PR tree-optimization/33993
	* tree-vect-transform.c (vect_get_constant_vectors): Use build_vector
	rather than build_constructor_from_list if all list values are
	constants.
	(get_initial_def_for_induction): Use build_vector instead of
	build_constructor_from_list.

	* gcc.c-torture/compile/20071105-1.c: New test.

From-SVN: r129920