https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37242
--- Comment #28 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Tue Aug 20 12:02:56 2019 New Revision: 274746 URL: https://gcc.gnu.org/viewcvs?rev=274746&root=gcc&view=rev Log: 2019-08-20 Richard Biener <rguent...@suse.de> PR tree-optimization/37242 * tree-ssa-sccvn.c (visit_nary_op): Also CSE (T)(a + b) to (T)a + (T)b if we know that a + b does not overflow. * gcc.dg/tree-ssa/ssa-fre-80.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-80.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-sccvn.c
