* cgraph.c (cgraph_add_new_function): Do early local passes.
	* tree-nrv.c (gate_pass_return_slot): New gate.
	(pass_nrv): Add the gate.
	* tree-ssa-coalese.c (hash_ssa_name_by_var, eq_ssa_name_by_var): New
	functions.
	(coalesce_ssa_name): Coalesce SSA names.
	* tree-ssa-live.c (remove_unused_locals): Be more conservative when
	not optimizing so unused user vars remains visible.
	* common.opt (flag_tree_ter): Always enable by default.
	* tree-ssa-ter.c: Include flags.h
	(is_replaceable_p): Check that locations match; when aliasing is missing
	be conservative about loads.
	* tree-optimize.c (gate_init_datastructures): Remove.
	(pass_init_datastructures): New.
	* passes.c: Reorder passes so we always go into SSA.

From-SVN: r138010