* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
@ 2015-02-27 14:34 ` iains at gcc dot gnu.org
2015-02-27 15:41 ` howarth at bromo dot med.uc.edu
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From: iains at gcc dot gnu.org @ 2015-02-27 14:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
Iain Sandoe <iains at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-02-27
CC| |iains at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to H.J. Lu from comment #0)
> On Linux/x86, r221040 caused:
>
> FAIL: gcc.dg/ipa/ipa-cp-1.c scan-ipa-dump cp "Alignment 2"
> FAIL: gcc.dg/ipa/ipa-cp-2.c scan-ipa-dump cp "Alignment 8, misalignment 4"
I suspect these ^^^ were unintentional commits - part of a different patch,
> FAIL: gcc.dg/noreturn-7.c (test for warnings, line 30)
> FAIL: gcc.target/i386/stackalign/longlong-2.c -mno-stackrealign
> scan-assembler-times and[lq]?[^\\n]*-16,[^\\n]*sp 2
> FAIL: gcc.target/i386/stackalign/longlong-2.c -mno-stackrealign
> scan-assembler-times and[lq]?[^\\n]*-8,[^\\n]*sp 2
> FAIL: gcc.target/i386/stackalign/longlong-2.c -mstackrealign
> scan-assembler-times and[lq]?[^\\n]*-16,[^\\n]*sp 2
> FAIL: gcc.target/i386/stackalign/longlong-2.c -mstackrealign
> scan-assembler-times and[lq]?[^\\n]*-8,[^\\n]*sp 2
>
> and may be
>
> FAIL: gcc.dg/guality/sra-1.c -O2 -flto -fno-use-linker-plugin
> -flto-partition=none line 32 a[0] == 4
> FAIL: gcc.dg/guality/sra-1.c -O2 line 21 a.i == 4
> FAIL: gcc.dg/guality/sra-1.c -O3 -fomit-frame-pointer line 21 a.i == 4
> FAIL: gcc.dg/guality/sra-1.c -O3 -g line 21 a.i == 4
> FAIL: gcc.dg/guality/sra-1.c -Os line 21 a.i == 4
On Darwin we also see:
gcc.dg/attr-noinline.c (all cases fail)
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
2015-02-27 14:34 ` [Bug ipa/65237] " iains at gcc dot gnu.org
@ 2015-02-27 15:41 ` howarth at bromo dot med.uc.edu
2015-02-27 15:43 ` marxin at gcc dot gnu.org
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From: howarth at bromo dot med.uc.edu @ 2015-02-27 15:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
howarth at bromo dot med.uc.edu changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |howarth at bromo dot med.uc.edu
--- Comment #2 from howarth at bromo dot med.uc.edu ---
(In reply to Iain Sandoe from comment #1)
>
> On Darwin we also see:
> gcc.dg/attr-noinline.c (all cases fail)
Didin't Martin analyze this failure as the test case just needing "/* {
dg-require-alias "" } */"?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65150#c13
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
2015-02-27 14:34 ` [Bug ipa/65237] " iains at gcc dot gnu.org
2015-02-27 15:41 ` howarth at bromo dot med.uc.edu
@ 2015-02-27 15:43 ` marxin at gcc dot gnu.org
2015-02-27 15:55 ` dominiq at lps dot ens.fr
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From: marxin at gcc dot gnu.org @ 2015-02-27 15:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to howarth from comment #2)
> (In reply to Iain Sandoe from comment #1)
>
> >
> > On Darwin we also see:
> > gcc.dg/attr-noinline.c (all cases fail)
>
> Didin't Martin analyze this failure as the test case just needing "/* {
> dg-require-alias "" } */"?
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65150#c13
Yes, I think the test should be decoared with dg-require-alias.
>From gcc-bugs-return-478754-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Feb 27 15:27:12 2015
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/65237] [5 Regression] r221040 caused many regressions
Date: Fri, 27 Feb 2015 15:47:00 -0000
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--- Comment #4 from Iain Sandoe <iains at gcc dot gnu.org> ---
((In reply to howarth from comment #2)
> (In reply to Iain Sandoe from comment #1)
>
> >
> > On Darwin we also see:
> > gcc.dg/attr-noinline.c (all cases fail)
>
> Didin't Martin analyze this failure as the test case just needing "/* {
> dg-require-alias "" } */"?
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?ide150#c13
That was before Honza did his last round of analysis/changes, just want to be
sure what the correct "fix" is - after all we used to pass that test, right?
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
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From: dominiq at lps dot ens.fr @ 2015-02-27 15:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Yes, I think the test should be decoared with dg-require-alias.
Well, the test used to pass.
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
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To: gcc-bugs
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="UTF-8", Size: 3322 bytes --]
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
--- Comment #6 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #3)
> (In reply to howarth from comment #2)
> > (In reply to Iain Sandoe from comment #1)
> >
> > >
> > > On Darwin we also see:
> > > gcc.dg/attr-noinline.c (all cases fail)
> >
> > Didin't Martin analyze this failure as the test case just needing "/* {
> > dg-require-alias "" } */"?
> >
> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65150#c13
>
> Yes, I think the test should be decoared with dg-require-alias.
hmm.. so should we understand that we used to pass that test .. "incorrectly?"
..
.. it's not clear to me that changing the test to require symbol alias isn't
still a regression ⦠(I'd like to understand that the code-gen is equivalent).
>From gcc-bugs-return-478757-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Feb 27 15:31:54 2015
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To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/65235] [4.8/4.9/5 Regression] Simplifying vec_select of vec_concat miscompiles when first element of vec_concat is const_int
Date: Fri, 27 Feb 2015 15:58:00 -0000
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Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |aldyh at gcc dot gnu.org
--- Comment #1 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Hi. The known to work field is empty. Is this a regression?
I can't reproduce on a cross build to --targetªrch64-linux by running cc1.
What options causes this to fail? Could you post a preprocessed file for the
test?
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
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From: hubicka at gcc dot gnu.org @ 2015-02-27 16:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
Jan Hubicka <hubicka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu.org
--- Comment #7 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
I sorry, I did not meant to commit ipa-cp-[1,2] patches. Will remove them
shortly.
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* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
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From: hubicka at ucw dot cz @ 2015-02-27 17:37 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #8 from Jan Hubicka <hubicka at ucw dot cz> ---
>
> FAIL: gcc.dg/ipa/ipa-cp-1.c scan-ipa-dump cp "Alignment 2"
> FAIL: gcc.dg/ipa/ipa-cp-2.c scan-ipa-dump cp "Alignment 8, misalignment 4"
Sorry, these was unintentinal commits, I will revert them soon.
> FAIL: gcc.dg/noreturn-7.c (test for warnings, line 30)
Here we do merging before outputting a warning (testcase expects two warnings).
I suppose there is not much to do than -fno-ipa-cp.
Once user adds one noreturn, he will get warning for anohter, because the
functions will no longer get merged.
> FAIL: gcc.target/i386/stackalign/longlong-2.c -mno-stackrealign
> scan-assembler-times and[lq]?[^\\n]*-16,[^\\n]*sp 2
> FAIL: gcc.target/i386/stackalign/longlong-2.c -mno-stackrealign
> scan-assembler-times and[lq]?[^\\n]*-8,[^\\n]*sp 2
> FAIL: gcc.target/i386/stackalign/longlong-2.c -mstackrealign
> scan-assembler-times and[lq]?[^\\n]*-16,[^\\n]*sp 2
> FAIL: gcc.target/i386/stackalign/longlong-2.c -mstackrealign
> scan-assembler-times and[lq]?[^\\n]*-8,[^\\n]*sp 2
I suppose here we merge
void f2 (void)
{
unsigned long long a __attribute__((aligned (8)));
fn (&a);
}
and
void f4 (void)
{
unsigned long long a __attribute__((aligned (16)));
fn (&a);
}
I already discussed with Martin yesterday that we need to compare alignments.
I think he has patch on a way
Honza
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
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From: hubicka at ucw dot cz @ 2015-02-27 17:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
--- Comment #9 from Jan Hubicka <hubicka at ucw dot cz> ---
> >
> > On Darwin we also see:
> > gcc.dg/attr-noinline.c (all cases fail)
>
> Didin't Martin analyze this failure as the test case just needing "/* {
> dg-require-alias "" } */"?
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65150#c13
I would just add -fno-ipa-cp. The testcase matching does not expect functions
to be turned into
wrappers - it counts number of occurences of calls after optimization. I will
fix that, too.
Honza
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
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From: hubicka at gcc dot gnu.org @ 2015-02-27 18:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
--- Comment #10 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Fri Feb 27 16:56:57 2015
New Revision: 221065
URL: https://gcc.gnu.org/viewcvs?rev=221065&root=gcc&view=rev
Log:
PR ipa/65237
* gcc.dg/attr-noinline.c: Add -fno-ipa-icf
* gcc.dg/noreturn-7.c: Add -fno-ipa-icf.
* gcc.dg/ipa/ipa-cp-1.c: Revert accidental commit.
* gcc.dg/ipa/ipa-cp-2.c: Revert accidental commit.
Removed:
trunk/gcc/testsuite/gcc.dg/ipa/ipa-cp-1.c
trunk/gcc/testsuite/gcc.dg/ipa/ipa-cp-2.c
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/attr-noinline.c
trunk/gcc/testsuite/gcc.dg/noreturn-7.c
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
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From: pthaugen at gcc dot gnu.org @ 2015-02-27 22:25 UTC (permalink / raw)
To: gcc-bugs
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Pat Haugen <pthaugen at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bergner at gcc dot gnu.org,
| |dje at gcc dot gnu.org
--- Comment #12 from Pat Haugen <pthaugen at gcc dot gnu.org> ---
Commentary got lost for prior attachment...
483.xalancbmk from cpu2006 started to fail building on powerpc64[le] with the
subject revision.
Not sure if this should really be directed at pr64988 since it's the same ICE,
but starting here since it was introduced with r221040.
[pthaugen@igoo delta]$ /home/pthaugen/install/gcc/gcc_hunt/bin/g++ -c -m64 -O2
DOMBuilderImpl.cpp
DOMBuilderImpl.cpp:27:2: error: Alias and target's comdat groups differs
}
^
_ZN11xercesc_2_514DOMBuilderImpl11resetErrorsEv/7 (virtual void
xercesc_2_5::DOMBuilderImpl::resetErrors()) @0xfff85df20d0
Type: function definition analyzed
Visibility: externally_visible public virtual
Address is taken.
References:
Referring: *.LTHUNK0/5
(alias)_ZN11xercesc_2_514DOMBuilderImpl13resetEntitiesEv/4
(alias)_ZTVN11xercesc_2_514DOMBuilderImplE/8 (addr)
Availability: available
First run: 0
Function flags: body icf_merged
Called by:
Calls:
*.LTHUNK0/5 (virtual void *.LTHUNK0()) @0xfff85df1db0
Type: function definition analyzed alias cpp_implicit_alias
Visibility: prevailing_def_ironly
comdat_group:_ZN11xercesc_2_514DOMBuilderImpl13resetEntitiesEv virtual
artificial
Same comdat group as:
_ZThn8_N11xercesc_2_514DOMBuilderImpl13resetEntitiesEv/6
References: _ZN11xercesc_2_514DOMBuilderImpl11resetErrorsEv/7 (alias)
Referring:
Availability: available
First run: 0
Function flags:
Called by: _ZThn8_N11xercesc_2_514DOMBuilderImpl13resetEntitiesEv/6 (1.00 per
call)
Calls:
DOMBuilderImpl.cpp:27:2: internal compiler error: verify_cgraph_node failed
0x104f4f83 cgraph_node::verify_node()
/home/pthaugen/src/gcc/gcc_hunt/gcc/gcc/cgraph.c:3031
0x104e6d97 symtab_node::verify()
/home/pthaugen/src/gcc/gcc_hunt/gcc/gcc/symtab.c:1103
0x104e6e97 symtab_node::verify_symtab_nodes()
/home/pthaugen/src/gcc/gcc_hunt/gcc/gcc/symtab.c:1123
0x107b148b symbol_table::remove_unreachable_nodes(_IO_FILE*)
/home/pthaugen/src/gcc/gcc_hunt/gcc/gcc/ipa.c:686
0x108bf4b3 execute_todo
/home/pthaugen/src/gcc/gcc_hunt/gcc/gcc/passes.c:2023
Please submit a full bug report,
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
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From: hubicka at gcc dot gnu.org @ 2015-02-28 21:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
--- Comment #13 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
The alias is really in a wrong comdat group. C++ FE should produce lthunk
correctly. It may be related to PR64988
I suppose the code I added to resolve_alias to redirect aliases of aliases to
their target triggered more of sanity check here.
I am looking into the ARM alias issue and will try to look into this later
today.
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
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From: hjl.tools at gmail dot com @ 2015-02-28 21:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
--- Comment #14 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Pat Haugen from comment #12)
> Commentary got lost for prior attachment...
>
> 483.xalancbmk from cpu2006 started to fail building on powerpc64[le] with
> the subject revision.
>
I got the same error on Linux/x86-64.
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
` (11 preceding siblings ...)
2015-02-28 21:40 ` hjl.tools at gmail dot com
@ 2015-03-02 8:45 ` rguenth at gcc dot gnu.org
2015-03-02 17:21 ` hubicka at gcc dot gnu.org
` (2 subsequent siblings)
15 siblings, 0 replies; 17+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-03-02 8:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Target Milestone|--- |5.0
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
` (12 preceding siblings ...)
2015-03-02 8:45 ` rguenth at gcc dot gnu.org
@ 2015-03-02 17:21 ` hubicka at gcc dot gnu.org
2015-03-02 17:28 ` hjl.tools at gmail dot com
2015-03-02 17:49 ` hubicka at gcc dot gnu.org
15 siblings, 0 replies; 17+ messages in thread
From: hubicka at gcc dot gnu.org @ 2015-03-02 17:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
Jan Hubicka <hubicka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
--- Comment #16 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
We mixed several issues in this PR, but I believe all are now fixed.
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
` (13 preceding siblings ...)
2015-03-02 17:21 ` hubicka at gcc dot gnu.org
@ 2015-03-02 17:28 ` hjl.tools at gmail dot com
2015-03-02 17:49 ` hubicka at gcc dot gnu.org
15 siblings, 0 replies; 17+ messages in thread
From: hjl.tools at gmail dot com @ 2015-03-02 17:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
--- Comment #17 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Jan Hubicka from comment #16)
> We mixed several issues in this PR, but I believe all are now fixed.
As of r221117, I still see
FAIL: gcc.dg/guality/sra-1.c -O2 -flto -fno-use-linker-plugin
-flto-partition=none line 32 a[0] == 4
FAIL: gcc.dg/guality/sra-1.c -O2 line 21 a.i == 4
FAIL: gcc.dg/guality/sra-1.c -O3 -fomit-frame-pointer line 21 a.i == 4
FAIL: gcc.dg/guality/sra-1.c -O3 -g line 21 a.i == 4
FAIL: gcc.dg/guality/sra-1.c -Os line 21 a.i == 4
on Linux/x86-32.
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug ipa/65237] [5 Regression] r221040 caused many regressions
2015-02-27 14:15 [Bug ipa/65237] New: [5 Regression] r221040 caused many regressions hjl.tools at gmail dot com
` (14 preceding siblings ...)
2015-03-02 17:28 ` hjl.tools at gmail dot com
@ 2015-03-02 17:49 ` hubicka at gcc dot gnu.org
15 siblings, 0 replies; 17+ messages in thread
From: hubicka at gcc dot gnu.org @ 2015-03-02 17:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65237
Jan Hubicka <hubicka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #18 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
We have https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63572 about debugging
issues. I added the note there and closing this one.
^ permalink raw reply [flat|nested] 17+ messages in thread