(def!constant register-arg-scn (meta-sc-number-or-lose 'descriptor-reg))
(def!constant immediate-arg-scn (meta-sc-number-or-lose 'any-reg))
(def!constant control-stack-arg-scn (meta-sc-number-or-lose 'control-stack))
(eval-when (:compile-toplevel :load-toplevel :execute)
(def!constant register-arg-scn (meta-sc-number-or-lose 'descriptor-reg))
(def!constant immediate-arg-scn (meta-sc-number-or-lose 'any-reg))
(def!constant control-stack-arg-scn (meta-sc-number-or-lose 'control-stack))
(eval-when (:compile-toplevel :load-toplevel :execute)