1 files changed, 5 insertions, 3 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/LShiftU64.asm b/MdePkg/Library/BaseLib/Ia32/LShiftU64.asm
index a5447e8f58..15b724270c 100644
--- a/MdePkg/Library/BaseLib/Ia32/LShiftU64.asm
+++ b/MdePkg/Library/BaseLib/Ia32/LShiftU64.asm
@@ -1,6 +1,6 @@
 ;------------------------------------------------------------------------------
 ;
-; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
 ; This program and the accompanying materials
 ; are licensed and made available under the terms and conditions of the BSD License
 ; which accompanies this distribution.  The full text of the license may be found at
@@ -36,8 +36,10 @@ InternalMathLShiftU64   PROC
     xor     eax, eax
     mov     edx, [esp + 4]
     test    cl, 32                      ; Count >= 32?
-    cmovz   eax, edx
-    cmovz   edx, [esp + 8]
+    jnz     @F
+    mov     eax, edx
+    mov     edx, [esp + 8]
+@@:    
     shld    edx, eax, cl
     shl     eax, cl
     ret