2014-07-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/61757
	PR tree-optimization/61783
	PR tree-optimization/61787
	* tree-ssa-dom.c (record_equality): Revert canonicalization
	change and add comment.
	(propagate_rhs_into_lhs): Revert previous fix, removing
	loop depth restriction again.

	* gcc.dg/torture/pr61757.c: New testcase.
	* gcc.dg/torture/pr61787.c: Likewise.

From-SVN: r212513