2011-01-25  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/47426
	* tree-ssa-structalias.c (ipa_pta_execute): Make externally
	visible functions results escape.

	* gcc.dg/torture/pr47426-1.c: New testcase.
	* gcc.dg/torture/pr47426-2.c: Likewise.

From-SVN: r169241