https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55152
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Thu Sep 29 12:27:19 2016 New Revision: 240615 URL: https://gcc.gnu.org/viewcvs?rev=240615&root=gcc&view=rev Log: 2016-09-29 Richard Biener <rguent...@suse.de> PR middle-end/55152 * match.pd: Add max(a,-a) -> abs(a) pattern. * tree-ssa-phiopt.c (minmax_replacement): Disable for HONOR_SIGNED_ZEROS types. * gcc.dg/pr55152.c: New testcase. * gcc.dg/tree-ssa/phi-opt-5.c: Adjust. Added: trunk/gcc/testsuite/gcc.dg/pr55152.c Modified: trunk/gcc/ChangeLog trunk/gcc/match.pd trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-5.c trunk/gcc/tree-ssa-phiopt.c