https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55936
--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Thu Mar 3 09:12:53 2016 New Revision: 233928 URL: https://gcc.gnu.org/viewcvs?rev=233928&root=gcc&view=rev Log: 2016-03-03 Richard Biener <rguent...@suse.de> PR tree-optimization/55936 * tree-vrp.c (compare_name_with_value): Add use_equiv_p parameter and guard unsafe equivalence use. (vrp_evaluate_conditional_warnv_with_ops): Always use safe equivalences but not via the quadratic compare_names helper. * gcc.dg/tree-ssa/vrp06.c: Remove XFAIL. Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.dg/tree-ssa/vrp06.c trunk/gcc/tree-vrp.c