2014-05-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/61034
	* tree-ssa-alias.c (call_may_clobber_ref_p_1): Export.
	(maybe_skip_until): Use translate to take into account
	lattices when trying to do disambiguations.
	(get_continuation_for_phi_1): Likewise.
	(get_continuation_for_phi): Adjust for added translate
	arguments.
	(walk_non_aliased_vuses): Likewise.
	* tree-ssa-alias.h (get_continuation_for_phi): Adjust
	prototype.
	(walk_non_aliased_vuses): Likewise.
	(call_may_clobber_ref_p_1): Declare.
	* tree-ssa-sccvn.c (vn_reference_lookup_3): Also
	disambiguate against calls.  Stop early if we are
	only supposed to disambiguate.
	* tree-ssa-pre.c (translate_vuse_through_block): Adjust.

	* g++.dg/tree-ssa/pr61034.C: New testcase.

From-SVN: r210160