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From: "hjl at lucon dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/32183] [4.3 Regression] reassoc2 can more extra calculations into a loop
Date: Thu, 07 Jun 2007 03:16:00 -0000 [thread overview]
Message-ID: <20070607031631.17691.qmail@sourceware.org> (raw)
In-Reply-To: <bug-32183-682@http.gcc.gnu.org/bugzilla/>
------- Comment #30 from hjl at lucon dot org 2007-06-07 03:16 -------
(In reply to comment #26)
> Created an attachment (id=13656)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13656&action=view) [edit]
> patch preventing reassociation across loop boundaries
>
Here are SPEC CPU 2K -O2 -ffast-math differences between revision
125281 plus this patch and revision 125027 on Intel64 C2D:
(r125281 plus this patch - r125027)/r125027
400.perlbench 0.492611%
401.bzip2 0.613497%
403.gcc 0%
429.mcf -0.666667%
445.gobmk 0%
456.hmmer 0%
458.sjeng 0%
462.libquantum -1.0582%
464.h264ref -0.393701%
471.omnetpp 0%
473.astar 0.869565%
483.xalancbmk 0.528541%
Est. SPECint(R)_base2006 0%
410.bwaves 2.7027%
416.gamess -2.27273%
433.milc 0%
434.zeusmp 0%
435.gromacs 0.433369%
436.cactusADM -1.88679%
437.leslie3d 0%
444.namd 0%
447.dealII -2.33463%
450.soplex 0%
453.povray -0.492611%
454.calculix 1.98151%
459.GemsFDTD 0.961538%
465.tonto 1.40845%
470.lbm 0.70922%
481.wrf 9.07238%
482.sphinx3 0%
Est. SPECfp(R)_base2006 0.757576%
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32183
next prev parent reply other threads:[~2007-06-07 3:16 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-01 21:35 [Bug tree-optimization/32183] New: Gcc 4.3 revision 125030 miscompiles 482.sphinx3 in SPEC CPU 2006 hjl at lucon dot org
2007-06-01 22:13 ` [Bug tree-optimization/32183] " hjl at lucon dot org
2007-06-01 23:09 ` hjl at lucon dot org
2007-06-01 23:13 ` rakdver at gcc dot gnu dot org
2007-06-02 0:01 ` [Bug tree-optimization/32183] -fast-math causes a missed optimization to happen pinskia at gcc dot gnu dot org
2007-06-02 0:11 ` hjl at lucon dot org
2007-06-02 0:21 ` [Bug tree-optimization/32183] reassoc can more extra calculations into a loop pinskia at gcc dot gnu dot org
2007-06-02 0:24 ` pinskia at gcc dot gnu dot org
2007-06-02 0:26 ` pinskia at gcc dot gnu dot org
2007-06-02 0:38 ` [Bug tree-optimization/32183] [4.3 Regression] reassoc2 " pinskia at gcc dot gnu dot org
2007-06-02 0:43 ` hjl at lucon dot org
2007-06-02 0:46 ` pinskia at gcc dot gnu dot org
2007-06-02 0:56 ` pinskia at gcc dot gnu dot org
2007-06-02 0:59 ` pinskia at gcc dot gnu dot org
2007-06-02 2:00 ` hjl at lucon dot org
2007-06-02 2:24 ` pinskia at gcc dot gnu dot org
2007-06-02 7:49 ` rakdver at kam dot mff dot cuni dot cz
2007-06-02 14:20 ` hjl at lucon dot org
2007-06-03 22:41 ` hjl at lucon dot org
2007-06-04 21:14 ` hjl at lucon dot org
2007-06-04 21:39 ` hjl at lucon dot org
2007-06-04 22:15 ` rakdver at kam dot mff dot cuni dot cz
2007-06-04 22:19 ` hjl at lucon dot org
2007-06-04 22:39 ` rakdver at kam dot mff dot cuni dot cz
2007-06-04 22:45 ` rakdver at gcc dot gnu dot org
2007-06-04 23:01 ` dberlin at dberlin dot org
2007-06-04 23:23 ` rakdver at kam dot mff dot cuni dot cz
2007-06-04 23:34 ` rakdver at gcc dot gnu dot org
2007-06-04 23:35 ` rakdver at gcc dot gnu dot org
2007-06-05 0:12 ` dberlin at dberlin dot org
2007-06-05 0:15 ` hjl at lucon dot org
2007-06-05 16:45 ` hjl at lucon dot org
2007-06-07 3:16 ` hjl at lucon dot org [this message]
2007-06-29 18:38 ` mmitchel at gcc dot gnu dot org
2007-09-08 6:47 ` hjl at gcc dot gnu dot org
2007-10-10 4:08 ` hjl at lucon dot org
2007-10-10 8:58 ` steven at gcc dot gnu dot org
2007-10-10 17:43 ` Daniel Berlin
2007-10-10 17:44 ` dberlin at dberlin dot org
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