(or end length)
(sequence-bounding-indices-bad-error vector start end)))))
-(defun specialized-list-seek-function-name (function-name key-functions variant)
+(defun specialized-list-seek-function-name (function-name key-functions &optional variant)
(or (find-symbol (with-output-to-string (s)
;; Write "%NAME-FUN1-FUN2-FUN3", etc. Not only is
;; this ever so slightly faster then FORMAT, this
(defun transform-list-item-seek (name item list key test test-not node)
;; If TEST is EQL, drop it.
- (when (and test (lvar-for-named-function test 'eql))
+ (when (and test (lvar-fun-is test '(eql)))
(setf test nil))
;; Ditto for KEY IDENTITY.
- (when (and key (lvar-for-named-function key 'identity))
+ (when (and key (lvar-fun-is key '(identity)))
(setf key nil))
;; Key can legally be NIL, but if it's NIL for sure we pretend it's
;; not there at all. If it might be NIL, make up a form to that
#'identity)))
(t
(values key '(%coerce-callable-to-fun key))))))
- (let* ((c-test (cond ((and test (lvar-for-named-function test 'eq))
+ (let* ((c-test (cond ((and test (lvar-fun-is test '(eq)))
(setf test nil)
'eq)
((and (not test) (not test-not))
(when tail
`(if (let ((this ',(car tail)))
,(ecase name
- (assoc
- `(and this (let ((target (car this)))
- ,test-expr)))
+ ((assoc rassoc)
+ (let ((cxx (if (eq name 'assoc) 'car 'cdr)))
+ `(and this (let ((target (,cxx this)))
+ ,test-expr))))
(member
`(let ((target this))
,test-expr))))
',(ecase name
- (assoc (car tail))
+ ((assoc rassoc) (car tail))
(member tail))
,(open-code (cdr tail)))))
(ensure-fun (fun)
`(%coerce-callable-to-fun ,fun))))
(let* ((cp (constant-lvar-p list))
(c-list (when cp (lvar-value list))))
- (cond ((and cp c-list (member name '(assoc member))
+ (cond ((and cp c-list (member name '(assoc rassoc member))
(policy node (>= speed space)))
`(let ,(mapcar (lambda (fun) `(,fun ,(ensure-fun fun))) funs)
,(open-code c-list)))
`(,(specialized-list-seek-function-name name funs c-test)
item list ,@(mapcar #'ensure-fun funs)))))))))
-(deftransform member ((item list &key key test test-not) * * :node node)
- (transform-list-item-seek 'member item list key test test-not node))
-
-(deftransform assoc ((item list &key key test test-not) * * :node node)
- (transform-list-item-seek 'assoc item list key test test-not node))
+(defun transform-list-pred-seek (name pred list key node)
+ ;; If KEY is IDENTITY, drop it.
+ (when (and key (lvar-fun-is key '(identity)))
+ (setf key nil))
+ ;; Key can legally be NIL, but if it's NIL for sure we pretend it's
+ ;; not there at all. If it might be NIL, make up a form to that
+ ;; ensures it is a function.
+ (multiple-value-bind (key key-form)
+ (when key
+ (let ((key-type (lvar-type key))
+ (null-type (specifier-type 'null)))
+ (cond ((csubtypep key-type null-type)
+ (values nil nil))
+ ((csubtypep null-type key-type)
+ (values key '(if key
+ (%coerce-callable-to-fun key)
+ #'identity)))
+ (t
+ (values key '(%coerce-callable-to-fun key))))))
+ (let ((test-expr `(%funcall pred ,(if key '(%funcall key target) 'target)))
+ (pred-expr (if (csubtypep (lvar-type pred) (specifier-type 'function))
+ 'pred
+ '(%coerce-callable-to-fun pred))))
+ (when (member name '(member-if-not assoc-if-not rassoc-if-not))
+ (setf test-expr `(not ,test-expr)))
+ (labels ((open-code (tail)
+ (when tail
+ `(if (let ((this ',(car tail)))
+ ,(ecase name
+ ((assoc-if assoc-if-not rassoc-if rassoc-if-not)
+ (let ((cxx (if (member name '(assoc-if assoc-if-not)) 'car 'cdr)))
+ `(and this (let ((target (,cxx this)))
+ ,test-expr))))
+ ((member-if member-if-not)
+ `(let ((target this))
+ ,test-expr))))
+ ',(ecase name
+ ((assoc-if assoc-if-not rassoc-if rassoc-if-not)
+ (car tail))
+ ((member-if member-if-not)
+ tail))
+ ,(open-code (cdr tail))))))
+ (let* ((cp (constant-lvar-p list))
+ (c-list (when cp (lvar-value list))))
+ (cond ((and cp c-list (policy node (>= speed space)))
+ `(let ((pred ,pred-expr)
+ ,@(when key `((key ,key-form))))
+ ,(open-code c-list)))
+ ((and cp (not c-list))
+ ;; constant nil list -- nothing to find!
+ nil)
+ (t
+ ;; specialized out-of-line version
+ `(,(specialized-list-seek-function-name name (when key '(key)))
+ ,pred-expr list ,@(when key (list key-form))))))))))
-(deftransform adjoin ((item list &key key test test-not) * * :node node)
- (transform-list-item-seek 'adjoin item list key test test-not node))
+(macrolet ((def (name &optional if/if-not)
+ `(progn
+ (deftransform ,name ((item list &key key test test-not) * * :node node)
+ (transform-list-item-seek ',name item list key test test-not node))
+ ,@(when if/if-not
+ (let ((if-name (symbolicate name "-IF"))
+ (if-not-name (symbolicate name "-IF-NOT")))
+ `((deftransform ,if-name ((pred list &key key) * * :node node)
+ (transform-list-pred-seek ',if-name pred list key node))
+ (deftransform ,if-not-name ((pred list &key key) * * :node node)
+ (transform-list-pred-seek ',if-not-name pred list key node))))))))
+ (def adjoin)
+ (def assoc t)
+ (def member t)
+ (def rassoc t))
(deftransform memq ((item list) (t (constant-arg list)))
(labels ((rec (tail)
\f
;;;; utilities
-;;; Return true if LVAR's only use is a non-NOTINLINE reference to a
-;;; global function with one of the specified NAMES.
-(defun lvar-fun-is (lvar names)
- (declare (type lvar lvar) (list names))
- (let ((use (lvar-uses lvar)))
- (and (ref-p use)
- (let ((leaf (ref-leaf use)))
- (and (global-var-p leaf)
- (eq (global-var-kind leaf) :global-function)
- (not (null (member (leaf-source-name leaf) names
- :test #'equal))))))))
-
;;; If LVAR is a constant lvar, the return the constant value. If it
;;; is null, then return default, otherwise quietly give up the IR1
;;; transform.
projects / sbcl.git / blobdiff