------- Comment #14 from hjl dot tools at gmail dot com 2008-09-09 16:01
-------
I re-enabled the regmove pass on ira-merge branch at revision 140065
and ran SPEC CPU 2K/2006 with -O2 -msse2 -mfpmath=sse -ffast-math for
both 32bit and 64bit on Intel Core 2. Here are the performance impacts
of the regmove pass:
32bit:
164.gzip -0.597213%
175.vpr 0.42898%
176.gcc 2.66576%
181.mcf -0.913938%
186.crafty -0.514019%
197.parser 0.185644%
252.eon 1.10181%
253.perlbmk -2.17957%
254.gap -0.993521%
255.vortex 0.209644%
256.bzip2 -0.294551%
300.twolf 0.131363%
SPECint_base2000 -0.0744109%
168.wupwise 0.45045%
171.swim 0.653595%
172.mgrid 4.23729%
173.applu 1.31265%
177.mesa -2.31596%
178.galgel -0.410633%
179.art 0.504994%
183.equake -0.744153%
187.facerec 4.28781%
188.ammp 1.28707%
189.lucas 13.7548%
191.fma3d -0.53528%
200.sixtrack 1.49551%
301.apsi 0.27088%
SPECfp_base2000 1.66845%
400.perlbench 1.52284%
401.bzip2 -1.36986%
403.gcc 0.497512%
429.mcf 0%
445.gobmk -1.08696%
456.hmmer 0%
458.sjeng 0%
462.libquantum -0.490196%
464.h264ref -20.1581%
471.omnetpp 0.689655%
473.astar 0.826446%
483.xalancbmk 0%
SPECint(R)_base2006 -2.1978%
410.bwaves 0%
416.gamess 1.37931%
433.milc 0%
434.zeusmp -3.0303%
435.gromacs -6.19469%
436.cactusADM -8.57143%
437.leslie3d 0%
444.namd 1.5625%
447.dealII -0.446429%
450.soplex 0%
453.povray 1.26582%
454.calculix 1.59884%
459.GemsFDTD 1.76991%
465.tonto -0.793651%
470.lbm -5.64103%
481.wrf 0.917431%
482.sphinx3 4.69484%
SPECfp(R)_base2006 -1.41844%
64bit:
164.gzip -0.124611%
175.vpr -0.145208%
176.gcc 0.172831%
181.mcf 0.143833%
186.crafty -0.934579%
197.parser 0.122549%
252.eon -0.465839%
253.perlbmk 0.565348%
254.gap -0.158983%
255.vortex 0.0648298%
256.bzip2 0.0863931%
300.twolf 0.346566%
SPECint_base2000 -0.0274812%
68.wupwise 1.79766%
171.swim 0.389105%
172.mgrid -1.01574%
173.applu 4.83871%
177.mesa -0.634026%
178.galgel 0.239704%
179.art 0.71311%
183.equake 1.14286%
187.facerec 2.05011%
188.ammp -1.99076%
189.lucas 2.137%
191.fma3d -0.20816%
200.sixtrack 0.303951%
301.apsi 0.0847099%
SPECfp_base2000 0.690346%
400.perlbench -0.440529%
401.bzip2 -0.564972%
403.gcc -0.5%
429.mcf -0.510204%
445.gobmk -1.05263%
456.hmmer 2.7027%
458.sjeng 1.5544%
462.libquantum 0.45045%
464.h264ref 0.374532%
471.omnetpp -0.70922%
473.astar 0%
483.xalancbmk 0.507614%
SPECint(R)_base2006 0%
410.bwaves 0%
416.gamess -0.568182%
433.milc 1.45985%
434.zeusmp 0%
435.gromacs 3.22581%
436.cactusADM -6.66667%
437.leslie3d 0%
444.namd 0%
447.dealII 1.13636%
450.soplex 0.546448%
453.povray -0.900901%
454.calculix 1.98598%
459.GemsFDTD 2.27273%
465.tonto 0%
470.lbm -2.06186%
481.wrf 0.8%
482.sphinx3 0.881057%
SPECfp(R)_base2006 0%
At -O2, the impact of the regmove pass is mixed. However,
for -mtune=core2 is used, the results could be different.
See PR 37437.
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
OtherBugsDependingO| |37437
nThis| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37364
