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* [Bug middle-end/51261] New: [4.7 Regression] -fcompare-debug with memset()
@ 2011-11-21 22:13 zsojka at seznam dot cz
2011-11-22 7:11 ` [Bug middle-end/51261] " zsojka at seznam dot cz
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: zsojka at seznam dot cz @ 2011-11-21 22:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51261
Bug #: 51261
Summary: [4.7 Regression] -fcompare-debug with memset()
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: zsojka@seznam.cz
CC: aoliva@gcc.gnu.org
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 25874
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25874
reduced testcase
There have been many -fcompare-debug failures in the last testsuite run.
Compiler output:
$ gcc -fcompare-debug testcase.C
gcc: error: testcase.C: -fcompare-debug failure
Tested revisions:
r181550 - fail
r181508 - fail
r181442 - OK
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/51261] [4.7 Regression] -fcompare-debug with memset()
2011-11-21 22:13 [Bug middle-end/51261] New: [4.7 Regression] -fcompare-debug with memset() zsojka at seznam dot cz
@ 2011-11-22 7:11 ` zsojka at seznam dot cz
2011-11-22 15:26 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: zsojka at seznam dot cz @ 2011-11-22 7:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51261
--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> 2011-11-22 05:30:59 UTC ---
Happens in r181597 as well.
$ diff testcase.*gkd
52c52
< (const_int 32675 [0x7fa3]))) testcase.C:3# {*cmpdi_1}
---
> (const_int 32551 [0x7f27]))) testcase.C:3# {*cmpdi_1}
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/51261] [4.7 Regression] -fcompare-debug with memset()
2011-11-21 22:13 [Bug middle-end/51261] New: [4.7 Regression] -fcompare-debug with memset() zsojka at seznam dot cz
2011-11-22 7:11 ` [Bug middle-end/51261] " zsojka at seznam dot cz
@ 2011-11-22 15:26 ` jakub at gcc dot gnu.org
2011-11-23 13:00 ` [Bug target/51261] " jakub at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-11-22 15:26 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51261
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2011-11-22
CC| |jakub at gcc dot gnu.org
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
Ever Confirmed|0 |1
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/51261] [4.7 Regression] -fcompare-debug with memset()
2011-11-21 22:13 [Bug middle-end/51261] New: [4.7 Regression] -fcompare-debug with memset() zsojka at seznam dot cz
2011-11-22 7:11 ` [Bug middle-end/51261] " zsojka at seznam dot cz
2011-11-22 15:26 ` jakub at gcc dot gnu.org
@ 2011-11-23 13:00 ` jakub at gcc dot gnu.org
2011-11-23 21:13 ` jakub at gcc dot gnu.org
2011-11-24 0:22 ` jakub at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-11-23 13:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51261
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-23 12:14:49 UTC ---
Created attachment 25900
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25900
gcc47-pr51261.patch
Untested fix.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/51261] [4.7 Regression] -fcompare-debug with memset()
2011-11-21 22:13 [Bug middle-end/51261] New: [4.7 Regression] -fcompare-debug with memset() zsojka at seznam dot cz
` (2 preceding siblings ...)
2011-11-23 13:00 ` [Bug target/51261] " jakub at gcc dot gnu.org
@ 2011-11-23 21:13 ` jakub at gcc dot gnu.org
2011-11-24 0:22 ` jakub at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-11-23 21:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51261
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-23 20:29:11 UTC ---
Author: jakub
Date: Wed Nov 23 20:29:08 2011
New Revision: 181676
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181676
Log:
PR target/51261
* config/i386/i386.c (decide_alg): Initialize *dynamic_check
even if !optimize.
* gcc.dg/pr51261.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr51261.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/51261] [4.7 Regression] -fcompare-debug with memset()
2011-11-21 22:13 [Bug middle-end/51261] New: [4.7 Regression] -fcompare-debug with memset() zsojka at seznam dot cz
` (3 preceding siblings ...)
2011-11-23 21:13 ` jakub at gcc dot gnu.org
@ 2011-11-24 0:22 ` jakub at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-11-24 0:22 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51261
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-23 22:52:26 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2011-11-21 22:13 [Bug middle-end/51261] New: [4.7 Regression] -fcompare-debug with memset() zsojka at seznam dot cz
2011-11-22 7:11 ` [Bug middle-end/51261] " zsojka at seznam dot cz
2011-11-22 15:26 ` jakub at gcc dot gnu.org
2011-11-23 13:00 ` [Bug target/51261] " jakub at gcc dot gnu.org
2011-11-23 21:13 ` jakub at gcc dot gnu.org
2011-11-24 0:22 ` jakub at gcc dot gnu.org
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