From 3c81d35e7dd178fe245230892a0cd01a65175f49 Mon Sep 17 00:00:00 2001 From: Mon P Wang Date: Sun, 23 Nov 2008 04:37:22 +0000 Subject: [PATCH] Added -disable-mmx using a patch from Preston Gurd. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59901 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86ISelLowering.cpp | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 2348191ebaa..869b9389978 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -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 +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); -- 2.34.1