[Bug tree-optimization/67909] [6 Regression] 416.gamess in SPEC CPU 2006 is miscompiled

[ienkovich at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67909

Ilya Enkovich  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #7 from Ilya Enkovich  ---
(In reply to Pat Haugen from comment #6)
> 416.gamess now passes on powerpc64 as well.

Fixed then

[Bug tree-optimization/67909] [6 Regression] 416.gamess in SPEC CPU 2006 is miscompiled

[ysrumyan at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67909

--- Comment #4 from Yuri Rumyantsev  ---
Created attachment 36498
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36498=edit
proposed patch

This patch cures run-time error for 416.gamess.

[Bug tree-optimization/67909] [6 Regression] 416.gamess in SPEC CPU 2006 is miscompiled

[ysrumyan at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67909

--- Comment #3 from Yuri Rumyantsev  ---
Check that guard edge is around the inner loop was missed. After adding it
416.gamess run successfully.
I sent the fix for review.

[Bug tree-optimization/67909] [6 Regression] 416.gamess in SPEC CPU 2006 is miscompiled

[ienkovich at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67909

--- Comment #5 from Ilya Enkovich  ---
Author: ienkovich
Date: Tue Oct 13 13:08:31 2015
New Revision: 228760

URL: https://gcc.gnu.org/viewcvs?rev=228760=gcc=rev
Log:
gcc/

2014-10-13  Yuri Rumyantsev  

PR tree-optimization/67909, 67947
* tree-ssa-loop-unswitch.c (find_loop_guard): Add check that GUARD_EDGE
really skip the inner loop.

gcc/testsuite/

2014-10-13  Yuri Rumyantsev  

PR tree-optimization/67909, 67947
* gcc.dg/torture/pr67947.c: New test.

Added:
trunk/gcc/testsuite/gcc.dg/torture/pr67947.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-loop-unswitch.c

[Bug tree-optimization/67909] [6 Regression] 416.gamess in SPEC CPU 2006 is miscompiled

[pthaugen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67909

--- Comment #6 from Pat Haugen  ---
416.gamess now passes on powerpc64 as well.

[Bug tree-optimization/67909] [6 Regression] 416.gamess in SPEC CPU 2006 is miscompiled

[pthaugen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67909

Pat Haugen  changed:

   What|Removed |Added

 CC||pthaugen at gcc dot gnu.org

--- Comment #2 from Pat Haugen  ---
(In reply to H.J. Lu from comment #1)
> It was caused by r228599.

I am also seeing a failure on gamess on powerpc64 starting with that revision.
In my case it's a verification error (miscompare of the output).