+(define-vop (fast-ash-left-mod64-c/unsigned=>unsigned
+ fast-ash-c/unsigned=>unsigned)
+ (:translate ash-left-mod64))
+(define-vop (fast-ash-left-mod64/unsigned=>unsigned
+ fast-ash-left/unsigned=>unsigned))
+(deftransform ash-left-mod64 ((integer count)
+ ((unsigned-byte 64) (unsigned-byte 6)))
+ (when (sb!c::constant-lvar-p count)
+ (sb!c::give-up-ir1-transform))
+ '(%primitive fast-ash-left-mod64/unsigned=>unsigned integer count))
+
+(macrolet
+ ((define-modular-backend (fun &optional constantp)
+ (let ((mfun-name (symbolicate fun '-mod64))
+ (modvop (symbolicate 'fast- fun '-mod64/unsigned=>unsigned))
+ (modcvop (symbolicate 'fast- fun '-mod64-c/unsigned=>unsigned))
+ (vop (symbolicate 'fast- fun '/unsigned=>unsigned))
+ (cvop (symbolicate 'fast- fun '-c/unsigned=>unsigned)))
+ `(progn
+ (define-modular-fun ,mfun-name (x y) ,fun :untagged nil 64)
+ (define-vop (,modvop ,vop)
+ (:translate ,mfun-name))
+ ,@(when constantp
+ `((define-vop (,modcvop ,cvop)
+ (:translate ,mfun-name))))))))
+ (define-modular-backend + t)
+ (define-modular-backend - t)
+ (define-modular-backend logeqv t)
+ (define-modular-backend logandc1)
+ (define-modular-backend logandc2 t)
+ (define-modular-backend logorc1)
+ (define-modular-backend logorc2 t))
+
+(define-source-transform lognand (x y)
+ `(lognot (logand ,x ,y)))
+(define-source-transform lognor (x y)
+ `(lognot (logior ,x ,y)))