X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fcompiler%2Fx86%2Farith.lisp;h=ade76894452a3f916a0ae8dd25f7fc6d008b2467;hb=bffa99d35c7d50ac46b9eb7dbe25d1ab1a0e6145;hp=9e8e07ee86ce79083da16846c2614f85f7770783;hpb=1ca02b016cddad0800852a9d8fe7a3cb6cc7a01d;p=sbcl.git

diff --git a/src/compiler/x86/arith.lisp b/src/compiler/x86/arith.lisp
index 9e8e07e..ade7689 100644
--- a/src/compiler/x86/arith.lisp
+++ b/src/compiler/x86/arith.lisp
@@ -1212,6 +1212,14 @@
              fast-ash-c/unsigned=>unsigned)
   (:translate ash-left-mod32))
 
+(define-vop (fast-ash-left-mod32/unsigned=>unsigned
+             fast-ash-left/unsigned=>unsigned))
+(deftransform ash-left-mod32 ((integer count)
+			      ((unsigned-byte 32) (unsigned-byte 5)))
+  (when (sb!c::constant-lvar-p count)
+    (sb!c::give-up-ir1-transform))
+  '(%primitive fast-ash-left-mod32/unsigned=>unsigned integer count))
+
 (in-package "SB!C")
 
 (defknown sb!vm::%lea-mod32 (integer integer (member 1 2 4 8) (signed-byte 32))