lib/Target/Alpha/AlphaSubtarget.cpp

   1 //===- AlphaSubtarget.cpp - Alpha Subtarget Information ---------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file implements the Alpha specific subclass of TargetSubtargetInfo.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "AlphaSubtarget.h"
  15 #include "Alpha.h"
  16 #include "llvm/Target/TargetRegistry.h"
  17
  18 #define GET_SUBTARGETINFO_ENUM
  19 #define GET_SUBTARGETINFO_MC_DESC
  20 #define GET_SUBTARGETINFO_TARGET_DESC
  21 #define GET_SUBTARGETINFO_CTOR
  22 #include "AlphaGenSubtargetInfo.inc"
  23
  24 using namespace llvm;
  25
  26 AlphaSubtarget::AlphaSubtarget(const std::string &TT, const std::string &CPU,
  27                                const std::string &FS)
  28   : AlphaGenSubtargetInfo(TT, CPU, FS), HasCT(false) {
  29   std::string CPUName = CPU;
  30   if (CPUName.empty())
  31     CPUName = "generic";
  32
  33   // Parse features string.
  34   ParseSubtargetFeatures(CPUName, FS);
  35
  36   // Initialize scheduling itinerary for the specified CPU.
  37   InstrItins = getInstrItineraryForCPU(CPUName);
  38 }
  39
  40 MCSubtargetInfo *createAlphaMCSubtargetInfo(StringRef TT, StringRef CPU,
  41                                             StringRef FS) {
  42   MCSubtargetInfo *X = new MCSubtargetInfo();
  43   InitAlphaMCSubtargetInfo(X, CPU, FS);
  44   return X;
  45 }
  46
  47 extern "C" void LLVMInitializeAlphaMCSubtargetInfo() {
  48   TargetRegistry::RegisterMCSubtargetInfo(TheAlphaTarget,
  49                                           createAlphaMCSubtargetInfo);
  50 }