(defknown %logbitp (integer unsigned-byte) boolean
(movable foldable flushable))
-(defun %logbitp (index integer)
+(defun %logbitp (integer index)
(logbitp index integer))
;;; too much work to do the non-constant case (maybe?)
(define-vop (fast-logbitp-c/fixnum fast-conditional-c/fixnum)
(:translate %logbitp)
+ (:arg-types tagged-num (:constant (integer 0 29)))
(:generator 4
- (aver (<= y 29))
(inst bt x (+ y n-fixnum-tag-bits))
(inst jmp (if not-p :nc :c) target)))
(define-vop (fast-logbitp-c/signed fast-conditional-c/signed)
(:translate %logbitp)
+ (:arg-types signed-num (:constant (integer 0 31)))
(:generator 5
(inst bt x y)
(inst jmp (if not-p :nc :c) target)))
(define-vop (fast-logbitp-c/unsigned fast-conditional-c/unsigned)
(:translate %logbitp)
+ (:arg-types unsigned-num (:constant (integer 0 31)))
(:generator 5
(inst bt x y)
(inst jmp (if not-p :nc :c) target)))