[PR 89330] Remove non-useful speculations from new_edges

[PR 89330] Remove non-useful speculations from new_edges

2019-07-26  Martin Jambor  <mjambor@suse.cz>

	PR ipa/89330
	* ipa-inline-transform.c (check_speculations_1): New function.
	(push_all_edges_in_set_to_vec): Likewise.
	(check_speculations): Use check_speculations_1, new parameter
	new_edges.
	(inline_call): Pass new_edges to check_speculations.
	* ipa-inline.c (add_new_edges_to_heap): Assert edge_callee is not
	NULL.
	(speculation_useful_p): Early return true if edge is inlined, remove
	later checks for inline_failed.

	testsuite/
	* g++.dg/lto/pr89330_[01].C: New test.
	* g++.dg/tree-prof/devirt.C: Added -fno-profile-values to dg-options.

From-SVN: r273825