ipa-inline-analysis.c (redirect_to_unreachable): Be prepared for edge to change by speculation resolution or redirection.


	* ipa-inline-analysis.c (redirect_to_unreachable): Be prepared for
	edge to change by speculation resolution or redirection.
	(edge_set_predicate): Likewise.
	(inline_summary_t::duplicate): Likewise.
	(remap_edge_summaries): Likewise.
	* gcc.c-torture/compile/20150327.c: New testcase.

From-SVN: r221718