* [Bug ipa/65432] [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958)
2015-03-15 6:37 [Bug ipa/65432] New: [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958) trippels at gcc dot gnu.org
@ 2015-03-15 9:06 ` trippels at gcc dot gnu.org
2015-03-16 10:50 ` jakub at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: trippels at gcc dot gnu.org @ 2015-03-15 9:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65432
--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
To reproduce:
trippels@gcc2-power8 testsuite % ~/gcc_valgrind/usr/local/bin/g++ -c -O2
-fdump-ipa-icf -fno-inline g++.dg/ipa/ipa-icf-4.C
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug ipa/65432] [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958)
2015-03-15 6:37 [Bug ipa/65432] New: [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958) trippels at gcc dot gnu.org
2015-03-15 9:06 ` [Bug ipa/65432] " trippels at gcc dot gnu.org
@ 2015-03-16 10:50 ` jakub at gcc dot gnu.org
2015-03-18 11:37 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2015-03-16 10:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65432
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Can't reproduce on x86_64-linux.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug ipa/65432] [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958)
2015-03-15 6:37 [Bug ipa/65432] New: [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958) trippels at gcc dot gnu.org
2015-03-15 9:06 ` [Bug ipa/65432] " trippels at gcc dot gnu.org
2015-03-16 10:50 ` jakub at gcc dot gnu.org
@ 2015-03-18 11:37 ` rguenth at gcc dot gnu.org
2015-03-18 13:09 ` marxin at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-03-18 11:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65432
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mliska at suse dot cz
Target Milestone|--- |5.0
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug ipa/65432] [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958)
2015-03-15 6:37 [Bug ipa/65432] New: [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958) trippels at gcc dot gnu.org
` (2 preceding siblings ...)
2015-03-18 11:37 ` rguenth at gcc dot gnu.org
@ 2015-03-18 13:09 ` marxin at gcc dot gnu.org
2015-03-18 13:18 ` trippels at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: marxin at gcc dot gnu.org @ 2015-03-18 13:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65432
--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 35057
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35057&action=edit
Suggested patch
I guess the problem is caused by missing xstdup_for_dump wrappers.
Can you please Markus test for me the patch?
Thanks
>From gcc-bugs-return-480676-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Mar 18 13:13:45 2015
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Subject: [Bug middle-end/64491] [5 Regression] incorrect warning: loop exit may only be reached after undefined behavior
Date: Wed, 18 Mar 2015 13:13:00 -0000
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--- Comment #15 from Andrew Stubbs <ams at gcc dot gnu.org> ---
Yeah, I've not managed to come up with a better solution, so I think I'll just
revert the patch, for now. :-(
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug ipa/65432] [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958)
2015-03-15 6:37 [Bug ipa/65432] New: [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958) trippels at gcc dot gnu.org
` (3 preceding siblings ...)
2015-03-18 13:09 ` marxin at gcc dot gnu.org
@ 2015-03-18 13:18 ` trippels at gcc dot gnu.org
2015-03-18 13:21 ` marxin at gcc dot gnu.org
2015-03-18 14:17 ` marxin at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: trippels at gcc dot gnu.org @ 2015-03-18 13:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65432
--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #3)
> Created attachment 35057 [details]
> Suggested patch
>
> I guess the problem is caused by missing xstdup_for_dump wrappers.
> Can you please Markus test for me the patch?
The patch fixes the issue. Thanks.
>From gcc-bugs-return-480680-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Mar 18 13:18:51 2015
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Subject: [Bug target/65222] [5 Regression] -mtune= or -march=: Not all options not documented: slm, knl, shanghai, istanbul
Date: Wed, 18 Mar 2015 13:18:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-03-18
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug ipa/65432] [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958)
2015-03-15 6:37 [Bug ipa/65432] New: [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958) trippels at gcc dot gnu.org
` (4 preceding siblings ...)
2015-03-18 13:18 ` trippels at gcc dot gnu.org
@ 2015-03-18 13:21 ` marxin at gcc dot gnu.org
2015-03-18 14:17 ` marxin at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: marxin at gcc dot gnu.org @ 2015-03-18 13:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65432
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Markus Trippelsdorf from comment #4)
> (In reply to Martin Liška from comment #3)
> > Created attachment 35057 [details]
> > Suggested patch
> >
> > I guess the problem is caused by missing xstdup_for_dump wrappers.
> > Can you please Markus test for me the patch?
>
> The patch fixes the issue. Thanks.
Thanks. I'm going to send the patch to mailing list.
>From gcc-bugs-return-480685-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Mar 18 13:26:32 2015
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug lto/65243] [5 Regression] lto1 ICE (segfault) on powerpc64le-linux-gnu
Date: Wed, 18 Mar 2015 13:26:00 -0000
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed|2015-03-02 00:00:00 |2015-03-18
Ever confirmed|0 |1
--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
The original ICE means that in
inline hashval_t
external_ref_hasher::hash (const value_type *r)
{
dw_die_ref die = r->type;
hashval_t h = 0;
/* We can't use the address of the DIE for hashing, because
that will make the order of the stub DIEs non-deterministic. */
if (! die->comdat_type_p)
/* We have a symbol; use it to compute a hash. */
h = htab_hash_string (die->die_id.die_symbol);
die->die_id.die_symbol is NULL (I suppose).
I suppose the guard means that in non-LTO this _is_ a comdat type. But
LTO somehow demoted it?
We still lack a proper testcase.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug ipa/65432] [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958)
2015-03-15 6:37 [Bug ipa/65432] New: [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958) trippels at gcc dot gnu.org
` (5 preceding siblings ...)
2015-03-18 13:21 ` marxin at gcc dot gnu.org
@ 2015-03-18 14:17 ` marxin at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: marxin at gcc dot gnu.org @ 2015-03-18 14:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65432
--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Wed Mar 18 14:16:59 2015
New Revision: 221491
URL: https://gcc.gnu.org/viewcvs?rev=221491&root=gcc&view=rev
Log:
Fix PR ipa/65432
PR ipa/65432
* cgraph.c (cgraph_node::get_create): Remove unnecessary
xstrdup_for_dump wrapper.
* ipa-icf.c (sem_item::dump): Use symtab_node::name instead of
sem_item::name.
(sem_function::equals): Wrap symtab_node::name and symtab_node::asm_name
with xstrdup_for_dump.
(sem_variable::equals): Likewise.
(sem_item_optimizer::read_section): Use symtab_node::name instead of
sem_item::name.
(sem_item_optimizer::parse_funcs_and_vars): Likewise.
(sem_item_optimizer::merge_classes): Wrap symtab_node::name and
symtab_node::asm_name with xstrdup_for_dump.
(congruence_class::dump): Use symtab_node::name instead of
sem_item::name.
* ipa-icf.h (symtab_node::name): Remove.
(symtab_node::asm_name): Likewise.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/cgraph.c
trunk/gcc/ipa-icf.c
trunk/gcc/ipa-icf.h
>From gcc-bugs-return-480696-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Mar 18 14:22:06 2015
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Subject: [Bug ipa/65432] [5 Regression] Invalid read of size 1: ipa_icf::sem_item_optimizer::merge_classes(unsigned int) (ipa-icf.c:2958)
Date: Wed, 18 Mar 2015 14:22:00 -0000
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Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #7 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed in 5.0.0.
>From gcc-bugs-return-480698-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Mar 18 14:27:53 2015
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Subject: [Bug testsuite/64032] [5 Regression] FAIL: gcc.dg/undefined-loop-2.c (test for warnings, line 18)
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd032
--- Comment #7 from Andrew Stubbs <ams at gcc dot gnu.org> ---
Author: ams
Date: Wed Mar 18 14:27:13 2015
New Revision: 221492
URL: https://gcc.gnu.org/viewcvs?rev"1492&root=gcc&view=rev
Log:
Fix PR64491
2015-03-18 Andrew Stubbs <ams@codesourcery.com>
PR middle-end/64491
Revert:
2014-11-20 Andrew Stubbs <ams@codesourcery.com>
* tree-ssa-loop-niter.c (maybe_lower_iteration_bound): Warn if a loop
condition would be removed due to undefined behaviour.
2015-03-18 Andrew Stubbs <ams@codesourcery.com>
PR middle-end/64491
Revert:
2014-11-20 Andrew Stubbs <ams@codesourcery.com>
* gcc.dg/undefined-loop-1.c: New file.
* gcc.dg/undefined-loop-2.c: New file.
2014-12-24 Andrew Stubbs <ams@codesourcery.com>
PR testsuite/64032
* gcc.dg/undefined-loop-2.c: Don't allow GCC to optimize away the
loop exits too early.
Removed:
trunk/gcc/testsuite/gcc.dg/undefined-loop-1.c
trunk/gcc/testsuite/gcc.dg/undefined-loop-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-loop-niter.c
^ permalink raw reply [flat|nested] 8+ messages in thread