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* [Bug rtl-optimization/46238] New: s390x bootstrap problem: wrong code generated due to crossjumping
@ 2010-10-30 7:37 krebbel at gcc dot gnu.org
2010-10-30 7:38 ` [Bug rtl-optimization/46238] " krebbel at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: krebbel at gcc dot gnu.org @ 2010-10-30 7:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46238
Summary: s390x bootstrap problem: wrong code generated due to
crossjumping
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: critical
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: krebbel@gcc.gnu.org
collect2 gets miscompiled due to a bug in cfgcleanup.
try_head_merge_bb moves an insn setting r2 over an insn clobbering that
register. DCE removes the set afterwards. try_head_merge_bb doesn't notice due
to wrong live info in the 'live_union' variable.
Proposed fix:
http://gcc.gnu.org/ml/gcc-patches/2010-10/msg02569.html
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug rtl-optimization/46238] s390x bootstrap problem: wrong code generated due to crossjumping 2010-10-30 7:37 [Bug rtl-optimization/46238] New: s390x bootstrap problem: wrong code generated due to crossjumping krebbel at gcc dot gnu.org @ 2010-10-30 7:38 ` krebbel at gcc dot gnu.org 2010-11-03 12:37 ` [Bug rtl-optimization/46238] s390x bootstrap problem: wrong code generated in cfgcleanup/crossjumping krebbel at gcc dot gnu.org ` (5 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: krebbel at gcc dot gnu.org @ 2010-10-30 7:38 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46238 Andreas Krebbel <krebbel at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |s390x-ibm-linux Priority|P3 |P2 CC| |bernds at codesourcery dot | |com Host| |s390x-ibm-linux Build| |s390x-ibm-linux ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/46238] s390x bootstrap problem: wrong code generated in cfgcleanup/crossjumping 2010-10-30 7:37 [Bug rtl-optimization/46238] New: s390x bootstrap problem: wrong code generated due to crossjumping krebbel at gcc dot gnu.org 2010-10-30 7:38 ` [Bug rtl-optimization/46238] " krebbel at gcc dot gnu.org @ 2010-11-03 12:37 ` krebbel at gcc dot gnu.org 2010-11-03 17:10 ` hjl.tools at gmail dot com ` (4 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: krebbel at gcc dot gnu.org @ 2010-11-03 12:37 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46238 Andreas Krebbel <krebbel at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P2 |P1 Severity|critical |blocker --- Comment #1 from Andreas Krebbel <krebbel at gcc dot gnu.org> 2010-11-03 12:36:56 UTC --- I've raised the prio and severity. This problem currently prevents our GCC daily build system from doing proper testing. That way we will not get aware of other potential problems introduced in the meantime. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/46238] s390x bootstrap problem: wrong code generated in cfgcleanup/crossjumping 2010-10-30 7:37 [Bug rtl-optimization/46238] New: s390x bootstrap problem: wrong code generated due to crossjumping krebbel at gcc dot gnu.org 2010-10-30 7:38 ` [Bug rtl-optimization/46238] " krebbel at gcc dot gnu.org 2010-11-03 12:37 ` [Bug rtl-optimization/46238] s390x bootstrap problem: wrong code generated in cfgcleanup/crossjumping krebbel at gcc dot gnu.org @ 2010-11-03 17:10 ` hjl.tools at gmail dot com 2010-11-03 18:32 ` [Bug rtl-optimization/46238] [4.6 Regression] " pinskia at gcc dot gnu.org ` (3 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: hjl.tools at gmail dot com @ 2010-11-03 17:10 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46238 H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2010.11.03 17:10:33 Target Milestone|--- |4.6.0 Ever Confirmed|0 |1 --- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2010-11-03 17:10:33 UTC --- Please try revision 166259. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/46238] [4.6 Regression] s390x bootstrap problem: wrong code generated in cfgcleanup/crossjumping 2010-10-30 7:37 [Bug rtl-optimization/46238] New: s390x bootstrap problem: wrong code generated due to crossjumping krebbel at gcc dot gnu.org ` (2 preceding siblings ...) 2010-11-03 17:10 ` hjl.tools at gmail dot com @ 2010-11-03 18:32 ` pinskia at gcc dot gnu.org 2010-11-04 8:47 ` krebbel at gcc dot gnu.org ` (2 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: pinskia at gcc dot gnu.org @ 2010-11-03 18:32 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46238 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |NEW Summary|s390x bootstrap problem: |[4.6 Regression] s390x |wrong code generated in |bootstrap problem: wrong |cfgcleanup/crossjumping |code generated in | |cfgcleanup/crossjumping ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/46238] [4.6 Regression] s390x bootstrap problem: wrong code generated in cfgcleanup/crossjumping 2010-10-30 7:37 [Bug rtl-optimization/46238] New: s390x bootstrap problem: wrong code generated due to crossjumping krebbel at gcc dot gnu.org ` (3 preceding siblings ...) 2010-11-03 18:32 ` [Bug rtl-optimization/46238] [4.6 Regression] " pinskia at gcc dot gnu.org @ 2010-11-04 8:47 ` krebbel at gcc dot gnu.org 2010-11-04 16:06 ` krebbel at gcc dot gnu.org 2010-11-05 12:30 ` jakub at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: krebbel at gcc dot gnu.org @ 2010-11-04 8:47 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46238 --- Comment #3 from Andreas Krebbel <krebbel at gcc dot gnu.org> 2010-11-04 08:47:26 UTC --- (In reply to comment #2) > Please try revision 166259. Ok. I've started bootstrap. I'm quite sure that reverting the will fix the problem. Perhaps I missed that on the list but when was it decided to revert the patch? Have you tried my patch? It definitely fixes on of the problems for me. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/46238] [4.6 Regression] s390x bootstrap problem: wrong code generated in cfgcleanup/crossjumping 2010-10-30 7:37 [Bug rtl-optimization/46238] New: s390x bootstrap problem: wrong code generated due to crossjumping krebbel at gcc dot gnu.org ` (4 preceding siblings ...) 2010-11-04 8:47 ` krebbel at gcc dot gnu.org @ 2010-11-04 16:06 ` krebbel at gcc dot gnu.org 2010-11-05 12:30 ` jakub at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: krebbel at gcc dot gnu.org @ 2010-11-04 16:06 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46238 --- Comment #4 from Andreas Krebbel <krebbel at gcc dot gnu.org> 2010-11-04 16:05:52 UTC --- (In reply to comment #2) > Please try revision 166259. As expected reverting the patch fixes bootstrap on s390x. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/46238] [4.6 Regression] s390x bootstrap problem: wrong code generated in cfgcleanup/crossjumping 2010-10-30 7:37 [Bug rtl-optimization/46238] New: s390x bootstrap problem: wrong code generated due to crossjumping krebbel at gcc dot gnu.org ` (5 preceding siblings ...) 2010-11-04 16:06 ` krebbel at gcc dot gnu.org @ 2010-11-05 12:30 ` jakub at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu.org @ 2010-11-05 12:30 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46238 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |jakub at gcc dot gnu.org Resolution| |FIXED --- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-11-05 12:30:19 UTC --- Fixed then. ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2010-11-05 12:30 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2010-10-30 7:37 [Bug rtl-optimization/46238] New: s390x bootstrap problem: wrong code generated due to crossjumping krebbel at gcc dot gnu.org 2010-10-30 7:38 ` [Bug rtl-optimization/46238] " krebbel at gcc dot gnu.org 2010-11-03 12:37 ` [Bug rtl-optimization/46238] s390x bootstrap problem: wrong code generated in cfgcleanup/crossjumping krebbel at gcc dot gnu.org 2010-11-03 17:10 ` hjl.tools at gmail dot com 2010-11-03 18:32 ` [Bug rtl-optimization/46238] [4.6 Regression] " pinskia at gcc dot gnu.org 2010-11-04 8:47 ` krebbel at gcc dot gnu.org 2010-11-04 16:06 ` krebbel at gcc dot gnu.org 2010-11-05 12:30 ` jakub at gcc dot gnu.org
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