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[Bug tree-optimization/50031] Sphinx3 has a 10% regression going from GCC 4.5 to GCC 4.6 on powerpc
- From: "wschmidt at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 02 Mar 2012 15:02:23 +0000
- Subject: [Bug tree-optimization/50031] Sphinx3 has a 10% regression going from GCC 4.5 to GCC 4.6 on powerpc
- Auto-submitted: auto-generated
- References: <bug-50031-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50031
William J. Schmidt <wschmidt at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
--- Comment #8 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2012-03-02 15:02:23 UTC ---
I'm going to mark this fixed at this point, but there are still a couple of
future work items arising from the original issue that should be considered:
1) Loop versioning for alignment.
2) Better cost modeling (on powerpc64, at least) for pipeline limitations on
vector permute and certain other instructions.