;;; SCS is the operand's LOAD-SCS vector, which we use to determine
;;; what SCs the VOP will accept. We pick any acceptable coerce VOP,
;;; since it practice it seems uninteresting to have more than one
;;; SCS is the operand's LOAD-SCS vector, which we use to determine
;;; what SCs the VOP will accept. We pick any acceptable coerce VOP,
;;; since it practice it seems uninteresting to have more than one