[MIPS] Initial support for MIPS architecture.

llvm/lib/Target/Mips/MipsSubtarget.cpp

 //===- MipsSubtarget.cpp - Mips Subtarget Information -----------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the Mips specific subclass of TargetSubtargetInfo.
@@ skipping 10 matching lines @@
 
 using namespace llvm;
 
 MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
                              const std::string &FS, bool little) :
   MipsGenSubtargetInfo(TT, CPU, FS),
   MipsArchVersion(Mips32), MipsABI(UnknownABI), IsLittle(little), 
   IsSingleFloat(false), IsFP64bit(false), IsGP64bit(false), HasVFPU(false),
   IsLinux(true), HasSEInReg(false), HasCondMov(false), HasMulDivAdd(false),
   HasMinMax(false), HasSwap(false), HasBitCount(false)
+  // @LOCALMOD-START
+  , TargetTriple(TT)
+  // @LOCALMOD-END
 {
   std::string CPUName = CPU;
   if (CPUName.empty())
     CPUName = "mips32r1";
 
   // Parse features string.
   ParseSubtargetFeatures(CPUName, FS);
 
   // Initialize scheduling itinerary for the specified CPU.
   InstrItins = getInstrItineraryForCPU(CPUName);
 
   // Set MipsABI if it hasn't been set yet.
   if (MipsABI == UnknownABI)
     MipsABI = hasMips64() ? N64 : O32; 
 
   // Check if Architecture and ABI are compatible.
   assert(((!hasMips64() && (isABI_O32() || isABI_EABI())) ||
           (hasMips64() && (isABI_N32() || isABI_N64()))) &&
          "Invalid  Arch & ABI pair.");
 
   // Is the target system Linux ?
   if (TT.find("linux") == std::string::npos)
     IsLinux = false;
 }