From f30edc9536681f0eca452a97b6ed2c9df42f86f6 Mon Sep 17 00:00:00 2001
From: ram <ram>
Date: Sun, 8 Dec 1991 17:23:41 +0000
Subject: [PATCH] Clear out NODE-DERIVED-TYPE in references to escape functions
 before substution to prevent type inference anomalies.

---
 compiler/envanal.lisp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/compiler/envanal.lisp b/compiler/envanal.lisp
index f8d5eb488..703720987 100644
--- a/compiler/envanal.lisp
+++ b/compiler/envanal.lisp
@@ -7,7 +7,7 @@
 ;;; Scott Fahlman or slisp-group@cs.cmu.edu.
 ;;;
 (ext:file-comment
-  "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/envanal.lisp,v 1.18 1991/11/09 22:07:01 ram Exp $")
+  "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/envanal.lisp,v 1.19 1991/12/08 17:23:41 ram Exp $")
 ;;;
 ;;; **********************************************************************
 ;;;
@@ -245,6 +245,9 @@
       (assert info)
       (close-over info (node-environment exit) env)
       (when (eq (functional-kind exit-fun) :escape)
+	(mapc #'(lambda (x)
+		  (setf (node-derived-type x) *wild-type*))
+	      (leaf-refs exit-fun))
 	(substitute-leaf (find-constant info) exit-fun)
 	(let ((node (block-last (nlx-info-target info))))
 	  (delete-continuation-use node)
-- 
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