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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: 3 Jun 2006 23:49:00 -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 #8 from steven at gcc dot gnu dot org 2006-06-03 23:49 -------
You could add a basic block list scheduler at the tree level just before
out-of-ssa, with heuristics to make life times as short as possible :-)
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855