* [Bug debug/86964] [7/8 Regression] Too many debug symbols included, especially for extern globals
[not found] <bug-86964-4@http.gcc.gnu.org/bugzilla/>
@ 2019-05-16 7:27 ` rguenth at gcc dot gnu.org
2021-05-14 10:58 ` [Bug debug/86964] [8 " jakub at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: rguenth at gcc dot gnu.org @ 2019-05-16 7:27 UTC (permalink / raw)
To: gcc-bugs
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86964
--- Comment #16 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Thomas De Schampheleire from comment #15)
> Created attachment 46361 [details]
> Make -feliminate-unused-debug-symbols the default
>
> Attached patch makes -feliminate-unused-debug-symbols the default.
>
> I also updated the documentation (I hope it is correct). Note that I removed
> the explicit reference to 'stabs' format, as it seems no longer correct as
> DWARF is supported too.
>
> Is this the correct way forward?
Yes, I think so. Can you post it to gcc-patches@ with an appropriate
ChangeLog please? I can take care of applying it.
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Subject: [Bug target/90424] memcpy into vector builtin not optimized
Date: Thu, 16 May 2019 08:04:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90424
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu May 16 08:03:49 2019
New Revision: 271279
URL: https://gcc.gnu.org/viewcvs?rev=271279&root=gcc&view=rev
Log:
2019-05-16 Richard Biener <rguenther@suse.de>
PR tree-optimization/90424
* tree-ssa.c (non_rewritable_lvalue_p): Handle inserts from
aligned subvectors.
(execute_update_addresses_taken): Likewise.
* tree-cfg.c (verify_gimple_assign_ternary): Likewise.
* g++.target/i386/pr90424-1.C: New testcase.
* g++.target/i386/pr90424-2.C: Likewise.
Added:
trunk/gcc/testsuite/g++.target/i386/pr90424-1.C
trunk/gcc/testsuite/g++.target/i386/pr90424-2.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-cfg.c
trunk/gcc/tree-ssa.c
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Subject: [Bug fortran/90329] Incompatibility between gfortran and C lapack calls
Date: Thu, 16 May 2019 08:13:00 -0000
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--- Comment #32 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
BTW, as can be seen on https://fortran.godbolt.org/z/ckMt1t
it is a pure luck that these bogus C/C++ wrappers seem to work, if one tries
simple
subroutine foo (a, b, c, d, e, f, g, h)
integer :: b, c, d, e, f, g, h
character(len=1) :: a
call bar (a, b, c, d, e, f, g, h)
end subroutine foo
then at -O2 both older gfortran and ifort emit a tail call, which will
overwrite the hidden string length argument, so if one prototypes this as
void foo_ (char *a, blas_int b, blas_int c, blas_int d, blas_int e, blas_int f,
blas_int g, blas_int h);
and calls it with say foo_ ("1", 2, 3, 4, 5, 6, 7, 8); then it will overwrite
some variables in the caller both with older gfortran and with ifort.
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Subject: [Bug debug/90494] [7/8/9/10 Regression] ICE using a released ssaname
Date: Thu, 16 May 2019 08:19:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-05-16
CC| |marxin at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Known to work| |6.5.0
Version|10.0 |7.4.0
Summary|ICE using a released |[7/8/9/10 Regression] ICE
|ssaname |using a released ssaname
Ever confirmed|0 |1
Known to fail| |7.4.0, 8.3.0, 9.1.0
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started with Richi's r235817.
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/90424] memcpy into vector builtin not optimized
Date: Thu, 16 May 2019 08:19:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |NEW
CC| |jakub at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org,
| |rsandifo at gcc dot gnu.org,
| |uros at gcc dot gnu.org
Assignee|rguenth at gcc dot gnu.org |unassigned at gcc dot gnu.org
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #3)
> OK, so the "easier" way to allow aligned sub-vector inserts produces for
>
> typedef unsigned char v16qi __attribute__((vector_size(16)));
> v16qi load (const void *p)
> {
> v16qi r;
> __builtin_memcpy (&r, p, 8);
> return r;
> }
>
> load (const void * p)
> {
> v16qi r;
> long unsigned int _3;
> v16qi _5;
> vector(8) unsigned char _7;
>
> <bb 2> :
> _3 = MEM[(char * {ref-all})p_2(D)];
> _7 = VIEW_CONVERT_EXPR<vector(8) unsigned char>(_3);
> r_9 = BIT_INSERT_EXPR <r_8(D), _7, 0 (64 bits)>;
> _5 = r_9;
> return _5;
>
> and unfortunately (as I feared)
>
> load:
> .LFB0:
> .cfi_startproc
> movq (%rdi), %rax
> pxor %xmm1, %xmm1
> movaps %xmm1, -24(%rsp)
> movq %rax, -24(%rsp)
> movdqa -24(%rsp), %xmm0
> ret
So we're now at this state. This is where either simplifications
or canonicalizations on SSA can be made, middle-end changes to
BIT_INSERT_EXPR expansion, possibly via extending vec_set
in a similar way vec_init was. Note vec_set can end up as
(subreg:N
(vec_select
(vec_concat:V2I
(subreg:VI into:N)
(vec_duplicate:VI (subreg:I to_insert:M))
(... )))
when a proper (vector) integer mode exists to cover the insertion
and when a proper 2xwide vector mode exists for the concat.
You could argue that
GIMPLE should also use permutes for inserts (but then not use
CONSTRUCTOR for the splat). That is, I think both GIMPLE and RTL
could use some streamlining here (for the RTL parts that's always
difficult because you have to adjust many targets). RTL
definitely misses a vec_perm operation to consolidate vec_select
and vec_merge.
I'm not going to work on that part for this moment.
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Subject: [Bug debug/90494] [7/8/9/10 Regression] ICE using a released ssaname
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Target Milestone|--- |7.5
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Subject: [Bug tree-optimization/90106] builtin sqrt() ignoring libm's sqrt call result
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--- Comment #10 from junma at gcc dot gnu.org ---
Author: junma
Date: Thu May 16 08:21:17 2019
New Revision: 271281
URL: https://gcc.gnu.org/viewcvs?rev=271281&root=gcc&view=rev
Log:
PR tree-optimization/90106
* tree-call-cdce.c (shrink_wrap_one_built_in_call_with_conds): Add
new parameter as new internal function call, also move it to new
basic block.
(use_internal_fn): Pass internal function call to
shrink_wrap_one_built_in_call_with_conds.
gcc/testsuite
* gcc.dg/cdce1.c: Check tailcall code generation after cdce pass.
* gcc.dg/cdce2.c: Likewise.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/cdce1.c
trunk/gcc/testsuite/gcc.dg/cdce2.c
trunk/gcc/tree-call-cdce.c
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Subject: [Bug middle-end/90501] New: [10 regression] ICE: address taken, but ADDRESSABLE bit not set
Date: Thu, 16 May 2019 08:24:00 -0000
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Bug ID: 90501
Summary: [10 regression] ICE: address taken, but ADDRESSABLE
bit not set
Product: gcc
Version: 10.0
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CC: ibuclaw at gcc dot gnu.org
Target Milestone: ---
Target: sparc-sun-solaris2.11, i386-pc-solaris2.11
Between 20190514 (r271183) and 20190515 (r271254), a single D testcase started
to FAIL on both 32-bit Solaris/SPARC and x86:
+FAIL: gdc.test/runnable/mars1.d -O2 (internal compiler error)
+FAIL: gdc.test/runnable/mars1.d -O2 -finline-functions (internal compiler
error)
In function 'test14782':
d21: error: address taken, but ADDRESSABLE bit not set
PHI argument
&result;
for PHI node
_21 = PHI <&result(2), _22(4)>
during GIMPLE pass: einline
d21: internal compiler error: verify_ssa failed
0x937fdd9 verify_ssa(bool, bool)
/vol/gcc/src/hg/trunk/local/gcc/tree-ssa.c:1193
0x90296e8 execute_function_todo
/vol/gcc/src/hg/trunk/local/gcc/passes.c:1970
0x902a3b2 do_per_function
/vol/gcc/src/hg/trunk/local/gcc/passes.c:1638
0x902a4a0 execute_todo
/vol/gcc/src/hg/trunk/local/gcc/passes.c:2017
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Subject: [Bug middle-end/90501] [10 regression] ICE: address taken, but ADDRESSABLE bit not set
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Rainer Orth <ro at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Target Milestone|--- |10.0
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Subject: [Bug middle-end/90502] New: [10 regression] gcc.dg/tree-ssa/vector-6.c FAILs
Date: Thu, 16 May 2019 08:31:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90502
Bug ID: 90502
Summary: [10 regression] gcc.dg/tree-ssa/vector-6.c FAILs
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
Target Milestone: ---
Target: i?86, x86_64, aarch64, powerpc, powerpc64le
Between 20190514 (r271183) and 20190515 (r271254), the
gcc.dg/tree-ssa/vector-6.c
testcase regressed on several targets:
+FAIL: gcc.dg/tree-ssa/vector-6.c scan-tree-dump-times ccp1 "Now a gimple
register: v" 4
I'm seeing it on both 32 and 64-bit Solaris/x86, but there are also several
other
gcc-testresults reports.
>From gcc-bugs-return-644014-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:31:58 2019
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Rainer Orth <ro at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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>From gcc-bugs-return-644016-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:36:24 2019
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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/90496] ICE in RTL pass pro_and_epilogue when all of `-flto -fsanitizedress -fstack-usage` are used on trivial source
Date: Thu, 16 May 2019 08:36:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2019-05-16
CC| |marxin at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |marxin at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, I've got a patch for it.
>From gcc-bugs-return-644015-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:36:10 2019
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Subject: [Bug target/90503] New: [10 regression] gcc.target/i386/pr22076.c FAILs
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90503
Bug ID: 90503
Summary: [10 regression] gcc.target/i386/pr22076.c FAILs
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
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Target Milestone: ---
Target: i?86, x86_64
Between 20190514 (r271183) and 20190515 (r271254), the
gcc.target/i386/pr22076.c
testcase regressed on several x86 targets:
+FAIL: gcc.dg/tree-ssa/vector-6.c scan-tree-dump-times ccp1 "Now a gimple
register: v" 4
I'm seeing it on 64-bit Solaris/x86, but there are also reports for Linux/x86
and Darwin/x86_64.
>From gcc-bugs-return-644017-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:36:33 2019
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Subject: [Bug target/90503] [10 regression] gcc.target/i386/pr22076.c FAILs
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Rainer Orth <ro at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |10.0
>From gcc-bugs-return-644018-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:38:00 2019
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Subject: [Bug target/90503] [10 regression] gcc.target/i386/pr22076.c FAILs
Date: Thu, 16 May 2019 08:38:00 -0000
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--- Comment #1 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
> Between 20190514 (r271183) and 20190515 (r271254), the
> gcc.target/i386/pr22076.c
> testcase regressed on several x86 targets:
>
> +FAIL: gcc.dg/tree-ssa/vector-6.c scan-tree-dump-times ccp1 "Now a gimple
> register: v" 4
Wrong line, of course:
+FAIL: gcc.target/i386/pr22076.c scan-assembler-times movq 3
>From gcc-bugs-return-644019-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:38:59 2019
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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/90491] simple operation with unsigned long integer and conversion to float not vectorized
Date: Thu, 16 May 2019 08:38:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Target| |x86_64-*-*, i?86-*-*
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-05-16
CC| |rguenth at gcc dot gnu.org,
| |uros at gcc dot gnu.org
Blocks| |53947
Summary|simple operation with |simple operation with
|unsigned integer and |unsigned long integer and
|conversion to float/double |conversion to float not
|not vectorized |vectorized
Ever confirmed|0 |1
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue is the target claims it has no support for vectorized
unsigned long int to float conversion. Your int() cast makes it a
signed int to float conversion which is just cvtpd2ps.
What the vectorizer doesn't do but eventually could, with
knowledge of the value-range of i, is first truncate the unsigned long
vector to a unsigned int vector and then do the conversion to float.
Or alternatively use a vector long to vector double and then vector
double to vector float conversion series.
Or the target could hide these tricks from us.
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 target/90492] simple array-copy not use available simd-registers
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Target|x86_64-suse-linux |x86_64-*-*, i?86-*-*
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-05-16
CC| |hjl.tools at gmail dot com
Ever confirmed|0 |1
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. This is probably the generic block-copying (move_by_pieces)
code expanding
MEM[(char * {ref-all})&b] = MEM[(char * {ref-all})&a];
and the target directing it to at most use SSE regs:
/* MOVE_MAX_PIECES is the number of bytes at a time which we can
move efficiently, as opposed to MOVE_MAX which is the maximum
number of bytes we can move with a single instruction.
??? We should use TImode in 32-bit mode and use OImode or XImode
if they are available. But since by_pieces_ninsns determines the
widest mode with MAX_FIXED_MODE_SIZE, we can only use TImode in
64-bit mode. */
#define MOVE_MAX_PIECES \
((TARGET_64BIT \
&& TARGET_SSE2 \
&& TARGET_SSE_UNALIGNED_LOAD_OPTIMAL \
&& TARGET_SSE_UNALIGNED_STORE_OPTIMAL) \
? GET_MODE_SIZE (TImode) : UNITS_PER_WORD)
not sure if the MAX_FIXED_MODE_SIZE comment is still valid.
>From gcc-bugs-return-644021-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:49:20 2019
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Subject: [Bug c++/90494] [7/8/9/10 Regression] ICE using a released ssaname
Date: Thu, 16 May 2019 08:49:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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Priority|P3 |P2
Component|debug |c++
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
;; Function void localLayer(long int, long int, void*) (null)
;; enabled by -tree-original
{
float[0:(sizetype) (SAVE_EXPR <(ssizetype) Y + -1>)][0:(sizetype) (SAVE_EXPR
<(ssizetype) X + -1>)] * ary = (float[0:(sizetype) (SAVE_EXPR <(ssizetype) Y +
-1>)][0:(sizetype) (SAVE_EXPR <(ssizetype) X + -1>)] *) region;
# DEBUG BEGIN STMT;
float[0:(sizetype) (SAVE_EXPR <(ssizetype) Y + -1>)][0:(sizetype)
(SAVE_EXPR <(ssizetype) X + -1>)] * ary = (float[0:(sizetype) (SAVE_EXPR
<(ssizetype) Y + -1>)][0:(sizetype) (SAVE_EXPR <(ssizetype) X + -1>)] *)
region;
# DEBUG BEGIN STMT;
<<cleanup_point <<< Unknown tree: expr_stmt
EAT (((sizetype) (SAVE_EXPR <(ssizetype) X + -1>) + 1) * ((sizetype)
(SAVE_EXPR <(ssizetype) Y + -1>) + 1);, (void *) ary;) >>>>>;
}
I see no DECL_EXPR for the type -> frontend bug with latent wrong-code before
the cited rev./ICE.
I also believe we have duplicates for this.
>From gcc-bugs-return-644022-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:54:54 2019
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Subject: [Bug gcov-profile/90380] gcov issue: gets stuck (infinite loop?) while analyzing coverage on Fortran project
Date: Thu, 16 May 2019 08:54:00 -0000
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--- Comment #41 from Victor <vsande at cimne dot upc.edu> ---
(In reply to Martin Liška from comment #40)
> Fixed on all active branches.
I can confirm that coverage is working for us compiling gcc from gcc-9-branch
from https://github.com/gcc-mirror/gcc mirror repository.
Thanks for the great work!
>From gcc-bugs-return-644023-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:56:07 2019
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug driver/90496] ICE in RTL pass pro_and_epilogue when all of `-flto -fsanitizedress -fstack-usage` are used on trivial source
Date: Thu, 16 May 2019 08:56:00 -0000
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--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed with GCC 8:
Program received signal SIGSEGV, Segmentation fault.
0x0000000001ce24bb in unix_lbasename (name=0x0)
at /space/rguenther/src/svn/gcc-8-branch/libiberty/lbasename.c:53
53 for (base = name; *name; name++)
(gdb) bt
#0 0x0000000001ce24bb in unix_lbasename (name=0x0)
at /space/rguenther/src/svn/gcc-8-branch/libiberty/lbasename.c:53
#1 0x0000000001ce2561 in lbasename (name=0x0)
at /space/rguenther/src/svn/gcc-8-branch/libiberty/lbasename.c:82
#2 0x0000000000ef0468 in output_stack_usage ()
at /space/rguenther/src/svn/gcc-8-branch/gcc/toplev.c:1024
#3 0x0000000000aef817 in rest_of_handle_thread_prologue_and_epilogue ()
at /space/rguenther/src/svn/gcc-8-branch/gcc/function.c:6546
#4 0x0000000000aef865 in (anonymous
namespace)::pass_thread_prologue_and_epilogue::execute (this=0x2a7a6d0)
at /space/rguenther/src/svn/gcc-8-branch/gcc/function.c:6576
where we seem to not consider that a location might have a NULL loc.file:
(gdb) p debug_tree (current_function_decl)
<function_decl 0x7ffff669cc00 _GLOBAL__sub_I_00099_0_main
type <function_type 0x7ffff689ac78
type <void_type 0x7ffff688ef18 void VOID
align:8 warn_if_not_align:0 symtab:0 alias-set -1
structural-equality
pointer_to_this <pointer_type 0x7ffff68950a8>>
QI
size <integer_cst 0x7ffff687acd8 constant 8>
unit-size <integer_cst 0x7ffff687acf0 constant 1>
align:8 warn_if_not_align:0 symtab:0 alias-set -1 structural-equality
arg-types <tree_list 0x7ffff688daa0 value <void_type 0x7ffff688ef18
void>>
pointer_to_this <pointer_type 0x7ffff6698348>>
asm_written used static ignored uninlinable QI (null):0:0 align:8
warn_if_not_align:0 initial <block 0x7ffff66a2060>
result <result_decl 0x7ffff6884258 D.4688 type <void_type 0x7ffff688ef18
void>
VOID (null):0:0
align:8 warn_if_not_align:0 context <function_decl 0x7ffff669cc00
_GLOBAL__sub_I_00099_0_main>>
struct-function 0x7ffff66a3160>
(gdb) p current_function_decl->decl_minimal.locus
$5 = 0
(gdb) p current_function_decl->decl_common.artificial_flag
$6 = 1
it probably doesn't make sense to print stack usage for compiler-generated
functions? Or at least UNKNOWN_LOCATION should be handled better.
Eric?
Probably not really LTO specific.
>From gcc-bugs-return-644024-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:56:46 2019
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Subject: [Bug driver/90496] ICE in RTL pass pro_and_epilogue when all of `-flto -fsanitizedress -fstack-usage` are used on trivial source
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----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
changes crossed, Eric may still have a preference here.
>From gcc-bugs-return-644025-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:58:08 2019
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Subject: [Bug fortran/90498] [8/9/10 Regression] ICE with select type/associate and derived type argument containing class(*)
Date: Thu, 16 May 2019 08:58:00 -0000
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What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P4
Version|unknown |9.1.0
Target Milestone|--- |8.4
Summary|[8,9 Regression] ICE with |[8/9/10 Regression] ICE
|select type/associate and |with select type/associate
|derived type argument |and derived type argument
|containing class(*) |containing class(*)
>From gcc-bugs-return-644026-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 08:59:49 2019
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Subject: [Bug target/90500] ICE error in copy_forbiden
Date: Thu, 16 May 2019 08:59:00 -0000
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----------------------------------------------------------------------------
CC| |marxin at gcc dot gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
We're not really expecting to call tree_versionable_function_p/copy_forbidden
for a function without a body. So this is an error in the target cloning pass
somehow looking at the wrong cgraph-node/function?
>From gcc-bugs-return-644027-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 09:00:48 2019
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Subject: [Bug testsuite/90503] [10 regression] gcc.target/i386/pr22076.c FAILs
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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> ---
That's mine, failed to adjust the testcase.
>From gcc-bugs-return-644029-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 09:01:40 2019
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Subject: [Bug testsuite/90502] [10 regression] gcc.dg/tree-ssa/vector-6.c FAILs
Date: Thu, 16 May 2019 09:01:00 -0000
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--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.
>From gcc-bugs-return-644028-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 09:01:29 2019
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Subject: [Bug target/90503] [10 regression] gcc.target/i386/pr22076.c FAILs
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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> ---
Err, the other one.
>From gcc-bugs-return-644030-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 09:05:17 2019
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Subject: [Bug target/90500] ICE error in copy_forbiden
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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> ---
(In reply to Richard Biener from comment #3)
> We're not really expecting to call
> tree_versionable_function_p/copy_forbidden for a function without a body.
> So this is an error in the target cloning pass
> somehow looking at the wrong cgraph-node/function?
Issue is that we have an alias with copy attribute, which leads to have
target_clone on an alias. It's invalid. I've got a patch for it.
>From gcc-bugs-return-644031-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 09:10:21 2019
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Subject: [Bug driver/90496] ICE in RTL pass pro_and_epilogue when all of `-flto -fsanitizedress -fstack-usage` are used on trivial source
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--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #2)
> Confirmed with GCC 8:
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x0000000001ce24bb in unix_lbasename (name=0x0)
> at /space/rguenther/src/svn/gcc-8-branch/libiberty/lbasename.c:53
> 53 for (base = name; *name; name++)
> (gdb) bt
> #0 0x0000000001ce24bb in unix_lbasename (name=0x0)
> at /space/rguenther/src/svn/gcc-8-branch/libiberty/lbasename.c:53
> #1 0x0000000001ce2561 in lbasename (name=0x0)
> at /space/rguenther/src/svn/gcc-8-branch/libiberty/lbasename.c:82
> #2 0x0000000000ef0468 in output_stack_usage ()
> at /space/rguenther/src/svn/gcc-8-branch/gcc/toplev.c:1024
> #3 0x0000000000aef817 in rest_of_handle_thread_prologue_and_epilogue ()
> at /space/rguenther/src/svn/gcc-8-branch/gcc/function.c:6546
> #4 0x0000000000aef865 in (anonymous
> namespace)::pass_thread_prologue_and_epilogue::execute (this=0x2a7a6d0)
> at /space/rguenther/src/svn/gcc-8-branch/gcc/function.c:6576
>
> where we seem to not consider that a location might have a NULL loc.file:
>
> (gdb) p debug_tree (current_function_decl)
> <function_decl 0x7ffff669cc00 _GLOBAL__sub_I_00099_0_main
> type <function_type 0x7ffff689ac78
> type <void_type 0x7ffff688ef18 void VOID
> align:8 warn_if_not_align:0 symtab:0 alias-set -1
> structural-equality
> pointer_to_this <pointer_type 0x7ffff68950a8>>
> QI
> size <integer_cst 0x7ffff687acd8 constant 8>
> unit-size <integer_cst 0x7ffff687acf0 constant 1>
> align:8 warn_if_not_align:0 symtab:0 alias-set -1 structural-equality
> arg-types <tree_list 0x7ffff688daa0 value <void_type 0x7ffff688ef18
> void>>
> pointer_to_this <pointer_type 0x7ffff6698348>>
> asm_written used static ignored uninlinable QI (null):0:0 align:8
> warn_if_not_align:0 initial <block 0x7ffff66a2060>
> result <result_decl 0x7ffff6884258 D.4688 type <void_type 0x7ffff688ef18
> void>
> VOID (null):0:0
> align:8 warn_if_not_align:0 context <function_decl 0x7ffff669cc00
> _GLOBAL__sub_I_00099_0_main>>
> struct-function 0x7ffff66a3160>
>
> (gdb) p current_function_decl->decl_minimal.locus
> $5 = 0
> (gdb) p current_function_decl->decl_common.artificial_flag
> $6 = 1
>
> it probably doesn't make sense to print stack usage for compiler-generated
> functions? Or at least UNKNOWN_LOCATION should be handled better.
Or I'm suggesting to print '(artificial)' as location of the function. One may
be theoretically
interested in the static [cd]tor stack usage.
>
> Eric?
>
> Probably not really LTO specific.
>From gcc-bugs-return-644032-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 09:10:32 2019
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Subject: [Bug gcov-profile/90380] gcov issue: gets stuck (infinite loop?) while analyzing coverage on Fortran project
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--- Comment #42 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Victor from comment #41)
> (In reply to Martin Liška from comment #40)
> > Fixed on all active branches.
>
> I can confirm that coverage is working for us compiling gcc from
> gcc-9-branch from https://github.com/gcc-mirror/gcc mirror repository.
>
> Thanks for the great work!
Glad to hear. I thank you, it was a nice cooperation.
>From gcc-bugs-return-644033-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 09:12:10 2019
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Subject: [Bug middle-end/90501] [10 regression] ICE: address taken, but ADDRESSABLE bit not set
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--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
It's probably Richi's issue.
>From gcc-bugs-return-644035-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu May 16 09:13:57 2019
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Subject: [Bug testsuite/90502] [10 regression] gcc.dg/tree-ssa/vector-6.c FAILs
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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> ---
Fixed.
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90502
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu May 16 09:12:53 2019
New Revision: 271283
URL: https://gcc.gnu.org/viewcvs?rev=271283&root=gcc&view=rev
Log:
2019-05-16 Richard Biener <rguenther@suse.de>
PR testsuite/90502
* gcc.dg/tree-ssa/vector-6.c: Adjust for half of the
transforms happening earlier now.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-ssa/vector-6.c
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Subject: [Bug middle-end/90501] [10 regression] ICE: address taken, but ADDRESSABLE bit not set
Date: Thu, 16 May 2019 09:15:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90501
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Trying to investigate.
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Subject: [Bug middle-end/90478] [10 Regression] ICE in emit_case_dispatch_table at gcc/stmt.c:796
Date: Thu, 16 May 2019 09:16:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90478
Christophe Lyon <clyon at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |clyon at gcc dot gnu.org
--- Comment #7 from Christophe Lyon <clyon at gcc dot gnu.org> ---
The second new testcase (pr90478-2.c) fails with an ICE on aarch64 native
bootstrapped compilers (passes with a cross compiler)
FAIL: gcc.dg/tree-ssa/pr90478-2.c (internal compiler error)
FAIL: gcc.dg/tree-ssa/pr90478-2.c (test for excess errors)
Excess errors:
xgcc: internal compiler error: Segmentation fault signal terminated program cc1
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Subject: [Bug middle-end/90501] [10 regression] ICE: address taken, but ADDRESSABLE bit not set
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Iain Buclaw <ibuclaw at gdcproject dot org> changed:
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--- Comment #3 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
Do you need a minimized test case?
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From: Jonathan Wakely <jwakely@redhat.com>
To: hien <h_y_i_e_n@yahoo.com>
Cc: gcc-bugs@gcc.gnu.org
Subject: Re: mingw-w64 gcc 9.1.0 - cc1plus: internal compiler error: Segmentation fault
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On 16/05/19 06:16 +0000, hien via gcc-bugs wrote:
>Hi folks,
>
>I've encounterd a bug with GCC 9.1.0 on the mingw-w64 target.
>g++ is built as a cross-compiler running on 64-bit GNU/Linux (glibc 2.29, linux 5.1.2)...
>$ x86_64-w64-mingw32-g++ -v
>./XXXX/configure --prefix=/usr --target=x86_64-w64-mingw32 --enable-targets=x86_64-w64-mingw32,mingw32 --with-system-zlib --enable-languages=c,c++ --enable-c-mbchar --enable-__cxa_atexit --disable-libatomic --disable-libgomp --disable-libmpx --disable-libquadmath --disable-libssp --disable-libvtv
>
>Steps to reproduce...
>
>test.cpp:
>static void __stdcall func() {}
>template <typename T> struct foo { virtual ~foo() {} };
>
>int main() {
> foo<decltype(func)> x;
> return 0;
>}
>
>$ x86_64-w64-mingw32-g++ -Wall -Wextra -pedantic -std=c++11 -m32 test.cpp
>cc1plus: internal compiler error: Segmentation fault
>Please submit a full bug report,
>with preprocessed source if appropriate.
>See <https://gcc.gnu.org/bugs/> for instructions.
Hello,
This mailing list is for automated emails from our bug database, not
for reporting bugs.
To report a bug please do as GCC suggested and see
https://gcc.gnu.org/bugs/ for instructions.
>This happens only with the -m32 flag and __stdcall functions.
>
>Regards,
>HY
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