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* [Bug debug/47684] New: -fcompare-debug failure with -O3
@ 2011-02-10 18:27 zsojka at seznam dot cz
2011-02-10 19:24 ` [Bug debug/47684] " jakub at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: zsojka at seznam dot cz @ 2011-02-10 18:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47684
Summary: -fcompare-debug failure with -O3
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
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 23297
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23297
reduced testcase
Compiler output:
$ gcc -O3 -fcompare-debug testcase.c
gcc: error: testcase.c: -fcompare-debug failure (length)
The generated code is very different with/without debug.
Tested revisions:
r169997 - fail
4.5 r168785 - fail
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug debug/47684] -fcompare-debug failure with -O3 2011-02-10 18:27 [Bug debug/47684] New: -fcompare-debug failure with -O3 zsojka at seznam dot cz @ 2011-02-10 19:24 ` jakub at gcc dot gnu.org 2011-02-10 19:36 ` jakub at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2011-02-10 19:24 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47684 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org Target Milestone|--- |4.6.0 --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-02-10 19:13:07 UTC --- No problems until predictive commoning, which makes different choices in between -g and -g0 compilations. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug debug/47684] -fcompare-debug failure with -O3 2011-02-10 18:27 [Bug debug/47684] New: -fcompare-debug failure with -O3 zsojka at seznam dot cz 2011-02-10 19:24 ` [Bug debug/47684] " jakub at gcc dot gnu.org @ 2011-02-10 19:36 ` jakub at gcc dot gnu.org 2011-02-11 14:27 ` jakub at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2011-02-10 19:36 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47684 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2011.02.10 19:31:41 AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org |gnu.org | Ever Confirmed|0 |1 --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-02-10 19:31:41 UTC --- Created attachment 23299 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23299 gcc46-pr47684.patch Untested fix. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug debug/47684] -fcompare-debug failure with -O3 2011-02-10 18:27 [Bug debug/47684] New: -fcompare-debug failure with -O3 zsojka at seznam dot cz 2011-02-10 19:24 ` [Bug debug/47684] " jakub at gcc dot gnu.org 2011-02-10 19:36 ` jakub at gcc dot gnu.org @ 2011-02-11 14:27 ` jakub at gcc dot gnu.org 2011-02-11 14:35 ` jakub at gcc dot gnu.org 2011-02-14 12:30 ` jakub at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2011-02-11 14:27 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47684 --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-02-11 14:24:30 UTC --- Author: jakub Date: Fri Feb 11 14:24:26 2011 New Revision: 170051 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170051 Log: PR debug/47684 * tree-predcom.c (single_nonlooparound_use): Ignore debug uses. * gcc.dg/pr47684.c: New test. Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug debug/47684] -fcompare-debug failure with -O3 2011-02-10 18:27 [Bug debug/47684] New: -fcompare-debug failure with -O3 zsojka at seznam dot cz ` (2 preceding siblings ...) 2011-02-11 14:27 ` jakub at gcc dot gnu.org @ 2011-02-11 14:35 ` jakub at gcc dot gnu.org 2011-02-14 12:30 ` jakub at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2011-02-11 14:35 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47684 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> 2011-02-11 14:27:39 UTC --- The actual fix was also http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170050 I've just committed wrong ChangeLog entries and commit message. Fixed. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug debug/47684] -fcompare-debug failure with -O3 2011-02-10 18:27 [Bug debug/47684] New: -fcompare-debug failure with -O3 zsojka at seznam dot cz ` (3 preceding siblings ...) 2011-02-11 14:35 ` jakub at gcc dot gnu.org @ 2011-02-14 12:30 ` jakub at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2011-02-14 12:30 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47684 --- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-02-14 12:25:35 UTC --- *** Bug 47415 has been marked as a duplicate of this bug. *** ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-02-14 12:26 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-02-10 18:27 [Bug debug/47684] New: -fcompare-debug failure with -O3 zsojka at seznam dot cz 2011-02-10 19:24 ` [Bug debug/47684] " jakub at gcc dot gnu.org 2011-02-10 19:36 ` jakub at gcc dot gnu.org 2011-02-11 14:27 ` jakub at gcc dot gnu.org 2011-02-11 14:35 ` jakub at gcc dot gnu.org 2011-02-14 12:30 ` jakub at gcc dot gnu.org
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