2016-11-02  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/78035
	PR tree-optimization/77964
	* gimple-pretty-print.c (pp_points_to_solution): Print
	vars_contains_interposable.
	* tree-ssa-alias.c: Include varasm.h.
	(ptrs_compare_unequal): Check vars_contains_interposable and
	decl_binds_to_current_def_p.
	(dump_points_to_solution): Dump vars_contains_interposable.
	* tree-ssa-alias.h (struct pt_solution): Add vars_contains_interposable
	flag.
	* tree-ssa-structalias.c: Include varasm.h.
	(set_uids_in_ptset): Record whether vars contains a
	not decl_binds_to_current_def_p variable in vars_contains_interposable.
	(ipa_escaped_pt): Update initializer.

	* gcc.target/i386/pr78035.c: New testcase.

From-SVN: r241776