(defknown %setnth (unsigned-byte list t) t (unsafe))
(defknown %set-fill-pointer (vector index) index (unsafe))
\f
+;;;; ALIEN and call-out-to-C stuff
+
+;;; 'call' attribute because we store the arg on the stack, which is in
+;;; some sense 'passing it upwards'
+(defknown sb!vm::push-word-on-c-stack (system-area-pointer) (values) (call))
+(defknown sb!vm::pop-words-from-c-stack (index) (values) (call))
+
;;;; miscellaneous internal utilities
(defknown %fun-name (function) t (flushable))