tree-ssa-structalias.c (find_func_aliases): In IPA mode handle calls to externally...

tree-ssa-structalias.c (find_func_aliases): In IPA mode handle calls to externally visible functions like in regular mode.

2009-10-27  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-structalias.c (find_func_aliases): In IPA mode
	handle calls to externally visible functions like in regular mode.
	(create_variable_info_for): Do not create function infos here.
	(have_alias_info): Remove write-only variable.
	(solve_constraints): New function split out from common code
	in compute_points_to_sets and ipa_pta_execute.
	(compute_points_to_sets): Adjust.
	(ipa_pta_execute): Likewise.  Handle clones and externally visible
	functions like in non-IPA mode.

	* gcc.dg/torture/ipa-pta-1.c: Adjust testcase.

From-SVN: r153600