ipa-cp.c (ipcp_cloning_candidate_p): Use opt_for_fn.

	* ipa-cp.c (ipcp_cloning_candidate_p): Use opt_for_fn.
	(ipa_value_from_jfunc, ipa_context_from_jfunc): Skip sanity check.
	(ipa_get_indirect_edge_target_1): Use opt_for_fn.
	(good_cloning_opportunity_p): Likewise.
	(ipa-cp gate): Enable ipa-cp with LTO.
	* ipa-profile.c (ipa_propagate_frequency): Use opt_for_fn.
	* ipa.c (symbol_table::remove_unreachable_nodes): Always build type
	inheritance.
	* ipa-inline-transform.c (inline_transform): Check if there are inlines
	to apply even at -O0.
	* cgraphunit.c (cgraph_node::finalize_function): Use opt_for_fn.
	(analyze_functions): Build type inheritance graph.
	* ipa-inline.c (can_inline_edge_p): Use opt_for_fn.
	(want_early_inline_function_p, want_inline_small_function_p):
	Likewise.
	(check_callers): Likewise.
	(edge_badness): Likewise.
	(inline_small_functions): Always be ready for indirect inlining
	to happend.
	(ipa_inline): Always use want_inline_function_to_all_callers_p.
	(early_inline_small_functions): Use opt_for_fn.
	* ipa-inline-analysis.c (estimate_function_body_sizes): use opt_for_fn.
	(estimate_function_body_sizes): Likewise.
	(compute_inline_parameters): Likewise.
	(estimate_edge_devirt_benefit): Likewise.
	(inline_analyze_function): Likewise.
	* ipa-devirt.c (ipa_devirt): Likewise.
	(gate): Use in_lto_p.
	* ipa-prop.c (ipa_func_spec_opts_forbid_analysis_p): Use opt_for_fn.
	(try_make_edge_direct_virtual_call): Likewise.
	(update_indirect_edges_after_inlining): Likewise.
	(ipa_free_all_structures_after_ipa_cp): Add in_lto_p check.
	* common.opt (findirect-inlining): Turn into optimization.
	* ipa-pure-const.c (add_new_function): Use opt_for_fn.
	(pure_const_generate_summary): Likewise.
	(gate_pure_const): Always enable with in_lto_p.

From-SVN: r217737