PR tree-optimization/57149
	* tree-ssa-uninit.c (uninit_undefined_value_p): New inline.
	(can_skip_redundant_opnd, compute_uninit_opnds_pos,
	collect_phi_def_edges, execute_late_warn_uninitialized): Use
	uninit_undefined_value_p instead of ssa_undefined_value_p.

	* gcc.dg/pr57149.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198671 138bc75d-0d04-0410-961f-82ee72b054a4