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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/27855] [4.3 regression] reassociation pass produces ~30% slower matrix multiplication code
Date: Mon, 10 Dec 2007 11:14:00 -0000 [thread overview]
Message-ID: <20071210111437.29169.qmail@sourceware.org> (raw)
In-Reply-To: <bug-27855-1649@http.gcc.gnu.org/bugzilla/>
------- Comment #19 from ubizjak at gmail dot com 2007-12-10 11:14 -------
I have tried with mmbenchs.tar.gz [1] from PR 27827:
TYPE=double:
gcc -DREPS=1000 -msse3 -O2 -mfpmath=sse -ffast-math -fno-tree-reassoc:
atlasmm 60 1000 0.188 2297.73
gcc -DREPS=1000 -msse3 -O2 -mfpmath=sse -ffast-math
atlasmm 60 1000 0.284 1521.04
TYPE=float:
gcc -DREPS=1000 -msse3 -O2 -mfpmath=sse -ffast-math -fno-tree-reassoc
atlasmm 60 1000 0.168 2571.28
gcc -DREPS=1000 -msse3 -O2 -mfpmath=sse -ffast-math
atlasmm 60 1000 0.304 1420.96
gcc version 4.3.0 20071210 (experimental) [trunk revision 130738] (GCC)
Family: 15 Model: 4 Stepping: 10 Type: 0 Brand: 0
CPU Model: Pentium 4 D (Foster) Original OEM
Processor name string: Intel(R) Xeon(TM) CPU 3.60GHz
Please note that CPU runs in 32bit mode.
[1] http://gcc.gnu.org/bugzilla/attachment.cgi?id=12020
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855
next prev parent reply other threads:[~2007-12-10 11:14 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
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 [this message]
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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