re PR middle-end/49373 (Many testcase failures)

re PR middle-end/49373 (Many testcase failures)

	PR tree-optimize/49373
	* tree-pass.h (all_late_ipa_passes): Declare.
	* cgraphunit.c (init_lowered_empty_function): Fix properties.
	(cgraph_optimize): Execute late passes; remove unreachable funcions after
	materialization.
	* ipa-inline.c (gate_ipa_inline): Enable only when optimizing or LTOing.
	* passes.c (all_late_ipa_passes): Declare.
	(dump_passes, register_pass): Handle late ipa passes.
	(init_optimization_passes): Move ipa_pta to late passes; schedule fixup_cfg
	at beggining of all_passes.
	(apply_ipa_transforms): New function.
	(execute_one_pass): When doing simple ipa pass, apply all transforms.

From-SVN: r175336