X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fdfo.lisp;h=195226d6dc63ff485f960ef111120787c7e94a41;hb=20b2378572cf7378f3f267e2234c4234dacfbdc9;hp=c03fa36a727b234a217be5efc34891cf7ea96f96;hpb=05525d3a5906d7a89fcb689c26177732493c40ce;p=sbcl.git

diff --git a/src/compiler/dfo.lisp b/src/compiler/dfo.lisp
index c03fa36..195226d 100644
--- a/src/compiler/dfo.lisp
+++ b/src/compiler/dfo.lisp
@@ -22,7 +22,7 @@
   (let ((head (component-head component)))
     (do ()
 	((dolist (ep (block-succ head) t)
-	   (unless (block-flag ep)
+	   (unless (or (block-flag ep) (block-delete-p ep))
 	     (find-dfo-aux ep head component)
 	     (return nil))))))
   (let ((num 0))
@@ -30,10 +30,8 @@
     (do-blocks-backwards (block component :both)
       (if (block-flag block)
 	  (setf (block-number block) (incf num))
-	  (setf (block-delete-p block) t)))
-    (do-blocks (block component)
-      (when (block-delete-p block)
-	(delete-block block))))
+	  (delete-block-lazily block)))
+    (clean-component component (component-head component)))
   (values))
 
 ;;; Move all the code and entry points from OLD to NEW. The code in
@@ -89,7 +87,7 @@
 (defun find-dfo-aux (block head component)
   (unless (eq (block-component block) component)
     (join-components component (block-component block)))
-  (unless (block-flag block)
+  (unless (or (block-flag block) (block-delete-p block))
     (setf (block-flag block) t)
     (dolist (succ (block-succ block))
       (find-dfo-aux succ head component))
@@ -445,7 +443,7 @@
     ;; in the old LAMBDA into the new one (with LETs implicitly moved
     ;; by changing their home.)
     (do-blocks (block component)
-      (do-nodes (node cont block)
+      (do-nodes (node nil block)
 	(let ((lexenv (node-lexenv node)))
 	  (when (eq (lexenv-lambda lexenv) lambda)
 	    (setf (lexenv-lambda lexenv) result-lambda))))
@@ -488,12 +486,9 @@
     ;; is always a preceding REF NIL node in top level lambdas.
     (let ((return (lambda-return lambda)))
       (when return
-	(let ((return-block (node-block return))
-	      (result (return-result return)))
-	  (setf (block-last return-block) (continuation-use result))
-	  (flush-dest result)
-	  (delete-continuation result)
-	  (link-blocks return-block result-return-block))))))
+	(link-blocks (node-block return) result-return-block)
+        (flush-dest (return-result return))
+        (unlink-node return)))))
 
 ;;; Given a non-empty list of top level LAMBDAs, smash them into a
 ;;; top level lambda and component, returning these as values. We use
@@ -509,14 +504,9 @@
       ;; Make sure the result's return node starts a block so that we
       ;; can splice code in before it.
       (let ((prev (node-prev
-		   (continuation-use
-		    (return-result result-return)))))
-	(when (continuation-use prev)
-	  (node-ends-block (continuation-use prev)))
-	(do-uses (use prev)
-	  (let ((new (make-continuation)))
-	    (delete-continuation-use use)
-	    (add-continuation-use use new))))
+		   (lvar-uses (return-result result-return)))))
+	(when (ctran-use prev)
+	  (node-ends-block (ctran-use prev))))
 
       (dolist (lambda (rest lambdas))
 	(merge-1-toplevel-lambda result-lambda lambda)))