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* [Bug middle-end/52048] New: [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts
@ 2012-01-29 22:22 zsojka at seznam dot cz
2012-01-30 0:15 ` [Bug middle-end/52048] " jakub at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: zsojka at seznam dot cz @ 2012-01-29 22:22 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52048
Bug #: 52048
Summary: [4.7 Regression] -fcompare-debug failure with -O2
-fcompare-debug -fnon-call-exceptions
-fno-tree-dominator-opts
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 26510
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26510
autoreduced testcase (from g++.dg/torture/pr41775.C)
Compiler output:
$ gcc -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts
testcase.C
gcc: error: testcase.C: -fcompare-debug failure
$ diff testcase.*gkd
187,188c187,188
< (set (reg/f:DI 5 di [69])
< (plus:DI (reg/f:DI 5 di [orig:67 this ] [67])
---
> (set (reg/f:DI 5 di [68])
> (plus:DI (reg/f:DI 5 di [orig:66 this ] [66])
Tested revisions:
r183676 - fail
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug middle-end/52048] [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts 2012-01-29 22:22 [Bug middle-end/52048] New: [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts zsojka at seznam dot cz @ 2012-01-30 0:15 ` jakub at gcc dot gnu.org 2012-01-30 0:37 ` jakub at gcc dot gnu.org ` (5 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu.org @ 2012-01-30 0:15 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52048 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2012-01-29 CC| |jakub at gcc dot gnu.org Ever Confirmed|0 |1 --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-29 23:50:28 UTC --- Started with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183566 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/52048] [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts 2012-01-29 22:22 [Bug middle-end/52048] New: [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts zsojka at seznam dot cz 2012-01-30 0:15 ` [Bug middle-end/52048] " jakub at gcc dot gnu.org @ 2012-01-30 0:37 ` jakub at gcc dot gnu.org 2012-01-30 9:23 ` jakub at gcc dot gnu.org ` (4 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu.org @ 2012-01-30 0:37 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52048 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |4.7.0 ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/52048] [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts 2012-01-29 22:22 [Bug middle-end/52048] New: [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts zsojka at seznam dot cz 2012-01-30 0:15 ` [Bug middle-end/52048] " jakub at gcc dot gnu.org 2012-01-30 0:37 ` jakub at gcc dot gnu.org @ 2012-01-30 9:23 ` jakub at gcc dot gnu.org 2012-01-30 9:26 ` [Bug debug/52048] " jakub at gcc dot gnu.org ` (3 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu.org @ 2012-01-30 9:23 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52048 --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-30 07:52:12 UTC --- Probably tail-merge bug, looking into it. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug debug/52048] [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts 2012-01-29 22:22 [Bug middle-end/52048] New: [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts zsojka at seznam dot cz ` (2 preceding siblings ...) 2012-01-30 9:23 ` jakub at gcc dot gnu.org @ 2012-01-30 9:26 ` jakub at gcc dot gnu.org 2012-01-30 9:27 ` jakub at gcc dot gnu.org ` (2 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu.org @ 2012-01-30 9:26 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52048 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Component|middle-end |debug AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org |gnu.org | ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug debug/52048] [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts 2012-01-29 22:22 [Bug middle-end/52048] New: [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts zsojka at seznam dot cz ` (3 preceding siblings ...) 2012-01-30 9:26 ` [Bug debug/52048] " jakub at gcc dot gnu.org @ 2012-01-30 9:27 ` jakub at gcc dot gnu.org 2012-01-30 14:08 ` jakub at gcc dot gnu.org 2012-01-30 14:18 ` jakub at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu.org @ 2012-01-30 9:27 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52048 --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-30 09:02:33 UTC --- Created attachment 26514 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26514 gcc47-pr52048.patch Untested fix. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug debug/52048] [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts 2012-01-29 22:22 [Bug middle-end/52048] New: [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts zsojka at seznam dot cz ` (4 preceding siblings ...) 2012-01-30 9:27 ` jakub at gcc dot gnu.org @ 2012-01-30 14:08 ` jakub at gcc dot gnu.org 2012-01-30 14:18 ` jakub at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu.org @ 2012-01-30 14:08 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52048 --- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-30 13:47:42 UTC --- Author: jakub Date: Mon Jan 30 13:47:38 2012 New Revision: 183723 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183723 Log: PR debug/52048 * tree-ssa-tail-merge.c (local_def): Ignore debug uses. * g++.dg/other/pr52048.C: New test. Added: trunk/gcc/testsuite/g++.dg/other/pr52048.C Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-tail-merge.c ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug debug/52048] [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts 2012-01-29 22:22 [Bug middle-end/52048] New: [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts zsojka at seznam dot cz ` (5 preceding siblings ...) 2012-01-30 14:08 ` jakub at gcc dot gnu.org @ 2012-01-30 14:18 ` jakub at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu.org @ 2012-01-30 14:18 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52048 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-30 14:07:57 UTC --- Fixed. ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2012-01-30 14:08 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-01-29 22:22 [Bug middle-end/52048] New: [4.7 Regression] -fcompare-debug failure with -O2 -fcompare-debug -fnon-call-exceptions -fno-tree-dominator-opts zsojka at seznam dot cz 2012-01-30 0:15 ` [Bug middle-end/52048] " jakub at gcc dot gnu.org 2012-01-30 0:37 ` jakub at gcc dot gnu.org 2012-01-30 9:23 ` jakub at gcc dot gnu.org 2012-01-30 9:26 ` [Bug debug/52048] " jakub at gcc dot gnu.org 2012-01-30 9:27 ` jakub at gcc dot gnu.org 2012-01-30 14:08 ` jakub at gcc dot gnu.org 2012-01-30 14:18 ` jakub at gcc dot gnu.org
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