r218515 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Tue Dec  9 14:25:09 2014
New Revision: 218515

URL: https://gcc.gnu.org/viewcvs?rev=218515&root=gcc&view=rev
Log:
2014-12-09  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/64193
	* tree-ssa-alias.c (walk_non_aliased_vuses): Add valueize parameter
	and valueize the VUSE before looking up the def stmt.
	* tree-ssa-alias.h (walk_non_aliased_vuses): Adjust prototype.
	* tree-ssa-sccvn.c (vn_reference_lookup_pieces): Pass vn_valueize
	to walk_non_aliased_vuses.
	(vn_reference_lookup): Likewise.
	* tree-ssa-dom.c (lookup_avail_expr): Pass NULL as valueize
	callback to walk_non_aliased_vuses.

	* gcc.dg/tree-ssa/ssa-fre-43.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-43.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-alias.c
    trunk/gcc/tree-ssa-alias.h
    trunk/gcc/tree-ssa-dom.c
    trunk/gcc/tree-ssa-sccvn.c