(type (or cleanup null) cleanup))
(setf (component-reanalyze (block-component block1)) t)
(with-ir1-environment-from-node node
- (let* ((start (make-continuation))
- (block (continuation-starts-block start))
- (cont (make-continuation))
- (*lexenv* (if cleanup
- (make-lexenv :cleanup cleanup)
- *lexenv*)))
- (change-block-successor block1 block2 block)
- (link-blocks block block2)
- (ir1-convert start cont form)
- (setf (block-last block) (continuation-use cont))
- block)))
+ (with-component-last-block (*current-component*
+ (block-next (component-head *current-component*)))
+ (let* ((start (make-continuation))
+ (block (continuation-starts-block start))
+ (cont (make-continuation))
+ (*lexenv* (if cleanup
+ (make-lexenv :cleanup cleanup)
+ *lexenv*)))
+ (change-block-successor block1 block2 block)
+ (link-blocks block block2)
+ (ir1-convert start cont form)
+ (setf (block-last block) (continuation-use cont))
+ block))))
\f
;;;; continuation use hacking
;;; Return a list of all the nodes which use Cont.
-(declaim (ftype (function (continuation) list) find-uses))
+(declaim (ftype (sfunction (continuation) list) find-uses))
(defun find-uses (cont)
(ecase (continuation-kind cont)
((:block-start :deleted-block-start)
(:unused nil)
(:deleted nil)))
+(defun principal-continuation-use (cont)
+ (let ((use (continuation-use cont)))
+ (if (cast-p use)
+ (principal-continuation-use (cast-value use))
+ use)))
+
;;; Update continuation use information so that NODE is no longer a
;;; use of its CONT. If the old continuation doesn't start its block,
;;; then we don't update the BLOCK-START-USES, since it will be
;;; Note: if you call this function, you may have to do a
;;; REOPTIMIZE-CONTINUATION to inform IR1 optimization that something
;;; has changed.
-(declaim (ftype (function (node) (values)) delete-continuation-use))
+(declaim (ftype (sfunction (node) (values)) delete-continuation-use))
(defun delete-continuation-use (node)
(let* ((cont (node-cont node))
(block (continuation-block cont)))
;;; Note: if you call this function, you may have to do a
;;; REOPTIMIZE-CONTINUATION to inform IR1 optimization that something
;;; has changed.
-(declaim (ftype (function (node continuation) (values)) add-continuation-use))
+(declaim (ftype (sfunction (node continuation) (values)) add-continuation-use))
(defun add-continuation-use (node cont)
(aver (not (node-cont node)))
(let ((block (continuation-block cont)))
(let ((uses (cons node (block-start-uses block))))
(setf (block-start-uses block) uses)
(setf (continuation-use cont)
- (if (cdr uses) nil (car uses)))))))
+ (if (cdr uses) nil (car uses)))
+ (let ((block (node-block node)))
+ (unless (block-last block)
+ (setf (block-last block) node)))))))
(setf (node-cont node) cont)
(values))
(declare (type continuation cont) (type node node))
(and (eq (node-cont node) cont)
(not (eq (continuation-kind cont) :deleted))
+ (eq (continuation-dest cont)
+ (continuation-next cont))
(let ((cblock (continuation-block cont))
(nblock (node-block node)))
(or (eq cblock nblock)
(if (eq old (basic-combination-fun dest))
(setf (basic-combination-fun dest) new)
(setf (basic-combination-args dest)
- (nsubst new old (basic-combination-args dest))))))
+ (nsubst new old (basic-combination-args dest)))))
+ (cast (setf (cast-value dest) new))
+ (null))
- (flush-dest old)
+ (when dest (flush-dest old))
(setf (continuation-dest new) dest)
- (setf (continuation-%externally-checkable-type new) nil))
+ (flush-continuation-externally-checkable-type new))
(values))
;;; Replace all uses of OLD with uses of NEW, where NEW has an
(do-uses (node old)
(delete-continuation-use node)
(add-continuation-use node new))
- (dolist (lexenv-use (continuation-lexenv-uses old))
+ (dolist (lexenv-use (continuation-lexenv-uses old)) ; FIXME - APD
(setf (cadr lexenv-use) new))
(reoptimize-continuation new)
(ecase (continuation-kind cont)
(:unused
(aver (not (continuation-block cont)))
- (let* ((head (component-head *current-component*))
- (next (block-next head))
- (new-block (make-block cont)))
+ (let* ((next (component-last-block *current-component*))
+ (prev (block-prev next))
+ (new-block (make-block cont)))
(setf (block-next new-block) next
- (block-prev new-block) head
- (block-prev next) new-block
- (block-next head) new-block
- (continuation-block cont) new-block
- (continuation-use cont) nil
- (continuation-kind cont) :block-start)
+ (block-prev new-block) prev
+ (block-prev next) new-block
+ (block-next prev) new-block
+ (continuation-block cont) new-block
+ (continuation-use cont) nil
+ (continuation-kind cont) :block-start)
new-block))
(:block-start
(continuation-block cont))))
(node-ends-block (continuation-use cont))))))))
(values))
\f
+;;;;
+
+;;; Filter values of CONT with a destination through FORM, which must
+;;; be an ordinary/mv call. First argument must be 'DUMMY, which will
+;;; be replaced with CONT. In case of an ordinary call the function
+;;; should not have return type NIL.
+;;;
+;;; TODO: remove preconditions.
+(defun filter-continuation (cont form)
+ (declare (type continuation cont) (type list form))
+ (let ((dest (continuation-dest cont)))
+ (declare (type node dest))
+ (with-ir1-environment-from-node dest
+
+ ;; Ensuring that CONT starts a block lets us freely manipulate its uses.
+ (ensure-block-start cont)
+
+ ;; Make a new continuation and move CONT's uses to it.
+ (let ((new-start (make-continuation))
+ (prev (node-prev dest)))
+ (continuation-starts-block new-start)
+ (substitute-continuation-uses new-start cont)
+
+ ;; Make the DEST node start its block so that we can splice in
+ ;; the LAMBDA code.
+ (when (continuation-use prev)
+ (node-ends-block (continuation-use prev)))
+
+ (let* ((prev-block (continuation-block prev))
+ (new-block (continuation-block new-start))
+ (dummy (make-continuation)))
+
+ ;; Splice in the new block before DEST, giving the new block
+ ;; all of DEST's predecessors.
+ (dolist (block (block-pred prev-block))
+ (change-block-successor block prev-block new-block))
+
+ ;; Convert the lambda form, using the new block start as
+ ;; START and a dummy continuation as CONT.
+ (ir1-convert new-start dummy form)
+
+ ;; TODO: Why should this be true? -- WHN 19990601
+ ;;
+ ;; It is somehow related to the precondition of non-NIL
+ ;; return type of the function. -- APD 2003-3-24
+ (aver (eq (continuation-block dummy) new-block))
+
+ ;; KLUDGE: Comments at the head of this function in CMU CL
+ ;; said that somewhere in here we
+ ;; Set the new block's start and end cleanups to the *start*
+ ;; cleanup of PREV's block. This overrides the incorrect
+ ;; default from WITH-IR1-ENVIRONMENT-FROM-NODE.
+ ;; Unfortunately I can't find any code which corresponds to this.
+ ;; Perhaps it was a stale comment? Or perhaps I just don't
+ ;; understand.. -- WHN 19990521
+
+ (let ((node (continuation-use dummy)))
+ (setf (block-last new-block) node)
+ ;; Change the use to a use of CONT. (We need to use the
+ ;; dummy continuation to get the control transfer right,
+ ;; because we want to go to PREV's block, not CONT's.)
+ (delete-continuation-use node)
+ (add-continuation-use node cont))
+ ;; Link the new block to PREV's block.
+ (link-blocks new-block prev-block))
+
+ ;; Replace 'DUMMY with the new continuation. (We can find
+ ;; 'DUMMY because no LET conversion has been done yet.) The
+ ;; [mv-]combination code from the call in the form will be the
+ ;; use of the new check continuation. We substitute for the
+ ;; first argument of this node.
+ (let* ((node (continuation-use cont))
+ (args (basic-combination-args node))
+ (victim (first args)))
+ (aver (eq (constant-value (ref-leaf (continuation-use victim)))
+ 'dummy))
+ (substitute-continuation new-start victim)))
+
+ ;; Invoking local call analysis converts this call to a LET.
+ (locall-analyze-component *current-component*)
+
+ (values))))
+
+;;; Deleting a filter may result in some calls becoming tail.
+(defun delete-filter (node cont value)
+ (collect ((merges))
+ (prog2
+ (when (return-p (continuation-dest cont))
+ (do-uses (use value)
+ (when (and (basic-combination-p use)
+ (eq (basic-combination-kind use) :local))
+ (merges use))))
+ (cond ((and (eq (continuation-kind cont) :inside-block)
+ (eq (continuation-kind value) :inside-block))
+ (setf (continuation-dest value) nil)
+ (substitute-continuation value cont)
+ (prog1 (unlink-node node)
+ (setq cont value)))
+ (t (ensure-block-start value)
+ (ensure-block-start cont)
+ (substitute-continuation-uses cont value)
+ (prog1 (unlink-node node)
+ (setf (continuation-dest value) nil))))
+ (dolist (merge (merges))
+ (merge-tail-sets merge)))))
+\f
;;;; miscellaneous shorthand functions
;;; Return the home (i.e. enclosing non-LET) CLAMBDA for NODE. Since
(when (eq (lambda-home fun) fun)
(return fun))))
+(declaim (ftype (sfunction (node) cblock) node-block))
(defun node-block (node)
- (declare (type node node))
- (the cblock (continuation-block (node-prev node))))
+ (continuation-block (node-prev node)))
+(declaim (ftype (sfunction (node) component) node-component))
(defun node-component (node)
- (declare (type node node))
(block-component (node-block node)))
+(declaim (ftype (sfunction (node) physenv) node-physenv))
(defun node-physenv (node)
- (declare (type node node))
- (the physenv (lambda-physenv (node-home-lambda node))))
+ (lambda-physenv (node-home-lambda node)))
+(declaim (ftype (sfunction (clambda) cblock) lambda-block))
(defun lambda-block (clambda)
- (declare (type clambda clambda))
(node-block (lambda-bind clambda)))
+(declaim (ftype (sfunction (clambda) component) lambda-component))
(defun lambda-component (clambda)
(block-component (lambda-block clambda)))
;;; (BLOCK B (RETURN-FROM B) (SETQ X 3))
;;; where the block is just a placeholder during parsing and doesn't
;;; actually correspond to code which will be written anywhere.
+(declaim (ftype (sfunction (cblock) (or clambda null)) block-home-lambda-or-null))
(defun block-home-lambda-or-null (block)
- (declare (type cblock block))
(if (node-p (block-last block))
;; This is the old CMU CL way of doing it.
(node-home-lambda (block-last block))
nil))))
;;; Return the non-LET LAMBDA that holds BLOCK's code.
+(declaim (ftype (sfunction (cblock) clambda) block-home-lambda))
(defun block-home-lambda (block)
- (the clambda
- (block-home-lambda-or-null block)))
+ (block-home-lambda-or-null block))
;;; Return the IR1 physical environment for BLOCK.
+(declaim (ftype (sfunction (cblock) physenv) block-physenv))
(defun block-physenv (block)
- (declare (type cblock block))
(lambda-physenv (block-home-lambda block)))
;;; Return the Top Level Form number of PATH, i.e. the ordinal number
(values nil nil))))
;;; Return the LAMBDA that is CONT's home, or NIL if there is none.
+(declaim (ftype (sfunction (continuation) (or clambda null))
+ continuation-home-lambda-or-null))
(defun continuation-home-lambda-or-null (cont)
;; KLUDGE: This function is a post-CMU-CL hack by WHN, and this
;; implementation might not be quite right, or might be uglier than
(bug "confused about home lambda for ~S"))))
;;; Return the LAMBDA that is CONT's home.
+(declaim (ftype (sfunction (continuation) clambda)
+ continuation-home-lambda))
(defun continuation-home-lambda (cont)
- (the clambda
- (continuation-home-lambda-or-null cont)))
+ (continuation-home-lambda-or-null cont))
#!-sb-fluid (declaim (inline continuation-single-value-p))
(defun continuation-single-value-p (cont)
- (not (typep (continuation-dest cont)
- '(or creturn exit mv-combination))))
+ (let ((dest (continuation-dest cont)))
+ (typecase dest
+ ((or creturn exit)
+ nil)
+ (mv-combination
+ (eq (basic-combination-fun dest) cont))
+ (cast
+ (locally
+ (declare (notinline continuation-single-value-p))
+ (and (not (values-type-p (cast-asserted-type dest)))
+ (continuation-single-value-p (node-cont dest)))))
+ (t
+ t))))
+
+(defun principal-continuation-end (cont)
+ (loop for prev = cont then (node-cont dest)
+ for dest = (continuation-dest prev)
+ while (cast-p dest)
+ finally (return (values dest prev))))
+
+(defun principal-continuation-single-valuify (cont)
+ (loop for prev = cont then (node-cont dest)
+ for dest = (continuation-dest prev)
+ while (cast-p dest)
+ do (setf (node-derived-type dest)
+ (make-short-values-type (list (single-value-type
+ (node-derived-type dest)))))
+ (reoptimize-continuation prev)))
\f
;;; Return a new LEXENV just like DEFAULT except for the specified
;;; slot values. Values for the alist slots are NCONCed to the
(let ((new-pred (delq block1 (block-pred block2))))
(setf (block-pred block2) new-pred)
- (when (and new-pred (null (rest new-pred)))
+ (when (singleton-p new-pred)
(let ((pred-block (first new-pred)))
(when (if-p (block-last pred-block))
(setf (block-test-modified pred-block) t)))))
;;; Unlink a block from the next/prev chain. We also null out the
;;; COMPONENT.
-(declaim (ftype (function (cblock) (values)) remove-from-dfo))
+(declaim (ftype (sfunction (cblock) (values)) remove-from-dfo))
(defun remove-from-dfo (block)
(let ((next (block-next block))
(prev (block-prev block)))
;;; Set the FLAG for all the blocks in COMPONENT to NIL, except for
;;; the head and tail which are set to T.
-(declaim (ftype (function (component) (values)) clear-flags))
+(declaim (ftype (sfunction (component) (values)) clear-flags))
(defun clear-flags (component)
(let ((head (component-head component))
(tail (component-tail component)))
;;; Make a component with no blocks in it. The BLOCK-FLAG is initially
;;; true in the head and tail blocks.
-(declaim (ftype (function nil component) make-empty-component))
+(declaim (ftype (sfunction () component) make-empty-component))
(defun make-empty-component ()
(let* ((head (make-block-key :start nil :component nil))
(tail (make-block-key :start nil :component nil))
- (res (make-component :head head :tail tail)))
+ (res (make-component head tail)))
(setf (block-flag head) t)
(setf (block-flag tail) t)
(setf (block-component head) res)
(values))
-;;; Note that something interesting has happened to VAR.
+;;; Note that something interesting has happened to VAR.
(defun reoptimize-lambda-var (var)
(declare (type lambda-var var))
(let ((fun (lambda-var-home var)))
(return-block (and return (node-block return))))
(unless (leaf-ever-used clambda)
(let ((*compiler-error-context* bind))
- (compiler-note "deleting unused function~:[.~;~:*~% ~S~]"
- (leaf-debug-name clambda))))
+ (compiler-notify "deleting unused function~:[.~;~:*~% ~S~]"
+ (leaf-debug-name clambda))))
(unless (block-delete-p bind-block)
(unlink-blocks (component-head component) bind-block))
(when (and return-block (not (block-delete-p return-block)))
(maybe-convert-to-assignment fun)))
(t
(maybe-convert-to-assignment fun)))))))
-
+
(dolist (ep (optional-dispatch-entry-points leaf))
- (frob ep))
+ (when (promise-ready-p ep)
+ (frob (force ep))))
(when (optional-dispatch-more-entry leaf)
(frob (optional-dispatch-more-entry leaf)))
(let ((main (optional-dispatch-main-entry leaf)))
(unless (eq (continuation-kind cont) :deleted)
(aver (continuation-dest cont))
(setf (continuation-dest cont) nil)
- (setf (continuation-%externally-checkable-type cont) nil)
+ (flush-continuation-externally-checkable-type cont)
(do-uses (use cont)
(let ((prev (node-prev use)))
(unless (eq (continuation-kind prev) :deleted)
(setf (block-attributep (block-flags block) flush-p type-asserted)
t))))))
- (setf (continuation-%type-check cont) nil)
-
(values))
+(defun delete-dest (cont)
+ (let ((dest (continuation-dest cont)))
+ (when dest
+ (let ((prev (node-prev dest)))
+ (when (and prev
+ (not (eq (continuation-kind prev) :deleted)))
+ (let ((block (continuation-block prev)))
+ (unless (block-delete-p block)
+ (mark-for-deletion block))))))))
+
;;; Do a graph walk backward from BLOCK, marking all predecessor
;;; blocks with the DELETE-P flag.
(defun mark-for-deletion (block)
(setf (block-attributep (block-flags block) flush-p type-asserted) t)
(setf (component-reoptimize (block-component block)) t)))))
- (let ((dest (continuation-dest cont)))
- (when dest
- (let ((prev (node-prev dest)))
- (when (and prev
- (not (eq (continuation-kind prev) :deleted)))
- (let ((block (continuation-block prev)))
- (unless (block-delete-p block)
- (mark-for-deletion block)))))))
+ (delete-dest cont)
(setf (continuation-kind cont) :deleted)
(setf (continuation-dest cont) nil)
- (setf (continuation-%externally-checkable-type cont) nil)
+ (flush-continuation-externally-checkable-type cont)
(setf (continuation-next cont) nil)
- (setf (continuation-asserted-type cont) *empty-type*)
(setf (continuation-%derived-type cont) *empty-type*)
- (setf (continuation-type-to-check cont) *empty-type*)
(setf (continuation-use cont) nil)
(setf (continuation-block cont) nil)
(setf (continuation-reoptimize cont) nil)
- (setf (continuation-%type-check cont) nil)
(setf (continuation-info cont) nil)
(values))
;;; We mark the START as has having no next and remove the last node
;;; from its CONT's uses. We also flush the DEST for all continuations
;;; whose values are received by nodes in the block.
-(defun delete-block (block)
+(defun delete-block (block &optional silent)
(declare (type cblock block))
- (aver (block-component block)) ; else block is already deleted!
- (note-block-deletion block)
+ (aver (block-component block)) ; else block is already deleted!
+ (unless silent
+ (note-block-deletion block))
(setf (block-delete-p block) t)
- (let* ((last (block-last block))
- (cont (node-cont last)))
- (delete-continuation-use last)
- (if (eq (continuation-kind cont) :unused)
- (delete-continuation cont)
- (reoptimize-continuation cont)))
+ (let ((last (block-last block)))
+ (when last
+ (let ((cont (node-cont last)))
+ (delete-continuation-use last)
+ (acond ((eq (continuation-kind cont) :unused)
+ (delete-continuation cont))
+ ((and (null (find-uses cont))
+ (continuation-dest cont))
+ (mark-for-deletion (node-block it)))
+ ((reoptimize-continuation cont))))))
(dolist (b (block-pred block))
(unlink-blocks b block)
(dolist (b (block-succ block))
(unlink-blocks block b))
- (do-nodes (node cont block)
+ (do-nodes-carefully (node cont block)
(typecase node
(ref (delete-ref node))
(cif
;; careful that this LET has not already been partially deleted.
(basic-combination
(when (and (eq (basic-combination-kind node) :local)
- ;; Guards COMBINATION-LAMBDA agains the REF being deleted.
- (continuation-use (basic-combination-fun node)))
- (let ((fun (combination-lambda node)))
- ;; If our REF was the second-to-last ref, and has been
- ;; deleted, then FUN may be a LET for some other
- ;; combination.
- (when (and (functional-letlike-p fun)
- (eq (let-combination fun) node))
- (delete-lambda fun))))
+ ;; Guards COMBINATION-LAMBDA agains the REF being deleted.
+ (continuation-use (basic-combination-fun node)))
+ (let ((fun (combination-lambda node)))
+ ;; If our REF was the second-to-last ref, and has been
+ ;; deleted, then FUN may be a LET for some other
+ ;; combination.
+ (when (and (functional-letlike-p fun)
+ (eq (let-combination fun) node))
+ (delete-lambda fun))))
(flush-dest (basic-combination-fun node))
(dolist (arg (basic-combination-args node))
- (when arg (flush-dest arg))))
+ (when arg (flush-dest arg))))
(bind
(let ((lambda (bind-lambda node)))
- (unless (eq (functional-kind lambda) :deleted)
- (delete-lambda lambda))))
+ (unless (eq (functional-kind lambda) :deleted)
+ (delete-lambda lambda))))
(exit
(let ((value (exit-value node))
- (entry (exit-entry node)))
- (when value
- (flush-dest value))
- (when entry
- (setf (entry-exits entry)
- (delete node (entry-exits entry))))))
+ (entry (exit-entry node)))
+ (when value
+ (flush-dest value))
+ (when entry
+ (setf (entry-exits entry)
+ (delete node (entry-exits entry))))))
(creturn
(flush-dest (return-result node))
(delete-return node))
(cset
(flush-dest (set-value node))
(let ((var (set-var node)))
- (setf (basic-var-sets var)
- (delete node (basic-var-sets var))))))
+ (setf (basic-var-sets var)
+ (delete node (basic-var-sets var)))))
+ (cast
+ (flush-dest (cast-value node))))
(delete-continuation (node-prev node)))
(remove-from-dfo block)
(values))
-;;; Do stuff to indicate that the return node Node is being deleted.
-;;; We set the RETURN to NIL.
+;;; Do stuff to indicate that the return node NODE is being deleted.
(defun delete-return (node)
(declare (type creturn node))
- (let ((fun (return-lambda node)))
+ (let* ((fun (return-lambda node))
+ (tail-set (lambda-tail-set fun)))
(aver (lambda-return fun))
- (setf (lambda-return fun) nil))
+ (setf (lambda-return fun) nil)
+ (when (and tail-set (not (find-if #'lambda-return
+ (tail-set-funs tail-set))))
+ (setf (tail-set-type tail-set) *empty-type*)))
(values))
;;; If any of the VARS in FUN was never referenced and was not
0)))
(unless (return-p node)
(let ((*compiler-error-context* node))
- (compiler-note "deleting unreachable code")))
+ (compiler-notify "deleting unreachable code")))
(return))))))
(values))
(setf (continuation-next prev) nil))
(t
(setf (continuation-next prev) next)
- (setf (node-prev next) prev)))
+ (setf (node-prev next) prev)
+ (when (and (if-p next) ; AOP wanted
+ (eq prev (if-test next)))
+ (reoptimize-continuation prev))))
(setf (node-prev node) nil)
nil)
(t
(aver (eq node last))
(let* ((succ (block-succ block))
(next (first succ)))
- (aver (and succ (null (cdr succ))))
+ (aver (singleton-p succ))
(cond
((member block succ)
(with-ir1-environment-from-node node
(after-args (subseq outside-args (1+ arg-position))))
(dolist (arg inside-args)
(setf (continuation-dest arg) outside)
- (setf (continuation-%externally-checkable-type arg) nil))
+ (flush-continuation-externally-checkable-type arg))
(setf (combination-args inside) nil)
(setf (combination-args outside)
(append before-args inside-args after-args))
(change-ref-leaf (continuation-use inside-fun)
(find-free-fun 'list "???"))
- (setf (combination-kind inside) :full)
+ (setf (combination-kind inside)
+ (info :function :info 'list))
(setf (node-derived-type inside) *wild-type*)
(flush-dest cont)
- (setf (continuation-asserted-type cont) *wild-type*)
- (setf (continuation-type-to-check cont) *wild-type*)
(values))))))
+
+(defun flush-combination (combination)
+ (declare (type combination combination))
+ (flush-dest (combination-fun combination))
+ (dolist (arg (combination-args combination))
+ (flush-dest arg))
+ (unlink-node combination)
+ (values))
+
\f
;;;; leaf hackery
(delete-ref ref)
(setf (ref-leaf ref) leaf)
(setf (leaf-ever-used leaf) t)
- (let ((ltype (leaf-type leaf)))
- (if (fun-type-p ltype)
- (setf (node-derived-type ref) ltype)
- (derive-node-type ref ltype)))
+ (let* ((ltype (leaf-type leaf))
+ (vltype (make-single-value-type ltype)))
+ (if (let* ((cont (node-cont ref))
+ (dest (continuation-dest cont)))
+ (and (basic-combination-p dest)
+ (eq cont (basic-combination-fun dest))
+ (csubtypep ltype (specifier-type 'function))))
+ (setf (node-derived-type ref) vltype)
+ (derive-node-type ref vltype)))
(reoptimize-continuation (node-cont ref)))
(values))
:type (ctype-of object)
:where-from :defined)))
\f
+;;; Return true if VAR would have to be closed over if environment
+;;; analysis ran now (i.e. if there are any uses that have a different
+;;; home lambda than VAR's home.)
+(defun closure-var-p (var)
+ (declare (type lambda-var var))
+ (let ((home (lambda-var-home var)))
+ (cond ((eq (functional-kind home) :deleted)
+ nil)
+ (t (let ((home (lambda-home home)))
+ (flet ((frob (l)
+ (find home l :key #'node-home-lambda
+ :test-not #'eq)))
+ (or (frob (leaf-refs var))
+ (frob (basic-var-sets var)))))))))
+
;;; If there is a non-local exit noted in ENTRY's environment that
;;; exits to CONT in that entry, then return it, otherwise return NIL.
(defun find-nlx-info (entry cont)
\f
;;;; functional hackery
-(declaim (ftype (function (functional) clambda) main-entry))
+(declaim (ftype (sfunction (functional) clambda) main-entry))
(defun main-entry (functional)
(etypecase functional
(clambda functional)
;;; MV-BIND when it appears in an MV-CALL. All fixed arguments must be
;;; optional with null default and no SUPPLIED-P. There must be a
;;; &REST arg with no references.
-(declaim (ftype (function (functional) boolean) looks-like-an-mv-bind))
+(declaim (ftype (sfunction (functional) boolean) looks-like-an-mv-bind))
(defun looks-like-an-mv-bind (functional)
(and (optional-dispatch-p functional)
(do ((arg (optional-dispatch-arglist functional) (cdr arg)))
;; compiler to be able to use WITH-COMPILATION-UNIT on
;; arbitrarily huge blocks of code. -- WHN)
(let ((*compiler-error-context* node))
- (compiler-note "*INLINE-EXPANSION-LIMIT* (~W) was exceeded, ~
- probably trying to~% ~
- inline a recursive function."
- *inline-expansion-limit*))
+ (compiler-notify "*INLINE-EXPANSION-LIMIT* (~W) was exceeded, ~
+ probably trying to~% ~
+ inline a recursive function."
+ *inline-expansion-limit*))
nil)
(t t))))
+
+;;; Make sure that FUNCTIONAL is not let-converted or deleted.
+(defun assure-functional-live-p (functional)
+ (declare (type functional functional))
+ (when (and (or
+ ;; looks LET-converted
+ (functional-somewhat-letlike-p functional)
+ ;; It's possible for a LET-converted function to end up
+ ;; deleted later. In that case, for the purposes of this
+ ;; analysis, it is LET-converted: LET-converted functionals
+ ;; are too badly trashed to expand them inline, and deleted
+ ;; LET-converted functionals are even worse.
+ (eql (functional-kind functional) :deleted)))
+ (throw 'locall-already-let-converted functional)))
\f
;;;; careful call
;;; return NIL as our second value to indicate this. NODE is used as
;;; the error context for any error message, and CONTEXT is a string
;;; that is spliced into the warning.
-(declaim (ftype (function ((or symbol function) list node function string)
+(declaim (ftype (sfunction ((or symbol function) list node function string)
(values list boolean))
careful-call))
(defun careful-call (function args node warn-fun context)
`(progn
(defun ,careful (specifier)
(handler-case (,basic specifier)
+ (sb!kernel::arg-count-error (condition)
+ (values nil (list (format nil "~A" condition))))
(simple-error (condition)
(values nil (list* (simple-condition-format-control condition)
(simple-condition-format-arguments condition))))))
;;; list of continuations ARGS. It returns the continuation if the
;;; keyword is present, or NIL otherwise. The legality and
;;; constantness of the keywords should already have been checked.
-(declaim (ftype (function (list keyword) (or continuation null))
+(declaim (ftype (sfunction (list keyword) (or continuation null))
find-keyword-continuation))
(defun find-keyword-continuation (args key)
(do ((arg args (cddr arg)))
;;; This function is used by the result of PARSE-DEFTRANSFORM to
;;; verify that alternating continuations in ARGS are constant and
;;; that there is an even number of args.
-(declaim (ftype (function (list) boolean) check-key-args-constant))
+(declaim (ftype (sfunction (list) boolean) check-key-args-constant))
(defun check-key-args-constant (args)
(do ((arg args (cddr arg)))
((null arg) t)
;;; verify that the list of continuations ARGS is a well-formed &KEY
;;; arglist and that only keywords present in the list KEYS are
;;; supplied.
-(declaim (ftype (function (list list) boolean) check-transform-keys))
+(declaim (ftype (sfunction (list list) boolean) check-transform-keys))
(defun check-transform-keys (args keys)
(and (check-key-args-constant args)
(do ((arg args (cddr arg)))
;;;; miscellaneous
;;; Called by the expansion of the EVENT macro.
-(declaim (ftype (function (event-info (or node null)) *) %event))
+(declaim (ftype (sfunction (event-info (or node null)) *) %event))
(defun %event (info node)
(incf (event-info-count info))
(when (and (>= (event-info-level info) *event-note-threshold*)
(policy (or node *lexenv*)
(= inhibit-warnings 0)))
(let ((*compiler-error-context* node))
- (compiler-note (event-info-description info))))
+ (compiler-notify (event-info-description info))))
(let ((action (event-info-action info)))
(when action (funcall action node))))
+
+;;;
+(defun make-cast (value type policy)
+ (declare (type continuation value)
+ (type ctype type)
+ (type policy policy))
+ (%make-cast :asserted-type type
+ :type-to-check (maybe-weaken-check type policy)
+ :value value
+ :derived-type (coerce-to-values type)))
+
+(defun cast-type-check (cast)
+ (declare (type cast cast))
+ (when (cast-reoptimize cast)
+ (ir1-optimize-cast cast t))
+ (cast-%type-check cast))
+
+(defun note-single-valuified-continuation (cont)
+ (declare (type continuation cont))
+ (let ((use (continuation-use cont)))
+ (cond ((ref-p use)
+ (let ((leaf (ref-leaf use)))
+ (when (and (lambda-var-p leaf)
+ (null (rest (leaf-refs leaf))))
+ (reoptimize-lambda-var leaf))))
+ ((or (null use) (combination-p use))
+ (dolist (node (find-uses cont))
+ (setf (node-reoptimize node) t)
+ (setf (block-reoptimize (node-block node)) t)
+ (setf (component-reoptimize (node-component node)) t))))))
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