PR middle-end/60482
	* tree-vrp.c (register_edge_assert_for_1): Don't add assert
	if there are multiple uses, but op doesn't live on E edge.
	* tree-cfg.c (assert_unreachable_fallthru_edge_p): Also ignore
	clobber stmts before __builtin_unreachable.

	* gcc.dg/vect/pr60482.c: New test.

From-SVN: r208506