X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Ftypetran.lisp;h=c1b19088ae5529a6e36cb3cd6b3362eabd73b97e;hb=2034cb134af58c5998f4e305673af6e2c75bc179;hp=c538f46c30ae63f1601b01684096fcbac951b310;hpb=ca379afc74fe525fd70035546d066de5f5ec874d;p=sbcl.git diff --git a/src/compiler/typetran.lisp b/src/compiler/typetran.lisp index c538f46..c1b1908 100644 --- a/src/compiler/typetran.lisp +++ b/src/compiler/typetran.lisp @@ -58,16 +58,16 @@ ;;; spurious attempts at transformation (and possible repeated ;;; warnings.) (deftransform typep ((object type)) - (unless (constant-continuation-p type) + (unless (constant-lvar-p type) (give-up-ir1-transform "can't open-code test of non-constant type")) - `(typep object ',(continuation-value type))) + `(typep object ',(lvar-value type))) -;;; If the continuation OBJECT definitely is or isn't of the specified +;;; If the lvar OBJECT definitely is or isn't of the specified ;;; type, then return T or NIL as appropriate. Otherwise quietly ;;; GIVE-UP-IR1-TRANSFORM. (defun ir1-transform-type-predicate (object type) - (declare (type continuation object) (type ctype type)) - (let ((otype (continuation-type object))) + (declare (type lvar object) (type ctype type)) + (let ((otype (lvar-type object))) (cond ((not (types-equal-or-intersect otype type)) nil) ((csubtypep otype type) @@ -79,11 +79,11 @@ ;;; Flush %TYPEP tests whose result is known at compile time. (deftransform %typep ((object type)) - (unless (constant-continuation-p type) + (unless (constant-lvar-p type) (give-up-ir1-transform)) (ir1-transform-type-predicate object - (ir1-transform-specifier-type (continuation-value type)))) + (ir1-transform-specifier-type (lvar-value type)))) ;;; This is the IR1 transform for simple type predicates. It checks ;;; whether the single argument is known to (not) be of the @@ -91,7 +91,7 @@ (deftransform fold-type-predicate ((object) * * :node node :defun-only t) (let ((ctype (gethash (leaf-source-name (ref-leaf - (continuation-use + (lvar-uses (basic-combination-fun node)))) *backend-predicate-types*))) (aver ctype) @@ -100,7 +100,7 @@ ;;; If FIND-CLASS is called on a constant class, locate the CLASS-CELL ;;; at load time. (deftransform find-classoid ((name) ((constant-arg symbol)) *) - (let* ((name (continuation-value name)) + (let* ((name (lvar-value name)) (cell (find-classoid-cell name))) `(or (classoid-cell-classoid ',cell) (error "class not yet defined: ~S" name)))) @@ -155,7 +155,6 @@ ;;; binds specified by TYPE. BASE is the name of the base type, for ;;; declaration. We make SAFETY locally 0 to inhibit any checking of ;;; this assertion. -#!-negative-zero-is-not-zero (defun transform-numeric-bound-test (n-object type base) (declare (type numeric-type type)) (let ((low (numeric-type-low type)) @@ -164,55 +163,12 @@ (declare (optimize (safety 0))) (and ,@(when low (if (consp low) - `((> (the ,base ,n-object) ,(car low))) - `((>= (the ,base ,n-object) ,low)))) + `((> (truly-the ,base ,n-object) ,(car low))) + `((>= (truly-the ,base ,n-object) ,low)))) ,@(when high (if (consp high) - `((< (the ,base ,n-object) ,(car high))) - `((<= (the ,base ,n-object) ,high)))))))) - -#!+negative-zero-is-not-zero -(defun transform-numeric-bound-test (n-object type base) - (declare (type numeric-type type)) - (let ((low (numeric-type-low type)) - (high (numeric-type-high type)) - (float-type-p (csubtypep type (specifier-type 'float))) - (x (gensym)) - (y (gensym))) - `(locally - (declare (optimize (safety 0))) - (and ,@(when low - (if (consp low) - `((let ((,x (the ,base ,n-object)) - (,y ,(car low))) - ,(if (not float-type-p) - `(> ,x ,y) - `(if (and (zerop ,x) (zerop ,y)) - (> (float-sign ,x) (float-sign ,y)) - (> ,x ,y))))) - `((let ((,x (the ,base ,n-object)) - (,y ,low)) - ,(if (not float-type-p) - `(>= ,x ,y) - `(if (and (zerop ,x) (zerop ,y)) - (>= (float-sign ,x) (float-sign ,y)) - (>= ,x ,y))))))) - ,@(when high - (if (consp high) - `((let ((,x (the ,base ,n-object)) - (,y ,(car high))) - ,(if (not float-type-p) - `(< ,x ,y) - `(if (and (zerop ,x) (zerop ,y)) - (< (float-sign ,x) (float-sign ,y)) - (< ,x ,y))))) - `((let ((,x (the ,base ,n-object)) - (,y ,high)) - ,(if (not float-type-p) - `(<= ,x ,y) - `(if (and (zerop ,x) (zerop ,y)) - (<= (float-sign ,x) (float-sign ,y)) - (<= ,x ,y))))))))))) + `((< (truly-the ,base ,n-object) ,(car high))) + `((<= (truly-the ,base ,n-object) ,high)))))))) ;;; Do source transformation of a test of a known numeric type. We can ;;; assume that the type doesn't have a corresponding predicate, since @@ -233,7 +189,11 @@ (defun source-transform-numeric-typep (object type) (let* ((class (numeric-type-class type)) (base (ecase class - (integer (containing-integer-type type)) + (integer (containing-integer-type + (if (numeric-type-complexp type) + (modified-numeric-type type + :complexp :real) + type))) (rational 'rational) (float (or (numeric-type-format type) 'float)) ((nil) 'real)))) @@ -244,8 +204,8 @@ ,(transform-numeric-bound-test n-object type base))) (:complex `(and (complexp ,n-object) - ,(once-only ((n-real `(realpart (the complex ,n-object))) - (n-imag `(imagpart (the complex ,n-object)))) + ,(once-only ((n-real `(realpart (truly-the complex ,n-object))) + (n-imag `(imagpart (truly-the complex ,n-object)))) `(progn ,n-imag ; ignorable (and (typep ,n-real ',base) @@ -264,8 +224,8 @@ (let ((spec (hairy-type-specifier type))) (cond ((unknown-type-p type) (when (policy *lexenv* (> speed inhibit-warnings)) - (compiler-note "can't open-code test of unknown type ~S" - (type-specifier type))) + (compiler-notify "can't open-code test of unknown type ~S" + (type-specifier type))) `(%typep ,object ',spec)) (t (ecase (first spec) @@ -283,23 +243,26 @@ ;;; Do source transformation for TYPEP of a known union type. If a ;;; union type contains LIST, then we pull that out and make it into a -;;; single LISTP call. Note that if SYMBOL is in the union, then LIST -;;; will be a subtype even without there being any (member NIL). We -;;; just drop through to the general code in this case, rather than -;;; trying to optimize it. +;;; single LISTP call. Note that if SYMBOL is in the union, then LIST +;;; will be a subtype even without there being any (member NIL). We +;;; currently just drop through to the general code in this case, +;;; rather than trying to optimize it (but FIXME CSR 2004-04-05: it +;;; wouldn't be hard to optimize it after all). (defun source-transform-union-typep (object type) (let* ((types (union-type-types type)) - (ltype (specifier-type 'list)) - (mtype (find-if #'member-type-p types))) - (if (and mtype (csubtypep ltype type)) - (let ((members (member-type-members mtype))) - (once-only ((n-obj object)) - `(or (listp ,n-obj) - (typep ,n-obj - '(or ,@(mapcar #'type-specifier - (remove (specifier-type 'cons) - (remove mtype types))) - (member ,@(remove nil members))))))) + (type-cons (specifier-type 'cons)) + (mtype (find-if #'member-type-p types)) + (members (when mtype (member-type-members mtype)))) + (if (and mtype + (memq nil members) + (memq type-cons types)) + (once-only ((n-obj object)) + `(or (listp ,n-obj) + (typep ,n-obj + '(or ,@(mapcar #'type-specifier + (remove type-cons + (remove mtype types))) + (member ,@(remove nil members)))))) (once-only ((n-obj object)) `(or ,@(mapcar (lambda (x) `(typep ,n-obj ',(type-specifier x))) @@ -316,10 +279,8 @@ (defun source-transform-cons-typep (object type) (let* ((car-type (cons-type-car-type type)) (cdr-type (cons-type-cdr-type type))) - (let ((car-test-p (not (or (type= car-type *wild-type*) - (type= car-type (specifier-type t))))) - (cdr-test-p (not (or (type= cdr-type *wild-type*) - (type= cdr-type (specifier-type t)))))) + (let ((car-test-p (not (type= car-type *universal-type*))) + (cdr-test-p (not (type= cdr-type *universal-type*)))) (if (and (not car-test-p) (not cdr-test-p)) `(consp ,object) (once-only ((n-obj object)) @@ -331,6 +292,21 @@ `((typep (cdr ,n-obj) ',(type-specifier cdr-type)))))))))) +(defun source-transform-character-set-typep (object type) + (let ((pairs (character-set-type-pairs type))) + (if (and (= (length pairs) 1) + (= (caar pairs) 0) + (= (cdar pairs) (1- sb!xc:char-code-limit))) + `(characterp ,object) + (once-only ((n-obj object)) + (let ((n-code (gensym "CODE"))) + `(and (characterp ,n-obj) + (let ((,n-code (sb!xc:char-code ,n-obj))) + (or + ,@(loop for pair in pairs + collect + `(<= ,(car pair) ,n-code ,(cdr pair))))))))))) + ;;; Return the predicate and type from the most specific entry in ;;; *TYPE-PREDICATES* that is a supertype of TYPE. (defun find-supertype-predicate (type) @@ -392,11 +368,11 @@ ;;; and signal an error if so. Otherwise, look up the indirect ;;; class-cell and call CLASS-CELL-TYPEP at runtime. (deftransform %instance-typep ((object spec) (* *) * :node node) - (aver (constant-continuation-p spec)) - (let* ((spec (continuation-value spec)) + (aver (constant-lvar-p spec)) + (let* ((spec (lvar-value spec)) (class (specifier-type spec)) (name (classoid-name class)) - (otype (continuation-type object)) + (otype (lvar-type object)) (layout (let ((res (info :type :compiler-layout name))) (if (and res (not (layout-invalid res))) res @@ -410,7 +386,7 @@ ;; If not properly named, error. ((not (and name (eq (find-classoid name) class))) (compiler-error "can't compile TYPEP of anonymous or undefined ~ - class:~% ~S" + class:~% ~S" class)) (t ;; Delay the type transform to give type propagation a chance. @@ -495,7 +471,7 @@ ;; KLUDGE: It looks bad to only do this on explicitly quoted forms, ;; since that would overlook other kinds of constants. But it turns ;; out that the DEFTRANSFORM for TYPEP detects any constant - ;; continuation, transforms it into a quoted form, and gives this + ;; lvar, transforms it into a quoted form, and gives this ;; source transform another chance, so it all works out OK, in a ;; weird roundabout way. -- WHN 2001-03-18 (if (and (consp spec) (eq (car spec) 'quote)) @@ -532,6 +508,8 @@ (source-transform-array-typep object type)) (cons-type (source-transform-cons-typep object type)) + (character-set-type + (source-transform-character-set-typep object type)) (t nil)) `(%typep ,object ,spec))) (values nil t))) @@ -539,14 +517,14 @@ ;;;; coercion (deftransform coerce ((x type) (* *) * :node node) - (unless (constant-continuation-p type) + (unless (constant-lvar-p type) (give-up-ir1-transform)) - (let ((tspec (ir1-transform-specifier-type (continuation-value type)))) - (if (csubtypep (continuation-type x) tspec) + (let ((tspec (ir1-transform-specifier-type (lvar-value type)))) + (if (csubtypep (lvar-type x) tspec) 'x ;; Note: The THE here makes sure that specifiers like ;; (SINGLE-FLOAT 0.0 1.0) can raise a TYPE-ERROR. - `(the ,(continuation-value type) + `(the ,(lvar-value type) ,(cond ((csubtypep tspec (specifier-type 'double-float)) '(%double-float x))