------- Additional Comments From rakdver at atrey dot karlin dot mff dot cuni dot cz 2004-10-22 21:16 ------- Subject: Re: [4.0 Regression] mgrid loop performance regression with ivopts
> Daniel's DOM loop depth patch might help with this problem as well. > http://gcc.gnu.org/ml/gcc-patches/2004-10/msg00931.html Probably not (although large part of the regression is indeed caused by ivopts -- dom interaction, it seems to be of quite different type). I am just testing a patch that significantly decreases the regression (unfortunately, some 10% remain even with the patch; hopefully I will find reason for them soon). Zdenek -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18048
