X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fgeneric%2Fvm-tran.lisp;h=7031de38919acc1fcc89d5b09132181525f0ec7c;hb=cd2c70c8b5d4dcc62b968f5a9bedd3c9c8698e82;hp=80b162364fb7d5c05c13b3372520d71fa923243d;hpb=ad1aa2961d81ed8db9dac59068c6861199c29a3a;p=sbcl.git

diff --git a/src/compiler/generic/vm-tran.lisp b/src/compiler/generic/vm-tran.lisp
index 80b1623..7031de3 100644
--- a/src/compiler/generic/vm-tran.lisp
+++ b/src/compiler/generic/vm-tran.lisp
@@ -88,7 +88,8 @@
     (let ((element-type-specifier (type-specifier element-ctype)))
       `(multiple-value-bind (array index)
 	   (%data-vector-and-index array index)
-	 (declare (type (simple-array ,element-type-specifier 1) array))
+	 (declare (type (simple-array ,element-type-specifier 1) array)
+	          (type ,element-type-specifier new-value))
 	 (data-vector-set array
 			  index
 			  new-value)))))
@@ -124,14 +125,15 @@
                                      (simple-array t)
                                      *
                                      :important t)
-  (let* ((atype (continuation-type array))
-        (eltype (array-type-specialized-element-type atype)))
-    (when (eq eltype *wild-type*)
-      (give-up-ir1-transform
-       "specialized array element type not known at compile-time"))
-    `(if (array-header-p array)
-         (values (%array-data-vector array) index)
-         (values array index))))
+
+  ;; We do this solely for the -OR-GIVE-UP side effect, since we want
+  ;; to know that the type can be figured out in the end before we
+  ;; proceed, but we don't care yet what the type will turn out to be.
+  (upgraded-element-type-specifier-or-give-up array)
+
+  '(if (array-header-p array)
+       (values (%array-data-vector array) index)
+       (values array index)))
 
 ;;; transforms for getting at simple arrays of (UNSIGNED-BYTE N) when (< N 8)
 ;;;