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[Bug target/27855] [4.3 regression] reassociation pass produces ~30% slower matrix multiplication code
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Dec 2007 10:16:55 -0000
- Subject: [Bug target/27855] [4.3 regression] 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 #17 from ubizjak at gmail dot com 2007-12-10 10:16 -------
4.3 regression according to Issue 2 at
http://gcc.gnu.org/ml/gcc/2007-11/msg00753.html.
--
ubizjak at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|reassociation pass produces |[4.3 regression]
|~30% slower matrix |reassociation pass produces
|multiplication code |~30% slower matrix
| |multiplication code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855