This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/32921] [4.3 Regression] Revision 126326 causes 12% slowdown
- From: "hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Oct 2007 16:05:40 -0000
- Subject: [Bug tree-optimization/32921] [4.3 Regression] Revision 126326 causes 12% slowdown
- References: <bug-32921-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #26 from hjl at lucon dot org 2007-10-20 16:05 -------
(In reply to comment #25)
> HJ, does applying the patch from comment #6 bring back performance to 4.1 RH
> level?
>
It makes no difference. I saw 20% slowdown in 437.leslie3d on Intel Core
2 Duo 64bit between revision 117890 and revision 119497. It could be
PR 30735.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32921