2012-08-13  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/54200
	* tree-ssa-copyrename.c (rename_ssa_copies): Do not add
	PHI results to another partition if not all PHI arguments
	have the same partition.

	* gcc.dg/guality/pr54200.c: New testcase.
	* gcc.dg/tree-ssa/slsr-8.c: Adjust.

From-SVN: r190339