(define-vop (fast-fixnum-binop fast-safe-arith-op)
(:args (x :target r :scs (any-reg zero))
- (y :target r :scs (any-reg zero)))
+ (y :target r :scs (any-reg zero)))
(:arg-types tagged-num tagged-num)
(:results (r :scs (any-reg)))
(:result-types tagged-num)
(define-vop (fast-unsigned-binop fast-safe-arith-op)
(:args (x :target r :scs (unsigned-reg zero))
- (y :target r :scs (unsigned-reg zero)))
+ (y :target r :scs (unsigned-reg zero)))
(:arg-types unsigned-num unsigned-num)
(:results (r :scs (unsigned-reg)))
(:result-types unsigned-num)
(define-vop (fast-signed-binop fast-safe-arith-op)
(:args (x :target r :scs (signed-reg zero))
- (y :target r :scs (signed-reg zero)))
+ (y :target r :scs (signed-reg zero)))
(:arg-types signed-num signed-num)
(:results (r :scs (signed-reg)))
(:result-types signed-num)
(:args (x :target r :scs (any-reg zero)))
(:info y)
(:arg-types tagged-num
- (:constant (and (signed-byte 14) (not (integer 0 0)))))
+ (:constant (and (signed-byte 14) (not (integer 0 0)))))
(:results (r :scs (any-reg)))
(:result-types tagged-num)
(:note "inline fixnum arithmetic"))
(:args (x :target r :scs (any-reg zero)))
(:info y)
(:arg-types tagged-num
- (:constant (and (signed-byte 30) (not (integer 0 0)))))
+ (:constant (and (signed-byte 30) (not (integer 0 0)))))
(:results (r :scs (any-reg)))
(:result-types tagged-num)
(:note "inline fixnum arithmetic"))
(:args (x :target r :scs (any-reg zero)))
(:info y)
(:arg-types tagged-num
- (:constant (and (unsigned-byte 14) (not (integer 0 0)))))
+ (:constant (and (unsigned-byte 14) (not (integer 0 0)))))
(:results (r :scs (any-reg)))
(:result-types tagged-num)
(:note "inline fixnum logical op"))
(:args (x :target r :scs (any-reg zero)))
(:info y)
(:arg-types tagged-num
- (:constant (and (unsigned-byte 16) (not (integer 0 0)))))
+ (:constant (and (unsigned-byte 16) (not (integer 0 0)))))
(:results (r :scs (any-reg)))
(:result-types tagged-num)
(:note "inline fixnum logical op"))
(:args (x :target r :scs (unsigned-reg zero)))
(:info y)
(:arg-types unsigned-num
- (:constant (and (signed-byte 16) (not (integer 0 0)))))
+ (:constant (and (signed-byte 16) (not (integer 0 0)))))
(:results (r :scs (unsigned-reg)))
(:result-types unsigned-num)
(:note "inline (unsigned-byte 32) arithmetic"))
(:args (x :target r :scs (unsigned-reg zero)))
(:info y)
(:arg-types unsigned-num
- (:constant (and (unsigned-byte 32) (not (integer 0 0)))))
+ (:constant (and (unsigned-byte 32) (not (integer 0 0)))))
(:results (r :scs (unsigned-reg)))
(:result-types unsigned-num)
(:note "inline (unsigned-byte 32) arithmetic"))
(:args (x :target r :scs (signed-reg zero)))
(:info y)
(:arg-types signed-num
- (:constant (and (signed-byte 32) (not (integer 0 0)))))
+ (:constant (and (signed-byte 32) (not (integer 0 0)))))
(:results (r :scs (signed-reg)))
(:result-types signed-num)
(:note "inline (signed-byte 32) arithmetic"))
(:args (x :target r :scs (unsigned-reg zero)))
(:info y)
(:arg-types unsigned-num
- (:constant (and (unsigned-byte 16) (not (integer 0 0)))))
+ (:constant (and (unsigned-byte 16) (not (integer 0 0)))))
(:results (r :scs (unsigned-reg)))
(:result-types unsigned-num)
(:note "inline (unsigned-byte 32) logical op"))
(:args (x :target r :scs (unsigned-reg zero)))
(:info y)
(:arg-types unsigned-num
- (:constant (and (unsigned-byte 32) (not (integer 0 0)))))
+ (:constant (and (unsigned-byte 32) (not (integer 0 0)))))
(:results (r :scs (unsigned-reg)))
(:result-types unsigned-num)
(:note "inline (unsigned-byte 32) logical op"))
(:args (x :target r :scs (signed-reg zero)))
(:info y)
(:arg-types signed-num
- (:constant (and (unsigned-byte 32) (not (integer 0 0)))))
+ (:constant (and (unsigned-byte 32) (not (integer 0 0)))))
(:results (r :scs (signed-reg)))
(:result-types signed-num)
(:note "inline (signed-byte 32) logical op"))
(:args (x :target r :scs (signed-reg zero)))
(:info y)
(:arg-types signed-num
- (:constant (and (signed-byte 16) (not (integer 0 0)))))
+ (:constant (and (signed-byte 16) (not (integer 0 0)))))
(:results (r :scs (signed-reg)))
(:result-types signed-num)
(:note "inline (signed-byte 32) arithmetic"))
(:args (x :target r :scs (signed-reg zero)))
(:info y)
(:arg-types signed-num
- (:constant (and (unsigned-byte 16) (not (integer 0 0)))))
+ (:constant (and (unsigned-byte 16) (not (integer 0 0)))))
(:results (r :scs (signed-reg)))
(:result-types signed-num)
(:note "inline (signed-byte 32) logical op"))
(eval-when (:compile-toplevel :load-toplevel :execute)
-(defmacro !define-var-binop (translate untagged-penalty op
+(defmacro !define-var-binop (translate untagged-penalty op
&optional arg-swap restore-fixnum-mask)
`(progn
(define-vop (,(symbolicate "FAST-" translate "/FIXNUM=>FIXNUM")
- fast-fixnum-binop)
+ fast-fixnum-binop)
,@(when restore-fixnum-mask
- `((:temporary (:sc non-descriptor-reg) temp)))
+ `((:temporary (:sc non-descriptor-reg) temp)))
(:translate ,translate)
(:generator 2
- ,(if arg-swap
- `(inst ,op ,(if restore-fixnum-mask 'temp 'r) y x)
- `(inst ,op ,(if restore-fixnum-mask 'temp 'r) x y))
- ;; FIXME: remind me what convention we used for 64bitizing
- ;; stuff? -- CSR, 2003-08-27
- ,@(when restore-fixnum-mask
- `((inst clrrwi r temp (1- n-lowtag-bits))))))
+ ,(if arg-swap
+ `(inst ,op ,(if restore-fixnum-mask 'temp 'r) y x)
+ `(inst ,op ,(if restore-fixnum-mask 'temp 'r) x y))
+ ;; FIXME: remind me what convention we used for 64bitizing
+ ;; stuff? -- CSR, 2003-08-27
+ ,@(when restore-fixnum-mask
+ `((inst clrrwi r temp (1- n-lowtag-bits))))))
(define-vop (,(symbolicate "FAST-" translate "/SIGNED=>SIGNED")
- fast-signed-binop)
+ fast-signed-binop)
(:translate ,translate)
(:generator ,(1+ untagged-penalty)
,(if arg-swap
- `(inst ,op r y x)
- `(inst ,op r x y))))
+ `(inst ,op r y x)
+ `(inst ,op r x y))))
(define-vop (,(symbolicate "FAST-" translate "/UNSIGNED=>UNSIGNED")
- fast-unsigned-binop)
+ fast-unsigned-binop)
(:translate ,translate)
(:generator ,(1+ untagged-penalty)
- ,(if arg-swap
- `(inst ,op r y x)
- `(inst ,op r x y))))))
+ ,(if arg-swap
+ `(inst ,op r y x)
+ `(inst ,op r x y))))))
;;; FIXME: the code has really only been checked for adds; we could do
;;; subtracts, too, but my brain is not up to the task of figuring out
(defmacro !define-const-binop (translate untagged-penalty op &optional (shifted-op nil))
`(progn
(define-vop (,(symbolicate 'fast- translate '-c/fixnum=>fixnum)
- ,(if shifted-op
+ ,(if shifted-op
'fast-fixnum-binop30-c
'fast-fixnum-binop-c))
(:translate ,translate)
(inst ,op r temp low-half)))))
`(inst ,op r x (fixnumize y)))))
(define-vop (,(symbolicate 'fast- translate '-c/signed=>signed)
- ,(if shifted-op
+ ,(if shifted-op
'fast-signed-binop32-c
'fast-signed-binop-c))
(:translate ,translate)
(inst ,op r temp low-half)))))
`(inst ,op r x y))))
(define-vop (,(symbolicate 'fast- translate '-c/unsigned=>unsigned)
- ,(if shifted-op
+ ,(if shifted-op
'fast-unsigned-binop32-c
'fast-unsigned-binop-c))
(:translate ,translate)
(defmacro !define-const-logop (translate untagged-penalty op &optional (shifted-op nil))
`(progn
(define-vop (,(symbolicate 'fast- translate '-c/fixnum=>fixnum)
- ,(if shifted-op
+ ,(if shifted-op
'fast-fixnum-logop30-c
'fast-fixnum-logop-c))
(:translate ,translate)
(inst ,op r temp low-half))))
`(inst ,op r x (fixnumize y)))))
(define-vop (,(symbolicate 'fast- translate '-c/signed=>signed)
- ,(if shifted-op
+ ,(if shifted-op
'fast-signed-logop32-c
'fast-signed-logop-c))
(:translate ,translate)
,@(when shifted-op
`((:temporary (:sc non-descriptor-reg :target r) temp)))
(:generator ,untagged-penalty
- ,(if shifted-op
+ ,(if shifted-op
`(let ((high-half (ldb (byte 16 16) y))
(low-half (ldb (byte 16 0) y)))
(cond
(inst ,op r temp low-half))))
`(inst ,op r x y))))
(define-vop (,(symbolicate 'fast- translate '-c/unsigned=>unsigned)
- ,(if shifted-op
+ ,(if shifted-op
'fast-unsigned-logop32-c
'fast-unsigned-logop-c))
(:translate ,translate)
(inst addo. r x y)
(inst bns no-overflow)
(inst unimp (logior (ash (reg-tn-encoding r) 5)
- fixnum-additive-overflow-trap))
+ fixnum-additive-overflow-trap))
(emit-label no-overflow))))
(define-vop (-/fixnum fast--/fixnum=>fixnum)
(inst subo. r x y)
(inst bns no-overflow)
(inst unimp (logior (ash (reg-tn-encoding r) 5)
- fixnum-additive-overflow-trap))
+ fixnum-additive-overflow-trap))
(emit-label no-overflow))))
(define-vop (fast-*/fixnum=>fixnum fast-fixnum-binop)
(define-vop (fast-*-c/fixnum=>fixnum fast-fixnum-binop-c)
(:translate *)
- (:arg-types tagged-num
- (:constant (and (signed-byte 16) (not (integer 0 0)))))
+ (:arg-types tagged-num
+ (:constant (and (signed-byte 16) (not (integer 0 0)))))
(:generator 1
(inst mulli r x y)))
(define-vop (fast-*-bigc/fixnum=>fixnum fast-fixnum-binop-c)
(:translate *)
(:arg-types tagged-num
- (:constant (and fixnum (not (signed-byte 16)))))
+ (:constant (and fixnum (not (signed-byte 16)))))
(:temporary (:scs (non-descriptor-reg)) temp)
(:generator 1
(inst lr temp y)
;;; Shifting
(macrolet ((def (name sc-type type result-type cost)
- `(define-vop (,name)
- (:note "inline ASH")
- (:translate ash)
- (:args (number :scs (,sc-type))
- (amount :scs (signed-reg unsigned-reg immediate)))
- (:arg-types ,type positive-fixnum)
- (:results (result :scs (,result-type)))
- (:result-types ,type)
- (:policy :fast-safe)
- (:generator ,cost
- (sc-case amount
- ((signed-reg unsigned-reg)
- (inst slw result number amount))
- (immediate
- (let ((amount (tn-value amount)))
- (aver (> amount 0))
- (inst slwi result number amount))))))))
+ `(define-vop (,name)
+ (:note "inline ASH")
+ (:translate ash)
+ (:args (number :scs (,sc-type))
+ (amount :scs (signed-reg unsigned-reg immediate)))
+ (:arg-types ,type positive-fixnum)
+ (:results (result :scs (,result-type)))
+ (:result-types ,type)
+ (:policy :fast-safe)
+ (:generator ,cost
+ (sc-case amount
+ ((signed-reg unsigned-reg)
+ (inst slw result number amount))
+ (immediate
+ (let ((amount (tn-value amount)))
+ (aver (> amount 0))
+ (inst slwi result number amount))))))))
;; FIXME: There's the opportunity for a sneaky optimization here, I
;; think: a FAST-ASH-LEFT-C/FIXNUM=>SIGNED vop. -- CSR, 2003-09-03
(def fast-ash-left/fixnum=>fixnum any-reg tagged-num any-reg 2)
(define-vop (fast-ash/unsigned=>unsigned)
(:note "inline ASH")
(:args (number :scs (unsigned-reg) :to :save)
- (amount :scs (signed-reg)))
+ (amount :scs (signed-reg)))
(:arg-types (:or unsigned-num) signed-num)
(:results (result :scs (unsigned-reg)))
(:result-types unsigned-num)
(:temporary (:sc non-descriptor-reg) ndesc)
(:generator 5
(let ((positive (gen-label))
- (done (gen-label)))
+ (done (gen-label)))
(inst cmpwi amount 0)
(inst neg ndesc amount)
(inst bge positive)
(inst ble done)
(move result zero-tn)
(inst b done)
-
+
(emit-label positive)
;; The result-type assures us that this shift will not overflow.
(inst slw result number amount)
-
+
(emit-label done))))
(define-vop (fast-ash-c/unsigned=>unsigned)
(define-vop (fast-ash/signed=>signed)
(:note "inline ASH")
(:args (number :scs (signed-reg) :to :save)
- (amount :scs (signed-reg immediate)))
+ (amount :scs (signed-reg immediate)))
(:arg-types (:or signed-num) signed-num)
(:results (result :scs (signed-reg)))
(:result-types (:or signed-num))
(sc-case amount
(signed-reg
(let ((positive (gen-label))
- (done (gen-label)))
- (inst cmpwi amount 0)
- (inst neg ndesc amount)
- (inst bge positive)
- (inst cmpwi ndesc 31)
- (inst sraw result number ndesc)
- (inst ble done)
- (inst srawi result number 31)
- (inst b done)
-
- (emit-label positive)
- ;; The result-type assures us that this shift will not overflow.
- (inst slw result number amount)
-
- (emit-label done)))
+ (done (gen-label)))
+ (inst cmpwi amount 0)
+ (inst neg ndesc amount)
+ (inst bge positive)
+ (inst cmpwi ndesc 31)
+ (inst sraw result number ndesc)
+ (inst ble done)
+ (inst srawi result number 31)
+ (inst b done)
+
+ (emit-label positive)
+ ;; The result-type assures us that this shift will not overflow.
+ (inst slw result number amount)
+
+ (emit-label done)))
(immediate
(let ((amount (tn-value amount)))
- (if (minusp amount)
- (let ((amount (min 31 (- amount))))
- (inst srawi result number amount))
- (inst slwi result number amount)))))))
+ (if (minusp amount)
+ (let ((amount (min 31 (- amount))))
+ (inst srawi result number amount))
+ (inst slwi result number amount)))))))
(:policy :fast-safe)
(:args (arg :scs (signed-reg)))
(:arg-types signed-num)
- (:results (res :scs (any-reg)))
- (:result-types positive-fixnum)
- (:temporary (:scs (non-descriptor-reg) :to (:argument 0)) shift)
+ (:results (res :scs (unsigned-reg)))
+ (:result-types unsigned-num)
(:generator 6
; (integer-length arg) = (- 32 (cntlz (if (>= arg 0) arg (lognot arg))))
(let ((nonneg (gen-label)))
- (inst cntlzw. shift arg)
+ (inst cntlzw. res arg)
(inst bne nonneg)
- (inst not shift arg)
- (inst cntlzw shift shift)
+ (inst not res arg)
+ (inst cntlzw res res)
(emit-label nonneg)
- (inst slwi shift shift 2)
- (inst subfic res shift (fixnumize 32)))))
+ (inst subfic res res 32))))
+
+(define-vop (unsigned-byte-32-len)
+ (:translate integer-length)
+ (:note "inline (unsigned-byte 32) integer-length")
+ (:policy :fast-safe)
+ (:args (arg :scs (unsigned-reg)))
+ (:arg-types unsigned-num)
+ (:results (res :scs (unsigned-reg)))
+ (:result-types unsigned-num)
+ (:generator 4
+ (inst cntlzw res arg)
+ (inst subfic res res 32)))
(define-vop (unsigned-byte-32-count)
(:translate logcount)
(:temporary (:scs (non-descriptor-reg) :from (:argument 0)) shift temp)
(:generator 30
(let ((loop (gen-label))
- (done (gen-label)))
+ (done (gen-label)))
(inst add. shift zero-tn arg)
(move res zero-tn)
(inst beq done)
(inst not res x)))
(define-vop (fast-ash-left-mod32-c/unsigned=>unsigned
- fast-ash-c/unsigned=>unsigned)
+ fast-ash-c/unsigned=>unsigned)
(:translate ash-left-mod32))
(define-vop (fast-ash-left-mod32/unsigned=>unsigned
fast-ash-left/unsigned=>unsigned))
(deftransform ash-left-mod32 ((integer count)
- ((unsigned-byte 32) (unsigned-byte 5)))
+ ((unsigned-byte 32) (unsigned-byte 5)))
(when (sb!c::constant-lvar-p count)
(sb!c::give-up-ir1-transform))
'(%primitive fast-ash-left-mod32/unsigned=>unsigned integer count))
-(macrolet
+(macrolet
((define-modular-backend (fun &optional constantp)
(let ((mfun-name (symbolicate fun '-mod32))
- (modvop (symbolicate 'fast- fun '-mod32/unsigned=>unsigned))
- (modcvop (symbolicate 'fast- fun 'mod32-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 :unsigned 32)
- (define-vop (,modvop ,vop)
- (:translate ,mfun-name))
- ,@(when constantp
- `((define-vop (,modcvop ,cvop)
- (:translate ,mfun-name))))))))
+ (modvop (symbolicate 'fast- fun '-mod32/unsigned=>unsigned))
+ (modcvop (symbolicate 'fast- fun 'mod32-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 :unsigned 32)
+ (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 * t)
(define-vop (fast-conditional/fixnum fast-conditional)
(:args (x :scs (any-reg zero))
- (y :scs (any-reg zero)))
+ (y :scs (any-reg zero)))
(:arg-types tagged-num tagged-num)
(:note "inline fixnum comparison"))
(define-vop (fast-conditional/signed fast-conditional)
(:args (x :scs (signed-reg zero))
- (y :scs (signed-reg zero)))
+ (y :scs (signed-reg zero)))
(:arg-types signed-num signed-num)
(:note "inline (signed-byte 32) comparison"))
(define-vop (fast-conditional/unsigned fast-conditional)
(:args (x :scs (unsigned-reg zero))
- (y :scs (unsigned-reg zero)))
+ (y :scs (unsigned-reg zero)))
(:arg-types unsigned-num unsigned-num)
(:note "inline (unsigned-byte 32) comparison"))
(define-vop (fast-eql/fixnum fast-conditional)
(:args (x :scs (any-reg descriptor-reg zero))
- (y :scs (any-reg zero)))
+ (y :scs (any-reg zero)))
(:arg-types tagged-num tagged-num)
(:note "inline fixnum comparison")
(:translate eql)
(define-vop (merge-bits)
(:translate merge-bits)
(:args (shift :scs (signed-reg unsigned-reg))
- (prev :scs (unsigned-reg))
- (next :scs (unsigned-reg)))
+ (prev :scs (unsigned-reg))
+ (next :scs (unsigned-reg)))
(:arg-types tagged-num unsigned-num unsigned-num)
(:temporary (:scs (unsigned-reg) :to (:result 0)) temp)
(:temporary (:scs (unsigned-reg) :to (:result 0) :target result) res)
(define-vop (shift-towards-someplace)
(:policy :fast-safe)
(:args (num :scs (unsigned-reg))
- (amount :scs (signed-reg)))
+ (amount :scs (signed-reg)))
(:arg-types unsigned-num tagged-num)
(:results (r :scs (unsigned-reg)))
(:result-types unsigned-num))
(:variant bignum-digits-offset other-pointer-lowtag)
(:translate sb!bignum:%bignum-set)
(:args (object :scs (descriptor-reg))
- (index :scs (any-reg immediate zero))
- (value :scs (unsigned-reg)))
+ (index :scs (any-reg immediate zero))
+ (value :scs (unsigned-reg)))
(:arg-types t positive-fixnum unsigned-num)
(:results (result :scs (unsigned-reg)))
(:result-types unsigned-num))
(:translate sb!bignum:%add-with-carry)
(:policy :fast-safe)
(:args (a :scs (unsigned-reg))
- (b :scs (unsigned-reg))
- (c :scs (any-reg)))
+ (b :scs (unsigned-reg))
+ (c :scs (any-reg)))
(:arg-types unsigned-num unsigned-num positive-fixnum)
(:temporary (:scs (unsigned-reg)) temp)
(:results (result :scs (unsigned-reg))
- (carry :scs (unsigned-reg)))
+ (carry :scs (unsigned-reg)))
(:result-types unsigned-num positive-fixnum)
(:generator 3
(inst addic temp c -1)
(:translate sb!bignum:%subtract-with-borrow)
(:policy :fast-safe)
(:args (a :scs (unsigned-reg))
- (b :scs (unsigned-reg))
- (c :scs (any-reg)))
+ (b :scs (unsigned-reg))
+ (c :scs (any-reg)))
(:arg-types unsigned-num unsigned-num positive-fixnum)
(:temporary (:scs (unsigned-reg)) temp)
(:results (result :scs (unsigned-reg))
- (borrow :scs (unsigned-reg)))
+ (borrow :scs (unsigned-reg)))
(:result-types unsigned-num positive-fixnum)
(:generator 4
(inst addic temp c -1)
(:translate sb!bignum:%multiply-and-add)
(:policy :fast-safe)
(:args (x :scs (unsigned-reg))
- (y :scs (unsigned-reg))
- (carry-in :scs (unsigned-reg) :to (:eval 1)))
+ (y :scs (unsigned-reg))
+ (carry-in :scs (unsigned-reg) :to (:eval 1)))
(:arg-types unsigned-num unsigned-num unsigned-num)
(:temporary (:scs (unsigned-reg) :to (:result 0) :target hi) hi-temp)
(:temporary (:scs (unsigned-reg) :from (:eval 0) :to (:result 1)
- :target lo) lo-temp)
+ :target lo) lo-temp)
(:results (hi :scs (unsigned-reg))
- (lo :scs (unsigned-reg)))
+ (lo :scs (unsigned-reg)))
(:result-types unsigned-num unsigned-num)
(:generator 40
(inst mulhwu hi-temp x y)
(:translate sb!bignum:%multiply-and-add)
(:policy :fast-safe)
(:args (x :scs (unsigned-reg))
- (y :scs (unsigned-reg))
- (prev :scs (unsigned-reg) :to (:eval 1))
- (carry-in :scs (unsigned-reg) :to (:eval 1)))
+ (y :scs (unsigned-reg))
+ (prev :scs (unsigned-reg) :to (:eval 1))
+ (carry-in :scs (unsigned-reg) :to (:eval 1)))
(:arg-types unsigned-num unsigned-num unsigned-num unsigned-num)
(:temporary (:scs (unsigned-reg) :to (:result 0) :target hi) hi-temp)
(:temporary (:scs (unsigned-reg) :from (:eval 0) :to (:result 1)
- :target lo) lo-temp)
+ :target lo) lo-temp)
(:results (hi :scs (unsigned-reg))
- (lo :scs (unsigned-reg)))
+ (lo :scs (unsigned-reg)))
(:result-types unsigned-num unsigned-num)
(:generator 40
(inst mulhwu hi-temp x y)
(:translate sb!bignum:%multiply)
(:policy :fast-safe)
(:args (x :scs (unsigned-reg) :to (:eval 1))
- (y :scs (unsigned-reg) :to (:eval 1)))
+ (y :scs (unsigned-reg) :to (:eval 1)))
(:arg-types unsigned-num unsigned-num)
(:results (hi :scs (unsigned-reg) :from (:eval 1))
- (lo :scs (unsigned-reg) :from (:eval 0)))
+ (lo :scs (unsigned-reg) :from (:eval 0)))
(:result-types unsigned-num unsigned-num)
(:generator 40
(inst mullw lo x y)
(:translate sb!bignum:%floor)
(:policy :fast-safe)
(:args (num-high :scs (unsigned-reg) :target rem)
- (num-low :scs (unsigned-reg) :target rem-low)
- (denom :scs (unsigned-reg) :to (:eval 1)))
+ (num-low :scs (unsigned-reg) :target rem-low)
+ (denom :scs (unsigned-reg) :to (:eval 1)))
(:arg-types unsigned-num unsigned-num unsigned-num)
(:temporary (:scs (unsigned-reg) :from (:argument 1)) rem-low)
(:temporary (:scs (unsigned-reg) :from (:eval 0)) temp)
(:results (quo :scs (unsigned-reg) :from (:eval 0))
- (rem :scs (unsigned-reg) :from (:argument 0)))
+ (rem :scs (unsigned-reg) :from (:argument 0)))
(:result-types unsigned-num unsigned-num)
(:generator 325 ; number of inst assuming targeting works.
(move rem num-high)
(move rem-low num-low)
(flet ((maybe-subtract (&optional (guess temp))
- (inst subi temp guess 1)
- (inst and temp temp denom)
- (inst sub rem rem temp))
- (sltu (res x y)
- (inst subfc res y x)
- (inst subfe res res res)
- (inst neg res res)))
+ (inst subi temp guess 1)
+ (inst and temp temp denom)
+ (inst sub rem rem temp))
+ (sltu (res x y)
+ (inst subfc res y x)
+ (inst subfe res res res)
+ (inst neg res res)))
(sltu quo rem denom)
(maybe-subtract quo)
(dotimes (i 32)
- (inst slwi rem rem 1)
- (inst srwi temp rem-low 31)
- (inst or rem rem temp)
- (inst slwi rem-low rem-low 1)
- (sltu temp rem denom)
- (inst slwi quo quo 1)
- (inst or quo quo temp)
- (maybe-subtract)))
+ (inst slwi rem rem 1)
+ (inst srwi temp rem-low 31)
+ (inst or rem rem temp)
+ (inst slwi rem-low rem-low 1)
+ (sltu temp rem denom)
+ (inst slwi quo quo 1)
+ (inst or quo quo temp)
+ (maybe-subtract)))
(inst not quo quo)))
#|
(:translate sb!bignum:%floor)
(:policy :fast-safe)
(:args (div-high :scs (unsigned-reg) :target rem)
- (div-low :scs (unsigned-reg) :target quo)
- (divisor :scs (unsigned-reg)))
+ (div-low :scs (unsigned-reg) :target quo)
+ (divisor :scs (unsigned-reg)))
(:arg-types unsigned-num unsigned-num unsigned-num)
(:results (quo :scs (unsigned-reg) :from (:argument 1))
- (rem :scs (unsigned-reg) :from (:argument 0)))
+ (rem :scs (unsigned-reg) :from (:argument 0)))
(:result-types unsigned-num unsigned-num)
(:generator 300
(inst mtmq div-low)
(:translate sb!bignum:%ashr)
(:policy :fast-safe)
(:args (digit :scs (unsigned-reg))
- (count :scs (unsigned-reg)))
+ (count :scs (unsigned-reg)))
(:arg-types unsigned-num positive-fixnum)
(:results (result :scs (unsigned-reg)))
(:result-types unsigned-num)
(in-package "SB!C")
(deftransform * ((x y)
- ((unsigned-byte 32) (constant-arg (unsigned-byte 32)))
- (unsigned-byte 32))
+ ((unsigned-byte 32) (constant-arg (unsigned-byte 32)))
+ (unsigned-byte 32))
"recode as shifts and adds"
(let ((y (lvar-value y)))
(multiple-value-bind (result adds shifts)
- (ub32-strength-reduce-constant-multiply 'x y)
+ (ub32-strength-reduce-constant-multiply 'x y)
(cond
((typep y '(signed-byte 16))
- ;; a mulli instruction has a latency of 5.
- (when (> (+ adds shifts) 4)
- (give-up-ir1-transform)))
+ ;; a mulli instruction has a latency of 5.
+ (when (> (+ adds shifts) 4)
+ (give-up-ir1-transform)))
(t
- ;; a mullw instruction also has a latency of 5, plus two
- ;; instructions (in general) to load the immediate into a
- ;; register.
- (when (> (+ adds shifts) 6)
- (give-up-ir1-transform))))
+ ;; a mullw instruction also has a latency of 5, plus two
+ ;; instructions (in general) to load the immediate into a
+ ;; register.
+ (when (> (+ adds shifts) 6)
+ (give-up-ir1-transform))))
(or result 0))))
projects / sbcl.git / blobdiff