X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fseqtran.lisp;h=ed8cae706b9093cd5664f50bcbcb29a20fe07a75;hb=3a2c2a2217f77e0d1a44a581c83e0311ebc2594a;hp=5c1874dcc594d21f0be329b13af43fc47d2eba33;hpb=380ea897e2c12a01547f918f73e8a1db0a3a0373;p=sbcl.git

diff --git a/src/compiler/seqtran.lisp b/src/compiler/seqtran.lisp
index 5c1874d..ed8cae7 100644
--- a/src/compiler/seqtran.lisp
+++ b/src/compiler/seqtran.lisp
@@ -349,7 +349,7 @@
 	    (if (null splice)
 		(setq list (cdr x))
 		(rplacd splice (cdr x))))
-	   (T (setq splice x)))))
+	   (t (setq splice x)))))
 
 (deftransform fill ((seq item &key (start 0) (end (length seq)))
 		    (vector t &key (:start t) (:end index))
@@ -683,6 +683,10 @@
 (defun valid-bit-bash-saetp-p (saetp)
   ;; BIT-BASHing isn't allowed on simple vectors that contain pointers
   (and (not (eq t (sb!vm:saetp-specifier saetp)))
+       ;; Disallowing (VECTOR NIL) also means that we won't transform
+       ;; sequence functions into bit-bashing code and we let the
+       ;; generic sequence functions signal errors if necessary.
+       (not (zerop (sb!vm:saetp-n-bits saetp)))
        ;; Due to limitations with the current BIT-BASHing code, we can't
        ;; BIT-BASH reliably on arrays whose element types are larger
        ;; than the word size.