2015-02-10  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/64995
	* tree-ssa-sccvn.c (set_ssa_val_to): Assert that the
	value we use is final.
	(visit_reference_op_store): Always valueize op.
	(visit_use): Properly valueize vuses.

	* g++.dg/torture/pr64995.C: New testcase.

From-SVN: r220581