X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fir1opt.lisp;h=314bb79b0932a72bc3e8d4b718d01024f92b7a4f;hb=085501b44cc1cbdd9e260139d30b383372ddd1b8;hp=2bdb4dedd65aaab3ac4456f6e19f88f3d3505304;hpb=68165e850aa0700741756fead44a53642194aa39;p=sbcl.git

diff --git a/src/compiler/ir1opt.lisp b/src/compiler/ir1opt.lisp
index 2bdb4de..314bb79 100644
--- a/src/compiler/ir1opt.lisp
+++ b/src/compiler/ir1opt.lisp
@@ -451,7 +451,7 @@
 ;;; appropriate.)
 ;;;
 ;;; We call MAYBE-CONVERT-TAIL-LOCAL-CALL on each local non-MV
-;;; combination, which may change the succesor of the call to be the
+;;; combination, which may change the successor of the call to be the
 ;;; called function, and if so, checks if the call can become an
 ;;; assignment. If we convert to an assignment, we abort, since the
 ;;; RETURN has been deleted.
@@ -1830,6 +1830,17 @@
 
 ;;; TODO:
 ;;; - CAST chains;
+(defun delete-cast (cast)
+  (declare (type cast cast))
+  (let ((value (cast-value cast))
+        (lvar (node-lvar cast)))
+    (delete-filter cast lvar value)
+    (when lvar
+      (reoptimize-lvar lvar)
+      (when (lvar-single-value-p lvar)
+        (note-single-valuified-lvar lvar)))
+    (values)))
+
 (defun ir1-optimize-cast (cast &optional do-not-optimize)
   (declare (type cast cast))
   (let ((value (cast-value cast))
@@ -1838,11 +1849,7 @@
       (let ((lvar (node-lvar cast)))
         (when (values-subtypep (lvar-derived-type value)
                                (cast-asserted-type cast))
-          (delete-filter cast lvar value)
-          (when lvar
-            (reoptimize-lvar lvar)
-            (when (lvar-single-value-p lvar)
-              (note-single-valuified-lvar lvar)))
+          (delete-cast cast)
           (return-from ir1-optimize-cast t))
 
         (when (and (listp (lvar-uses value))