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From: "uros at kss-loka dot si" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/27855] reassociation pass produces ~30% slower matrix multiplication code
Date: Fri, 02 Jun 2006 10:04:00 -0000 [thread overview]
Message-ID: <20060602100438.10233.qmail@sourceware.org> (raw)
In-Reply-To: <bug-27855-1649@http.gcc.gnu.org/bugzilla/>
------- Comment #2 from uros at kss-loka dot si 2006-06-02 10:04 -------
(In reply to comment #1)
> There is nothing special about reassociation at all. In fact what you are
> seeing is register allocator going funky. This what you get with x87.
This is also what you get with SSE.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855
next prev parent reply other threads:[~2006-06-02 10:04 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-01 11:34 [Bug tree-optimization/27855] New: " uros at kss-loka dot si
2006-06-01 15:26 ` [Bug target/27855] " pinskia at gcc dot gnu dot org
2006-06-02 10:04 ` uros at kss-loka dot si [this message]
2006-06-02 10:19 ` pinskia at gcc dot gnu dot org
2006-06-02 23:20 ` steven at gcc dot gnu dot org
2006-06-03 2:11 ` Daniel Berlin
2006-06-03 2:11 ` dberlin at dberlin dot org
2006-06-03 2:38 ` pinskia at gcc dot gnu dot org
2006-06-03 2:50 ` pinskia at gcc dot gnu dot org
2006-06-03 23:49 ` steven at gcc dot gnu dot org
2006-06-05 15:57 ` amacleod at redhat dot com
2006-06-05 16:03 ` dberlin at gcc dot gnu dot org
2006-10-07 10:05 ` steven at gcc dot gnu dot org
2006-10-07 16:36 ` pinskia at gcc dot gnu dot org
2007-03-02 15:35 ` ubizjak at gmail dot com
2007-03-02 17:43 ` pinskia at gcc dot gnu dot org
2007-07-09 18:17 ` ubizjak at gmail dot com
2007-07-09 19:22 ` uros at gcc dot gnu dot org
2007-12-10 10:17 ` [Bug target/27855] [4.3 regression] " ubizjak at gmail dot com
2007-12-10 10:40 ` rguenth at gcc dot gnu dot org
2007-12-10 11:14 ` ubizjak at gmail dot com
2007-12-11 5:57 ` ubizjak at gmail dot com
2007-12-26 1:37 ` [Bug target/27855] [4.3 regression] reassociation causes the RA to be confused pinskia at gcc dot gnu dot org
2008-03-14 16:43 ` [Bug target/27855] [4.3/4.4 " rguenth at gcc dot gnu dot org
2008-06-06 14:58 ` rguenth at gcc dot gnu dot org
2008-08-27 22:03 ` jsm28 at gcc dot gnu dot org
2008-11-13 13:37 ` jakub at gcc dot gnu dot org
2008-11-13 14:54 ` ubizjak at gmail dot com
2008-11-13 14:59 ` ubizjak at gmail dot com
2009-01-24 10:20 ` rguenth at gcc dot gnu dot org
2009-02-04 7:47 ` bonzini at gnu dot org
2009-02-04 8:58 ` ubizjak at gmail dot com
2009-02-04 11:23 ` bonzini at gnu dot org
2009-04-16 22:26 ` [Bug target/27855] [4.3/4.4/4.5 " pinskia at gcc dot gnu dot org
2009-08-04 12:34 ` rguenth at gcc dot gnu dot org
2009-09-20 20:20 ` pinskia at gcc dot gnu dot org
2010-01-19 16:17 ` rguenth at gcc dot gnu dot org
2010-05-22 19:00 ` [Bug target/27855] [4.3/4.4/4.5/4.6 " rguenth at gcc dot gnu dot org
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