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Added -disable-mmx using a patch from Preston Gurd.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59901 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mon P Wang 2008-11-23 04:37:22 +00:00
parent 6cce3dae90
commit 3c81d35e7d
1 changed files with 5 additions and 1 deletions
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6
lib/Target/X86/X86ISelLowering.cpp
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@ -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 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM)
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);