[llvm-commits] [llvm] r59901 - /llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

[Mon P Wang]

Author: wangmp
Date: Sat Nov 22 22:37:22 2008
New Revision: 59901

URL: http://llvm.org/viewvc/llvm-project?rev=59901&view=rev
Log:
Added -disable-mmx using a patch from Preston Gurd.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=59901&r1=59900&r2=59901&view=diff

==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Sat Nov 22 22:37:22 2008
@@ -38,8 +38,12 @@
 #include "llvm/Target/TargetOptions.h"
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/StringExtras.h"
+#include "llvm/Support/CommandLine.h"
 using namespace llvm;
 
+static cl::opt<bool>
+DisableMMX("disable-mmx", cl::Hidden);
+
 // Forward declarations.
 static SDValue getMOVLMask(unsigned NumElems, SelectionDAG &DAG);
 
@@ -573,7 +577,7 @@
     setOperationAction(ISD::FEXP2, (MVT::SimpleValueType)VT, Expand);
   }
 
-  if (Subtarget->hasMMX()) {
+  if (!DisableMMX && Subtarget->hasMMX()) {
     addRegisterClass(MVT::v8i8,  X86::VR64RegisterClass);
     addRegisterClass(MVT::v4i16, X86::VR64RegisterClass);
     addRegisterClass(MVT::v2i32, X86::VR64RegisterClass);