PR tree-optimization/33742
	* tree-vect-transform.c (vectorizable_operation): Return false
	if get_vectype_for_scalar_type for scalar_dest can't be determined.
	(vectorizable_call): Same for rhs_type and lhs_type.

testsuite/ChangeLog:

	PR tree-optimization/33742
	* gcc.dg/pr33742.c: New testcase.

From-SVN: r129255