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[Bug target/27855] reassociation pass produces ~30% slower matrix multiplication code
- From: "amacleod at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 5 Jun 2006 15:46:11 -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 #9 from amacleod at redhat dot com 2006-06-05 15:46 -------
This thread is moving dangerously close to work in progress.. :-)
I'll have something more definitive to say about it in a few weeks, but I'm
looking at doing significant register pressure reduction at out of ssa time as
a component of a larger hunk of work.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855