\f
;;;; test generation utilities
-(eval-when (:compile-toplevel :execute)
-
-(defparameter *immediate-types*
- (list unbound-marker-type base-char-type))
-
-(defparameter *fun-header-types*
- (list funcallable-instance-header-type
- simple-fun-header-type
- closure-fun-header-type
- closure-header-type))
-
-(defun canonicalize-headers (headers)
- (collect ((results))
- (let ((start nil)
- (prev nil)
- (delta (- other-immediate-1-lowtag other-immediate-0-lowtag)))
- (flet ((emit-test ()
- (results (if (= start prev)
- start
- (cons start prev)))))
- (dolist (header (sort headers #'<))
- (cond ((null start)
- (setf start header)
- (setf prev header))
- ((= header (+ prev delta))
- (setf prev header))
- (t
- (emit-test)
- (setf start header)
- (setf prev header))))
- (emit-test)))
- (results)))
-
-) ; EVAL-WHEN
-
-(macrolet ((test-type (value target not-p &rest type-codes)
- ;; Determine what interesting combinations we need to test for.
- (let* ((type-codes (mapcar #'eval type-codes))
- (fixnump (and (member even-fixnum-lowtag type-codes)
- (member odd-fixnum-lowtag type-codes)
- t))
- (lowtags (remove lowtag-limit type-codes :test #'<))
- (extended (remove lowtag-limit type-codes :test #'>))
- (immediates (intersection extended *immediate-types* :test #'eql))
- (headers (set-difference extended *immediate-types* :test #'eql))
- (function-p (if (intersection headers *fun-header-types*)
- (if (subsetp headers *fun-header-types*)
- t
- (error "can't test for mix of function subtypes ~
- and normal header types"))
- nil)))
- (unless type-codes
- (error "At least one type must be supplied for TEST-TYPE."))
- (cond
- (fixnump
- (when (remove-if #'(lambda (x)
- (or (= x even-fixnum-lowtag)
- (= x odd-fixnum-lowtag)))
- lowtags)
- (error "can't mix fixnum testing with other lowtags"))
- (when function-p
- (error "can't mix fixnum testing with function subtype testing"))
- (when immediates
- (error "can't mix fixnum testing with other immediates"))
- (if headers
- `(%test-fixnum-and-headers ,value ,target ,not-p
- ',(canonicalize-headers headers))
- `(%test-fixnum ,value ,target ,not-p)))
- (immediates
- (when headers
- (error "can't mix testing of immediates with testing of headers"))
- (when lowtags
- (error "can't mix testing of immediates with testing of lowtags"))
- (when (cdr immediates)
- (error "can't test multiple immediates at the same time"))
- `(%test-immediate ,value ,target ,not-p ,(car immediates)))
- (lowtags
- (when (cdr lowtags)
- (error "can't test multiple lowtags at the same time"))
- (if headers
- `(%test-lowtag-and-headers
- ,value ,target ,not-p ,(car lowtags)
- ,function-p ',(canonicalize-headers headers))
- `(%test-lowtag ,value ,target ,not-p ,(car lowtags))))
- (headers
- `(%test-headers ,value ,target ,not-p ,function-p
- ',(canonicalize-headers headers)))
- (t
- (error "nothing to test?"))))))
-
-;;; Emit the most compact form of the test immediate instruction,
-;;; using an 8 bit test when the immediate is only 8 bits and the
-;;; value is one of the four low registers (eax, ebx, ecx, edx) or the
-;;; control stack.
(defun generate-fixnum-test (value)
- (let ((offset (tn-offset value)))
- (cond ((and (sc-is value any-reg descriptor-reg)
- (or (= offset eax-offset) (= offset ebx-offset)
- (= offset ecx-offset) (= offset edx-offset)))
- (inst test (make-random-tn :kind :normal
- :sc (sc-or-lose 'byte-reg)
- :offset offset)
- 3))
- ((sc-is value control-stack)
- (inst test (make-ea :byte :base ebp-tn
- :disp (- (* (1+ offset) sb!vm:word-bytes)))
- 3))
- (t
- (inst test value 3)))))
+ (emit-optimized-test-inst value fixnum-tag-mask))
(defun %test-fixnum (value target not-p)
(generate-fixnum-test value)
;; Code a single instruction byte test if possible.
(let ((offset (tn-offset value)))
(cond ((and (sc-is value any-reg descriptor-reg)
- (or (= offset eax-offset) (= offset ebx-offset)
- (= offset ecx-offset) (= offset edx-offset)))
- (inst cmp (make-random-tn :kind :normal
- :sc (sc-or-lose 'byte-reg)
- :offset offset)
- immediate))
- (t
- (move eax-tn value)
- (inst cmp al-tn immediate))))
+ (or (= offset eax-offset) (= offset ebx-offset)
+ (= offset ecx-offset) (= offset edx-offset)))
+ (inst cmp (make-random-tn :kind :normal
+ :sc (sc-or-lose 'byte-reg)
+ :offset offset)
+ immediate))
+ (t
+ (move eax-tn value)
+ (inst cmp al-tn immediate))))
(inst jmp (if not-p :ne :e) target))
-(defun %test-lowtag (value target not-p lowtag &optional al-loaded)
- (unless al-loaded
- (move eax-tn value)
- (inst and al-tn lowtag-mask))
- (inst cmp al-tn lowtag)
+(defun %test-lowtag (value target not-p lowtag)
+ (inst lea eax-tn (make-ea :dword :base value :disp (- lowtag)))
+ (inst test al-tn lowtag-mask)
+ ;; FIXME: another 'optimization' which doesn't appear to work:
+ ;; prefetching the hypothetically pointed-to version should help,
+ ;; but this is in fact non-ideal in plenty of ways: we emit way too
+ ;; many of these prefetch instructions; pointed-to objects are very
+ ;; often in the cache anyway; etc. etc. Still, as proof-of-concept,
+ ;; not too bad. -- CSR, 2004-07-27
+ (when (member :prefetch *backend-subfeatures*)
+ (inst prefetchnta (make-ea :byte :base value :disp (- lowtag))))
(inst jmp (if not-p :ne :e) target))
-(defun %test-lowtag-and-headers (value target not-p lowtag function-p headers)
- (let ((drop-through (gen-label)))
- (%test-lowtag value (if not-p drop-through target) nil lowtag)
- (%test-headers value target not-p function-p headers drop-through t)))
-
-
-(defun %test-headers (value target not-p function-p headers
- &optional (drop-through (gen-label)) al-loaded)
- (let ((lowtag (if function-p fun-pointer-lowtag other-pointer-lowtag)))
- (multiple-value-bind (equal less-or-equal when-true when-false)
- ;; EQUAL and LESS-OR-EQUAL are the conditions for branching to TARGET.
- ;; WHEN-TRUE and WHEN-FALSE are the labels to branch to when we know
- ;; it's true and when we know it's false respectively.
- (if not-p
- (values :ne :a drop-through target)
- (values :e :na target drop-through))
- (%test-lowtag value when-false t lowtag al-loaded)
- (inst mov al-tn (make-ea :byte :base value :disp (- lowtag)))
- (do ((remaining headers (cdr remaining)))
- ((null remaining))
- (let ((header (car remaining))
- (last (null (cdr remaining))))
- (cond
- ((atom header)
- (inst cmp al-tn header)
- (if last
- (inst jmp equal target)
- (inst jmp :e when-true)))
- (t
- (let ((start (car header))
- (end (cdr header)))
- (unless (= start bignum-type)
- (inst cmp al-tn start)
- (inst jmp :b when-false)) ; was :l
- (inst cmp al-tn end)
- (if last
- (inst jmp less-or-equal target)
- (inst jmp :be when-true))))))) ; was :le
- (emit-label drop-through))))
-
-;; pw -- based on RISC version. Not sure extra hair is needed yet.
-;; difference is that this one uses SUB which overwrites operand
-;; both cmp and sub take 2 cycles so maybe its a wash
-#+nil
(defun %test-headers (value target not-p function-p headers
- &optional (drop-through (gen-label)) al-loaded)
+ &optional (drop-through (gen-label)))
(let ((lowtag (if function-p fun-pointer-lowtag other-pointer-lowtag)))
- (multiple-value-bind (equal less-or-equal when-true when-false)
- ;; EQUAL and LESS-OR-EQUAL are the conditions for branching to TARGET.
- ;; WHEN-TRUE and WHEN-FALSE are the labels to branch to when we know
- ;; it's true and when we know it's false respectively.
- (if not-p
- (values :ne :a drop-through target)
- (values :e :na target drop-through))
- (%test-lowtag value when-false t lowtag al-loaded)
- (inst mov al-tn (make-ea :byte :base value :disp (- lowtag)))
- (let ((delta 0))
- (do ((remaining headers (cdr remaining)))
- ((null remaining))
- (let ((header (car remaining))
- (last (null (cdr remaining))))
- (cond
- ((atom header)
- (inst sub al-tn (- header delta))
- (setf delta header)
- (if last
- (inst jmp equal target)
- (inst jmp :e when-true)))
- (t
- (let ((start (car header))
- (end (cdr header)))
- (unless (= start bignum-type)
- (inst sub al-tn (- start delta))
- (setf delta start)
- (inst jmp :l when-false))
- (inst sub al-tn (- end delta))
- (setf delta end)
- (if last
- (inst jmp less-or-equal target)
- (inst jmp :le when-true))))))))
+ (multiple-value-bind (equal less-or-equal greater-or-equal when-true when-false)
+ ;; EQUAL, LESS-OR-EQUAL and GREATER-OR-EQUAL are the conditions for
+ ;; branching to TARGET. WHEN-TRUE and WHEN-FALSE are the
+ ;; labels to branch to when we know it's true and when we know
+ ;; it's false respectively.
+ (if not-p
+ (values :ne :a :b drop-through target)
+ (values :e :na :nb target drop-through))
+ (%test-lowtag value when-false t lowtag)
+ (cond
+ ((and (null (cdr headers))
+ (numberp (car headers)))
+ ;; Optimize the common case: referencing the value from memory
+ ;; is slightly smaller than loading it and then doing the
+ ;; comparison. Doing this for other cases (e.g. range of
+ ;; [BIGNUM-WIDETAG..FOO-WIDETAG]) is also possible, but such
+ ;; opportunities don't come up very often and the code would
+ ;; get pretty hairy...
+ (inst cmp (make-ea :byte :base value :disp (- lowtag)) (car headers))
+ (inst jmp equal target))
+ (t
+ (inst mov al-tn (make-ea :byte :base value :disp (- lowtag)))
+ (do ((remaining headers (cdr remaining)))
+ ((null remaining))
+ (let ((header (car remaining))
+ (last (null (cdr remaining))))
+ (cond
+ ((atom header)
+ (cond
+ ((and (not last) (null (cddr remaining))
+ (atom (cadr remaining))
+ (= (logcount (logxor header (cadr remaining))) 1))
+ ;; BASE-STRING, (VECTOR NIL), BIT-VECTOR, (VECTOR T)
+ (inst and al-tn (ldb (byte 8 0) (logeqv header (cadr remaining))))
+ (inst cmp al-tn (ldb (byte 8 0) (logand header (cadr remaining))))
+ (inst jmp equal target)
+ (return))
+ (t
+ (inst cmp al-tn header)
+ (if last
+ (inst jmp equal target)
+ (inst jmp :e when-true)))))
+ (t
+ (let ((start (car header))
+ (end (cdr header)))
+ (cond
+ ;; LAST = don't need al-tn later
+ ((and last (not (= start bignum-widetag))
+ (= (+ start 4) end) (= (logcount (logxor start end)) 1))
+ ;; SIMPLE-STRING
+ (inst and al-tn (ldb (byte 8 0) (logeqv start end)))
+ (inst cmp al-tn (ldb (byte 8 0) (logand start end)))
+ (inst jmp equal target))
+ ((and (not last) (null (cddr remaining))
+ (= (+ start 4) end) (= (logcount (logxor start end)) 1)
+ (listp (cadr remaining))
+ (= (+ (caadr remaining) 4) (cdadr remaining))
+ (= (logcount (logxor (caadr remaining) (cdadr remaining))) 1)
+ (= (logcount (logxor (caadr remaining) start)) 1))
+ ;; STRING
+ (inst and al-tn (ldb (byte 8 0) (logeqv start (cdadr remaining))))
+ (inst cmp al-tn (ldb (byte 8 0) (logand start (cdadr remaining))))
+ (inst jmp equal target)
+ ;; we've shortcircuited the DO, so we must return.
+ ;; It's OK to do so, because (NULL (CDDR REMAINING))
+ ;; was true.
+ (return))
+ (t
+ (cond
+ ((= start bignum-widetag)
+ (inst cmp al-tn end)
+ (if last
+ (inst jmp less-or-equal target)
+ (inst jmp :be when-true)))
+ ((= end complex-array-widetag)
+ (inst cmp al-tn start)
+ (if last
+ (inst jmp greater-or-equal target)
+ (inst jmp :b when-false)))
+ ((not last)
+ (inst cmp al-tn start)
+ (inst jmp :b when-false)
+ (inst cmp al-tn end)
+ (if last
+ (inst jmp less-or-equal target)
+ (inst jmp :be when-true)))
+ (t
+ (inst sub al-tn start)
+ (inst cmp al-tn (- end start))
+ (inst jmp less-or-equal target))))))))))))
(emit-label drop-through))))
\f
;;;; type checking and testing
(define-vop (simple-check-type)
(:args (value :target result :scs (any-reg descriptor-reg)))
(:results (result :scs (any-reg descriptor-reg)
- :load-if (not (and (sc-is value any-reg descriptor-reg)
- (sc-is result control-stack)))))
+ :load-if (not (and (sc-is value any-reg descriptor-reg)
+ (sc-is result control-stack)))))
(:vop-var vop)
(:save-p :compute-only))
(:info target not-p)
(:policy :fast-safe))
-(eval-when (:compile-toplevel :execute)
-
(defun cost-to-test-types (type-codes)
(+ (* 2 (length type-codes))
(if (> (apply #'max type-codes) lowtag-limit) 7 2)))
-); EVAL-WHEN
-
-;;; FIXME: DEF-TYPE-VOPS and DEF-SIMPLE-TYPE-VOPS are only used in
-;;; this file, so they should be in the EVAL-WHEN above, or otherwise
-;;; tweaked so that they don't appear in the target system.
-
-(defmacro def-type-vops (pred-name check-name ptype error-code
- &rest type-codes)
- (let ((cost (cost-to-test-types (mapcar #'eval type-codes))))
- `(progn
- ,@(when pred-name
- `((define-vop (,pred-name type-predicate)
- (:translate ,pred-name)
- (:generator ,cost
- (test-type value target not-p ,@type-codes)))))
- ,@(when check-name
- `((define-vop (,check-name check-type)
- (:generator ,cost
- (let ((err-lab
- (generate-error-code vop ,error-code value)))
- (test-type value err-lab t ,@type-codes)
- (move result value))))))
- ,@(when ptype
- `((primitive-type-vop ,check-name (:check) ,ptype))))))
-
-(defmacro def-simple-type-vops (pred-name check-name ptype error-code
- &rest type-codes)
- (let ((cost (cost-to-test-types (mapcar #'eval type-codes))))
+(defmacro !define-type-vops (pred-name check-name ptype error-code
+ (&rest type-codes)
+ &key (variant nil variant-p) &allow-other-keys)
+ ;; KLUDGE: UGH. Why do we need this eval? Can't we put this in the
+ ;; expansion?
+ (let* ((cost (cost-to-test-types (mapcar #'eval type-codes)))
+ (prefix (if variant-p
+ (concatenate 'string (string variant) "-")
+ "")))
`(progn
,@(when pred-name
- `((define-vop (,pred-name simple-type-predicate)
- (:translate ,pred-name)
- (:generator ,cost
- (test-type value target not-p ,@type-codes)))))
+ `((define-vop (,pred-name ,(intern (concatenate 'string prefix "TYPE-PREDICATE")))
+ (:translate ,pred-name)
+ (:generator ,cost
+ (test-type value target not-p (,@type-codes))))))
,@(when check-name
- `((define-vop (,check-name simple-check-type)
- (:generator ,cost
- (let ((err-lab
- (generate-error-code vop ,error-code value)))
- (test-type value err-lab t ,@type-codes)
- (move result value))))))
+ `((define-vop (,check-name ,(intern (concatenate 'string prefix "CHECK-TYPE")))
+ (:generator ,cost
+ (let ((err-lab
+ (generate-error-code vop ',error-code value)))
+ (test-type value err-lab t (,@type-codes))
+ (move result value))))))
,@(when ptype
- `((primitive-type-vop ,check-name (:check) ,ptype))))))
-
-(def-simple-type-vops fixnump check-fixnum fixnum object-not-fixnum-error
- even-fixnum-lowtag odd-fixnum-lowtag)
-
-(def-type-vops functionp check-function function
- object-not-function-error fun-pointer-lowtag)
-
-(def-type-vops listp check-list list object-not-list-error
- list-pointer-lowtag)
-
-(def-type-vops %instancep check-instance instance object-not-instance-error
- instance-pointer-lowtag)
-
-(def-type-vops bignump check-bignum bignum
- object-not-bignum-error bignum-type)
-
-(def-type-vops ratiop check-ratio ratio
- object-not-ratio-error ratio-type)
-
-(def-type-vops complexp check-complex complex object-not-complex-error
- complex-type complex-single-float-type complex-double-float-type
- #!+long-float complex-long-float-type)
-
-(def-type-vops complex-rational-p check-complex-rational nil
- object-not-complex-rational-error complex-type)
-
-(def-type-vops complex-float-p check-complex-float nil
- object-not-complex-float-error
- complex-single-float-type complex-double-float-type
- #!+long-float complex-long-float-type)
-
-(def-type-vops complex-single-float-p check-complex-single-float
- complex-single-float object-not-complex-single-float-error
- complex-single-float-type)
-
-(def-type-vops complex-double-float-p check-complex-double-float
- complex-double-float object-not-complex-double-float-error
- complex-double-float-type)
-
-#!+long-float
-(def-type-vops complex-long-float-p check-complex-long-float
- complex-long-float object-not-complex-long-float-error
- complex-long-float-type)
-
-(def-type-vops single-float-p check-single-float single-float
- object-not-single-float-error single-float-type)
-
-(def-type-vops double-float-p check-double-float double-float
- object-not-double-float-error double-float-type)
-
-#!+long-float
-(def-type-vops long-float-p check-long-float long-float
- object-not-long-float-error long-float-type)
-
-(def-type-vops simple-string-p check-simple-string simple-string
- object-not-simple-string-error simple-string-type)
-
-(def-type-vops simple-bit-vector-p check-simple-bit-vector simple-bit-vector
- object-not-simple-bit-vector-error simple-bit-vector-type)
-
-(def-type-vops simple-vector-p check-simple-vector simple-vector
- object-not-simple-vector-error simple-vector-type)
-
-(def-type-vops simple-array-unsigned-byte-2-p
- check-simple-array-unsigned-byte-2
- simple-array-unsigned-byte-2
- object-not-simple-array-unsigned-byte-2-error
- simple-array-unsigned-byte-2-type)
-
-(def-type-vops simple-array-unsigned-byte-4-p
- check-simple-array-unsigned-byte-4
- simple-array-unsigned-byte-4
- object-not-simple-array-unsigned-byte-4-error
- simple-array-unsigned-byte-4-type)
-
-(def-type-vops simple-array-unsigned-byte-8-p
- check-simple-array-unsigned-byte-8
- simple-array-unsigned-byte-8
- object-not-simple-array-unsigned-byte-8-error
- simple-array-unsigned-byte-8-type)
-
-(def-type-vops simple-array-unsigned-byte-16-p
- check-simple-array-unsigned-byte-16
- simple-array-unsigned-byte-16
- object-not-simple-array-unsigned-byte-16-error
- simple-array-unsigned-byte-16-type)
-
-(def-type-vops simple-array-unsigned-byte-32-p
- check-simple-array-unsigned-byte-32
- simple-array-unsigned-byte-32
- object-not-simple-array-unsigned-byte-32-error
- simple-array-unsigned-byte-32-type)
-
-(def-type-vops simple-array-signed-byte-8-p
- check-simple-array-signed-byte-8
- simple-array-signed-byte-8
- object-not-simple-array-signed-byte-8-error
- simple-array-signed-byte-8-type)
-
-(def-type-vops simple-array-signed-byte-16-p
- check-simple-array-signed-byte-16
- simple-array-signed-byte-16
- object-not-simple-array-signed-byte-16-error
- simple-array-signed-byte-16-type)
-
-(def-type-vops simple-array-signed-byte-30-p
- check-simple-array-signed-byte-30
- simple-array-signed-byte-30
- object-not-simple-array-signed-byte-30-error
- simple-array-signed-byte-30-type)
-
-(def-type-vops simple-array-signed-byte-32-p
- check-simple-array-signed-byte-32
- simple-array-signed-byte-32
- object-not-simple-array-signed-byte-32-error
- simple-array-signed-byte-32-type)
-
-(def-type-vops simple-array-single-float-p check-simple-array-single-float
- simple-array-single-float object-not-simple-array-single-float-error
- simple-array-single-float-type)
-
-(def-type-vops simple-array-double-float-p check-simple-array-double-float
- simple-array-double-float object-not-simple-array-double-float-error
- simple-array-double-float-type)
-
-#!+long-float
-(def-type-vops simple-array-long-float-p check-simple-array-long-float
- simple-array-long-float object-not-simple-array-long-float-error
- simple-array-long-float-type)
-
-(def-type-vops simple-array-complex-single-float-p
- check-simple-array-complex-single-float
- simple-array-complex-single-float
- object-not-simple-array-complex-single-float-error
- simple-array-complex-single-float-type)
-
-(def-type-vops simple-array-complex-double-float-p
- check-simple-array-complex-double-float
- simple-array-complex-double-float
- object-not-simple-array-complex-double-float-error
- simple-array-complex-double-float-type)
-
-#!+long-float
-(def-type-vops simple-array-complex-long-float-p
- check-simple-array-complex-long-float
- simple-array-complex-long-float
- object-not-simple-array-complex-long-float-error
- simple-array-complex-long-float-type)
-
-(def-type-vops base-char-p check-base-char base-char
- object-not-base-char-error base-char-type)
-
-(def-type-vops system-area-pointer-p check-system-area-pointer
- system-area-pointer object-not-sap-error sap-type)
-
-(def-type-vops weak-pointer-p check-weak-pointer weak-pointer
- object-not-weak-pointer-error weak-pointer-type)
-
-(def-type-vops code-component-p nil nil nil
- code-header-type)
-
-(def-type-vops lra-p nil nil nil
- return-pc-header-type)
-
-(def-type-vops fdefn-p nil nil nil
- fdefn-type)
-
-(def-type-vops funcallable-instance-p nil nil nil
- funcallable-instance-header-type)
-
-(def-type-vops array-header-p nil nil nil
- simple-array-type complex-string-type complex-bit-vector-type
- complex-vector-type complex-array-type)
-
-(def-type-vops stringp check-string nil object-not-string-error
- simple-string-type complex-string-type)
-
-(def-type-vops bit-vector-p check-bit-vector nil object-not-bit-vector-error
- simple-bit-vector-type complex-bit-vector-type)
-
-(def-type-vops vectorp check-vector nil object-not-vector-error
- simple-string-type simple-bit-vector-type simple-vector-type
- simple-array-unsigned-byte-2-type simple-array-unsigned-byte-4-type
- simple-array-unsigned-byte-8-type simple-array-unsigned-byte-16-type
- simple-array-unsigned-byte-32-type
- simple-array-signed-byte-8-type simple-array-signed-byte-16-type
- simple-array-signed-byte-30-type simple-array-signed-byte-32-type
- simple-array-single-float-type simple-array-double-float-type
- #!+long-float simple-array-long-float-type
- simple-array-complex-single-float-type
- simple-array-complex-double-float-type
- #!+long-float simple-array-complex-long-float-type
- complex-string-type complex-bit-vector-type complex-vector-type)
-
-;;; Note that this "type VOP" is sort of an oddball; it doesn't so
-;;; much test for a Lisp-level type as just expose a low-level type
-;;; code at the Lisp level. It is used as a building block to help us
-;;; to express things like the test for (TYPEP FOO '(VECTOR T))
-;;; efficiently in Lisp code, but it doesn't correspond to any type
-;;; expression which would actually occur in reasonable application
-;;; code. (Common Lisp doesn't have any natural way of expressing this
-;;; type.) Thus, there's no point in building up the full machinery of
-;;; associated backend type predicates and so forth as we do for
-;;; ordinary type VOPs.
-(def-type-vops complex-vector-p check-complex-vector nil object-not-complex-vector-error
- complex-vector-type)
-
-(def-type-vops simple-array-p check-simple-array nil object-not-simple-array-error
- simple-array-type simple-string-type simple-bit-vector-type
- simple-vector-type simple-array-unsigned-byte-2-type
- simple-array-unsigned-byte-4-type simple-array-unsigned-byte-8-type
- simple-array-unsigned-byte-16-type simple-array-unsigned-byte-32-type
- simple-array-signed-byte-8-type simple-array-signed-byte-16-type
- simple-array-signed-byte-30-type simple-array-signed-byte-32-type
- simple-array-single-float-type simple-array-double-float-type
- #!+long-float simple-array-long-float-type
- simple-array-complex-single-float-type
- simple-array-complex-double-float-type
- #!+long-float simple-array-complex-long-float-type)
-
-(def-type-vops arrayp check-array nil object-not-array-error
- simple-array-type simple-string-type simple-bit-vector-type
- simple-vector-type simple-array-unsigned-byte-2-type
- simple-array-unsigned-byte-4-type simple-array-unsigned-byte-8-type
- simple-array-unsigned-byte-16-type simple-array-unsigned-byte-32-type
- simple-array-signed-byte-8-type simple-array-signed-byte-16-type
- simple-array-signed-byte-30-type simple-array-signed-byte-32-type
- simple-array-single-float-type simple-array-double-float-type
- #!+long-float simple-array-long-float-type
- simple-array-complex-single-float-type
- simple-array-complex-double-float-type
- #!+long-float simple-array-complex-long-float-type
- complex-string-type complex-bit-vector-type complex-vector-type
- complex-array-type)
-
-(def-type-vops numberp check-number nil object-not-number-error
- even-fixnum-lowtag odd-fixnum-lowtag bignum-type ratio-type
- single-float-type double-float-type #!+long-float long-float-type complex-type
- complex-single-float-type complex-double-float-type
- #!+long-float complex-long-float-type)
-
-(def-type-vops rationalp check-rational nil object-not-rational-error
- even-fixnum-lowtag odd-fixnum-lowtag ratio-type bignum-type)
-
-(def-type-vops integerp check-integer nil object-not-integer-error
- even-fixnum-lowtag odd-fixnum-lowtag bignum-type)
-
-(def-type-vops floatp check-float nil object-not-float-error
- single-float-type double-float-type #!+long-float long-float-type)
-
-(def-type-vops realp check-real nil object-not-real-error
- even-fixnum-lowtag odd-fixnum-lowtag ratio-type bignum-type
- single-float-type double-float-type #!+long-float long-float-type)
+ `((primitive-type-vop ,check-name (:check) ,ptype))))))
\f
;;;; other integer ranges
+(define-vop (fixnump/unsigned-byte-32 simple-type-predicate)
+ (:args (value :scs (unsigned-reg)))
+ (:info)
+ (:conditional :be)
+ (:arg-types unsigned-num)
+ (:translate fixnump)
+ (:generator 5
+ ;; We could encode this with :Z and SHR, analogously to the signed-byte-32
+ ;; case below -- as we do on x86-64 -- but that costs us an extra
+ ;; register. Compromises...
+ (inst cmp value #.sb!xc:most-positive-fixnum)))
+
+(define-vop (fixnump/signed-byte-32 type-predicate)
+ (:args (value :scs (signed-reg)))
+ (:info)
+ (:conditional :z)
+ (:arg-types signed-num)
+ (:translate fixnump)
+ (:generator 5
+ ;; Hackers Delight, p. 53: signed
+ ;; a <= x <= a + 2^n - 1
+ ;; is equivalent to unsigned
+ ;; ((x-a) >> n) = 0
+ (inst mov eax-tn value)
+ (inst sub eax-tn #.sb!xc:most-negative-fixnum)
+ (inst shr eax-tn #.(integer-length (- sb!xc:most-positive-fixnum
+ sb!xc:most-negative-fixnum)))))
+
;;; A (SIGNED-BYTE 32) can be represented with either fixnum or a bignum with
;;; exactly one digit.
(:translate signed-byte-32-p)
(:generator 45
(multiple-value-bind (yep nope)
- (if not-p
- (values not-target target)
- (values target not-target))
+ (if not-p
+ (values not-target target)
+ (values target not-target))
(generate-fixnum-test value)
(inst jmp :e yep)
- (move eax-tn value)
- (inst and al-tn lowtag-mask)
- (inst cmp al-tn other-pointer-lowtag)
+ (inst lea eax-tn (make-ea :dword :base value
+ :disp (- other-pointer-lowtag)))
+ (inst test al-tn lowtag-mask)
(inst jmp :ne nope)
- (loadw eax-tn value 0 other-pointer-lowtag)
- (inst cmp eax-tn (+ (ash 1 type-bits) bignum-type))
+ (inst cmp (make-ea-for-object-slot value 0 other-pointer-lowtag)
+ (+ (ash 1 n-widetag-bits) bignum-widetag))
(inst jmp (if not-p :ne :e) target))
NOT-TARGET))
(define-vop (check-signed-byte-32 check-type)
(:generator 45
(let ((nope (generate-error-code vop
- object-not-signed-byte-32-error
- value)))
+ 'object-not-signed-byte-32-error
+ value)))
(generate-fixnum-test value)
(inst jmp :e yep)
- (move eax-tn value)
- (inst and al-tn lowtag-mask)
- (inst cmp al-tn other-pointer-lowtag)
+ (inst lea eax-tn (make-ea :dword :base value
+ :disp (- other-pointer-lowtag)))
+ (inst test al-tn lowtag-mask)
(inst jmp :ne nope)
- (loadw eax-tn value 0 other-pointer-lowtag)
- (inst cmp eax-tn (+ (ash 1 type-bits) bignum-type))
+ (inst cmp (make-ea-for-object-slot value 0 other-pointer-lowtag)
+ (+ (ash 1 n-widetag-bits) bignum-widetag))
(inst jmp :ne nope))
YEP
(move result value)))
(:translate unsigned-byte-32-p)
(:generator 45
(let ((not-target (gen-label))
- (single-word (gen-label))
- (fixnum (gen-label)))
+ (single-word (gen-label))
+ (fixnum (gen-label)))
(multiple-value-bind (yep nope)
- (if not-p
- (values not-target target)
- (values target not-target))
- ;; Is it a fixnum?
- (generate-fixnum-test value)
- (move eax-tn value)
- (inst jmp :e fixnum)
-
- ;; If not, is it an other pointer?
- (inst and al-tn lowtag-mask)
- (inst cmp al-tn other-pointer-lowtag)
- (inst jmp :ne nope)
- ;; Get the header.
- (loadw eax-tn value 0 other-pointer-lowtag)
- ;; Is it one?
- (inst cmp eax-tn (+ (ash 1 type-bits) bignum-type))
- (inst jmp :e single-word)
- ;; If it's other than two, we can't be an (unsigned-byte 32)
- (inst cmp eax-tn (+ (ash 2 type-bits) bignum-type))
- (inst jmp :ne nope)
- ;; Get the second digit.
- (loadw eax-tn value (1+ bignum-digits-offset) other-pointer-lowtag)
- ;; All zeros, its an (unsigned-byte 32).
- (inst or eax-tn eax-tn)
- (inst jmp :z yep)
- (inst jmp nope)
-
- (emit-label single-word)
- ;; Get the single digit.
- (loadw eax-tn value bignum-digits-offset other-pointer-lowtag)
-
- ;; positive implies (unsigned-byte 32).
- (emit-label fixnum)
- (inst or eax-tn eax-tn)
- (inst jmp (if not-p :s :ns) target)
-
- (emit-label not-target)))))
+ (if not-p
+ (values not-target target)
+ (values target not-target))
+ ;; Is it a fixnum?
+ (move eax-tn value)
+ (inst test al-tn fixnum-tag-mask)
+ (inst jmp :e fixnum)
+
+ ;; If not, is it an other pointer?
+ (inst and al-tn lowtag-mask)
+ (inst cmp al-tn other-pointer-lowtag)
+ (inst jmp :ne nope)
+ ;; Get the header.
+ (loadw eax-tn value 0 other-pointer-lowtag)
+ ;; Is it one?
+ (inst cmp eax-tn (+ (ash 1 n-widetag-bits) bignum-widetag))
+ (inst jmp :e single-word)
+ ;; If it's other than two, we can't be an (unsigned-byte 32)
+ (inst cmp eax-tn (+ (ash 2 n-widetag-bits) bignum-widetag))
+ (inst jmp :ne nope)
+ ;; Get the second digit.
+ (loadw eax-tn value (1+ bignum-digits-offset) other-pointer-lowtag)
+ ;; All zeros, its an (unsigned-byte 32).
+ (inst test eax-tn eax-tn)
+ (inst jmp :z yep)
+ (inst jmp nope)
+
+ (emit-label single-word)
+ ;; Get the single digit.
+ (loadw eax-tn value bignum-digits-offset other-pointer-lowtag)
+
+ ;; positive implies (unsigned-byte 32).
+ (emit-label fixnum)
+ (inst test eax-tn eax-tn)
+ (inst jmp (if not-p :s :ns) target)
+
+ (emit-label not-target)))))
(define-vop (check-unsigned-byte-32 check-type)
(:generator 45
(let ((nope
- (generate-error-code vop object-not-unsigned-byte-32-error value))
- (yep (gen-label))
- (fixnum (gen-label))
- (single-word (gen-label)))
+ (generate-error-code vop 'object-not-unsigned-byte-32-error value))
+ (yep (gen-label))
+ (fixnum (gen-label))
+ (single-word (gen-label)))
;; Is it a fixnum?
(generate-fixnum-test value)
;; Get the header.
(loadw eax-tn value 0 other-pointer-lowtag)
;; Is it one?
- (inst cmp eax-tn (+ (ash 1 type-bits) bignum-type))
+ (inst cmp eax-tn (+ (ash 1 n-widetag-bits) bignum-widetag))
(inst jmp :e single-word)
;; If it's other than two, we can't be an (unsigned-byte 32)
- (inst cmp eax-tn (+ (ash 2 type-bits) bignum-type))
+ (inst cmp eax-tn (+ (ash 2 n-widetag-bits) bignum-widetag))
(inst jmp :ne nope)
;; Get the second digit.
(loadw eax-tn value (1+ bignum-digits-offset) other-pointer-lowtag)
;; All zeros, its an (unsigned-byte 32).
- (inst or eax-tn eax-tn)
+ (inst test eax-tn eax-tn)
(inst jmp :z yep)
(inst jmp nope)
-
+
(emit-label single-word)
;; Get the single digit.
(loadw eax-tn value bignum-digits-offset other-pointer-lowtag)
;; positive implies (unsigned-byte 32).
(emit-label fixnum)
- (inst or eax-tn eax-tn)
+ (inst test eax-tn eax-tn)
(inst jmp :s nope)
(emit-label yep)
(move result value))))
+
+(defun power-of-two-limit-p (x)
+ (and (fixnump x)
+ (= (logcount (1+ x)) 1)))
+
+(define-vop (test-fixnum-mod-power-of-two)
+ (:args (value :scs (any-reg descriptor-reg
+ unsigned-reg signed-reg
+ immediate)))
+ (:arg-types *
+ (:constant (satisfies power-of-two-limit-p)))
+ (:translate sb!c::fixnum-mod-p)
+ (:conditional :e)
+ (:info hi)
+ (:save-p :compute-only)
+ (:policy :fast-safe)
+ (:generator 4
+ (aver (not (sc-is value immediate)))
+ (let* ((fixnum-hi (if (sc-is value unsigned-reg signed-reg)
+ hi
+ (fixnumize hi))))
+ (inst test value (lognot fixnum-hi)))))
+
+(define-vop (test-fixnum-mod-tagged-unsigned)
+ (:args (value :scs (any-reg descriptor-reg
+ unsigned-reg signed-reg
+ immediate)))
+ (:arg-types (:or tagged-num unsigned-num signed-num)
+ (:constant fixnum))
+ (:translate sb!c::fixnum-mod-p)
+ (:conditional :be)
+ (:info hi)
+ (:save-p :compute-only)
+ (:policy :fast-safe)
+ (:generator 5
+ (aver (not (sc-is value immediate)))
+ (let ((fixnum-hi (if (sc-is value unsigned-reg signed-reg)
+ hi
+ (fixnumize hi))))
+ (inst cmp value fixnum-hi))))
+
+(define-vop (test-fixnum-mod-*)
+ (:args (value :scs (any-reg descriptor-reg)))
+ (:arg-types * (:constant fixnum))
+ (:translate sb!c::fixnum-mod-p)
+ (:conditional)
+ (:info target not-p hi)
+ (:save-p :compute-only)
+ (:policy :fast-safe)
+ (:generator 6
+ (let* ((fixnum-hi (fixnumize hi))
+ (skip (gen-label)))
+ (generate-fixnum-test value)
+ (inst jmp :ne (if not-p target skip))
+ (inst cmp value fixnum-hi)
+ (inst jmp (if not-p :a :be) target)
+ (emit-label skip))))
+
\f
;;;; list/symbol types
;;;
(let ((is-symbol-label (if not-p drop-thru target)))
(inst cmp value nil-value)
(inst jmp :e is-symbol-label)
- (test-type value target not-p symbol-header-type))
+ (test-type value target not-p (symbol-header-widetag)))
DROP-THRU))
(define-vop (check-symbol check-type)
(:generator 12
- (let ((error (generate-error-code vop object-not-symbol-error value)))
+ (let ((error (generate-error-code vop 'object-not-symbol-error value)))
(inst cmp value nil-value)
(inst jmp :e drop-thru)
- (test-type value error t symbol-header-type))
+ (test-type value error t (symbol-header-widetag)))
DROP-THRU
(move result value)))
(let ((is-not-cons-label (if not-p target drop-thru)))
(inst cmp value nil-value)
(inst jmp :e is-not-cons-label)
- (test-type value target not-p list-pointer-lowtag))
+ (test-type value target not-p (list-pointer-lowtag)))
DROP-THRU))
(define-vop (check-cons check-type)
(:generator 8
- (let ((error (generate-error-code vop object-not-cons-error value)))
+ (let ((error (generate-error-code vop 'object-not-cons-error value)))
(inst cmp value nil-value)
(inst jmp :e error)
- (test-type value error t list-pointer-lowtag)
+ (test-type value error t (list-pointer-lowtag))
(move result value))))
-\f
-) ; MACROLET
projects / sbcl.git / blobdiff