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From: "dominiq at lps dot ens.fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/53346] [4.6/4.7/4.8 Regression] Bad vectorization in the proc cptrf2 of rnflow.f90
Date: Sat, 19 May 2012 23:50:00 -0000	[thread overview]
Message-ID: <bug-53346-4-ToTkHphIKp@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-53346-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53346

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |matz at gcc dot gnu.org

--- Comment #19 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-05-19 22:19:02 UTC ---
The change in timing occured at revision 163998

Author:    matz
Date:    Wed Sep 8 12:34:52 2010 UTC (20 months, 1 week ago)
Changed paths:    4
Log Message:    
    PR tree-optimization/33244
    * tree-ssa-sink.c (statement_sink_location): Don't sink into
    empty loop latches.

testsuite/
    PR tree-optimization/33244
    * gfortran.dg/vect/fast-math-vect-8.f90: New test.

[macbook] test/dbg_rnflow% /opt/gcc/gcc4.6p-163997/bin/gfortran -c -O3
cptrf2.f90
[macbook] test/dbg_rnflow% makeo ; time a.out > /dev/null
20.881u 0.345s 0:21.37 99.2%    0+0k 3+0io 0pf+0w
[macbook] test/dbg_rnflow% /opt/gcc/gcc4.6p-163998/bin/gfortran -c -O3
cptrf2.f90
[macbook] test/dbg_rnflow% makeo ; time a.out > /dev/null
28.545u 0.351s 0:29.06 99.4%    0+0k 3+0io 0pf+0w


  parent reply	other threads:[~2012-05-19 22:20 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-14 15:44 [Bug tree-optimization/53346] New: " dominiq at lps dot ens.fr
2012-05-15  9:54 ` [Bug tree-optimization/53346] " rguenth at gcc dot gnu.org
2012-05-15 12:55 ` dominiq at lps dot ens.fr
2012-05-17 18:35 ` ubizjak at gmail dot com
2012-05-17 20:47 ` ubizjak at gmail dot com
2012-05-18 11:49 ` rguenth at gcc dot gnu.org
2012-05-18 14:28 ` rguenth at gcc dot gnu.org
2012-05-18 14:32 ` rguenth at gcc dot gnu.org
2012-05-18 14:49 ` ubizjak at gmail dot com
2012-05-18 14:52 ` dominiq at lps dot ens.fr
2012-05-18 15:13 ` ubizjak at gmail dot com
2012-05-18 17:32 ` ubizjak at gmail dot com
2012-05-18 17:34 ` ubizjak at gmail dot com
2012-05-18 17:46 ` ubizjak at gmail dot com
2012-05-18 17:48 ` ubizjak at gmail dot com
2012-05-18 17:56 ` pinskia at gcc dot gnu.org
2012-05-18 18:27 ` hjl.tools at gmail dot com
2012-05-18 18:27 ` ubizjak at gmail dot com
2012-05-18 19:45 ` dominiq at lps dot ens.fr
2012-05-19 23:50 ` dominiq at lps dot ens.fr [this message]
2012-09-07 11:59 ` [Bug target/53346] " rguenth at gcc dot gnu.org
2012-11-14 22:19 ` hubicka at gcc dot gnu.org
2012-11-14 22:38 ` hubicka at gcc dot gnu.org
2012-12-31  9:20 ` [Bug target/53346] [4.6/4.7/4.8 Regression] Bad if conversion in " pinskia at gcc dot gnu.org
2012-12-31  9:41 ` pinskia at gcc dot gnu.org
2022-09-26  3:22 ` cvs-commit at gcc dot gnu.org
2022-09-26  3:24 ` crazylht at gmail dot com

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