ipa-reference.c (is_proper_for_analysis): Do not check flags that might change as...

ipa-reference.c (is_proper_for_analysis): Do not check flags that might change as result of global optimization.

	* ipa-reference.c (is_proper_for_analysis): Do not check flags
	that might change as result of global optimization.
	(analyze_function): Do not check analyzed and externally_visible
	flags; be happy about address dereferences.
	(propagate): Prune all_module_statics so it really contains just
	statics; prune all the local summaries.
	(ipa_reference_write_optimization_summary): Simplify.

From-SVN: r187626