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[Bug target/27855] reassociation pass produces ~30% slower matrix multiplication code
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Oct 2006 10:05:46 -0000
- Subject: [Bug target/27855] reassociation pass produces ~30% slower matrix multiplication code
- References: <bug-27855-1649@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #11 from steven at gcc dot gnu dot org 2006-10-07 10:05 -------
Would anyone object if I'd propose to disable reassociation for floating point
thingies on x86 for GCC 4.2? We can re-enable it if/when amacleod's new
out-of-ssa stuff fixes this for real...
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855