lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp

   1 //===-- MipsMCTargetDesc.cpp - Mips Target Descriptions -------------------===//
   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 Mips specific target descriptions.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "InstPrinter/MipsInstPrinter.h"
  15 #include "MipsELFStreamer.h"
  16 #include "MipsMCAsmInfo.h"
  17 #include "MipsMCNaCl.h"
  18 #include "MipsMCTargetDesc.h"
  19 #include "MipsTargetStreamer.h"
  20 #include "llvm/ADT/Triple.h"
  21 #include "llvm/MC/MCCodeGenInfo.h"
  22 #include "llvm/MC/MCELFStreamer.h"
  23 #include "llvm/MC/MCInstrInfo.h"
  24 #include "llvm/MC/MCRegisterInfo.h"
  25 #include "llvm/MC/MCSubtargetInfo.h"
  26 #include "llvm/MC/MCSymbol.h"
  27 #include "llvm/MC/MachineLocation.h"
  28 #include "llvm/Support/CommandLine.h"
  29 #include "llvm/Support/ErrorHandling.h"
  30 #include "llvm/Support/FormattedStream.h"
  31 #include "llvm/Support/TargetRegistry.h"
  32
  33 using namespace llvm;
  34
  35 #define GET_INSTRINFO_MC_DESC
  36 #include "MipsGenInstrInfo.inc"
  37
  38 #define GET_SUBTARGETINFO_MC_DESC
  39 #include "MipsGenSubtargetInfo.inc"
  40
  41 #define GET_REGINFO_MC_DESC
  42 #include "MipsGenRegisterInfo.inc"
  43
  44 /// Select the Mips CPU for the given triple and cpu name.
  45 /// FIXME: Merge with the copy in MipsSubtarget.cpp
  46 static inline StringRef selectMipsCPU(StringRef TT, StringRef CPU) {
  47   if (CPU.empty() || CPU == "generic") {
  48     Triple TheTriple(TT);
  49     if (TheTriple.getArch() == Triple::mips ||
  50         TheTriple.getArch() == Triple::mipsel)
  51       CPU = "mips32";
  52     else
  53       CPU = "mips64";
  54   }
  55   return CPU;
  56 }
  57
  58 static MCInstrInfo *createMipsMCInstrInfo() {
  59   MCInstrInfo *X = new MCInstrInfo();
  60   InitMipsMCInstrInfo(X);
  61   return X;
  62 }
  63
  64 static MCRegisterInfo *createMipsMCRegisterInfo(StringRef TT) {
  65   MCRegisterInfo *X = new MCRegisterInfo();
  66   InitMipsMCRegisterInfo(X, Mips::RA);
  67   return X;
  68 }
  69
  70 static MCSubtargetInfo *createMipsMCSubtargetInfo(StringRef TT, StringRef CPU,
  71                                                   StringRef FS) {
  72   CPU = selectMipsCPU(TT, CPU);
  73   MCSubtargetInfo *X = new MCSubtargetInfo();
  74   InitMipsMCSubtargetInfo(X, TT, CPU, FS);
  75   return X;
  76 }
  77
  78 static MCAsmInfo *createMipsMCAsmInfo(const MCRegisterInfo &MRI, StringRef TT) {
  79   MCAsmInfo *MAI = new MipsMCAsmInfo(TT);
  80
  81   unsigned SP = MRI.getDwarfRegNum(Mips::SP, true);
  82   MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, SP, 0);
  83   MAI->addInitialFrameState(Inst);
  84
  85   return MAI;
  86 }
  87
  88 static MCCodeGenInfo *createMipsMCCodeGenInfo(StringRef TT, Reloc::Model RM,
  89                                               CodeModel::Model CM,
  90                                               CodeGenOpt::Level OL) {
  91   MCCodeGenInfo *X = new MCCodeGenInfo();
  92   if (CM == CodeModel::JITDefault)
  93     RM = Reloc::Static;
  94   else if (RM == Reloc::Default)
  95     RM = Reloc::PIC_;
  96   X->InitMCCodeGenInfo(RM, CM, OL);
  97   return X;
  98 }
  99
 100 static MCInstPrinter *createMipsMCInstPrinter(const Target &T,
 101                                               unsigned SyntaxVariant,
 102                                               const MCAsmInfo &MAI,
 103                                               const MCInstrInfo &MII,
 104                                               const MCRegisterInfo &MRI,
 105                                               const MCSubtargetInfo &STI) {
 106   return new MipsInstPrinter(MAI, MII, MRI);
 107 }
 108
 109 static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
 110                                     MCContext &Context, MCAsmBackend &MAB,
 111                                     raw_ostream &OS, MCCodeEmitter *Emitter,
 112                                     const MCSubtargetInfo &STI, bool RelaxAll) {
 113   MCStreamer *S;
 114   if (!Triple(TT).isOSNaCl())
 115     S = createMipsELFStreamer(Context, MAB, OS, Emitter, STI, RelaxAll);
 116   else
 117     S = createMipsNaClELFStreamer(Context, MAB, OS, Emitter, STI, RelaxAll);
 118   new MipsTargetELFStreamer(*S, STI);
 119   return S;
 120 }
 121
 122 static MCStreamer *
 123 createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
 124                     bool isVerboseAsm, bool useDwarfDirectory,
 125                     MCInstPrinter *InstPrint, MCCodeEmitter *CE,
 126                     MCAsmBackend *TAB, bool ShowInst) {
 127   MCStreamer *S = llvm::createAsmStreamer(
 128       Ctx, OS, isVerboseAsm, useDwarfDirectory, InstPrint, CE, TAB, ShowInst);
 129   new MipsTargetAsmStreamer(*S, OS);
 130   return S;
 131 }
 132
 133 static MCStreamer *createMipsNullStreamer(MCContext &Ctx) {
 134   MCStreamer *S = llvm::createNullStreamer(Ctx);
 135   new MipsTargetStreamer(*S);
 136   return S;
 137 }
 138
 139 extern "C" void LLVMInitializeMipsTargetMC() {
 140   // Register the MC asm info.
 141   RegisterMCAsmInfoFn X(TheMipsTarget, createMipsMCAsmInfo);
 142   RegisterMCAsmInfoFn Y(TheMipselTarget, createMipsMCAsmInfo);
 143   RegisterMCAsmInfoFn A(TheMips64Target, createMipsMCAsmInfo);
 144   RegisterMCAsmInfoFn B(TheMips64elTarget, createMipsMCAsmInfo);
 145
 146   // Register the MC codegen info.
 147   TargetRegistry::RegisterMCCodeGenInfo(TheMipsTarget,
 148                                         createMipsMCCodeGenInfo);
 149   TargetRegistry::RegisterMCCodeGenInfo(TheMipselTarget,
 150                                         createMipsMCCodeGenInfo);
 151   TargetRegistry::RegisterMCCodeGenInfo(TheMips64Target,
 152                                         createMipsMCCodeGenInfo);
 153   TargetRegistry::RegisterMCCodeGenInfo(TheMips64elTarget,
 154                                         createMipsMCCodeGenInfo);
 155
 156   // Register the MC instruction info.
 157   TargetRegistry::RegisterMCInstrInfo(TheMipsTarget, createMipsMCInstrInfo);
 158   TargetRegistry::RegisterMCInstrInfo(TheMipselTarget, createMipsMCInstrInfo);
 159   TargetRegistry::RegisterMCInstrInfo(TheMips64Target, createMipsMCInstrInfo);
 160   TargetRegistry::RegisterMCInstrInfo(TheMips64elTarget,
 161                                       createMipsMCInstrInfo);
 162
 163   // Register the MC register info.
 164   TargetRegistry::RegisterMCRegInfo(TheMipsTarget, createMipsMCRegisterInfo);
 165   TargetRegistry::RegisterMCRegInfo(TheMipselTarget, createMipsMCRegisterInfo);
 166   TargetRegistry::RegisterMCRegInfo(TheMips64Target, createMipsMCRegisterInfo);
 167   TargetRegistry::RegisterMCRegInfo(TheMips64elTarget,
 168                                     createMipsMCRegisterInfo);
 169
 170   // Register the MC Code Emitter
 171   TargetRegistry::RegisterMCCodeEmitter(TheMipsTarget,
 172                                         createMipsMCCodeEmitterEB);
 173   TargetRegistry::RegisterMCCodeEmitter(TheMipselTarget,
 174                                         createMipsMCCodeEmitterEL);
 175   TargetRegistry::RegisterMCCodeEmitter(TheMips64Target,
 176                                         createMipsMCCodeEmitterEB);
 177   TargetRegistry::RegisterMCCodeEmitter(TheMips64elTarget,
 178                                         createMipsMCCodeEmitterEL);
 179
 180   // Register the object streamer.
 181   TargetRegistry::RegisterMCObjectStreamer(TheMipsTarget, createMCStreamer);
 182   TargetRegistry::RegisterMCObjectStreamer(TheMipselTarget, createMCStreamer);
 183   TargetRegistry::RegisterMCObjectStreamer(TheMips64Target, createMCStreamer);
 184   TargetRegistry::RegisterMCObjectStreamer(TheMips64elTarget,
 185                                            createMCStreamer);
 186
 187   // Register the asm streamer.
 188   TargetRegistry::RegisterAsmStreamer(TheMipsTarget, createMCAsmStreamer);
 189   TargetRegistry::RegisterAsmStreamer(TheMipselTarget, createMCAsmStreamer);
 190   TargetRegistry::RegisterAsmStreamer(TheMips64Target, createMCAsmStreamer);
 191   TargetRegistry::RegisterAsmStreamer(TheMips64elTarget, createMCAsmStreamer);
 192
 193   TargetRegistry::RegisterNullStreamer(TheMipsTarget, createMipsNullStreamer);
 194   TargetRegistry::RegisterNullStreamer(TheMipselTarget, createMipsNullStreamer);
 195   TargetRegistry::RegisterNullStreamer(TheMips64Target, createMipsNullStreamer);
 196   TargetRegistry::RegisterNullStreamer(TheMips64elTarget,
 197                                        createMipsNullStreamer);
 198
 199   // Register the asm backend.
 200   TargetRegistry::RegisterMCAsmBackend(TheMipsTarget,
 201                                        createMipsAsmBackendEB32);
 202   TargetRegistry::RegisterMCAsmBackend(TheMipselTarget,
 203                                        createMipsAsmBackendEL32);
 204   TargetRegistry::RegisterMCAsmBackend(TheMips64Target,
 205                                        createMipsAsmBackendEB64);
 206   TargetRegistry::RegisterMCAsmBackend(TheMips64elTarget,
 207                                        createMipsAsmBackendEL64);
 208
 209   // Register the MC subtarget info.
 210   TargetRegistry::RegisterMCSubtargetInfo(TheMipsTarget,
 211                                           createMipsMCSubtargetInfo);
 212   TargetRegistry::RegisterMCSubtargetInfo(TheMipselTarget,
 213                                           createMipsMCSubtargetInfo);
 214   TargetRegistry::RegisterMCSubtargetInfo(TheMips64Target,
 215                                           createMipsMCSubtargetInfo);
 216   TargetRegistry::RegisterMCSubtargetInfo(TheMips64elTarget,
 217                                           createMipsMCSubtargetInfo);
 218
 219   // Register the MCInstPrinter.
 220   TargetRegistry::RegisterMCInstPrinter(TheMipsTarget,
 221                                         createMipsMCInstPrinter);
 222   TargetRegistry::RegisterMCInstPrinter(TheMipselTarget,
 223                                         createMipsMCInstPrinter);
 224   TargetRegistry::RegisterMCInstPrinter(TheMips64Target,
 225                                         createMipsMCInstPrinter);
 226   TargetRegistry::RegisterMCInstPrinter(TheMips64elTarget,
 227                                         createMipsMCInstPrinter);
 228 }