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 "MipsMCTargetDesc.h"
  15 #include "InstPrinter/MipsInstPrinter.h"
  16 #include "MipsMCAsmInfo.h"
  17 #include "MipsTargetStreamer.h"
  18 #include "llvm/ADT/Triple.h"
  19 #include "llvm/MC/MCCodeGenInfo.h"
  20 #include "llvm/MC/MCELFStreamer.h"
  21 #include "llvm/MC/MCInstrInfo.h"
  22 #include "llvm/MC/MCRegisterInfo.h"
  23 #include "llvm/MC/MCSubtargetInfo.h"
  24 #include "llvm/MC/MCSymbol.h"
  25 #include "llvm/MC/MachineLocation.h"
  26 #include "llvm/Support/CommandLine.h"
  27 #include "llvm/Support/ErrorHandling.h"
  28 #include "llvm/Support/FormattedStream.h"
  29 #include "llvm/Support/TargetRegistry.h"
  30
  31 #define GET_INSTRINFO_MC_DESC
  32 #include "MipsGenInstrInfo.inc"
  33
  34 #define GET_SUBTARGETINFO_MC_DESC
  35 #include "MipsGenSubtargetInfo.inc"
  36
  37 #define GET_REGINFO_MC_DESC
  38 #include "MipsGenRegisterInfo.inc"
  39
  40 using namespace llvm;
  41
  42 static std::string ParseMipsTriple(StringRef TT, StringRef CPU) {
  43   std::string MipsArchFeature;
  44   Triple TheTriple(TT);
  45
  46   if (TheTriple.getArch() == Triple::mips ||
  47       TheTriple.getArch() == Triple::mipsel) {
  48     if (CPU.empty() || CPU == "mips32") {
  49       MipsArchFeature = "+mips32";
  50     } else if (CPU == "mips32r2") {
  51       MipsArchFeature = "+mips32r2";
  52     }
  53   } else {
  54       if (CPU.empty() || CPU == "mips64") {
  55         MipsArchFeature = "+mips64";
  56       } else if (CPU == "mips64r2") {
  57         MipsArchFeature = "+mips64r2";
  58       }
  59   }
  60   return MipsArchFeature;
  61 }
  62
  63 static MCInstrInfo *createMipsMCInstrInfo() {
  64   MCInstrInfo *X = new MCInstrInfo();
  65   InitMipsMCInstrInfo(X);
  66   return X;
  67 }
  68
  69 static MCRegisterInfo *createMipsMCRegisterInfo(StringRef TT) {
  70   MCRegisterInfo *X = new MCRegisterInfo();
  71   InitMipsMCRegisterInfo(X, Mips::RA);
  72   return X;
  73 }
  74
  75 static MCSubtargetInfo *createMipsMCSubtargetInfo(StringRef TT, StringRef CPU,
  76                                                   StringRef FS) {
  77   std::string ArchFS = ParseMipsTriple(TT,CPU);
  78   if (!FS.empty()) {
  79     if (!ArchFS.empty())
  80       ArchFS = ArchFS + "," + FS.str();
  81     else
  82       ArchFS = FS;
  83   }
  84   MCSubtargetInfo *X = new MCSubtargetInfo();
  85   InitMipsMCSubtargetInfo(X, TT, CPU, ArchFS);
  86   return X;
  87 }
  88
  89 static MCAsmInfo *createMipsMCAsmInfo(const MCRegisterInfo &MRI, StringRef TT) {
  90   MCAsmInfo *MAI = new MipsMCAsmInfo(TT);
  91
  92   unsigned SP = MRI.getDwarfRegNum(Mips::SP, true);
  93   MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(0, SP, 0);
  94   MAI->addInitialFrameState(Inst);
  95
  96   return MAI;
  97 }
  98
  99 static MCCodeGenInfo *createMipsMCCodeGenInfo(StringRef TT, Reloc::Model RM,
 100                                               CodeModel::Model CM,
 101                                               CodeGenOpt::Level OL) {
 102   MCCodeGenInfo *X = new MCCodeGenInfo();
 103   if (CM == CodeModel::JITDefault)
 104     RM = Reloc::Static;
 105   else if (RM == Reloc::Default)
 106     RM = Reloc::PIC_;
 107   X->InitMCCodeGenInfo(RM, CM, OL);
 108   return X;
 109 }
 110
 111 static MCInstPrinter *createMipsMCInstPrinter(const Target &T,
 112                                               unsigned SyntaxVariant,
 113                                               const MCAsmInfo &MAI,
 114                                               const MCInstrInfo &MII,
 115                                               const MCRegisterInfo &MRI,
 116                                               const MCSubtargetInfo &STI) {
 117   return new MipsInstPrinter(MAI, MII, MRI);
 118 }
 119
 120 static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
 121                                     MCContext &Context, MCAsmBackend &MAB,
 122                                     raw_ostream &OS, MCCodeEmitter *Emitter,
 123                                     const MCSubtargetInfo &STI,
 124                                     bool RelaxAll, bool NoExecStack) {
 125   MCStreamer *S =
 126       createELFStreamer(Context, MAB, OS, Emitter, RelaxAll, NoExecStack);
 127   new MipsTargetELFStreamer(*S, STI);
 128   return S;
 129 }
 130
 131 static MCStreamer *
 132 createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
 133                     bool isVerboseAsm, bool useCFI, bool useDwarfDirectory,
 134                     MCInstPrinter *InstPrint, MCCodeEmitter *CE,
 135                     MCAsmBackend *TAB, bool ShowInst) {
 136   MCStreamer *S =
 137       llvm::createAsmStreamer(Ctx, OS, isVerboseAsm, useCFI, useDwarfDirectory,
 138                               InstPrint, CE, TAB, ShowInst);
 139   new MipsTargetAsmStreamer(*S, OS);
 140   return S;
 141 }
 142
 143 extern "C" void LLVMInitializeMipsTargetMC() {
 144   // Register the MC asm info.
 145   RegisterMCAsmInfoFn X(TheMipsTarget, createMipsMCAsmInfo);
 146   RegisterMCAsmInfoFn Y(TheMipselTarget, createMipsMCAsmInfo);
 147   RegisterMCAsmInfoFn A(TheMips64Target, createMipsMCAsmInfo);
 148   RegisterMCAsmInfoFn B(TheMips64elTarget, createMipsMCAsmInfo);
 149
 150   // Register the MC codegen info.
 151   TargetRegistry::RegisterMCCodeGenInfo(TheMipsTarget,
 152                                         createMipsMCCodeGenInfo);
 153   TargetRegistry::RegisterMCCodeGenInfo(TheMipselTarget,
 154                                         createMipsMCCodeGenInfo);
 155   TargetRegistry::RegisterMCCodeGenInfo(TheMips64Target,
 156                                         createMipsMCCodeGenInfo);
 157   TargetRegistry::RegisterMCCodeGenInfo(TheMips64elTarget,
 158                                         createMipsMCCodeGenInfo);
 159
 160   // Register the MC instruction info.
 161   TargetRegistry::RegisterMCInstrInfo(TheMipsTarget, createMipsMCInstrInfo);
 162   TargetRegistry::RegisterMCInstrInfo(TheMipselTarget, createMipsMCInstrInfo);
 163   TargetRegistry::RegisterMCInstrInfo(TheMips64Target, createMipsMCInstrInfo);
 164   TargetRegistry::RegisterMCInstrInfo(TheMips64elTarget,
 165                                       createMipsMCInstrInfo);
 166
 167   // Register the MC register info.
 168   TargetRegistry::RegisterMCRegInfo(TheMipsTarget, createMipsMCRegisterInfo);
 169   TargetRegistry::RegisterMCRegInfo(TheMipselTarget, createMipsMCRegisterInfo);
 170   TargetRegistry::RegisterMCRegInfo(TheMips64Target, createMipsMCRegisterInfo);
 171   TargetRegistry::RegisterMCRegInfo(TheMips64elTarget,
 172                                     createMipsMCRegisterInfo);
 173
 174   // Register the MC Code Emitter
 175   TargetRegistry::RegisterMCCodeEmitter(TheMipsTarget,
 176                                         createMipsMCCodeEmitterEB);
 177   TargetRegistry::RegisterMCCodeEmitter(TheMipselTarget,
 178                                         createMipsMCCodeEmitterEL);
 179   TargetRegistry::RegisterMCCodeEmitter(TheMips64Target,
 180                                         createMipsMCCodeEmitterEB);
 181   TargetRegistry::RegisterMCCodeEmitter(TheMips64elTarget,
 182                                         createMipsMCCodeEmitterEL);
 183
 184   // Register the object streamer.
 185   TargetRegistry::RegisterMCObjectStreamer(TheMipsTarget, createMCStreamer);
 186   TargetRegistry::RegisterMCObjectStreamer(TheMipselTarget, createMCStreamer);
 187   TargetRegistry::RegisterMCObjectStreamer(TheMips64Target, createMCStreamer);
 188   TargetRegistry::RegisterMCObjectStreamer(TheMips64elTarget,
 189                                            createMCStreamer);
 190
 191   // Register the asm streamer.
 192   TargetRegistry::RegisterAsmStreamer(TheMipsTarget, createMCAsmStreamer);
 193   TargetRegistry::RegisterAsmStreamer(TheMipselTarget, createMCAsmStreamer);
 194   TargetRegistry::RegisterAsmStreamer(TheMips64Target, createMCAsmStreamer);
 195   TargetRegistry::RegisterAsmStreamer(TheMips64elTarget, createMCAsmStreamer);
 196
 197   // Register the asm backend.
 198   TargetRegistry::RegisterMCAsmBackend(TheMipsTarget,
 199                                        createMipsAsmBackendEB32);
 200   TargetRegistry::RegisterMCAsmBackend(TheMipselTarget,
 201                                        createMipsAsmBackendEL32);
 202   TargetRegistry::RegisterMCAsmBackend(TheMips64Target,
 203                                        createMipsAsmBackendEB64);
 204   TargetRegistry::RegisterMCAsmBackend(TheMips64elTarget,
 205                                        createMipsAsmBackendEL64);
 206
 207   // Register the MC subtarget info.
 208   TargetRegistry::RegisterMCSubtargetInfo(TheMipsTarget,
 209                                           createMipsMCSubtargetInfo);
 210   TargetRegistry::RegisterMCSubtargetInfo(TheMipselTarget,
 211                                           createMipsMCSubtargetInfo);
 212   TargetRegistry::RegisterMCSubtargetInfo(TheMips64Target,
 213                                           createMipsMCSubtargetInfo);
 214   TargetRegistry::RegisterMCSubtargetInfo(TheMips64elTarget,
 215                                           createMipsMCSubtargetInfo);
 216
 217   // Register the MCInstPrinter.
 218   TargetRegistry::RegisterMCInstPrinter(TheMipsTarget,
 219                                         createMipsMCInstPrinter);
 220   TargetRegistry::RegisterMCInstPrinter(TheMipselTarget,
 221                                         createMipsMCInstPrinter);
 222   TargetRegistry::RegisterMCInstPrinter(TheMips64Target,
 223                                         createMipsMCInstPrinter);
 224   TargetRegistry::RegisterMCInstPrinter(TheMips64elTarget,
 225                                         createMipsMCInstPrinter);
 226 }