* tree-vect-stmts.c (vectorizable_call): Add SLP_NODE argument.
	Handle vectorization of SLP calls.
	(vect_analyze_stmt): Adjust caller, add call to it for SLP too.
	(vect_transform_stmt): Adjust vectorizable_call caller, remove
	assertion.
	* tree-vect-slp.c (vect_get_and_check_slp_defs): For calls start
	with op_idx 3.
	(vect_build_slp_tree): Allow CALL_EXPR.

	* lib/target-supports.exp (check_effective_target_vect_call_sqrtf,
	check_effective_target_vect_call_copysignf,
	check_effective_target_vect_call_lrint): New procedures.
	* gcc.dg/vect/vect.exp: Run fast-math-bb-slp* tests using
	$VECT_SLP_CFLAGS with -ffast-math.
	* gcc.dg/vect/fast-math-vect-call-1.c: New test.
	* gcc.dg/vect/fast-math-vect-call-2.c: New test.
	* gcc.dg/vect/fast-math-bb-slp-call-1.c: New test.
	* gcc.dg/vect/fast-math-bb-slp-call-2.c: New test.

From-SVN: r181157