https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84190
--- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Fri Feb 16 07:56:16 2018 New Revision: 257721 URL: https://gcc.gnu.org/viewcvs?rev=257721&root=gcc&view=rev Log: 2018-02-16 Richard Biener <rguent...@suse.de> PR tree-optimization/84190 * tree-ssa.c (non_rewritable_mem_ref_base): Do not touch volatile accesses if the decl isn't volatile. * g++.dg/torture/pr84190.C: New testcase. Added: trunk/gcc/testsuite/g++.dg/torture/pr84190.C Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa.c
