r255136 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Fri Nov 24 09:40:40 2017
New Revision: 255136

URL: https://gcc.gnu.org/viewcvs?rev=255136&root=gcc&view=rev
Log:
2017-11-24  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/83128
	* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Handle STRING_CSTs.
	(vn_reference_lookup_3): Likewise.

	* gcc.dg/tree-ssa/ssa-fre-62.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-62.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c