r257721 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.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  <rguenther@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