* tree-vect-data-refs.c (vect_no_alias_p): New function.
	(vect_prune_runtime_alias_test_list): Call vect_no_alias_p to
	resolve alias checks which are known at compilation time.
	Truncate vector LOOP_VINFO_MAY_ALIAS_DDRS(loop_vinfo) if all
	alias checks are resolved.  Move dump info for too many runtime
	alias checks to here...
	* tree-vect-loop.c (vect_analyze_loop_2): ...From here.

	gcc/testsuite
	* gcc.dg/vect/vect-35-big-array.c: Refine comment and test.
	* gcc.dg/vect/vect-35.c: Ditto.
	* gcc.dg/vect/vect-alias-check-2.c: New test.

From-SVN: r238301