------- Comment #9 from rguenth at gcc dot gnu dot org 2009-03-31 14:28 ------- Subject: Bug 31029
Author: rguenth Date: Tue Mar 31 14:28:16 2009 New Revision: 145345 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=145345 Log: 2009-03-31 Richard Guenther <rguent...@suse.de> PR middle-end/31029 * fold-const.c (fold_binary): Fold X +- Y CMP X to Y CMP 0 for equality comparisons. Fold C - X CMP X if C % 2 == 1. * gcc.dg/fold-compare-4.c: New testcase. * gcc.dg/fold-compare-5.c: Likewise. Added: trunk/gcc/testsuite/gcc.dg/fold-compare-4.c trunk/gcc/testsuite/gcc.dg/fold-compare-5.c Modified: trunk/gcc/ChangeLog trunk/gcc/fold-const.c trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31029