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* [Bug middle-end/77377] [7 Regression] c-c++-common/pr59037.c ICEs with -fpic -msse on i686
[not found] <bug-77377-4@http.gcc.gnu.org/bugzilla/>
@ 2016-08-25 15:14 ` hjl.tools at gmail dot com
0 siblings, 0 replies; only message in thread
From: hjl.tools at gmail dot com @ 2016-08-25 15:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77377
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hjl.tools at gmail dot com
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
It may be caused by r236630.
>From gcc-bugs-return-535907-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 16:13:34 2016
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From: "wschmidt at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/72863] Powerpc64le: redundant swaps when using vec_vsx_ld/st
Date: Thu, 25 Aug 2016 16:13:00 -0000
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Bill Schmidt <wschmidt at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #9 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Work is complete.
>From gcc-bugs-return-535906-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 16:13:09 2016
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From: "wschmidt at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/72863] Powerpc64le: redundant swaps when using vec_vsx_ld/st
Date: Thu, 25 Aug 2016 16:13:00 -0000
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--- Comment #8 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Author: wschmidt
Date: Thu Aug 25 16:12:23 2016
New Revision: 239762
URL: https://gcc.gnu.org/viewcvs?rev=239762&root=gcc&view=rev
Log:
[gcc]
2016-08-25 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline (minus test for POWER9 support)
2016-08-11 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR target/72863
* vsx.md (vsx_load_<mode>): For P8LE, emit swaps at expand time.
(vsx_store_<mode>): Likewise.
[gcc/testsuite]
2016-08-25 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
2016-08-11 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR target/72863
* gcc.target/powerpc/pr72863.c: New test.
Added:
branches/gcc-5-branch/gcc/testsuite/gcc.target/powerpc/pr72863.c
Modified:
branches/gcc-5-branch/gcc/ChangeLog
branches/gcc-5-branch/gcc/config/rs6000/vsx.md
branches/gcc-5-branch/gcc/testsuite/ChangeLog
>From gcc-bugs-return-535908-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 16:24:59 2016
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Subject: [Bug target/69427] gcc-4.9.3 compilation for the cross target m68k-rtems4.11 in i686-Cygwin
Date: Thu, 25 Aug 2016 16:24:00 -0000
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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Last reconfirmed| |2016-08-25
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--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Does this still happen with newer versions of GCC?
>From gcc-bugs-return-535909-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 17:49:09 2016
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From: "dje at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/77378] New: [7 Regression] tree-profile and libgcov assume long long atomic operations are supported
Date: Thu, 25 Aug 2016 17:49:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77378
Bug ID: 77378
Summary: [7 Regression] tree-profile and libgcov assume long
long atomic operations are supported
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: link-failure
Severity: normal
Priority: P3
Component: gcov-profile
Assignee: unassigned at gcc dot gnu.org
Reporter: dje at gcc dot gnu.org
Target Milestone: ---
Target: powerpc*-*-*
The "Various GCOV/PGO improvements" in August 2016 implicitly assume that 64
bit atomic operations are supported in 32 bit mode.
tree-profile.c:
/* __atomic_fetch_add (&counter, 1, MEMMODEL_RELAXED); */
tree addr = tree_coverage_counter_addr (GCOV_COUNTER_ARCS, edgeno);
tree f = builtin_decl_explicit (LONG_LONG_TYPE_SIZE > 32
? BUILT_IN_ATOMIC_FETCH_ADD_8:
BUILT_IN_ATOMIC_FETCH_ADD_4);
libgcov.h:
#if LONG_LONG_TYPE_SIZE > 32
typedef signed gcov_type __attribute__ ((mode (DI)));
typedef unsigned gcov_type_unsigned __attribute__ ((mode (DI)));
#else
typedef signed gcov_type __attribute__ ((mode (SI)));
typedef unsigned gcov_type_unsigned __attribute__ ((mode (SI)));
#endif
libgcov-profiler.c:
__atomic_fetch_add (...)
LONG_LONG_TYPE_SIZE is defined as 64 on PPC32 (both PPC32 Linux and AIX), but
64 bit atomic operations are not supported. GCC emits libcalls, but no library
provides the definition, so profiled programs fail to link.
>From gcc-bugs-return-535910-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 17:50:07 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/77378] [7 Regression] tree-profile and libgcov assume long long atomic operations are supported
Date: Thu, 25 Aug 2016 17:50:00 -0000
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David Edelsohn <dje at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-08-25
CC| |hubicka at gcc dot gnu.org,
| |marxin at gcc dot gnu.org,
| |seurer at gcc dot gnu.org,
| |wschmidt at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from David Edelsohn <dje at gcc dot gnu.org> ---
Confirmed.
>From gcc-bugs-return-535911-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 17:53:27 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/77378] [7 Regression] tree-profile and libgcov assume long long atomic operations are supported
Date: Thu, 25 Aug 2016 17:53:00 -0000
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--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
libatomic should provide the functions.
>From gcc-bugs-return-535912-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 17:55:06 2016
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From: "fritzoreese at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/77327] AddressSanitizer: heap-use-after-free gcc-trunk-239276/gcc/fortran/interface.c:403 in compare_components
Date: Thu, 25 Aug 2016 17:55:00 -0000
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--- Comment #7 from Fritz Reese <fritzoreese at gmail dot com> ---
(In reply to Vittorio Zecca from comment #5)
> The test case you propose, dec_structure_13.f90, does not trigger the asan
> memory checker.
Sorry if it was unclear, the new testcase dec_structure_13.f90 tests a separate
regression that is also fixed by the patch (see the comments in my post on the
mailing list).
(In reply to Vittorio Zecca from comment #5)
> (In reply to Fritz Reese from comment #3)
> > I would appreciate
> > ideas for a testcase I can commit with the aforementioned patch to
> > ensure this PR isn't regressed.
> As I wrote before, the test case gfortran.dg/import4.f90 does trigger
> the asan memory checker.
Is that sufficient then to test the regression, or need I add another testcase
to my patch?
(In reply to Vittorio Zecca from comment #5)
> In your test case I do not understand the final statement "call
> sub2(u2)" because
> sub2 is not defined.
That is a typo - "sub3" from dec_structure_13.f90 line 40 should be named
"sub2". That's what I get for forgetting "implicit none"...
(In reply to Vittorio Zecca from comment #6)
> Fritz, do you have a -fsanitize=address version of gfortran, in
> particular of f951?
I was not aware of the capability. I will build one.
>From gcc-bugs-return-535913-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:05:34 2016
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From: "dje at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/77378] [7 Regression] tree-profile and libgcov assume long long atomic operations are supported
Date: Thu, 25 Aug 2016 18:05:00 -0000
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--- Comment #3 from David Edelsohn <dje at gcc dot gnu.org> ---
-ftree-profile and gcov don't link against libatomic.
>From gcc-bugs-return-535914-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:12:05 2016
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From: "richard-gccbugzilla at metafoo dot co.uk" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/77379] New: incorrect mangling for non-virtual adjustor thunk (missing abi tag)
Date: Thu, 25 Aug 2016 18:12:00 -0000
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Bug ID: 77379
Summary: incorrect mangling for non-virtual adjustor thunk
(missing abi tag)
Product: gcc
Version: 6.0
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GCC does not emit ABI tags from a function return type when mangling an
adjustor thunk (see example in https://llvm.org/bugs/show_bug.cgi?id=28997).
If this is intentional, and there's some good reason to omit the abi_tag
mangling here, let us know and we'll suppress them from Clang too.
>From gcc-bugs-return-535915-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:14:31 2016
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Subject: [Bug fortran/77327] AddressSanitizer: heap-use-after-free gcc-trunk-239276/gcc/fortran/interface.c:403 in compare_components
Date: Thu, 25 Aug 2016 18:14:00 -0000
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--- Comment #8 from Vittorio Zecca <zeccav at gmail dot com> ---
Yes, it seems to me that import4.f90 is sufficient to trigger the asan
memory checker.
How strange, even without "implicit none" the loader should have complained
that "sub2" was referenced but undefined. This is how I find the bug.
It is not that trivial to build a sanitized version of
gcc/g++/gfortran but nonetheless
it is possible.
Once you have a sanitized gfortran and f951 then you can check it
against the gcc testsuite
Fortran files, as I did.
>From gcc-bugs-return-535917-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:18:47 2016
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Subject: [Bug middle-end/61409] [5/6/7 regression] -Wmaybe-uninitialized false-positive with -O2
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--- Comment #22 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Created attachment 39499
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39499&action=edit
untested patch v1
I think I see what Jeff is getting at.
Here is an untested patch exploring the idea of ignoring unguarded uses if we
can prove that the guards for such uses are invalidated by the uninitialized
operand paths being executed.
Preliminary tests show that it fixes the testcase in the PR without introducing
any regressions in the rest of the uninit tests:
make check-gcc RUNTESTFLAGS=dg.exp=uninit*
As the "NOTE:" in the code states, we could be much smarter when invalidating
predicates, but for now let's do straight negation which works for the simple
case.
Does this seem like a reasonable approach?
>From gcc-bugs-return-535916-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:18:07 2016
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Subject: [Bug c++/67776] No warning when using asm with non-static variable
Date: Thu, 25 Aug 2016 18:18:00 -0000
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--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to David from comment #0)
> While not particularly interesting of itself, this makes me wonder what
> other c error checking might be getting skipped in c++.
Or rather the code is in the C front-end but not in the C++ front-end. The C
and C++ front-ends don't share all code; just some of it.
>From gcc-bugs-return-535918-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:20:57 2016
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Subject: [Bug target/67733] illumos needs a new target triple
Date: Thu, 25 Aug 2016 18:20:00 -0000
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|*-*-solaris* |
Summary|elfdump and readelf in perl |illumos needs a new target
|scripts should to use env |triple
|vars ELFDUMP and READELF |
Severity|normal |enhancement
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed though as I mentioned illumos needs a fully new target triplet as it
is incompatible with Solaris now.
>From gcc-bugs-return-535919-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:21:54 2016
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Subject: [Bug c++/67737] [C++1z] ICE in make_decl_rtl, at varasm.c:1299
Date: Thu, 25 Aug 2016 18:21:00 -0000
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--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Vittorio Zecca from comment #7)
> With gcc 6.1.0, maybe a shorter reproducer
> /* gcc -fcheck-pointer-bounds -mmpx p.c */
That is a different issue and should be filed separately if not already.
>From gcc-bugs-return-535920-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:33:08 2016
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From: "gerhard.steinmetz.fortran@t-online.de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/77380] New: ICE in gfc_check_dependency, at fortran/dependency.c:1255
Date: Thu, 25 Aug 2016 18:33:00 -0000
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Bug ID: 77380
Summary: ICE in gfc_check_dependency, at
fortran/dependency.c:1255
Product: gcc
Version: 7.0
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Invalid code, compiled at level -Og, -Os, -O1 or higher,
with debugging compiler (--enable-checking=yes) :
$ cat z1.f90
program p
integer :: z(2)[*] = 1
z(:)[1] = z(:)[*]
end
$ gfortran-7-20160821 -O2 -fcoarray=lib z1.f90
z1.f90:3:14:
z(:)[1] = z(:)[*]
1
Error: Coindex of codimension 1 must be a scalar at (1)
f951: internal compiler error: in gfc_check_dependency, at
fortran/dependency.c:1255
0x714b59 gfc_check_dependency(gfc_expr*, gfc_expr*, bool)
../../gcc/fortran/dependency.c:1255
0x7b0a2b optimize_assignment
../../gcc/fortran/frontend-passes.c:1181
0x7b0a2b optimize_code
../../gcc/fortran/frontend-passes.c:221
0x7b3459 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
../../gcc/fortran/frontend-passes.c:3392
0x7b44b4 optimize_namespace
../../gcc/fortran/frontend-passes.c:1005
0x7b4670 gfc_run_passes(gfc_namespace*)
../../gcc/fortran/frontend-passes.c:132
0x6eeeb7 gfc_resolve(gfc_namespace*)
../../gcc/fortran/resolve.c:15601
0x6da1aa resolve_all_program_units
../../gcc/fortran/parse.c:5855
0x6da1aa gfc_parse_file()
../../gcc/fortran/parse.c:6107
0x71c622 gfc_be_parse_file
../../gcc/fortran/f95-lang.c:198
>From gcc-bugs-return-535921-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:34:03 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/77380] ICE in gfc_check_dependency, at fortran/dependency.c:1255
Date: Thu, 25 Aug 2016 18:34:00 -0000
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--- Comment #1 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
No ICE with -fcoarray=single :
$ gfortran-7-20160821 -O2 -fcoarray=single z1.f90
z1.f90:3:14:
z(:)[1] = z(:)[*]
1
Error: Coindex of codimension 1 must be a scalar at (1)
Bailed out with 5, 6 (official, --enable-checking=release) :
$ gfortran-6 -O2 -fcoarray=lib z1.f90
z1.f90:3:14:
z(:)[1] = z(:)[*]
1
Error: Coindex of codimension 1 must be a scalar at (1)
(null):0: confused by earlier errors, bailing out
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From: "gerhard.steinmetz.fortran@t-online.de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/77381] New: ICE in resolve_equivalence, at fortran/resolve.c:15149
Date: Thu, 25 Aug 2016 18:36:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77381
Bug ID: 77381
Summary: ICE in resolve_equivalence, at fortran/resolve.c:15149
Product: gcc
Version: 7.0
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For versions down to at least 4.8 :
$ cat z1.f90
module m
character(3) :: a(2), b(2)
equivalence (a(2)(1:2), b(1)(2:3))
end
program p
use m
end
$ cat z2.f90
module m
character(3) :: a(2), b(2)
equivalence (a(2)(1:3), b(1)(1:3))
end
program p
use m
end
$ cat z3.f90 ## similar to z2.f90, no ICE
module m
character(3) :: a(2), b(2)
equivalence (a(2)(:), b(1)(:))
end
program p
use m
end
$ gfortran-7-20160821 z1.f90
f951: internal compiler error: in resolve_equivalence, at
fortran/resolve.c:15149
0x6f3717 resolve_equivalence
../../gcc/fortran/resolve.c:15149
0x6f3717 resolve_types
../../gcc/fortran/resolve.c:15515
0x6eee7c gfc_resolve(gfc_namespace*)
../../gcc/fortran/resolve.c:15593
0x6da1aa resolve_all_program_units
../../gcc/fortran/parse.c:5855
0x6da1aa gfc_parse_file()
../../gcc/fortran/parse.c:6107
0x71c622 gfc_be_parse_file
../../gcc/fortran/f95-lang.c:198
>From gcc-bugs-return-535923-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:39:18 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/77382] New: ICE: verify_gimple failed -- expand_expr_real_1, at expr.c:9651
Date: Thu, 25 Aug 2016 18:39:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77382
Bug ID: 77382
Summary: ICE: verify_gimple failed -- expand_expr_real_1, at
expr.c:9651
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
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With invalid code, and configured with --enable-checking=yes :
$ cat z1.f90
subroutine s
entry f(s)
end
call s
end
$ cat z2.f90
program p
call s
end
subroutine s
entry f(s)
end
$ gfortran-7-20160821 z1.f90
z1.f90:4:0:
call s
Error: Local declaration from a different function
s
z1.f90:4:0:
call s
note: in statement
s ();
z1.f90:4:0:
call s
internal compiler error: verify_gimple failed
0xc5ed96 verify_gimple_in_cfg(function*, bool)
../../gcc/tree-cfg.c:5212
0xb4a363 execute_function_todo
../../gcc/passes.c:1964
0xb4ac95 execute_todo
../../gcc/passes.c:2014
>From gcc-bugs-return-535924-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:39:55 2016
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/77382] ICE: verify_gimple failed -- expand_expr_real_1, at expr.c:9651
Date: Thu, 25 Aug 2016 18:39:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77382
--- Comment #1 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
With official releases (configured with --enable-checking=release),
down to at least 4.8 :
$ gfortran-6 z1.f90
z1.f90:4:0:
call s
internal compiler error: in expand_expr_real_1, at expr.c:9651
>From gcc-bugs-return-535925-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:49:55 2016
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From: "zeccav at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/77383] New: -fcheck-pointer-bounds -mmpx ICE in make_decl_rtl at varasm.c
Date: Thu, 25 Aug 2016 18:49:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77383
Bug ID: 77383
Summary: -fcheck-pointer-bounds -mmpx ICE in make_decl_rtl at
varasm.c
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
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/* gcc -fcheck-pointer-bounds -mmpx */
int main ()
{
int size = 10;
typedef struct
{
char val[size];
} block;
block b;
block retframe_block () {}
retframe_block ();
}
/* gccerr37.c: In function ‘main.chkp’:
* gccerr37.c:12:3: internal compiler error: in make_decl_rtl, at varasm.c:1310
* retframe_block ();
* ^~~~~~~~~~~~~~
* 0xe3219d make_decl_rtl(tree_node*)
* /home/vitti/1tb/vitti/gcc-7/gcc/varasm.c:1306
* 0x82cf32 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
* /home/vitti/1tb/vitti/gcc-7/gcc/expr.c:9755
*0xe9d807 expand_normal
* /home/vitti/1tb/vitti/gcc-7/gcc/expr.h:285
* 0xe9d807 ix86_expand_builtin
* /home/vitti/1tb/vitti/gcc-7/gcc/config/i386/i386.c:41212
* 0x707354 expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
* /home/vitti/1tb/vitti/gcc-7/gcc/builtins.c:5801
* 0x82cf69 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
* /home/vitti/1tb/vitti/gcc-7/gcc/expr.c:10733
* 0x71272c initialize_argument_information
* /home/vitti/1tb/vitti/gcc-7/gcc/calls.c:1204
* 0x714f01 expand_call(tree_node*, rtx_def*, int)
* /home/vitti/1tb/vitti/gcc-7/gcc/calls.c:2857
* 0x82cb4d expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
* /home/vitti/1tb/vitti/gcc-7/gcc/expr.c:10736
* 0x83838b store_expr_with_bounds(tree_node*, rtx_def*, int, bool, bool,
tree_node*)
* /home/vitti/1tb/vitti/gcc-7/gcc/expr.c:5547
* 0x839e13 expand_assignment(tree_node*, tree_node*, bool)
* /home/vitti/1tb/vitti/gcc-7/gcc/expr.c:5316
* 0x729b45 expand_call_stmt
* /home/vitti/1tb/vitti/gcc-7/gcc/cfgexpand.c:2665
* 0x729b45 expand_gimple_stmt_1
* /home/vitti/1tb/vitti/gcc-7/gcc/cfgexpand.c:3580
* 0x729b45 expand_gimple_stmt
* /home/vitti/1tb/vitti/gcc-7/gcc/cfgexpand.c:3746
* 0x72c740 expand_gimple_basic_block
* /home/vitti/1tb/vitti/gcc-7/gcc/cfgexpand.c:5753
* 0x7314ee execute
* /home/vitti/1tb/vitti/gcc-7/gcc/cfgexpand.c:6367
* Please submit a full bug report,
* with preprocessed source if appropriate.
* Please include the complete backtrace with any bug report.
* See <http://gcc.gnu.org/bugs.html> for instructions.
*/
>From gcc-bugs-return-535926-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 18:50:46 2016
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From: "zeccav at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/67737] [C++1z] ICE in make_decl_rtl, at varasm.c:1299
Date: Thu, 25 Aug 2016 18:50:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67737
--- Comment #9 from Vittorio Zecca <zeccav at gmail dot com> ---
(In reply to Andrew Pinski from comment #8)
> (In reply to Vittorio Zecca from comment #7)
> > With gcc 6.1.0, maybe a shorter reproducer
> > /* gcc -fcheck-pointer-bounds -mmpx p.c */
>
> That is a different issue and should be filed separately if not already.
Bug 77383 submitted.
Thank you for the suggestion.
>From gcc-bugs-return-535927-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 19:19:50 2016
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From: "danielberger at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/77384] New: Assembler error - std::forward(decimal64) already declared
Date: Thu, 25 Aug 2016 19:19:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77384
Bug ID: 77384
Summary: Assembler error - std::forward(decimal64) already
declared
Product: gcc
Version: 6.2.0
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while compiling with no extra flags i get:
/tmp/cceuJGN0.s: Assembler messages:
1543 : Error: symbol `_ZSt7forwardIDdEOT_RNSt16remove_referenceIS0_E4typeE' is
already defined
1565 : Error: symbol `_ZNSt4pairIiDdEC1IiDdLb1EEEOT_OT0_' is already defined
Compilation failed
after some investigation it looks like the codegen is emitting this function
twice:
decimal64&& std::forward<decimal64>(std::remove_reference<decimal64>::type&)
perhaps it's the mix of explicit and implicit constructor or something.
minimal code - problem.cpp:
------------------------------
#include <decimal/decimal>
#include <utility>
using std::decimal::decimal64;
std::pair<int, decimal64> x = { 1, 1.5dd };
std::pair<int, decimal64> u = { 1, decimal64(1.5dd) };
------------------------------
live demonstration: https://godbolt.org/g/xgCliN
if needed i'm happy to upload more intermediate files
>From gcc-bugs-return-535928-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 19:36:32 2016
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Subject: [Bug fortran/77351] ICE in remove_trim, at frontend-passes.c:1145
Date: Thu, 25 Aug 2016 19:36:00 -0000
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--- Comment #4 from kargl at gcc dot gnu.org ---
Author: kargl
Date: Thu Aug 25 19:35:46 2016
New Revision: 239763
URL: https://gcc.gnu.org/viewcvs?rev=239763&root=gcc&view=rev
Log:
2016-08-25 Steven g. Kargl <kargl@gcc.gnu.org>
PR fortran/77351
* frontend-passes.c (remove_trim,combine_array_constructor): Check for
NULL pointer.
2016-08-25 Steven g. Kargl <kargl@gcc.gnu.org>
PR fortran/77351
* gfortran.dg/pr77351.f90: New test.
Added:
trunk/gcc/testsuite/gfortran.dg/pr77351.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/frontend-passes.c
trunk/gcc/testsuite/ChangeLog
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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/77351] ICE in remove_trim, at frontend-passes.c:1145
Date: Thu, 25 Aug 2016 19:37:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77351
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |kargl at gcc dot gnu.org
Resolution|--- |FIXED
Target Milestone|--- |7.0
--- Comment #5 from kargl at gcc dot gnu.org ---
Fixed on trunk.
>From gcc-bugs-return-535930-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 20:32:12 2016
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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/77380] ICE in gfc_check_dependency, at fortran/dependency.c:1255
Date: Thu, 25 Aug 2016 20:32:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77380
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-08-25
Target Milestone|--- |7.0
Ever confirmed|0 |1
--- Comment #2 from kargl at gcc dot gnu.org ---
Index: gcc/fortran/dependency.c
===================================================================
--- gcc/fortran/dependency.c (revision 239762)
+++ gcc/fortran/dependency.c (working copy)
@@ -1252,6 +1252,12 @@ gfc_check_dependency (gfc_expr *expr1, g
gfc_constructor *c;
int n;
+ /* -fcoarray=lib can end up here with expr1->expr_type set to EXPR_FUNCTION
+ and a reference to _F.caf_get, so skip the assert. */
+ if (expr1->expr_type == EXPR_FUNCTION
+ && strcmp (expr1->value.function.name, "_F.caf_get") == 0)
+ return 0;
+
gcc_assert (expr1->expr_type == EXPR_VARIABLE);
switch (expr2->expr_type)
>From gcc-bugs-return-535931-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 21:53:18 2016
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From: "andrew at fluidgravity dot co.uk" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/77385] New: "Unclassifiable statement" from gfortran
Date: Thu, 25 Aug 2016 21:53:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77385
Bug ID: 77385
Summary: "Unclassifiable statement" from gfortran
Product: gcc
Version: 6.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: andrew at fluidgravity dot co.uk
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Created attachment 39500
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39500&action=edit
Fortran code that won't compile with gfortran
I get the above error when I attempt to compile the attached code. The Intel
and PGI Fortran compilers both compile the code without error.
> gfortran -c code.f90
code.f90:31:15:
l(1) = k(1)%e()
1
Error: Unclassifiable statement at (1)
>From gcc-bugs-return-535932-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 21:59:50 2016
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Subject: [Bug fortran/77381] ICE in resolve_equivalence, at fortran/resolve.c:15149
Date: Thu, 25 Aug 2016 21:59:00 -0000
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-08-25
Ever confirmed|0 |1
--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed.
>From gcc-bugs-return-535933-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 22:02:57 2016
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Subject: [Bug fortran/77382] ICE: verify_gimple failed -- expand_expr_real_1, at expr.c:9651
Date: Thu, 25 Aug 2016 22:02:00 -0000
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Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-08-25
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--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed.
>From gcc-bugs-return-535934-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Aug 25 22:46:12 2016
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From: "hpmv at google dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/77386] New: Explicit constructor is allowed causing ambiguous initialization call when it shouldn't be allowed
Date: Thu, 25 Aug 2016 22:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77386
Bug ID: 77386
Summary: Explicit constructor is allowed causing ambiguous
initialization call when it shouldn't be allowed
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: hpmv at google dot com
Target Milestone: ---
Using g++ 4.8.4, compiling the following code
struct X{
X(int, int) {}
};
struct Y {
explicit Y(X) {}
explicit Y(int, int) {}
};
int main() {
Y({1, 2});
}
with the command line
g++ -Wall -Wextra --std=c++11 main.cpp
fails with the errors
main.cpp: In function ‘int main()’:
main.cpp:11:11: error: call of overloaded ‘Y(<brace-enclosed initializer
list>)’ is ambiguous
Y({1, 2});
^
main.cpp:11:11: note: candidates are:
main.cpp:6:11: note: Y::Y(X)
explicit Y(X) {}
^
main.cpp:5:8: note: constexpr Y::Y(const Y&)
struct Y {
^
main.cpp:5:8: note: constexpr Y::Y(Y&&)
This doesn't make sense because the overload Y::Y(const Y&) and Y::Y(Y&&)
should not be considered since it's not possible to interpret {1, 2} as Y(1, 2)
due to that constructor being marked explicit.
The code compiles in clang 3.4.
>From gcc-bugs-return-535935-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 01:25:47 2016
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From: "kugan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/77387] New: Value range not computed in some cases for ABS_EXPR
Date: Fri, 26 Aug 2016 01:25:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77387
Bug ID: 77387
Summary: Value range not computed in some cases for ABS_EXPR
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: kugan at gcc dot gnu.org
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For testcase:
int foo (int i)
{
int x = i;
x = __builtin_abs (i);
x >>= 24;
if (x > 256)
return 0;
return x;
}
vrp1 dump is:
Value ranges after VRP:
_1: [-INF, 256]
i_2(D): VARYING
x_3: [0, +INF(OVF)]
x_4: VARYING
x_6: [257, +INF] EQUIVALENCES: { x_4 } (1 elements)
x_7: [-INF, 256] EQUIVALENCES: { x_4 } (1 elements)
Removing basic block 3
foo (int i)
{
int x;
int _1;
<bb 2>:
x_3 = ABS_EXPR <i_2(D)>;
x_4 = x_3 >> 24;
if (x_4 > 256)
goto <bb 3>;
else
goto <bb 4>;
<bb 3>:
<bb 4>:
# _1 = PHI <0(3), x_4(2)>
return _1;
}
Note:
x_3: [0, +INF(OVF)]
x_4: VARYING
>From gcc-bugs-return-535936-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 01:27:37 2016
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From: "kugan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/77387] Value range not computed in some cases for ABS_EXPR
Date: Fri, 26 Aug 2016 01:27:00 -0000
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--- Comment #1 from kugan at gcc dot gnu.org ---
With :
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c
index e4d789b..2d1f4c8 100644
--- a/gcc/tree-vrp.c
+++ b/gcc/tree-vrp.c
@@ -3416,6 +3416,17 @@ extract_range_from_unary_expr_1 (value_range *vr,
return;
}
+ /* If SIGNED and VARYING set [0, TYPE_MAX]. */
+ if (!TYPE_UNSIGNED (type)
+ && vr0.type == VR_VARYING)
+ {
+ set_value_range (vr, VR_RANGE,
+ build_int_cst (type, 0),
+ vrp_val_max (type),
+ NULL);
+ return;
+ }
+
/* For the remaining varying or symbolic ranges we can't do anything
useful. */
if (vr0.type == VR_VARYING
vrp1 dump becomes:
Value ranges after VRP:
_1: [0, 127] EQUIVALENCES: { x_4 } (1 elements)
i_2(D): VARYING
x_3: [0, +INF]
x_4: [0, 127]
x_7: [0, 127] EQUIVALENCES: { x_4 } (1 elements)
Folding predicate x_4 > 256 to 0
Removing basic block 5
Merging blocks 2 and 3
Merging blocks 2 and 4
foo (int i)
{
int x;
<bb 2>:
x_3 = ABS_EXPR <i_2(D)>;
x_4 = x_3 >> 24;
return x_4;
}
>From gcc-bugs-return-535937-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 02:23:54 2016
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Subject: [Bug tree-optimization/77387] Value range not computed in some cases for ABS_EXPR
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
TYPE_UNSIGNED here is most likely not the correct check. TYPE_OVERFLOW_WRAPS
is the more correct one so for -fwrapv, you get the check still.
>From gcc-bugs-return-535938-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 07:58:14 2016
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Subject: [Bug target/77361] sparc - unrecognizable insn in __fixsfdi
Date: Fri, 26 Aug 2016 07:58:00 -0000
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Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2016-08-26
CC| |ebotcazou at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
You're using non-standard build options so you're essentially on your own here.
Please try removing them one by one and finding out which one is the culprit.
>From gcc-bugs-return-535939-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 08:18:21 2016
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Subject: [Bug tree-optimization/77387] -Wstrict-overflow pessimizes VRP in some cases for ABS_EXPR
Date: Fri, 26 Aug 2016 08:18:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-08-26
Version|unknown |6.1.0
Summary|Value range not computed in |-Wstrict-overflow
|some cases for ABS_EXPR |pessimizes VRP in some
| |cases for ABS_EXPR
Ever confirmed|0 |1
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Well, it arrives at
x_3: [0, +INF(OVF)]
to be able to diagnose -Wstrict-overflow. This means that further ops on
such range are "restricted" (that +INF(OVF) maximum is "sticky"). Not my
favorite way of things but this is how it is designed. Your patch breaks
that.
We're getting the above range from extract_range_basic - arguably ABS
handling could be improved directly here, most simply by instead of
feeding VARYING to the workers, feed [-MIN, +MAX] to them. Though then
we need to be careful to never canonicalize [-MIN, +MAX] to VARYING,
otherwise we'll eventually iterate between the (OVF) and non-(OVF) variants,
another possibility would be to feed [-MIN(OVF), +MAX(OVF)] for VARYING
and !TYPE_OVERFLOW_WRAPS.
That said, finally getting rid of that (OVF) stuff entirely from VRP would
be very very very welcome ;) For -Wstrict-overflow simply do ssa_propagate
twice, once with -fwrapv and once with -fno-wrapv, then for all substitutions
and simplifications see if the outcome is different and _then_ warn (ok,
that "see if the outcome is different" might be quite interesting to
implement).
So - the result of the testcase is as designed. We can improve x_4 to [0,
+INF(OVF)] at most, we fail to do this because +INF(OVF) >> 24 "overflows"
in extract_range_from_multiplicative_op_1. The fallback is to drop to VARYING
but dependent on 'code' we could drop to VR0 here. Not that this helps the
testcase.
Note the inability to simplify is just so we can get -Wstrict-overflow
warnings (there are a few other missed-optimization PRs because of the same
reason).
>From gcc-bugs-return-535940-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 08:23:13 2016
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Subject: [Bug gcov-profile/77378] [7 Regression] tree-profile and libgcov assume long long atomic operations are supported
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |7.0
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
I suppose we need a configure check or target hook/macro for the native atomics
support presence. I'm sure such already exists and we do not want to get
libatomic calls for the instrumentation.
>From gcc-bugs-return-535941-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 09:01:32 2016
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From: "andre.simoesdiasvieira at arm dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/77388] New: Reference to a packed structure member
Date: Fri, 26 Aug 2016 09:01:00 -0000
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Bug ID: 77388
Summary: Reference to a packed structure member
Product: gcc
Version: 7.0
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Target Milestone: ---
As initially reported by Michal on
https://answers.launchpad.net/gcc-arm-embedded/+question/345145 gcc seems to be
showing some weird behavior when it comes to passing a reference to a member in
a packed structure.
I was able to reduce the testcase presented in that launchpad ticket to the
following program:
$cat t.cpp:
#define PACKED __attribute__ ((packed))
#define TYPE_C short
typedef struct {
TYPE_C c;
} PACKED test_struct;
class A
{
const TYPE_C &c;
public:
A (const TYPE_C & _c) :
c(_c) {};
};
class B
{
public:
B();
A foo ();
private:
test_struct * s;
};
A B::foo ()
{
return A (s->c);
}
Compiling this with
$arm-none-eabi-g++ -mcpu=cortex-m7 -mthumb -S -O1 t.cpp -fdump-tree-optimized
Will yield the following dump:
;; Function A B::foo() (_ZN1B3fooEv, funcdef_no=3, decl_uid=4607, cgraph_uid=3,
symbol_order=3)
A B::foo() (struct B * const this)
{
const short int D.4636;
struct A D.4650;
<bb 2>:
MEM[(struct A *)&D.4650] = &D.4636;
D.4636 ={v} {CLOBBER};
return D.4650;
}
As you can see, it will not load the struct's field.
Changing the 'TYPE_C' define to 'char' will yield the following dump:
;; Function A B::foo() (_ZN1B3fooEv, funcdef_no=3, decl_uid=4607, cgraph_uid=3,
symbol_order=3)
A B::foo() (struct B * const this)
{
struct A D.4649;
struct test_struct * _1;
char * _2;
<bb 2>:
_1 = this_4(D)->s;
_2 = &_1->c;
MEM[(struct A *)&D.4649] = _2;
return D.4649;
}
Now when the type is 'char' it seems to be able to get the fields address.
Can anyone shine some light on this for me? Is referencing a packed structure's
member that is not guaranteed to be aligned (so not char) undefined behavior?
>From gcc-bugs-return-535942-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 09:04:19 2016
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Subject: [Bug target/77324] [7 regression] ICE in push_reload, at reload.c:1350
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--- Comment #4 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
I can reproduce the Ada build failure for ada/exp_atag.o
>From gcc-bugs-return-535943-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 09:04:39 2016
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Subject: [Bug target/77324] [7 regression] ICE in push_reload, at reload.c:1350
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Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-08-26
Ever confirmed|0 |1
>From gcc-bugs-return-535944-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 09:05:09 2016
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Subject: [Bug target/77324] [7 regression] ICE in push_reload, at reload.c:1350
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77324
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |ebotcazou at gcc dot gnu.org
--- Comment #5 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Investigating.
>From gcc-bugs-return-535945-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 09:14:14 2016
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From: "michal.fita at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/77388] Reference to a packed structure member
Date: Fri, 26 Aug 2016 09:14:00 -0000
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Michał Fita <michal.fita at gmail dot com> changed:
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CC| |michal.fita at gmail dot com
--- Comment #1 from Michał Fita <michal.fita at gmail dot com> ---
Nicely narrows Andre, Thanks. Added myself to CC to track progress.
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Subject: [Bug c++/64395] void_t doesn't work as expected
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Target Milestone|--- |5.0
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Subject: [Bug middle-end/64971] [5 Regression] gcc.c-torture/compile/pr37433.c ICEs with -mabi=ilp32
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64971
--- Comment #19 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Fri Aug 26 09:37:20 2016
New Revision: 239770
URL: https://gcc.gnu.org/viewcvs?rev=239770&root=gcc&view=rev
Log:
[AArch64][GCC 5] Backport Work around for PR target/64971
Backport from mainline
2016-04-20 Andrew Pinski <apinski@cavium.com>
Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR target/64971
* config/aarch64/aarch64.md (sibcall): Force call
address to be DImode for ILP32.
(sibcall_value): Likewise.
* gcc.c-torture/compile/pr37433-1.c: New testcase.
Added:
branches/gcc-5-branch/gcc/testsuite/gcc.c-torture/compile/pr37433-1.c
Modified:
branches/gcc-5-branch/gcc/ChangeLog
branches/gcc-5-branch/gcc/config/aarch64/aarch64.md
branches/gcc-5-branch/gcc/testsuite/ChangeLog
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Subject: [Bug middle-end/64971] [5 Regression] gcc.c-torture/compile/pr37433.c ICEs with -mabi=ilp32
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ktkachov at gcc dot gnu.org changed:
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--- Comment #20 from ktkachov at gcc dot gnu.org ---
ICE fixed on all active branches.
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Subject: [Bug c++/77386] Explicit constructor is allowed causing ambiguous initialization call when it shouldn't be allowed
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |rejects-valid
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-08-26
Version|4.8.4 |5.4.1
Ever confirmed|0 |1
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Confirmed. Changing version to the oldest maintained release.
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Subject: [Bug debug/77389] New: FAIL: g++.dg/debug/dwarf2/template-params-12f.C -std=gnu++11 scan-assembler-times DIE \\\\([^\\n]*\\\\) DW_TAG_template_value_param ...
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77389
Bug ID: 77389
Summary: FAIL: g++.dg/debug/dwarf2/template-params-12f.C
-std=gnu++11 scan-assembler-times DIE
\\\\([^\\n]*\\\\) DW_TAG_template_value_param ...
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: dominiq at lps dot ens.fr
CC: aoliva at gcc dot gnu.org, iains at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-apple-darwin15
Target: x86_64-apple-darwin15
Build: x86_64-apple-darwin15
On x86_64-apple-darwin15 I see the following failures
FAIL: g++.dg/debug/dwarf2/template-params-12f.C -std=gnu++11
scan-assembler-times DIE \\\\([^\\n]*\\\\)
DW_TAG_template_value_param[^\\n]*\\n[^\\n]* DW_AT_name\\n[^\\n]*
DW_AT_type\\n[^\\n]*[^\\n]* DW_AT_location\\n[^\\n]*
DW_OP_addr\\n[^\\n]*_ZN1S1fEv[^\\n]*\\n[^\\n]* DW_OP_stack_value\\n[^\\n]*
DW_OP_piece\\n[^\\n]*\\n[^\\n]* DW_OP_lit0\\n[^\\n]*
DW_OP_stack_value\\n[^\\n]* DW_OP_piece 1
FAIL: g++.dg/debug/dwarf2/template-params-12f.C -std=gnu++14
scan-assembler-times DIE \\\\([^\\n]*\\\\)
DW_TAG_template_value_param[^\\n]*\\n[^\\n]* DW_AT_name\\n[^\\n]*
DW_AT_type\\n[^\\n]*[^\\n]* DW_AT_location\\n[^\\n]*
DW_OP_addr\\n[^\\n]*_ZN1S1fEv[^\\n]*\\n[^\\n]* DW_OP_stack_value\\n[^\\n]*
DW_OP_piece\\n[^\\n]*\\n[^\\n]* DW_OP_lit0\\n[^\\n]*
DW_OP_stack_value\\n[^\\n]* DW_OP_piece 1
FAIL: g++.dg/debug/dwarf2/template-params-12f.C -std=gnu++98
scan-assembler-times DIE \\\\([^\\n]*\\\\)
DW_TAG_template_value_param[^\\n]*\\n[^\\n]* DW_AT_name\\n[^\\n]*
DW_AT_type\\n[^\\n]*[^\\n]* DW_AT_location\\n[^\\n]*
DW_OP_addr\\n[^\\n]*_ZN1S1fEv[^\\n]*\\n[^\\n]* DW_OP_stack_value\\n[^\\n]*
DW_OP_piece\\n[^\\n]*\\n[^\\n]* DW_OP_lit0\\n[^\\n]*
DW_OP_stack_value\\n[^\\n]* DW_OP_piece 1
FAIL: g++.dg/debug/dwarf2/template-params-12g.C -std=gnu++11
scan-assembler-times DIE \\\\([^\\n]*\\\\)
DW_TAG_template_value_param[^\\n]*\\n[^\\n]* DW_AT_name\\n[^\\n]*
DW_AT_type\\n[^\\n]*[^\\n]* DW_AT_location\\n[^\\n]*
DW_OP_addr\\n[^\\n]*_ZN1B1gEv[^\\n]*\\n[^\\n]* DW_OP_stack_value\\n[^\\n]*
DW_OP_piece\\n[^\\n]*\\n[^\\n]* DW_OP_lit0\\n[^\\n]*
DW_OP_stack_value\\n[^\\n]* DW_OP_piece 1
FAIL: g++.dg/debug/dwarf2/template-params-12g.C -std=gnu++14
scan-assembler-times DIE \\\\([^\\n]*\\\\)
DW_TAG_template_value_param[^\\n]*\\n[^\\n]* DW_AT_name\\n[^\\n]*
DW_AT_type\\n[^\\n]*[^\\n]* DW_AT_location\\n[^\\n]*
DW_OP_addr\\n[^\\n]*_ZN1B1gEv[^\\n]*\\n[^\\n]* DW_OP_stack_value\\n[^\\n]*
DW_OP_piece\\n[^\\n]*\\n[^\\n]* DW_OP_lit0\\n[^\\n]*
DW_OP_stack_value\\n[^\\n]* DW_OP_piece 1
FAIL: g++.dg/debug/dwarf2/template-params-12g.C -std=gnu++98
scan-assembler-times DIE \\\\([^\\n]*\\\\)
DW_TAG_template_value_param[^\\n]*\\n[^\\n]* DW_AT_name\\n[^\\n]*
DW_AT_type\\n[^\\n]*[^\\n]* DW_AT_location\\n[^\\n]*
DW_OP_addr\\n[^\\n]*_ZN1B1gEv[^\\n]*\\n[^\\n]* DW_OP_stack_value\\n[^\\n]*
DW_OP_piece\\n[^\\n]*\\n[^\\n]* DW_OP_lit0\\n[^\\n]*
DW_OP_stack_value\\n[^\\n]* DW_OP_piece 1
The test has been introduced at revision r239401 and has never succeeded.
grep DW_TAG_template_value_param template-params-12f.s
returns
.byte 0x11 # uleb128 0x11; (DIE (0x2ac)
DW_TAG_template_value_param)
.byte 0x30 # uleb128 0x30; (TAG: DW_TAG_template_value_param)
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/77388] Reference to a packed structure member
Date: Fri, 26 Aug 2016 10:21:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
This happens on x86_64 as well and is because you invoke undefined behavior
when extending the lifetime of A::c across the lifetime of the object
it refers to. s->c is an rvalue here because it's type isn't compatible
due to the mismatched alignment and thus a temporary of correct alignment
is build and the address of that is passed to A::A.
I suppose the FE could emit a warning here.
Oh, and the .optimized you see is because the FE emits a CLOBBER to explicitely
end the lifetime of said temporary:
A B::foo() (struct B * const this)
{
const short int & SR.1;
const short int D.2330;
struct A D.2331;
struct A D.2342;
struct test_struct * _1;
short int _2;
<bb 2>:
_1 = this_4(D)->s;
_2 = _1->c;
D.2330 = _2;
MEM[(struct A *)&D.2342] = &D.2330;
D.2330 ={v} {CLOBBER};
return D.2342;
thus we can DSE the store to D.2330.
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Subject: [Bug bootstrap/70473] genautomata memory footprint for arm
Date: Fri, 26 Aug 2016 10:24:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70473
--- Comment #10 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Fri Aug 26 10:23:20 2016
New Revision: 239772
URL: https://gcc.gnu.org/viewcvs?rev=239772&root=gcc&view=rev
Log:
[ARM] PR target/70473: Reduce size of Cortex-A8 automaton
PR target/70473
* config/arm/cortex-a8-neon.md (cortex_a8_vfp_muld): Reduce
reservation duration to 15 cycles.
(cortex_a8_vfp_macs): Likewise.
(cortex_a8_vfp_macd): Likewise.
(cortex_a8_vfp_divs): Likewise.
(cortex_a8_vfp_divd): Likewise.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/arm/cortex-a8-neon.md
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/70473] genautomata memory footprint for arm
Date: Fri, 26 Aug 2016 10:33:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70473
--- Comment #11 from ktkachov at gcc dot gnu.org ---
Can you please try the latest GCC trunk revision r239772 or later?
The genautomata memory usage should have decreased somewhat
>From gcc-bugs-return-535954-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 10:56:35 2016
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From: "andre.simoesdiasvieira at arm dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/77388] Reference to a packed structure member
Date: Fri, 26 Aug 2016 10:56:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77388
--- Comment #3 from Andre Vieira <andre.simoesdiasvieira at arm dot com> ---
Thank you Richard!
I have a follow up question. Why is this only a problem when passing by
reference and not when passing a pointer?
So say:
#define PACKED __attribute__ ((packed))
#define TYPE_C short
typedef struct {
TYPE_C c;
} PACKED test_struct;
class A
{
const TYPE_C * c;
public:
A (const TYPE_C * _c) :
c(_c) {};
};
class B
{
public:
B();
A foo ();
private:
test_struct * s;
};
A B::foo ()
{
return A (&(s->c));
}
Wouldn't there still be an alignment mismatch between A::c and s->c?
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Subject: [Bug c++/77388] Reference to a packed structure member
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77388
--- Comment #4 from rguenther at suse dot de <rguenther at suse dot de> ---
On Fri, 26 Aug 2016, andre.simoesdiasvieira at arm dot com wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77388
>
> --- Comment #3 from Andre Vieira <andre.simoesdiasvieira at arm dot com> ---
> Thank you Richard!
>
> I have a follow up question. Why is this only a problem when passing by
> reference and not when passing a pointer?
>
> So say:
> #define PACKED __attribute__ ((packed))
>
> #define TYPE_C short
>
> typedef struct {
> TYPE_C c;
> } PACKED test_struct;
>
> class A
> {
> const TYPE_C * c;
> public:
> A (const TYPE_C * _c) :
> c(_c) {};
> };
>
> class B
> {
> public:
> B();
> A foo ();
> private:
> test_struct * s;
> };
>
> A B::foo ()
> {
> return A (&(s->c));
> }
>
> Wouldn't there still be an alignment mismatch between A::c and s->c?
Yes, this still invokes undefined behavior. You just don't get bitten
by the C++ FE choosing to use a temporary for the const reference.
I suppose using a non-const reference would "work" as well.
Note the above is also not diagnosed.
>From gcc-bugs-return-535956-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 11:41:28 2016
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/77390] New: generates INDIRECT_REF of void type
Date: Fri, 26 Aug 2016 11:41:00 -0000
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Bug ID: 77390
Summary: generates INDIRECT_REF of void type
Product: gcc
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At trans-expr.c:5523 we have
if (e->ts.type == BT_DERIVED && fsym && fsym->ts.type == BT_CLASS)
{
/* The derived type is passed to gfc_deallocate_alloc_comp.
Therefore, class actuals can handled correctly but derived
types passed to class formals need the _data component. */
tmp = gfc_class_data_get (tmp);
if (!CLASS_DATA (fsym)->attr.dimension)
tmp = build_fold_indirect_ref_loc (input_location, tmp);
where the build_fold_indirect_ref_loc, for the testcase
gfortran.dg/submodule_6.f08 at least ends up building an INDIRECT_REF of
void type as tmp is a generic pointer (void *):
(gdb) p debug_tree (tmp)
<component_ref 0x7ffff669b360
type <pointer_type 0x7ffff68a02a0
type <void_type 0x7ffff68a0150 void VOID
align 8 symtab 0 alias set -1 canonical type 0x7ffff68a0150
pointer_to_this <pointer_type 0x7ffff68a02a0>>
public unsigned DI
size <integer_cst 0x7ffff6887bb8 constant 64>
unit size <integer_cst 0x7ffff6887bd0 constant 8>
align 64 symtab 0 alias set -1 canonical type 0x7ffff68a02a0
pointer_to_this <pointer_type 0x7ffff68a6a80>>
arg 0 <indirect_ref 0x7ffff6695c60
type <record_type 0x7ffff6696000 __class__STAR_t type_4 BLK
the resulting INDIRECT_REF:
<indirect_ref 0x7ffff6695c80
type <void_type 0x7ffff68a0150 void VOID
align 8 symtab 0 alias set -1 canonical type 0x7ffff68a0150
pointer_to_this <pointer_type 0x7ffff68a02a0>>
arg 0 <component_ref 0x7ffff669b360
type <pointer_type 0x7ffff68a02a0 type <void_type 0x7ffff68a0150 void>
public unsigned DI
this indirect ref is then further sub-setted by COMPONENT_REFs which means
the FE knows the record type it intends to use here.
This confuses the middle-end quite a bit and I intend to add checking that
this doesn't happen.
The following should catch this at the root (the ! type because I don't
know whether we're lazily setting type anywhere)
Index: gcc/tree.c
===================================================================
--- gcc/tree.c (revision 239773)
+++ gcc/tree.c (working copy)
@@ -4405,6 +4407,7 @@ build1_stat (enum tree_code code, tree t
/* Whether a dereference is readonly has nothing to do with whether
its operand is readonly. */
TREE_READONLY (t) = 0;
+ gcc_assert (! type || ! VOID_TYPE_P (type));
break;
case ADDR_EXPR:
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Subject: [Bug gcov-profile/77378] [7 Regression] tree-profile and libgcov assume long long atomic operations are supported
Date: Fri, 26 Aug 2016 12:02:00 -0000
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--- Comment #5 from David Edelsohn <dje at gcc dot gnu.org> ---
Configure might work for multilib libgcov. It's mode dependent (-m32/-m64) in
GCC, so a single configure check is not sufficient.
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Subject: [Bug libstdc++/51960] [DR 2127] Missing move-assignment operator in raw_storage_iterator
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
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----------------------------------------------------------------------------
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Severity|enhancement |normal
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Subject: [Bug c++/77388] Reference to a packed structure member
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--- Comment #5 from Andre Vieira <andre.simoesdiasvieira at arm dot com> ---
I see, thank you!
Oh and leaving out the const yields an error:
t.cpp:28:16: error: cannot bind packed field '((B*)this)->B::s->test_struct::c'
to 'short int&'
return A (s->c);
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Subject: [Bug c++/77388] Reference to a packed structure member
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--- Comment #6 from rguenther at suse dot de <rguenther at suse dot de> ---
On Fri, 26 Aug 2016, andre.simoesdiasvieira at arm dot com wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77388
>
> --- Comment #5 from Andre Vieira <andre.simoesdiasvieira at arm dot com> ---
> I see, thank you!
>
> Oh and leaving out the const yields an error:
> t.cpp:28:16: error: cannot bind packed field '((B*)this)->B::s->test_struct::c'
> to 'short int&'
> return A (s->c);
Ah, great!
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Subject: [Bug tree-optimization/69047] memcpy is not as optimized as union is
Date: Fri, 26 Aug 2016 12:34:00 -0000
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--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Aug 26 12:33:43 2016
New Revision: 239778
URL: https://gcc.gnu.org/viewcvs?rev=239778&root=gcc&view=rev
Log:
2016-08-26 Richard Biener <rguenther@suse.de>
PR tree-optimization/69047
* tree-ssa.c (maybe_rewrite_mem_ref_base): Handle general bitfield
extracts similar to what FRE does.
(non_rewritable_mem_ref_base): Likewise.
* gcc.dg/pr69047.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/pr69047.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa.c
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Subject: [Bug tree-optimization/69047] memcpy is not as optimized as union is
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
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Subject: [Bug middle-end/77357] strlen of constant strings not folded
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--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ok, I'm less interested in -O0 but even with -O1 we fail for global_struct
and local_struct. We can improve things by doing
Index: gcc/expr.c
===================================================================
--- gcc/expr.c (revision 239778)
+++ gcc/expr.c (working copy)
@@ -60,6 +60,7 @@ along with GCC; see the file COPYING3.
#include "tree-chkp.h"
#include "rtl-chkp.h"
#include "ccmp.h"
+#include "tree-dfa.h"
/* If this is nonzero, we do not bother generating VOLATILE
@@ -11098,51 +11081,14 @@ string_constant (tree arg, tree *ptr_off
if (TREE_CODE (arg) == ADDR_EXPR)
{
- if (TREE_CODE (TREE_OPERAND (arg, 0)) == STRING_CST)
- {
- *ptr_offset = size_zero_node;
- return TREE_OPERAND (arg, 0);
- }
- else if (TREE_CODE (TREE_OPERAND (arg, 0)) == VAR_DECL)
- {
- array = TREE_OPERAND (arg, 0);
- offset = size_zero_node;
- }
- else if (TREE_CODE (TREE_OPERAND (arg, 0)) == ARRAY_REF)
- {
- array = TREE_OPERAND (TREE_OPERAND (arg, 0), 0);
- offset = TREE_OPERAND (TREE_OPERAND (arg, 0), 1);
- if (TREE_CODE (array) != STRING_CST
- && TREE_CODE (array) != VAR_DECL)
- return 0;
-
- /* Check if the array has a nonzero lower bound. */
- lower_bound = array_ref_low_bound (TREE_OPERAND (arg, 0));
- if (!integer_zerop (lower_bound))
- {
- /* If the offset and base aren't both constants, return 0. */
- if (TREE_CODE (lower_bound) != INTEGER_CST)
- return 0;
- if (TREE_CODE (offset) != INTEGER_CST)
- return 0;
- /* Adjust offset by the lower bound. */
- offset = size_diffop (fold_convert (sizetype, offset),
- fold_convert (sizetype, lower_bound));
- }
- }
- else if (TREE_CODE (TREE_OPERAND (arg, 0)) == MEM_REF)
- {
- array = TREE_OPERAND (TREE_OPERAND (arg, 0), 0);
- offset = TREE_OPERAND (TREE_OPERAND (arg, 0), 1);
- if (TREE_CODE (array) != ADDR_EXPR)
- return 0;
- array = TREE_OPERAND (array, 0);
- if (TREE_CODE (array) != STRING_CST
- && TREE_CODE (array) != VAR_DECL)
- return 0;
- }
- else
+ HOST_WIDE_INT off;
+ array = get_addr_base_and_unit_offset (TREE_OPERAND (arg, 0), &off);
+ if (! array
+ || (TREE_CODE (array) != VAR_DECL
+ && TREE_CODE (array) != CONST_DECL
+ && TREE_CODE (array) != STRING_CST))
return 0;
+ *ptr_offset = size_int (off);
}
else if (TREE_CODE (arg) == PLUS_EXPR || TREE_CODE (arg) ==
POINTER_PLUS_EXPR)
{
but then we only handle STRING_CST ctors and not {.a="abc"} we do have
some generic fold-a-ctor-reference-at-offset thing
(gimple-fold.c:fold_*ctor_reference) but that hasn't the
get-me-the-ctor-element-at-offset part factored out. Or finding the ctor
element that the offset
is within (we can then adjust offset).
So a bit of refactoring is missing here.
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Subject: [Bug libstdc++/51960] [DR 2127] Missing move-assignment operator in raw_storage_iterator
Date: Fri, 26 Aug 2016 13:12:00 -0000
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--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Fri Aug 26 13:11:29 2016
New Revision: 239781
URL: https://gcc.gnu.org/viewcvs?rev=239781&root=gcc&view=rev
Log:
libstdc++/51960 move-construction for raw_storage_iterator
PR libstdc++/51960
* doc/xml/manual/intro.xml: Document DR 2127 change.
* doc/html/*: Regenerate.
* include/bits/stl_raw_storage_iter.h (operator=(_Tp&&)): Add.
(operator++(), operator++(int)): Use injected class name.
* testsuite/20_util/raw_storage_iterator/dr2127.cc: New test.
Added:
trunk/libstdc++-v3/testsuite/20_util/raw_storage_iterator/dr2127.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/doc/html/manual/bugs.html
trunk/libstdc++-v3/doc/xml/manual/intro.xml
trunk/libstdc++-v3/include/bits/stl_raw_storage_iter.h
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Subject: [Bug libstdc++/51960] [DR 2127] Missing move-assignment operator in raw_storage_iterator
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Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |7.0
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Implemented for GCC 7.
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Subject: [Bug c++/60796] Default move constructor not generated by explicit template instantiation
Date: Fri, 26 Aug 2016 13:37:00 -0000
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Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
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CC| |jason at gcc dot gnu.org
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--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> ---
Yes, duplicate.
*** This bug has been marked as a duplicate of bug 57728 ***
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Subject: [Bug c++/57728] Explicit template instantiation with defaulted method causes missing symbol
Date: Fri, 26 Aug 2016 13:37:00 -0000
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Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |brian.freyburger@blandertec
| |hnologies.com
--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> ---
*** Bug 60796 has been marked as a duplicate of this bug. ***
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Subject: [Bug target/77353] [AVR] uint16_t instead uint8_t comparison
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--- Comment #9 from Berni <bseifert at gmx dot at> ---
GCC 7-20160821 works as expected!
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From: "jason at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/57728] Explicit template instantiation with defaulted method causes missing symbol
Date: Fri, 26 Aug 2016 15:11:00 -0000
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--- Comment #9 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Fri Aug 26 15:10:51 2016
New Revision: 239782
URL: https://gcc.gnu.org/viewcvs?rev=239782&root=gcc&view=rev
Log:
PR c++/57728 - explicit instantiation and defaulted functions
* pt.c (do_type_instantiation): Don't mess with non-user-provided
member functions.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/explicit11.C
trunk/gcc/testsuite/g++.dg/cpp0x/explicit12.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/class.c
trunk/gcc/cp/pt.c
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Subject: [Bug target/77344] Internal Compiler Error with arch knl
Date: Fri, 26 Aug 2016 15:39:00 -0000
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Yuri Rumyantsev <ysrumyan at gmail dot com> changed:
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----------------------------------------------------------------------------
CC| |ysrumyan at gmail dot com
--- Comment #3 from Yuri Rumyantsev <ysrumyan at gmail dot com> ---
I checked that this bug has been fixed in GCC 6 branch some time ago and fresh
version of it compiles this file successfully:
GNU Fortran2008 (Revision=239431/svn-rev:239431/) version 6.1.1 20160812
(x86_64-pc-linux-gnu)
compiled by GNU C version 6.1.1 20160812
It looks like you need to get next release of GCC 6 branch compiler.
Note that I can reproduce ICE with the earlier GCC 6 branch compiler:
compiled by GNU C version 6.1.1 20160617.
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Subject: [Bug fortran/77391] New: gfortran allows CHARACTER(LEN=:),PARAMETER:: STRING='constant' buts does not report it as an extension
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Bug ID: 77391
Summary: gfortran allows CHARACTER(LEN=:),PARAMETER::
STRING='constant' buts does not report it as an
extension
Product: gcc
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Created attachment 39501
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39501&action=edit
test script with code and output
gfortran allows length of ":" on character parameter values; which appears to
be an extension of the standard. I would prefer that the extension either not
be allowed or be warned about to support code portability.
DETAILS:
It appears that gfortran has an extension that is not reported when
-std=2008 is used. Other compilers fail and complain when a colon
is used for the length when declaring a character variable with the
parameter attribute.
For instance, the Intel ifort compiler (version 16.1) complains:
error #8238: A colon may be used as a type parameter value only in the
declaration of an entity or component that has the POINTER or ALLOCATABLE
attribute.
Which appears to be a quote from the f2008 standard, 4.2.6.
6 A type parameter value may be specified by a type specification (4.4, 4.5.9).
R401 type-param-value is scalar-int-expr
or *
or :
C401 (R401) The type-param-value for a kind type parameter shall be an
initialization expression.
C402 (R401) A colon shall not be used as a type-param-value except in
the declaration of an entity or component
that has the POINTER or ALLOCATABLE attribute.
Example code:
program picky
character(len=*),parameter :: ident1="@(#)one(3f): with asterisk"
character(len=:),parameter :: ident2="@(#)two(3f): with colon, which appears to
be an extension?"
write(*,*)ident1
write(*,*)ident2
end program picky
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Subject: [Bug target/70713] msp430 interrupt attribute prevents overriding weak symbols
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--- Comment #2 from Joe Seymour <joe.s+bugzilla at somniumtech dot com> ---
Proposed patch: https://gcc.gnu.org/ml/gcc-patches/2016-08/msg01882.html
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Subject: [Bug c++/77379] incorrect mangling for non-virtual adjustor thunk (missing abi tag)
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Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2016-08-26
Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
Target Milestone|--- |7.0
Ever confirmed|0 |1
--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> ---
Bug, thanks.
>From gcc-bugs-return-535974-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 17:12:12 2016
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Subject: [Bug target/72807] [7 Regression] gnat bootstrap broken on armhf-linux-gnuabihf
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Matthias Klose <doko at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
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--- Comment #2 from Matthias Klose <doko at gcc dot gnu.org> ---
seems to work again with current trunk.
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Subject: [Bug c++/77375] [5/6/7 Regression] constant object with mutable subobject allocated in read-only memory
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Patrick Palka <ppalka at gcc dot gnu.org> changed:
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--- Comment #2 from Patrick Palka <ppalka at gcc dot gnu.org> ---
I have a patch.
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Subject: [Bug fortran/77391] gfortran allows CHARACTER(LEN=:),PARAMETER:: STRING='constant' buts does not report it as an extension
Date: Fri, 26 Aug 2016 18:29:00 -0000
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kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-08-26
Target Milestone|--- |7.0
Ever confirmed|0 |1
--- Comment #1 from kargl at gcc dot gnu.org ---
Patches submitted to fortran@gcc.gnu.org mailing list.
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug libfortran/77393] New: [7 Regression] Revision r237735 changed the behavior of F0.0
Date: Fri, 26 Aug 2016 19:17:00 -0000
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Bug ID: 77393
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of F0.0
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Version: 7.0
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This PR is motivated by the thread at
https://groups.google.com/forum/#!topic/comp.lang.fortran/lH-Pi0MbZZ4
Before revision r237735 the output of the following test
print "(f0.0)", huge(1.0)
print "(f0.0)", huge(1.0_8)
print "(f0.0)", huge(1.0_10)
print "(f0.0)", huge(1.0_16)
end
was
340282346638528859811704183484516925440.
179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.
1189731495357231765021263853030970205169063322294624200440323733891737005522970722616410290336528882853545697807495577314427443153670288434198125573853743678673593200706973263201915918282961524365529510646791086614311790632169778838896134786560600399148753433211454911160088679845154866512852340149773037600009125479393966223151383622417838542743917838138717805889487540575168226347659235576974805113725649020884855222494791399377585026011773549180099796226026859508558883608159846900235645132346594476384939859276456284579661772930407806609229102715046085388087959327781622986827547830768080040150694942303411728957777100335714010559775242124057347007386251660110828379119623008469277200965153500208474470792443848545912886723000619085126472111951361467527633519562927597957250278002980795904193139603021470997035276467445530922022679656280991498232083329641241038509239184734786121921697210543484287048353408113042573002216421348917347174234800714880751002064390517234247656004721768096486107994943415703476320643558624207443504424380566136017608837478165389027809576975977286860071487028287955567141404632615832623602762896316173978484254486860609948270867968048078702511858930838546584223040908805996294594586201903766048446790926002225410530775901065760671347200125846406957030257138960983757998926954553052368560758683179223113639519468850880771872104705203957587480013143131444254943919940175753169339392366881856189129931729104252921236835159922322050998001677102784035360140829296398115122877768135706045789343535451696539561254048846447169786893211671087229088082778350518228857646062218739702851655083720992349483334435228984751232753726636066213902281264706234075352071724058665079518217303463782631353393706774901950197841690441824738063162828586857741432581165364040218402724913393320949219498422442730427019873044536620350262386957804682003601447291997123095530057206141866974852846856186514832715974481203121946751686379343096189615107330065552421485195201762858595091051839472502863871632494167613804996319791441870254302706758495192008837915169401581740046711477877201459644461175204059453504764721807975761111720846273639279600339670470037613374509553184150073796412605047923251661354841291884211340823015473304754067072818763503617332908005951896325207071673904547777129682265206225651439919376804400292380903112437912614776255964694221981375146967079446870358004392507659451618379811859392049544036114915310782251072691486979809240946772142727012404377187409216756613634938900451232351668146089322400697993176017805338191849981933008410985993938760292601390911414526003720284872132411955424282101831204216104467404621635336900583664606591156298764745525068145003932941404131495400677602951005962253022823003631473824681059648442441324864573137437595096416168048024129351876204668135636877532814675538798871771836512893947195335061885003267607354388673368002074387849657014576090349857571243045102038730494854256702479339322809110526041538528994849203991091946129912491633289917998094380337879522093131466946149705939664152375949285890960489916121944989986384837022486672249148924678410206183364627416969576307632480235587975245253737035433882960862753427740016333434055083537048507374544819754722228975281083020898682633020285259923084168054539687911418297629988964576482765287504562854924265165217750799516259669229114977788962356670956627138482018191348321687995863652637620978285070099337294396784639879024914514222742527006363942327998483976739987154418554201562244154926653014515504685489258620276085761837129763358761215382565129633538141663949516556000264159186554850057052611431952919918807954522394649627635630178580896692226406235382898535867595990647008385687123810329591926494846250768992258419305480763620215089022149220528069842018350840586938493815498909445461977893029113576516775406232278298314033473276603952231603422824717528181818844304880921321933550869873395861276073670866652375555675803171490108477320096424318780070008797346032906278943553743564448851907191616455141155761939399690767415156402826543664026760095087523945507341556135867933066031744720924446513532366647649735400851967040771103640538150073486891798364049570606189535005089840913826869535090066783324472578712196604415284924840041850932811908963634175739897166596000759487800619164094854338758520657116541072260996288150123144377944008749301944744330784388995701842710004808305012177123560622895076269042856800047718893158089358515593863176652948089031267747029662545110861548958395087796755464137944895960527975209874813839762578592105756284401759349324162148339565350189196811389091843795734703269406342890087805846940352453479398080674273236297887100867175802531561302356064878709259865288416350972529537091114317204887747405539054009425375424119317944175137064689643861517718849867010341532542385911089624710885385808688837777258648564145934262121086647588489260031762345960769508849149662444156604419552086811989770240.
1189731495357231765085759326628007016196469052641694045529698884212163579755312392324974012848462073525902033564749126859755265433573804462672698751945261490853461958725021262845865799405404493574681566096686172574953791792292256220777095858112702436475442537092608935138247345677279593806773692330094615746119725784172889892521939920757654204864565673356452247278152288867700638935595456496699511441752909606878513250948311396886100526833092128683974752192266386791880873694343077348155564101669971138512786874753496996549221727686770196551512812712488289469952298031867469924683981576664562667786719061499639630341657098305425237220876664630087808767256182803220212219924852375903049520911395910918921205273496768588119030111593018789368039232011671404175845108854706965215605777113516257404818817695075025715299705916714352103671782759119316034498392169720631800164034124698918142227577300459309880454715179606299895507583075851195185857971173167676966057998899352631885417716295302014668802384075846036226606480142977595407135050379808649130157164024060311786908796372510335873512774795275748595417572920936651398752709055215663939505589207804914540432978557623565645991208599669097180808881920063722771431218489011922209679053545963628417326002439732802939524313786668514027381434321036636571171670423586472759561231970793967839279147282720195377060602122638457883204809341717526809639253539447730280863675704796054050525162959099932535265586464682793821550087166946662209865086040990507131145474267411042839542322762994938759613112743837192839682676257555388372814490845395747128162065871588219108887240116651361962050800029176299938826082417547516732269930473133261258921845516815235455354310458114528303607394526100730578774092094736822286015459361126642549541799645333882549670764145955017051330800061253865140180153211929361456500343514792890205532021760061882232615736553377294980974059590520187961459799386741513028505934410453603480192383349321115171811051004108592830991811382552909064873029533418691087118107895004426881765865961841419267486232005929789956207494587649901662172318722999484512325826087031561936383689740686505279775296789331613683822798597040651600524129025149894873153196942095056670847466927644812596506700129443579512479230621373978088731257089799622902183824105412930483065603459863120371744282301377070153823878609951218937542956964157950988060608985782910656238116142203574104757451828170804875257446204128348513829082731722364189380493588338947664370623279820755831646205417488393062838201789547219543194450902113699925965376908192792152122212824578879336506875288617303469517112245451315447164280392523574962804175375927948971096983905242318797695347043690474223813266505639761164438844266531364626851219633994434154098562127395936184421821444273431534507860161614287022720984061569660333372788241037131538077377480152670583257920535569973318188112685673318997967497786786001251403873023920127717626858627038170562807276699687356274072773403132694104831615879354395811585825112837841563222761623334459188131537882355732483030085976890382969734476214593428191212717141333047577867552218517431064848760373196290310124466145087078377140528533048684204278799596652514009368964527494988719996088230065668196236298805733689960371306226158464997243490564472254071897564144128539839986096045563264771285585066304177995720101744844387158329767375560416207800878830072072413908657855667239546369357775781344288195989176313356856417845434232814886744226746707066979755577121788798468777700116472954103621810567107869855646414713502627836321256957407217461738363552424248762436478085351810995749293238174081331905048144612700905541425702220302537611494824228765324577933778519818778697340282580912780674979058938062556856001076057705982166686824756037569615760497619819482052758118532729333127733603742149847001463931981340719681330844408263017545241644293372483217234561694263937855759294448662979095419227451801588425977869694026601427919655168415895923043115191751872713346095752634608254475988154162254952597853199039645883742199236387610395830948074365988397707849632252080920941206268114832425403540515474312327876180802357701527842702008781378306569508588571830140611098042683009530862797403015355464377406249853964481000402231771665700893607521804084523668568649103258862666293372472441435563520595461701042390500795615834505944837326652542467444364861499184275097485253621979537504128523848241127715641240965261646703516395599407360083455079665191393229410544185167999099787655424462558900874388405649169453726739312260234815543297842308646072190147948072928456725835039546121182133640777769925841807579051735838823112759622714067509669913645288281894558925612972425252452248453502562347348900936766966136332741088135837550717443838484760651019872222926016920811114616937143207743488504602012776364256746872315205952601072228970686460932435222754496341763535189105548847634608972381760403137363968.
Starting at that revision the output became
340282346638528859811704183484516925440.
a.out(42020,0x7fff78eb2000) malloc: *** error for object 0x7fff5f902ed0:
pointer being freed was not allocated
*** set a breakpoint in malloc_error_break to debug
Program received signal SIGABRT: Process abort signal.
The only relevant part of the standard I have found is
> 10.7.2.3.2 F editing
> 1 The Fw.d edit descriptor indicates that the field occupies w positions,
> except when w is zero in which case the processor selects the field width.
> The fractional part of the field consists of d digits.
> On input, w shall not be zero.
I am not 100% sure about the interpretation of "the processor selects the field
width", but I understand it as "the minimal width to output the number without
*". If I am correct, the expected behavior is the one before r237735.
Note that the following code
print "(f8.0)", huge(1.0)
print "(f18.0)", huge(1.0_8)
print "(f20.0)", huge(1.0_10)
print "(f40.0)", huge(1.0_16)
end
gives
********
******************
********************
****************************************
before r237735 and
********
******************
Program received signal SIGSEGV: Segmentation fault - invalid memory reference.
after it.
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Subject: [Bug target/77289] [7 Regression] ICE in extract_constrain_insn, at recog.c:2212 on powerpc64
Date: Fri, 26 Aug 2016 19:33:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77289
--- Comment #5 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
(In reply to Peter Bergner from comment #4)
Thank you for working on this PR.
> Adding Vlad since there are IRA and LRA questions.
>
>
>
> I'm not sure if IRA is supposed to always assign operand 1 the same register
> as operand 0 here, or whether that is reload/LRA's job. Vlad?
>
Yes, satisfying all constraints is major goal of reload/LRA.
>
> Vlad, should we be disallowing matching of eliminable registers here or just
> special ones like stack pointers and maybe others? If so, I guess we could
> add a strict param to get_hard_regno() and get_final_hard_regno() that
> doesn't allow eliminable registers by not calling
> lra_get_elimination_hard_regno() when strict. Thoughts?
I think we should ignore elimination here (in operand matching). The final
elimination is not guaranteed. We will create additional reloads (reg moves)
in case of ignoring elimination but they will be removed if the elimination
really happens.
Peter, please go ahead and try this approach. If it works I'll approve the
patch.
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Subject: [Bug fortran/77391] gfortran allows CHARACTER(LEN=:),PARAMETER:: STRING='constant' buts does not report it as an extension
Date: Fri, 26 Aug 2016 19:45:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77391
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Sorry, but I think the constraint C402 does not apply to named constants (AKA
PARAMETER). The constraint appears in
> 4.2 Type parameters
> 1 A type might be parameterized. In this case, the set of values,
> the syntax for denoting the values, and the set of operations on the values
> of the type depend on the values of the parameters.
I think the relevant parts for CHARACTER PARAMETER are
> 1.3.39.2
> named constant
> named data object with the PARAMETER attribute (5.5.13)
> 1.3.149.12.4
> length type parameter
> type parameter whose value is permitted to be assumed, deferred,
> or given by a specification expression
> 5.5.13 PARAMETER attribute
> 1 The PARAMETER attribute specifies that an entity is a named constant.
> The entity has the value specified by its constant-expr , converted,
> if necessary, to the type, type parameters and shape of the entity.
> C550 An entity with the PARAMETER attribute shall not be a variable,
> a coarray, or a procedure.
> C551 An expression that specifies a length type parameter or array bound
> of a named constant shall be a constant expression.
Last point, I don't see how a PARAMETER can be ALLOCATABLE.
>From gcc-bugs-return-535980-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 20:08:09 2016
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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/77391] gfortran allows CHARACTER(LEN=:),PARAMETER:: STRING='constant' buts does not report it as an extension
Date: Fri, 26 Aug 2016 20:08:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77391
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kargl at gcc dot gnu.org
--- Comment #3 from kargl at gcc dot gnu.org ---
(In reply to Dominique d'Humieres from comment #2)
> Sorry, but I think the constraint C402 does not apply to named constants
> (AKA PARAMETER).
It applies. C402 is a number constraint. A Fortran processor
must report violations of a constraint.
C402 (R401) A colon shall not be used as a type-param-value except
in the declaration of an entity or component that has the POINTER
or ALLOCATABLE attribute.
There is no "except for a named constant".
> Last point, I don't see how a PARAMETER can be ALLOCATABLE.
It takes all of 2 minutes to see that gfortran already reports
conflicts
troutmask:sgk[208] gfc7 -c a.f90
a.f90:3:34:
character(len=:),parameter,pointer :: ident2="which appears to be an
extension?"
1
Error: PARAMETER attribute conflicts with POINTER attribute at (1)
troutmask:sgk[209] gfc7 -c a.f90
a.f90:3:26:
character(len=:),parameter,allocatable :: ident2="which appears to be an
extension?"
1
Error: PARAMETER attribute conflicts with ALLOCATABLE attribute at (1)
>From gcc-bugs-return-535981-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Aug 26 20:30:44 2016
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From: "nathan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug lto/71959] [OpenACC] #pragma acc parallel leads to segfault in x86_64-pc-linux-gnu-accel-nvptx-none-gcc
Date: Fri, 26 Aug 2016 20:30:00 -0000
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--- Comment #7 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Fixed on gomp4 branch r239788.
You now get a link error, rather than an ICE.
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Tried to create an account on Bugzilla, won't let me create an account.
So posting directly to the bugs list.
cdecl says "const int const * pntr" is a syntax error.
GCC accepts the same construct without warning or error.
I suspect cdecl is correct.
user@hp-nx9420:~$ cdecl
Type `help' or `?' for help
cdecl> const int const * pntr
syntax error
cdecl> quit
user@hp-nx9420:~$ cat test.c
const int const * pntr;
user@hp-nx9420:~$ gcc -Wall -S test.c
user@hp-nx9420:~$
Toshi
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