ipa-inline-analysis.c (edge_set_predicate): Reset size/time when target is UNREACHABLE.

ipa-inline-analysis.c (edge_set_predicate): Reset size/time when target is UNREACHABLE.

	* ipa-inline-analysis.c (edge_set_predicate): Reset size/time when
	target is UNREACHABLE.
	(evaluate_properties_for_edge): If call statemet is available, use it
	to determine compile time constants.
	(estimate_function_body_sizes): Enable predicates for early inliner.
	(estimate_calls_size_and_time): Speedup.
	(inline_merge_summary): Evaluate properties for early inliner, too.

From-SVN: r219108