1.0.46.27: fix mach port leakage

[sbcl.git] / src / compiler / locall.lisp

diff --git a/src/compiler/locall.lisp b/src/compiler/locall.lisp
index 1c6db26..e820d46 100644 (file)
--- a/src/compiler/locall.lisp
+++ b/src/compiler/locall.lisp
@@ -43,36 +43,6 @@
              (setf (car args) nil)))
   (values))
 
-(defun handle-nested-dynamic-extent-lvars (dx lvar)
-  (let ((uses (lvar-uses lvar)))
-    ;; DX value generators must end their blocks: see UPDATE-UVL-LIVE-SETS.
-    ;; Uses of mupltiple-use LVARs already end their blocks, so we just need
-    ;; to process uses of single-use LVARs.
-    (when (node-p uses)
-      (node-ends-block uses))
-    ;; If this LVAR's USE is good for DX, it is either a CAST, or it
-    ;; must be a regular combination whose arguments are potentially DX as well.
-    (flet ((recurse (use)
-             (etypecase use
-               (cast
-                (handle-nested-dynamic-extent-lvars dx (cast-value use)))
-               (combination
-                (loop for arg in (combination-args use)
-                      ;; deleted args show up as NIL here
-                      when (and arg (lvar-good-for-dx-p arg dx))
-                      append (handle-nested-dynamic-extent-lvars dx arg)))
-               (ref
-                (let* ((other (trivial-lambda-var-ref-lvar use)))
-                  (unless (eq other lvar)
-                    (handle-nested-dynamic-extent-lvars dx other)))))))
-      (cons (cons dx lvar)
-            (if (listp uses)
-                (loop for use in uses
-                      when (use-good-for-dx-p use dx)
-                      nconc (recurse use))
-                (when (use-good-for-dx-p uses dx)
-                  (recurse uses)))))))
-
 (defun recognize-dynamic-extent-lvars (call fun)
   (declare (type combination call) (type clambda fun))
   (loop for arg in (basic-combination-args call)
@@ -239,25 +209,29 @@
   (declare (type functional fun))
   (aver (null (functional-entry-fun fun)))
   (with-ir1-environment-from-node (lambda-bind (main-entry fun))
-    (let ((res (ir1-convert-lambda (make-xep-lambda-expression fun)
+    (let ((xep (ir1-convert-lambda (make-xep-lambda-expression fun)
                                    :debug-name (debug-name
                                                 'xep (leaf-debug-name fun))
                                    :system-lambda t)))
-      (setf (functional-kind res) :external
-            (leaf-ever-used res) t
-            (functional-entry-fun res) fun
-            (functional-entry-fun fun) res
+      (setf (functional-kind xep) :external
+            (leaf-ever-used xep) t
+            (functional-entry-fun xep) fun
+            (functional-entry-fun fun) xep
             (component-reanalyze *current-component*) t)
       (reoptimize-component *current-component* :maybe)
-      (etypecase fun
-        (clambda
-         (locall-analyze-fun-1 fun))
-        (optional-dispatch
-         (dolist (ep (optional-dispatch-entry-points fun))
-           (locall-analyze-fun-1 (force ep)))
-         (when (optional-dispatch-more-entry fun)
-           (locall-analyze-fun-1 (optional-dispatch-more-entry fun)))))
-      res)))
+      (locall-analyze-xep-entry-point fun)
+      xep)))
+
+(defun locall-analyze-xep-entry-point (fun)
+  (declare (type functional fun))
+  (etypecase fun
+    (clambda
+     (locall-analyze-fun-1 fun))
+    (optional-dispatch
+     (dolist (ep (optional-dispatch-entry-points fun))
+       (locall-analyze-fun-1 (force ep)))
+     (when (optional-dispatch-more-entry fun)
+       (locall-analyze-fun-1 (optional-dispatch-more-entry fun))))))
 
 ;;; Notice a REF that is not in a local-call context. If the REF is
 ;;; already to an XEP, then do nothing, otherwise change it to the
@@ -502,13 +476,13 @@
   (declare (type ref ref) (type mv-combination call) (type functional fun))
   (when (and (looks-like-an-mv-bind fun)
              (singleton-p (leaf-refs fun))
-             (singleton-p (basic-combination-args call)))
+             (singleton-p (basic-combination-args call))
+             (not (functional-entry-fun fun)))
     (let* ((*current-component* (node-component ref))
            (ep (optional-dispatch-entry-point-fun
                 fun (optional-dispatch-max-args fun))))
       (when (null (leaf-refs ep))
         (aver (= (optional-dispatch-min-args fun) 0))
-        (aver (not (functional-entry-fun fun)))
         (setf (basic-combination-kind call) :local)
         (sset-adjoin ep (lambda-calls-or-closes (node-home-lambda call)))
         (merge-tail-sets call ep)