(let* ((fun (block-home-lambda block))
(fun-deleted (eq (functional-kind fun) :deleted))
- (this-cont (block-start block))
+ (this-ctran (block-start block))
(last (block-last block)))
(unless fun-deleted
(check-fun-reached fun block))
- (when (not this-cont)
+ (when (not this-ctran)
(barf "~S has no START." block))
(when (not last)
(barf "~S has no LAST." block))
- (unless (eq (continuation-kind this-cont) :block-start)
+ (unless (eq (ctran-kind this-ctran) :block-start)
(barf "The START of ~S has the wrong kind." block))
- (let ((use (continuation-use this-cont))
- (uses (block-start-uses block)))
- (when (and (null use) (= (length uses) 1))
- (barf "~S has a unique use, but no USE." this-cont))
- (dolist (node uses)
- (unless (eq (node-cont node) this-cont)
- (barf "The USE ~S for START in ~S has wrong CONT." node block))
- (check-node-reached node)))
-
- (let* ((last-cont (node-cont last))
- (cont-block (continuation-block last-cont))
- (dest (continuation-dest last-cont)))
- (ecase (continuation-kind last-cont)
- (:deleted)
- (:deleted-block-start
- (let ((dest (continuation-dest last-cont)))
- (when dest
- (check-node-reached dest)))
- (unless (member last (block-start-uses cont-block))
- (barf "LAST in ~S is missing from uses of its Cont." block)))
- (:block-start
- (check-node-reached (continuation-next last-cont))
- (unless (member last (block-start-uses cont-block))
- (barf "LAST in ~S is missing from uses of its Cont." block)))
- (:inside-block
- (unless (eq cont-block block)
- (barf "CONT of LAST in ~S is in a different BLOCK." block))
- (unless (eq (continuation-use last-cont) last)
- (barf "USE is not LAST in CONT of LAST in ~S." block))
- (when (continuation-next last-cont)
- (barf "CONT of LAST has a NEXT in ~S." block))))
-
- (when dest
- (check-node-reached dest)))
+ (when (ctran-use this-ctran)
+ (barf "The ctran ~S is used." this-ctran))
- (loop
- (unless (eq (continuation-block this-cont) block)
- (barf "BLOCK in ~S should be ~S." this-cont block))
+ (when (node-next last)
+ (barf "Last node ~S of ~S has next ctran." last block))
- (let ((dest (continuation-dest this-cont)))
- (when dest
- (check-node-reached dest)))
+ (loop
+ (unless (eq (ctran-block this-ctran) block)
+ (barf "BLOCK of ~S should be ~S." this-ctran block))
- (let ((node (continuation-next this-cont)))
+ (let ((node (ctran-next this-ctran)))
(unless (node-p node)
- (barf "~S has strange NEXT." this-cont))
- (unless (eq (node-prev node) this-cont)
- (barf "PREV in ~S should be ~S." node this-cont))
-
+ (barf "~S has strange NEXT." this-ctran))
+ (unless (eq (node-prev node) this-ctran)
+ (barf "PREV in ~S should be ~S." node this-ctran))
+
+ (when (valued-node-p node)
+ (binding* ((lvar (node-lvar node) :exit-if-null))
+ (unless (memq node (find-uses lvar))
+ (barf "~S is not used by its LVAR ~S." node lvar))
+ (when (singleton-p (lvar-uses lvar))
+ (barf "~S has exactly 1 use, but LVAR-USES is a list."
+ lvar))
+ (unless (lvar-dest lvar)
+ (barf "~S does not have dest." lvar))))
+
+ (check-node-reached node)
(unless fun-deleted
(check-node-consistency node))
- (let ((cont (node-cont node)))
- (when (not cont)
- (barf "~S has no CONT." node))
+ (let ((next (node-next node)))
+ (when (and (not next) (not (eq node last)))
+ (barf "~S has no NEXT." node))
(when (eq node last) (return))
- (unless (eq (continuation-kind cont) :inside-block)
- (barf "The interior continuation ~S in ~S has the wrong kind."
- cont
+ (unless (eq (ctran-kind next) :inside-block)
+ (barf "The interior ctran ~S in ~S has the wrong kind."
+ next
block))
- (unless (continuation-next cont)
- (barf "~S has no NEXT." cont))
- (unless (eq (continuation-use cont) node)
- (barf "USE in ~S should be ~S." cont node))
- (setq this-cont cont))))
+ (unless (ctran-next next)
+ (barf "~S has no NEXT." next))
+ (unless (eq (ctran-use next) node)
+ (barf "USE in ~S should be ~S." next node))
+ (setq this-ctran next))))
(check-block-successors block))
(values))
\f
;;;; node consistency checking
-;;; Check that the DEST for CONT is the specified NODE. We also mark
-;;; the block CONT is in as SEEN.
-#+nil(declaim (ftype (function (continuation node) (values)) check-dest))
-(defun check-dest (cont node)
- (let ((kind (continuation-kind cont)))
- (ecase kind
- (:deleted
- (unless (block-delete-p (node-block node))
- (barf "DEST ~S of deleted continuation ~S is not DELETE-P."
- cont node)))
- (:deleted-block-start
- (unless (eq (continuation-dest cont) node)
- (barf "DEST for ~S should be ~S." cont node)))
- ((:inside-block :block-start)
- (unless (gethash (continuation-block cont) *seen-blocks*)
- (barf "~S receives ~S, which is in an unknown block." node cont))
- (unless (eq (continuation-dest cont) node)
- (barf "DEST for ~S should be ~S." cont node))
- (unless (find-uses cont)
- (barf "Continuation ~S has a destinatin, but no uses."
- cont)))))
+;;; Check that the DEST for LVAR is the specified NODE. We also mark
+;;; the block LVAR is in as SEEN.
+#+nil(declaim (ftype (function (lvar node) (values)) check-dest))
+(defun check-dest (lvar node)
+ (do-uses (use lvar)
+ (unless (gethash (node-block use) *seen-blocks*)
+ (barf "Node ~S using ~S is in an unknown block." use lvar)))
+ (unless (eq (lvar-dest lvar) node)
+ (barf "DEST for ~S should be ~S." lvar node))
+ (unless (find-uses lvar)
+ (barf "Lvar ~S has a destinatin, but no uses."
+ lvar))
(values))
;;; This function deals with checking for consistency of the
;; possibility that control will flow through the
;; NIL-returning branch. So we punt here. -- WHN 2001-04-15
(declare (notinline position))
- (let ((fun (ref-leaf (continuation-use
+ (let ((fun (ref-leaf (lvar-use
(basic-combination-fun node))))
(pos (position arg (basic-combination-args node))))
(declare (type index pos))
(when (leaf-refs (elt (lambda-vars fun) pos))
(barf "flushed arg for referenced var in ~S" node)))))))
- (let ((dest (continuation-dest (node-cont node))))
+ (let* ((lvar (node-lvar node))
+ (dest (and lvar (lvar-dest lvar))))
(when (and (return-p dest)
(eq (basic-combination-kind node) :local)
(not (eq (lambda-tail-set (combination-lambda node))
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