X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86%2Ftype-vops.lisp;h=fd4b9d0a83489a75e1bec65076937d682efd894f;hb=49ab16a1ebe3184cebd6a7954a113f934278b715;hp=77eb83142238022b6a8450da108299497ee38d05;hpb=cea4896b2482b7b2b429c1631d774b4cfbc0efba;p=sbcl.git diff --git a/src/compiler/x86/type-vops.lisp b/src/compiler/x86/type-vops.lisp index 77eb831..fd4b9d0 100644 --- a/src/compiler/x86/type-vops.lisp +++ b/src/compiler/x86/type-vops.lisp @@ -13,115 +13,8 @@ ;;;; test generation utilities -(eval-when (:compile-toplevel :execute) - -(defparameter immediate-types - (list unbound-marker-type base-char-type)) - -(defparameter function-header-types - (list funcallable-instance-header-type - byte-code-function-type byte-code-closure-type - function-header-type closure-function-header-type - closure-header-type)) - -(defun canonicalize-headers (headers) - (collect ((results)) - (let ((start nil) - (prev nil) - (delta (- other-immediate-1-type other-immediate-0-type))) - (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-type type-codes) - (member odd-fixnum-type 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 function-header-types) - (if (subsetp headers function-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-type) - (= x odd-fixnum-type))) - 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) @@ -137,104 +30,123 @@ ;; 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 function-pointer-type other-pointer-type))) - (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) - (let ((lowtag (if function-p function-pointer-type other-pointer-type))) - (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)))))))) + &optional (drop-through (gen-label))) + (let ((lowtag (if function-p fun-pointer-lowtag other-pointer-lowtag))) + (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)))) ;;;; type checking and testing @@ -255,12 +167,12 @@ (:info target not-p) (:policy :fast-safe)) -;;; Simpler VOP that don't need a temporary register. +;;; simpler VOP that don't need a temporary register (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)) @@ -270,315 +182,65 @@ (: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)))) +(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 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 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)))))) - -(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)))) - `(progn - ,@(when pred-name - `((define-vop (,pred-name simple-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)))))) - ,@(when ptype - `((primitive-type-vop ,check-name (:check) ,ptype)))))) - -(def-simple-type-vops fixnump check-fixnum fixnum object-not-fixnum-error - even-fixnum-type odd-fixnum-type) - -(def-type-vops functionp check-function function - object-not-function-error function-pointer-type) - -(def-type-vops listp check-list list object-not-list-error - list-pointer-type) - -(def-type-vops %instancep check-instance instance object-not-instance-error - instance-pointer-type) - -(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 nil check-function-or-symbol nil - object-not-function-or-symbol-error - function-pointer-type symbol-header-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-type odd-fixnum-type 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-type odd-fixnum-type ratio-type bignum-type) - -(def-type-vops integerp check-integer nil object-not-integer-error - even-fixnum-type odd-fixnum-type 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-type odd-fixnum-type ratio-type bignum-type - single-float-type double-float-type #!+long-float long-float-type) + `((primitive-type-vop ,check-name (:check) ,ptype)))))) ;;;; 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. @@ -586,93 +248,92 @@ (: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-type) + (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-type) - (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-type) + (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-type) - (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))) -;;; An (unsigned-byte 32) can be represented with either a positive fixnum, a -;;; bignum with exactly one positive digit, or a bignum with exactly two digits -;;; and the second digit all zeros. - +;;; An (unsigned-byte 32) can be represented with either a positive +;;; fixnum, a bignum with exactly one positive digit, or a bignum with +;;; exactly two digits and the second digit all zeros. (define-vop (unsigned-byte-32-p type-predicate) (: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-type) - (inst jmp :ne nope) - ;; Get the header. - (loadw eax-tn value 0 other-pointer-type) - ;; 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-type) - ;; 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-type) - - ;; 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) @@ -681,34 +342,92 @@ ;; If not, is it an other pointer? (inst and al-tn lowtag-mask) - (inst cmp al-tn other-pointer-type) + (inst cmp al-tn other-pointer-lowtag) (inst jmp :ne nope) ;; Get the header. - (loadw eax-tn value 0 other-pointer-type) + (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-type) + (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-type) + (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)))) + ;;;; list/symbol types ;;; @@ -721,15 +440,15 @@ (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))) @@ -739,15 +458,13 @@ (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-type)) + (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-type) + (test-type value error t (list-pointer-lowtag)) (move result value)))) - -) ; MACROLET