MdePkg/BaseLib: Support IA32 processors without CMOVx

Remove use of CMOVx instruction from IA32 assembly files in BaseLib.  
This matches compiler flags for all supported C compilers.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17213 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseLib/Ia32/RShiftU64.S

@@ -1,6 +1,6 @@
 #------------------------------------------------------------------------------
 #
-# Copyright (c) 2006 - 2008, 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
@@ -37,8 +37,10 @@ ASM_PFX(InternalMathRShiftU64):
     xorl    %edx, %edx
     movl    8(%esp), %eax
     testb   $32, %cl                    # Count >= 32?
-    cmovz   %eax, %edx
-    cmovz   0x4(%esp), %eax
+    jnz     L0
+    movl    %eax, %edx
+    movl    0x4(%esp), %eax
+L0:    
     shrdl   %cl, %edx, %eax
     shr     %cl, %edx
     ret