres from comment #8)
> > I also confirm that compiling the test in comment #5 gives an ICE
>
> I get the same ICE with the following code
>
> call pr53876
> end
>
> subroutine pr53876
> IMPLICIT NONE
> TYPE :: individual
> integer :: icomp ! Add an extra component to test offset
> REAL, DIMENSION(:), ALLOCATABLE :: genes
> END TYPE
> CLASS(individual), DIMENSION(:), ALLOCATABLE :: indv, indv1
> allocate (indv(2), source = [individual(1, [99,999]), &
> individual(2, [999,9999])])
> ! allocate (indv1(2), source = [indv(1),indv(2)])
> print *, fun([indv(1),indv(2)])
> contains
> elemental function fun(x) result(res)
> integer :: res
> class(individual), intent(in) :: x
> res = x%genes(1)
> end
> END
This ICE is no longer present in trunk.
>From gcc-bugs-return-619440-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 18:54:25 2018
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From: "lumosimann at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87663] Exorbitant compile times
Date: Sun, 28 Oct 2018 18:54:00 -0000
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--- Comment #5 from Lukas Mosimann <lumosimann at gmail dot com> ---
I was able to track down the error. The problem is caused due to
`set_underlying_type` in cfamily/c_common.c. I tried to disable that function
by simply returning on entry - and compilation times for cc1plus are completely
restored in all examples in this issue. This of course breaks other code, but
for the case of demonstration this is enough.
The first example with Version C used to compile in N=23: 181s, N=24: 493s,
N=25: 1348s. We would expect this to be a fibonacchi sequence - and this are
the new compile times for the same source: N=23: 5s, N=24: 8s, N=25: 13s.
Tests of
Consider the example in the last comment. There the problem arises because the
variant list gets huge as this function adds type variants for the int-typedef
over and over. When looking for the right variant later, we need to iterate
over potentially all this variants.
Now I need your help: I don't know the code base for gcc that well. Why do we
need this functionality, and how could we solve this issue? I could imagine
that this can also impact real code - but it's hard to say because the
quick-fix above only works in simple codes. I would love to continue working on
this, but I need some hints how I could do this (or that it cannot be done
without major rework).
>From gcc-bugs-return-619441-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 19:14:30 2018
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From: "logicstuffs at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/49251] [C++0x][parameter pack expanding] unused parameter warning with unpacking empty tuples
Date: Sun, 28 Oct 2018 19:14:00 -0000
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LogicStuff <logicstuffs at gmail dot com> changed:
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----------------------------------------------------------------------------
CC| |logicstuffs at gmail dot com
--- Comment #6 from LogicStuff <logicstuffs at gmail dot com> ---
#include <tuple>
template< std::size_t... Indices >
struct indices {};
template< class... Args >
void sink( Args&&... ) {}
template< class Tuple, std::size_t... Indices >
void unpack_test( Tuple t, indices<Indices...> ) {
sink( std::get<Indices>(t)... );
}
int main() {
unpack_test( std::tuple<>(), indices<>() );
}
------------------------
With the small change in the signature (notice passing `t` by value), is this
warning acceptable?
bug.cc: In instantiation of 'void unpack_test(Tuple, indices<Indices ...>)
[with Tuple = std::tuple<>; long unsigned int ...Indices = {}]':
bug.cc:15:44: required from here
bug.cc:10:25: warning: parameter 't' set but not used
[-Wunused-but-set-parameter]
void unpack_test( Tuple t, indices<Indices...> ) {
^
Observed with various versions from 4.4.7 to 9.0.0 201810. Not observed with
Clang.
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Subject: [Bug inline-asm/55681] Qualifiers on asm statements are order-dependent
Date: Sun, 28 Oct 2018 19:51:00 -0000
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |segher at gcc dot gnu.org
--- Comment #4 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Yes. In fact, *all* combinations of two or more of {const,volatile,restrict}
are disallowed it seems. "goto" is only allowed at the very end. C++ only
allows volatile.
I'll have a shot at this (for inline as well).
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Subject: [Bug c/87779] New: Extremely large expression causes segfault
Date: Sun, 28 Oct 2018 22:05:00 -0000
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Bug ID: 87779
Summary: Extremely large expression causes segfault
Product: gcc
Version: unknown
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Component: c
Assignee: unassigned at gcc dot gnu.org
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Created attachment 44915
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44915&action=edit
example.c - C code that causes a segfault
$ gcc --version
gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
Copyright [...]
$ gcc example.c
gcc: internal compiler error: Segmentation fault (program cc1)
Please submit [...]
$ cat example.c
#include<stdio.h>
int main(void) {
int x = !!![one megabyte of exclamation marks]!!!1;
printf("%d", x);
return 0;
}
----
The same error occurs for the corresponding g++ command.
(I haven't come across this problem in the real world - I was just playing
around.)
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Subject: [Bug target/52795] FAIL: gcc.dg/tree-prof/pr34999.c compilation, -fprofile-use -D_PROFILE_USE on {x86_64,i386}-apple-darwin{10,11} at -m64
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--- Comment #11 from Iain Sandoe <iains at gcc dot gnu.org> ---
Author: iains
Date: Sun Oct 28 22:56:02 2018
New Revision: 265576
URL: https://gcc.gnu.org/viewcvs?rev=265576&root=gcc&view=rev
Log:
fix PR81033 and associated.
2018-10-28 Iain Sandoe <iain@sandoe.co.uk>
Backport from mainline
2018-08-22 Iain Sandoe <iain@sandoe.co.uk>
PR bootstrap/81033
PR target/81733
PR target/52795
* gcc/dwarf2out.c (FUNC_SECOND_SECT_LABEL): New.
(dwarf2out_switch_text_section): Generate a local label for the second
function sub-section and apply it as the second FDE start label.
* gcc/final.c (final_scan_insn_1): Emit second FDE label after the
second
sub-section start.
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/dwarf2out.c
branches/gcc-8-branch/gcc/final.c
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Subject: [Bug target/81733] stage1 libgcc_s.dylib fails to link on Darwin 11/x86_64
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--- Comment #19 from Iain Sandoe <iains at gcc dot gnu.org> ---
Author: iains
Date: Sun Oct 28 22:56:02 2018
New Revision: 265576
URL: https://gcc.gnu.org/viewcvs?rev=265576&root=gcc&view=rev
Log:
fix PR81033 and associated.
2018-10-28 Iain Sandoe <iain@sandoe.co.uk>
Backport from mainline
2018-08-22 Iain Sandoe <iain@sandoe.co.uk>
PR bootstrap/81033
PR target/81733
PR target/52795
* gcc/dwarf2out.c (FUNC_SECOND_SECT_LABEL): New.
(dwarf2out_switch_text_section): Generate a local label for the second
function sub-section and apply it as the second FDE start label.
* gcc/final.c (final_scan_insn_1): Emit second FDE label after the
second
sub-section start.
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/dwarf2out.c
branches/gcc-8-branch/gcc/final.c
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Subject: [Bug bootstrap/81033] [8 Regression] there are cases where ld64 is not able to determine correct atom boundaries from the output GCC currently produces
Date: Sun, 28 Oct 2018 22:56:00 -0000
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--- Comment #48 from Iain Sandoe <iains at gcc dot gnu.org> ---
Author: iains
Date: Sun Oct 28 22:56:02 2018
New Revision: 265576
URL: https://gcc.gnu.org/viewcvs?rev=265576&root=gcc&view=rev
Log:
fix PR81033 and associated.
2018-10-28 Iain Sandoe <iain@sandoe.co.uk>
Backport from mainline
2018-08-22 Iain Sandoe <iain@sandoe.co.uk>
PR bootstrap/81033
PR target/81733
PR target/52795
* gcc/dwarf2out.c (FUNC_SECOND_SECT_LABEL): New.
(dwarf2out_switch_text_section): Generate a local label for the second
function sub-section and apply it as the second FDE start label.
* gcc/final.c (final_scan_insn_1): Emit second FDE label after the
second
sub-section start.
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/dwarf2out.c
branches/gcc-8-branch/gcc/final.c
>From gcc-bugs-return-619447-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 23:01:46 2018
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Subject: [Bug bootstrap/81033] [8 Regression] there are cases where ld64 is not able to determine correct atom boundaries from the output GCC currently produces
Date: Sun, 28 Oct 2018 23:01:00 -0000
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--- Comment #49 from Iain Sandoe <iains at gcc dot gnu.org> ---
so this should now be fixed on trunk/8.x
It's not listed as a regression on 7.x but as I noted in the original patch
submission it's wrong code there - just not triggered until the partitioning
became part of bootstrap.
So leaving this open until there's a decision on 7.x.
>From gcc-bugs-return-619448-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 23:03:08 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87766] [9 Regression] ICE using __PRETTY_FUNCTION__ in dependent context
Date: Sun, 28 Oct 2018 23:03:00 -0000
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-28
Target Milestone|--- |9.0
Summary|ICE using |[9 Regression] ICE using
|__PRETTY_FUNCTION__ in |__PRETTY_FUNCTION__ in
|dependent context |dependent context
Ever confirmed|0 |1
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r264292.
>From gcc-bugs-return-619449-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 23:40:34 2018
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From: "romain.geissler at amadeus dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/87780] New: [9 regression] ICE error: unrecognizable insn
Date: Sun, 28 Oct 2018 23:40:00 -0000
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Bug ID: 87780
Summary: [9 regression] ICE error: unrecognizable insn
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
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Target Milestone: ---
Hi,
I have the following ICE when building llvm+clang+lld 7.0.0 (PGO + LTO profile)
on x64 with gcc from 28/10/2018 (while it was working fine with gcc from
11/10/2018):
/workdir/src/llvm-7.0.0.src/tools/clang/lib/Sema/TreeTransform.h:5222:1: error:
unrecognizable insn:
5222 | }
| ^
(insn 1262 1261 1263 2 (set (reg:V1TI 678)
(reg:TI 1 dx [ TL ]))
"/workdir/src/llvm-7.0.0.src/tools/clang/lib/Sema/TreeTransform.h":5212:1 -1
(nil))
during RTL pass: subreg2
/workdir/src/llvm-7.0.0.src/tools/clang/lib/Sema/TreeTransform.h:5222:1:
internal compiler error: in extract_insn, at recog.c:2305
0xfb86cb ???
/workdir/src/gcc-9.0.0/gcc/rtl-error.c:108
0xfb86e7 ???
/workdir/src/gcc-9.0.0/gcc/rtl-error.c:116
0x90ac09 ???
/workdir/src/gcc-9.0.0/gcc/recog.c:2305
0x179be75 ???
/workdir/src/gcc-9.0.0/gcc/lower-subreg.c:1483
0x180b49d ???
/workdir/src/gcc-9.0.0/gcc/lower-subreg.c:1750
0x12750d6 ???
/workdir/src/gcc-9.0.0/gcc/passes.c:2428
0x12e9abc ???
/workdir/src/gcc-9.0.0/gcc/passes.c:2517
0x14dd528 ???
/workdir/src/gcc-9.0.0/gcc/cgraphunit.c:2194
0x12727ca ???
/workdir/src/gcc-9.0.0/gcc/cgraphunit.c:2332
0x1268677 ???
/workdir/src/gcc-9.0.0/gcc/cgraphunit.c:2861
0x1240f3a ???
/workdir/src/gcc-9.0.0/gcc/toplev.c:480
0x11b05c6 ???
/workdir/src/gcc-9.0.0/gcc/toplev.c:2172
0x11af92a ???
/workdir/src/gcc-9.0.0/gcc/main.c:39
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
ninja: build stopped: subcommand failed.
Cheers,
Romain
>From gcc-bugs-return-619450-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Oct 28 23:49:57 2018
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From: "manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87663] Exorbitant compile times
Date: Sun, 28 Oct 2018 23:49:00 -0000
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Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |manu at gcc dot gnu.org
--- Comment #6 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Lukas Mosimann from comment #5)
> Now I need your help: I don't know the code base for gcc that well. Why do
> we need this functionality, and how could we solve this issue? I could
> imagine that this can also impact real code - but it's hard to say because
> the quick-fix above only works in simple codes. I would love to continue
> working on this, but I need some hints how I could do this (or that it
> cannot be done without major rework).
The answer to the first question is in the comment above the function. It seems
this is needed for debugging and other stuff.
Perhaps the search over the variants is not needed or can be made more
efficient?
In any case, it may be worth it to ask the question in the gcc@ mailing list,
CCing the C++ maintainers, which you can find in the MAINTAINERS file. Not many
people read bugzilla.
>From gcc-bugs-return-619451-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 00:01:43 2018
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Subject: [Bug c++/83028] Incorrect -Wsequence-point warning in correct C++17 code with new evaluation order rules
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Matthijs van Duin <matthijsvanduin at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |matthijsvanduin at gmail dot com
--- Comment #1 from Matthijs van Duin <matthijsvanduin at gmail dot com> ---
There are many such cases which are well-defined in C++17 yet trigger a
sequence-point warning in g++ 8.2, such as:
(x+i)[i++]
i = i++
(funcs[i++])(i)
This incorrect behaviour is actually documented: "The C++17 standard will
define the order of evaluation of operands in more cases: in particular it
requires that the right-hand side of an assignment be evaluated before the
left-hand side, so the above examples are no longer undefined. But this warning
will still warn about them, to help people avoid writing code that is undefined
in C and earlier revisions of C++."
This reasoning here is of course complete garbage. Plenty of valid C++17 code
is invalid in earlier revisions of the standard. When compiling code with
-std=c++17 or -std=gnu++17, the compiler should only concern itself with
whether the code is valid C++17 code.
Since I think habitually ignoring warnings is very bad practice and compile
with -Werror to ensure this won't happen, I consider these warnings to be
nearly as bad as miscompilation, as the end result is the same: I still cannot
rely on this feature of the C++17 standard.
>From gcc-bugs-return-619452-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 00:06:19 2018
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From: "romain.geissler at amadeus dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/87428] "Missed" inline instances cause bogus DWARF to be emitted
Date: Mon, 29 Oct 2018 00:06:00 -0000
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Romain Geissler <romain.geissler at amadeus dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |romain.geissler at amadeus dot com
--- Comment #4 from Romain Geissler <romain.geissler at amadeus dot com> ---
Hi,
The same issue happens with gcc 8 as well:
/workdir/src/gdb-8.2/gdb/dwarf2read.c:9715: internal-error: void
dw2_add_symbol_to_list(symbol*, pending**): Assertion `(*listhead) == NULL ||
(SYMBOL_LANGUAGE ((*listhead)->symbol[
0]) == SYMBOL_LANGUAGE (symbol))' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) [answered Y; input not from terminal]
I could validate on my side that applying this patch + rebuilding all
LTO-enabled libraries participating into the final link of my binary did solve
this issue.
Cheers,
Romain
>From gcc-bugs-return-619453-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 00:55:07 2018
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Subject: [Bug target/87780] [9 regression] ICE error: unrecognizable insn
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |x86_64-linux-gnu
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2018-10-29
Component|rtl-optimization |target
Ever confirmed|0 |1
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Can you attach the preprocessed source? Or reduce it as it is PGO/LTO.
Also it seems like a missing subreg.
>From gcc-bugs-return-619454-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 02:26:36 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/86965] nios2 optimizer forgets about known upper bits of register
Date: Mon, 29 Oct 2018 02:26:00 -0000
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sandra at gcc dot gnu.org changed:
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----------------------------------------------------------------------------
CC| |sandra at gcc dot gnu.org
Component|target |tree-optimization
--- Comment #1 from sandra at gcc dot gnu.org ---
I'm not sure what command-line options you were using, but with -O2 the bad2
case now generates the expected code.
Looking at the bad1 case, this is what's coming out of the tree optimizers, and
what the back end has to deal with for RTL expansion:
bad1 (const signed char * str, int * res)
{
int c;
signed char _1;
int _2;
int _11;
signed char _12;
_Bool _13;
<bb 2> [local count: 1073741824]:
_1 = *str_6(D);
c_8 = (int) _1;
_2 = c_8 + -48;
*res_9(D) = _2;
_12 = _1 & -33;
_13 = _12 == 69;
_11 = (int) _13;
return _11;
}
The code coming out of RTL expand is a mess too; there's no QImode "and"
instruction, it can't use the SImode "andi" instruction because that it only
accepts small unsigned constants (not -33), and then it has to sign-extend the
QImode result it computed because the comparison instructions need SImode too.
FWIW I think the real bug here is in the tree reassoc1 pass: it shouldn't
attempt this optimization if there is no optab support for bitwise AND in the
appropriate mode. So I'm reclassifying this as a tree-optimization bug rather
than a target bug; if the maintainers dispute that, feel free to switch it back
and I will take another look see if I can do something in the backend to
recombine the insns.
>From gcc-bugs-return-619455-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 02:56:22 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/86975] wrong peephole optimization applied on nios2 and mips targets
Date: Mon, 29 Oct 2018 02:56:00 -0000
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sandra at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sandra at gcc dot gnu.org
--- Comment #1 from sandra at gcc dot gnu.org ---
Given that this code is originating in the tree reassoc1 pass, wouldn't it be
better to just make that pass prefer to generate a code sequence with an
unsigned constant on all targets? It should work just as well as the current
negative-constant expansion does on targets that support unsigned constants,
right?
>From gcc-bugs-return-619456-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 02:58:54 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/86965] nios2 optimizer forgets about known upper bits of register
Date: Mon, 29 Oct 2018 02:58:00 -0000
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--- Comment #2 from sandra at gcc dot gnu.org ---
Also see PR86975, which is specifically about that negative constant operand to
the AND expression being generated by the range optimizer.
>From gcc-bugs-return-619457-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 03:14:08 2018
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Subject: [Bug tree-optimization/70390] [6/7/8/9 Regression] internal compiler error: in copy_loop_close_phi_args, at graphite-isl-ast-to-gimple.c:2114
Date: Mon, 29 Oct 2018 03:14:00 -0000
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--- Comment #13 from Arseny Solokha <asolokha at gmx dot com> ---
Actually, I cannot reproduce it on the trunk anymore as of r265575.
>From gcc-bugs-return-619458-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 03:16:54 2018
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Subject: [Bug rtl-optimization/87596] [9 Regression] ICE: Segmentation fault (in spill_hard_reg_in_range)
Date: Mon, 29 Oct 2018 03:16:00 -0000
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Arseny Solokha <asolokha at gmx dot com> changed:
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--- Comment #8 from Arseny Solokha <asolokha at gmx dot com> ---
Fixed on the trunk.
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Subject: [Bug c/71613] Useful warnings silenced when macros from system headers are used
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--- Comment #8 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to joseph@codesourcery.com from comment #6)
> Rather than piecemeal fixes with no evidence of completeness, I think we
> should disable the smarts around system header macro locations determining
> whether diagnostics appear (i.e., the system-header tests for disabling
> diagnostics should all use the expansion location), until we have a proper
> design for avoiding such issues and have systematically reviewed all
> diagnostics for conforming to such a design (if the design needs each
> diagnostic function call to be reviewed).
Coming up with a proper design might never happen though. I'd rather just have
the piecemeal fixes in the meantime.
>From gcc-bugs-return-619460-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 04:09:09 2018
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Subject: =?UTF-8?B?W0J1ZyBjLzcxNjEwXSBJbXByb3ZlIGxvY2F0aW9uIGZvciAid2FybmluZzog?= =?UTF-8?B?SVNPIEMgcmVzdHJpY3RzIGVudW1lcmF0b3IgdmFsdWVzIHRvIHJhbmdlIG9m?= =?UTF-8?B?IOKAmGludOKAmSBbLVdwZWRhbnRpY10iPw==?Date: Mon, 29 Oct 2018 04:09:00 -0000
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--- Comment #5 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to David Malcolm from comment #4)
> Candidate patch: https://gcc.gnu.org/ml/gcc-patches/2016-06/msg01658.html
Does this still apply?
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Subject: [Bug rtl-optimization/87780] [9 regression] ICE error: unrecognizable insn
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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CC| |segher at gcc dot gnu.org
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--- Comment #2 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Mine.
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Subject: [Bug rtl-optimization/87780] [9 regression] ICE error: unrecognizable insn
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--- Comment #3 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Mon Oct 29 07:36:45 2018
New Revision: 265582
URL: https://gcc.gnu.org/viewcvs?rev=265582&root=gcc&view=rev
Log:
combine: Fix various shortcomings in make_more_copies (PR87701, PR87780)
This rewrites most of make_more_copies, in the process fixing a few PRs
and some other bugs, and working around a few target problems. Certain
notes turn out to actually change the meaning of the RTL, so we cannot
drop them; and i386 takes subregs of hard regs.
PR rtl-optimization/87701
PR rtl-optimization/87780
* combine.c (make_more_copies): Rewrite.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/combine.c
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Subject: [Bug rtl-optimization/87701] [9 Regression] ICE in elimination_costs_in_insn, at reload1.c:3640 since r265398
Date: Mon, 29 Oct 2018 07:37:00 -0000
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--- Comment #8 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Mon Oct 29 07:36:45 2018
New Revision: 265582
URL: https://gcc.gnu.org/viewcvs?rev=265582&root=gcc&view=rev
Log:
combine: Fix various shortcomings in make_more_copies (PR87701, PR87780)
This rewrites most of make_more_copies, in the process fixing a few PRs
and some other bugs, and working around a few target problems. Certain
notes turn out to actually change the meaning of the RTL, so we cannot
drop them; and i386 takes subregs of hard regs.
PR rtl-optimization/87701
PR rtl-optimization/87780
* combine.c (make_more_copies): Rewrite.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/combine.c
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Subject: [Bug rtl-optimization/87701] [9 Regression] ICE in elimination_costs_in_insn, at reload1.c:3640 since r265398
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
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--- Comment #9 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug rtl-optimization/87780] [9 regression] ICE error: unrecognizable insn
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
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--- Comment #4 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-619467-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 07:57:41 2018
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From: "rvdv at vandewiele dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/85035] nios2: adding -fdelete-null-pointer-checks with -O2 enabled
Date: Mon, 29 Oct 2018 07:57:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85035
--- Comment #5 from rvdv at vandewiele dot com ---
Created attachment 44916
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44916&action=edit
assembly output 7.3.0
This is the assembly output i get with 7.3.0 (and as early as 6.1.0)
I have tried it with 8.1.0 and then I get the same output as you did.
So it seems like it was fixed in 8.1.0
>From gcc-bugs-return-619466-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 07:57:21 2018
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From: "ensadc at mailnesia dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87781] New: template disambiguator not after `::`, `.` or `->` is incorrectly accepted in an elaborated-type-specifier
Date: Mon, 29 Oct 2018 07:57:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87781
Bug ID: 87781
Summary: template disambiguator not after `::`, `.` or `->` is
incorrectly accepted in an elaborated-type-specifier
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: accepts-invalid
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https://wandbox.org/permlink/97lV1nw6gMGSDOct
----
template<class> class A;
class template A<int> *p;
----
GCC allows this with no warning or error. Both clang and MSVC reject this.
>From gcc-bugs-return-619468-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:02:18 2018
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/87776] [9 Regression] Compile time hog during RPO VN
Date: Mon, 29 Oct 2018 08:02:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87776
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-29
CC| |marxin at gcc dot gnu.org
Ever confirmed|0 |1
Known to fail| |9.0
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started to be slow with r264241.
>From gcc-bugs-return-619469-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:12:10 2018
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/87782] New: runtime error: load of value 1818451807, which is not a valid value for type 'expr_t'[9 Regression]
Date: Mon, 29 Oct 2018 08:12:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87782
Bug ID: 87782
Summary: runtime error: load of value 1818451807, which is not
a valid value for type 'expr_t'[9 Regression]
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Blocks: 63426
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It's a recent regression I believe. Using ubsan compiler one can see:
$ UBSAN_OPTIONS=print_stacktrace=1 gcc
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-ubsan/build/gcc/testsuite/gfortran.dg/deferred_character_23.f90
../../gcc/fortran/frontend-passes.c:660:46: runtime error: load of value
1818451807, which is not a valid value for type 'expr_t'
#0 0xf0a979 in constant_string_length
../../gcc/fortran/frontend-passes.c:660
#1 0xf0c907 in create_var ../../gcc/fortran/frontend-passes.c:823
#2 0xf07b5c in realloc_string_callback
../../gcc/fortran/frontend-passes.c:299
#3 0xf32069 in gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*,
void*), int (*)(gfc_expr**, int*, void*), void*)
../../gcc/fortran/frontend-passes.c:5073
#4 0xf149e2 in realloc_strings ../../gcc/fortran/frontend-passes.c:1517
#5 0xf14b4c in realloc_strings ../../gcc/fortran/frontend-passes.c:1522
#6 0xf0709f in gfc_run_passes(gfc_namespace*)
../../gcc/fortran/frontend-passes.c:179
#7 0xbb8898 in gfc_resolve(gfc_namespace*)
../../gcc/fortran/resolve.c:16736
#8 0xae429f in gfc_parse_file() ../../gcc/fortran/parse.c:6266
#9 0xc59435 in gfc_be_parse_file ../../gcc/fortran/f95-lang.c:204
#10 0x2444c25 in compile_file ../../gcc/toplev.c:455
#11 0x244da89 in do_compile ../../gcc/toplev.c:2172
#12 0x244e1cf in toplev::main(int, char**) ../../gcc/toplev.c:2307
#13 0x4971b0e in main ../../gcc/main.c:39
#14 0x7ffff608cfea in __libc_start_main ../csu/libc-start.c:308
#15 0x8669a9 in _start
(/home/marxin/bin/gcc2/lib/gcc/x86_64-pc-linux-gnu/9.0.0/f951+0x8669a9)
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426
[Bug 63426] [meta-bug] Issues found with -fsanitize=undefined
>From gcc-bugs-return-619470-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:17:16 2018
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From: "ensadc at mailnesia dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87783] New: `class A<int>;` is incorrectly accepted at namespace or class scope
Date: Mon, 29 Oct 2018 08:17:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87783
Bug ID: 87783
Summary: `class A<int>;` is incorrectly accepted at namespace
or class scope
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: accepts-invalid
Severity: normal
Priority: P3
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https://wandbox.org/permlink/L5JYCDnEfKmftRlr
----
template<class> class A {};
class A<int>;
----
Both Clang and MSVC appear to treat `class A<int>;` as an invalid explicit
template specialization. GCC does the same at block scope, but incorrectly
accepts this declaration at namespace or class scope.
>From gcc-bugs-return-619471-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:19:12 2018
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From: "yusemru at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/87784] New: A bug in tr2::dynamic_bitset::find_first
Date: Mon, 29 Oct 2018 08:19:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87784
Bug ID: 87784
Summary: A bug in tr2::dynamic_bitset::find_first
Product: gcc
Version: 8.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: yusemru at gmail dot com
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Created attachment 44917
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44917&action=edit
source code
Consider the following code:
#include <iostream>
#include <tr2/dynamic_bitset>
using namespace std;
using namespace tr2;
int main() {
dynamic_bitset<uint64_t> b;
b.push_back(0);
b.push_back(1);
dynamic_bitset<uint64_t> a;
a.push_back(0);
a.push_back(0);
cout << b.find_first() << ' ' << a.find_first() << endl;
return 0;
}
On my machine it prints 2 2, which is clearly wrong.
I'm using GCC 8.1.1 on Arch Linux x86-64
>From gcc-bugs-return-619472-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:28:34 2018
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/87785] New: [9 Regression] ICE in dr_misalignment, at tree-vectorizer.h:1245 on 454.calculix with -Ofast and -flto
Date: Mon, 29 Oct 2018 08:28:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87785
Bug ID: 87785
Summary: [9 Regression] ICE in dr_misalignment, at
tree-vectorizer.h:1245 on 454.calculix with -Ofast and
-flto
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
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I see following ICE on a Haswell machine:
during GIMPLE pass: vect
SPOOLES/SubMtx/src/SubMtx_solve.c: In function 'SubMtx_solve':
SPOOLES/SubMtx/src/SubMtx_solve.c:45:1: internal compiler error: in
dr_misalignment, at tree-vectorizer.h:1245
45 | SubMtx_solve (
| ^
0x783bf2 dr_misalignment(dr_vec_info*)
/home/marxin/Programming/gcc/gcc/tree-vectorizer.h:1245
0x784cf4 dr_misalignment(dr_vec_info*)
/home/marxin/Programming/gcc/gcc/tree.h:3232
0x784cf4 aligned_access_p
/home/marxin/Programming/gcc/gcc/tree-vectorizer.h:1263
0x784cf4 vect_supportable_dr_alignment(dr_vec_info*, bool)
/home/marxin/Programming/gcc/gcc/tree-vect-data-refs.c:6324
0xe85f6d vect_get_load_cost(_stmt_vec_info*, int, bool, unsigned int*, unsigned
int*, vec<stmt_info_for_cost, va_heap, vl_ptr>*, vec<stmt_info_for_cost,
va_heap, vl_ptr>*, bool)
/home/marxin/Programming/gcc/gcc/tree-vect-stmts.c:1231
0xe9f21d vect_model_load_cost
/home/marxin/Programming/gcc/gcc/tree-vect-stmts.c:1205
0xe9f21d vectorizable_load
/home/marxin/Programming/gcc/gcc/tree-vect-stmts.c:7595
0xea3ab2 vect_analyze_stmt(_stmt_vec_info*, bool*, _slp_tree*, _slp_instance*,
vec<stmt_info_for_cost, va_heap, vl_ptr>*)
/home/marxin/Programming/gcc/gcc/tree-vect-stmts.c:9568
0xecc346 vect_slp_analyze_node_operations_1
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2457
0xecc346 vect_slp_analyze_node_operations
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2504
0xecc23d vect_slp_analyze_node_operations
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2495
0xecc23d vect_slp_analyze_node_operations
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2495
0xecc23d vect_slp_analyze_node_operations
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2495
0xecc23d vect_slp_analyze_node_operations
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2495
0xecc23d vect_slp_analyze_node_operations
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2495
0xecc23d vect_slp_analyze_node_operations
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2495
0xed09ae vect_slp_analyze_operations(vec_info*)
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2536
0xed3371 vect_slp_analyze_bb_1
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2844
0xed3371 vect_slp_bb(basic_block_def*)
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:2931
0xed87c9 try_vectorize_loop_1
/home/marxin/Programming/gcc/gcc/tree-vectorizer.c:926
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163
[Bug 26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95)
>From gcc-bugs-return-619473-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:34:11 2018
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/87763] [9 Regression] aarch64 target testcases fail after r265398
Date: Mon, 29 Oct 2018 08:34:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |aarch64
Target Milestone|--- |9.0
Summary|[9.0 Regression] aarch64 |[9 Regression] aarch64
|target testcases fail after |target testcases fail after
|r265398 |r265398
>From gcc-bugs-return-619474-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:35:49 2018
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/87785] [9 Regression] ICE in dr_misalignment, at tree-vectorizer.h:1245 on 454.calculix with -Ofast and -flto
Date: Mon, 29 Oct 2018 08:35:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-29
CC| |rguenth at gcc dot gnu.org
Known to work| |8.2.0
Ever confirmed|0 |1
Known to fail| |9.0
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r265522.
>From gcc-bugs-return-619475-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:35:55 2018
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Subject: [Bug c++/87768] [8/9 Regression] ICE in tsubst_copy_and_build, at cp/pt.c:19002 when using concepts
Date: Mon, 29 Oct 2018 08:35:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Known to work| |7.3.1
Target Milestone|--- |8.3
Summary|ICE in |[8/9 Regression] ICE in
|tsubst_copy_and_build, at |tsubst_copy_and_build, at
|cp/pt.c:19002 when using |cp/pt.c:19002 when using
|concepts |concepts
>From gcc-bugs-return-619476-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:36:30 2018
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Subject: [Bug c++/87770] [8/9 Regression] ICE in type_dependent_expression_p, at cp/pt.c:25230
Date: Mon, 29 Oct 2018 08:36:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Known to work| |7.3.0
Target Milestone|--- |8.3
Summary|ICE in |[8/9 Regression] ICE in
|type_dependent_expression_p |type_dependent_expression_p
|, at cp/pt.c:25230 |, at cp/pt.c:25230
>From gcc-bugs-return-619477-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:38:01 2018
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87771] My first 3d printer, and I messed up trying to update the .ini file. So, I'm trying to put the original software back in it, and I get this internal compiler error
Date: Mon, 29 Oct 2018 08:38:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2018-10-29
Ever confirmed|0 |1
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Please provide a testcase - usually preprocessed source, commandline-options
with -v appended. See https://gcc.gnu.org/bugs.html
Note that GCC 5 and 6 are no longer supported so you need to update to GCC 7 or
newer.
>From gcc-bugs-return-619478-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:41:24 2018
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Subject: [Bug debug/87772] Crash with variadic template, constexpr constructor for templated non-literal type, using declaration
Date: Mon, 29 Oct 2018 08:41:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-29
Component|c++ |debug
Ever confirmed|0 |1
Known to fail| |7.3.1, 8.2.1, 9.0
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. GCC 7 fails the same way, GCC 6 doesn't like the testcase.
> g++-8 t.ii -std=c++17 -g -B /abuild/rguenther/gcc8-g/gcc
main.cpp: In instantiation of ‘struct
Parser<std::array<std::array<SentenceBase<void>, 1>, 1> >’:
main.cpp:24:53: required from here
main.cpp:16:8: internal compiler error: tree check: expected class ‘type’, have
‘exceptional’ (error_mark) in equate_type_number_to_die, at dwarf2out.c:5773
0x164f511 tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
/space/rguenther/src/svn/gcc-8-branch/gcc/tree.c:9384
0x848ea8 tree_class_check(tree_node*, tree_code_class, char const*, int, char
const*)
/space/rguenther/src/svn/gcc-8-branch/gcc/tree.h:3262
0xd4bc9b equate_type_number_to_die
/space/rguenther/src/svn/gcc-8-branch/gcc/dwarf2out.c:5773
0xd8099e gen_typedef_die
/space/rguenther/src/svn/gcc-8-branch/gcc/dwarf2out.c:25197
0xd83ad7 gen_decl_die
/space/rguenther/src/svn/gcc-8-branch/gcc/dwarf2out.c:26215
>From gcc-bugs-return-619479-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:42:03 2018
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Subject: [Bug c++/87786] New: Failed to mangle sizeof...(ArgPack) with template-alias captured arguments
Date: Mon, 29 Oct 2018 08:42:00 -0000
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Bug ID: 87786
Summary: Failed to mangle sizeof...(ArgPack) with
template-alias captured arguments
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
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Reproducing code (at https://godbolt.org/z/dbqZu7):
```
#include <cstddef>
double g(int);
template <size_t X>
struct M {};
template <class... T>
using make_M = M<sizeof...(T)>;
template <class... T>
auto f(T&&... x)
-> make_M<decltype(g(x))...>
{
using _noop = int[];
(void)_noop { ((void)x, 0)... };
return {};
}
auto m = f(12, 34);
```
It fails to compile with versions >= 7. At first it looks like a regression;
but it probably is not. It's more like an incomplete attempt (in 7.x) to fix a
previous mangling bug. 6.x and earlier does compile, but the mangled output
used "sz" instead of "sP"; gcc/cp/mangle.c on trunk actually contains a line
`write_string ("sP");`, but seems it did not reach there in this example.
>From gcc-bugs-return-619481-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:54:40 2018
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Subject: [Bug rtl-optimization/87780] [9 regression] ICE error: unrecognizable insn
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87780
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |9.0
>From gcc-bugs-return-619480-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:54:36 2018
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Subject: [Bug c/87779] Extremely large expression causes segfault
Date: Mon, 29 Oct 2018 08:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87779
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-29
Version|unknown |8.2.1
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
It simply runs out of stack (recursing). Raising the process stack limit with
ulimit -s unlimited makes it work quickly:
> /usr/bin/time gcc-8 t.c
0.22user 0.18system 0:00.40elapsed 99%CPU (0avgtext+0avgdata
352956maxresident)k
0inputs+960outputs (0major+89197minor)pagefaults 0swaps
(gdb) bt
#0 0x0000000001d72282 in LINEMAPS_MACRO_LOWEST_LOCATION (set=0x7ffff7fef000)
at
/space/rguenther/src/svn/gcc-8-branch/gcc/../libcpp/include/line-map.h:1004
#1 0x0000000001d95d9e in linemap_location_from_macro_expansion_p (
set=0x7ffff7fef000, location=19837408)
at /space/rguenther/src/svn/gcc-8-branch/libcpp/line-map.c:1256
#2 0x0000000001d954a1 in linemap_lookup (set=0x7ffff7fef000, line=19837408)
at /space/rguenther/src/svn/gcc-8-branch/libcpp/line-map.c:946
#3 0x0000000001d94104 in pure_location_p (set=0x7ffff7fef000, loc=19837408)
at /space/rguenther/src/svn/gcc-8-branch/libcpp/line-map.c:310
#4 0x0000000001d93bd8 in get_combined_adhoc_loc (set=0x7ffff7fef000,
locus=19837408, src_range=..., data=0x0)
at /space/rguenther/src/svn/gcc-8-branch/libcpp/line-map.c:177
#5 0x00000000013d7e99 in COMBINE_LOCATION_DATA (set=0x7ffff7fef000,
loc=19837408, src_range=..., block=0x0)
at
/space/rguenther/src/svn/gcc-8-branch/gcc/../libcpp/include/line-map.h:1054
#6 0x0000000001d9269a in _cpp_lex_direct (pfile=0x2ba35a0)
at /space/rguenther/src/svn/gcc-8-branch/libcpp/lex.c:3161
#7 0x0000000001d9106f in _cpp_lex_token (pfile=0x2ba35a0)
at /space/rguenther/src/svn/gcc-8-branch/libcpp/lex.c:2597
#8 0x0000000001d9c6ad in cpp_get_token_1 (pfile=0x2ba35a0,
location=0x7ffff68871ec)
--Type <RET> for more, q to quit, c to continue without paging--
at /space/rguenther/src/svn/gcc-8-branch/libcpp/macro.c:2718
#9 0x0000000001d9caf7 in cpp_get_token_with_location (pfile=0x2ba35a0,
loc=0x7ffff68871ec)
at /space/rguenther/src/svn/gcc-8-branch/libcpp/macro.c:2904
#10 0x000000000092be5a in c_lex_with_flags (value=0x7ffff68871f0,
loc=0x7ffff68871ec, cpp_flags=0x7ffff68871f8 "", lex_flags=0)
at /space/rguenther/src/svn/gcc-8-branch/gcc/c-family/c-lex.c:403
#11 0x000000000088fbe4 in c_lex_one_token (parser=0x7ffff68871e0,
token=0x7ffff68871e8)
at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:251
#12 0x0000000000890014 in c_parser_peek_token (parser=0x7ffff68871e0)
at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:435
#13 0x000000000089f512 in c_parser_unary_expression (parser=0x7ffff68871e0)
at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:7209
#14 0x000000000089ed81 in c_parser_cast_expression (parser=0x7ffff68871e0,
after=0x0) at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:7104
#15 0x000000000089f533 in c_parser_unary_expression (parser=0x7ffff68871e0)
at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:7210
#16 0x000000000089ed81 in c_parser_cast_expression (parser=0x7ffff68871e0,
after=0x0) at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:7104
#17 0x000000000089f533 in c_parser_unary_expression (parser=0x7ffff68871e0)
at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:7210
#18 0x000000000089ed81 in c_parser_cast_expression (parser=0x7ffff68871e0,
--Type <RET> for more, q to quit, c to continue without paging--
after=0x0) at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:7104
#19 0x000000000089f533 in c_parser_unary_expression (parser=0x7ffff68871e0)
at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:7210
#20 0x000000000089ed81 in c_parser_cast_expression (parser=0x7ffff68871e0,
after=0x0) at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:7104
#21 0x000000000089f533 in c_parser_unary_expression (parser=0x7ffff68871e0)
at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:7210
#22 0x000000000089ed81 in c_parser_cast_expression (parser=0x7ffff68871e0,
...
#41908 0x000000000089ed81 in c_parser_cast_expression (parser=0x7ffff68871e0,
#41909 0x000000000089d3ae in c_parser_binary_expression (
parser=0x7ffff68871e0, after=0x0, omp_atomic_lhs=0x0)
at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:6907
#41910 0x000000000089cb4d in c_parser_conditional_expression (
parser=0x7ffff68871e0, after=0x0, omp_atomic_lhs=0x0)
at /space/rguenther/src/svn/gcc-8-branch/gcc/c/c-parser.c:6645
...
I guess it's not easy to avoid this given the structure of the parser.
We are already trying to raise the stack limit to 64MB via stack_limit_increase
(). Maybe we should try raising it even further.
>From gcc-bugs-return-619482-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:55:15 2018
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Subject: [Bug fortran/87782] [9 Regression] runtime error: load of value 1818451807, which is not a valid value for type 'expr_t'
Date: Mon, 29 Oct 2018 08:55:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P4
Target Milestone|--- |9.0
>From gcc-bugs-return-619483-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 08:59:14 2018
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/87787] New: [9 Regression] runtime error: null pointer passed as argument 2, which is declared to never be null
Date: Mon, 29 Oct 2018 08:59:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87787
Bug ID: 87787
Summary: [9 Regression] runtime error: null pointer passed as
argument 2, which is declared to never be null
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
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CC: jwakely.gcc at gmail dot com
Target Milestone: ---
Would be also a recent regression. I see following for ubsan-bootstrapped
compiler:
$ make check RUNTESTFLAGS="gcov.exp=gcov-pr86536.c"
...
Creating 'gcov-pr86536.c.gcov'
/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bits/stl_uninitialized.h:907:24:
runtime error: null pointer passed as argument 2, which is declared to never be
null
#0 0x460a82 in std::enable_if<std::__is_trivially_relocatable<char
const*>::value, char const**>::type std::__relocate_a_1<char const*, char
const*>(char const**, char const**, char const**, std::allocator<char const*>&)
/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bits/stl_uninitialized.h:907
#1 0x460a82 in char const** std::__relocate_a<char const**, char const**,
std::allocator<char const*> >(char const**, char const**, char const**,
std::allocator<char const*>&)
/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bits/stl_uninitialized.h:938
#2 0x460a82 in void std::vector<char const*, std::allocator<char const*>
>::_M_realloc_insert<char const*>(__gnu_cxx::__normal_iterator<char const**,
std::vector<char const*, std::allocator<char const*> > >, char const*&&)
/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bits/vector.tcc:464
#3 0x41dae9 in void std::vector<char const*, std::allocator<char const*>
>::emplace_back<char const*>(char const*&&)
/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bits/vector.tcc:122
#4 0x41dae9 in std::vector<char const*, std::allocator<char const*>
>::push_back(char const*&&)
/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bits/stl_vector.h:1164
#5 0x41dae9 in output_lines ../../gcc/gcov.c:2973
#6 0x4229a7 in output_gcov_file ../../gcc/gcov.c:1284
#7 0x4229a7 in generate_results ../../gcc/gcov.c:1389
#8 0x40e4f9 in main ../../gcc/gcov.c:813
#9 0x7ffa344f9724 in __libc_start_main (/lib64/libc.so.6+0x20724)
#10 0x410248 in _start
(/home/mliska/Programming/gcc/objdir/gcc/gcov+0x410248)
It's about pushing a 'const char *' into a vector, I hope the usage is fine in
gcov.c. Jonathan can you please take a look?
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Subject: [Bug libstdc++/87787] [9 Regression] runtime error: null pointer passed as argument 2, which is declared to never be null
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2018-10-29
Known to work| |8.2.0
Blocks| |63426
Target Milestone|--- |9.0
Known to fail| |9.0
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426
[Bug 63426] [meta-bug] Issues found with -fsanitize=undefined
>From gcc-bugs-return-619485-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 09:04:54 2018
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Subject: [Bug libstdc++/87787] [9 Regression] runtime error: null pointer passed as argument 2, which is declared to never be null
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--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
That would be my recent commit. We will probably need to add if(size!=0) in
front of the call to memmove...
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Subject: [Bug bootstrap/87788] New: [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87788
Bug ID: 87788
Summary: [9 Regression] Bootstrap fails for
x86_64-apple-darwin* with default languages selection
after D addition.
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: iains at gcc dot gnu.org
Target Milestone: ---
bootstrap fails at stage #2 with:
../../src/gcc/d/dmd/constfold.c: In function 'UnionExp Cast(Loc, Type*, Type*,
Expression*)':
../../src/gcc/d/dmd/constfold.c:1162:50: error: conversion from 'real_t' {aka
'longdouble'} to 'sinteger_t' {aka 'long int'} is ambiguous
1162 | result = (d_int8)(sinteger_t)r;
| ^
In file included from ../../src/gcc/d/dmd/root/ctfloat.h:11,
from ../../src/gcc/d/dmd/globals.h:14,
from ../../src/gcc/d/dmd/errors.h:13,
from ../../src/gcc/d/dmd/constfold.c:22:
../../src/gcc/d/longdouble.h:54:3: note: candidate: 'longdouble::operator
int32_t()'
54 | operator int32_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:57:3: note: candidate: 'longdouble::operator
int64_t()'
57 | operator int64_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:60:3: note: candidate: 'longdouble::operator
uint32_t()'
60 | operator uint32_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:63:3: note: candidate: 'longdouble::operator
uint64_t()'
63 | operator uint64_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:66:3: note: candidate: 'longdouble::operator
bool()'
66 | operator bool (void)
| ^~~~~~~~
../../src/gcc/d/dmd/constfold.c:1166:50: error: conversion from 'real_t' {aka
'longdouble'} to 'dinteger_t' {aka 'long unsigned int'} is ambiguous
1166 | result = (d_uns8)(dinteger_t)r;
| ^
In file included from ../../src/gcc/d/dmd/root/ctfloat.h:11,
from ../../src/gcc/d/dmd/globals.h:14,
from ../../src/gcc/d/dmd/errors.h:13,
from ../../src/gcc/d/dmd/constfold.c:22:
../../src/gcc/d/longdouble.h:54:3: note: candidate: 'longdouble::operator
int32_t()'
54 | operator int32_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:57:3: note: candidate: 'longdouble::operator
int64_t()'
57 | operator int64_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:60:3: note: candidate: 'longdouble::operator
uint32_t()'
60 | operator uint32_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:63:3: note: candidate: 'longdouble::operator
uint64_t()'
63 | operator uint64_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:66:3: note: candidate: 'longdouble::operator
bool()'
66 | operator bool (void)
| ^~~~~~~~
../../src/gcc/d/dmd/constfold.c:1169:51: error: conversion from 'real_t' {aka
'longdouble'} to 'sinteger_t' {aka 'long int'} is ambiguous
1169 | result = (d_int16)(sinteger_t)r;
| ^
In file included from ../../src/gcc/d/dmd/root/ctfloat.h:11,
from ../../src/gcc/d/dmd/globals.h:14,
from ../../src/gcc/d/dmd/errors.h:13,
from ../../src/gcc/d/dmd/constfold.c:22:
../../src/gcc/d/longdouble.h:54:3: note: candidate: 'longdouble::operator
int32_t()'
54 | operator int32_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:57:3: note: candidate: 'longdouble::operator
int64_t()'
57 | operator int64_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:60:3: note: candidate: 'longdouble::operator
uint32_t()'
60 | operator uint32_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:63:3: note: candidate: 'longdouble::operator
uint64_t()'
63 | operator uint64_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:66:3: note: candidate: 'longdouble::operator
bool()'
66 | operator bool (void)
| ^~~~~~~~
../../src/gcc/d/dmd/constfold.c:1173:51: error: conversion from 'real_t' {aka
'longdouble'} to 'dinteger_t' {aka 'long unsigned int'} is ambiguous
1173 | result = (d_uns16)(dinteger_t)r;
| ^
In file included from ../../src/gcc/d/dmd/root/ctfloat.h:11,
from ../../src/gcc/d/dmd/globals.h:14,
from ../../src/gcc/d/dmd/errors.h:13,
from ../../src/gcc/d/dmd/constfold.c:22:
../../src/gcc/d/longdouble.h:54:3: note: candidate: 'longdouble::operator
int32_t()'
54 | operator int32_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:57:3: note: candidate: 'longdouble::operator
int64_t()'
57 | operator int64_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:60:3: note: candidate: 'longdouble::operator
uint32_t()'
60 | operator uint32_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:63:3: note: candidate: 'longdouble::operator
uint64_t()'
63 | operator uint64_t (void)
| ^~~~~~~~
../../src/gcc/d/longdouble.h:66:3: note: candidate: 'longdouble::operator
bool()'
66 | operator bool (void)
| ^~~~~~~~
make[3]: *** [d/constfold.o] Error 1
make[2]: *** [all-stage2-gcc] Error 2
make[1]: *** [stage2-bubble] Error 2
make: *** [all] Error 2
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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/58372] internal compiler error: ix86_compute_frame_layout
Date: Mon, 29 Oct 2018 09:11:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58372
--- Comment #15 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to David Grayson from comment #14)
> Does anyone have an idea of how to fix this bug for real? What values
> should crtl->preferred_stack_boundary crtl->stack_alignment_needed really
> have on Windows, and should they be controllable from the command-line?
> Where do they get set?
>
> --David
Reading symbols from /ssd/uros/gcc-build-xxx/gcc/cc1plus...done.
(gdb) watch x_rtl.preferred_stack_boundary
Hardware watchpoint 1: x_rtl.preferred_stack_boundary
(gdb) r
Starting program: /ssd/uros/gcc-build-xxx/gcc/cc1plus pr58372.C
Hardware watchpoint 1: x_rtl.preferred_stack_boundary
Old value = 0
New value = 32
0x0000000000b930dc in rtl_data::init_stack_alignment (this=0x23c8ac0 <x_rtl>)
at /home/uros/gcc-svn/trunk/gcc/emit-rtl.c:6636
6636 preferred_stack_boundary = STACK_BOUNDARY;
Hardware watchpoint 1: x_rtl.preferred_stack_boundary
Old value = 32
New value = 128
emit_library_call_value_1(int, rtx_def*, rtx_def*, libcall_type, machine_mode,
int, std::pair<rtx_def*, machine_mode>*) ()
at /home/uros/gcc-svn/trunk/gcc/calls.c:4744
4744 if (outmode != VOIDmode)
(gdb) list
4739 if (crtl->preferred_stack_boundary < PREFERRED_STACK_BOUNDARY)
4740 crtl->preferred_stack_boundary = PREFERRED_STACK_BOUNDARY;
4741
4742 /* If this kind of value comes back in memory,
4743 decide where in memory it should come back. */
4744 if (outmode != VOIDmode)
4745 {
4746 tfom = lang_hooks.types.type_for_mode (outmode, 0);
4747 if (aggregate_value_p (tfom, 0))
4748 {
This happen when building SjLj landing pads:
#0 emit_library_call_value_1(int, rtx_def*, rtx_def*, libcall_type,
machine_mode, int, std::pair<rtx_def*, machine_mode>*)
() at /home/uros/gcc-svn/trunk/gcc/calls.c:4744
#1 0x0000000000b9b36c in emit_library_call (arg1_mode=<optimized out>,
arg1=<optimized out>, outmode=E_VOIDmode,
fn_type=LCT_NORMAL, fun=<optimized out>) at
/home/uros/gcc-svn/trunk/gcc/rtl.h:4123
#2 sjlj_emit_function_enter(rtx_code_label*) () at
/home/uros/gcc-svn/trunk/gcc/except.c:1202
#3 0x0000000000b9f20a in sjlj_build_landing_pads () at
/home/uros/gcc-svn/trunk/gcc/except.c:1481
#4 finish_eh_generation() () at /home/uros/gcc-svn/trunk/gcc/except.c:1510
Adding -mpreferred-stack-boundary=2 "fixes" compilation.
If you want to experiment, try the following patch:
Index: config/i386/mingw32.h
===================================================================
--- config/i386/mingw32.h (revision 265582)
+++ config/i386/mingw32.h (working copy)
@@ -251,6 +251,10 @@
#undef CHECK_EXECUTE_STACK_ENABLED
#define CHECK_EXECUTE_STACK_ENABLED flag_setstackexecutable
+#undef PREFERRED_STACK_BOUNDARY_DEFAULT
+#define PREFERRED_STACK_BOUNDARY_DEFAULT \
+ (TARGET_64BIT ? 128 : MIN_STACK_BOUNDARY)
+
/* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygming. */
/* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */
#if DWARF2_UNWIND_INFO
But I don't know the details of MS ABI, so I can't tell if the patch is
correct.
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Subject: [Bug libstdc++/87787] [9 Regression] runtime error: null pointer passed as argument 2, which is declared to never be null
Date: Mon, 29 Oct 2018 09:16:00 -0000
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--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Marc Glisse from comment #1)
> That would be my recent commit. We will probably need to add if(size!=0) in
> front of the call to memmove...
That's what we already do in stl_algobase.h and fstream.tcc. I notice that we
do not do it in char_traits.h for the generic version (we do for each
specialization). I don't know if memcpy in locale_facets.h is safe either.
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Subject: [Bug bootstrap/87789] New: D does not build on powerpc64-linux
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87789
Bug ID: 87789
Summary: D does not build on powerpc64-linux
Product: gcc
Version: unknown
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Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
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$HOME/src/gcc/libphobos/src/std/internal/math/gammafunction.d:259:5: error:
static assert "missing MAXGAMMA for other real types"
>From gcc-bugs-return-619490-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 09:25:09 2018
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Subject: [Bug tree-optimization/87785] [9 Regression] ICE in dr_misalignment, at tree-vectorizer.h:1245 on 454.calculix with -Ofast and -flto
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Target Milestone|--- |9.0
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.
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Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |x86_64-apple-darwin*
Target Milestone|--- |9.0
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Subject: [Bug c++/58372] internal compiler error: ix86_compute_frame_layout
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58372
--- Comment #16 from Kai Tietz <ktietz at gcc dot gnu.org> ---
(In reply to Uroš Bizjak from comment #15)
> (In reply to David Grayson from comment #14)
>
> > Does anyone have an idea of how to fix this bug for real? What values
> > should crtl->preferred_stack_boundary crtl->stack_alignment_needed really
> > have on Windows, and should they be controllable from the command-line?
> > Where do they get set?
> >
> > --David
>
> Reading symbols from /ssd/uros/gcc-build-xxx/gcc/cc1plus...done.
> (gdb) watch x_rtl.preferred_stack_boundary
>
> Hardware watchpoint 1: x_rtl.preferred_stack_boundary
>
> (gdb) r
> Starting program: /ssd/uros/gcc-build-xxx/gcc/cc1plus pr58372.C
> Hardware watchpoint 1: x_rtl.preferred_stack_boundary
>
> Old value = 0
> New value = 32
> 0x0000000000b930dc in rtl_data::init_stack_alignment (this=0x23c8ac0
> <x_rtl>) at /home/uros/gcc-svn/trunk/gcc/emit-rtl.c:6636
> 6636 preferred_stack_boundary = STACK_BOUNDARY;
>
> Hardware watchpoint 1: x_rtl.preferred_stack_boundary
>
> Old value = 32
> New value = 128
> emit_library_call_value_1(int, rtx_def*, rtx_def*, libcall_type,
> machine_mode, int, std::pair<rtx_def*, machine_mode>*) ()
> at /home/uros/gcc-svn/trunk/gcc/calls.c:4744
> 4744 if (outmode != VOIDmode)
>
> (gdb) list
> 4739 if (crtl->preferred_stack_boundary < PREFERRED_STACK_BOUNDARY)
> 4740 crtl->preferred_stack_boundary = PREFERRED_STACK_BOUNDARY;
> 4741
> 4742 /* If this kind of value comes back in memory,
> 4743 decide where in memory it should come back. */
> 4744 if (outmode != VOIDmode)
> 4745 {
> 4746 tfom = lang_hooks.types.type_for_mode (outmode, 0);
> 4747 if (aggregate_value_p (tfom, 0))
> 4748 {
>
> This happen when building SjLj landing pads:
>
> #0 emit_library_call_value_1(int, rtx_def*, rtx_def*, libcall_type,
> machine_mode, int, std::pair<rtx_def*, machine_mode>*)
> () at /home/uros/gcc-svn/trunk/gcc/calls.c:4744
> #1 0x0000000000b9b36c in emit_library_call (arg1_mode=<optimized out>,
> arg1=<optimized out>, outmode=E_VOIDmode,
> fn_type=LCT_NORMAL, fun=<optimized out>) at
> /home/uros/gcc-svn/trunk/gcc/rtl.h:4123
> #2 sjlj_emit_function_enter(rtx_code_label*) () at
> /home/uros/gcc-svn/trunk/gcc/except.c:1202
> #3 0x0000000000b9f20a in sjlj_build_landing_pads () at
> /home/uros/gcc-svn/trunk/gcc/except.c:1481
> #4 finish_eh_generation() () at /home/uros/gcc-svn/trunk/gcc/except.c:1510
>
> Adding -mpreferred-stack-boundary=2 "fixes" compilation.
>
> If you want to experiment, try the following patch:
>
> Index: config/i386/mingw32.h
> ===================================================================
> --- config/i386/mingw32.h (revision 265582)
> +++ config/i386/mingw32.h (working copy)
> @@ -251,6 +251,10 @@
> #undef CHECK_EXECUTE_STACK_ENABLED
> #define CHECK_EXECUTE_STACK_ENABLED flag_setstackexecutable
>
> +#undef PREFERRED_STACK_BOUNDARY_DEFAULT
> +#define PREFERRED_STACK_BOUNDARY_DEFAULT \
> + (TARGET_64BIT ? 128 : MIN_STACK_BOUNDARY)
> +
> /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygming. */
> /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */
> #if DWARF2_UNWIND_INFO>
> But I don't know the details of MS ABI, so I can't tell if the patch is
> correct.
The x64 ABI part is correct, as for x64 abit there is just 16-byte stack
alignment. For x86 ms abi things aren't that strict AFAIK. The common stack
alignment on function entry is the natural one, but there is in general no
strict requirement for it. So the patch looks fine, but should be commented in
the release notes, as there might be fallout seen caused by it.
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From: "lumosimann at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/87663] using / typedef on recursive template leads to long compile time
Date: Mon, 29 Oct 2018 09:43:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87663
--- Comment #7 from Lukas Mosimann <lumosimann at gmail dot com> ---
Thanks! I will do that.
First lets sum up state here such that it's not required to read through all
comments. I am playing around with integral constant and an "exponential
wrapper". First the "exponential wrapper":
```
template <int X, int A>
struct F : integral_constant<int, F<X + (1 << A), A - 1>::value -
F<X, A - 1>::value> {};
template <int X>
struct F<X, 0> : integral_constant<int, X> {};
int main() {
F<0, 14>::value;
return 0;
}
```
I.e., we simply instantiate a huge set of integral constants. Now I play with
different integral_constants a measure compilation time.
=== V1 0.8s ===
template <typename T, T v>
struct integral_constant {
static constexpr T value = v;
};
=== V2 4.4s === (used by type_traits)
template <typename T, T v>
struct integral_constant {
static constexpr T value = v;
using value_type = T;
};
=== V3 4.2s ===
template <typename T, T v>
struct integral_constant {
using value_type = T;
static constexpr T value = v;
};
=== V4 23 s === (!!)
template <typename T, T v>
struct integral_constant {
using value_type = T;
static constexpr value_type value = v;
};
Currently I am working with a modified version of V2 (4.4s):
template <typename T, T v>
struct integral_constant {
static constexpr T value = v;
using value_type = int;
};
In this case I see that we always create a new type variant of int (I guess one
per integral constant) through set_underlying type, and at another point we
iterate through large parts of the list to get the correct variant again (over
build_qualified_type). More precisely:
1) We first do build_qualified_type for value. This iterates through the whole
list and at some point finds "plain const int" (no typedef) - no new type
variant required.
2) We create a new type variant of int referring to the alias in this specific
integral_constant. This is prepended to the list of type variants, i.e., in the
next 1) we need to iterate over one additional entry than before to find "plain
const int".
Therefore, integral constant instantiation gets more expensive with each
instance.
I have seen the comment above set_underlying type, but my question is more
whether this is always needed (it is only talking about debugging and protoize
- so is it also required in a build without debugging information?).
And yes, it might also be possible to do it more efficient: Do all variants
need to be stored in this list? Is this the natural order for a list - and is a
list the right data structure for this?
I will post to the mailing list pointing to this comment.
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From: "tnfchris at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/81878] --disable-bootstrap --enable-languagesa fails
Date: Mon, 29 Oct 2018 09:46:00 -0000
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--- Comment #40 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
> In most practical cases -B../../ is just redundant with $(CXX). It's only when you configure like Richard that you may run into issues, but then we can assume that we're on Linux so the paths are OK I think.
Ah ok, I'll update to trunk and run a bootstrap today then and submit a patch
tomorrow. Thanks!
--- Comment #41 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
Author: tnfchris
Date: Mon Oct 29 09:45:50 2018
New Revision: 265583
URL: https://gcc.gnu.org/viewcvs?rev=265583&root=gcc&view=rev
Log:
Fix mingw-w64 Ada native bootstrap (PR81878).
Due to the changes in PR81878 builds of GCC8 and trunk are impossible
with Ada enabled[1][2].
The reason the patch breaks the bootstrap is due to how gnatlink receives it's
arguments.
gnatlink is usually invoked as
$(GNATLINK) -v gnatcmd -o ../../gnat$(exeext) \
--GCC="$(CC) $(ADA_INCLUDES)" --LINK="$(GCC_LINK)" $(TOOLS_LIBS)
so it passes $(CC) and $(GCC_LINK) as quoted arguments to the program.
Because of this quotation the msys2 shell does not translate any paths in
$(CC) and $(GCC_LINK) from their Unix version to their Windows version.
Furthermore because there are multiple paths in the values separated by space
and because the paths often contain a prefix like -L (e.g. -L/f/foo) we can't
use `fix_srcfile_path` to fix this.
An alternative solution would have been to create a stub program that echos the
commandline options it receives back, and calling this program with $(CC) and
$(GCC_LINK)
unquoted to get them translated. However this was a bit more invasive.
So instead for native compilations we add -B../../ such that it picks up the
lto plugin
from the previous built compiler. Since it's native there shouldn't be a
mismatch here.
[1] https://github.com/Alexpux/MINGW-packages/pull/3877#issuecomment-408651809
[2] https://gcc.gnu.org/ml/gcc/2018-07/msg00410.html
gnattools/ChangeLog:
PR ada/81878
* Makefile.in (TOOLS_FLAGS_TO_PASS_NATIVE): Add -B ../../.
Modified:
trunk/gnattools/ChangeLog
trunk/gnattools/Makefile.in
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Subject: [Bug tree-optimization/87790] [9 Regression] ICE in vect_get_vec_def_for_operand_1, at tree-vect-stmts.c:1475
Date: Mon, 29 Oct 2018 10:17:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2018-10-29
CC| |rguenth at gcc dot gnu.org
Known to work| |8.2.0
Target Milestone|--- |9.0
Known to fail| |9.0
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/87790] New: [9 Regression] ICE in vect_get_vec_def_for_operand_1, at tree-vect-stmts.c:1475
Date: Mon, 29 Oct 2018 10:17:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87790
Bug ID: 87790
Summary: [9 Regression] ICE in vect_get_vec_def_for_operand_1,
at tree-vect-stmts.c:1475
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
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Reporter: marxin at gcc dot gnu.org
Target Milestone: ---
Following cases an ICE:
$ cat dfa.i
int a, b;
void c(int d[][8]) {
int e, f;
for (; b; b++) {
e = d[b][0] % 4 * 21;
if (e >= 21)
e--;
a = d[b][0] - e;
f = 1;
for (; f != 8; f++)
d[b][f] = a;
}
}
$ gcc dfa.i -Ofast -fprofile-generate -c -march=znver1
during GIMPLE pass: vect
dfa.i: In function ‘c’:
dfa.i:2:6: internal compiler error: in vect_get_vec_def_for_operand_1, at
tree-vect-stmts.c:1475
2 | void c(int d[][8]) {
| ^
0xf7cdce vect_get_vec_def_for_operand_1(_stmt_vec_info*, vect_def_type)
../../gcc/tree-vect-stmts.c:1475
0xf7f2ad vect_get_vec_def_for_operand(tree_node*, _stmt_vec_info*, tree_node*)
../../gcc/tree-vect-stmts.c:1554
0xf86bb5 vectorizable_condition(_stmt_vec_info*, gimple_stmt_iterator*,
_stmt_vec_info**, tree_node*, int, _slp_tree*, vec<stmt_info_for_cost, va_heap,
vl_ptr>*)
../../gcc/tree-vect-stmts.c:8916
0xf9af25 vect_transform_stmt(_stmt_vec_info*, gimple_stmt_iterator*,
_slp_tree*, _slp_instance*)
../../gcc/tree-vect-stmts.c:9676
0xf9cfd3 vect_transform_loop_stmt
../../gcc/tree-vect-loop.c:8146
0xfaf2f3 vect_transform_loop(_loop_vec_info*)
../../gcc/tree-vect-loop.c:8357
0xfceb85 try_vectorize_loop_1
../../gcc/tree-vectorizer.c:965
0xfcf636 vectorize_loops()
../../gcc/tree-vectorizer.c:1097
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
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Subject: [Bug tree-optimization/87790] [9 Regression] ICE in vect_get_vec_def_for_operand_1, at tree-vect-stmts.c:1475
Date: Mon, 29 Oct 2018 10:18:00 -0000
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--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r265528.
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From: "widlundtobias at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/87791] New: Unnecessary zero-initialization of constexpr unions in arrays
Date: Mon, 29 Oct 2018 11:08:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87791
Bug ID: 87791
Summary: Unnecessary zero-initialization of constexpr unions in
arrays
Product: gcc
Version: 8.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: widlundtobias at gmail dot com
Target Milestone: ---
Created attachment 44918
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44918&action=edit
Preprocessed code
Given a type that uses a constexpr-enabled union to store either a value, or an
empty dummy struct as followed.
>struct Container
>{
> struct Dummy{};
> union Storage
> {
> constexpr Storage(): dummy(Dummy())
> {
>
> }
> Dummy dummy;
> int value;
> };
>
> Storage storage;
>};
This code is a legal way to initialise the union with nothing, meaning that
it's legal for the compiler to leave the data uninitialised, even in constexpr
contexts.
However, if the above Container type is used like so:
>using Arr = std::array<Container, 4000>;
>
>Arr makeA()
>{
> Arr a;
> return a;
>}
Then the compiled code fills the array with zeroes, using memset.
Excerpt from compiled code:
>_Z5makeAv:
>.LFB1099:
> .cfi_startproc
> subq $8, %rsp
> .cfi_def_cfa_offset 16
> movl $16000, %edx
> xorl %esi, %esi
> call memset@PLT <----unnecessary runtime overhead
> addq $8, %rsp
> .cfi_def_cfa_offset 8
> ret
> .cfi_endproc
>.LFE1099:
> .size _Z5makeAv, .-_Z5makeAv
> .section .text.startup,"ax",@progbits
> .p2align 4,,15
> .globl main
> .type main, @function
This is unnecessary and problematic as it incurs runtime overhead when using
the union-based storage as a way to store items that can possibly be
uninitialised, as a constexpr-friendly alternative to placement-new.
Happens even with -O3 and only happens if the `constexpr` keyword is present.
Preprocessed code attached.
Godbolt CE link for illustrative purpose: https://godbolt.org/z/FPnEy3
Output of gcc -v -save-temps -O3 main.cpp:
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib
--libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info
--with-bugurl=https://bugs.archlinux.org/
--enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared
--enable-threads=posix --enable-libmpx --with-system-zlib --with-isl
--enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu
--disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object
--enable-linker-build-id --enable-lto --enable-plugin
--enable-install-libiberty --with-linker-hash-style=gnu
--enable-gnu-indirect-function --enable-multilib --disable-werror
--enable-checking=release --enable-default-pie --enable-default-ssp
--enable-cet=auto
Thread model: posix
gcc version 8.2.1 20180831 (GCC)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O3' '-mtune=generic' '-march=x86-64'
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/cc1plus -E -quiet -v -D_GNU_SOURCE
main.cpp -mtune=generic -march=x86-64 -O3 -fpch-preprocess -o main.ii
ignoring nonexistent directory
"/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../x86_64-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../include/c++/8.2.1
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../include/c++/8.2.1/x86_64-pc-linux-gnu
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../include/c++/8.2.1/backward
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/include
/usr/local/include
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/include-fixed
/usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O3' '-mtune=generic' '-march=x86-64'
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/cc1plus -fpreprocessed main.ii -quiet
-dumpbase main.cpp -mtune=generic -march=x86-64 -auxbase main -O3 -version -o
main.s
GNU C++14 (GCC) version 8.2.1 20180831 (x86_64-pc-linux-gnu)
compiled by GNU C version 8.2.1 20180831, GMP version 6.1.2, MPFR
version 4.0.1, MPC version 1.1.0, isl version isl-0.19-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C++14 (GCC) version 8.2.1 20180831 (x86_64-pc-linux-gnu)
compiled by GNU C version 8.2.1 20180831, GMP version 6.1.2, MPFR
version 4.0.1, MPC version 1.1.0, isl version isl-0.19-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: a03a3250bc7a24a525a6f08bf70a1ad6
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O3' '-mtune=generic' '-march=x86-64'
as -v --64 -o main.o main.s
GNU assembler version 2.31.1 (x86_64-pc-linux-gnu) using BFD version (GNU
Binutils) 2.31.1
COMPILER_PATH=/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/:/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/:/usr/lib/gcc/x86_64-pc-linux-gnu/:/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/:/usr/lib/gcc/x86_64-pc-linux-gnu/
LIBRARY_PATH=/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/:/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/:/lib/../lib/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O3' '-mtune=generic' '-march=x86-64'
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/collect2 -plugin
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/liblto_plugin.so
-plugin-opt=/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/lto-wrapper
-plugin-opt=-fresolution=main.res -plugin-opt=-pass-through=-lgcc
-plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lc
-plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s --build-id
--eh-frame-hdr --hash-style=gnu -m elf_x86_64 -dynamic-linker
/lib64/ld-linux-x86-64.so.2 -pie
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/Scrt1.o
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/crti.o
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/crtbeginS.o
-L/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1
-L/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib -L/lib/../lib
-L/usr/lib/../lib -L/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../.. main.o
-lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s
--no-as-needed /usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/crtendS.o
/usr/lib/gcc/x86_64-pc-linux-gnu/8.2.1/../../../../lib/crtn.o
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O3' '-mtune=generic' '-march=x86-64'
>From gcc-bugs-return-619499-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 11:10:00 2018
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From: "dominiq at lps dot ens.fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/87782] [9 Regression] runtime error: load of value 1818451807, which is not a valid value for type 'expr_t'
Date: Mon, 29 Oct 2018 11:09:00 -0000
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-29
Ever confirmed|0 |1
--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
I see that at r265374.
>From gcc-bugs-return-619500-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 11:39:58 2018
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/87790] [9 Regression] ICE in vect_get_vec_def_for_operand_1, at tree-vect-stmts.c:1475
Date: Mon, 29 Oct 2018 11:39:00 -0000
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--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
The same can be seen on 526.blender_r with: -Ofast -g -flto=8 -march=znver1
>From gcc-bugs-return-619501-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 11:46:55 2018
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/87785] [9 Regression] ICE in dr_misalignment, at tree-vectorizer.h:1245 on 454.calculix with -Ofast and -flto
Date: Mon, 29 Oct 2018 11:46:00 -0000
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
With the right set of caching/failing events we miss loads for
slp_instance->loads. I have a patch gathering loads after the fact which fixes
the issue but I don't have a nice testcase.
>From gcc-bugs-return-619502-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 11:50:16 2018
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Subject: [Bug c++/87750] [8/9 Regression] Failed compilation / parsing of template member call after 'using' declaration
Date: Mon, 29 Oct 2018 11:50:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
CC| |nathan at gcc dot gnu.org
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
We still insist on testcases being attached here regardless as stated at
https://gcc.gnu.org/bugs/ (which you were asked to read) so thanks for
attaching it.
This started to be rejected with r252005
Kill CLASSTYPE_SORTED_FIELDS.
* cp-tree.h (struct lang_type): Lose sorted_fields member.
(CLASSTYPE_SORTED_FIELDS): Delete.
* name-lookup.h (set_class_bindings): Add EXTRA arg.
* name-lookup.c (fields_linear_search): New, broken out of ...
(lookup_field_1): ... here. Delete remainder of function.
(get_class_binding_direct): Reimplement without sorted_fields.
(get_class_binding): Rename TYPE arg to KLASS, for consistency.
(get_method_slot): Call set_class_binding when creating method_vec
on complete type.
(method_name_cmp): Order identically named slots.
(sorted_fields_type_new): Delete.
(field_vc_append_class_fields): Rename to ...
(method_vec_append_class_fields): ... here. Adjust.
(field_vec_append_enum_values): Renme to ...
(method_vec_append_enum_values): ... here. Adjust.
(method_vec_dedup): New.
(set_class_bindings): Reimplement.
(insert_late_enum_def_bindings): Reimplement.
>From gcc-bugs-return-619504-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 11:52:24 2018
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Subject: [Bug c++/87783] `class A<int>;` is incorrectly accepted at namespace or class scope
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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Last reconfirmed| |2018-10-29
Ever confirmed|0 |1
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Subject: [Bug c++/87781] template disambiguator not after `::`, `.` or `->` is incorrectly accepted in an elaborated-type-specifier
Date: Mon, 29 Oct 2018 11:52:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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>From gcc-bugs-return-619505-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 11:54:46 2018
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Subject: [Bug libstdc++/87784] A bug in tr2::dynamic_bitset::find_first
Date: Mon, 29 Oct 2018 11:54:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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>From gcc-bugs-return-619506-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 11:54:48 2018
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Subject: [Bug tree-optimization/87790] [9 Regression] ICE in vect_get_vec_def_for_operand_1, at tree-vect-stmts.c:1475
Date: Mon, 29 Oct 2018 11:54:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.
>From gcc-bugs-return-619507-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 12:09:35 2018
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Subject: [Bug testsuite/86158] [9 regression] gcc.c-torture/unsorted/dump-noaddr.c.*i.lto-stream-out fails starting with 261546
Date: Mon, 29 Oct 2018 12:09:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #13 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-619508-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 12:12:24 2018
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Subject: [Bug libstdc++/87784] A bug in tr2::dynamic_bitset::find_first
Date: Mon, 29 Oct 2018 12:12:00 -0000
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--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Looks like this patch fixes it:
--- a/libstdc++-v3/include/tr2/dynamic_bitset
+++ b/libstdc++-v3/include/tr2/dynamic_bitset
@@ -729,8 +729,7 @@ namespace tr2
{
if (size_t __offset = this->size() % bits_per_block == 0)
this->_M_do_append_block(block_type(0), this->_M_Nb);
- ++this->_M_Nb;
- this->_M_unchecked_set(this->_M_Nb, __bit);
+ this->_M_unchecked_set(this->_M_Nb++, __bit);
}
/**
>From gcc-bugs-return-619509-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 12:56:35 2018
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Subject: [Bug target/87762] [9 Regression] extract_constrain_insn, at recog.c:2206 on s390x
Date: Mon, 29 Oct 2018 12:56:00 -0000
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Ilya Leoshkevich <iii at linux dot ibm.com> changed:
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CC| |iii at linux dot ibm.com
--- Comment #2 from Ilya Leoshkevich <iii at linux dot ibm.com> ---
This must have slipped through, because I tested the movdi patch on top of the
outdated trunk (r264877).
Candidate fix: https://gcc.gnu.org/ml/gcc-patches/2018-10/msg01793.html
>From gcc-bugs-return-619510-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 13:32:10 2018
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Subject: [Bug tree-optimization/87785] [9 Regression] ICE in dr_misalignment, at tree-vectorizer.h:1245 on 454.calculix with -Ofast and -flto
Date: Mon, 29 Oct 2018 13:32:00 -0000
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--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Oct 29 13:31:28 2018
New Revision: 265588
URL: https://gcc.gnu.org/viewcvs?rev=265588&root=gcc&view=rev
Log:
2018-10-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/87785
* tree-vect-slp.c (vect_build_slp_tree_2): Remove loads argument
and processing.
(vect_build_slp_tree): Likewise.
(vect_gather_slp_loads): New function.
(vect_analyze_slp_instance): Gather loads separately from the
SLP tree build.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-vect-slp.c
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Subject: [Bug middle-end/26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95)
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Bug 26163 depends on bug 87785, which changed state.
Bug 87785 Summary: [9 Regression] ICE in dr_misalignment, at tree-vectorizer.h:1245 on 454.calculix with -Ofast and -flto
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87785
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----------------------------------------------------------------------------
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Subject: [Bug tree-optimization/87785] [9 Regression] ICE in dr_misalignment, at tree-vectorizer.h:1245 on 454.calculix with -Ofast and -flto
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
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From: "fwmechanic at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug lto/87792] New: lto1.exe: internal compiler error: in get_constructor, at varpool.c:311
Date: Mon, 29 Oct 2018 13:42:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87792
Bug ID: 87792
Summary: lto1.exe: internal compiler error: in get_constructor,
at varpool.c:311
Product: gcc
Version: 8.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: fwmechanic at gmail dot com
CC: marxin at gcc dot gnu.org
Target Milestone: ---
Created attachment 44919
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44919&action=edit
contains minimized reproduction of error, all files
GCC "distro" I'm using is mingw-16.0-without-git.exe from
https://nuwen.net/mingw.html
Result:
lto1.exe: internal compiler error: in get_constructor, at varpool.c:311
libbacktrace could not find executable to open
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
lto-wrapper.exe: fatal error: g++ returned 1 exit status
compilation terminated.
[Leaving LTRANS bugexe.exe.ltrans0.o]
c:/users/kevin/appdata/local/programs/mingw/64/mingw/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
error: lto-wrapper failed
collect2.exe: error: ld returned 1 exit status
Because this is associated with -flto (apparently takes 2 g++ steps: compile,
link, to reproduce) I have included all further info in attached zip:
Archive: lto1_internal_error_get_constructor_varpool.zip
Length Date Time Name
--------- ---------- ----- ----
26638 2018-10-29 06:28 err
935 2018-10-29 06:28 out
38792 2018-10-29 06:28 bugexe_exe.map
1608 2018-10-29 06:28 bugexe.exe.ltrans0.s
22 2018-10-29 06:28 bugexe.exe.ltrans.out
17288 2018-10-29 06:28 bugexe.exe.ltrans0.o
599 2018-10-29 06:28 -Bdynamic.res
14970 2018-10-29 06:28 bugsrc.o
34947 2018-10-29 06:28 bugsrc.s
136444 2018-10-29 06:28 bugsrc.ii
--------- -------
272243 10 files
File out is stdout, File err is stderr, respectively, from make.
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Subject: [Bug lto/87792] lto1.exe: internal compiler error: in get_constructor, at varpool.c:311
Date: Mon, 29 Oct 2018 13:55:00 -0000
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--- Comment #1 from Kevin Goodwin <fwmechanic at gmail dot com> ---
Created attachment 44920
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44920&action=edit
diff that fixes the problem: bugexe builds and runs successfully
>From gcc-bugs-return-619515-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 13:57:58 2018
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/87663] using / typedef on recursive template leads to long compile time
Date: Mon, 29 Oct 2018 13:57:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think the "variant" type set_underlying_type builds doesn't have to be in the
variant type list. The only thing that is probably needed is that it has
TYPE_CANONICAL (tt) = TYPE_CANONICAL (TREE_TYPE (x));
Other than that this whole dance of set_underlying_type & friends should
probably be revisited in the light of early debug info generation (add a debug
hook to emit DIEs in whatever way this is supposed to happen through this
mechanism?).
That is, if the FE knows an object is of a type with name X then say so rather
than requiring this type copy that is just used to refer to the typedef. That
is, it looks like a quite awkward and expensive way to communicate this to
dwarf2out.
>From gcc-bugs-return-619516-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 13:58:12 2018
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug lto/87792] lto1.exe: internal compiler error: in get_constructor, at varpool.c:311
Date: Mon, 29 Oct 2018 13:58:00 -0000
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--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Looks the problematic line is:
gcc_assert (DECL_INITIAL (decl) != error_mark_node);
so yes, it's somehow connected to __PRETTY_FUNCTION__ initialization.
Unfortunately I won't be able to help you as I can't reproduce that on Linux. I
don't have any access to mingw machine.
>From gcc-bugs-return-619517-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 13:59:43 2018
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From: "romain.geissler at amadeus dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/87780] [9 regression] ICE error: unrecognizable insn
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--- Comment #5 from Romain Geissler <romain.geissler at amadeus dot com> ---
Hi,
Trying with today's trunk with this patch included, my clang PGO+LTO bootstrap
goes further, but then the generated clang fails to compile itself. Just
putting here the clang error for reference:
fatal error: error in backend: Cannot select: 0x20c13f8: ch = fp_to_fp16
0x201f1d8, 0x20bccd8, FrameIndex:i64<0>
0x20bccd8: f80,ch = CopyFromReg 0x201f1d8, Register:f80 %0
0x20bcc08: f80 = Register %0
0x20c1bb0: i64 = FrameIndex<0>
In function: __divtc3
clang-7: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
The only thing that I changed recently is binutils/gcc/glibc, not the clang
sources. So there might still have some code gen issue left in gcc trunk (which
I don't know how to investigate).
Cheers,
Romain
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Subject: [Bug target/87627] GCC generates rube-goldberg machine for trivial tail call on 32-bit x86
Date: Mon, 29 Oct 2018 14:13:00 -0000
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--- Comment #6 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
FWIW the following CSE enhancement cleans this up, but I'm unhappy with this
patch because it's too narrowly targeted; in particular, won't clean up
void g(int a, int *b, int c);
void f(int a, int *b, int c)
{
if (a) *b = c;
g(a, b, c);
}
Had to special-case for PARM_DECL because, in general, automatic variables that
are not address-taken on GIMPLE can become addressable on RTL when ABI requires
passing a large argument by reference.
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -2232,6 +2232,15 @@ hash_rtx_string (const char *ps)
return hash;
}
+static bool
+mem_escapes_p (const_rtx x)
+{
+ tree decl = MEM_EXPR (x);
+ if (!decl || TREE_CODE (decl) != PARM_DECL)
+ return true;
+ return may_be_aliased (decl);
+}
+
/* Same as hash_rtx, but call CB on each rtx if it is not NULL.
When the callback returns true, we continue with the new rtx. */
@@ -2421,7 +2430,8 @@ hash_rtx_cb (const_rtx x, machine_mode mode,
return 0;
}
if (hash_arg_in_memory_p && !MEM_READONLY_P (x))
- *hash_arg_in_memory_p = 1;
+ if (*hash_arg_in_memory_p != 1)
+ *hash_arg_in_memory_p = mem_escapes_p (x) ? 1 : 2;
/* Now that we have already found this special case,
might as well speed it up as much as possible. */
@@ -6127,7 +6137,7 @@ invalidate_memory (void)
for (p = table[i]; p; p = next)
{
next = p->next_same_hash;
- if (p->in_memory)
+ if (p->in_memory == 1)
remove_from_table (p, i);
}
}
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Subject: [Bug debug/87428] "Missed" inline instances cause bogus DWARF to be emitted
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--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Oct 29 14:13:56 2018
New Revision: 265590
URL: https://gcc.gnu.org/viewcvs?rev=265590&root=gcc&view=rev
Log:
2018-10-29 Richard Biener <rguenther@suse.de>
Backport from mainline
2018-09-26 Richard Biener <rguenther@suse.de>
PR debug/87428
PR debug/87362
* tree-inline.c (expand_call_inline): When the location
of the call is UNKNOWN_LOCATION use DECL_SOURCE_LOCATION
or BUILTINS_LOCATION for the BLOCK_SOURCE_LOCATION of
the inserted BLOCK to make inlined_function_outer_scope_p
recognize it.
* dwarf2out.c (add_call_src_coords_attributes): Do not add
coords for reserved locations.
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/dwarf2out.c
branches/gcc-8-branch/gcc/tree-inline.c
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Subject: [Bug debug/87362] GCC produces with LTO debug info with which gdb is not happy about
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--- Comment #19 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Oct 29 14:13:56 2018
New Revision: 265590
URL: https://gcc.gnu.org/viewcvs?rev=265590&root=gcc&view=rev
Log:
2018-10-29 Richard Biener <rguenther@suse.de>
Backport from mainline
2018-09-26 Richard Biener <rguenther@suse.de>
PR debug/87428
PR debug/87362
* tree-inline.c (expand_call_inline): When the location
of the call is UNKNOWN_LOCATION use DECL_SOURCE_LOCATION
or BUILTINS_LOCATION for the BLOCK_SOURCE_LOCATION of
the inserted BLOCK to make inlined_function_outer_scope_p
recognize it.
* dwarf2out.c (add_call_src_coords_attributes): Do not add
coords for reserved locations.
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/dwarf2out.c
branches/gcc-8-branch/gcc/tree-inline.c
>From gcc-bugs-return-619521-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 14:18:21 2018
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From: "matz at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug demangler/87675] Stack Overflow in function next_is_type_qual() in cp-demangle.c, as demonstrated by "nm -C"
Date: Mon, 29 Oct 2018 14:18:00 -0000
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Michael Matz <matz at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |matz at gcc dot gnu.org
--- Comment #1 from Michael Matz <matz at gcc dot gnu.org> ---
One of usual fuzzer fake CVEs.
This is basically a similar "problem" like initially reported in
https://sourceware.org/bugzilla/show_bug.cgi?id=23008
where I actually analyzed it. The problem is that C++ mangled names
have a recursive structure. For demonstration purposes let's assume that the
character 'F' in a mangled name means "here come nested template arguments,
described next", then you need to recurse down to decode those nested args,
and if the next character is 'F' as well, you just recurse down again. So
a mangled "name" with a million 'F' characters in succession will need
a recursion depth of a million.
So, when you feed the demangler such a name a stack overflow is expected.
Exactly when the overflow occurs depends on how the demangler is compiled,
i.e. how much stack space is needed from one to the next recursion level
(sometimes the recursion is tail recursion, so in some compilation modes
can even be elided and so lead to non-exhaustion).
Many characters of the mangled names have this property, so there are multiple
variants of names that all lead to stack exhaustion, so the fuzzers were able
to create many different testcases:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85122 (aka bugzilla PR23008)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85452
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87335
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87636
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87675
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87681
Unfortunately they now also started to submit fake CVEs for these, like this
one (CVE-2018-18701) or CVE-2018-18700 (aka bug 87681).
If libiberty ever implements a check for this (which essentially can only be an
arbitrary limit, which is frowned upon, especially as it must be very small, as
people might have their stack limit set very low) fine, if not, also fine.
Until then feeding such names to any demangling tool leads to stack exhaustion
and hence segfault. Like any other memory exhaustion not a security bug.
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Subject: [Bug lto/87792] lto1.exe: internal compiler error: in get_constructor, at varpool.c:311
Date: Mon, 29 Oct 2018 14:27:00 -0000
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--- Comment #3 from Kevin Goodwin <fwmechanic at gmail dot com> ---
aside: the exact same source code that triggers this internal error builds w/o
error using gcc version 4.8.1:
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=c:/users/kevin/appdata/local/programs/mingw/32/mingw/bin/../libexec/gcc/i686-pc-mingw32/4.8.1/lto-wrapper.exe
Target: i686-pc-mingw32
Configured with: ../src/configure --prefix=/c/temp/gcc/dest
--with-gmp=/c/temp/gcc/gmp --with-mpfr=/c/temp/gcc/mpfr
--with-mpc=/c/temp/gcc/mpc --enable-languages=c,c++ --with-arch=i686
--with-tune=generic --disable-libstdcxx-pch --disable-nls --disable-shared
--disable-sjlj-exceptions --disable-win32-registry --enable-checking=release
--enable-lto
Thread model: win32
gcc version 4.8.1 (GCC)
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From: "dory at satx dot rr.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87771] My first 3d printer, and I messed up trying to update the .ini file. So, I'm trying to put the original software back in it, and I get this internal compiler error
Date: Mon, 29 Oct 2018 14:27:00 -0000
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Donna Ory <dory at satx dot rr.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
URL| |https://www.youtube.com/wat
| |ch?v=lAKyZd63_ns&t=559s
--- Comment #4 from Donna Ory <dory at satx dot rr.com> ---
I got the Master Tevo Flash files from here:
https://www.facebook.com/groups/2058176381100233/files/
I have the "Standard" version, so that's the only one that I kept out of the
zip file.
Since it has all the Marlin files in it, I didn't need to download a new Marlin
set up.
I got the U8glib files off of github. I downloaded the zip file, to the folder
where I have my 3D printer stuff, and the followed the directions to add it to
the library. I did not unzip it.
Since this, I even tried using the newest version U8glib 1.18.1, but it still
has the same errors.
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From: "bmeng.cn at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/87793] New: GCC reports error when compiling with "-fpic -Os -g"
Date: Mon, 29 Oct 2018 14:33:00 -0000
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Bug ID: 87793
Summary: GCC reports error when compiling with "-fpic -Os -g"
Product: gcc
Version: 8.1.0
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Created attachment 44921
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44921&action=edit
minimal test case (test.c) and the preprocessed file (test.i)
# Command line to call compiler
$ /share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/i386-linux-gcc -march=i386
-m32 -c test.c -o test.o -fpic -Os -g --save-temps -v
# Output
Using built-in specs.
COLLECT_GCC=/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/i386-linux-gcc
Target: i386-linux
Configured with: /home/arnd/git/gcc/configure --target=i386-linux
--enable-targets=all
--prefix=/home/arnd/cross/x86_64/gcc-8.1.0-nolibc/i386-linux
--enable-languages=c --without-headers --disable-bootstrap --disable-nls
--disable-threads --disable-shared --disable-libmudflap --disable-libssp
--disable-libgomp --disable-decimal-float --disable-libquadmath
--disable-libatomic --disable-libcc1 --disable-libmpx --enable-checking=release
: (reconfigured) /home/arnd/git/gcc/configure --target=i386-linux
--enable-targets=all
--prefix=/home/arnd/cross/x86_64/gcc-8.1.0-nolibc/i386-linux
--enable-languages=c --without-headers --disable-bootstrap --disable-nls
--disable-threads --disable-shared --disable-libmudflap --disable-libssp
--disable-libgomp --disable-decimal-float --disable-libquadmath
--disable-libatomic --disable-libcc1 --disable-libmpx --enable-checking=release
Thread model: single
gcc version 8.1.0 (GCC)
COLLECT_GCC_OPTIONS='-march=i386' '-m32' '-c' '-o' 'test.o' '-fpic' '-Os' '-g'
'-save-temps' '-v'
/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../libexec/gcc/i386-linux/8.1.0/cc1
-E -quiet -v -iprefix
/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../lib/gcc/i386-linux/8.1.0/
test.c -march=i386 -m32 -fpic -g -fworking-directory -Os -fpch-preprocess -o
test.i
ignoring nonexistent directory
"/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../lib/gcc/i386-linux/8.1.0/../../../../i386-linux/sys-include"
ignoring nonexistent directory
"/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../lib/gcc/i386-linux/8.1.0/../../../../i386-linux/include"
ignoring duplicate directory
"/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../lib/gcc/../../lib/gcc/i386-linux/8.1.0/include"
ignoring duplicate directory
"/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../lib/gcc/../../lib/gcc/i386-linux/8.1.0/include-fixed"
ignoring nonexistent directory
"/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../lib/gcc/../../lib/gcc/i386-linux/8.1.0/../../../../i386-linux/sys-include"
ignoring nonexistent directory
"/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../lib/gcc/../../lib/gcc/i386-linux/8.1.0/../../../../i386-linux/include"
#include "..." search starts here:
#include <...> search starts here:
/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../lib/gcc/i386-linux/8.1.0/include
/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../lib/gcc/i386-linux/8.1.0/include-fixed
End of search list.
COLLECT_GCC_OPTIONS='-march=i386' '-m32' '-c' '-o' 'test.o' '-fpic' '-Os' '-g'
'-save-temps' '-v'
/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../libexec/gcc/i386-linux/8.1.0/cc1
-fpreprocessed test.i -quiet -dumpbase test.c -march=i386 -m32 -auxbase-strip
test.o -g -Os -version -fpic -o test.s
GNU C17 (GCC) version 8.1.0 (i386-linux)
compiled by GNU C version 5.4.1 20170519, GMP version 6.1.0, MPFR
version 3.1.4, MPC version 1.0.3, isl version isl-0.18-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C17 (GCC) version 8.1.0 (i386-linux)
compiled by GNU C version 5.4.1 20170519, GMP version 6.1.0, MPFR
version 3.1.4, MPC version 1.0.3, isl version isl-0.18-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 5b6be85f431a859ca20ca7e588057ee0
COLLECT_GCC_OPTIONS='-march=i386' '-m32' '-c' '-o' 'test.o' '-fpic' '-Os' '-g'
'-save-temps' '-v'
/share/toolchains/gcc-8.1.0-nolibc/i386-linux/bin/../lib/gcc/i386-linux/8.1.0/../../../../i386-linux/bin/as
-v --32 -o test.o test.s
GNU assembler version 2.30 (i386-linux) using BFD version (GNU Binutils) 2.30
test.s: Assembler messages:
test.s:715: Error: junk at end of line, first unrecognized character is `@'
test.s:760: Error: junk at end of line, first unrecognized character is `@'
test.s:715: Error: can't resolve `end.1561' {.u_boot_list_2_fit_loadable_3
section} - `start.1558' {.u_boot_list_2_fit_loadable_1 section}
test.s:760: Error: can't resolve `end.1561' {.u_boot_list_2_fit_loadable_3
section} - `start.1558' {.u_boot_list_2_fit_loadable_1 section}
# Workaround
Removing -fpic or -Os or -g will make the compilation succeed.
GCC 7.3.0 does not have this issue with the same compiler options. Looks a
regression issue introduced in GCC 8.1.0 (?)
>From gcc-bugs-return-619525-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 14:38:16 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87771] My first 3d printer, and I messed up trying to update the .ini file. So, I'm trying to put the original software back in it, and I get this internal compiler error
Date: Mon, 29 Oct 2018 14:38:00 -0000
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--- Comment #5 from Donna Ory <dory at satx dot rr.com> ---
Also, my "SanityCheck.h" is off the charts with all kinds of stuff that just
gives the the "Deer in the headlights" look!! lol!!
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Subject: [Bug tree-optimization/87790] [9 Regression] ICE in vect_get_vec_def_for_operand_1, at tree-vect-stmts.c:1475
Date: Mon, 29 Oct 2018 14:58:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87790
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Oct 29 14:57:52 2018
New Revision: 265593
URL: https://gcc.gnu.org/viewcvs?rev=265593&root=gcc&view=rev
Log:
2018-10-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/87790
* tree-vect-slp.c (vect_mark_slp_stmts): Simplify.
(vect_make_slp_decision): Adjust.
(vect_slp_analyze_bb_1): Likewise.
(vect_detect_hybrid_slp_stmts): Properly union SLP type over
edges.
* gcc.dg/pr87790.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/pr87790.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-slp.c
>From gcc-bugs-return-619527-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 15:03:09 2018
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From: "egallager at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87771] My first 3d printer, and I messed up trying to update the .ini file. So, I'm trying to put the original software back in it, and I get this internal compiler error
Date: Mon, 29 Oct 2018 15:03:00 -0000
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--- Comment #6 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Donna Ory from comment #4)
> I got the Master Tevo Flash files from here:
>
> https://www.facebook.com/groups/2058176381100233/files/
That's a closed group.
>
> I have the "Standard" version, so that's the only one that I kept out of the
> zip file.
>
> Since it has all the Marlin files in it, I didn't need to download a new
> Marlin set up.
>
> I got the U8glib files off of github.
This one? https://github.com/olikraus/u8glib
> I downloaded the zip file, to the folder where I have my 3D printer stuff,
> and the followed the directions to add it to the library. I did not unzip it.
>
> Since this, I even tried using the newest version U8glib 1.18.1, but it
> still has the same errors.
>From gcc-bugs-return-619528-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 15:26:45 2018
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Subject: [Bug tree-optimization/87790] [9 Regression] ICE in vect_get_vec_def_for_operand_1, at tree-vect-stmts.c:1475
Date: Mon, 29 Oct 2018 15:26:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-619529-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 15:36:46 2018
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Subject: [Bug middle-end/87041] [8/9 Regression] GCC 8 regression: -Wformat "reading through null pointer" on unreachable code
Date: Mon, 29 Oct 2018 15:36:00 -0000
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org
--- Comment #7 from Martin Sebor <msebor at gcc dot gnu.org> ---
Testing a patch.
>From gcc-bugs-return-619530-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 15:43:45 2018
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Subject: [Bug tree-optimization/87785] [9 Regression] ICE in dr_misalignment, at tree-vectorizer.h:1245 on 454.calculix with -Ofast and -flto
Date: Mon, 29 Oct 2018 15:43:00 -0000
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--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Oct 29 15:43:08 2018
New Revision: 265596
URL: https://gcc.gnu.org/viewcvs?rev=265596&root=gcc&view=rev
Log:
2018-10-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/87785
* tree-vect-slp.c (vect_gather_slp_loads): Only gather
internal defs.
* gcc.dg/torture/20181029-1.c: New testcase.
* gcc.dg/torture/20181029-2.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/torture/20181029-1.c
trunk/gcc/testsuite/gcc.dg/torture/20181029-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-slp.c
>From gcc-bugs-return-619531-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 16:38:49 2018
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From: "joseph at codesourcery dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/71613] Useful warnings silenced when macros from system headers are used
Date: Mon, 29 Oct 2018 16:38:00 -0000
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--- Comment #9 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
On Mon, 29 Oct 2018, egallager at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71613
>
> --- Comment #8 from Eric Gallager <egallager at gcc dot gnu.org> ---
> (In reply to joseph@codesourcery.com from comment #6)
> > Rather than piecemeal fixes with no evidence of completeness, I think we
> > should disable the smarts around system header macro locations determining
> > whether diagnostics appear (i.e., the system-header tests for disabling
> > diagnostics should all use the expansion location), until we have a proper
> > design for avoiding such issues and have systematically reviewed all
> > diagnostics for conforming to such a design (if the design needs each
> > diagnostic function call to be reviewed).
>
> Coming up with a proper design might never happen though. I'd rather just have
> the piecemeal fixes in the meantime.
Any such piecemeal fixes should I think be starting from a basis where the
warnings appear even if sometimes the real issue is in the header, and
then are selectively disabled, rather than from a basis of selectively
trying to enable warnings that are wrongly disabled because a system
header macro is involved.
>From gcc-bugs-return-619532-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 16:46:47 2018
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From: "pkoning at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/87794] New: Excessive alignment permitted for functions and labels
Date: Mon, 29 Oct 2018 16:46:00 -0000
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Bug ID: 87794
Summary: Excessive alignment permitted for functions and labels
Product: gcc
Version: 9.0
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Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
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Created attachment 44922
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44922&action=edit
variable and function alignment test case
Variable alignment is checked against MAX_OFILE_ALIGNMENT but function and
label (-falign-label=n) alignment is not. This causes requests to the target
code to generate alignment directives that the output format doesn't support,
causing ICE at least in some targets.
The attached testalign.c gets an error (on i386) for variable "ag", and on
pdp11 also for variable "a4" (since max alignment on pdp11 is 2 bytes). But
the corresponding function alignments do not generate error messages.
File testalign2.c with -falign-labels=n also passes the requested alignment to
the back end without checking it against MAX_OFILE_ALIGNMENT.
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Subject: [Bug c/87795] Excessive alignment permitted for functions and labels
Date: Mon, 29 Oct 2018 16:47:00 -0000
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--- Comment #1 from pkoning at gcc dot gnu.org ---
Created attachment 44923
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variable and function alignment test case
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Subject: [Bug c/87795] New: Excessive alignment permitted for functions and labels
Date: Mon, 29 Oct 2018 16:47:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87795
Bug ID: 87795
Summary: Excessive alignment permitted for functions and labels
Product: gcc
Version: 9.0
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Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
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Variable alignment is checked against MAX_OFILE_ALIGNMENT but function and
label (-falign-label=n) alignment is not. This causes requests to the target
code to generate alignment directives that the output format doesn't support,
causing ICE at least in some targets.
The attached testalign.c gets an error (on i386) for variable "ag", and on
pdp11 also for variable "a4" (since max alignment on pdp11 is 2 bytes). But
the corresponding function alignments do not generate error messages.
File testalign2.c with -falign-labels=n also passes the requested alignment to
the back end without checking it against MAX_OFILE_ALIGNMENT.
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--- Comment #2 from pkoning at gcc dot gnu.org ---
Created attachment 44924
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44924&action=edit
label alignment test case
>From gcc-bugs-return-619536-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:06:56 2018
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Subject: [Bug rtl-optimization/87780] [9 regression] ICE error: unrecognizable insn
Date: Mon, 29 Oct 2018 17:06:00 -0000
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--- Comment #6 from Segher Boessenkool <segher at gcc dot gnu.org> ---
That sounds like a clang problem; without more information, anyway.
>From gcc-bugs-return-619539-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:19:41 2018
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Subject: [Bug c/87794] Excessive alignment permitted for functions and labels
Date: Mon, 29 Oct 2018 17:19:00 -0000
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Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> ---
dup
*** This bug has been marked as a duplicate of bug 87795 ***
>From gcc-bugs-return-619537-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:19:14 2018
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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
Date: Mon, 29 Oct 2018 17:19:00 -0000
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Iain Sandoe <iains at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-29
Ever confirmed|0 |1
--- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> ---
maybe something like:
diff --git a/gcc/d/dmd/globals.h b/gcc/d/dmd/globals.h
index 63caeb7b6b..1279ac394e 100644
--- a/gcc/d/dmd/globals.h
+++ b/gcc/d/dmd/globals.h
@@ -237,19 +237,14 @@ extern Global global;
// Because int64_t and friends may be any integral type of the
// correct size, we have to explicitly ask for the correct
// integer type to get the correct mangling with ddmd
-#if __LP64__
+
// Be careful not to care about sign when using dinteger_t
// use this instead of integer_t to
// avoid conflicts with system #include's
-typedef unsigned long dinteger_t;
+typedef __UINT64_TYPE__ dinteger_t;
// Signed and unsigned variants
-typedef long sinteger_t;
-typedef unsigned long uinteger_t;
-#else
-typedef unsigned long long dinteger_t;
-typedef long long sinteger_t;
-typedef unsigned long long uinteger_t;
-#endif
+typedef __INT64_TYPE__ sinteger_t;
+typedef __UINT64_TYPE__ uinteger_t;
typedef int8_t d_int8;
typedef uint8_t d_uns8;
>From gcc-bugs-return-619538-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:19:41 2018
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Subject: [Bug c/87795] Excessive alignment permitted for functions and labels
Date: Mon, 29 Oct 2018 17:19:00 -0000
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--- Comment #3 from Andreas Schwab <schwab@linux-m68k.org> ---
*** Bug 87794 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-619540-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:33:10 2018
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Subject: [Bug fortran/85896] ICE in gfc_convert_constant(): Unexpected type
Date: Mon, 29 Oct 2018 17:33:00 -0000
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--- Comment #4 from G. Steinmetz <gscfq@t-online.de> ---
(In reply to Thomas Koenig from comment #3)
> What is the expected output? Does this declare a new variable "min"
> or "max", or should the result simply be 'c' (or 'b')?
As it makes not much sense (IMO) to "specialise" a generic intrinsic via
user provided declaration, it looks more like a type conflict / error.
But following example is accepted, character is not matching intrinsic sin :
$ cat z4.f90
program p
character :: sin
print *, sin(1.0)
end
$ gfortran-9-20181028 -Wall -Wextra -fcheck=all z4.f90
$ a.out
0.841470957
On the other hand :
$ cat z5.f90
program p
character :: sin = 'c'
print *, sin(1.0)
end
$ gfortran-9-20181028 z5.f90
z5.f90:2:19:
2 | character :: sin = 'c'
| 1
Error: Function 'sin' at (1) cannot have an initializer
z5.f90:2:19:
2 | character :: sin = 'c'
| 1
Error: 'sin' at (1) is not a VALUE
$ cat z5b.f90
program p
character :: sin
print *, sin(1.0)
sin = 'c'
print *, sin
end
$ gfortran-9-20181028 z5b.f90
z5b.f90:4:6:
4 | sin = 'c'
| 1
Error: 'sin' at (1) is not a variable
z5b.f90:5:15:
5 | print *, sin
| 1
Error: Function 'sin' requires an argument list at (1)
>From gcc-bugs-return-619541-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:34:27 2018
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Subject: [Bug fortran/85896] ICE in gfc_convert_constant(): Unexpected type
Date: Mon, 29 Oct 2018 17:34:00 -0000
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--- Comment #5 from G. Steinmetz <gscfq@t-online.de> ---
Looking again at intrinsic "max" and a variant of z1/z2 :
$ cat z6.f90
program p
character :: max
print *, max(1.0, 2.0)
end
$ gfortran-9-20181028 z6.f90
f951: internal compiler error: gfc_convert_constant(): Unexpected type
$ cat z7.f90
program p
character :: max = 'c'
print *, max(1.0, 2.0)
end
$ gfortran-9-20181028 z7.f90
z7.f90:2:19:
2 | character :: max = 'c'
| 1
Error: Function 'max' at (1) cannot have an initializer
z7.f90:2:19:
2 | character :: max = 'c'
| 1
Error: 'max' at (1) is not a VALUE
$ cat z7b.f90
program p
character :: max
print *, max(1.0, 2.0)
max = 'c'
print *, max
end
$ gfortran-9-20181028 z7b.f90
z7b.f90:4:6:
4 | max = 'c'
| 1
Error: 'max' at (1) is not a variable
z7b.f90:5:15:
5 | print *, max
| 1
Error: Function 'max' requires an argument list at (1)
---
With a user-defined type instead of an intrinsic type this happens :
$ cat zm1.f90
program p
type t
character :: c = 'c'
end type
type(t) :: max
print *, max(1, 2)
end
$ gfortran-9-20181028 zm1.f90
f951: internal compiler error: gfc_convert_constant(): Unexpected type
$ cat zm2.f90
program p
type t
character :: c = 'c'
end type
type(t) :: max(3)
print *, max(1, 2)
end
$ gfortran-9-20181028 zm2.f90
zm2.f90:6:15:
6 | print *, max(1, 2)
| 1
Error: Rank mismatch in array reference at (1) (2/1)
$ cat zm3.f90
program p
type t
character :: c = 'c'
end type
type(t) :: max(3, 3)
print *, max(1, 2)
end
$ gfortran-9-20181028 -Wall -Wextra -fcheck=all zm3.f90
$ a.out
c
BTW, thanks for working on this issue.
>From gcc-bugs-return-619542-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:36:22 2018
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Subject: [Bug fortran/87796] New: ICE in gfc_conv_string_parameter, at fortran/trans-expr.c:8926
Date: Mon, 29 Oct 2018 17:36:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87796
Bug ID: 87796
Summary: ICE in gfc_conv_string_parameter, at
fortran/trans-expr.c:8926
Product: gcc
Version: 9.0
Status: UNCONFIRMED
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Might be related to pr85896.
$ cat z1.f90
program p
character :: num_images
print *, num_images()
end
$ cat z2.f90
program p
character :: num_images
print *, num_images(1)
end
$ gfortran-9-20181028 -c z2.f90 -fcoarray=single
$
$ gfortran-9-20181028 -c z2.f90 -fcoarray=lib
z2.f90:3:0:
3 | print *, num_images(1)
|
internal compiler error: in gfc_conv_string_parameter, at
fortran/trans-expr.c:8926
0x6ebba0 gfc_conv_string_parameter(gfc_se*)
../../gcc/fortran/trans-expr.c:8926
0x7198e7 gfc_trans_transfer(gfc_code*)
../../gcc/fortran/trans-io.c:2584
0x6bea57 trans_code
../../gcc/fortran/trans.c:2038
0x7173de build_dt
../../gcc/fortran/trans-io.c:2026
0x6bea37 trans_code
../../gcc/fortran/trans.c:2010
0x6e6054 gfc_generate_function_code(gfc_namespace*)
../../gcc/fortran/trans-decl.c:6505
0x673696 translate_all_program_units
../../gcc/fortran/parse.c:6125
0x673696 gfc_parse_file()
../../gcc/fortran/parse.c:6328
0x6bb28f gfc_be_parse_file
../../gcc/fortran/f95-lang.c:204
>From gcc-bugs-return-619543-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:37:18 2018
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Subject: [Bug fortran/87796] ICE in gfc_conv_string_parameter, at fortran/trans-expr.c:8926
Date: Mon, 29 Oct 2018 17:37:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87796
--- Comment #1 from G. Steinmetz <gscfq@t-online.de> ---
$ cat z3.f90
program p
character :: num_images = 'c'
print *, num_images(1)
end
$ gfortran-9-20181028 -c z3.f90 -fcoarray=single
z3.f90:2:26:
2 | character :: num_images = 'c'
| 1
Error: Function 'num_images' at (1) cannot have an initializer
z3.f90:2:26:
2 | character :: num_images = 'c'
| 1
Error: 'num_images' at (1) is not a VALUE
$ cat z4.f90
program p
character :: num_images
print *, num_images()
num_images = 'c'
print *, num_images
end
$ gfortran-9-20181028 -c z4.f90 -fcoarray=single
z4.f90:4:13:
4 | num_images = 'c'
| 1
Error: 'num_images' at (1) is not a variable
z4.f90:5:22:
5 | print *, num_images
| 1
Error: Function 'num_images' requires an argument list at (1)
>From gcc-bugs-return-619544-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:46:36 2018
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Subject: [Bug fortran/87797] New: Enhancement: Warning for potential name clash of variables/intrinsics...
Date: Mon, 29 Oct 2018 17:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87797
Bug ID: 87797
Summary: Enhancement: Warning for potential name clash of
variables/intrinsics...
Product: gcc
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Regarding pr85896 and other issues, an additional Warning -Wxyz=key
(names "xyz" and "key" tbd) might be helpful :
Variant 1 (argument key1) :
Warn if a _user_defined_ parameter/variable/array/type
is named like an _intrinsic_ function/subroutine/type/module
from a dedicated official standard (e.g. -std=f2008).
See e.g. table of intrinsics in F2008 13.5, 13.6.
Variant 2 (argument key2) :
Warn if a _user_defined_ function/subroutine/interface/module
is named like an _intrinsic_ function/subroutine/type/module
from a dedicated official standard (e.g. -std=f2008).
Knowing that gfortran can _not_ do the job of a static analyzer,
specifically for global analysis, it could mark "suspicious" code
this way. Just an idea.
Additionally :
Variant 3 (argument key3) :
Warn if a _user_defined_ parameter/variable/array/type
is named like an official statement name (like "stop").
Variant 4 (argument key4) :
Warn if a _user_defined_ function/subroutine/interface/module
is named like an official statement name.
Variant 5 (argument key5) :
Warn if a _user_defined_ parameter/variable/array/type
is named like an _user_defined_ function/subroutine/type/module,
regarding sources in scope/progress.
Example :
$ cat z1.f90
module program
integer :: function, sin, trim
type public
character :: max, else(1)
end type
end
program end
use program, len => trim
real :: select, read(2)
contains
function module (sin)
character :: sin, stop
end
end
>From gcc-bugs-return-619545-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:47:22 2018
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Subject: [Bug c++/86567] [8/9 Regression] -Wnonnull/-Wformat/-Wrestrict affect code generation
Date: Mon, 29 Oct 2018 17:47:00 -0000
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Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org
--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> ---
(In reply to Alexander Monakov from comment #4)
> It seems a bit strange to do full-blown constexpr evaluation for warnings,
> especially if normal compilation flow wouldn't perform the same evaluation.
If the warning might depend on a constant value, we try to come up with a
constant value for it.
>From gcc-bugs-return-619546-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 17:49:21 2018
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From: "joel at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/87795] Excessive alignment permitted for functions and labels
Date: Mon, 29 Oct 2018 17:49:00 -0000
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Joel Sherrill <joel at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
CC| |joel at gcc dot gnu.org
--- Comment #4 from Joel Sherrill <joel at gcc dot gnu.org> ---
I added myself as a CC because I want to see if these become errors or
warnings. For core parts of RTEMS, I can see wanting these to be errors since
it indicates we did something in core OS code that did not achieve the desired
results. But in application code, it might not be as well considered or
necessary.
So ultimately, it's a hard decision on how to treat mistakes in alignment
requests
>From gcc-bugs-return-619547-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 18:16:34 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/59472] Many warnings "type of 'X' does not match original declaration" when linking with libstdc++ static library compiled with -flto
Date: Mon, 29 Oct 2018 18:16:00 -0000
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--- Comment #7 from Paul Scruby <paul at scruby dot com> ---
Feel free to close this ticket.
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59472
>
> --- Comment #6 from Eric Gallager <egallager at gcc dot gnu.org> ---
> (In reply to Paul Scruby from comment #5)
>> Is there a patch to fix or suppress the warnings when link-time
>> optimizing
>> to libstdc++.a ? I'm using gcc4.8.2, but I'm happy to upgrade to gcc4.9
>> if
>> this release is more likely to get fixed first?
>
> Well both those branches are closed now; could you upgrade to something
> more
> recent instead?
>
> --
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>From gcc-bugs-return-619548-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 18:39:53 2018
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Subject: [Bug middle-end/87798] New: EH lowering is creating a gimple_switch statement with type-incompatible index and case labels
Date: Mon, 29 Oct 2018 18:39:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87798
Bug ID: 87798
Summary: EH lowering is creating a gimple_switch statement with
type-incompatible index and case labels
Product: gcc
Version: tree-ssa
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Created attachment 44925
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44925&action=edit
patch to check for the error condition and trigger a bootstrap failure
This shows up during bootstrap when building the ADA compiler
configuration is x86_64-pc-linux-gnu with
--enable-languages=all,ada,go,obj-c++,jit --enable-host-shared
from https://gcc.gnu.org/ml/gcc/2018-10/msg00248.html :
I am doing some switch analysis and an triggering a failure in ADA when the
gimple_switch_index() is a signed 64 bit value and the case labels are only 32
bit integers. I would have expected that these needed to be the same
precision? I don't seem to get this failure anywhere else.
(gdb) p print_gimple_stmt (stderr, sw, 0, 0)
switch (_22) <default: <L9> [67.00%], case 1: <L6> [33.00%]>
(gdb) p gimple_switch_index (sw)
$16 = (tree_node *) 0x7fffee3593f0
(gdb) p print_generic_expr (stderr, $16, 0)
_22
(gdb) p print_generic_expr (stderr, $16->typed.type, 0)
SIGNED_64 << signed 64 bit
index
low is the value of CASE_LOW()
(gdb) p print_generic_expr (stderr, low, 0)
1
(gdb) p low->typed.type
$19 = (tree) 0x7fffefacf5e8
(gdb) p print_generic_expr (stderr, $19, 0)
integer
(gdb) p low->typed.type->type_common.precision
$22 = 32 <<< 32 bit case label
(gdb) p type->type_common.precision
$23 = 64
(gdb) p useless_type_conversion_p ($16->typed.type, $19)
$24 = false
(gdb) p useless_type_conversion_p ($19, $16->typed.type)
$25 = false
(gdb) p types_compatible_p ($19, $16->typed.type)
$26 = false
(gdb) p types_compatible_p ($16->typed.type, $19)
$27 = false
These should at least be type_compatible_p should they not?
The attached patch adds a checking assert in gimple_build_switch() which
verifies that the type of the index and the case labels are compatible.
When added, bootstrap fails here:
/gcc/range2/build/./gcc/xgcc -B/gcc/range2/build/./gcc/
-B/gcc/range2/install/x86_64-pc-linux-gnu/bin/
-B/gcc/range2/install/x86_64-pc-linux-gnu/lib/ -isystem
/gcc/range2/install/x86_64-pc-linux-gnu/include -isystem
/gcc/range2/install/x86_64-pc-linux-gnu/sys-include -c -g -O2 -fpic -W -Wall
-gnatpg -nostdinc a-calcon.adb -o a-calcon.o -wrapper gdb,--args
Breakpoint 1, fancy_abort (file=0x26ba508 "/gcc/range2/gcc/gcc/gimple.c",
line=803,
function=0x26bb550 <gimple_build_switch(tree_node*, tree_node*,
vec<tree_node*, va_heap, vl_ptr>)::__FUNCTION__> "gimple_build_switch") at
/gcc/range2/gcc/gcc/diagnostic.c:1560
1560 internal_error ("in %s, at %s:%d", function, trim_filename (file),
line);
Missing separate debuginfos, use: dnf debuginfo-install gmp-6.1.1-1.fc25.x86_64
libgcc-6.4.1-1.fc25.x86_64 libmpc-1.0.2-5.fc24.x86_64
libstdc++-6.4.1-1.fc25.x86_64 mpfr-3.1.5-1.fc25.x86_64
(gdb) where
#0 fancy_abort (file=0x26ba508 "/gcc/range2/gcc/gcc/gimple.c", line=803,
function=0x26bb550 <gimple_build_switch(tree_node*, tree_node*,
vec<tree_node*, va_heap, vl_ptr>)::__FUNCTION__> "gimple_build_switch") at
/gcc/range2/gcc/gcc/diagnostic.c:1560
#1 0x00000000011273e4 in gimple_build_switch (index=0x7fffef75f4c8,
default_label=<optimized out>, args=...) at /gcc/range2/gcc/gcc/gimple.c:803
#2 0x000000000167f8ce in lower_eh_dispatch (src=0x7fffef74e478,
stmt=0x7fffef747870) at /gcc/range2/gcc/gcc/tree-eh.c:3775
#3 0x000000000167fcc4 in (anonymous
namespace)::pass_lower_eh_dispatch::execute (this=0x3971d30,
fun=0x7fffef72a580) at /gcc/range2/gcc/gcc/tree-eh.c:3859
#4 0x00000000014464df in execute_one_pass (pass=0x3971d30) at
/gcc/range2/gcc/gcc/passes.c:2446
#5 0x0000000001446884 in execute_pass_list_1 (pass=0x3971d30) at
/gcc/range2/gcc/gcc/passes.c:2535
#6 0x0000000001446914 in execute_pass_list (fn=0x7fffef72a580, pass=0x3971cd0)
at /gcc/range2/gcc/gcc/passes.c:2546
#7 0x0000000000f0e3ad in cgraph_node::expand (this=0x7fffefabcc60) at
/gcc/range2/gcc/gcc/cgraphunit.c:2121
#8 0x0000000000f0ea4c in expand_all_functions () at
/gcc/range2/gcc/gcc/cgraphunit.c:2259
#9 0x0000000000f0f73d in symbol_table::compile (this=0x7fffefabd100) at
/gcc/range2/gcc/gcc/cgraphunit.c:2610
#10 0x0000000000f0fbd8 in symbol_table::finalize_compilation_unit
(this=0x7fffefabd100) at /gcc/range2/gcc/gcc/cgraphunit.c:2788
#11 0x00000000015da4cc in compile_file () at /gcc/range2/gcc/gcc/toplev.c:480
#12 0x00000000015dda0f in do_compile () at /gcc/range2/gcc/gcc/toplev.c:2170
It looks like there are labels for a switch which are subsumed for a try_catch
when lowering: (from lower_eh_dispatch::tree-eh.c)
/* Don't generate a switch if there's only a default case.
This is common in the form of try { A; } catch (...) { B; }. */
if (!labels.exists ())
{
e = single_succ_edge (src);
e->flags |= EDGE_FALLTHRU;
}
else
{
fn = builtin_decl_implicit (BUILT_IN_EH_FILTER);
x = gimple_build_call (fn, 1, build_int_cst (integer_type_node,
region_nr));
filter = create_tmp_var (TREE_TYPE (TREE_TYPE (fn)));
filter = make_ssa_name (filter, x);
gimple_call_set_lhs (x, filter);
gsi_insert_before (&gsi, x, GSI_SAME_STMT);
/* Turn the default label into a default case. */
default_label = build_case_label (NULL, NULL, default_label);
sort_case_labels (labels);
traps--->> x = gimple_build_switch (filter, default_label, labels);
The labels coming in are 32 bit, and the result of the call created here is the
64 bit index:
(gdb) p print_generic_expr (stderr, filter->typed.type, 0)
SIGNED_64$
>From gcc-bugs-return-619549-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 19:22:36 2018
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From: "rainer@emrich-ebersheim.de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug d/87799] New: failure during bootstrap, fails to build d/filename.o
Date: Mon, 29 Oct 2018 19:22:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87799
Bug ID: 87799
Summary: failure during bootstrap, fails to build d/filename.o
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: d
Assignee: unassigned at gcc dot gnu.org
Reporter: rainer@emrich-ebersheim.de
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/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/./prev-gcc/xg++
-B/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/./prev-gcc/
-B/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/bin/
-nostdinc++
-B/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/prev-x86_64-w64-mingw32/libstdc++-v3/src/.libs
-B/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/prev-x86_64-w64-mingw32/libstdc++-v3/libsupc++/.libs
-I/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/prev-x86_64-w64-mingw32/libstdc++-v3/include/x86_64-w64-mingw32
-I/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/prev-x86_64-w64-mingw32/libstdc++-v3/include
-I/opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/libstdc++-v3/libsupc++
-L/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/prev-x86_64-w64-mingw32/libstdc++-v3/src/.libs
-L/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/prev-x86_64-w64-mingw32/libstdc++-v3/libsupc++/.libs
-fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -D__USE_MINGW_ACCESS
-Wno-pedantic-ms-format -fno-checking -gtoggle -DIN_GCC -fno-exceptions
-fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
-DHAVE_CONFIG_H -I. -Id
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/../include
-I./../intl
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/../libcpp/include
-I/opt/devel/SCRATCH/tmp.I8jwTRKpzz/install/include
-I/opt/devel/SCRATCH/tmp.I8jwTRKpzz/install/include
-I/opt/devel/SCRATCH/tmp.I8jwTRKpzz/install/include
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/../libdecnumber
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/../libdecnumber/bid
-I../libdecnumber
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/../libbacktrace
-I/opt/devel/SCRATCH/tmp.I8jwTRKpzz/install/include -o d/filename.o -MT
d/filename.o -MMD -MP -MF d/.deps/filename.TPo
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d
-I../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d/dmd
-Id
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d/dmd/root/filename.c
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d/dmd/root/filename.c:
In static member function 'static int FileName::exists(const char*)':
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d/dmd/root/filename.c:563:12:
warning: comparison of integer expressions of different signedness: 'DWORD'
{aka 'long unsigned int'} and 'long int' [-Wsign-compare]
563 | if (dw == -1L)
| ~~~^~~~~~
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d/dmd/root/filename.c:
In static member function 'static bool FileName::ensurePathExists(const
char*)':
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d/dmd/root/filename.c:589:51:
error: invalid const_cast from type 'const char*' to type 'void*'
589 | { mem.xfree(const_cast<void *>(p));
| ^
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d/dmd/root/filename.c:
In static member function 'static const char* FileName::name(const char*)':
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d/dmd/root/filename.c:280:34:
warning: this statement may fall through [-Wimplicit-fallthrough=]
280 | if (e == str + 1 || e == str + len - 1)
| ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d/dmd/root/filename.c:283:13:
note: here
283 | default:
| ^~~~~~~
make[3]: ***
[../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/gcc/d/Make-lang.in:315:
d/filename.o] Error 1
>From gcc-bugs-return-619550-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 19:40:56 2018
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Subject: [Bug c++/87594] constexpr rejects-valid code with range-based for-loop
Date: Mon, 29 Oct 2018 19:40:00 -0000
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--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Mon Oct 29 19:40:18 2018
New Revision: 265600
URL: https://gcc.gnu.org/viewcvs?rev=265600&root=gcc&view=rev
Log:
PR c++/87594 - constexpr rejects-valid with range-based for.
* constexpr.c (potential_constant_expression_1): If the condition
can't be evaluated, return true.
* g++.dg/cpp1y/constexpr-loop8.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/cpp1y/constexpr-loop8.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/constexpr.c
trunk/gcc/testsuite/ChangeLog
>From gcc-bugs-return-619551-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 19:41:07 2018
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Subject: [Bug c++/87594] constexpr rejects-valid code with range-based for-loop
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Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed.
>From gcc-bugs-return-619552-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 19:47:02 2018
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Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
Date: Mon, 29 Oct 2018 19:47:00 -0000
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--- Comment #2 from Iain Sandoe <iains at gcc dot gnu.org> ---
that gets us to a fail because of an ELF-specific section directive in atomic.d
.section minfo
It looks like there's an OS_X-specific sections file there - but ISTM that the
configuration expansion of :
DRUNTIME_OS_MINFO_BRACKETING
doesn't have a Darwin version .. maybe there's code you can borrow from
elsewhere - I've not gone looking yet.
>From gcc-bugs-return-619553-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 20:07:47 2018
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Subject: [Bug tree-optimization/87800] New: [9 Regression] CPU2006 416.gamess failed to build with LTO
Date: Mon, 29 Oct 2018 20:07:00 -0000
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Bug ID: 87800
Summary: [9 Regression] CPU2006 416.gamess failed to build with
LTO
Product: gcc
Version: 9.0
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On x86-64, r265457 caused:
gfortran -O3 -funroll-loops -ffast-math -fwhole-program -flto=jobserver
-fuse-linker-plugin -DSPEC_CPU_LP64 aldeci.fppized.o algnci.fppized.o
basecp.fppized.o basext.o bashuz.o bashz2.o basn21.fppized.o basn31.o
bassto.fppized.o blas.fppized.o ccaux.o ccsdt.fppized.o chgpen.fppized.o
cisgrd.fppized.o cosmo.fppized.o cphf.fppized.o cpmchf.o cprohf.fppized.o
ddi.fppized.o delocl.fppized.o dft.fppized.o dftaux.fppized.o dftexc.fppized.o
dftfun.o dftgrd.fppized.o dftint.fppized.o dgeev.o dmulti.fppized.o
drc.fppized.o dummygetenv.fppized.o ecp.fppized.o ecpder.fppized.o
ecplib.fppized.o ecppot.o efdrvr.fppized.o efelec.o efgrd2.fppized.o
efgrda.fppized.o efgrdb.fppized.o efgrdc.fppized.o efinp.fppized.o
efinta.fppized.o efintb.fppized.o efpaul.fppized.o efpcm.fppized.o
efpcov.fppized.o eigen.fppized.o eomcc.fppized.o ffield.fppized.o
frfmt.fppized.o fsodci.fppized.o gamess.fppized.o globop.fppized.o
gradex.fppized.o grd1.fppized.o grd2a.fppized.o grd2b.o grd2c.fppized.o
guess.fppized.o gugdga.fppized.o gugdgb.fppized.o gugdm.fppized.o
gugdm2.fppized.o gugdrt.fppized.o gugem.fppized.o gugsrt.fppized.o
gvb.fppized.o hess.fppized.o hss1a.fppized.o hss1b.fppized.o hss2a.fppized.o
hss2b.fppized.o inputa.fppized.o inputb.fppized.o inputc.fppized.o
int1.fppized.o int2a.fppized.o int2b.o iolib.fppized.o lagran.fppized.o
local.fppized.o loccd.fppized.o locpol.fppized.o mccas.fppized.o mcjac.o
mcpinp.fppized.o mcpint.fppized.o mcplib.o mcqdpt.fppized.o mcqdwt.o
mcqud.fppized.o mcscf.fppized.o mctwo.fppized.o morokm.fppized.o mp2.fppized.o
mp2ddi.fppized.o mp2grd.fppized.o mpcdat.o mpcgrd.fppized.o mpcint.fppized.o
mpcmol.fppized.o mpcmsc.fppized.o mthlib.fppized.o nameio.fppized.o
nmr.fppized.o olix.o ordint.fppized.o ormas1.fppized.o parley.fppized.o
pcm.fppized.o pcmcav.o pcmcv2.fppized.o pcmder.fppized.o pcmdis.fppized.o
pcmief.fppized.o pcmpol.fppized.o pcmvch.fppized.o prpel.fppized.o
prplib.fppized.o prppop.fppized.o qeigen.fppized.o qfmm.fppized.o
qmfm.fppized.o qmmm.fppized.o qrel.fppized.o raman.fppized.o rhfuhf.fppized.o
rxncrd.fppized.o ryspol.o scflib.fppized.o scfmi.fppized.o scrf.fppized.o
sobrt.fppized.o soffac.fppized.o solib.fppized.o sozeff.fppized.o
statpt.fppized.o surf.fppized.o symorb.fppized.o symslc.fppized.o
tdhf.fppized.o trans.fppized.o trfdm2.fppized.o trnstn.fppized.o
trudge.fppized.o umpddi.fppized.o unport.fppized.o vibanl.fppized.o
vscf.fppized.o zheev.fppized.o zmatrx.fppized.o -lm -o games
...
during GIMPLE pass: vect
grd2b.f: In function 'grdper.constprop':
grd2b.f:953: internal compiler error: in vect_build_slp_tree_2, at
tree-vect-slp.c:1128
0x6a9a06 vect_build_slp_tree_2
../../src-trunk/gcc/tree-vect-slp.c:1128
0xe3306c vect_build_slp_tree
../../src-trunk/gcc/tree-vect-slp.c:1057
0xe33ffd vect_build_slp_tree_2
../../src-trunk/gcc/tree-vect-slp.c:1208
0xe3306c vect_build_slp_tree
../../src-trunk/gcc/tree-vect-slp.c:1057
0xe39578 vect_analyze_slp_instance
../../src-trunk/gcc/tree-vect-slp.c:1940
0xe3aab0 vect_analyze_slp(vec_info*, unsigned int)
../../src-trunk/gcc/tree-vect-slp.c:2139
0xe23e76 vect_analyze_loop_2
../../src-trunk/gcc/tree-vect-loop.c:1881
0xe264e1 vect_analyze_loop(loop*, _loop_vec_info*, vec_info_shared*)
../../src-trunk/gcc/tree-vect-loop.c:2268
0xe3f98f try_vectorize_loop_1
../../src-trunk/gcc/tree-vectorizer.c:873
0xe40739 vectorize_loops()
../../src-trunk/gcc/tree-vectorizer.c:1097
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
make[4]: *** [/tmp/ccA17T4q.mk:11: /tmp/gamess.EoWxwj.ltrans3.ltrans.o] Error 1
>From gcc-bugs-return-619554-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 20:11:16 2018
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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/87801] New: [9 Regression] CPU2006 454.calculix failed to build with LTO
Date: Mon, 29 Oct 2018 20:11:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 9.0
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: hjl.tools at gmail dot com
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87801
Bug ID: 87801
Summary: [9 Regression] CPU2006 454.calculix failed to build
with LTO
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: rguenther at suse dot de
Target Milestone: ---
On x86-64, r265522 caused:
gfortran -O3 -funroll-loops -ffast-math -fwhole-program -flto=jobserver
-fuse-linker-plugin -DSPEC_CPU_LP64 CalculiX.o add_pr.o add_sm_ei.o
add_sm_st.o allocation.o amplitudes.o anisotropic.o beamsections.o bounadd.o
boundaries.o buckles.o calinput.o cfluxes.o changedepterm.o cloads.o
conductivities.o controlss.o couptempdisps.o creeps.o cychards.o cycsymmods.o
dasol.o datest.o datri.o defplasticities.o defplas.o densities.o depvars.o
deuldlag.o dfluxes.o dgesv.o diamtr.o dloads.o dot.o dredu.o dsort.o dynamics.o
dynsolv.o el.o elastics.o elements.o elprints.o envtemp.o equations.o
expansions.o extrapolate.o e_c3d.o e_c3d_th.o e_c3d_rhs.o fcrit.o films.o
finpro.o forcadd.o frd.fppized.o frdclose.o frequencies.o fsub.o fsuper.o
gen3delem.o genran.o getnewline.o graph.o headings.o heattransfers.o hyperel.o
hyperelastics.o hyperfoams.o ident.o ident2.o include.o incplas.o
initialconditions.o inputerror.o isorti.o isortid.o isortidc.o isortii.o
isortiid.o label.o linel.o lintemp.o lintemp_th.o loadadd.o loadaddt.o
mafillpr.o mafillsm.o mafillsmcs.o massflowrates.o matdata_co.o matdata_he.o
matdata_tg.o materialdata.o materials.o modaldampings.o modaldynamics.o mpcs.o
nident.o nident2.o near2d.o noanalysis.o nodalthicknesses.o nodeprints.o
nodes.o noelfiles.o noelsets.o nonlinmpc.o normals.o norshell.o number.o onf.o
op.o openfile.o orientations.o orthonl.o orthotropic.o out.o parser.o
physicalconstants.o planempc.o plastics.o plcopy.o plinterpol.o plmix.o
polynom.o profil.o radflowload.o radiates.o ranewr.o rearrange.o rectcyl.o
renumber.o restartread.o restarts.o restartshort.o restartwrite.o results.o
rhs.o rigidbodies.o rigidmpc.o rootls.o rubber.o saxpb.o selcycsymmods.o
shape3tri.o shape4q.o shape4tet.o shape6tri.o shape6w.o shape8h.o shape8q.o
shape10tet.o shape15w.o shape20h.o shellsections.o skip.o solidsections.o
spcmatch.o specificheats.o statics.o steps.o stiff2mat.o stop.o str2mat.o
straightmpc.o surfaces.o temperatures.o tempload.o ties.o transformatrix.o
transforms.o ucreep.o uhardening.o umat.o umat_aniso_creep.o umat_aniso_plas.o
umat_elastic_fiber.o umat_ideal_gas.o umat_lin_iso_el.o umat_single_crystal.o
umat_tension_only.o umat_user.o umpc_mean_rot.o umpc_user.o usermaterials.o
usermpc.o viscos.o wcoef.o writebv.o writeev.o writeevcs.o writempc.o
writesummary.o cascade.o frdcyc.o insert.o mastruct.o mastructcs.o nonlingeo.o
pcgsolver.o preiter.o prespooles.o profile.o remastruct.o spooles.o strcmp1.o
strcpy1.o u_calloc.o SPOOLES/A2/src/A2_IO.o SPOOLES/A2/src/A2_basics.o
SPOOLES/A2/src/A2_init.o SPOOLES/A2/src/A2_instance.o SPOOLES/A2/src/A2_norms.o
SPOOLES/A2/src/A2_sort.o SPOOLES/A2/src/A2_util.o SPOOLES/BKL/src/BKL_basics.o
SPOOLES/BKL/src/BKL_evalfcn.o SPOOLES/BKL/src/BKL_exhSearch.o
SPOOLES/BKL/src/BKL_fidmat.o SPOOLES/BKL/src/BKL_init.o
SPOOLES/BKL/src/BKL_util.o SPOOLES/BPG/src/BPG_IO.o
SPOOLES/BPG/src/BPG_basics.o SPOOLES/BPG/src/BPG_init.o
SPOOLES/BPG/src/BPG_makeGraphs.o SPOOLES/BPG/src/BPG_pseudo.o
SPOOLES/Chv/src/Chv_IO.o SPOOLES/Chv/src/Chv_assemble.o
SPOOLES/Chv/src/Chv_basics.o SPOOLES/Chv/src/Chv_copy.o
SPOOLES/Chv/src/Chv_factor.o SPOOLES/Chv/src/Chv_findPivot.o
SPOOLES/Chv/src/Chv_init.o SPOOLES/Chv/src/Chv_instance.o
SPOOLES/Chv/src/Chv_search.o SPOOLES/Chv/src/Chv_swap.o
SPOOLES/Chv/src/Chv_update.o SPOOLES/Chv/src/Chv_util.o
SPOOLES/ChvList/src/ChvList_basics.o SPOOLES/ChvList/src/ChvList_init.o
SPOOLES/ChvList/src/ChvList_util.o SPOOLES/ChvManager/src/ChvManager_basics.o
SPOOLES/ChvManager/src/ChvManager_init.o
SPOOLES/ChvManager/src/ChvManager_util.o SPOOLES/DSTree/src/DSTree_basics.o
SPOOLES/DSTree/src/DSTree_init.o SPOOLES/DSTree/src/DSTree_instance.o
SPOOLES/DSTree/src/DSTree_stages.o SPOOLES/DSTree/src/DSTree_util.o
SPOOLES/DV/src/DV_IO.o SPOOLES/DV/src/DV_basics.o SPOOLES/DV/src/DV_init.o
SPOOLES/DV/src/DV_instance.o SPOOLES/DV/src/DV_util.o
SPOOLES/DenseMtx/src/DenseMtx_IO.o SPOOLES/DenseMtx/src/DenseMtx_basics.o
SPOOLES/DenseMtx/src/DenseMtx_init.o SPOOLES/DenseMtx/src/DenseMtx_instance.o
SPOOLES/DenseMtx/src/DenseMtx_permute.o SPOOLES/DenseMtx/src/DenseMtx_util.o
SPOOLES/Drand/src/Drand_basics.o SPOOLES/Drand/src/Drand_init.o
SPOOLES/Drand/src/Drand_util.o SPOOLES/ETree/src/ETree_IO.o
SPOOLES/ETree/src/ETree_basics.o SPOOLES/ETree/src/ETree_compress.o
SPOOLES/ETree/src/ETree_init.o SPOOLES/ETree/src/ETree_instance.o
SPOOLES/ETree/src/ETree_permute.o SPOOLES/ETree/src/ETree_transform.o
SPOOLES/ETree/src/ETree_util.o SPOOLES/FrontMtx/src/FrontMtx_IO.o
SPOOLES/FrontMtx/src/FrontMtx_basics.o SPOOLES/FrontMtx/src/FrontMtx_factor.o
SPOOLES/FrontMtx/src/FrontMtx_factorUtil.o SPOOLES/FrontMtx/src/FrontMtx_init.o
SPOOLES/FrontMtx/src/FrontMtx_instance.o
SPOOLES/FrontMtx/src/FrontMtx_loadEntries.o
SPOOLES/FrontMtx/src/FrontMtx_permute.o
SPOOLES/FrontMtx/src/FrontMtx_postProcess.o
SPOOLES/FrontMtx/src/FrontMtx_postponed.o SPOOLES/FrontMtx/src/FrontMtx_solve.o
SPOOLES/FrontMtx/src/FrontMtx_solveUtil.o SPOOLES/FrontMtx/src/FrontMtx_split.o
SPOOLES/FrontMtx/src/FrontMtx_storeFront.o
SPOOLES/FrontMtx/src/FrontMtx_update.o SPOOLES/FrontMtx/src/FrontMtx_util.o
SPOOLES/GPart/src/GPart_DDsepInfo.o SPOOLES/GPart/src/GPart_DDviaFishnet.o
SPOOLES/GPart/src/GPart_DDviaProjection.o SPOOLES/GPart/src/GPart_RBviaDDsep.o
SPOOLES/GPart/src/GPart_TwoSetViaBKL.o SPOOLES/GPart/src/GPart_basics.o
SPOOLES/GPart/src/GPart_domSegMap.o SPOOLES/GPart/src/GPart_identifyWideSep.o
SPOOLES/GPart/src/GPart_init.o SPOOLES/GPart/src/GPart_makeYCmap.o
SPOOLES/GPart/src/GPart_smoothBisector.o
SPOOLES/GPart/src/GPart_smoothBy2layers.o SPOOLES/GPart/src/GPart_smoothYSep.o
SPOOLES/GPart/src/GPart_split.o SPOOLES/GPart/src/GPart_util.o
SPOOLES/Graph/src/Graph_IO.o SPOOLES/Graph/src/Graph_basics.o
SPOOLES/Graph/src/Graph_compress.o SPOOLES/Graph/src/Graph_equivMap.o
SPOOLES/Graph/src/Graph_init.o SPOOLES/Graph/src/Graph_util.o
SPOOLES/I2Ohash/src/I2Ohash_basics.o SPOOLES/I2Ohash/src/I2Ohash_init.o
SPOOLES/I2Ohash/src/I2Ohash_util.o SPOOLES/IIheap/src/IIheap_basics.o
SPOOLES/IV/src/IV_IO.o SPOOLES/IV/src/IV_basics.o SPOOLES/IV/src/IV_init.o
SPOOLES/IV/src/IV_instance.o SPOOLES/IV/src/IV_util.o SPOOLES/IVL/src/IVL_IO.o
SPOOLES/IVL/src/IVL_basics.o SPOOLES/IVL/src/IVL_init.o
SPOOLES/IVL/src/IVL_instance.o SPOOLES/IVL/src/IVL_listmanip.o
SPOOLES/IVL/src/IVL_util.o SPOOLES/Ideq/src/Ideq_basics.o
SPOOLES/Ideq/src/Ideq_resize.o SPOOLES/Ideq/src/Ideq_util.o
SPOOLES/InpMtx/src/InpMtx_IO.o SPOOLES/InpMtx/src/InpMtx_basics.o
SPOOLES/InpMtx/src/InpMtx_fullAdj.o SPOOLES/InpMtx/src/InpMtx_init.o
SPOOLES/InpMtx/src/InpMtx_input.o SPOOLES/InpMtx/src/InpMtx_instance.o
SPOOLES/InpMtx/src/InpMtx_permute.o SPOOLES/InpMtx/src/InpMtx_util.o
SPOOLES/Lock/src/Lock_basics.o SPOOLES/Lock/src/Lock_init.o
SPOOLES/Lock/src/Lock_util.o SPOOLES/MSMD/src/MSMD_MSMDinfo.o
SPOOLES/MSMD/src/MSMD_MSMDvtx.o SPOOLES/MSMD/src/MSMD_basics.o
SPOOLES/MSMD/src/MSMD_cleanReachSet.o SPOOLES/MSMD/src/MSMD_eliminate.o
SPOOLES/MSMD/src/MSMD_findInodes.o SPOOLES/MSMD/src/MSMD_frontETree.o
SPOOLES/MSMD/src/MSMD_init.o SPOOLES/MSMD/src/MSMD_order.o
SPOOLES/MSMD/src/MSMD_update.o SPOOLES/Network/src/Network_IO.o
SPOOLES/Network/src/Network_addArc.o SPOOLES/Network/src/Network_augmentPath.o
SPOOLES/Network/src/Network_basics.o
SPOOLES/Network/src/Network_findAugmentingPath.o
SPOOLES/Network/src/Network_findMaxFlow.o
SPOOLES/Network/src/Network_findMincut.o SPOOLES/Network/src/Network_init.o
SPOOLES/Pencil/src/Pencil_IO.o SPOOLES/Pencil/src/Pencil_basics.o
SPOOLES/Pencil/src/Pencil_init.o SPOOLES/SubMtx/src/SubMtx_IO.o
SPOOLES/SubMtx/src/SubMtx_basics.o SPOOLES/SubMtx/src/SubMtx_init.o
SPOOLES/SubMtx/src/SubMtx_instance.o SPOOLES/SubMtx/src/SubMtx_scalevec.o
SPOOLES/SubMtx/src/SubMtx_solve.o SPOOLES/SubMtx/src/SubMtx_solveH.o
SPOOLES/SubMtx/src/SubMtx_solveT.o SPOOLES/SubMtx/src/SubMtx_solveupd.o
SPOOLES/SubMtx/src/SubMtx_solveupdH.o SPOOLES/SubMtx/src/SubMtx_solveupdT.o
SPOOLES/SubMtx/src/SubMtx_sort.o SPOOLES/SubMtx/src/SubMtx_util.o
SPOOLES/SubMtxList/src/SubMtxList_util.o
SPOOLES/SubMtxManager/src/SubMtxManager_basics.o
SPOOLES/SubMtxManager/src/SubMtxManager_init.o
SPOOLES/SubMtxManager/src/SubMtxManager_util.o
SPOOLES/SymbFac/src/SymbFac_symbfac.o SPOOLES/Tree/src/Tree_IO.o
SPOOLES/Tree/src/Tree_basics.o SPOOLES/Tree/src/Tree_compress.o
SPOOLES/Tree/src/Tree_init.o SPOOLES/Tree/src/Tree_metrics.o
SPOOLES/Tree/src/Tree_perms.o SPOOLES/Tree/src/Tree_util.o
SPOOLES/Utilities/src/Utilities_CV.o SPOOLES/Utilities/src/Utilities_DV.o
SPOOLES/Utilities/src/Utilities_I2OP.o SPOOLES/Utilities/src/Utilities_IP.o
SPOOLES/Utilities/src/Utilities_IV.o SPOOLES/Utilities/src/Utilities_PIV.o
SPOOLES/Utilities/src/Utilities_ZV.o SPOOLES/Utilities/src/Utilities_iohb.o
SPOOLES/Utilities/src/Utilities_newsort.o
SPOOLES/Utilities/src/Utilities_sortAndCompress.o SPOOLES/ZV/src/ZV_basics.o
SPOOLES/ZV/src/ZV_init.o SPOOLES/ZV/src/ZV_instance.o
SPOOLES/misc/src/misc_orderViaBestOfNDandMS.o -lm -o
calculix
...
during GIMPLE pass: vect
SPOOLES/SubMtx/src/SubMtx_solve.c: In function 'SubMtx_solve':
SPOOLES/SubMtx/src/SubMtx_solve.c:45:1: internal compiler error: in
dr_misalignment, at tree-vectorizer.h:1245
45 | SubMtx_solve (
| ^
0x749077 dr_misalignment(dr_vec_info*)
../../src-trunk/gcc/tree-vectorizer.h:1245
0x749fd7 dr_misalignment(dr_vec_info*)
../../src-trunk/gcc/tree.h:3232
0x749fd7 aligned_access_p
../../src-trunk/gcc/tree-vectorizer.h:1263
0x749fd7 vect_supportable_dr_alignment(dr_vec_info*, bool)
../../src-trunk/gcc/tree-vect-data-refs.c:6324
0xdf22ad vect_get_load_cost(_stmt_vec_info*, int, bool, unsigned int*, unsigned
int*, vec<stmt_info_for_cost, va_heap, vl_ptr>*, vec<stmt_info_for_cost,
va_heap, vl_ptr>*, bool)
../../src-trunk/gcc/tree-vect-stmts.c:1231
0xe09f2f vect_model_load_cost
../../src-trunk/gcc/tree-vect-stmts.c:1205
0xe09f2f vectorizable_load
../../src-trunk/gcc/tree-vect-stmts.c:7595
0xe0e4af vect_analyze_stmt(_stmt_vec_info*, bool*, _slp_tree*, _slp_instance*,
vec<stmt_info_for_cost, va_heap, vl_ptr>*)
../../src-trunk/gcc/tree-vect-stmts.c:9568
0xe3615f vect_slp_analyze_node_operations_1
../../src-trunk/gcc/tree-vect-slp.c:2488
0xe3615f vect_slp_analyze_node_operations
../../src-trunk/gcc/tree-vect-slp.c:2535
0xe361db vect_slp_analyze_node_operations
../../src-trunk/gcc/tree-vect-slp.c:2526
0xe361db vect_slp_analyze_node_operations
../../src-trunk/gcc/tree-vect-slp.c:2526
0xe361db vect_slp_analyze_node_operations
../../src-trunk/gcc/tree-vect-slp.c:2526
0xe361db vect_slp_analyze_node_operations
../../src-trunk/gcc/tree-vect-slp.c:2526
0xe361db vect_slp_analyze_node_operations
../../src-trunk/gcc/tree-vect-slp.c:2526
0xe361db vect_slp_analyze_node_operations
../../src-trunk/gcc/tree-vect-slp.c:2526
0xe38678 vect_slp_analyze_operations(vec_info*)
../../src-trunk/gcc/tree-vect-slp.c:2567
0xe3b516 vect_slp_analyze_bb_1
../../src-trunk/gcc/tree-vect-slp.c:2889
0xe3b516 vect_slp_bb(basic_block_def*)
../../src-trunk/gcc/tree-vect-slp.c:2976
0xe40007 try_vectorize_loop_1
../../src-trunk/gcc/tree-vectorizer.c:926
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
make[4]: *** [/tmp/cc7BI5fw.mk:44: /tmp/calculix.CpUD7E.ltrans14.ltrans.o]
Error 1
>From gcc-bugs-return-619555-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 20:40:29 2018
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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/58372] internal compiler error: ix86_compute_frame_layout
Date: Mon, 29 Oct 2018 20:40:00 -0000
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--- Comment #17 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Kai Tietz from comment #16)
> > If you want to experiment, try the following patch:
> >
> > Index: config/i386/mingw32.h
> > ===================================================================
> > --- config/i386/mingw32.h (revision 265582)
> > +++ config/i386/mingw32.h (working copy)
> > @@ -251,6 +251,10 @@
> > #undef CHECK_EXECUTE_STACK_ENABLED
> > #define CHECK_EXECUTE_STACK_ENABLED flag_setstackexecutable
> >
> > +#undef PREFERRED_STACK_BOUNDARY_DEFAULT
> > +#define PREFERRED_STACK_BOUNDARY_DEFAULT \
> > + (TARGET_64BIT ? 128 : MIN_STACK_BOUNDARY)
> > +
> > /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygming. */
> > /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */
> > #if DWARF2_UNWIND_INFO>
> > But I don't know the details of MS ABI, so I can't tell if the patch is
> > correct.
>
> The x64 ABI part is correct, as for x64 abit there is just 16-byte stack
> alignment. For x86 ms abi things aren't that strict AFAIK. The common stack
> alignment on function entry is the natural one, but there is in general no
> strict requirement for it. So the patch looks fine, but should be commented
> in the release notes, as there might be fallout seen caused by it.
Unfortunately, I have no way of testing the patch on windows targets.
Please also note that the testcase still ICEs with patched compiler when
-mpreferred-stack-bonudary=4 option is used. Based on the comments in
emit-rtl.h:
/* The largest alignment needed on the stack, including requirement
for outgoing stack alignment. */
unsigned int stack_alignment_needed;
/* Preferred alignment of the end of stack frame, which is preferred
to call other functions. */
unsigned int preferred_stack_boundary;
it looks that somewhere stack_alignment_needed should be set to at least the
value of preferred_stack_boundary. Just above the assert in i386.c, there is:
/* 64-bit MS ABI seem to require stack alignment to be always 16,
except for function prologues, leaf functions and when the defult
incoming stack boundary is overriden at command line or via
force_align_arg_pointer attribute. */
if ((TARGET_64BIT_MS_ABI && crtl->preferred_stack_boundary < 128)
&& (!crtl->is_leaf || cfun->calls_alloca != 0
|| ix86_current_function_calls_tls_descriptor
|| ix86_incoming_stack_boundary < 128))
{
crtl->preferred_stack_boundary = 128;
crtl->stack_alignment_needed = 128;
}
so this maybe hints what to do in x86 case. Perhaps the patch in Comment #8 is
the way to go.
>From gcc-bugs-return-619556-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 20:47:34 2018
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Subject: [Bug libstdc++/59472] Many warnings "type of 'X' does not match original declaration" when linking with libstdc++ static library compiled with -flto
Date: Mon, 29 Oct 2018 20:47:00 -0000
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--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I think it's worth keeping open for my suggestion in comment 3 (which I'd
forgotten about).
>From gcc-bugs-return-619557-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 21:29:34 2018
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From: "seurer at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug other/87802] New: [9 regression] g++.dg/vect/slp-pr87105.cc fails starting with r265522
Date: Mon, 29 Oct 2018 21:29:00 -0000
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Bug ID: 87802
Summary: [9 regression] g++.dg/vect/slp-pr87105.cc fails
starting with r265522
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I am seeing this just on power 6 and 7 BE.
testgcc: Tried 265522
testgcc: make -k check-gcc RUNTESTFLAGS=vect.exp=g++.dg/vect/slp-pr87105.cc
FAIL: g++.dg/vect/slp-pr87105.cc -std=c++14 scan-tree-dump-times slp2 "basic
block part vectorized" 1
FAIL: g++.dg/vect/slp-pr87105.cc -std=c++14 scan-tree-dump slp2
"vect_iftmp[^\rm]* = MIN"
FAIL: g++.dg/vect/slp-pr87105.cc -std=c++17 scan-tree-dump-times slp2 "basic
block part vectorized" 1
FAIL: g++.dg/vect/slp-pr87105.cc -std=c++17 scan-tree-dump slp2
"vect_iftmp[^\rm]* = MIN"
>From gcc-bugs-return-619558-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 21:56:17 2018
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Subject: [Bug web/87803] New: GCC 6.5.0 release directory is misnamed
Date: Mon, 29 Oct 2018 21:56:00 -0000
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Bug ID: 87803
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I'm not sure this really counts as a bug in GCC as such, but...
Within ftp://ftp.gnu.org/gnu/gcc/, the subdirectory for each release is usually
named gcc-X.Y.Z - however, the subdirectory for GCC 6.5.0 is just called 6.5.0,
rather than gcc-6.5.0.
I spotted this because I have a packaging tool that scans for new releases, and
it wasn't picking up 6.5.0 because it didn't follow the usual pattern. I think
it'd be a good idea to rename the directory to match the others (but keep a
symlink called 6.5.0 in case anyone's already changed their packaging).
>From gcc-bugs-return-619559-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 22:01:00 2018
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Subject: [Bug middle-end/87041] [8/9 Regression] GCC 8 regression: -Wformat "reading through null pointer" on unreachable code
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Martin Sebor <msebor at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Keywords| |patch
--- Comment #8 from Martin Sebor <msebor at gcc dot gnu.org> ---
Patch: https://gcc.gnu.org/ml/gcc-patches/2018-10/msg01860.html
>From gcc-bugs-return-619560-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 22:03:30 2018
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From: "kugan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/87469] [9 Regression] ice in record_estimate, at tree-ssa-loop-niter.c:3271
Date: Mon, 29 Oct 2018 22:03:00 -0000
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--- Comment #5 from kugan at gcc dot gnu.org ---
Author: kugan
Date: Mon Oct 29 22:02:45 2018
New Revision: 265605
URL: https://gcc.gnu.org/viewcvs?rev=265605&root=gcc&view=rev
Log:
gcc/testsuite/ChangeLog:
2018-10-29 Kugan Vivekanandarajah <kuganv@linaro.org>
PR middle-end/87469
* g++.dg/pr87469.C: New test.
gcc/ChangeLog:
2018-10-29 Kugan Vivekanandarajah <kuganv@linaro.org>
PR middle-end/87469
* tree-ssa-loop-niter.c (number_of_iterations_popcount): Fix niter
max value.
Added:
trunk/gcc/testsuite/g++.dg/pr87469.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-loop-niter.c
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Subject: [Bug web/87803] GCC 6.5.0 release directory is misnamed
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>From gcc-bugs-return-619562-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Oct 29 22:33:22 2018
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Subject: [Bug fortran/85896] ICE in gfc_convert_constant(): Unexpected type
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What |Removed |Added
----------------------------------------------------------------------------
CC| |anlauf at gmx dot de
--- Comment #6 from Harald Anlauf <anlauf at gmx dot de> ---
F2018 has the following:
8.2 Type declaration statement
A name that identifies a specific intrinsic function has a type as specified
in 16.8. An explicit type declaration statement is not required; however, it
is permitted. Specifying a type for a generic intrinsic function name in a
type declaration statement has no effect.
This coincides with what I see with Intel, NAG, PGI.
Thus: ICE on valid code.
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Subject: [Bug c++/58372] internal compiler error: ix86_compute_frame_layout
Date: Mon, 29 Oct 2018 22:40:00 -0000
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Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|mingw32-sjlj |x86 sjlj
CC| |hjl.tools at gmail dot com
--- Comment #18 from Uroš Bizjak <ubizjak at gmail dot com> ---
Digging a bit deeper: the testcase from Comment #14:
__attribute__((__target__("rdrnd")))
void f(unsigned int * b) noexcept {
__builtin_ia32_rdrand32_step(b);
}
also fails for all x86 targets when the compiler is configured with
--enable-sjlj-exceptions, so the failure is not mingw specific.
Following is x86_64-linux-gnu target:
cc1plus -O2 -mpreferred-stack-boundary=4 -quiet -fpreprocessed pr58372.C
during RTL pass: ira
pr58372.C: In function ‘void f(unsigned int*)’:
pr58372.C:4:5: internal compiler error: in ix86_compute_frame_layout, at
config/i386/i386.c:11159
4 | }
| ^
0x1821b24 ix86_compute_frame_layout
/home/uros/gcc-svn/trunk/gcc/config/i386/i386.c:11159
0x128b447 set_initial_elim_offsets
...
-mpreferred-stack-boundary=3 (instead of 4) again "fixes" the ICE.
It looks that stack realignment doesn't work with SjLj exceptions. As shown in
Comment #15, building the call to _Unwind_SjLj_Register sets
crtl->preferred_stack_boundary to 128, but nothing updates
crtl->stack_alignment_needed. This leads to the shown assert failure.
HJ, do you have an idea what is going wrong with realignment here?
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Subject: [Bug c++/56856] -Wformat warnings don't show location *within* format string in C++ FE
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56856
--- Comment #13 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Author: dmalcolm
Date: Mon Oct 29 23:44:10 2018
New Revision: 265609
URL: https://gcc.gnu.org/viewcvs?rev=265609&root=gcc&view=rev
Log:
Folding and check_function_arguments
This patch eliminates the arglocs array I introduced to build_over_call
in r264887, and eliminates the call to maybe_constant_value when building
"fargs" (thus retaining location wrapper nodes).
Instead, this patch requires that any checks within
check_function_arguments that need folded arguments do their own folding.
Of the various checks:
(a) check_function_nonnull already calls fold_for_warn,
(b) check_function_format doesn't need folding
(c) check_function_sentinel needs fold_for_warn in one place, which the
patch adds, and
(d) check_function_restrict needs per-argument folding, which the patch
adds. Given that it scans before and after resetting TREE_VISITED on
each argument, it seemed best to make a copy of the array, folding each
argument from the outset, rather than repeatedly calling fold_for_warn;
gcc/c-family/ChangeLog:
PR c++/56856
* c-common.c (check_function_sentinel): Call fold_for_warn on the
argument.
(check_function_restrict): Rename param "argarray" to
"unfolded_argarray", and make a copy named "argarray", calling
fold_for_warn on each argument.
(check_function_arguments): Add note about responsibility for
folding the arguments.
gcc/cp/ChangeLog:
PR c++/56856
* call.c (build_over_call): Eliminate the "arglocs" array, and the
call to maybe_constant_value when building "fargs".
Modified:
trunk/gcc/c-family/ChangeLog
trunk/gcc/c-family/c-common.c
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/call.c
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Subject: [Bug tree-optimization/87756] missing unterminated argument warning using address of a constant character
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
Patch: https://gcc.gnu.org/ml/gcc-patches/2018-10/msg01866.html
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Subject: [Bug c++/87721] [9 Regression] ICE in linemap_position_for_line_and_column at gcc/libcpp/line-map.c:842 since r265271
Date: Mon, 29 Oct 2018 23:59:00 -0000
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--- Comment #4 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Author: dmalcolm
Date: Mon Oct 29 23:58:34 2018
New Revision: 265611
URL: https://gcc.gnu.org/viewcvs?rev=265611&root=gcc&view=rev
Log:
Fix ICE in get_substring_ranges_for_loc on __FILE__ (PR c++/87721)
PR c++/87721 reports a crash in get_substring_ranges_for_loc introduced
by r265271, my fix for PR 87562.
The new issue occurs when attempting to get a location with a string
literal inside a macro in which the first token is __FILE__ (formed via
concatenation). Attempting to get the spelling location of __FILE__
fails, leading to NULL for start_ord_map and final_ord_map, and thus
a NULL pointer dereference.
Given that our "on-demand" substring locations approach reparses the
string literals, there isn't a good way to access the locations inside
such string literals: attempting to reparse __FILE__ fails with a
"missing open quote".
This patch applies the easy fix by gracefully rejecting the case where
the spelling locations for the start or finish give us NULL maps.
gcc/ChangeLog:
PR c++/87721
* input.c (get_substring_ranges_for_loc): Detect if
linemap_resolve_location gives us a NULL map, and reject
this case.
gcc/testsuite/ChangeLog:
PR c++/87721
* c-c++-common/substring-location-PR-87721.c: New test.
* gcc.dg/plugin/diagnostic-test-string-literals-1.c: Add test for
PR 87721.
* gcc.dg/plugin/diagnostic_plugin_test_string_literals.c
(test_string_literals): Fold the index arguments before checking
for INTEGER_CST.
Added:
trunk/gcc/testsuite/c-c++-common/substring-location-PR-87721.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/input.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-string-literals-1.c
trunk/gcc/testsuite/gcc.dg/plugin/diagnostic_plugin_test_string_literals.c
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Subject: [Bug tree-optimization/87562] [9 Regression] ICE in in linemap_position_for_line_and_column, at libcpp/line-map.c:848
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--- Comment #9 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Author: dmalcolm
Date: Mon Oct 29 23:58:34 2018
New Revision: 265611
URL: https://gcc.gnu.org/viewcvs?rev=265611&root=gcc&view=rev
Log:
Fix ICE in get_substring_ranges_for_loc on __FILE__ (PR c++/87721)
PR c++/87721 reports a crash in get_substring_ranges_for_loc introduced
by r265271, my fix for PR 87562.
The new issue occurs when attempting to get a location with a string
literal inside a macro in which the first token is __FILE__ (formed via
concatenation). Attempting to get the spelling location of __FILE__
fails, leading to NULL for start_ord_map and final_ord_map, and thus
a NULL pointer dereference.
Given that our "on-demand" substring locations approach reparses the
string literals, there isn't a good way to access the locations inside
such string literals: attempting to reparse __FILE__ fails with a
"missing open quote".
This patch applies the easy fix by gracefully rejecting the case where
the spelling locations for the start or finish give us NULL maps.
gcc/ChangeLog:
PR c++/87721
* input.c (get_substring_ranges_for_loc): Detect if
linemap_resolve_location gives us a NULL map, and reject
this case.
gcc/testsuite/ChangeLog:
PR c++/87721
* c-c++-common/substring-location-PR-87721.c: New test.
* gcc.dg/plugin/diagnostic-test-string-literals-1.c: Add test for
PR 87721.
* gcc.dg/plugin/diagnostic_plugin_test_string_literals.c
(test_string_literals): Fold the index arguments before checking
for INTEGER_CST.
Added:
trunk/gcc/testsuite/c-c++-common/substring-location-PR-87721.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/input.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-string-literals-1.c
trunk/gcc/testsuite/gcc.dg/plugin/diagnostic_plugin_test_string_literals.c
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87721] [9 Regression] ICE in linemap_position_for_line_and_column at gcc/libcpp/line-map.c:842 since r265271
Date: Tue, 30 Oct 2018 00:03:00 -0000
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David Malcolm <dmalcolm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Should be fixed by r265611; marking as resolved.
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Subject: [Bug c/87795] Excessive alignment permitted for functions and labels
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Martin Sebor <msebor at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Keywords| |accepts-invalid,
| |ice-on-invalid-code
Target| |pdp11-aout
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-30
CC| |msebor at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed. I get the following output with a pdp11-aout configured
cross-compiler:
$ cat t.c && gcc -S -O2 -Wall t.c
int a2 __attribute__ ((aligned (2)));
int a4 __attribute__ ((aligned (4)));
int ag __attribute__ ((aligned (65536)));
void f2(void) __attribute__ ((aligned (2)));
void f4(void) __attribute__ ((aligned (4)));
void fg(void) __attribute__ ((aligned (65536)));
void f2(void) {}
void f4(void) {}
void fg(void) {}
t.c:2:5: error: alignment of ‘a4’ is greater than maximum object file alignment
2
2 | int a4 __attribute__ ((aligned (4)));
| ^~
t.c:3:5: error: alignment of ‘ag’ is greater than maximum object file alignment
2
3 | int ag __attribute__ ((aligned (65536)));
| ^~
After removing the variable declarations I get an ICE:
during RTL pass: final
t.c: In function ‘f4’:
t.c:6:1: internal compiler error: in assemble_start_function, at varasm.c:1801
6 | void f4(void) {}
| ^~~~
0x1345817 assemble_start_function(tree_node*, char const*)
/ssd/src/gcc/svn/gcc/varasm.c:1801
0xaf2550 rest_of_handle_final
/ssd/src/gcc/svn/gcc/final.c:4645
0xaf28c2 execute
/ssd/src/gcc/svn/gcc/final.c:4723
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
>From gcc-bugs-return-619570-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 01:21:55 2018
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From: "dory at satx dot rr.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87771] My first 3d printer, and I messed up trying to update the .ini file. So, I'm trying to put the original software back in it, and I get this internal compiler error
Date: Tue, 30 Oct 2018 01:21:00 -0000
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--- Comment #7 from Donna Ory <dory at satx dot rr.com> ---
(In reply to Eric Gallager from comment #6)
> (In reply to Donna Ory from comment #4)
> > I got the Master Tevo Flash files from here:
> >
> > https://www.facebook.com/groups/2058176381100233/files/
>
> That's a closed group.
>
> >
> > I have the "Standard" version, so that's the only one that I kept out of the
> > zip file.
> >
> > Since it has all the Marlin files in it, I didn't need to download a new
> > Marlin set up.
> >
> > I got the U8glib files off of github.
>
> This one? https://github.com/olikraus/u8glib
>
> > I downloaded the zip file, to the folder where I have my 3D printer stuff,
> > and the followed the directions to add it to the library. I did not unzip it.
> >
> > Since this, I even tried using the newest version U8glib 1.18.1, but it
> > still has the same errors.
How do I get the file to you?
>From gcc-bugs-return-619571-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 02:03:27 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/79872] document placeholder %K in gcc-internal-format
Date: Tue, 30 Oct 2018 02:03:00 -0000
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Eric Gallager <egallager at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dmalcolm at gcc dot gnu.org,
| |msebor at gcc dot gnu.org
--- Comment #4 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Manuel López-Ibáñez from comment #3)
> %K is designed to print the inline stack, but I cannot see this documented
> anywhere (and as far as I know, only the C++ front-end uses it).
I think it's been put to use in more places recently; cc-ing people I remember
discussing bugs about modifying warnings to show the inlining stack
>From gcc-bugs-return-619572-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 02:12:44 2018
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Subject: [Bug c++/79001] spurious "defined but not used" warning with explicit instantiation
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Eric Gallager <egallager at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dmalcolm at gcc dot gnu.org,
| |dodji at gcc dot gnu.org
--- Comment #2 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Eric Gallager from comment #1)
> Confirmed that g++ warns for "f" but not "g"
Diagnostics maintainers, is this the intended behavior?
>From gcc-bugs-return-619573-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 04:07:41 2018
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Subject: [Bug middle-end/87041] [8/9 Regression] GCC 8 regression: -Wformat "reading through null pointer" on unreachable code
Date: Tue, 30 Oct 2018 04:07:00 -0000
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--- Comment #9 from Andrew Church <achurch+gcc at achurch dot org> ---
Trunk r265614 with the patch from comment #8 no longer emits spurious warnings
from -Wformat for all of my cases which previously triggered such warnings.
Thanks for the patch.
>From gcc-bugs-return-619574-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 04:35:00 2018
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Subject: [Bug middle-end/87489] Spurious -Wnonnull warning
Date: Tue, 30 Oct 2018 04:35:00 -0000
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--- Comment #5 from Andrew Church <achurch+gcc at achurch dot org> ---
Simpler testcase (based on the testcase in bug 87041):
extern int strcmp(const char *a, const char *b) __attribute__((nonnull(1, 2)));
int foo(void) {
const char * const s = 0;
if (s)
return strcmp(s, "");
else
return 2;
}
foo.c: In function 'foo':
foo.c:5:16: warning: null argument where non-null required (argument 1)
[-Wnonnull]
return strcmp(s, "");
^~~~~~
>From gcc-bugs-return-619575-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 06:29:57 2018
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Subject: [Bug fortran/44646] [F08] Implement DO CONCURRENT
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Jürgen Reuter <juergen.reuter at desy dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |juergen.reuter at desy dot de
--- Comment #10 from Jürgen Reuter <juergen.reuter at desy dot de> ---
The table in https://gcc.gnu.org/wiki/Fortran2008Status
still lists 'do concurrent' as partial feature, and refers to this PR which is
however closed. Could this be colored 'green' in the table?
>From gcc-bugs-return-619576-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 08:01:21 2018
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Subject: [Bug middle-end/87757] weird underlining and colors in sprintf warnings for unterminated arrays
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Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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Last reconfirmed| |2018-10-30
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--- Comment #5 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
(In reply to David Malcolm from comment #4)
> Aldy: do you remember why the arguments need to have the same location as
> the call itself?
>
> The first case works because during gimplify_arg it's wrapped in a NOP_EXPR
> which is casting from char[] to char *, and it's this NOP_EXPR which gets
> its location modified.
>
> The second case doesn't have the NOP_EXPR.
This looks like an oversight on my part.
In the original patch you mention, there was a now defunct bit that seems
suspicious and my shed light on the problem:
+ /* FIXME diagnostics: This should be the location of the argument,
+ not the FNDECL. E.g., for an old-style declaration
+
+ int f10(v) { blah; }
+
+ We should use the location of the V, not the F10.
+ Unfortunately, the V is an IDENTIFIER_NODE which has no
+ location. In the future we need locations for c_arg_info
+ entries.
+
+ See gcc.dg/Wshadow-3.c for an example of this problem. */
So maybe I was assuming that the problematic line was also dealing with an
IDENTIFIER_NODE which had no place to put a location?
Either way, it looks like some sort of oversight.
Confirmed, BTW.
>From gcc-bugs-return-619577-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 08:06:52 2018
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Subject: [Bug tree-optimization/87801] [9 Regression] CPU2006 454.calculix failed to build with LTO
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Martin Liška <marxin at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |marxin at gcc dot gnu.org
Resolution|--- |DUPLICATE
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Dup.
*** This bug has been marked as a duplicate of bug 87785 ***
>From gcc-bugs-return-619578-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 08:06:53 2018
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Subject: [Bug tree-optimization/87785] [9 Regression] ICE in dr_misalignment, at tree-vectorizer.h:1245 on 454.calculix with -Ofast and -flto
Date: Tue, 30 Oct 2018 08:06:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
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--- Comment #7 from Martin Liška <marxin at gcc dot gnu.org> ---
*** Bug 87801 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-619580-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 08:08:35 2018
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Subject: [Bug tree-optimization/87800] [9 Regression] CPU2006 416.gamess failed to build with LTO
Date: Tue, 30 Oct 2018 08:08:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2018-10-30
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--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.
>From gcc-bugs-return-619579-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 08:08:17 2018
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Subject: [Bug other/87802] [9 regression] g++.dg/vect/slp-pr87105.cc fails starting with r265522
Date: Tue, 30 Oct 2018 08:08:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I will have a look.
>From gcc-bugs-return-619581-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 08:14:08 2018
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87793] [8/9 Regression] GCC reports error when compiling with "-fpic -Os -g"
Date: Tue, 30 Oct 2018 08:14:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-30
CC| |jakub at gcc dot gnu.org,
| |marxin at gcc dot gnu.org
Known to work| |7.3.0
Target Milestone|--- |8.3
Summary|GCC reports error when |[8/9 Regression] GCC
|compiling with "-fpic -Os |reports error when
|-g" |compiling with "-fpic -Os
| |-g"
Ever confirmed|0 |1
Known to fail| |8.2.0, 9.0
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started with r254025.
>From gcc-bugs-return-619582-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 08:16:29 2018
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Subject: [Bug web/87803] GCC 6.5.0 release directory is misnamed
Date: Tue, 30 Oct 2018 08:16:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
CC| |marxin at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed.
>From gcc-bugs-return-619583-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 08:19:24 2018
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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug web/87803] GCC 6.5.0 release directory is misnamed
Date: Tue, 30 Oct 2018 08:19:00 -0000
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--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Unfortunately the GNU ftp uploading directives don't allow to rename a
directory. I've mailed the administrator.
>From gcc-bugs-return-619584-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 08:22:49 2018
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From: "rguenther at suse dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug web/87803] GCC 6.5.0 release directory is misnamed
Date: Tue, 30 Oct 2018 08:22:00 -0000
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--- Comment #3 from rguenther at suse dot de <rguenther at suse dot de> ---
On Tue, 30 Oct 2018, jakub at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87803
>
> --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
> Unfortunately the GNU ftp uploading directives don't allow to rename a
> directory. I've mailed the administrator.
IIRC I made a mistake myself a few years ago and resorted to
delete and re-upload. Delete is possible IIRC.
>From gcc-bugs-return-619585-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 08:42:53 2018
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Subject: [Bug web/87803] GCC 6.5.0 release directory is misnamed
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Done that way now.
>From gcc-bugs-return-619586-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 09:01:41 2018
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Subject: [Bug fortran/44646] [F08] Implement DO CONCURRENT
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--- Comment #11 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
I've changed the entry in the table to PR78219;
the KIND specification in the forall index is still missing.
so yellow is appropriate.
>From gcc-bugs-return-619587-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 09:21:12 2018
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From: "juergen.reuter at desy dot de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/83064] DO CONCURRENT and auto-parallelization
Date: Tue, 30 Oct 2018 09:21:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83064
Jürgen Reuter <juergen.reuter at desy dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |juergen.reuter at desy dot de
--- Comment #30 from Jürgen Reuter <juergen.reuter at desy dot de> ---
To me it looks like that after Thomas' commit from April '18 the table of
results is now:
Unrolled do-loop
Options Parallel Correct
-Og -ftree-parallelize-loops=2 N Y
-O1 -ftree-parallelize-loops=2 Y Y
-O2 -ftree-parallelize-loops=2 Y Y
-O3 -ftree-parallelize-loops=2 Y Y
-Ofast -ftree-parallelize-loops=2 Y Y
Modulo inside do-loop, or Indexed via host associated array
Options Parallel Correct
-Og -ftree-parallelize-loops=2 N Y
-O1 -ftree-parallelize-loops=2 Y Y
-O2 -ftree-parallelize-loops=2 Y Y
-O3 -ftree-parallelize-loops=2 Y Y
-Ofast -ftree-parallelize-loops=2 Y Y
The first number of PI in the test (the one with 16 digits) is different
between the unrolled do-loop and the module inside do-loop/indexed via host
association, while the second value (8 digits) is always the same. But all
results are consistent and do not change change any more in consecutive runs.
So is this fixed now?
>From gcc-bugs-return-619588-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 09:31:27 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/87804] New: Omp simd loop with sin calls not vectorized when inside omp parallel region and the sin parameter uses value from shared array
Date: Tue, 30 Oct 2018 09:31:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87804
Bug ID: 87804
Summary: Omp simd loop with sin calls not vectorized when
inside omp parallel region and the sin parameter uses
value from shared array
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
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Created attachment 44926
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44926&action=edit
testcase
First of all I'm not sure if this is the right component, however selecting
fortran fronted for now, since equivalent C code works fine.
I need to use vectorized math functions from libmvec (with omp simd) inside an
omp parallel region. The omp simd part works (not by default but using the
instructions from here: https://gcc.gnu.org/ml/gcc/2017-11/msg00014.html),
however when the parameter to the function depends on some value from an shared
array it doesn't vectorize. It doesn't matter if the array is declared with
constant dimension or allocated on the heap. See the attached minimal testcase.
gfortran -O2 -fopenmp -fopt-info-omp-vec-optimized-all test.f03
Analyzing loop at test.f03:23
test.f03:23:0: note: ===== analyze_loop_nest =====
test.f03:23:0: note: === vect_analyze_loop_form ===
test.f03:23:0: note: === get_loop_niters ===
test.f03:23:0: note: === vect_analyze_data_refs ===
test.f03:23:0: note: got vectype for stmt: _37 = *.omp_data_i_36(D).b;
vector(2) unsigned long
test.f03:23:0: note: got vectype for stmt: _38 = *_37.data;
vector(2) unsigned long
test.f03:23:0: note: not vectorized: not suitable for gather load _38 =
*_37.data;
test.f03:23:0: note: bad data references.
test.f03:19:0: note: vectorized 0 loops in function.
If I remove the outer "omp parallel do" the inner loop vectorizes fine. So far
the only solution I have found which makes it work together is to place the
array on the stack and make it firstprivate in the parallel region. However
this IMO should not be needed as I'm using it only for reading inside the loops
(and this workaround has some overhead).
Gfortran: 8.2.1
Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
This is my first bug report for gcc, so please let me know if more info is
needed or if I made some obvious mistake in my testcase.
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Subject: [Bug c++/87805] New: Incomplete diagnostic for -Wnoexcept
Date: Tue, 30 Oct 2018 09:36:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87805
Bug ID: 87805
Summary: Incomplete diagnostic for -Wnoexcept
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P3
Component: c++
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The warning option "-Wnoexcept" produces incomplete diagnostics
for the following testcase:
==================================================
#include <unordered_set>
struct Hash
{
char operator()(char) const { return 0; }
};
std::unordered_set<char, Hash> x;
==================================================
==================================================
/gcc-8.2.0/include/c++/8.2.0/type_traits: In instantiation of 'constexpr bool
std::__call_is_nt(std::__invoke_other) [with _Fn = const Hash&; _Args = {const
char&}]':
/gcc-8.2.0/include/c++/8.2.0/type_traits:2658:34: required by substitution of
'template<bool __v> using __bool_constant = std::integral_constant<bool, __v>
[with bool __v = std::__call_is_nt<const Hash&, const
char&>((std::__result_of_success<char, std::__invoke_other>::__invoke_type{},
std::__result_of_success<char, std::__invoke_other>::__invoke_type()))]'
/gcc-8.2.0/include/c++/8.2.0/type_traits:2656:12: required from 'struct
std::__call_is_nothrow<std::__invoke_result<const Hash&, const char&>, const
Hash&, const char&>'
/gcc-8.2.0/include/c++/8.2.0/type_traits:131:12: required from 'struct
std::__and_<std::__is_invocable<const Hash&, const char&>,
std::__call_is_nothrow<std::__invoke_result<const Hash&, const char&>, const
Hash&, const char&> >'
/gcc-8.2.0/include/c++/8.2.0/type_traits:2668:12: required from 'struct
std::__is_nothrow_invocable<const Hash&, const char&>'
/gcc-8.2.0/include/c++/8.2.0/type_traits:131:12: required from 'struct
std::__and_<std::__is_fast_hash<Hash>, std::__is_nothrow_invocable<const Hash&,
const char&> >'
/gcc-8.2.0/include/c++/8.2.0/type_traits:142:31: required from 'struct
std::__not_<std::__and_<std::__is_fast_hash<Hash>,
std::__is_nothrow_invocable<const Hash&, const char&> > >'
/gcc-8.2.0/include/c++/8.2.0/bits/unordered_set.h:99:63: required from 'class
std::unordered_set<char, Hash>'
bug.cc:8:32: required from here
bug.cc:5:8: warning: but 'char Hash::operator()(char) const' does not throw;
perhaps it should be declared 'noexcept' [-Wnoexcept]
char operator()(char) const { return 0; }
^~~~~~~~
==================================================
Only with the additional option "-Wsystem-headers" you get the complete
diagnostics:
==================================================
In file included from /gcc-8.2.0/include/c++/8.2.0/unordered_set:38,
from bug.cc:1:
/gcc-8.2.0/include/c++/8.2.0/type_traits: In instantiation of 'constexpr bool
std::__call_is_nt(std::__invoke_other) [with _Fn = const Hash&; _Args = {const
char&}]':
/gcc-8.2.0/include/c++/8.2.0/type_traits:2658:34: required by substitution of
'template<bool __v> using __bool_constant = std::integral_constant<bool, __v>
[with bool __v = std::__call_is_nt<const Hash&, const
char&>((std::__result_of_success<char, std::__invoke_other>::__invoke_type{},
std::__result_of_success<char, std::__invoke_other>::__invoke_type()))]'
/gcc-8.2.0/include/c++/8.2.0/type_traits:2656:12: required from 'struct
std::__call_is_nothrow<std::__invoke_result<const Hash&, const char&>, const
Hash&, const char&>'
/gcc-8.2.0/include/c++/8.2.0/type_traits:131:12: required from 'struct
std::__and_<std::__is_invocable<const Hash&, const char&>,
std::__call_is_nothrow<std::__invoke_result<const Hash&, const char&>, const
Hash&, const char&> >'
/gcc-8.2.0/include/c++/8.2.0/type_traits:2668:12: required from 'struct
std::__is_nothrow_invocable<const Hash&, const char&>'
/gcc-8.2.0/include/c++/8.2.0/type_traits:131:12: required from 'struct
std::__and_<std::__is_fast_hash<Hash>, std::__is_nothrow_invocable<const Hash&,
const char&> >'
/gcc-8.2.0/include/c++/8.2.0/type_traits:142:31: required from 'struct
std::__not_<std::__and_<std::__is_fast_hash<Hash>,
std::__is_nothrow_invocable<const Hash&, const char&> > >'
/gcc-8.2.0/include/c++/8.2.0/bits/unordered_set.h:99:63: required from 'class
std::unordered_set<char, Hash>'
bug.cc:8:32: required from here
/gcc-8.2.0/include/c++/8.2.0/type_traits:2652:68: warning: noexcept-expression
evaluates to 'false' because of a call to 'char Hash::operator()(char) const'
[-Wnoexcept]
return noexcept(std::declval<_Fn>()(std::declval<_Args>()...));
^
bug.cc:5:8: warning: but 'char Hash::operator()(char) const' does not throw;
perhaps it should be declared 'noexcept' [-Wnoexcept]
char operator()(char) const { return 0; }
^~~~~~~~
==================================================
The culprit seems to be the function maybe_noexcept_warning from cp/except.c
where both parts of the warning are emitted as separate warnings.
The first part is (wrongly) suppressed when it is located in a system header:
static void
maybe_noexcept_warning (tree fn)
{
if (TREE_NOTHROW (fn))
{
warning (OPT_Wnoexcept, "noexcept-expression evaluates to %<false%> "
"because of a call to %qD", fn);
warning_at (DECL_SOURCE_LOCATION (fn), OPT_Wnoexcept,
"but %qD does not throw; perhaps "
"it should be declared %<noexcept%>", fn);
}
}
>From gcc-bugs-return-619590-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 10:03:36 2018
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Subject: [Bug c++/87805] Incomplete diagnostic for -Wnoexcept
Date: Tue, 30 Oct 2018 10:03:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87805
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-30
Ever confirmed|0 |1
>From gcc-bugs-return-619591-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 10:07:37 2018
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From: "Ulrich.Windl at rz dot uni-regensburg.de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/87806] New: Option -Wall should warn about unused structs, typdefs, enums, etc
Date: Tue, 30 Oct 2018 10:07:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87806
Bug ID: 87806
Summary: Option -Wall should warn about unused structs,
typdefs, enums, etc
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
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Gcc with -Wall warns about unused static and local variables for a long time,
but it does not warn about unused typedefs, enums, structs, etc.
I see that there are specific options to enable that, but they are not by
default.
Is it due to the fact that many #include files define a lot of such (and most
of those are not used)? If so, maybe some #pragma to be used in include files
could suppress the warning then. Maybe even there are move clever ideas to
solve the problem.
BTW: With having option -Wmissing-field-initializers I could even imagine to
warn about single fields that are never used.
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Subject: [Bug c/87806] Option -Wall should warn about unused structs, typdefs, enums, etc
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87806
--- Comment #1 from Ulrich Windl <Ulrich.Windl at rz dot uni-regensburg.de> ---
This is an enhancement request (cant't set it in Bugzilla)
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From: "ro at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/87807] New: Passing float, double vectors as variadic args fails on sparcv9
Date: Tue, 30 Oct 2018 10:10:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87807
Bug ID: 87807
Summary: Passing float, double vectors as variadic args fails
on sparcv9
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: ebotcazou at gcc dot gnu.org
Target Milestone: ---
Target: sparc-sun-solaris2.*
Created attachment 44927
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44927&action=edit
float vector testcase
The attached testcase fails on sparcv9, but works on sparcv7:
$ gcc -m64 va-v2sf.c
$ ./a.out
a = { 1.000000, 2.000000 }
x = { 0.000000, 0.000000 }
$ gcc -m32 va-v2sf.c
$ ./a.out
a = { 1.000000, 2.000000 }
x = { 1.000000, 2.000000 }
The same happens for the equivalent double testcase, while it works on
i386/amd64.
Of course, the latter has corresponding V2SF/V2DF modes, but still...
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/65832] Inefficient vector construction
Date: Tue, 30 Oct 2018 10:17:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65832
Bug 65832 depends on bug 79745, which changed state.
Bug 79745 Summary: vec_init<> expander misses V2TImode with AVX and V2OImode and V2TImode with AVX512
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79745
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
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Subject: [Bug target/79745] vec_init<> expander misses V2TImode with AVX and V2OImode and V2TImode with AVX512
Date: Tue, 30 Oct 2018 10:17:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79745
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Testcase in comment#3 is fixed.
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Subject: [Bug c/87806] Option -Wall should warn about unused structs, typdefs, enums, etc
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87806
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Ulrich Windl from comment #0)
> Is it due to the fact that many #include files define a lot of such (and
> most of those are not used)?
Yes. You'd get a warning from every header unless every file that includes the
header uses *everything* in that header.
It should not be necessary to add pragmas to every header to avoid warnings
with -Wall, so this seems like a bad idea.
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Subject: [Bug c/87806] Option -Wall should warn about unused structs, typdefs, enums, etc
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--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Ulrich Windl from comment #0)
> BTW: With having option -Wmissing-field-initializers I could even imagine to
> warn about single fields that are never used.
Again, this seems like a bad idea. I shouldn't have to use every member of a
struct in every file to avoid warnings from -Wall.
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Subject: [Bug middle-end/65832] Inefficient vector construction
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |NEW
--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
description and comment#2 and comment#6 still hold. Once you enable -mavx2
things get better, also when avoiding the gpr<->xmm through memory path which
we enable with generic tuning.
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Subject: [Bug jit/87808] New: gcc_lib_dir is missing from libgccjit's search path
Date: Tue, 30 Oct 2018 10:31:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87808
Bug ID: 87808
Summary: gcc_lib_dir is missing from libgccjit's search path
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: jit
Assignee: dmalcolm at gcc dot gnu.org
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[forwarded from https://bugs.debian.org/911668]
building an example from the tutorial, then removing the driver and then
running it:
$ ./hello
ld: cannot find crtbeginS.o: No such file or directory
ld: cannot find -lgcc
ld: cannot find -lgcc_s
libgccjit.so: error: error invoking gcc driver
terminate called after throwing an instance of 'gccjit::error'
Aborted (core dumped)
these files are still installed but not found. However when explicitly telling
libgccjit where to look at, it works:
$ LIBRARY_PATH=/usr/lib/gcc/x86_64-linux-gnu/8 ./hello
hello world
And an strace reveals that this standard path for an installed location is
missing, however it tries to find it many other locations.
access("/home/doko/bin/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such file
or directory)
access("/usr/local/bin/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such file
or directory)
access("/usr/bin/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such file or
directory)
access("/bin/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such file or
directory)
access("/usr/local/games/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such
file or directory)
access("/usr/games/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such file or
directory)
getcwd("/home/doko", 4096) = 11
lstat("/home/doko/x86_64-linux-gnu-gcc-8", 0x7fff0ae9d5c0) = -1 ENOENT (No such
file or directory)
access("/home/doko/bin/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such file
or directory)
access("/usr/local/bin/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such file
or directory)
access("/usr/bin/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such file or
directory)
access("/bin/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such file or
directory)
access("/usr/local/games/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such
file or directory)
access("/usr/games/x86_64-linux-gnu-gcc-8", X_OK) = -1 ENOENT (No such file or
directory)
getcwd("/home/doko", 4096) = 11
lstat("/home/doko/x86_64-linux-gnu-gcc-8", 0x7fff0ae9d5c0) = -1 ENOENT (No such
file or directory)
access("../lib/gcc/x86_64-linux-gnu/8/", X_OK) = -1 ENOENT (No such file or
directory)
access("../lib/gcc/x86_64-linux-gnu/", X_OK) = -1 ENOENT (No such file or
directory)
access("../lib/gcc/", X_OK) = -1 ENOENT (No such file or directory)
access("../lib/", X_OK) = -1 ENOENT (No such file or directory)
access("../lib/gcc/x86_64-linux-gnu/8/", X_OK) = -1 ENOENT (No such file or
directory)
access("../lib/gcc/x86_64-linux-gnu/", X_OK) = -1 ENOENT (No such file or
directory)
access("../lib/gcc/", X_OK) = -1 ENOENT (No such file or directory)
access("../lib/", X_OK) = -1 ENOENT (No such file or directory)
access("../lib/gcc/x86_64-linux-gnu/8/specs", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/gcc/specs", R_OK) = -1 ENOENT (No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/8/specs", R_OK) = -1 ENOENT
(No such file or directory)
access("../x86_64-linux-gnu/lib/specs", R_OK) = -1 ENOENT (No such file or
directory)
access("/usr/lib/gcc/x86_64-linux-gnu/specs", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/gcc/x86_64-linux-gnu/8/", X_OK) = -1 ENOENT (No such file or
directory)
access("../lib/gcc/x86_64-linux-gnu/", X_OK) = -1 ENOENT (No such file or
directory)
access("../lib/gcc/", X_OK) = -1 ENOENT (No such file or directory)
stat("../lib/gcc/x86_64-linux-gnu/8/lto-wrapper", 0x7fff0ae9e750) = -1 ENOENT
(No such file or directory)
stat("../lib/gcc/x86_64-linux-gnu/lto-wrapper", 0x7fff0ae9e750) = -1 ENOENT (No
such file or directory)
stat("../lib/gcc/lto-wrapper", 0x7fff0ae9e750) = -1 ENOENT (No such file or
directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/8/lto-wrapper", 0x7fff0ae9e750)
= -1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/lto-wrapper", 0x7fff0ae9e750) =
-1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/lto-wrapper", 0x7fff0ae9e750) = -1 ENOENT (No
such file or directory)
openat(AT_FDCWD, "/tmp/ccL9yR72.o", O_RDWR|O_CREAT|O_EXCL, 0600) = 3
stat("../lib/gcc/x86_64-linux-gnu/8/x86_64-linux-gnu-as", 0x7fff0ae9e580) = -1
ENOENT (No such file or directory)
stat("../lib/gcc/x86_64-linux-gnu/8/as", 0x7fff0ae9e5d0) = -1 ENOENT (No such
file or directory)
stat("../lib/gcc/x86_64-linux-gnu/x86_64-linux-gnu-as", 0x7fff0ae9e580) = -1
ENOENT (No such file or directory)
stat("../lib/gcc/x86_64-linux-gnu/as", 0x7fff0ae9e5d0) = -1 ENOENT (No such
file or directory)
stat("../lib/gcc/x86_64-linux-gnu-as", 0x7fff0ae9e580) = -1 ENOENT (No such
file or directory)
stat("../lib/gcc/as", 0x7fff0ae9e5d0) = -1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/8/x86_64-linux-gnu-as",
0x7fff0ae9e580) = -1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/8/as", 0x7fff0ae9e5d0) = -1
ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/x86_64-linux-gnu-as",
0x7fff0ae9e580) = -1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/as", 0x7fff0ae9e5d0) = -1 ENOENT
(No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu-as", 0x7fff0ae9e580) = -1 ENOENT
(No such file or directory)
stat("../x86_64-linux-gnu/bin/as", 0x7fff0ae9e5d0) = -1 ENOENT (No such file or
directory)
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10950, si_uid=1000,
si_status=0, si_utime=0, si_stime=0} ---
stat("../lib/gcc/x86_64-linux-gnu/8/collect2", 0x7fff0ae9e720) = -1 ENOENT (No
such file or directory)
stat("../lib/gcc/x86_64-linux-gnu/collect2", 0x7fff0ae9e720) = -1 ENOENT (No
such file or directory)
stat("../lib/gcc/collect2", 0x7fff0ae9e720) = -1 ENOENT (No such file or
directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/8/collect2", 0x7fff0ae9e720) =
-1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/collect2", 0x7fff0ae9e720) = -1
ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/collect2", 0x7fff0ae9e720) = -1 ENOENT (No such
file or directory)
stat("../lib/gcc/x86_64-linux-gnu/8/.", 0x7fff0ae9e730) = -1 ENOENT (No such
file or directory)
stat("../lib/gcc/x86_64-linux-gnu/.", 0x7fff0ae9e730) = -1 ENOENT (No such file
or directory)
stat("../lib/gcc/.", 0x7fff0ae9e730) = -1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/8/.", 0x7fff0ae9e730) = -1
ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/.", 0x7fff0ae9e730) = -1 ENOENT
(No such file or directory)
stat("../x86_64-linux-gnu/bin/.", 0x7fff0ae9e730) = -1 ENOENT (No such file or
directory)
stat("../lib/gcc/x86_64-linux-gnu/8/.", 0x7fff0ae9e730) = -1 ENOENT (No such
file or directory)
stat("../lib/gcc/x86_64-linux-gnu/.", 0x7fff0ae9e730) = -1 ENOENT (No such file
or directory)
stat("../lib/gcc/.", 0x7fff0ae9e730) = -1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/lib/x86_64-linux-gnu/8/.", 0x7fff0ae9e730) = -1
ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/lib/x86_64-linux-gnu/.", 0x7fff0ae9e730) = -1 ENOENT
(No such file or directory)
stat("../x86_64-linux-gnu/lib/../lib/.", 0x7fff0ae9e730) = -1 ENOENT (No such
file or directory)
stat("../lib/x86_64-linux-gnu/8/.", 0x7fff0ae9e730) = -1 ENOENT (No such file
or directory)
stat("../lib/x86_64-linux-gnu/.", 0x7fff0ae9e730) = -1 ENOENT (No such file or
directory)
stat("../lib/../lib/.", 0x7fff0ae9e730) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64-linux-gnu/8/.", 0x7fff0ae9e730) = -1 ENOENT (No such file or
directory)
stat("/lib/x86_64-linux-gnu/.", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
stat("/lib/../lib/.", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat("/usr/lib/x86_64-linux-gnu/8/.", 0x7fff0ae9e730) = -1 ENOENT (No such file
or directory)
stat("/usr/lib/x86_64-linux-gnu/.", {st_mode=S_IFDIR|0755, st_size=12288, ...})
= 0
stat("/usr/lib/../lib/.", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat("../x86_64-linux-gnu/lib/.", 0x7fff0ae9e730) = -1 ENOENT (No such file or
directory)
stat("../lib/.", 0x7fff0ae9e730) = -1 ENOENT (No such file or directory)
stat("/lib/.", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat("/usr/lib/.", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
access("../lib/gcc/x86_64-linux-gnu/8/crti.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/gcc/x86_64-linux-gnu/crti.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../lib/gcc/crti.o", R_OK) = -1 ENOENT (No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/8/crti.o", R_OK) = -1 ENOENT
(No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/crti.o", R_OK) = -1 ENOENT (No
such file or directory)
access("../x86_64-linux-gnu/lib/../lib/crti.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/x86_64-linux-gnu/8/crti.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../lib/x86_64-linux-gnu/crti.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../lib/../lib/crti.o", R_OK) = -1 ENOENT (No such file or directory)
access("/lib/x86_64-linux-gnu/8/crti.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/lib/x86_64-linux-gnu/crti.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/lib/../lib/crti.o", R_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/x86_64-linux-gnu/8/crti.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/usr/lib/x86_64-linux-gnu/crti.o", R_OK) = 0
access("../lib/gcc/x86_64-linux-gnu/8/crtbeginS.o", R_OK) = -1 ENOENT (No such
file or directory)
access("../lib/gcc/x86_64-linux-gnu/crtbeginS.o", R_OK) = -1 ENOENT (No such
file or directory)
access("../lib/gcc/crtbeginS.o", R_OK) = -1 ENOENT (No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/8/crtbeginS.o", R_OK) = -1
ENOENT (No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/crtbeginS.o", R_OK) = -1
ENOENT (No such file or directory)
access("../x86_64-linux-gnu/lib/../lib/crtbeginS.o", R_OK) = -1 ENOENT (No such
file or directory)
access("../lib/x86_64-linux-gnu/8/crtbeginS.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/x86_64-linux-gnu/crtbeginS.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/../lib/crtbeginS.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/lib/x86_64-linux-gnu/8/crtbeginS.o", R_OK) = -1 ENOENT (No such file
or directory)
access("/lib/x86_64-linux-gnu/crtbeginS.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/lib/../lib/crtbeginS.o", R_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/x86_64-linux-gnu/8/crtbeginS.o", R_OK) = -1 ENOENT (No such
file or directory)
access("/usr/lib/x86_64-linux-gnu/crtbeginS.o", R_OK) = -1 ENOENT (No such file
or directory)
access("/usr/lib/../lib/crtbeginS.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../x86_64-linux-gnu/lib/crtbeginS.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/crtbeginS.o", R_OK) = -1 ENOENT (No such file or directory)
access("/lib/crtbeginS.o", R_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/crtbeginS.o", R_OK) = -1 ENOENT (No such file or directory)
stat("../lib/gcc/x86_64-linux-gnu/8/.", 0x7fff0ae9da00) = -1 ENOENT (No such
file or directory)
stat("../lib/gcc/x86_64-linux-gnu/.", 0x7fff0ae9da00) = -1 ENOENT (No such file
or directory)
stat("../lib/gcc/.", 0x7fff0ae9da00) = -1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/lib/x86_64-linux-gnu/8/.", 0x7fff0ae9da00) = -1
ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/lib/x86_64-linux-gnu/.", 0x7fff0ae9da00) = -1 ENOENT
(No such file or directory)
stat("../x86_64-linux-gnu/lib/../lib/.", 0x7fff0ae9da00) = -1 ENOENT (No such
file or directory)
stat("../lib/x86_64-linux-gnu/8/.", 0x7fff0ae9da00) = -1 ENOENT (No such file
or directory)
stat("../lib/x86_64-linux-gnu/.", 0x7fff0ae9da00) = -1 ENOENT (No such file or
directory)
stat("../lib/../lib/.", 0x7fff0ae9da00) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64-linux-gnu/8/.", 0x7fff0ae9da00) = -1 ENOENT (No such file or
directory)
stat("/lib/x86_64-linux-gnu/.", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
stat("/lib/../lib/.", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat("/usr/lib/x86_64-linux-gnu/8/.", 0x7fff0ae9da00) = -1 ENOENT (No such file
or directory)
stat("/usr/lib/x86_64-linux-gnu/.", {st_mode=S_IFDIR|0755, st_size=12288, ...})
= 0
stat("/usr/lib/../lib/.", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat("../x86_64-linux-gnu/lib/.", 0x7fff0ae9da00) = -1 ENOENT (No such file or
directory)
stat("../lib/.", 0x7fff0ae9da00) = -1 ENOENT (No such file or directory)
access("../lib/gcc/x86_64-linux-gnu/8/crtendS.o", R_OK) = -1 ENOENT (No such
file or directory)
access("../lib/gcc/x86_64-linux-gnu/crtendS.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/gcc/crtendS.o", R_OK) = -1 ENOENT (No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/8/crtendS.o", R_OK) = -1
ENOENT (No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/crtendS.o", R_OK) = -1 ENOENT
(No such file or directory)
access("../x86_64-linux-gnu/lib/../lib/crtendS.o", R_OK) = -1 ENOENT (No such
file or directory)
access("../lib/x86_64-linux-gnu/8/crtendS.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/x86_64-linux-gnu/crtendS.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../lib/../lib/crtendS.o", R_OK) = -1 ENOENT (No such file or directory)
access("/lib/x86_64-linux-gnu/8/crtendS.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/lib/x86_64-linux-gnu/crtendS.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/lib/../lib/crtendS.o", R_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/x86_64-linux-gnu/8/crtendS.o", R_OK) = -1 ENOENT (No such file
or directory)
access("/usr/lib/x86_64-linux-gnu/crtendS.o", R_OK) = -1 ENOENT (No such file
or directory)
access("/usr/lib/../lib/crtendS.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../x86_64-linux-gnu/lib/crtendS.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../lib/crtendS.o", R_OK) = -1 ENOENT (No such file or directory)
access("/lib/crtendS.o", R_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/crtendS.o", R_OK) = -1 ENOENT (No such file or directory)
access("../lib/gcc/x86_64-linux-gnu/8/crtn.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/gcc/x86_64-linux-gnu/crtn.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../lib/gcc/crtn.o", R_OK) = -1 ENOENT (No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/8/crtn.o", R_OK) = -1 ENOENT
(No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/crtn.o", R_OK) = -1 ENOENT (No
such file or directory)
access("../x86_64-linux-gnu/lib/../lib/crtn.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/x86_64-linux-gnu/8/crtn.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../lib/x86_64-linux-gnu/crtn.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/usr/lib/crtendS.o", R_OK) = -1 ENOENT (No such file or directory)
access("../lib/gcc/x86_64-linux-gnu/8/crtn.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/gcc/x86_64-linux-gnu/crtn.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../lib/gcc/crtn.o", R_OK) = -1 ENOENT (No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/8/crtn.o", R_OK) = -1 ENOENT
(No such file or directory)
access("../x86_64-linux-gnu/lib/x86_64-linux-gnu/crtn.o", R_OK) = -1 ENOENT (No
such file or directory)
access("../x86_64-linux-gnu/lib/../lib/crtn.o", R_OK) = -1 ENOENT (No such file
or directory)
access("../lib/x86_64-linux-gnu/8/crtn.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../lib/x86_64-linux-gnu/crtn.o", R_OK) = -1 ENOENT (No such file or
directory)
access("../lib/../lib/crtn.o", R_OK) = -1 ENOENT (No such file or directory)
access("/lib/x86_64-linux-gnu/8/crtn.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/lib/x86_64-linux-gnu/crtn.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/lib/../lib/crtn.o", R_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/x86_64-linux-gnu/8/crtn.o", R_OK) = -1 ENOENT (No such file or
directory)
access("/usr/lib/x86_64-linux-gnu/crtn.o", R_OK) = 0
stat("../lib/gcc/x86_64-linux-gnu/8/x86_64-linux-gnu-ld", 0x7fff0ae9d9c0) = -1
ENOENT (No such file or directory)
stat("../lib/gcc/x86_64-linux-gnu/8/ld", 0x7fff0ae9da10) = -1 ENOENT (No such
file or directory)
stat("../lib/gcc/x86_64-linux-gnu/x86_64-linux-gnu-ld", 0x7fff0ae9d9c0) = -1
ENOENT (No such file or directory)
stat("../lib/gcc/x86_64-linux-gnu/ld", 0x7fff0ae9da10) = -1 ENOENT (No such
file or directory)
stat("../lib/gcc/x86_64-linux-gnu-ld", 0x7fff0ae9d9c0) = -1 ENOENT (No such
file or directory)
stat("../lib/gcc/ld", 0x7fff0ae9da10) = -1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/8/x86_64-linux-gnu-ld",
0x7fff0ae9d9c0) = -1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/8/ld", 0x7fff0ae9da10) = -1
ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/x86_64-linux-gnu-ld",
0x7fff0ae9d9c0) = -1 ENOENT (No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu/ld", 0x7fff0ae9da10) = -1 ENOENT
(No such file or directory)
stat("../x86_64-linux-gnu/bin/x86_64-linux-gnu-ld", 0x7fff0ae9d9c0) = -1 ENOENT
(No such file or directory)
stat("../x86_64-linux-gnu/bin/ld", 0x7fff0ae9da10) = -1 ENOENT (No such file or
directory)
ld: cannot find crtbeginS.o: No such file or directory
ld: cannot find -lgcc
ld: cannot find -lgcc_s
>From gcc-bugs-return-619600-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 10:40:13 2018
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From: "doko at debian dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug jit/87808] gcc_lib_dir is missing from libgccjit's search path
Date: Tue, 30 Oct 2018 10:40:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: jit
X-Bugzilla-Version: 9.0
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Message-ID: <bug-87808-4-l9YIPtz7Fo@http.gcc.gnu.org/bugzilla/>
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87808
--- Comment #1 from Matthias Klose <doko at debian dot org> ---
it looks like the code can run without the external driver, but it cannot find
the needed files in the install location.
>From gcc-bugs-return-619601-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 10:46:45 2018
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/58497] SLP vectorizes identical operations
Date: Tue, 30 Oct 2018 10:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58497
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |NEW
Assignee|rguenth at gcc dot gnu.org |unassigned at gcc dot gnu.org
--- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> ---
We now generate
g:
.LFB0:
.cfi_startproc
pxor %xmm1, %xmm1
addl $1, %edi
movaps %xmm1, %xmm0
cvtsi2ss %edi, %xmm0
shufps $36, %xmm0, %xmm1
movaps %xmm1, %xmm0
cvtsi2ss %edi, %xmm0
shufps $196, %xmm0, %xmm1
movaps %xmm1, %xmm0
unpcklps %xmm1, %xmm0
cvtsi2ss %edi, %xmm0
shufps $225, %xmm1, %xmm0
cvtsi2ss %edi, %xmm0
ret
or with SSE4
g:
.LFB0:
.cfi_startproc
addl $1, %edi
pxor %xmm1, %xmm1
pxor %xmm0, %xmm0
cvtsi2ss %edi, %xmm1
insertps $48, %xmm1, %xmm0
insertps $32, %xmm1, %xmm0
insertps $16, %xmm1, %xmm0
movss %xmm1, %xmm0
ret
on GIMPLE we end up with
g (int x)
{
float4 W;
int _1;
float _2;
<bb 2> [local count: 1073741824]:
_1 = x_3(D) + 1;
_2 = (float) _1;
W_6 = BIT_INSERT_EXPR <W_5(D), _2, 96 (32 bits)>;
W_7 = BIT_INSERT_EXPR <W_6, _2, 64 (32 bits)>;
W_8 = BIT_INSERT_EXPR <W_7, _2, 32 (32 bits)>;
W_9 = BIT_INSERT_EXPR <W_8, _2, 0 (32 bits)>;
return W_9;
so we miss to recognize the splat. The GIMPLE looks like this very early
already (update-address-taken + forwprop). SLP vectorization
doesn't treat a BIT_INSERT_EXPR "reduction" as sink but we could probably
pattern-match a VEC_DUPLICATE_EXPR for the above.
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Subject: [Bug tree-optimization/85283] Generates 20 lines of assembly while only one assembly instruction is enough.
Date: Tue, 30 Oct 2018 10:53:00 -0000
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
We can vectorize a variant with doubles but that results in awful code because
the ABI isn't known. The float variant now looks like the following before
vectorization:
_1 = a.x;
_2 = b.x;
_3 = _1 + _2;
_4 = a.y;
_5 = b.y;
_6 = _4 + _5;
MEM[(struct *)&D.1915] = _3;
MEM[(struct *)&D.1915 + 4B] = _6;
return D.1915;
here the issue is again that we do not know the ABI details plus MMX
is disabled and the vectorizer expects 4 floats for vectorization
(that is, it cannot vectorize using partial vector regs - the ABI may
specify the upper half of %xmm0 is zero for example).
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--- Comment #8 from sameerad at gcc dot gnu.org ---
Author: sameerad
Date: Tue Oct 30 10:59:37 2018
New Revision: 265618
URL: https://gcc.gnu.org/viewcvs?rev=265618&root=gcc&view=rev
Log:
Fixes bug 87330 by invoking df_note_add_problem to recompute REG_DEAD and
REG_UNUSED notes before analysis.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/aarch64/falkor-tag-collision-avoidance.c
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Subject: [Bug fortran/87804] Omp simd loop with sin calls not vectorized when inside omp parallel region and the sin parameter uses value from shared array
Date: Tue, 30 Oct 2018 11:07:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-30
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. The issue is two-fold, first the array 'b' has unknown stride
because IPA cannot look through __builtin_GOMP_parallel, second dsin ()
ends up as clobbering memory - you probably have to mark it as pure,
then we end up with a vectorized variant:
.L4:
movdqa .LC2(%rip), %xmm3
movdqa 48(%rsp), %xmm1
addq $32, %r14
paddd %xmm0, %xmm3
paddd %xmm0, %xmm1
movaps %xmm3, (%rsp)
cvtdq2pd %xmm1, %xmm0
movaps %xmm1, 32(%rsp)
call _ZGVbN2v_sin
movdqa 32(%rsp), %xmm1
movaps %xmm0, 16(%rsp)
pshufd $238, %xmm1, %xmm0
cvtdq2pd %xmm0, %xmm0
call _ZGVbN2v_sin
movapd 16(%rsp), %xmm2
movaps %xmm0, -16(%r14)
movdqa (%rsp), %xmm0
movaps %xmm2, -32(%r14)
cmpq %r14, %rbx
jne .L4
program test
interface
pure function DSIN(x) bind(C, NAME="sin")
use,intrinsic :: iso_c_binding
...
Does that fix the issue?
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Subject: [Bug c++/58372] internal compiler error: ix86_compute_frame_layout
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H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |xuepeng.guo at intel dot com
--- Comment #19 from H.J. Lu <hjl.tools at gmail dot com> ---
Xuepeng, we investigated stack realignment on Windows when working on
stack realignment. Can we take another look?
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Subject: [Bug tree-optimization/87800] [9 Regression] CPU2006 416.gamess failed to build with LTO
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug tree-optimization/87800] [9 Regression] CPU2006 416.gamess failed to build with LTO
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Oct 30 11:27:32 2018
New Revision: 265619
URL: https://gcc.gnu.org/viewcvs?rev=265619&root=gcc&view=rev
Log:
2018-10-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/87800
* tree-vect-slp.c (vect_build_slp_tree_2): Reject any
non-induction or reduction PHIs.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-vect-slp.c
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Subject: [Bug fortran/87804] Omp simd loop with sin calls not vectorized when inside omp parallel region and the sin parameter uses value from shared array
Date: Tue, 30 Oct 2018 11:31:00 -0000
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--- Comment #2 from Pavel OndraÄka <pavel.ondracka at gmail dot com> ---
Wow, yeah that works, thank you so much.
It's not very clear from your explanation if this is a bug or not after all...
Feel free to close the bug if the omission of pure was a mistake on my end.
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Subject: [Bug bootstrap/87747] [9 regression] Bootstrap failure if using gcc-4.6 as stage1 compiler
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--- Comment #5 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
Author: rearnsha
Date: Tue Oct 30 11:33:24 2018
New Revision: 265620
URL: https://gcc.gnu.org/viewcvs?rev=265620&root=gcc&view=rev
Log:
Don't allow the pool allocator to be configured to allocate zero-sized objects
PR bootstrap/87747 would have been significantly easier to track down if
the pool allocator had faulted an attempt to configure it to allocate
zero-sized objects. Instead, this slipped through and we later hit
memory corruption when the assumed size turned out to be different to
the configured size.
While, theoretically, there might be a use case for this, it seems
unlikely to me that GCC would have such a use. So this patch adds a
checking assert that the object size is not zero.
* alloc-pool.h (base_pool_allocator <TBlockAllocator>::initialize):
Assert that the allocation size is not zero.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/alloc-pool.h
>From gcc-bugs-return-619610-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 11:53:08 2018
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From: "ostash at ostash dot kiev.ua" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/87809] New: Can't create empty std::optional<std::vector<int, CustomAlloc>>
Date: Tue, 30 Oct 2018 11:53:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87809
Bug ID: 87809
Summary: Can't create empty std::optional<std::vector<int,
CustomAlloc>>
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: ostash at ostash dot kiev.ua
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Hello,
Following code snippet:
#include <optional>
#include <vector>
class Storage;
template <typename T>
class MyAlloc
{
public:
using value_type = T;
value_type* allocate(size_t n);
void deallocate(value_type* p, size_t n);
MyAlloc(Storage& storage) noexcept;
};
void test()
{
std::optional<std::vector<int, MyAlloc<int>>> opt;
}
compiles with GCC8, but fails with GCC9 trunk:
In file included from
/opt/compiler-explorer/gcc-trunk-20181028/include/c++/9.0.0/utility:68,
from
/opt/compiler-explorer/gcc-trunk-20181028/include/c++/9.0.0/optional:36,
from <source>:1:
/opt/compiler-explorer/gcc-trunk-20181028/include/c++/9.0.0/bits/stl_vector.h:
In instantiation of 'std::_Vector_base<_Tp,
_Alloc>::_Vector_impl::_Vector_impl() [with _Tp = int; _Alloc = MyAlloc<int>]':
/opt/compiler-explorer/gcc-trunk-20181028/include/c++/9.0.0/type_traits:925:12:
required from 'struct std::is_constructible<std::vector<int, MyAlloc<int> >
>'
/opt/compiler-explorer/gcc-trunk-20181028/include/c++/9.0.0/type_traits:2881:25:
required from 'constexpr const bool std::is_constructible_v<std::vector<int,
MyAlloc<int> > >'
/opt/compiler-explorer/gcc-trunk-20181028/include/c++/9.0.0/optional:715:66:
required by substitution of 'template<class ... _Args, typename
std::enable_if<is_constructible_v<std::vector<int, MyAlloc<int> >, _Args&&
...>, bool>::type <anonymous> > constexpr std::_Optional_base<std::vector<int,
MyAlloc<int> >, false, false>::_Optional_base(std::in_place_t, _Args&& ...)
[with _Args = {}; typename std::enable_if<is_constructible_v<std::vector<int,
MyAlloc<int> >, _Args&& ...>, bool>::type <anonymous> = <missing>]'
<source>:20:50: required from here
/opt/compiler-explorer/gcc-trunk-20181028/include/c++/9.0.0/bits/stl_vector.h:128:17:
error: no matching function for call to 'MyAlloc<int>::MyAlloc()'
128 | _Vector_impl() _GLIBCXX_NOEXCEPT_IF( noexcept(_Tp_alloc_type()) )
| ^~~~~~~~~~~~~~~~~~~~
<source>:15:3: note: candidate: 'MyAlloc<T>::MyAlloc(Storage&) [with T = int]'
15 | MyAlloc(Storage& storage) noexcept;
| ^~~~~~~
<source>:15:3: note: candidate expects 1 argument, 0 provided
<source>:7:7: note: candidate: 'constexpr MyAlloc<int>::MyAlloc(const
MyAlloc<int>&)'
7 | class MyAlloc
| ^~~~~~~
<source>:7:7: note: candidate expects 1 argument, 0 provided
<source>:7:7: note: candidate: 'constexpr
MyAlloc<int>::MyAlloc(MyAlloc<int>&&)'
<source>:7:7: note: candidate expects 1 argument, 0 provided
Compiler returned: 1
>From gcc-bugs-return-619611-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 11:56:58 2018
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Subject: [Bug c++/58372] internal compiler error: ix86_compute_frame_layout
Date: Tue, 30 Oct 2018 11:56:00 -0000
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Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |ubizjak at gmail dot com
--- Comment #20 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 44928
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44928&action=edit
Proposed patch
It turned out that functions, called directly through emit_library_call (as the
above testcase, which builds call to _Unwind_SjLj_Register from
sjlj_emit_function_enter) miss a whole lot of stack realignmnet setup. There is
an update to crtl->preferred_stack_boundary, but several updates for
SUPPORTS_STACK_ALIGNMENT targets are missing, including eventual DRAP setup.
Attached patch fixes the path through emit_library_call.
Can someone please test the patch on SJLJ target?
>From gcc-bugs-return-619612-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 12:00:04 2018
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From: "doko at debian dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug go/87810] New: go-test.exp needs an update for non-existing test exceptions
Date: Tue, 30 Oct 2018 12:00:00 -0000
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go-test.exp needs an update for non-existing test exceptions, it mentions meny
tests/files which don't exist anymore.
>From gcc-bugs-return-619613-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 12:01:44 2018
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Subject: [Bug c++/58372] internal compiler error: ix86_compute_frame_layout
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--- Comment #21 from xuepeng guo <xuepeng.guo at intel dot com> ---
Thanks for fix. I am glad to help to test it out.
>From gcc-bugs-return-619615-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 12:18:44 2018
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Subject: [Bug c/87811] [9 Regression] ICE with __builtin_expect_with_probability
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Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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Last reconfirmed| |2018-10-30
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Ever confirmed|0 |1
>From gcc-bugs-return-619614-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 12:18:31 2018
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Subject: [Bug c/87811] New: [9 Regression] ICE with __builtin_expect_with_probability
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Bug ID: 87811
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__builtin_expect_with_probability
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void bar (void);
void
foo (int i, double d)
{
if (__builtin_expect_with_probability (i, 0, d))
bar ();
}
ICEs at -O2:
internal compiler error: tree check: expected real_cst, have mult_expr in
expr_expected_value_1, at predict.c:2471
in both C and C++.
Either we need to early (+ in documentation) require that the last argument is
a floating point constant (e.g. in builtins.c folding error on the last arg not
being a REAL_CST), or we need to document what it means if the last argument is
a variable, whether we ignore the hint altogether or what else we do.
>From gcc-bugs-return-619616-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 12:23:46 2018
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Subject: [Bug other/87802] [9 regression] g++.dg/vect/slp-pr87105.cc fails starting with r265522
Date: Tue, 30 Oct 2018 12:23:00 -0000
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Bah. Can you please attach preprocessed source and provide command-line flags?
A simple cc1plus cross isn't enough it seems and I do not have a cross glibc
to build a full cross.
>From gcc-bugs-return-619617-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 12:24:53 2018
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Subject: [Bug testsuite/87802] [9 regression] g++.dg/vect/slp-pr87105.cc fails starting with r265522
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|other |testsuite
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Testsuite issue for sure.
>From gcc-bugs-return-619618-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 12:26:24 2018
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Subject: [Bug fortran/87804] Omp simd loop with sin calls not vectorized when inside omp parallel region and the sin parameter uses value from shared array
Date: Tue, 30 Oct 2018 12:26:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
.
>From gcc-bugs-return-619619-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 12:27:42 2018
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/87811] [9 Regression] ICE with __builtin_expect_with_probability
Date: Tue, 30 Oct 2018 12:27:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |marxin at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |marxin at gcc dot gnu.org
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Mine.
>From gcc-bugs-return-619620-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 12:47:29 2018
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Subject: [Bug libstdc++/87809] [9 Regression] Can't create empty std::optional<std::vector<int, CustomAlloc>>
Date: Tue, 30 Oct 2018 12:47:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Known to work| |8.2.0
Keywords| |rejects-valid
Last reconfirmed| |2018-10-30
Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org
Ever confirmed|0 |1
Summary|Can't create empty |[9 Regression] Can't create
|std::optional<std::vector<i |empty
|nt, CustomAlloc>> |std::optional<std::vector<i
| |nt, CustomAlloc>>
Target Milestone|--- |9.0
Known to fail| |9.0
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
mine
>From gcc-bugs-return-619621-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 12:57:10 2018
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Subject: [Bug libstdc++/87809] [9 Regression] Can't create empty std::optional<std::vector<int, CustomAlloc>>
Date: Tue, 30 Oct 2018 12:57:00 -0000
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--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It affects other containers too:
#include <vector>
#include <forward_list>
#include <list>
template <typename T>
struct Alloc
{
using value_type = T;
T* allocate(unsigned n);
void deallocate(T* p, unsigned n);
Alloc(int) { }
template<typename U>
Alloc(const Alloc<U>&) { }
};
template<typename T, typename U>
bool operator==(Alloc<T>, Alloc<U>) { return true; }
template<typename T, typename U>
bool operator!=(Alloc<T>, Alloc<U>) { return false; }
constexpr bool b
= std::is_default_constructible<std::vector<int, Alloc<int>>>::value;
constexpr bool c
= std::is_default_constructible<std::vector<bool, Alloc<bool>>>::value;
constexpr bool d
= std::is_default_constructible<std::forward_list<bool, Alloc<bool>>>::value;
constexpr bool e
= std::is_default_constructible<std::list<bool, Alloc<bool>>>::value;
>From gcc-bugs-return-619622-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 13:01:15 2018
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Subject: [Bug libstdc++/87809] [8/9 Regression] Can't create empty std::optional<std::vector<int, CustomAlloc>>
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work|8.2.0 |7.3.0
Target Milestone|9.0 |8.3
Summary|[9 Regression] Can't create |[8/9 Regression] Can't
|empty |create empty
|std::optional<std::vector<i |std::optional<std::vector<i
|nt, CustomAlloc>> |nt, CustomAlloc>>
Known to fail| |8.2.0
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The vector<bool,...>, list and forward_list cases already fail with GCC 8 as
well.
>From gcc-bugs-return-619623-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 13:49:35 2018
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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87812] New: X86-64 Vector __m256 return ABI needs clarification (discrepancy between implementations).
Date: Tue, 30 Oct 2018 13:49:00 -0000
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Bug ID: 87812
Summary: X86-64 Vector __m256 return ABI needs clarification
(discrepancy between implementations).
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
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For a processor that supports SSE, but not AVX.
the following code:
typedef int __attribute__((mode(QI))) qi;
typedef qi __attribute__((vector_size (32))) v32qi;
v32qi foo (int x)
{
v32qi y = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
return y;
}
produces a warning " warning: AVX vector return without AVX enabled changes the
ABI [-Wpsabi]â€.
so - the question is what is the resultant ABI in the changed case (since _m256
is supported for such processors)
====
Looking at the psABI v1.0
* pp24 Returning of Values
The returning of values is done according to the following algorithm:
• Classify the return type with the classification algorithm.
…
• If the class is SSE, the next available vector register of the
sequence %xmm0, %xmm1 is used.
• If the class is SSEUP, the eight byte is returned in the next
available eightbyte chunk of the last used vector register.
...
* classification algorithm : pp20
• Arguments of type __m256 are split into four eightbyte chunks. The
least significant one belongs to class SSE and all the others to class SSEUP.
• Arguments of type __m512 are split into eight eightbyte chunks. The
least significant one belongs to class SSE and all the others to class SSEUP.
* footnote on pp21
12 The post merger clean up described later ensures that, for the processors
that do not support the __m256 type, if the size of an object is larger than
two eightbytes and the first eightbyte is not SSE or any other eightbyte is not
SSEUP, it still has class MEMORY.
This in turn ensures that for processors that do support the __m256 type, if
the size of an object is four eightbytes and the first eightbyte is SSE and all
other eightbytes are SSEUP, it can be passed in a register. This also applies
to the __m512 type. That is for processors that support the __m512 type, if the
size of an object is eight eightbytes and the first eightbyte is SSE and all
other eightbytes are SSEUP, it can be passed in a register, otherwise, it will
be passed in memory.
---
However : the case where the processor does *not* support __m256 but the first
eightbyte *is* SSE and the following eighbytes *are* SSEUP is not clarified.
The intent for SSE seems clear - use a reg
The intent for following SSEUP is less clear.
Nevertheless, it seems to imply that the intent for processors with SSE that
the __m256 (and __m512) returns should be passed in xmm0:1(:3, maybe).
figure 3.4 pp23 does not clarify xmm* use for vector return at all - only
mentioning floating point.
===== status
In any event, GCC passes the vec32 return in memory,
LLVM conversely passes it in xmm0:1 (at least for the versions I’ve tried).
which leads to an ABI discrepancy when GCC is used to build code on systems
based on LLVM.
Please could the X86 maintainers clarify the intent (and maybe consider
enhancing the footnote classification notes to make things clearer)?
- and then we can figure out how to deal with the systems that are already
implemented - and how to move forward.
(as an aside, in any event, it seems inefficient to pass through memory when at
least xmm0:1 are already set aside for return value use).
>From gcc-bugs-return-619624-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 13:51:02 2018
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Subject: [Bug c++/58372] internal compiler error: ix86_compute_frame_layout
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--- Comment #22 from xuepeng guo <xuepeng.guo at intel dot com> ---
(In reply to Uroš Bizjak from comment #20)
> Created attachment 44928 [details]
> Proposed patch
>
> It turned out that functions, called directly through emit_library_call (as
> the above testcase, which builds call to _Unwind_SjLj_Register from
> sjlj_emit_function_enter) miss a whole lot of stack realignmnet setup. There
> is an update to crtl->preferred_stack_boundary, but several updates for
> SUPPORTS_STACK_ALIGNMENT targets are missing, including eventual DRAP setup.
>
> Attached patch fixes the path through emit_library_call.
>
> Can someone please test the patch on SJLJ target?
On an x86_64 Linux platform, I simply configured gcc with command:
../gcc/configure --enable-sjlj-exceptions
Then with Uroš's patch, the gcc bootstrap has no problem and the case can be
successfully compiled. I am doing the gcc regression test to make sure there is
no regression with Uroš's patch, it will take some time to finish. I am also
attempting to cross-build for i686-w64-mingw32 to verify for Comment #14.
If I am missing something, please let me know. Thanks very much.
>From gcc-bugs-return-619625-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 13:58:42 2018
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Subject: [Bug testsuite/87802] [9 regression] g++.dg/vect/slp-pr87105.cc fails starting with r265522
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--- Comment #4 from seurer at gcc dot gnu.org ---
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assembler
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Subject: [Bug testsuite/87802] [9 regression] g++.dg/vect/slp-pr87105.cc fails starting with r265522
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Subject: [Bug testsuite/87802] [9 regression] g++.dg/vect/slp-pr87105.cc fails starting with r265522
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preprocessed source
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Subject: [Bug testsuite/87802] [9 regression] g++.dg/vect/slp-pr87105.cc fails starting with r265522
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87802
--- Comment #7 from seurer at gcc dot gnu.org ---
Various output files attached and here's a run with -v so you can see all the
options:
seurer@granola:~/gcc/build/gcc-test$
/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../xg++ -v
-B/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../
/home/seurer/gcc/gcc-test/gcc/testsuite/g++.dg/vect/slp-pr87105.cc
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -nostdinc++
-I/home/seurer/gcc/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/powerpc64-unknown-linux-gnu
-I/home/seurer/gcc/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include
-I/home/seurer/gcc/gcc-test/libstdc++-v3/libsupc++
-I/home/seurer/gcc/gcc-test/libstdc++-v3/include/backward
-I/home/seurer/gcc/gcc-test/libstdc++-v3/testsuite/util -fmessage-length=0
-std=c++14 -O2 -ftree-vectorize -fno-vect-cost-model -maltivec -mvsx
-mno-allow-movmisalign -fdump-tree-slp-details -ffast-math -E -o ./slp-pr8105.i
Reading specs from
/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../specs
COLLECT_GCC=/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../xg++
Target: powerpc64-unknown-linux-gnu
Configured with: /home/seurer/gcc/gcc-test/configure
--prefix=/home/seurer/gcc/install/gcc-test --enable-languages=c,fortran,c++
--with-cpu=power7 --disable-bootstrap --disable-multilib
--with-as=/home/seurer/binutils/install/binutils-2.26/bin/as
--with-ld=/home/seurer/binutils/install/binutils-2.26/bin/ld
Thread model: posix
gcc version 9.0.0 20181026 (experimental) [trunk revision 265522] (GCC)
COLLECT_GCC_OPTIONS='-fdiagnostics-color=never' '-v' '-B'
'/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../'
'-fno-diagnostics-show-caret' '-fno-diagnostics-show-line-numbers'
'-nostdinc++' '-I'
'/home/seurer/gcc/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/powerpc64-unknown-linux-gnu'
'-I'
'/home/seurer/gcc/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include'
'-I' '/home/seurer/gcc/gcc-test/libstdc++-v3/libsupc++' '-I'
'/home/seurer/gcc/gcc-test/libstdc++-v3/include/backward' '-I'
'/home/seurer/gcc/gcc-test/libstdc++-v3/testsuite/util' '-fmessage-length=0'
'-std=c++14' '-O2' '-ftree-vectorize' '-fvect-cost-model=unlimited' '-maltivec'
'-mvsx' '-mno-allow-movmisalign' '-fdump-tree-slp-details' '-ffast-math' '-E'
'-o' './slp-pr8105.i' '-shared-libgcc' '-mcpu=power7'
/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../cc1plus -E -quiet
-nostdinc++ -v -I
/home/seurer/gcc/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/powerpc64-unknown-linux-gnu
-I
/home/seurer/gcc/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include
-I /home/seurer/gcc/gcc-test/libstdc++-v3/libsupc++ -I
/home/seurer/gcc/gcc-test/libstdc++-v3/include/backward -I
/home/seurer/gcc/gcc-test/libstdc++-v3/testsuite/util -iprefix
/home/seurer/gcc/build/gcc-test/gcc/../lib/gcc/powerpc64-unknown-linux-gnu/9.0.0/
-isystem /home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../include
-isystem /home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../include-fixed
-D_GNU_SOURCE -D__unix__ -D__gnu_linux__ -D__linux__ -Asystem=linux
-Asystem=unix -Asystem=posix
/home/seurer/gcc/gcc-test/gcc/testsuite/g++.dg/vect/slp-pr87105.cc -o
./slp-pr8105.i -maltivec -mvsx -mno-allow-movmisalign -mcpu=power7 -std=c++14
-fdiagnostics-color=never -fno-diagnostics-show-caret
-fno-diagnostics-show-line-numbers -fmessage-length=0 -ftree-vectorize
-fvect-cost-model=unlimited -fdump-tree-slp-details -ffast-math -O2
ignoring nonexistent directory
"/home/seurer/gcc/build/gcc-test/gcc/../lib/gcc/powerpc64-unknown-linux-gnu/9.0.0/include"
ignoring nonexistent directory
"/home/seurer/gcc/build/gcc-test/gcc/../lib/gcc/powerpc64-unknown-linux-gnu/9.0.0/include-fixed"
ignoring nonexistent directory
"/home/seurer/gcc/build/gcc-test/gcc/../lib/gcc/powerpc64-unknown-linux-gnu/9.0.0/../../../../powerpc64-unknown-linux-gnu/include"
ignoring nonexistent directory
"/home/seurer/gcc/build/gcc-test/gcc/../lib/gcc/../../lib/gcc/powerpc64-unknown-linux-gnu/9.0.0/include"
ignoring nonexistent directory
"/home/seurer/gcc/build/gcc-test/gcc/../lib/gcc/../../include"
ignoring nonexistent directory
"/home/seurer/gcc/build/gcc-test/gcc/../lib/gcc/../../lib/gcc/powerpc64-unknown-linux-gnu/9.0.0/include-fixed"
ignoring nonexistent directory
"/home/seurer/gcc/build/gcc-test/gcc/../lib/gcc/../../lib/gcc/powerpc64-unknown-linux-gnu/9.0.0/../../../../powerpc64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/home/seurer/gcc/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/powerpc64-unknown-linux-gnu
/home/seurer/gcc/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include
/home/seurer/gcc/gcc-test/libstdc++-v3/libsupc++
/home/seurer/gcc/gcc-test/libstdc++-v3/include/backward
/home/seurer/gcc/gcc-test/libstdc++-v3/testsuite/util
/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../include
/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../include-fixed
/usr/local/include
/usr/include
End of search list.
COMPILER_PATH=/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../
LIBRARY_PATH=/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../:/lib/../lib64/:/usr/lib/../lib64/:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-fdiagnostics-color=never' '-v' '-B'
'/home/seurer/gcc/build/gcc-test/gcc/testsuite/g++/../../'
'-fno-diagnostics-show-caret' '-fno-diagnostics-show-line-numbers'
'-nostdinc++' '-I'
'/home/seurer/gcc/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include/powerpc64-unknown-linux-gnu'
'-I'
'/home/seurer/gcc/build/gcc-test/powerpc64-unknown-linux-gnu/libstdc++-v3/include'
'-I' '/home/seurer/gcc/gcc-test/libstdc++-v3/libsupc++' '-I'
'/home/seurer/gcc/gcc-test/libstdc++-v3/include/backward' '-I'
'/home/seurer/gcc/gcc-test/libstdc++-v3/testsuite/util' '-fmessage-length=0'
'-std=c++14' '-O2' '-ftree-vectorize' '-fvect-cost-model=unlimited' '-maltivec'
'-mvsx' '-mno-allow-movmisalign' '-fdump-tree-slp-details' '-ffast-math' '-E'
'-o' './slp-pr8105.i' '-shared-libgcc' '-mcpu=power7'
>From gcc-bugs-return-619629-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 14:08:11 2018
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From: "aldyh at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/87813] New: sprintf pass calling evrp at -O0 and setting global ranges which affect strnlen expansion
Date: Tue, 30 Oct 2018 14:08:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87813
Bug ID: 87813
Summary: sprintf pass calling evrp at -O0 and setting global
ranges which affect strnlen expansion
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: aldyh at gcc dot gnu.org
Target Milestone: ---
For gcc.c-torture/execute/builtins/strnlen.c at -Og, the -fprintf-return-value
pass does not change the IL, but is setting global range information, which in
turn, is affecting builtin strnlen expansion.
This is because AFAICT the sprintf pass calls evrp on the entire IL regardless
of its need:
edge
sprintf_dom_walker::before_dom_children (basic_block bb)
{
evrp_range_analyzer.enter (bb);
for (gimple_stmt_iterator si = gsi_start_bb (bb); !gsi_end_p (si); )
{
/* Iterate over statements, looking for function calls. */
gimple *stmt = gsi_stmt (si);
/* First record ranges generated by this statement. */
evrp_range_analyzer.record_ranges_from_stmt (stmt, false);
etc.
For example:
+Visiting statement:
+# USE = anything
+_1 = strnlen ("", r_0_3_17);
Notice this is the sprintf optimization pass, not the strlen pass. Setting
global ranges for these "peeks" into strnlen arguments causes changes in the
behavior of expand_builtin_strnlen():
wide_int min, max;
enum value_range_kind rng = get_range_info (bound, &min, &max);
if (rng != VR_RANGE)
return NULL_RTX;
etc.
This is similar to the discussion I started here, where Martin correctly
pointed out that it wasn't just warnings but printf optimizations which were
touching global range information:
https://gcc.gnu.org/ml/gcc-patches/2018-07/msg00420.html
Further down thread, Jeff said he'd volunteer to fix this. I'm just
documenting it here, so we don't forget about it.
Meta question-- do we want to be running a full evrp at -O0 (or -Og in this
case)?
Thanks folks.
>From gcc-bugs-return-619630-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 14:10:14 2018
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From: "aldyh at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/87813] sprintf pass calling evrp at -O0 and setting global ranges which affect strnlen expansion
Date: Tue, 30 Oct 2018 14:10:00 -0000
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Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |amacleod at redhat dot com,
| |law at gcc dot gnu.org,
| |msebor at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Folks, I'm CCing you here as per the discussion started here:
https://gcc.gnu.org/ml/gcc-patches/2018-07/msg00420.html
As usual, thanks for your glorious feedback.
>From gcc-bugs-return-619631-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 14:12:59 2018
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From: "law at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/87813] sprintf pass calling evrp at -O0 and setting global ranges which affect strnlen expansion
Date: Tue, 30 Oct 2018 14:12:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87813
Jeffrey A. Law <law at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-30
CC| |law at redhat dot com
Assignee|unassigned at gcc dot gnu.org |law at redhat dot com
Ever confirmed|0 |1
--- Comment #2 from Jeffrey A. Law <law at redhat dot com> ---
I thought I already had a bug for this... It's a known problem that I plan to
fix during the bugfixing stage.
>From gcc-bugs-return-619632-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 14:19:18 2018
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug testsuite/87802] [9 regression] g++.dg/vect/slp-pr87105.cc fails starting with r265522
Date: Tue, 30 Oct 2018 14:19:00 -0000
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--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ah, ok.
/home/seurer/gcc/gcc-test/gcc/testsuite/g++.dg/vect/slp-pr87105.cc:98:1:
missed: not vectorized: bad data alignment in basic block.
looks like with the flags we do not support unaligned accesses. Removing
the -mno-allow-movmisalign flag fixes this.
Does the following work? If so please go ahead and install it.
Index: gcc/testsuite/g++.dg/vect/slp-pr87105.cc
===================================================================
--- gcc/testsuite/g++.dg/vect/slp-pr87105.cc (revision 265619)
+++ gcc/testsuite/g++.dg/vect/slp-pr87105.cc (working copy)
@@ -99,7 +99,7 @@ void quadBoundingBoxA(const Point bez[3]
// We should have if-converted everything down to straight-line code
// { dg-final { scan-tree-dump-times "<bb \[0-9\]+>" 1 "slp2" } }
-// { dg-final { scan-tree-dump-times "basic block part vectorized" 1 "slp2" }
}
+// { dg-final { scan-tree-dump-times "basic block part vectorized" 1 "slp2" {
xfail { { ! vect_element_align } && { ! vect_hw_misalign } } } } }
// It's a bit awkward to detect that all stores were vectorized but the
// following more or less does the trick
-// { dg-final { scan-tree-dump "vect_iftmp\[^\r\m\]* = MIN" "slp2" } }
+// { dg-final { scan-tree-dump "vect_iftmp\[^\r\m\]* = MIN" "slp2" { xfail { {
! vect_element_align } && { ! vect_hw_misalign } } } } }
>From gcc-bugs-return-619633-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 14:21:27 2018
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Subject: [Bug middle-end/87813] sprintf pass calling evrp at -O0 and setting global ranges which affect strnlen expansion
Date: Tue, 30 Oct 2018 14:21:00 -0000
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Why is the sprintf pass (-fprintf-return-value) even enabled at -O0?
>From gcc-bugs-return-619634-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 14:25:33 2018
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Subject: [Bug middle-end/87813] sprintf pass calling evrp at -O0 and setting global ranges which affect strnlen expansion
Date: Tue, 30 Oct 2018 14:25:00 -0000
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--- Comment #4 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #3)
> Why is the sprintf pass (-fprintf-return-value) even enabled at -O0?
Well, at -Og, but isn't that kinda sort-of the same thing?
>From gcc-bugs-return-619635-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 14:40:27 2018
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From: "seurer at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug testsuite/87802] [9 regression] g++.dg/vect/slp-pr87105.cc fails starting with r265522
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--- Comment #9 from seurer at gcc dot gnu.org ---
Yes, it works with that patch.
>From gcc-bugs-return-619636-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 14:43:41 2018
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Subject: [Bug target/87812] X86-64 Vector __m256 return ABI needs clarification (discrepancy between implementations).
Date: Tue, 30 Oct 2018 14:43:00 -0000
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--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
Without AVX, GCC treats
typedef qi __attribute__((vector_size (32))) v32qi;
as a type of 32 bytes, which is passed in memory. Clang does
# clang -S -msse2 x.c -O2
...
movaps .LCPI0_0(%rip), %xmm0 # xmm0 =
[48,49,50,51,52,53,54,55,56,57,97,98,99,100,101,102]
movaps %xmm0, %xmm1
retq
# clang -S -msse2 x.c -O2 -m32
...
movaps .LCPI0_0, %xmm0 # xmm0 =
[48,49,50,51,52,53,54,55,56,57,97,98,99,100,101,102]
movaps %xmm0, %xmm1
retl
They look very odd to me. You either pass it as a vector or you don't.
You can't have it both ways.
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Subject: [Bug libstdc++/87784] A bug in tr2::dynamic_bitset::find_first
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--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Tue Oct 30 14:49:32 2018
New Revision: 265625
URL: https://gcc.gnu.org/viewcvs?rev=265625&root=gcc&view=rev
Log:
PR libstdc++/87784 fix dynamic_bitset::push_back
Previously the _M_Nb member was incremented before calling
_M_unchecked_set which meant that the bit being set was out of bounds.
It either set the wrong bit in an allocated word, or accessed beyond the
end of the allocated memory in the _M_w vector. The fix for the bug is
to update the _M_Nb member after using it as an index.
As an optimisation, when a new block needs to be appended the call to
_M_unchecked_set can be avoided by appending a block with the least
significant bit already set to the desired value.
PR libstdc++/87784
* include/tr2/dynamic_bitset (dynamic_bitset::push_back): When there
are no unused bits in the last block, append a new block with the
right value so the bit doesn't need to be set. Only increment size
after setting the new bit, not before.
* testsuite/tr2/dynamic_bitset/pr87784.cc: New test.
Added:
trunk/libstdc++-v3/testsuite/tr2/dynamic_bitset/pr87784.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/tr2/dynamic_bitset
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Subject: [Bug libstdc++/87809] [8/9 Regression] Can't create empty std::optional<std::vector<int, CustomAlloc>>
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--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Tue Oct 30 14:49:43 2018
New Revision: 265626
URL: https://gcc.gnu.org/viewcvs?rev=265626&root=gcc&view=rev
Log:
PR libstdc++/87809 avoid invalid expressions in exception specifications
If the allocator isn't default constructible then checking if the
default constructor throws in an exception specification makes the
declaration invalid. Use the type trait instead.
PR libstdc++/87809
* include/bits/forward_list.h (_Fwd_list_impl::_Fwd_list_impl()): Use
trait in exception-specification instead of possibly invalid
expression.
* include/bits/stl_bvector.h (_Bvector_impl::_Bvector_impl()):
Likewise.
* include/bits/stl_list.h (_List_impl::_List_impl()): Likewise.
* include/bits/stl_vector.h (_Vector_impl::_Vector_impl()): Likewise.
* testsuite/23_containers/forward_list/cons/87809.cc: New test.
* testsuite/23_containers/list/cons/87809.cc: New test.
* testsuite/23_containers/vector/bool/cons/87809.cc: New test.
* testsuite/23_containers/vector/cons/87809.cc: New test.
Added:
trunk/libstdc++-v3/testsuite/23_containers/forward_list/cons/87809.cc
trunk/libstdc++-v3/testsuite/23_containers/list/cons/87809.cc
trunk/libstdc++-v3/testsuite/23_containers/vector/bool/cons/87809.cc
trunk/libstdc++-v3/testsuite/23_containers/vector/cons/87809.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/forward_list.h
trunk/libstdc++-v3/include/bits/stl_bvector.h
trunk/libstdc++-v3/include/bits/stl_list.h
trunk/libstdc++-v3/include/bits/stl_vector.h
>From gcc-bugs-return-619639-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 14:53:40 2018
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Subject: [Bug libstdc++/87784] A bug in tr2::dynamic_bitset::find_first
Date: Tue, 30 Oct 2018 14:53:00 -0000
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |9.0
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for GCC 9.
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Subject: [Bug target/85593] [7/8/9 Regression] GCC on ARM allocates R3 for local variable when calling naked function with O2 optimizations enabled
Date: Tue, 30 Oct 2018 14:56:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> ---
So somehow the consensus was that IPA-RA needs to be told what to do about
naked functions. IPA-RA is new in GCC 5. I'm not sure whether there already
exists a hook for targets to use.
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Subject: [Bug fortran/85855] [7/8/9 Regression] (Maybe) uninitialized descriptor fields of an allocatable array component of a function result
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Subject: [Bug c/85870] [7/8/9 Regression][LTO1] ICE in linemap_line_start, at libcpp/line-map.c:794
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Subject: [Bug rtl-optimization/85925] [7/8/9 regression] Mis-compilation at -02, masking with 257 goes wrong in combine
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>From gcc-bugs-return-619644-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 15:01:18 2018
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Subject: [Bug c++/86485] [7/8/9 Regression] "anonymous" maybe-uninitialized false positive with ternary operator
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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[Bug 24639] [meta-bug] bug to track all Wuninitialized issues
>From gcc-bugs-return-619646-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 15:02:40 2018
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Subject: [Bug c++/86569] [7/8 Regression] -Wnonnull-compare affects code generation since r233684
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Subject: [Bug target/86487] [7/8/9 Regression] insn does not satisfy its constraints on arm big-endian
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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Subject: [Bug middle-end/86575] [7/8/9 Regression] -Wimplicit-fallthrough affects code generation
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Subject: [Bug c++/86669] [7/8/9 regression] Complete object constructor clone omits length for a c++11 braced initialiser
Date: Tue, 30 Oct 2018 15:04:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
It sounds like invalid tree sharing.
>From gcc-bugs-return-619649-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 15:05:21 2018
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Subject: [Bug c++/86823] [7/8/9 Regression] private member template struct/class is publicly accessible
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Subject: [Bug target/87812] X86-64 Vector __m256 return ABI needs clarification (discrepancy between implementations).
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Iain Sandoe <iains at gcc dot gnu.org> changed:
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--- Comment #2 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to H.J. Lu from comment #1)
> Without AVX, GCC treats
>
> typedef qi __attribute__((vector_size (32))) v32qi;
>
> as a type of 32 bytes, which is passed in memory. Clang does
>
> # clang -S -msse2 x.c -O2
> ...
> movaps .LCPI0_0(%rip), %xmm0 # xmm0 =
> [48,49,50,51,52,53,54,55,56,57,97,98,99,100,101,102]
> movaps %xmm0, %xmm1
> retq
> # clang -S -msse2 x.c -O2 -m32
> ...
> movaps .LCPI0_0, %xmm0 # xmm0 =
> [48,49,50,51,52,53,54,55,56,57,97,98,99,100,101,102]
> movaps %xmm0, %xmm1
> retl
>
> They look very odd to me. You either pass it as a vector or you don't.
> You can't have it both ways.
(when there's no native size support on the hardware) breaking objects into
pieces to pass in registers is IMO a reasonable ABI approach.
However, I am not here to argue for one or the other - what's needed is a clear
statement of the "correct" ABI ad then :
* a bug filed against the implementation(s) which don't comply.
* a plan to support the mismatch on systems "in the wild".
I don't currently have access to icc (or other compilers) so no idea what they
do.
FWIW clang -mno-sse passes in memory as per the GCC code.
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Subject: [Bug c++/86905] [7/8/9 Regression] g++ ICE on valid code: verify_cgraph_node failed
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Subject: [Bug tree-optimization/86944] [7/8/9 Regression] ICE in vectorizable_store, at tree-vect-stmts.c:6878 on aarch64
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Subject: [Bug tree-optimization/86988] [7 Regression] ICE: tree check: expected integer_cst, have var_decl in get_len, at tree.h:5563
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Subject: [Bug rtl-optimization/87047] [7/8/9 Regression] performance regression because of if-conversion
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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Subject: [Bug tree-optimization/86944] [7/8/9 Regression] ICE in vectorizable_store, at tree-vect-stmts.c:6878 on aarch64
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
I cannot reproduce this on trunk.
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Subject: [Bug c++/87072] [7 Regression] g++6.2.0 false warning: array subscript is above array bounds, with misleading line number
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Subject: [Bug c++/87145] [7/8/9 Regression] Implicit conversion to scoped enum fails: "error: taking address of temporary/rvalue"
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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From: "law at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libitm/86293] unused variable left over (used in assert) when building with -g0 -DNDEBUG [-Werror=unused-variable]
Date: Tue, 30 Oct 2018 15:15:00 -0000
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Jeffrey A. Law <law at redhat dot com> changed:
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CC| |law at redhat dot com
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--- Comment #1 from Jeffrey A. Law <law at redhat dot com> ---
Fixed on the trunk.
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Subject: [Bug c++/87148] [7/8/9 Regression] backward compatibility issue to take char [] as incomplete type
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Thus wontfix.
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Subject: [Bug libstdc++/87809] [8/9 Regression] Can't create empty std::optional<std::vector<int, CustomAlloc>>
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for GCC 8.3 and 9.x
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Subject: [Bug libstdc++/87809] [8/9 Regression] Can't create empty std::optional<std::vector<int, CustomAlloc>>
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
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--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for GCC 8.3 and 9.x
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Tue Oct 30 15:15:56 2018
New Revision: 265629
URL: https://gcc.gnu.org/viewcvs?rev=265629&root=gcc&view=rev
Log:
PR libstdc++/87809 avoid invalid expressions in exception specifications
If the allocator isn't default constructible then checking if the
default constructor throws in an exception specification makes the
declaration invalid. Use the type trait instead.
Backport from mainline
2018-10-30 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/87809
* include/bits/forward_list.h (_Fwd_list_impl::_Fwd_list_impl()): Use
trait in exception-specification instead of possibly invalid
expression.
* include/bits/stl_bvector.h (_Bvector_impl::_Bvector_impl()):
Likewise.
* include/bits/stl_list.h (_List_impl::_List_impl()): Likewise.
* testsuite/23_containers/forward_list/cons/87809.cc: New test.
* testsuite/23_containers/list/cons/87809.cc: New test.
* testsuite/23_containers/vector/bool/cons/87809.cc: New test.
* testsuite/23_containers/vector/cons/87809.cc: New test.
Added:
branches/gcc-8-branch/libstdc++-v3/testsuite/23_containers/forward_list/cons/87809.cc
branches/gcc-8-branch/libstdc++-v3/testsuite/23_containers/list/cons/87809.cc
branches/gcc-8-branch/libstdc++-v3/testsuite/23_containers/vector/bool/cons/87809.cc
branches/gcc-8-branch/libstdc++-v3/testsuite/23_containers/vector/cons/87809.cc
Modified:
branches/gcc-8-branch/libstdc++-v3/ChangeLog
branches/gcc-8-branch/libstdc++-v3/include/bits/forward_list.h
branches/gcc-8-branch/libstdc++-v3/include/bits/stl_bvector.h
branches/gcc-8-branch/libstdc++-v3/include/bits/stl_list.h
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Subject: [Bug fortran/87430] [7/8/9 Regression] ICE in fortran/trans-types.c:1157
Date: Tue, 30 Oct 2018 15:18:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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Subject: [Bug rtl-optimization/87246] [7/8/9 Regression] ICE in decompose_normal_address, at rtlanal.c:6379
Date: Tue, 30 Oct 2018 15:18:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|ice-on-invalid-code |ice-on-valid-code
Priority|P3 |P2
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-30
Known to work| |5.5.0
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.
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Subject: [Bug c++/87814] New: [9 Regression] ICE in in tsubst_copy, at cp/pt.c:15962 with range-v3
Date: Tue, 30 Oct 2018 15:20:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87814
Bug ID: 87814
Summary: [9 Regression] ICE in in tsubst_copy, at cp/pt.c:15962
with range-v3
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: Casey at Carter dot net
Target Milestone: ---
Created attachment 44932
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44932&action=edit
Preprocessed repro
This program (preprocessed repro attached as repro.i.gz):
#include <range/v3/iterator_range.hpp>
#include <range/v3/view/join.hpp>
#include <range/v3/view/transform.hpp>
int main() {
using namespace ranges;
auto f = [](int) { return iterator_range<int*>(); };
join_view<transform_view<int(&)[42], decltype(f)>> rng;
(void) rng.begin();
}
ICEs in tsubst_copy while instantiating a variadic inherited constructor
template that performs a "double" pack expansion, defined around line 43341 in
the repro.
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Subject: [Bug target/87812] X86-64 Vector __m256 return ABI needs clarification (discrepancy between implementations).
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87812
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
Without AVX, v32qi should be passed the same way before AVX was
added to compiler. For example,
[hjl@gnu-cfl-1 tmp]$ cat z.c
typedef int __attribute__((mode(SI))) si;
typedef si __attribute__((vector_size (128))) v;
v
foo (int x)
{
v y = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
return y;
}
[hjl@gnu-cfl-1 tmp]$ gcc -S -O2 z.c
[hjl@gnu-cfl-1 tmp]$ cat z.s
.file "z.c"
.text
.p2align 4,,15
.globl foo
.type foo, @function
foo:
.LFB0:
.cfi_startproc
movq %rdi, %rax
movl $48, (%rdi)
movl $49, 4(%rdi)
movl $50, 8(%rdi)
movl $51, 12(%rdi)
movl $52, 16(%rdi)
movl $53, 20(%rdi)
movl $54, 24(%rdi)
movl $55, 28(%rdi)
movl $56, 32(%rdi)
movl $57, 36(%rdi)
movl $97, 40(%rdi)
movl $98, 44(%rdi)
movl $99, 48(%rdi)
movl $100, 52(%rdi)
movl $101, 56(%rdi)
movl $102, 60(%rdi)
movl $48, 64(%rdi)
movl $49, 68(%rdi)
movl $50, 72(%rdi)
movl $51, 76(%rdi)
movl $52, 80(%rdi)
movl $53, 84(%rdi)
movl $54, 88(%rdi)
movl $55, 92(%rdi)
movl $56, 96(%rdi)
movl $57, 100(%rdi)
movl $97, 104(%rdi)
movl $98, 108(%rdi)
movl $99, 112(%rdi)
movl $100, 116(%rdi)
movl $101, 120(%rdi)
movl $102, 124(%rdi)
ret
.cfi_endproc
.LFE0:
.size foo, .-foo
.ident "GCC: (GNU) 8.2.1 20181011 (Red Hat 8.2.1-4)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-cfl-1 tmp]$
If there were AVX1024, GCC would pass y in vector register. When AVX1024
were disabled, GCC would pass y in memory and issue an ABI change warning.
So LLVM is wrong.
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Subject: [Bug c++/87541] [7/8/9 Regression] ICE using a constant decl as an attribute alloc_size argument
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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Subject: [Bug c++/87148] [7/8/9 Regression] backward compatibility issue to take char [] as incomplete type
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|RESOLVED |NEW
Resolution|WONTFIX |---
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
We still reject the example in comment 4, and should accept it. Reopening.
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Subject: [Bug c++/87542] [7/8/9 Regression] bogus error on attribute format with a named constant argument
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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Subject: [Bug middle-end/87647] [7/8 Regression] ICE on valid code in decode_addr_const, at varasm.c:2958
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Priority|P3 |P2
Summary|[7/8/9 Regression] ICE on |[7/8 Regression] ICE on
|valid code in |valid code in
|decode_addr_const, at |decode_addr_const, at
|varasm.c:2958 |varasm.c:2958
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
fixed on trunk
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Subject: [Bug target/87702] [7/8/9 Regression] Segfault in glibc if compiled with -march=amdfam10 -O2 (x86)
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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Subject: [Bug libstdc++/87787] [9 Regression] runtime error: null pointer passed as argument 2, which is declared to never be null
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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Subject: [Bug tree-optimization/86944] [7/8/9 Regression] ICE in vectorizable_store, at tree-vect-stmts.c:6878 on aarch64
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |needs-bisection
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |marxin at gcc dot gnu.org
--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Then let me bisect that.
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Subject: [Bug middle-end/87813] sprintf pass calling evrp at -O0 and setting global ranges which affect strnlen expansion
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--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
The sprintf pass doesn't do any optimization at -O0 but it still runs to
diagnose the subset of mistakes that are detectable even without optimization.
For instance, the buffer overflow due to the off-by-one error in the following
is diagnosed at -O0:
char a[8];
void f (void)
{
sprintf (a, "%s/%s", "dir", "file");
}
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Subject: [Bug target/87330] ICE in scan_rtx_reg, at regrename.c:1097
Date: Tue, 30 Oct 2018 15:35:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87330
Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
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--- Comment #9 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
Fixed then ?
>From gcc-bugs-return-619675-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 15:37:25 2018
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Subject: [Bug target/87812] X86-64 Vector __m256 return ABI needs clarification (discrepancy between implementations).
Date: Tue, 30 Oct 2018 15:37:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87812
--- Comment #4 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to H.J. Lu from comment #3)
> Without AVX, v32qi should be passed the same way before AVX was
> added to compiler. For example,
>
> If there were AVX1024, GCC would pass y in vector register. When AVX1024
> were disabled, GCC would pass y in memory and issue an ABI change warning.
> So LLVM is wrong.
----
As an ABI co-author, perhaps you would be kind enough to file a bug there then?
---
For current affected systems (at least freeBSD 10+ and Darwin 11+ I'd say) we
will have to figure some work-around.
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Subject: [Bug target/87563] [9 regression ] ICE with -march=armv8-a+sve
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Renlin Li <renlin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
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--- Comment #5 from Renlin Li <renlin at gcc dot gnu.org> ---
fix committed as r265172. Close it.
>From gcc-bugs-return-619677-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 15:50:27 2018
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Subject: [Bug libstdc++/87809] [8/9 Regression] Can't create empty std::optional<std::vector<int, CustomAlloc>>
Date: Tue, 30 Oct 2018 15:50:00 -0000
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--- Comment #7 from Viktor Ostashevskyi <ostash at ostash dot kiev.ua> ---
I confirm that fix works on real codebase with GCC9.
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Subject: [Bug target/87815] New: ICE in DSE with -march=armv8-a+sve while trying to replace load with previously stored value
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87815
Bug ID: 87815
Summary: ICE in DSE with -march=armv8-a+sve while trying to
replace load with previously stored value
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
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Reporter: renlin at gcc dot gnu.org
Target Milestone: ---
The following test case ICEs with:
-march=armv8.2-a+sve -O3 and -Ofast
int a, b, d;
short e;
void f() {
for (int i = 0; i < 8; i++) {
e = b >= 2 ?: a >> b;
d = e && b;
}
}
test.c: In function 'f':
test.c:8:1: internal compiler error: in smallest_mode_for_size, at
stor-layout.c:355
8 | }
| ^
0x1048b4a smallest_mode_for_size(poly_int<2u, unsigned long>, mode_class)
src/gcc/gcc/stor-layout.c:355
0xa1a14e smallest_int_mode_for_size(poly_int<2u, unsigned long>)
src/gcc/gcc/machmode.h:838
0x1a93f86 find_shift_sequence
src/gcc/gcc/dse.c:1704
0x1a9497b get_stored_val
src/gcc/gcc/dse.c:1850
0x1a94dae replace_read
src/gcc/gcc/dse.c:1955
0x1a958db check_mem_read_rtx
src/gcc/gcc/dse.c:2187
0x1a95dfc check_mem_read_use
src/gcc/gcc/dse.c:2293
0xfd0fd9 note_uses(rtx_def**, void (*)(rtx_def**, void*), void*)
src/gcc/gcc/rtlanal.c:2005
0x1a9660d scan_insn
src/gcc/gcc/dse.c:2401
0x1a972f3 dse_step1
src/gcc/gcc/dse.c:2659
0x1a9968b rest_of_handle_dse
src/gcc/gcc/dse.c:3576
0x1a9981e execute
src/gcc/gcc/dse.c:3634
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
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Subject: [Bug target/87815] ICE in DSE with -march=armv8-a+sve while trying to replace load with previously stored value
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Renlin Li <renlin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Target| |aarch64-none-elf
Version|8.0 |9.0
Target Milestone|--- |9.0
Known to fail| |9.0
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Subject: [Bug target/87815] ICE in DSE with -march=armv8-a+sve while trying to replace load with previously stored value
Date: Tue, 30 Oct 2018 15:59:00 -0000
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Renlin Li <renlin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2018-10-30
Ever confirmed|0 |1
>From gcc-bugs-return-619681-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 16:01:53 2018
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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/87812] X86-64 Vector __m256 return ABI needs clarification (discrepancy between implementations).
Date: Tue, 30 Oct 2018 16:01:00 -0000
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H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
See Also| |https://bugs.llvm.org/show_
| |bug.cgi?id=39501
Resolution|--- |INVALID
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Iain Sandoe from comment #4)
>
> As an ABI co-author, perhaps you would be kind enough to file a bug there
> then?
>
Done:
https://bugs.llvm.org/show_bug.cgi?id=39501
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Subject: [Bug tree-optimization/86944] [7/8 Regression] ICE in vectorizable_store, at tree-vect-stmts.c:6878 on aarch64
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86944
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |NEW
Known to work| |9.0
Assignee|marxin at gcc dot gnu.org |unassigned at gcc dot gnu.org
Summary|[7/8/9 Regression] ICE in |[7/8 Regression] ICE in
|vectorizable_store, at |vectorizable_store, at
|tree-vect-stmts.c:6878 on |tree-vect-stmts.c:6878 on
|aarch64 |aarch64
Known to fail|9.0 |
--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed on trunk with r264439.
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Subject: [Bug d/87816] New: D runtime fails to build on aarch64
Date: Tue, 30 Oct 2018 16:29:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87816
Bug ID: 87816
Summary: D runtime fails to build on aarch64
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: build
Severity: normal
Priority: P3
Component: d
Assignee: ibuclaw at gdcproject dot org
Reporter: schwab@linux-m68k.org
Target Milestone: ---
Target: aarch64-*-*
/usr/aarch64-suse-linux/bin/ld: .libs/libgdruntime_la-threadasm.o: in function
`fiber_switchContext':
/opt/gcc/test/Build/aarch64-suse-linux/libphobos/libdruntime/../../../../libphobos/libdruntime/core/threadasm.S:492:
multiple definition of `fiber_switchContext';
core/.libs/thread.o:/opt/gcc/test/Build/aarch64-suse-linux/libphobos/libdruntime/../../../../libphobos/libdruntime/core/thread.d:3862:
first defined here
collect2: error: ld returned 1 exit status
make[4]: *** [Makefile:1620: libgdruntime.la] Error 1
../../../../libphobos/src/std/math.d:5342:44: error: undefined identifier
‘cont’, did you mean template ‘conj(Num)(Num z) if (is(Num* : const(cfloat*))
|| is(Num* : const(cdouble*)) || is(Num* : const(creal*)))’?
5342 | "mrs %0, FPCR;" : "=r" cont;
| ^
../../../../libphobos/src/std/math.d:5344:24: error: undefined identifier
‘cont’, did you mean template ‘conj(Num)(Num z) if (is(Num* : const(cfloat*))
|| is(Num* : const(cdouble*)) || is(Num* : const(creal*)))’?
5344 | return cont;
| ^
make[4]: *** [Makefile:1791: std/math.lo] Error 1
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Subject: [Bug c/87795] Excessive alignment permitted for functions and labels
Date: Tue, 30 Oct 2018 16:34:00 -0000
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--- Comment #6 from pkoning at gcc dot gnu.org ---
(In reply to Joel Sherrill from comment #4)
> I added myself as a CC because I want to see if these become errors or
> warnings. For core parts of RTEMS, I can see wanting these to be errors
> since it indicates we did something in core OS code that did not achieve the
> desired results. But in application code, it might not be as well considered
> or necessary.
Interesting point. The current case that is rejected (alignment of variables)
is an error, so for consistency I'd say the other cases should do likewise.
If there is a desire to make too-large alignment into a warning, that might be
better handled as a separate issue. It could be a switch of some sort. If
changes are made, they should apply consistently to alignment of all kinds.
>From gcc-bugs-return-619685-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 16:36:36 2018
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Subject: [Bug d/87816] D runtime fails to build on aarch64
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--- Comment #1 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
I've received patches here for aarch64.
https://github.com/D-Programming-GDC/GDC/pull/744
I'll push them in once tested.
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Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
Date: Tue, 30 Oct 2018 16:47:00 -0000
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--- Comment #3 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
Thanks, I'm just going to try building it now.
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Subject: [Bug target/87330] ICE in scan_rtx_reg, at regrename.c:1097
Date: Tue, 30 Oct 2018 16:49:00 -0000
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--- Comment #10 from sameerad at gcc dot gnu.org ---
Yes, it can be marked as fixed. Thanks!
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Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
Date: Tue, 30 Oct 2018 16:51:00 -0000
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--- Comment #4 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Iain Buclaw from comment #3)
> Thanks, I'm just going to try building it now.
didn't get much further - kinda looks like something isn't working right with
Version() such that the OSX/Darwin versions of the section refs are not getting
used - hopefully, it's just config stuff and will be obvious to you.
>From gcc-bugs-return-619689-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 17:16:19 2018
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From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/87489] Spurious -Wnonnull warning
Date: Tue, 30 Oct 2018 17:16:00 -0000
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--- Comment #6 from Martin Sebor <msebor at gcc dot gnu.org> ---
(In reply to Andrew Church from comment #5)
> Simpler testcase (based on the testcase in bug 87041):
This is a case of the warning being issued by the front end well before dead
code elimination has had a chance to run. The fix is conceptually simple:
remove the warning from the front-end and enhance the middle-end implementation
to handle the cases it doesn't handle, such as:
int foo (int i, const char *s)
{
return strcmp (i ? s : 0, "");
}
But the middle-end implementation of -Wnonnull only runs with optimization
enabled (just after CCP) so the change would have the effect of a large number
of false negatives at -O0. I'm not sure handling the constant test case in
comment #5 is worth it.
>From gcc-bugs-return-619690-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 17:17:40 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
Date: Tue, 30 Oct 2018 17:17:00 -0000
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--- Comment #5 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
(In reply to Iain Sandoe from comment #4)
> (In reply to Iain Buclaw from comment #3)
> > Thanks, I'm just going to try building it now.
>
> didn't get much further - kinda looks like something isn't working right
> with Version() such that the OSX/Darwin versions of the section refs are not
> getting used - hopefully, it's just config stuff and will be obvious to you.
It may be that there's no predefined version conditions for OSX, right.
In the meantime, I guess this will need to be done just to get builders passing
again. So there's no time pressure on myself.
--- a/configure.ac
+++ b/configure.ac
@@ -674,6 +674,30 @@ if test "${ENABLE_LIBSTDCXX}" = "default" ; then
esac
fi
+# Disable the D frontend on systems where it is known to not work.
+case "${target}" in
+*-*-darwin* | *-*-cygwin* | *-*-mingw*)
+ unsupported_languages="$unsupported_languages d"
+ ;;
+esac
+
+# Disable libphobos on unsupported systems.
+# For testing, you can override this with --enable-libphobos.
+if test -d ${srcdir}/libphobos; then
+ if test x$enable_libphobos = x; then
+ AC_MSG_CHECKING([for libphobos support])
+ if (srcdir=${srcdir}/libphobos; \
+ . ${srcdir}/configure.tgt; \
+ test -n "$UNSUPPORTED")
+ then
+ AC_MSG_RESULT([no])
+ noconfigdirs="$noconfigdirs target-libphobos"
+ else
+ AC_MSG_RESULT([yes])
+ fi
+ fi
+fi
+
# Disable Fortran for some systems.
case "${target}" in
mmix-*-*)
>From gcc-bugs-return-619691-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 17:20:44 2018
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Subject: [Bug fortran/86626] ICE in get_array_charlen at gcc/fortran/trans-array.c:6870
Date: Tue, 30 Oct 2018 17:20:00 -0000
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G. Steinmetz <gscfq@t-online.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gscfq@t-online.de
--- Comment #3 from G. Steinmetz <gscfq@t-online.de> ---
Reduction :
$ cat z1.f90
module m
interface fun
module procedure f
end interface
contains
function f(b) result(z)
character(*) :: b(:)
character(len(b)) :: z(size(b))
z = b
end
elemental function g(a,b) result(c)
character(*), intent(in) :: a, b
character(len(a)+len(b)) :: c
c = a // b
end
end
program p
use m
print *, len(g(['abc'], '_'//fun(['xyz'])))
end
$ gfortran-9-20181028 -c z1.f90
z1.f90:19:0:
19 | print *, len(g(['abc'], '_'//fun(['xyz'])))
|
internal compiler error: Segmentation fault
0xb1f6cf crash_signal
../../gcc/toplev.c:325
0x6c2a40 get_array_charlen
../../gcc/fortran/trans-array.c:6956
0x6c2b17 get_array_charlen
../../gcc/fortran/trans-array.c:6919
0x6d001c gfc_conv_expr_descriptor(gfc_se*, gfc_expr*)
../../gcc/fortran/trans-array.c:7293
0x714b5c gfc_conv_intrinsic_len
../../gcc/fortran/trans-intrinsic.c:6624
0x714b5c gfc_conv_intrinsic_function(gfc_se*, gfc_expr*)
../../gcc/fortran/trans-intrinsic.c:9628
0x6f8b94 gfc_conv_function_expr
../../gcc/fortran/trans-expr.c:6864
0x6ed2ea gfc_conv_expr(gfc_se*, gfc_expr*)
../../gcc/fortran/trans-expr.c:7998
0x6ed482 gfc_conv_expr_op
../../gcc/fortran/trans-expr.c:3430
0x6ed482 gfc_conv_expr(gfc_se*, gfc_expr*)
../../gcc/fortran/trans-expr.c:7994
0x6ef34a gfc_apply_interface_mapping(gfc_interface_mapping*, gfc_se*,
gfc_expr*)
../../gcc/fortran/trans-expr.c:4410
0x6c2a97 get_array_charlen
../../gcc/fortran/trans-array.c:6963
0x6cfa5c gfc_conv_expr_descriptor(gfc_se*, gfc_expr*)
../../gcc/fortran/trans-array.c:7232
0x714b5c gfc_conv_intrinsic_len
../../gcc/fortran/trans-intrinsic.c:6624
0x714b5c gfc_conv_intrinsic_function(gfc_se*, gfc_expr*)
../../gcc/fortran/trans-intrinsic.c:9628
0x6f8b94 gfc_conv_function_expr
../../gcc/fortran/trans-expr.c:6864
0x6ed2ea gfc_conv_expr(gfc_se*, gfc_expr*)
../../gcc/fortran/trans-expr.c:7998
0x6f2c95 gfc_conv_expr_reference(gfc_se*, gfc_expr*, bool)
../../gcc/fortran/trans-expr.c:8143
0x7198e7 gfc_trans_transfer(gfc_code*)
../../gcc/fortran/trans-io.c:2584
0x6bea57 trans_code
../../gcc/fortran/trans.c:2038
>From gcc-bugs-return-619692-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 17:22:16 2018
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Subject: [Bug fortran/86626] ICE in get_array_charlen at gcc/fortran/trans-array.c:6870
Date: Tue, 30 Oct 2018 17:22:00 -0000
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--- Comment #4 from G. Steinmetz <gscfq@t-online.de> ---
Exploring variations of the last print statement in z1.f90,
where "fun" is the interface and "f" is the function/procedure :
z1: print *, len(g(['abc'], '_'//fun(['xyz']))) ! ICE
z2: print *, g(['abc'], '_'//fun(['xyz'])) ! ok
z3: print *, len(g(['abc'], '_'//f(['xyz']))) ! ok
z4: print *, len(g(['abc'], fun(['xyz']))) ! ok
Output of z2: abc_xyz
Output of z3: 7
Output of z4: 6
The problematic part is the concatenation in '_'//fun(),
the resulting len() gets corrupted.
>From gcc-bugs-return-619693-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 17:29:40 2018
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Subject: [Bug target/87702] [7/8/9 Regression] Segfault in glibc if compiled with -march=amdfam10 -O2 (x86)
Date: Tue, 30 Oct 2018 17:29:00 -0000
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--- Comment #9 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Mihail Zenkov from comment #7)
> http://www.knk.uwebweb.com/glibc-segfault-2.tar.xz
>
> I put full command line into exit.cmd and vfscanf.cmd.
Hm, it looks that for the first case __GI_exit gets called with misaligned
stack:
Breakpoint 2, __GI_exit (status=1) at exit.c:138
138 exit.c: No such file or directory.
(gdb) disass
Dump of assembler code for function __GI_exit:
=> 0xf7e241c0 <+0>: call 0xf7f29629 <__x86.get_pc_thunk.ax>
0xf7e241c5 <+5>: add $0x1a5e3b,%eax
0xf7e241ca <+10>: sub $0xc,%esp
0xf7e241cd <+13>: lea 0x3fc(%eax),%eax
0xf7e241d3 <+19>: push $0x1
0xf7e241d5 <+21>: push $0x1
0xf7e241d7 <+23>: push %eax
0xf7e241d8 <+24>: pushl 0x1c(%esp)
0xf7e241dc <+28>: call 0xf7e23fa0 <__run_exit_handlers>
End of assembler dump.
(gdb) i r $sp
sp 0xffffc424 0xffffc424
(gdb) up
#1 0x0804cdbf in ?? ()
(gdb) i r $sp
sp 0xffffc428 0xffffc428
Following this, __GI_exit calls __run_exit_handlers with misaligned stack:
Breakpoint 1, __run_exit_handlers (status=1, listp=0xf7fca3fc <__exit_funcs>,
run_list_atexit=true, run_dtors=true)
at exit.c:40
40 in exit.c
(gdb) disass
Dump of assembler code for function __run_exit_handlers:
=> 0xf7e23fa0 <+0>: push %ebp
0xf7e23fa1 <+1>: push %edi
0xf7e23fa2 <+2>: call 0xf7f29631 <__x86.get_pc_thunk.bp>
0xf7e23fa7 <+7>: add $0x1a6059,%ebp
0xf7e23fad <+13>: push %esi
0xf7e23fae <+14>: push %ebx
0xf7e23faf <+15>: sub $0x2c,%esp
...
(gdb) i r $sp
sp 0xffffc404 0xffffc404
(gdb) up
#1 0xf7e241e1 in __GI_exit (status=1) at exit.c:139
139 in exit.c
(gdb) i r $sp
sp 0xffffc408 0xffffc408
This is wrong, gcc assumes 16-byte aligned stack. It looks that busybox is at
fault here, it shouldn't call __GI_exit with misaligned stack.
>From gcc-bugs-return-619694-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 17:33:37 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/87817] New: [9 Regression] gcc.target/i386/bmi2-bzhi-2.c execution test
Date: Tue, 30 Oct 2018 17:33:00 -0000
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Bug ID: 87817
Summary: [9 Regression] gcc.target/i386/bmi2-bzhi-2.c execution
test
Product: gcc
Version: 9.0
Status: UNCONFIRMED
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Target Milestone: ---
On x86-64, r265398 caused:
FAIL: gcc.target/i386/bmi2-bzhi-2.c execution test
on BMI2 machines:
[hjl@gnu-cfl-1 gcc]$
/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/
/export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/bmi2-bzhi-2.c
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -O2 -mbmi2 -lm -o ./bmi2-bzhi-2.exe -g
gd[hjl@gnu-cfl-1 gcc]$ gdb ./bmi2-bzhi-2.exe
GNU gdb (GDB) Fedora 8.1.1-3.fc28
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
BFD: warning:
/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/testsuite/gcc/bmi2-bzhi-2.exe:
unsupported GNU_PROPERTY_TYPE (5) type: 0xc0010000
BFD: warning:
/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/testsuite/gcc/bmi2-bzhi-2.exe:
unsupported GNU_PROPERTY_TYPE (5) type: 0xc0010001
Reading symbols from ./bmi2-bzhi-2.exe...done.
(gdb) r
Starting program:
/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/testsuite/gcc/bmi2-bzhi-2.exe
BFD: warning: /lib64/ld-linux-x86-64.so.2: unsupported GNU_PROPERTY_TYPE (5)
type: 0xc0010000
BFD: warning: /lib64/ld-linux-x86-64.so.2: unsupported GNU_PROPERTY_TYPE (5)
type: 0xc0010001
Missing separate debuginfos, use: dnf debuginfo-install
glibc-2.27-33.2.fc28.x86_64
BFD: warning: /lib64/libm.so.6: unsupported GNU_PROPERTY_TYPE (5) type:
0xc0010000
BFD: warning: /lib64/libm.so.6: unsupported GNU_PROPERTY_TYPE (5) type:
0xc0010001
BFD: warning: /lib64/libc.so.6: unsupported GNU_PROPERTY_TYPE (5) type:
0xc0010000
BFD: warning: /lib64/libc.so.6: unsupported GNU_PROPERTY_TYPE (5) type:
0xc0010001
Program received signal SIGABRT, Aborted.
0x00007ffff7c874cf in raise () from /lib64/libc.so.6
(gdb) f 2
#2 0x0000000000401045 in bmi2_test ()
at
/export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/bmi2-bzhi-2.c:56
56 abort ();
(gdb) list
51 || f5 () != 0x7fffffffU || f6 (-1U) != 0x7fffffffU
52 || f7 () != -1U || f8 (-1U) != -1U
53 || f9 () != -1U || f10 (-1U) != -1U
54 || f11 () != 1 || f12 (-1U) != 1
55 || f13 () != -1U || f14 (-1U) != -1U)
56 abort ();
57 #ifdef __x86_64__
58 if (f21 () != 0 || f22 (-1ULL) != 0
59 || f23 () != 0x1f || f24 (-1ULL) != 0x1f
60 || f25 () != 0x7fffffffffffffffULL || f26 (-1ULL) !=
0x7fffffffffffffffULL
(gdb)
[hjl@gnu-cfl-1 gcc]$ cat /tmp/x.c
#include <x86intrin.h>
__attribute__((noinline, noclone))
unsigned long long
f22 (unsigned long long x)
{
return _bzhi_u64 (x, 0);
}
int
main ()
{
if (f22 (-1ULL) != 0)
abort ();
return 0;
}
[hjl@gnu-cfl-1 gcc]$ ./xgcc -B./ -O -mbmi2 /tmp/x.c -g
[hjl@gnu-cfl-1 gcc]$ ./a.out
Aborted
[hjl@gnu-cfl-1 gcc]$
[hjl@gnu-cfl-1 gcc]$ cat f.c
#include <x86intrin.h>
unsigned long long
f22 (unsigned long long x)
{
return _bzhi_u64 (x, 0);
}
[hjl@gnu-cfl-1 gcc]$ ./xgcc -B./ -O -mbmi2 f.c -S
cat[hjl@gnu-cfl-1 gcc]$ cat f.s
.file "f.c"
.text
.globl f22
.type f22, @function
f22:
.LFB5459:
.cfi_startproc
movl $64, %edx
shlx %rdx, %rdi, %rax
shrx %rdx, %rax, %rax
ret
.cfi_endproc
.LFE5459:
.size f22, .-f22
.ident "GCC: (GNU) 9.0.0 20181030 (experimental)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-cfl-1 gcc]$ gcc -O -mbmi2 f.c -S
[hjl@gnu-cfl-1 gcc]$ cat f.s
.file "f.c"
.text
.globl f22
.type f22, @function
f22:
.LFB5447:
.cfi_startproc
movl $0, %eax
bzhi %rax, %rdi, %rax
ret
.cfi_endproc
.LFE5447:
.size f22, .-f22
.ident "GCC: (GNU) 8.2.1 20181011 (Red Hat 8.2.1-4)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-cfl-1 gcc]$
>From gcc-bugs-return-619695-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 17:38:43 2018
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Subject: [Bug target/87702] [7/8/9 Regression] Segfault in glibc if compiled with -march=amdfam10 -O2 (x86)
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Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #10 from Uroš Bizjak <ubizjak at gmail dot com> ---
Same issue for the second test. Something calls __sscanf with misaligned stack:
Breakpoint 1, __sscanf (
s=0xffffc1a7 " 357383 799 0 0 0 0 0 1
88505 798 0 0 0 0 0 0\n", format=0x80ae357
"%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u") at sscanf.c:27
27 in sscanf.c
(gdb) disass
Dump of assembler code for function __sscanf:
=> 0xf7e5c100 <+0>: push %ebx
0xf7e5c101 <+1>: call 0xf7f278a5 <__x86.get_pc_thunk.bx>
0xf7e5c106 <+6>: add $0x16defa,%ebx
0xf7e5c10c <+12>: sub $0x8,%esp
0xf7e5c10f <+15>: lea 0x18(%esp),%eax
0xf7e5c113 <+19>: sub $0x4,%esp
0xf7e5c116 <+22>: push %eax
0xf7e5c117 <+23>: pushl 0x1c(%esp)
0xf7e5c11b <+27>: pushl 0x1c(%esp)
0xf7e5c11f <+31>: call 0xf7e619c0 <_IO_vsscanf>
0xf7e5c124 <+36>: add $0x18,%esp
0xf7e5c127 <+39>: pop %ebx
0xf7e5c128 <+40>: ret
End of assembler dump.
(gdb) i r $sp
sp 0xffffc134 0xffffc134
(gdb) up
#1 0x080568b3 in ?? ()
(gdb) i r $sp
sp 0xffffc138 0xffffc138
Please report these issues to busybox, there is nothing wrong with the compiler
or glibc.
BTW: Provided busybox binary was stripped, so the backtrace doesn't show the
caller name, only:
#2 0xf7e5c124 in __sscanf (
s=0xffffc1a7 " 355021 777 0 0 0 0 0 1
86884 779 0 0 0 0 0 0\n", format=0x80ae357
"%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u") at sscanf.c:32
#3 0x080568b3 in ?? ()
#4 0x31323035 in ?? ()
#5 0x20202020 in ?? ()
#6 0x37373720 in ?? ()
Anyway, not our bugs.
>From gcc-bugs-return-619696-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 17:52:24 2018
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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
Date: Tue, 30 Oct 2018 17:52:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87788
--- Comment #6 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Iain Buclaw from comment #5)
> (In reply to Iain Sandoe from comment #4)
> > (In reply to Iain Buclaw from comment #3)
> > > Thanks, I'm just going to try building it now.
> >
> > didn't get much further - kinda looks like something isn't working right
> > with Version() such that the OSX/Darwin versions of the section refs are not
> > getting used - hopefully, it's just config stuff and will be obvious to you.
>
> It may be that there's no predefined version conditions for OSX, right.
>
> In the meantime, I guess this will need to be done just to get builders
> passing again. So there's no time pressure on myself.
>
>
> --- a/configure.ac
> +++ b/configure.ac
> @@ -674,6 +674,30 @@ if test "${ENABLE_LIBSTDCXX}" = "default" ; then
> esac
> fi
>
> +# Disable the D frontend on systems where it is known to not work.
> +case "${target}" in
> +*-*-darwin* | *-*-cygwin* | *-*-mingw*)
> + unsupported_languages="$unsupported_languages d"
> + ;;
> +esac
> +
> +# Disable libphobos on unsupported systems.
> +# For testing, you can override this with --enable-libphobos.
> +if test -d ${srcdir}/libphobos; then
> + if test x$enable_libphobos = x; then
> + AC_MSG_CHECKING([for libphobos support])
> + if (srcdir=${srcdir}/libphobos; \
> + . ${srcdir}/configure.tgt; \
> + test -n "$UNSUPPORTED")
> + then
> + AC_MSG_RESULT([no])
> + noconfigdirs="$noconfigdirs target-libphobos"
> + else
> + AC_MSG_RESULT([yes])
> + fi
> + fi
> +fi
> +
> # Disable Fortran for some systems.
> case "${target}" in
> mmix-*-*)
hmm - isn't there a way to put it in the non-default category instead so that
someone trying to make it work doesn't need to hack configure?
and then just not build libphobos if d is not being built?
not a huge thing - better to get things building indeed than to agonise over
this ;)
I'd hope that we expect to get this going in 9.0 ? (I recall the observation at
the Cauldron that it ought to be not too too challenging).
>From gcc-bugs-return-619697-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 18:10:19 2018
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From: "ibuclaw at gdcproject dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
Date: Tue, 30 Oct 2018 18:10:00 -0000
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--- Comment #7 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
(In reply to Iain Sandoe from comment #6)
> (In reply to Iain Buclaw from comment #5)
> > (In reply to Iain Sandoe from comment #4)
> > > (In reply to Iain Buclaw from comment #3)
> > > > Thanks, I'm just going to try building it now.
> > >
> > > didn't get much further - kinda looks like something isn't working right
> > > with Version() such that the OSX/Darwin versions of the section refs are not
> > > getting used - hopefully, it's just config stuff and will be obvious to you.
> >
> > It may be that there's no predefined version conditions for OSX, right.
> >
> > In the meantime, I guess this will need to be done just to get builders
> > passing again. So there's no time pressure on myself.
> >
> >
> > --- a/configure.ac
> > +++ b/configure.ac
> > @@ -674,6 +674,30 @@ if test "${ENABLE_LIBSTDCXX}" = "default" ; then
> > esac
> > fi
> >
> > +# Disable the D frontend on systems where it is known to not work.
> > +case "${target}" in
> > +*-*-darwin* | *-*-cygwin* | *-*-mingw*)
> > + unsupported_languages="$unsupported_languages d"
> > + ;;
> > +esac
> > +
> > +# Disable libphobos on unsupported systems.
> > +# For testing, you can override this with --enable-libphobos.
> > +if test -d ${srcdir}/libphobos; then
> > + if test x$enable_libphobos = x; then
> > + AC_MSG_CHECKING([for libphobos support])
> > + if (srcdir=${srcdir}/libphobos; \
> > + . ${srcdir}/configure.tgt; \
> > + test -n "$UNSUPPORTED")
> > + then
> > + AC_MSG_RESULT([no])
> > + noconfigdirs="$noconfigdirs target-libphobos"
> > + else
> > + AC_MSG_RESULT([yes])
> > + fi
> > + fi
> > +fi
> > +
> > # Disable Fortran for some systems.
> > case "${target}" in
> > mmix-*-*)
>
> hmm - isn't there a way to put it in the non-default category instead so
> that someone trying to make it work doesn't need to hack configure?
>
> and then just not build libphobos if d is not being built?
>
> not a huge thing - better to get things building indeed than to agonise over
> this ;)
>
> I'd hope that we expect to get this going in 9.0 ? (I recall the observation
> at the Cauldron that it ought to be not too too challenging).
The reference D compiler (dmd) makes builds for i386 and x86_64 Windows, OSX,
Linux and BSD, and extern C binding support is present in the library.
So no it shouldn't be difficult.
If .minfo section doesn't translate well to Mach-O however, shared library
support would need some work.
Would adding/finishing off ports be fine during stage 3?
>From gcc-bugs-return-619698-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 18:25:22 2018
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Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
Date: Tue, 30 Oct 2018 18:25:00 -0000
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--- Comment #8 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
(In reply to Iain Sandoe from comment #6)
>
> hmm - isn't there a way to put it in the non-default category instead so
> that someone trying to make it work doesn't need to hack configure?
>
> and then just not build libphobos if d is not being built?
>
So something like.
# Disable the D frontend on systems where it is known to not work.
# For testing, you can override this with --enable-languages=d.
case ,${enable_languages}, in
*,d,*)
;;
*)
case "${target}" in
*-*-darwin* | *-*-cygwin* | *-*-mingw*)
echo "$enable_languages"
unsupported_languages="$unsupported_languages d"
;;
esac
;;
esac
There'd be large swaths of functionality unavailable if without libphobos, but
a standalone compiler is still workable given that there's an object.d in the
search paths.
>From gcc-bugs-return-619699-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 18:35:50 2018
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Subject: [Bug d/87818] New: D runtime does not build on FreeBSD.
Date: Tue, 30 Oct 2018 18:35:00 -0000
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Bug ID: 87818
Summary: D runtime does not build on FreeBSD.
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: d
Assignee: ibuclaw at gdcproject dot org
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Created attachment 44933
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44933&action=edit
Log of bootstrap failure
The bootstrap dies with
libtool: compile: /safe/sgk/gcc/objx/./gcc/gdc -B/safe/sgk/gcc/objx/./gcc/
-B/s
afe/sgk/work/x/x86_64-unknown-freebsd13.0/bin/
-B/safe/sgk/work/x/x86_64-unknown
-freebsd13.0/lib/ -isystem /safe/sgk/work/x/x86_64-unknown-freebsd13.0/include
-
isystem /safe/sgk/work/x/x86_64-unknown-freebsd13.0/sys-include -fchecking=1
-fP
IC -O2 -g -nostdinc -I ../../../../gccx/libphobos/libdruntime -I . -c
../../../.
./gccx/libphobos/libdruntime/core/demangle.d -fversion=Shared -o
core/.libs/dema
ngle.o
/safe/sgk/gcc/gccx/libphobos/libdruntime/core/stdc/stdlib.d:201:9: error:
undefined identifier 'wchar_t'
201 | int mbtowc(scope wchar_t* pwc, scope const char* s, size_t n);
| ^
/safe/sgk/gcc/gccx/libphobos/libdruntime/core/stdc/stdlib.d:203:9: error:
undefined identifier 'wchar_t'
Build log attached.
>From gcc-bugs-return-619700-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 18:38:39 2018
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Subject: [Bug d/87819] New: failure during bootstrap, fails to build libdruntime
Date: Tue, 30 Oct 2018 18:38:00 -0000
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Bug ID: 87819
Summary: failure during bootstrap, fails to build libdruntime
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: d
Assignee: ibuclaw at gdcproject dot org
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There are a lot undefined identifier errors while compiling core/demangle.d:
/bin/sh ../libtool --tag=D --mode=compile
/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/./gcc/gdc
-B/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/./gcc/
-L/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/lib
-L/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/mingw/lib
-isystem
/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/include
-isystem
/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/mingw/include
-B/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/bin/
-B/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/lib/
-isystem
/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/include
-isystem
/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/sys-include
-fno-checking -DDLL_EXPORT -O2 -g -nostdinc -I
../../../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/libphobos/libdruntime
-I . -c -o core/demangle.lo
../../../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/libphobos/libdruntime/core/demangle.d
libtool: compile:
/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/./gcc/gdc
-B/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/./gcc/
-L/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/lib
-L/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/mingw/lib
-isystem
/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/include
-isystem
/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/mingw/include
-B/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/bin/
-B/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/lib/
-isystem
/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/include
-isystem
/opt/devel/gnu/gcc/MINGW_NT/x86_64-w64-mingw32/mingw-w64-runtime-trunk-svn/gcc-9.0.0-test/x86_64-w64-mingw32/sys-include
-fno-checking -DDLL_EXPORT -O2 -g -nostdinc -I
../../../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/libphobos/libdruntime
-I . -c
../../../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/libphobos/libdruntime/core/demangle.d
-fversion=Shared -o core/.libs/demangle.o
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdlib.d:201:9:
error: undefined identifier 'wchar_t'
201 | int mbtowc(scope wchar_t* pwc, scope const char* s, size_t n);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdlib.d:203:9:
error: undefined identifier 'wchar_t'
203 | int wctomb(scope char* s, wchar_t wc);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdlib.d:205:9:
error: undefined identifier 'wchar_t'
205 | size_t mbstowcs(scope wchar_t* pwcs, scope const char* s, size_t n);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdlib.d:207:9:
error: undefined identifier 'wchar_t'
207 | size_t wcstombs(scope char* s, scope const wchar_t* pwcs, size_t n);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:151:9:
error: undefined identifier 'time_t', did you mean function 'time'?
151 | double difftime(time_t time1, time_t time0);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:151:9:
error: undefined identifier 'time_t', did you mean function 'time'?
151 | double difftime(time_t time1, time_t time0);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:153:9:
error: undefined identifier 'time_t', did you mean function 'time'?
153 | time_t mktime(tm* timeptr);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:153:9:
error: undefined identifier 'tm'
153 | time_t mktime(tm* timeptr);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:155:9:
error: undefined identifier 'time_t', did you mean function 'time'?
155 | time_t time(time_t* timer);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:155:9:
error: undefined identifier 'time_t', did you mean function 'time'?
155 | time_t time(time_t* timer);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:157:9:
error: undefined identifier 'tm'
157 | char* asctime(in tm* timeptr);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:159:9:
error: undefined identifier 'time_t', did you mean function 'time'?
159 | char* ctime(in time_t* timer);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:161:9:
error: undefined identifier 'tm'
161 | tm* gmtime(in time_t* timer);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:161:9:
error: undefined identifier 'time_t', did you mean function 'time'?
161 | tm* gmtime(in time_t* timer);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:163:9:
error: undefined identifier 'tm'
163 | tm* localtime(in time_t* timer);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:163:9:
error: undefined identifier 'time_t', did you mean function 'time'?
163 | tm* localtime(in time_t* timer);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\time.d:165:17:
error: undefined identifier 'tm'
165 | @system size_t strftime(char* s, size_t maxsize, in char* format, in
tm* timeptr);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\wchar_.d:89:14:
error: undefined identifier 'wchar_t'
89 | enum wchar_t WEOF = 0xFFFF;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\wchar_.d:92:5:
error: undefined identifier 'FILE'
92 | int fwprintf(FILE* stream, in wchar_t* format, ...);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\wchar_.d:92:5:
error: undefined identifier 'wchar_t'
92 | int fwprintf(FILE* stream, in wchar_t* format, ...);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\wchar_.d:94:5:
error: undefined identifier 'FILE'
94 | int fwscanf(FILE* stream, in wchar_t* format, ...);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\wchar_.d:94:5:
error: undefined identifier 'wchar_t'
.
.
.
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:168:27:
error: undefined identifier 'int8_t'
168 | enum int8_t INT8_MIN = int8_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:170:15:
error: undefined identifier 'int8_t'
170 | enum int8_t INT8_MAX = int8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:170:27:
error: undefined identifier 'int8_t'
170 | enum int8_t INT8_MAX = int8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:172:15:
error: undefined identifier 'int16_t'
172 | enum int16_t INT16_MIN = int16_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:172:27:
error: undefined identifier 'int16_t'
172 | enum int16_t INT16_MIN = int16_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:174:15:
error: undefined identifier 'int16_t'
174 | enum int16_t INT16_MAX = int16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:174:27:
error: undefined identifier 'int16_t'
174 | enum int16_t INT16_MAX = int16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:176:15:
error: undefined identifier 'int32_t'
176 | enum int32_t INT32_MIN = int32_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:176:27:
error: undefined identifier 'int32_t'
176 | enum int32_t INT32_MIN = int32_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:178:15:
error: undefined identifier 'int32_t'
178 | enum int32_t INT32_MAX = int32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:178:27:
error: undefined identifier 'int32_t'
178 | enum int32_t INT32_MAX = int32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:180:15:
error: undefined identifier 'int64_t'
180 | enum int64_t INT64_MIN = int64_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:180:27:
error: undefined identifier 'int64_t'
180 | enum int64_t INT64_MIN = int64_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:182:15:
error: undefined identifier 'int64_t'
182 | enum int64_t INT64_MAX = int64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:182:27:
error: undefined identifier 'int64_t'
182 | enum int64_t INT64_MAX = int64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:185:15:
error: undefined identifier 'uint8_t'
185 | enum uint8_t UINT8_MAX = uint8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:185:28:
error: undefined identifier 'uint8_t'
185 | enum uint8_t UINT8_MAX = uint8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:187:15:
error: undefined identifier 'uint16_t'
187 | enum uint16_t UINT16_MAX = uint16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:187:28:
error: undefined identifier 'uint16_t'
187 | enum uint16_t UINT16_MAX = uint16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:189:15:
error: undefined identifier 'uint32_t'
189 | enum uint32_t UINT32_MAX = uint32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:189:28:
error: undefined identifier 'uint32_t'
189 | enum uint32_t UINT32_MAX = uint32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:191:15:
error: undefined identifier 'uint64_t'
191 | enum uint64_t UINT64_MAX = uint64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:191:28:
error: undefined identifier 'uint64_t'
191 | enum uint64_t UINT64_MAX = uint64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:194:22:
error: undefined identifier 'int_least8_t'
194 | enum int_least8_t INT_LEAST8_MIN = int_least8_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:194:41:
error: undefined identifier 'int_least8_t'
194 | enum int_least8_t INT_LEAST8_MIN = int_least8_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:196:22:
error: undefined identifier 'int_least8_t'
196 | enum int_least8_t INT_LEAST8_MAX = int_least8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:196:41:
error: undefined identifier 'int_least8_t'
196 | enum int_least8_t INT_LEAST8_MAX = int_least8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:198:22:
error: undefined identifier 'int_least16_t'
198 | enum int_least16_t INT_LEAST16_MIN = int_least16_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:198:41:
error: undefined identifier 'int_least16_t'
198 | enum int_least16_t INT_LEAST16_MIN = int_least16_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:200:22:
error: undefined identifier 'int_least16_t'
200 | enum int_least16_t INT_LEAST16_MAX = int_least16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:200:41:
error: undefined identifier 'int_least16_t'
200 | enum int_least16_t INT_LEAST16_MAX = int_least16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:202:22:
error: undefined identifier 'int_least32_t'
202 | enum int_least32_t INT_LEAST32_MIN = int_least32_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:202:41:
error: undefined identifier 'int_least32_t'
202 | enum int_least32_t INT_LEAST32_MIN = int_least32_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:204:22:
error: undefined identifier 'int_least32_t'
204 | enum int_least32_t INT_LEAST32_MAX = int_least32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:204:41:
error: undefined identifier 'int_least32_t'
204 | enum int_least32_t INT_LEAST32_MAX = int_least32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:206:22:
error: undefined identifier 'int_least64_t'
206 | enum int_least64_t INT_LEAST64_MIN = int_least64_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:206:41:
error: undefined identifier 'int_least64_t'
206 | enum int_least64_t INT_LEAST64_MIN = int_least64_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:208:22:
error: undefined identifier 'int_least64_t'
208 | enum int_least64_t INT_LEAST64_MAX = int_least64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:208:41:
error: undefined identifier 'int_least64_t'
208 | enum int_least64_t INT_LEAST64_MAX = int_least64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:211:22:
error: undefined identifier 'uint_least8_t'
211 | enum uint_least8_t UINT_LEAST8_MAX = uint_least8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:211:41:
error: undefined identifier 'uint_least8_t'
211 | enum uint_least8_t UINT_LEAST8_MAX = uint_least8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:213:22:
error: undefined identifier 'uint_least16_t'
213 | enum uint_least16_t UINT_LEAST16_MAX = uint_least16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:213:41:
error: undefined identifier 'uint_least16_t'
213 | enum uint_least16_t UINT_LEAST16_MAX = uint_least16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:215:22:
error: undefined identifier 'uint_least32_t'
215 | enum uint_least32_t UINT_LEAST32_MAX = uint_least32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:215:41:
error: undefined identifier 'uint_least32_t'
215 | enum uint_least32_t UINT_LEAST32_MAX = uint_least32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:217:22:
error: undefined identifier 'uint_least64_t'
217 | enum uint_least64_t UINT_LEAST64_MAX = uint_least64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:217:41:
error: undefined identifier 'uint_least64_t'
217 | enum uint_least64_t UINT_LEAST64_MAX = uint_least64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:220:20:
error: undefined identifier 'int_fast8_t'
220 | enum int_fast8_t INT_FAST8_MIN = int_fast8_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:220:38:
error: undefined identifier 'int_fast8_t'
220 | enum int_fast8_t INT_FAST8_MIN = int_fast8_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:222:20:
error: undefined identifier 'int_fast8_t'
222 | enum int_fast8_t INT_FAST8_MAX = int_fast8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:222:38:
error: undefined identifier 'int_fast8_t'
222 | enum int_fast8_t INT_FAST8_MAX = int_fast8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:224:20:
error: undefined identifier 'int_fast16_t'
224 | enum int_fast16_t INT_FAST16_MIN = int_fast16_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:224:38:
error: undefined identifier 'int_fast16_t'
224 | enum int_fast16_t INT_FAST16_MIN = int_fast16_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:226:20:
error: undefined identifier 'int_fast16_t'
226 | enum int_fast16_t INT_FAST16_MAX = int_fast16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:226:38:
error: undefined identifier 'int_fast16_t'
226 | enum int_fast16_t INT_FAST16_MAX = int_fast16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:228:20:
error: undefined identifier 'int_fast32_t'
228 | enum int_fast32_t INT_FAST32_MIN = int_fast32_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:228:38:
error: undefined identifier 'int_fast32_t'
228 | enum int_fast32_t INT_FAST32_MIN = int_fast32_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:230:20:
error: undefined identifier 'int_fast32_t'
230 | enum int_fast32_t INT_FAST32_MAX = int_fast32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:230:38:
error: undefined identifier 'int_fast32_t'
230 | enum int_fast32_t INT_FAST32_MAX = int_fast32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:232:20:
error: undefined identifier 'int_fast64_t'
232 | enum int_fast64_t INT_FAST64_MIN = int_fast64_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:232:38:
error: undefined identifier 'int_fast64_t'
232 | enum int_fast64_t INT_FAST64_MIN = int_fast64_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:234:20:
error: undefined identifier 'int_fast64_t'
234 | enum int_fast64_t INT_FAST64_MAX = int_fast64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:234:38:
error: undefined identifier 'int_fast64_t'
234 | enum int_fast64_t INT_FAST64_MAX = int_fast64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:237:20:
error: undefined identifier 'uint_fast8_t'
237 | enum uint_fast8_t UINT_FAST8_MAX = uint_fast8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:237:38:
error: undefined identifier 'uint_fast8_t'
237 | enum uint_fast8_t UINT_FAST8_MAX = uint_fast8_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:239:20:
error: undefined identifier 'uint_fast16_t'
239 | enum uint_fast16_t UINT_FAST16_MAX = uint_fast16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:239:38:
error: undefined identifier 'uint_fast16_t'
239 | enum uint_fast16_t UINT_FAST16_MAX = uint_fast16_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:241:20:
error: undefined identifier 'uint_fast32_t'
241 | enum uint_fast32_t UINT_FAST32_MAX = uint_fast32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:241:38:
error: undefined identifier 'uint_fast32_t'
241 | enum uint_fast32_t UINT_FAST32_MAX = uint_fast32_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:243:20:
error: undefined identifier 'uint_fast64_t'
243 | enum uint_fast64_t UINT_FAST64_MAX = uint_fast64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:243:38:
error: undefined identifier 'uint_fast64_t'
243 | enum uint_fast64_t UINT_FAST64_MAX = uint_fast64_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:246:16:
error: undefined identifier 'intptr_t'
246 | enum intptr_t INTPTR_MIN = intptr_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:246:30:
error: undefined identifier 'intptr_t'
246 | enum intptr_t INTPTR_MIN = intptr_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:248:16:
error: undefined identifier 'intptr_t'
248 | enum intptr_t INTPTR_MAX = intptr_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:248:30:
error: undefined identifier 'intptr_t'
248 | enum intptr_t INTPTR_MAX = intptr_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:251:16:
error: undefined identifier 'uintptr_t'
251 | enum uintptr_t UINTPTR_MIN = uintptr_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:251:30:
error: undefined identifier 'uintptr_t'
251 | enum uintptr_t UINTPTR_MIN = uintptr_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:253:16:
error: undefined identifier 'uintptr_t'
253 | enum uintptr_t UINTPTR_MAX = uintptr_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:253:30:
error: undefined identifier 'uintptr_t'
253 | enum uintptr_t UINTPTR_MAX = uintptr_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:256:16:
error: undefined identifier 'intmax_t'
256 | enum intmax_t INTMAX_MIN = intmax_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:256:30:
error: undefined identifier 'intmax_t'
256 | enum intmax_t INTMAX_MIN = intmax_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:258:16:
error: undefined identifier 'intmax_t'
258 | enum intmax_t INTMAX_MAX = intmax_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:258:30:
error: undefined identifier 'intmax_t'
258 | enum intmax_t INTMAX_MAX = intmax_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:261:16:
error: undefined identifier 'uintmax_t'
261 | enum uintmax_t UINTMAX_MAX = uintmax_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:261:30:
error: undefined identifier 'uintmax_t'
261 | enum uintmax_t UINTMAX_MAX = uintmax_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:277:14:
error: undefined identifier 'wchar_t'
277 | enum wchar_t WCHAR_MIN = wchar_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:277:26:
error: undefined identifier 'wchar_t'
277 | enum wchar_t WCHAR_MIN = wchar_t.min;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:279:14:
error: undefined identifier 'wchar_t'
279 | enum wchar_t WCHAR_MAX = wchar_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdint.d:279:26:
error: undefined identifier 'wchar_t'
279 | enum wchar_t WCHAR_MAX = wchar_t.max;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdio.d:31:12:
error: module core.stdc.stdint import 'intptr_t' not found
31 | import core.stdc.stdint : intptr_t;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdio.d:1149:16:
error: undefined identifier 'FILE'
1149 | @trusted FILE* tmpfile(); // No unsafe pointer manipulation.
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdio.d:1154:7:
error: undefined identifier 'FILE'
1154 | int fclose(FILE* stream);
| ^
.
.
.
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdio.d:1313:12:
error: undefined identifier 'FILE'
1313 | int fseek(FILE* stream, c_long offset, int whence);
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdio.d:1315:12:
error: undefined identifier 'FILE'
1315 | c_long ftell(FILE* stream);
| ^
../../../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-9.0.0-test/libphobos/libdruntime/core/demangle.d:2622:16:
error: module core.stdc.stdio import 'snprintf' not found, did you mean
function 'sprintf'?
2622 | import core.stdc.stdio : snprintf;
| ^
D:\opt\devel\gnu\src\gcc-mingw-w64\gcc-9.0.0-test\libphobos\libdruntime\core\stdc\stdlib.d:98:6:
error: static assert "Unsupported platform"
98 | else static assert( false, "Unsupported platform" );
| ^
make[4]: *** [Makefile:2901: core/demangle.lo] Error 1
make[4]: Leaving directory
'/opt/devel/SCRATCH/tmp.I8jwTRKpzz/gcc-9.0.0-test/gcc-9.0.0-test/x86_64-w64-mingw32/libphobos/libdruntime'
>From gcc-bugs-return-619701-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 18:44:57 2018
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/85896] ICE in gfc_convert_constant(): Unexpected type
Date: Tue, 30 Oct 2018 18:44:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85896
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |tkoenig at gcc dot gnu.org
--- Comment #7 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
A rare case where fixing a bug involves removing code only.
Index: simplify.c
===================================================================
--- simplify.c (Revision 265502)
+++ simplify.c (Arbeitskopie)
@@ -4961,11 +4961,9 @@
simplify_min_max (gfc_expr *expr, int sign)
{
gfc_actual_arglist *arg, *last, *extremum;
- gfc_intrinsic_sym * specific;
last = NULL;
extremum = NULL;
- specific = expr->value.function.isym;
arg = expr->value.function.actual;
@@ -4995,15 +4993,6 @@
if (expr->value.function.actual->next != NULL)
return NULL;
- /* Convert to the correct type and kind. */
- if (expr->ts.type != BT_UNKNOWN)
- return gfc_convert_constant (expr->value.function.actual->expr,
- expr->ts.type, expr->ts.kind);
-
- if (specific->ts.type != BT_UNKNOWN)
- return gfc_convert_constant (expr->value.function.actual->expr,
- specific->ts.type, specific->ts.kind);
-
return gfc_copy_expr (expr->value.function.actual->expr);
}
>From gcc-bugs-return-619702-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 18:47:53 2018
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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug d/87818] D runtime does not build on FreeBSD.
Date: Tue, 30 Oct 2018 18:47:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87818
--- Comment #1 from kargl at gcc dot gnu.org ---
I poking through /usr/include, I find
% find /usr/include -type f | xargs grep ___wchar_t
/usr/include/x86/_types.h:typedef int ___wchar_t;
/usr/include/stddef.h:typedef ___wchar_t wchar_t;
/usr/include/wchar.h:typedef ___wchar_t wchar_t;
/usr/include/stdlib.h:typedef ___wchar_t wchar_t;
/usr/include/inttypes.h:typedef ___wchar_t wchar_t;
It seems the D does not pick up the definition of ___wchar_t in
the x86/_typed.h header.
>From gcc-bugs-return-619703-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 19:05:14 2018
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Subject: [Bug bootstrap/87789] D does not build on powerpc64-linux
Date: Tue, 30 Oct 2018 19:05:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87789
Iain Buclaw <ibuclaw at gdcproject dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ibuclaw at gdcproject dot org
--- Comment #1 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
This is related to IBM long double support in the math-related modules.
Shouldn't the component be D as well?
>From gcc-bugs-return-619705-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 19:16:40 2018
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Subject: [Bug fortran/44646] [F08] Implement DO CONCURRENT
Date: Tue, 30 Oct 2018 19:16:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44646
Bug 44646 depends on bug 83064, which changed state.
Bug 83064 Summary: DO CONCURRENT and auto-parallelization
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83064
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
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Subject: [Bug fortran/83064] DO CONCURRENT and auto-parallelization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83064
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #31 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Hm, on my system (current trunk), with the unrolled loop, parallelization
only happens with -Ofast:
$ gfortran -ftree-parallelize-loops=2 -O1 conc.f90 && time ./a.out
PI 3.1415926553497115
PI 3.14159274
real 0m0.313s
user 0m0.345s
sys 0m0.001s
$ gfortran -ftree-parallelize-loops=2 -O2 conc.f90 && time ./a.out
PI 3.1415926553497115
PI 3.14159274
real 0m0.273s
user 0m0.272s
sys 0m0.001s
$ gfortran -ftree-parallelize-loops=2 -O3 conc.f90 && time ./a.out
PI 3.1415926553497115
PI 3.14159274
real 0m0.278s
user 0m0.278s
sys 0m0.001s
$ gfortran -ftree-parallelize-loops=2 -Ofast conc.f90 && time ./a.out
PI 3.1415926553497115
PI 3.14159274
real 0m0.152s
user 0m0.296s
sys 0m0.001s
However, the wrong-code bug is indeed fixed. I'll look at paralellization
separately.
>From gcc-bugs-return-619706-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 19:34:19 2018
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Subject: [Bug d/87789] D does not build on powerpc64-linux
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Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|bootstrap |d
Assignee|unassigned at gcc dot gnu.org |ibuclaw at gdcproject dot org
--- Comment #2 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Yup, changed that (that component didn't exist yet when I filed this :-) )
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Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
Date: Tue, 30 Oct 2018 19:42:00 -0000
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--- Comment #9 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Iain Buclaw from comment #8)
> (In reply to Iain Sandoe from comment #6)
> >
> > hmm - isn't there a way to put it in the non-default category instead so
> > that someone trying to make it work doesn't need to hack configure?
> >
> > and then just not build libphobos if d is not being built?
> >
>
> So something like.
>
> # Disable the D frontend on systems where it is known to not work.
> # For testing, you can override this with --enable-languages=d.
> case ,${enable_languages}, in
> *,d,*)
> ;;
> *)
> case "${target}" in
> *-*-darwin* | *-*-cygwin* | *-*-mingw*)
> echo "$enable_languages"
> unsupported_languages="$unsupported_languages d"
> ;;
> esac
> ;;
> esac
>
>
> There'd be large swaths of functionality unavailable if without libphobos,
> but a standalone compiler is still workable given that there's an object.d
> in the search paths.
good motivation for the (very few) Darwin folks to try and fix it ..
thanks, I'll update in a little while - hopefully after the next C++ stds
meeting there will be some cycles to try and tackle this.
polishing new additions in stage 3 is expected, I think.
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Subject: [Bug rtl-optimization/87708] [9 Regression] ira-shrinkwrap-prep-[12].c testcases fail after r265398
Date: Tue, 30 Oct 2018 19:50:00 -0000
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--- Comment #2 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Author: segher
Date: Tue Oct 30 19:49:36 2018
New Revision: 265639
URL: https://gcc.gnu.org/viewcvs?rev=265639&root=gcc&view=rev
Log:
xfail ira-shrink-wrap-prep tests (PR87708)
After r265398, the ira-shrinkwrap-prep-[12].c tests fail on all
targets, because the IRA feature tested can only move hard registers
down, and we no longer have hard registers for the function parameters
at this stage.
gcc/testsuite/
PR rtl-optimization/87708
gcc.dg/ira-shrinkwrap-prep-1.c: xfail test.
gcc.dg/ira-shrinkwrap-prep-2.c: xfail test.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/ira-shrinkwrap-prep-1.c
trunk/gcc/testsuite/gcc.dg/ira-shrinkwrap-prep-2.c
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Subject: [Bug c/87795] Excessive alignment permitted for functions and labels
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Martin Sebor <msebor at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org
>From gcc-bugs-return-619710-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 20:42:23 2018
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Subject: [Bug driver/87769] GCC build from source uses headers and libraries from directories host machine.
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--- Comment #2 from Mateusz Zych <mte.zych at gmail dot com> ---
Hi Andrew ;)
Thanks for your reply.
You are right that, in order to create standalone GCC,
I need to provide C standard library,
because GCC can work with various C standard library implementations.
The GNU C Library (glibc) is just one implementation,
which is not always used (for example Android is using bionic).
To correct my script,
I changed it to download and compile binutils, glibc and gcc respectively:
# GNU Binutils
wget https://ftp.gnu.org/gnu/binutils/binutils-2.31.tar.gz
tar -xvf binutils-2.31.tar.gz
mv binutils-2.31 binutils-source
mkdir binutils-build
cd binutils-build
../binutils-source/configure --build=x86_64-linux-gnu \
--host=x86_64-linux-gnu \
--target=x86_64-linux-gnu \
--prefix=$PWD/gcc \
--disable-multilib \
--disable-nls
make -j 4
make install
cd ..
# GNU C Library (glibc)
wget https://ftp.gnu.org/gnu/glibc/glibc-2.28.tar.gz
tar -xvf glibc-2.28.tar.gz
mv glibc-2.28 glibc-source
mkdir glibc-build
cd glibc-build
../glibc-source/configure --build=x86_64-linux-gnu \
--host=x86_64-linux-gnu \
--target=x86_64-linux-gnu \
--prefix=$PWD/gcc \
--disable-multilib \
--disable-nls \
--disable-timezone-tools
make -j 4
make install
cd ..
# GCC
wget https://ftp.gnu.org/gnu/gcc/gcc-8.2.0/gcc-8.2.0.tar.gz
tar -xvf gcc-8.2.0.tar.gz
mv gcc-8.2.0 gcc-source
cd gcc-source
./contrib/download_prerequisites
cd ..
mkdir gcc-build
cd gcc-build
../gcc-source/configure --build=x86_64-linux-gnu \
--host=x86_64-linux-gnu \
--target=x86_64-linux-gnu \
--prefix=$PWD/gcc \
--enable-languages=c,c++ \
--disable-multilib \
--disable-nls
make -j 4
make install
cd ..
This improved things, in a sense that, in my simple C++ application compiled
using GCC build from source it includes only these headers from host machine:
- /usr/include/asm-generic/errno-base.h
- /usr/include/asm-generic/errno.h
- /usr/include/linux/errno.h
- /usr/include/x86_64-linux-gnu/asm/errno.h
However, header files from host machine are still being included!
This can be seen when listing include directories used by GCC build from
source:
/home/mzych/gcc/bin/../lib/gcc/x86_64-linux-gnu/8.2.0/../../../../include/c++/8.2.0
/home/mzych/gcc/bin/../lib/gcc/x86_64-linux-gnu/8.2.0/../../../../include/c++/8.2.0/x86_64-linux-gnu
/home/mzych/gcc/bin/../lib/gcc/x86_64-linux-gnu/8.2.0/../../../../include/c++/8.2.0/backward
/home/mzych/gcc/bin/../lib/gcc/x86_64-linux-gnu/8.2.0/include
/home/mzych/gcc/bin/../lib/gcc/x86_64-linux-gnu/8.2.0/include-fixed
---> /usr/local/include
/home/mzych/gcc/bin/../lib/gcc/../../include
---> /usr/include/x86_64-linux-gnu
---> /usr/include
OK, maybe I'm completely wrong here, but I think that
it would be great to introduce to GCC a configuration option,
which would prevent GCC from using any headers and libraries from host machine.
In this configuration, GCC would simply return compilation error in
case where required header or library would not found
in its own directory tree.
BTW, I was searching for such an option, but I couldn't find it.
- https://gcc.gnu.org/install/configure.html
Thanks, Mateusz
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Subject: [Bug rtl-optimization/87507] IRA unnecessarily uses non-volatile registers during register assignment
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--- Comment #8 from Peter Bergner <bergner at gcc dot gnu.org> ---
So Vlad is hesitant (probably rightly :) on accepting my patch. Looking
closer, on BE, lower subreg2 is able to break the TImode accesses into 2 DImode
accesses which helps tremendously. On LE (power8), split1 runs just before
lower subreg2 and inserts swaps on the memory accesses, which confuses lower
subreg, so we keep the TImode accesses and we get register pairs which are hard
to allocate and leads to poor decisions in this particular case.
As a hack, I moved lower subreg2 before split1 and we get the code we want. I
don't think want to do that for real, so I will look at enhancing lower subreg
to recognize our TImode memory ops with swaps to see whether we can still
decompose them.
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Subject: [Bug c/87795] Excessive alignment permitted for functions and labels
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87795
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
--- Comment #7 from Martin Sebor <msebor at gcc dot gnu.org> ---
Patch: https://gcc.gnu.org/ml/gcc-patches/2018-10/msg01965.html
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Subject: [Bug rtl-optimization/87507] IRA unnecessarily uses non-volatile registers during register assignment
Date: Tue, 30 Oct 2018 21:52:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87507
--- Comment #9 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Why isn't this handled in subreg1 already? Sorry if that is obvious :-)
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Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
Date: Tue, 30 Oct 2018 21:53:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87788
--- Comment #10 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
(In reply to Iain Sandoe from comment #4)
> (In reply to Iain Buclaw from comment #3)
> > Thanks, I'm just going to try building it now.
>
> didn't get much further - kinda looks like something isn't working right
> with Version() such that the OSX/Darwin versions of the section refs are not
> getting used - hopefully, it's just config stuff and will be obvious to you.
To begin with this directive.
.section minfo
Should be:
.section __DATA,minfo
Looks like something new for the D language back-end stuff to handle.
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Subject: [Bug middle-end/87041] [8/9 Regression] GCC 8 regression: -Wformat "reading through null pointer" on unreachable code
Date: Tue, 30 Oct 2018 21:59:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87041
--- Comment #10 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Tue Oct 30 21:58:35 2018
New Revision: 265648
URL: https://gcc.gnu.org/viewcvs?rev=265648&root=gcc&view=rev
Log:
PR middle-end/87041 - -Wformat reading through null pointer on unreachable code
gcc/ChangeLog:
PR middle-end/87041
* gimple-ssa-sprintf.c (format_directive): Use %G to include
inlining context.
(sprintf_dom_walker::compute_format_length):
Avoid setting POSUNDER4K here.
(get_destination_size): Handle null argument values.
(get_user_idx_format): New function.
(sprintf_dom_walker::handle_gimple_call): Handle all printf-like
functions, including user-defined with attribute format printf.
Use %G to include inlining context.
Set POSUNDER4K here.
gcc/c-family/ChangeLog:
PR middle-end/87041
* c-format.c (check_format_types): Avoid diagnosing null pointer
arguments to printf-family of functions.
gcc/testsuite/ChangeLog:
PR middle-end/87041
* gcc.c-torture/execute/fprintf-2.c: New test.
* gcc.c-torture/execute/printf-2.c: Same.
* gcc.c-torture/execute/user-printf.c: Same.
* gcc.dg/tree-ssa/builtin-fprintf-warn-1.c: Same.
* gcc.dg/tree-ssa/builtin-printf-2.c: Same.
* gcc.dg/tree-ssa/builtin-printf-warn-1.c: Same.
* gcc.dg/tree-ssa/user-printf-warn-1.c: Same.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/fprintf-2.c
trunk/gcc/testsuite/gcc.c-torture/execute/printf-2.c
trunk/gcc/testsuite/gcc.c-torture/execute/user-printf.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-fprintf-warn-1.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-printf-2.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-printf-warn-1.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/user-printf-warn-1.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/c-family/ChangeLog
trunk/gcc/c-family/c-format.c
trunk/gcc/gimple-ssa-sprintf.c
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug middle-end/87041] [8 Regression] GCC 8 regression: -Wformat "reading through null pointer" on unreachable code
Date: Tue, 30 Oct 2018 22:04:00 -0000
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Known to work| |7.3.0, 9.0
Resolution|--- |FIXED
Target Milestone|8.3 |9.0
Summary|[8/9 Regression] GCC 8 |[8 Regression] GCC 8
|regression: -Wformat |regression: -Wformat
|"reading through null |"reading through null
|pointer" on unreachable |pointer" on unreachable
|code |code
Known to fail| |8.2.0
--- Comment #11 from Martin Sebor <msebor at gcc dot gnu.org> ---
Patch committed to trunk in r265648. It's too intrusive to backport to GCC 8
so I'll resolve it as fixed.
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Subject: [Bug bootstrap/87788] [9 Regression] Bootstrap fails for x86_64-apple-darwin* with default languages selection after D addition.
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--- Comment #11 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Iain Buclaw from comment #10)
> (In reply to Iain Sandoe from comment #4)
> > (In reply to Iain Buclaw from comment #3)
> > > Thanks, I'm just going to try building it now.
> >
> > didn't get much further - kinda looks like something isn't working right
> > with Version() such that the OSX/Darwin versions of the section refs are not
> > getting used - hopefully, it's just config stuff and will be obvious to you.
>
> To begin with this directive.
>
> .section minfo
>
> Should be:
>
> .section __DATA,minfo
>
> Looks like something new for the D language back-end stuff to handle.
OK - but I noticed there was a __DATA,__minfodata section referenced in
libphobos//libdruntime/rt/sections_osx.d
.. which maybe misled me to believe that was the intended section?
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Subject: [Bug driver/87769] GCC build from source uses headers and libraries from directories host machine.
Date: Tue, 30 Oct 2018 22:27:00 -0000
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--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
On Tue, 30 Oct 2018, mte.zych at gmail dot com wrote:
> ../gcc-source/configure --build=x86_64-linux-gnu \
> --host=x86_64-linux-gnu \
> --target=x86_64-linux-gnu \
If host = target that's a native compiler, and searches native system
library directories. If you don't want that you need to configure with
different host and target values (and probably use --with-sysroot= to
point to an image of the native system library directories).
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Subject: [Bug fortran/85896] ICE in gfc_convert_constant(): Unexpected type
Date: Tue, 30 Oct 2018 23:04:00 -0000
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--- Comment #8 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Author: tkoenig
Date: Tue Oct 30 23:04:10 2018
New Revision: 265649
URL: https://gcc.gnu.org/viewcvs?rev=265649&root=gcc&view=rev
Log:
2018-10-30 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/85896
* simplify.c (simplify_min_max): Do not convert the type of the
return expression.
2018-10-30 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/85896
* gfortran.dg/min_max_type.f90: New test.
Added:
trunk/gcc/testsuite/gfortran.dg/min_max_type.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/simplify.c
trunk/gcc/testsuite/ChangeLog
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Subject: [Bug fortran/85896] ICE in gfc_convert_constant(): Unexpected type
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85896
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #9 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Fixed on trunk.
This is not a particularly bad bug (a workaround is easy),
so I won't backport.
>From gcc-bugs-return-619721-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 23:21:03 2018
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From: "fgsimperium at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/87820] New: Explicit user-defined casting inside a template class working in implicit conversion inside function template
Date: Tue, 30 Oct 2018 23:21:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87820
Bug ID: 87820
Summary: Explicit user-defined casting inside a template class
working in implicit conversion inside function
template
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
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Let's consider this class definition:
template <typename T>
class Test{
public:
Test() {}
explicit operator T() const { return T(); }
};
Then this code below fails to compile (as expected):
int main(){
Test<unsigned> a(10);
unsigned j = a; // error: cannot convert 'Test<unsigned int>' to 'unsigned
int' in initialization
}
But this other code compiles fine:
template<typename T>
void test(){
Test<T> a(10);
T j = a; // This should be an error
}
int main(){
test<unsigned>();
}
The second snippet allows an implicit conversion from Test<T> to T, even though
the casting is declared 'explicit'.
It's been tested in every compiler version from 4.5.3 to 8.2. The command line
options are (in Ubuntu 16.04 LTS):
-std=c++0x -Wall -Wextra -pedantic # c++14 an c++17 have the same behaviour
>From gcc-bugs-return-619722-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Oct 30 23:47:22 2018
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From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/87821] New: pdp11 ICE on overaligned local variable: REG_POINTER used with unexpected rtx code 'const_int' in mark_reg_pointer
Date: Tue, 30 Oct 2018 23:47:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87821
Bug ID: 87821
Summary: pdp11 ICE on overaligned local variable: REG_POINTER
used with unexpected rtx code 'const_int' in
mark_reg_pointer
Product: gcc
Version: 9.0
Status: UNCONFIRMED
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Compiling the following snippet with a pdp11-aout cross-compiler results in the
ICE below. This came up while testing a fix for pr87795.
$ cat t.c && /ssd/build/pdp11-aout/gcc-svn/gcc/xgcc -B
/ssd/build/pdp11-aout/gcc-svn/gcc -S -Wall t.c
#define A 0x10000000 >> 12
void f (void*);
void g (void)
{
__attribute__ ((aligned (A))) int i;
// _Static_assert (_Alignof (i) == A);
f (&i);
}
during RTL pass: expand
t.c: In function ‘g’:
t.c:5:6: internal compiler error: RTL flag check: REG_POINTER used with
unexpected rtx code 'const_int' in mark_reg_pointer, at emit-rtl.c:1460
5 | void g (void)
| ^
0xed5d6d rtl_check_failed_flag(char const*, rtx_def const*, char const*, int,
char const*)
/ssd/src/gcc/svn/gcc/rtl.c:939
0xa6ad43 mark_reg_pointer(rtx_def*, int)
/ssd/src/gcc/svn/gcc/emit-rtl.c:1460
0xa93de2 get_dynamic_stack_base(poly_int<1u, long>, unsigned int)
/ssd/src/gcc/svn/gcc/explow.c:1606
0x939180 expand_stack_vars
/ssd/src/gcc/svn/gcc/cfgexpand.c:1208
0x93c56b expand_used_vars
/ssd/src/gcc/svn/gcc/cfgexpand.c:2281
0x94a9ff execute
/ssd/src/gcc/svn/gcc/cfgexpand.c:6268
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
>From gcc-bugs-return-619723-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 31 00:11:09 2018
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From: "romain.geissler at amadeus dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/87822] New: [regression 6/7/8/9] Binary incompatibility in std::pair introduced by PR 86751
Date: Wed, 31 Oct 2018 00:11:00 -0000
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Bug ID: 87822
Summary: [regression 6/7/8/9] Binary incompatibility in
std::pair introduced by PR 86751
Product: gcc
Version: 9.0
Status: UNCONFIRMED
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Hi,
I am having core dumps when mixing libraries built with gcc 6.4.1 and the final
gcc 6.5.0 (I know gcc 6 branch is closed, but since the incompatibility is
about a std::pair type that is quite commonly used I guess this is still
valid). You have the exact same incompatibility with early gcc 7 vs newest gcc
7, early gcc 8 vs newest gcc 8.
See this simple snippet that builds fine with both gcc 6.4 and 6.5 shows the
change of type size (on x64):
#include <utility>
#include <string>
#if __GNUC__ == 6 && __GNUC_MINOR__ <= 4
static_assert(sizeof(std::pair<std::pair<std::string, std::string>,
std::string>) == 96, "");
#elif __GNUC__ == 6 && __GNUC_MINOR__ >= 5
static_assert(sizeof(std::pair<std::pair<std::string, std::string>,
std::string>) == 104, ""); // Size of type changed with r265162
#endif
Shall we revert PR 86751 or find another way to fix it (introduce a new tagged
std::pair type and provide dual abi ?).
Cheers,
Romain
>From gcc-bugs-return-619724-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 31 01:44:50 2018
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From: "achurch+gcc at achurch dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/87489] Spurious -Wnonnull warning
Date: Wed, 31 Oct 2018 01:44:00 -0000
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--- Comment #7 from Andrew Church <achurch+gcc at achurch dot org> ---
Would it be reasonable to have the FE warning trigger only on a literal null
value and not on variables whose values are known to be null? I don't know the
history behind -Wnonnull warning at two separate points, but if the FE warning
is intended to cover cases in which (for example) argument order is
inadvertently switched to pass an otherwise-reasonable null to a nonnull
parameter, then not warning on variables doesn't seem like it would make much
of a difference. And I would not expect the compiler to catch data flow bugs
("variable declared as constant null" -> "constant null variable passed to
nonnull function parameter") at -O0 anyway.
>From gcc-bugs-return-619725-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 31 02:35:12 2018
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Subject: [Bug middle-end/87489] [8/9 Regression] Spurious -Wnonnull warning
Date: Wed, 31 Oct 2018 02:35:00 -0000
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Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|Spurious -Wnonnull warning |[8/9 Regression] Spurious
| |-Wnonnull warning
--- Comment #8 from Martin Sebor <msebor at gcc dot gnu.org> ---
It might be reasonable but it isn't possible to distinguish one from the other.
The value of s has been folded into a constant by the time the warning is
issued, and its origin is lost. In both cases the warning code sees something
like
<integer_cst 0x7fffefb9d948 type <pointer_type 0x7fffefb95930> constant 0>
It's the same consequence of r254930 as bug 87041.
>From gcc-bugs-return-619726-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 31 02:41:37 2018
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Subject: [Bug c/87823] New: strcpy() has bug ???
Date: Wed, 31 Oct 2018 02:41:00 -0000
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Bug ID: 87823
Summary: strcpy() has bug ???
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sometimes lose a byte or not collect when copying overlapping area
-------------------------------------------------------------------------
//(test.c)
#include <stdio.h>
#include <string.h>
char *p1 = "1234567890123456789012345678901234567890";
char *p2;
char buff[100];
main()
{
test1();
}
test1()
{
p2 = buff;
strcpy(p2, p1);
printf("test (%s) \n", p2);
strcpy(p2, p2+1);
printf("test (%s) \n", p2);
}
-------------------------------------------------------------------------
result: [ubunts 18.04 LTS] gcc 7.3.0
OS: ubuntu 18.04 LTS
Hardware : HP dc7900SFF Core 2 duo E7400
test (1234567890123456789012345678901234567890)
test (234567890123456789012345678901234567900)
-------------------------------------------------------------------------
result: [windows XP] gcc 6.3.0
OS: windows XP
Hardware : HP dc7900SFF Core 2 duo E8500
test (1234567890123456789012345678901234567890)
test (234567890123456789012345678901234567890)
-------------------------------------------------------------------------
>From gcc-bugs-return-619728-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 31 02:46:44 2018
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Subject: [Bug c/87823] strcpy() has bug ???
Date: Wed, 31 Oct 2018 02:46:00 -0000
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>sometimes lose a byte or not collect when copying overlapping area
And that is undefined behavior according to the C standard.
>From gcc-bugs-return-619727-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 31 02:46:01 2018
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From: "Schenck Rabenold via gcc-bugs" <gcc-bugs@gcc.gnu.org>
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Subject: =?utf-8?Q?Тickеt#676103171_[nick.brown@thunderbikes.com]_31.10.2018_04:44:54_Dude,I_highly_suggest_you_to_read_this_letter,_simply_to_be_sure_not_a_thing_could_occur_?MIME-Version: 1.0
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug middle-end/87736] New attributes to mark custom alloc/free function pair
2018-10-24 16:38 [Bug c++/87736] New: New attributes to mark custom alloc/free function pair bugzilla@poradnik-webmastera.com
@ 2020-07-09 0:07 ` msebor at gcc dot gnu.org
2020-12-03 22:47 ` msebor at gcc dot gnu.org
2020-12-03 22:48 ` msebor at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: msebor at gcc dot gnu.org @ 2020-07-09 0:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87736
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=94527
Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org
Status|NEW |ASSIGNED
--- Comment #4 from Martin Sebor <msebor at gcc dot gnu.org> ---
See also pr94527 for a related request. I'm working on a solution for GCC 11
(fingers crossed).
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug middle-end/87736] New attributes to mark custom alloc/free function pair
2018-10-24 16:38 [Bug c++/87736] New: New attributes to mark custom alloc/free function pair bugzilla@poradnik-webmastera.com
2020-07-09 0:07 ` [Bug middle-end/87736] " msebor at gcc dot gnu.org
@ 2020-12-03 22:47 ` msebor at gcc dot gnu.org
2020-12-03 22:48 ` msebor at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: msebor at gcc dot gnu.org @ 2020-12-03 22:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87736
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
Target Milestone|--- |11.0
--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
Implemented GCC 11 in r11-5732.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug middle-end/87736] New attributes to mark custom alloc/free function pair
2018-10-24 16:38 [Bug c++/87736] New: New attributes to mark custom alloc/free function pair bugzilla@poradnik-webmastera.com
2020-07-09 0:07 ` [Bug middle-end/87736] " msebor at gcc dot gnu.org
2020-12-03 22:47 ` msebor at gcc dot gnu.org
@ 2020-12-03 22:48 ` msebor at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: msebor at gcc dot gnu.org @ 2020-12-03 22:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87736
Bug 87736 depends on bug 87731, which changed state.
Bug 87731 Summary: Detection of mismatched alloc/free pairs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87731
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-12-03 22:48 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-10-24 16:38 [Bug c++/87736] New: New attributes to mark custom alloc/free function pair bugzilla@poradnik-webmastera.com
2020-07-09 0:07 ` [Bug middle-end/87736] " msebor at gcc dot gnu.org
2020-12-03 22:47 ` msebor at gcc dot gnu.org
2020-12-03 22:48 ` msebor at gcc dot gnu.org
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