(:big-endian
'(- sb!vm:n-word-bits extra))))
(%raw-bits sequence index))))
- (declare (type (mod #.sb!vm:n-word-bits)) extra)
+ (declare (type (mod #.sb!vm:n-word-bits) extra))
(declare (type sb!vm:word mask bits))
;; could consider LOGNOT for the zero case instead of
;; doing the subtraction...
((def (name width)
`(progn
(defknown ,name (integer (integer 0)) (unsigned-byte ,width)
- (foldable flushable movable))
+ (foldable flushable movable))
(define-modular-fun-optimizer ash ((integer count) :width width)
(when (and (<= width ,width)
- (constant-lvar-p count) ;?
- (plusp (lvar-value count)))
+ (or (and (constant-lvar-p count)
+ (plusp (lvar-value count)))
+ (csubtypep (lvar-type count)
+ (specifier-type '(and unsigned-byte
+ fixnum)))))
(cut-to-width integer width)
',name))
(setf (gethash ',name *modular-versions*) `(ash ,',width)))))
- #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
+ ;; This should really be dependent on SB!VM:N-WORD-BITS, but since we
+ ;; don't have a true Alpha64 port yet, we'll have to stick to
+ ;; SB!VM:N-MACHINE-WORD-BITS for the time being. --njf, 2004-08-14
+ #!+#.(cl:if (cl:= 32 sb!vm:n-machine-word-bits) '(and) '(or))
(def sb!vm::ash-left-mod32 32)
- #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
+ #!+#.(cl:if (cl:= 64 sb!vm:n-machine-word-bits) '(and) '(or))
(def sb!vm::ash-left-mod64 64))
\f