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* [Bug middle-end/46185] New: [4.6 Regression] gcc.dg/graphite/interchange-4.c FAILs with -fno-ipa-cp
@ 2010-10-26 14:23 zsojka at seznam dot cz
  2010-10-26 18:19 ` [Bug middle-end/46185] " hjl.tools at gmail dot com
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: zsojka at seznam dot cz @ 2010-10-26 14:23 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46185

           Summary: [4.6 Regression] gcc.dg/graphite/interchange-4.c FAILs
                    with -fno-ipa-cp
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Output (with #define DEBUG 1):
$ gcc -O2 -floop-interchange -ffast-math interchange-4.c && ./a.out
res = 3565793
$ gcc -O2 -floop-interchange -ffast-math interchange-4.c -fno-ipa-cp && ./a.out
res = 1343 
Aborted
$ gcc -O1 -floop-interchange -ffast-math interchange-4.c && ./a.out
res = 1343 
Aborted

The same effect can be achieved by adding attribute noclone to foo().

Tested revisions:
r165915 - fail
r163636 - fail
r161659 - OK


^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2010-12-07  4:31 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-10-26 14:23 [Bug middle-end/46185] New: [4.6 Regression] gcc.dg/graphite/interchange-4.c FAILs with -fno-ipa-cp zsojka at seznam dot cz
2010-10-26 18:19 ` [Bug middle-end/46185] " hjl.tools at gmail dot com
2010-10-26 19:11 ` rguenth at gcc dot gnu.org
2010-10-27  1:57 ` jakub at gcc dot gnu.org
2010-12-06 22:47 ` spop at gcc dot gnu.org
2010-12-07  1:29 ` hjl at gcc dot gnu.org
2010-12-07  4:31 ` spop at gcc dot gnu.org

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