src/llvm/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,
 113                                     bool RelaxAll, bool NoExecStack) {
 114   MCStreamer *S;
 115   if (!Triple(TT).isOSNaCl())
 116     S = createMipsELFStreamer(Context, MAB, OS, Emitter, STI, RelaxAll,
 117                               NoExecStack);
 118   else
 119     S = createMipsNaClELFStreamer(Context, MAB, OS, Emitter, STI, RelaxAll,
 120                                   NoExecStack);
 121   new MipsTargetELFStreamer(*S, STI);
 122   return S;
 123 }
 124
 125 static MCStreamer *
 126 createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
 127                     bool isVerboseAsm, bool useDwarfDirectory,
 128                     MCInstPrinter *InstPrint, MCCodeEmitter *CE,
 129                     MCAsmBackend *TAB, bool ShowInst) {
 130   MCStreamer *S = llvm::createAsmStreamer(
 131       Ctx, OS, isVerboseAsm, useDwarfDirectory, InstPrint, CE, TAB, ShowInst);
 132   new MipsTargetAsmStreamer(*S, OS);
 133   return S;
 134 }
 135
 136 static MCStreamer *createMipsNullStreamer(MCContext &Ctx) {
 137   MCStreamer *S = llvm::createNullStreamer(Ctx);
 138   new MipsTargetStreamer(*S);
 139   return S;
 140 }
 141
 142 extern "C" void LLVMInitializeMipsTargetMC() {
 143   // Register the MC asm info.
 144   RegisterMCAsmInfoFn X(TheMipsTarget, createMipsMCAsmInfo);
 145   RegisterMCAsmInfoFn Y(TheMipselTarget, createMipsMCAsmInfo);
 146   RegisterMCAsmInfoFn A(TheMips64Target, createMipsMCAsmInfo);
 147   RegisterMCAsmInfoFn B(TheMips64elTarget, createMipsMCAsmInfo);
 148
 149   // Register the MC codegen info.
 150   TargetRegistry::RegisterMCCodeGenInfo(TheMipsTarget,
 151                                         createMipsMCCodeGenInfo);
 152   TargetRegistry::RegisterMCCodeGenInfo(TheMipselTarget,
 153                                         createMipsMCCodeGenInfo);
 154   TargetRegistry::RegisterMCCodeGenInfo(TheMips64Target,
 155                                         createMipsMCCodeGenInfo);
 156   TargetRegistry::RegisterMCCodeGenInfo(TheMips64elTarget,
 157                                         createMipsMCCodeGenInfo);
 158
 159   // Register the MC instruction info.
 160   TargetRegistry::RegisterMCInstrInfo(TheMipsTarget, createMipsMCInstrInfo);
 161   TargetRegistry::RegisterMCInstrInfo(TheMipselTarget, createMipsMCInstrInfo);
 162   TargetRegistry::RegisterMCInstrInfo(TheMips64Target, createMipsMCInstrInfo);
 163   TargetRegistry::RegisterMCInstrInfo(TheMips64elTarget,
 164                                       createMipsMCInstrInfo);
 165
 166   // Register the MC register info.
 167   TargetRegistry::RegisterMCRegInfo(TheMipsTarget, createMipsMCRegisterInfo);
 168   TargetRegistry::RegisterMCRegInfo(TheMipselTarget, createMipsMCRegisterInfo);
 169   TargetRegistry::RegisterMCRegInfo(TheMips64Target, createMipsMCRegisterInfo);
 170   TargetRegistry::RegisterMCRegInfo(TheMips64elTarget,
 171                                     createMipsMCRegisterInfo);
 172
 173   // Register the MC Code Emitter
 174   TargetRegistry::RegisterMCCodeEmitter(TheMipsTarget,
 175                                         createMipsMCCodeEmitterEB);
 176   TargetRegistry::RegisterMCCodeEmitter(TheMipselTarget,
 177                                         createMipsMCCodeEmitterEL);
 178   TargetRegistry::RegisterMCCodeEmitter(TheMips64Target,
 179                                         createMipsMCCodeEmitterEB);
 180   TargetRegistry::RegisterMCCodeEmitter(TheMips64elTarget,
 181                                         createMipsMCCodeEmitterEL);
 182
 183   // Register the object streamer.
 184   TargetRegistry::RegisterMCObjectStreamer(TheMipsTarget, createMCStreamer);
 185   TargetRegistry::RegisterMCObjectStreamer(TheMipselTarget, createMCStreamer);
 186   TargetRegistry::RegisterMCObjectStreamer(TheMips64Target, createMCStreamer);
 187   TargetRegistry::RegisterMCObjectStreamer(TheMips64elTarget,
 188                                            createMCStreamer);
 189
 190   // Register the asm streamer.
 191   TargetRegistry::RegisterAsmStreamer(TheMipsTarget, createMCAsmStreamer);
 192   TargetRegistry::RegisterAsmStreamer(TheMipselTarget, createMCAsmStreamer);
 193   TargetRegistry::RegisterAsmStreamer(TheMips64Target, createMCAsmStreamer);
 194   TargetRegistry::RegisterAsmStreamer(TheMips64elTarget, createMCAsmStreamer);
 195
 196   TargetRegistry::RegisterNullStreamer(TheMipsTarget, createMipsNullStreamer);
 197   TargetRegistry::RegisterNullStreamer(TheMipselTarget, createMipsNullStreamer);
 198   TargetRegistry::RegisterNullStreamer(TheMips64Target, createMipsNullStreamer);
 199   TargetRegistry::RegisterNullStreamer(TheMips64elTarget,
 200                                        createMipsNullStreamer);
 201
 202   // Register the asm backend.
 203   TargetRegistry::RegisterMCAsmBackend(TheMipsTarget,
 204                                        createMipsAsmBackendEB32);
 205   TargetRegistry::RegisterMCAsmBackend(TheMipselTarget,
 206                                        createMipsAsmBackendEL32);
 207   TargetRegistry::RegisterMCAsmBackend(TheMips64Target,
 208                                        createMipsAsmBackendEB64);
 209   TargetRegistry::RegisterMCAsmBackend(TheMips64elTarget,
 210                                        createMipsAsmBackendEL64);
 211
 212   // Register the MC subtarget info.
 213   TargetRegistry::RegisterMCSubtargetInfo(TheMipsTarget,
 214                                           createMipsMCSubtargetInfo);
 215   TargetRegistry::RegisterMCSubtargetInfo(TheMipselTarget,
 216                                           createMipsMCSubtargetInfo);
 217   TargetRegistry::RegisterMCSubtargetInfo(TheMips64Target,
 218                                           createMipsMCSubtargetInfo);
 219   TargetRegistry::RegisterMCSubtargetInfo(TheMips64elTarget,
 220                                           createMipsMCSubtargetInfo);
 221
 222   // Register the MCInstPrinter.
 223   TargetRegistry::RegisterMCInstPrinter(TheMipsTarget,
 224                                         createMipsMCInstPrinter);
 225   TargetRegistry::RegisterMCInstPrinter(TheMipselTarget,
 226                                         createMipsMCInstPrinter);
 227   TargetRegistry::RegisterMCInstPrinter(TheMips64Target,
 228                                         createMipsMCInstPrinter);
 229   TargetRegistry::RegisterMCInstPrinter(TheMips64elTarget,
 230                                         createMipsMCInstPrinter);
 231 }