;; 2002-08-21
*wild-type*)))
+(defun extract-declared-element-type (array)
+ (let ((type (continuation-type array)))
+ (if (array-type-p type)
+ (array-type-element-type type)
+ *wild-type*)))
+
;;; The ``new-value'' for array setters must fit in the array, and the
;;; return type is going to be the same as the new-value for SETF
;;; functions.
(defoptimizer (aref derive-type) ((array &rest indices) node)
(assert-array-rank array (length indices))
- ;; If the node continuation has a single use then assert its type.
- (let ((cont (node-cont node)))
- (when (= (length (find-uses cont)) 1)
- (assert-continuation-type cont (extract-upgraded-element-type array)
- (lexenv-policy (node-lexenv node)))))
(extract-upgraded-element-type array))
(defoptimizer (%aset derive-type) ((array &rest stuff))
`(,(if simple 'simple-array 'array)
,(cond ((not element-type) t)
((constant-continuation-p element-type)
- (continuation-value element-type))
+ (let ((ctype (careful-specifier-type
+ (continuation-value element-type))))
+ (cond
+ ((or (null ctype) (unknown-type-p ctype)) '*)
+ (t (sb!xc:upgraded-array-element-type
+ (continuation-value element-type))))))
(t
'*))
,(cond ((constant-continuation-p dims)
(let* ((val (continuation-value dims))
(cdims (if (listp val) val (list val))))
- (if (or simple (/= (length cdims) 1))
+ (if simple
cdims
- '(*))))
+ (length cdims))))
((csubtypep (continuation-type dims)
(specifier-type 'integer))
'(*))
;;; Just convert it into a MAKE-ARRAY.
(deftransform make-string ((length &key
- (element-type 'base-char)
+ (element-type 'character)
(initial-element
#.*default-init-char-form*)))
- '(make-array (the index length)
- :element-type element-type
- :initial-element initial-element))
-
-(defstruct (specialized-array-element-type-properties
- (:conc-name saetp-)
- (:constructor !make-saetp (ctype
- initial-element-default
- n-bits
- typecode
- &key
- (n-pad-elements 0)))
- (:copier nil))
- ;; the element type, e.g. #<BUILT-IN-CLASS BASE-CHAR (sealed)> or
- ;; #<SB-KERNEL:NUMERIC-TYPE (UNSIGNED-BYTE 4)>
- (ctype (missing-arg) :type ctype :read-only t)
- ;; what we get when the low-level vector-creation logic zeroes all
- ;; the bits (which also serves as the default value of MAKE-ARRAY's
- ;; :INITIAL-ELEMENT keyword)
- (initial-element-default (missing-arg) :read-only t)
- ;; how many bits per element
- (n-bits (missing-arg) :type index :read-only t)
- ;; the low-level type code
- (typecode (missing-arg) :type index :read-only t)
- ;; the number of extra elements we use at the end of the array for
- ;; low level hackery (e.g., one element for arrays of BASE-CHAR,
- ;; which is used for a fixed #\NULL so that when we call out to C
- ;; we don't need to cons a new copy)
- (n-pad-elements (missing-arg) :type index :read-only t))
-
-(defparameter *specialized-array-element-type-properties*
- (map 'simple-vector
- (lambda (args)
- (destructuring-bind (type-spec &rest rest) args
- (let ((ctype (specifier-type type-spec)))
- (apply #'!make-saetp ctype rest))))
- `(;; Erm. Yeah. There aren't a lot of things that make sense
- ;; for an initial element for (ARRAY NIL). -- CSR, 2002-03-07
- (nil '#:mu 0 ,sb!vm:simple-array-nil-widetag)
- (base-char ,(code-char 0) 8 ,sb!vm:simple-string-widetag
- ;; (SIMPLE-STRINGs are stored with an extra trailing
- ;; #\NULL for convenience in calling out to C.)
- :n-pad-elements 1)
- (single-float 0.0f0 32 ,sb!vm:simple-array-single-float-widetag)
- (double-float 0.0d0 64 ,sb!vm:simple-array-double-float-widetag)
- #!+long-float (long-float 0.0L0 #!+x86 96 #!+sparc 128
- ,sb!vm:simple-array-long-float-widetag)
- (bit 0 1 ,sb!vm:simple-bit-vector-widetag)
- ;; KLUDGE: The fact that these UNSIGNED-BYTE entries come
- ;; before their SIGNED-BYTE partners is significant in the
- ;; implementation of the compiler; some of the cross-compiler
- ;; code (see e.g. COERCE-TO-SMALLEST-ELTYPE in
- ;; src/compiler/debug-dump.lisp) attempts to create an array
- ;; specialized on (UNSIGNED-BYTE FOO), where FOO could be 7;
- ;; (UNSIGNED-BYTE 7) is SUBTYPEP (SIGNED-BYTE 8), so if we're
- ;; not careful we could get the wrong specialized array when
- ;; we try to FIND-IF, below. -- CSR, 2002-07-08
- ((unsigned-byte 2) 0 2 ,sb!vm:simple-array-unsigned-byte-2-widetag)
- ((unsigned-byte 4) 0 4 ,sb!vm:simple-array-unsigned-byte-4-widetag)
- ((unsigned-byte 8) 0 8 ,sb!vm:simple-array-unsigned-byte-8-widetag)
- ((unsigned-byte 16) 0 16 ,sb!vm:simple-array-unsigned-byte-16-widetag)
- ((unsigned-byte 32) 0 32 ,sb!vm:simple-array-unsigned-byte-32-widetag)
- ((signed-byte 8) 0 8 ,sb!vm:simple-array-signed-byte-8-widetag)
- ((signed-byte 16) 0 16 ,sb!vm:simple-array-signed-byte-16-widetag)
- ((signed-byte 30) 0 32 ,sb!vm:simple-array-signed-byte-30-widetag)
- ((signed-byte 32) 0 32 ,sb!vm:simple-array-signed-byte-32-widetag)
- ((complex single-float) #C(0.0f0 0.0f0) 64
- ,sb!vm:simple-array-complex-single-float-widetag)
- ((complex double-float) #C(0.0d0 0.0d0) 128
- ,sb!vm:simple-array-complex-double-float-widetag)
- #!+long-float ((complex long-float) #C(0.0L0 0.0L0)
- #!+x86 192 #!+sparc 256
- ,sb!vm:simple-array-complex-long-float-widetag)
- (t 0 32 ,sb!vm:simple-vector-widetag))))
+ `(the simple-string (make-array (the index length)
+ :element-type element-type
+ ,@(when initial-element
+ '(:initial-element initial-element)))))
(deftransform make-array ((dims &key initial-element element-type
adjustable fill-pointer)
(continuation-value element-type))))
(eltype-type (ir1-transform-specifier-type eltype))
(saetp (find-if (lambda (saetp)
- (csubtypep eltype-type (saetp-ctype saetp)))
- *specialized-array-element-type-properties*))
+ (csubtypep eltype-type (sb!vm:saetp-ctype saetp)))
+ sb!vm:*specialized-array-element-type-properties*))
(creation-form `(make-array dims
- :element-type ',(type-specifier (saetp-ctype saetp))
+ :element-type ',(type-specifier (sb!vm:saetp-ctype saetp))
,@(when fill-pointer
'(:fill-pointer fill-pointer))
,@(when adjustable
(cond ((and (constant-continuation-p initial-element)
(eql (continuation-value initial-element)
- (saetp-initial-element-default saetp)))
+ (sb!vm:saetp-initial-element-default saetp)))
creation-form)
(t
;; error checking for target, disabled on the host because
(when (constant-continuation-p initial-element)
(let ((value (continuation-value initial-element)))
(cond
- ((not (ctypep value (saetp-ctype saetp)))
+ ((not (ctypep value (sb!vm:saetp-ctype saetp)))
;; this case will cause an error at runtime, so we'd
;; better WARN about it now.
(compiler-warn "~@<~S is not a ~S (which is the ~
UPGRADED-ARRAY-ELEMENT-TYPE of ~S).~@:>"
value
- (type-specifier (saetp-ctype saetp))
+ (type-specifier (sb!vm:saetp-ctype saetp))
eltype))
((not (ctypep value eltype-type))
;; this case will not cause an error at runtime, but
(len (if (constant-continuation-p length)
(continuation-value length)
'*))
- (result-type-spec `(simple-array ,eltype (,len)))
(eltype-type (ir1-transform-specifier-type eltype))
+ (result-type-spec
+ `(simple-array
+ ,(if (unknown-type-p eltype-type)
+ (give-up-ir1-transform
+ "ELEMENT-TYPE is an unknown type: ~S" eltype)
+ (sb!xc:upgraded-array-element-type eltype))
+ (,len)))
(saetp (find-if (lambda (saetp)
- (csubtypep eltype-type (saetp-ctype saetp)))
- *specialized-array-element-type-properties*)))
+ (csubtypep eltype-type (sb!vm:saetp-ctype saetp)))
+ sb!vm:*specialized-array-element-type-properties*)))
(unless saetp
(give-up-ir1-transform
"cannot open-code creation of ~S" result-type-spec))
#-sb-xc-host
- (unless (csubtypep (ctype-of (saetp-initial-element-default saetp))
+ (unless (csubtypep (ctype-of (sb!vm:saetp-initial-element-default saetp))
eltype-type)
;; This situation arises e.g. in (MAKE-ARRAY 4 :ELEMENT-TYPE
;; '(INTEGER 1 5)) ANSI's definition of MAKE-ARRAY says "If
;; he writes code:-), we'll signal a STYLE-WARNING in case he
;; didn't realize this.
(compiler-style-warn "The default initial element ~S is not a ~S."
- (saetp-initial-element-default saetp)
+ (sb!vm:saetp-initial-element-default saetp)
eltype))
- (let* ((n-bits-per-element (saetp-n-bits saetp))
- (typecode (saetp-typecode saetp))
- (n-pad-elements (saetp-n-pad-elements saetp))
+ (let* ((n-bits-per-element (sb!vm:saetp-n-bits saetp))
+ (typecode (sb!vm:saetp-typecode saetp))
+ (n-pad-elements (sb!vm:saetp-n-pad-elements saetp))
(padded-length-form (if (zerop n-pad-elements)
'length
`(+ length ,n-pad-elements)))
(rank (length dims))
(spec `(simple-array
,(cond ((null element-type) t)
- ((constant-continuation-p element-type)
- (continuation-value element-type))
+ ((and (constant-continuation-p element-type)
+ (ir1-transform-specifier-type
+ (continuation-value element-type)))
+ (sb!xc:upgraded-array-element-type
+ (continuation-value element-type)))
(t '*))
,(make-list rank :initial-element '*))))
`(let ((header (make-array-header sb!vm:simple-array-widetag ,rank)))
;;; Primitive used to verify indices into arrays. If we can tell at
;;; compile-time or we are generating unsafe code, don't bother with
;;; the VOP.
-(deftransform %check-bound ((array dimension index))
- (unless (constant-continuation-p dimension)
- (give-up-ir1-transform))
- (let ((dim (continuation-value dimension)))
- `(the (integer 0 ,dim) index)))
-(deftransform %check-bound ((array dimension index) * *
- :policy (and (> speed safety) (= safety 0)))
- 'index)
+(deftransform %check-bound ((array dimension index) * * :node node)
+ (cond ((policy node (and (> speed safety) (= safety 0)))
+ 'index)
+ ((not (constant-continuation-p dimension))
+ (give-up-ir1-transform))
+ (t
+ (let ((dim (continuation-value dimension)))
+ `(the (integer 0 (,dim)) index)))))
\f
;;;; WITH-ARRAY-DATA
(make-array (length bit-array-1) :element-type 'bit)))
;; If result is T, make it the first arg.
(deftransform ,fun ((bit-array-1 bit-array-2 result-bit-array)
- (bit-vector bit-vector (member t)) *)
+ (bit-vector bit-vector (eql t)) *)
`(,',fun bit-array-1 bit-array-2 bit-array-1)))))
(def bit-and)
(def bit-ior)
'(bit-not bit-array-1
(make-array (length bit-array-1) :element-type 'bit)))
(deftransform bit-not ((bit-array-1 result-bit-array)
- (bit-vector (constant-arg t)))
+ (bit-vector (eql t)))
'(bit-not bit-array-1 bit-array-1))
-;;; FIXME: What does (CONSTANT-ARG T) mean? Is it the same thing
-;;; as (CONSTANT-ARG (MEMBER T)), or does it mean any constant
-;;; value?
\f
;;; Pick off some constant cases.
-(deftransform array-header-p ((array) (array))
+(defoptimizer (array-header-p derive-type) ((array))
(let ((type (continuation-type array)))
- (unless (array-type-p type)
- (give-up-ir1-transform))
- (let ((dims (array-type-dimensions type)))
- (cond ((csubtypep type (specifier-type '(simple-array * (*))))
- ;; no array header
- nil)
- ((and (listp dims) (/= (length dims) 1))
- ;; multi-dimensional array, will have a header
- t)
- (t
- (give-up-ir1-transform))))))
+ (cond ((not (array-type-p type))
+ nil)
+ (t
+ (let ((dims (array-type-dimensions type)))
+ (cond ((csubtypep type (specifier-type '(simple-array * (*))))
+ ;; no array header
+ (specifier-type 'null))
+ ((and (listp dims) (/= (length dims) 1))
+ ;; multi-dimensional array, will have a header
+ (specifier-type '(eql t)))
+ (t
+ nil)))))))
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