* tree-ssa-operands.c (create_vop_var): Set DECL_IGNORED_P.
	(append_use): Run at -O0.
	(append_vdef): Likewise.
	* tree-ssa-ter.c (ter_is_replaceable_p): Do not special-case -O0.
	* tree-ssa-uninit.c (warn_uninitialized_vars): Remove obsolete comment.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@209443 138bc75d-0d04-0410-961f-82ee72b054a4