lib/Target/MBlaze/MCTargetDesc/MBlazeMCTargetDesc.cpp

   1 //===-- MBlazeMCTargetDesc.cpp - MBlaze Target Descriptions -----*- 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 provides MBlaze specific target descriptions.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "MBlazeMCTargetDesc.h"
  15 #include "MBlazeMCAsmInfo.h"
  16 #include "InstPrinter/MBlazeInstPrinter.h"
  17 #include "llvm/MC/MCCodeGenInfo.h"
  18 #include "llvm/MC/MCInstrInfo.h"
  19 #include "llvm/MC/MCRegisterInfo.h"
  20 #include "llvm/MC/MCStreamer.h"
  21 #include "llvm/MC/MCSubtargetInfo.h"
  22 #include "llvm/Support/ErrorHandling.h"
  23 #include "llvm/Support/TargetRegistry.h"
  24
  25 #define GET_INSTRINFO_MC_DESC
  26 #include "MBlazeGenInstrInfo.inc"
  27
  28 #define GET_SUBTARGETINFO_MC_DESC
  29 #include "MBlazeGenSubtargetInfo.inc"
  30
  31 #define GET_REGINFO_MC_DESC
  32 #include "MBlazeGenRegisterInfo.inc"
  33
  34 using namespace llvm;
  35
  36
  37 static MCInstrInfo *createMBlazeMCInstrInfo() {
  38   MCInstrInfo *X = new MCInstrInfo();
  39   InitMBlazeMCInstrInfo(X);
  40   return X;
  41 }
  42
  43 static MCRegisterInfo *createMBlazeMCRegisterInfo(StringRef TT) {
  44   MCRegisterInfo *X = new MCRegisterInfo();
  45   InitMBlazeMCRegisterInfo(X, MBlaze::R15);
  46   return X;
  47 }
  48
  49 static MCSubtargetInfo *createMBlazeMCSubtargetInfo(StringRef TT, StringRef CPU,
  50                                                     StringRef FS) {
  51   MCSubtargetInfo *X = new MCSubtargetInfo();
  52   InitMBlazeMCSubtargetInfo(X, TT, CPU, FS);
  53   return X;
  54 }
  55
  56 static MCAsmInfo *createMCAsmInfo(const Target &T, StringRef TT) {
  57   Triple TheTriple(TT);
  58   switch (TheTriple.getOS()) {
  59   default:
  60     return new MBlazeMCAsmInfo();
  61   }
  62 }
  63
  64 static MCCodeGenInfo *createMBlazeMCCodeGenInfo(StringRef TT, Reloc::Model RM,
  65                                                 CodeModel::Model CM) {
  66   MCCodeGenInfo *X = new MCCodeGenInfo();
  67   if (RM == Reloc::Default)
  68     RM = Reloc::Static;
  69   if (CM == CodeModel::Default)
  70     CM = CodeModel::Small;
  71   X->InitMCCodeGenInfo(RM, CM);
  72   return X;
  73 }
  74
  75 static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
  76                                     MCContext &Ctx, MCAsmBackend &MAB,
  77                                     raw_ostream &_OS,
  78                                     MCCodeEmitter *_Emitter,
  79                                     bool RelaxAll,
  80                                     bool NoExecStack) {
  81   Triple TheTriple(TT);
  82
  83   if (TheTriple.isOSDarwin()) {
  84     llvm_unreachable("MBlaze does not support Darwin MACH-O format");
  85     return NULL;
  86   }
  87
  88   if (TheTriple.isOSWindows()) {
  89     llvm_unreachable("MBlaze does not support Windows COFF format");
  90     return NULL;
  91   }
  92
  93   return createELFStreamer(Ctx, MAB, _OS, _Emitter, RelaxAll, NoExecStack);
  94 }
  95
  96 static MCInstPrinter *createMBlazeMCInstPrinter(const Target &T,
  97                                                 unsigned SyntaxVariant,
  98                                                 const MCAsmInfo &MAI) {
  99   if (SyntaxVariant == 0)
 100     return new MBlazeInstPrinter(MAI);
 101   return 0;
 102 }
 103
 104 // Force static initialization.
 105 extern "C" void LLVMInitializeMBlazeTargetMC() {
 106   // Register the MC asm info.
 107   RegisterMCAsmInfoFn X(TheMBlazeTarget, createMCAsmInfo);
 108
 109   // Register the MC codegen info.
 110   TargetRegistry::RegisterMCCodeGenInfo(TheMBlazeTarget,
 111                                         createMBlazeMCCodeGenInfo);
 112
 113   // Register the MC instruction info.
 114   TargetRegistry::RegisterMCInstrInfo(TheMBlazeTarget, createMBlazeMCInstrInfo);
 115
 116   // Register the MC register info.
 117   TargetRegistry::RegisterMCRegInfo(TheMBlazeTarget,
 118                                     createMBlazeMCRegisterInfo);
 119
 120   // Register the MC subtarget info.
 121   TargetRegistry::RegisterMCSubtargetInfo(TheMBlazeTarget,
 122                                           createMBlazeMCSubtargetInfo);
 123
 124   // Register the MC code emitter
 125   TargetRegistry::RegisterMCCodeEmitter(TheMBlazeTarget,
 126                                         llvm::createMBlazeMCCodeEmitter);
 127
 128   // Register the asm backend
 129   TargetRegistry::RegisterMCAsmBackend(TheMBlazeTarget,
 130                                        createMBlazeAsmBackend);
 131
 132   // Register the object streamer
 133   TargetRegistry::RegisterMCObjectStreamer(TheMBlazeTarget,
 134                                            createMCStreamer);
 135
 136   // Register the MCInstPrinter.
 137   TargetRegistry::RegisterMCInstPrinter(TheMBlazeTarget,
 138                                         createMBlazeMCInstPrinter);
 139 }