2014-01-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/64568
	* tree-ssa-forwprop.c (pass_forwprop::execute): Properly
	release defs of removed stmts, avoid splitting TARGET_MEM_REFs.

	* g++.dg/torture/pr64568.C: New testcase.

From-SVN: r219520