1 //===-- SparcMCTargetDesc.cpp - Sparc 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 Sparc specific target descriptions. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "SparcMCTargetDesc.h" 15 #include "InstPrinter/SparcInstPrinter.h" 16 #include "SparcMCAsmInfo.h" 17 #include "SparcTargetStreamer.h" 18 #include "llvm/MC/MCCodeGenInfo.h" 19 #include "llvm/MC/MCInstrInfo.h" 20 #include "llvm/MC/MCRegisterInfo.h" 21 #include "llvm/MC/MCSubtargetInfo.h" 22 #include "llvm/Support/ErrorHandling.h" 23 #include "llvm/Support/TargetRegistry.h" 24 25 using namespace llvm; 26 27 #define GET_INSTRINFO_MC_DESC 28 #include "SparcGenInstrInfo.inc" 29 30 #define GET_SUBTARGETINFO_MC_DESC 31 #include "SparcGenSubtargetInfo.inc" 32 33 #define GET_REGINFO_MC_DESC 34 #include "SparcGenRegisterInfo.inc" 35 36 static MCAsmInfo *createSparcMCAsmInfo(const MCRegisterInfo &MRI, 37 StringRef TT) { 38 MCAsmInfo *MAI = new SparcELFMCAsmInfo(TT); 39 unsigned Reg = MRI.getDwarfRegNum(SP::O6, true); 40 MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, Reg, 0); 41 MAI->addInitialFrameState(Inst); 42 return MAI; 43 } 44 45 static MCAsmInfo *createSparcV9MCAsmInfo(const MCRegisterInfo &MRI, 46 StringRef TT) { 47 MCAsmInfo *MAI = new SparcELFMCAsmInfo(TT); 48 unsigned Reg = MRI.getDwarfRegNum(SP::O6, true); 49 MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, Reg, 2047); 50 MAI->addInitialFrameState(Inst); 51 return MAI; 52 } 53 54 static MCInstrInfo *createSparcMCInstrInfo() { 55 MCInstrInfo *X = new MCInstrInfo(); 56 InitSparcMCInstrInfo(X); 57 return X; 58 } 59 60 static MCRegisterInfo *createSparcMCRegisterInfo(StringRef TT) { 61 MCRegisterInfo *X = new MCRegisterInfo(); 62 InitSparcMCRegisterInfo(X, SP::O7); 63 return X; 64 } 65 66 static MCSubtargetInfo *createSparcMCSubtargetInfo(StringRef TT, StringRef CPU, 67 StringRef FS) { 68 MCSubtargetInfo *X = new MCSubtargetInfo(); 69 Triple TheTriple(TT); 70 if (CPU.empty()) 71 CPU = (TheTriple.getArch() == Triple::sparcv9) ? "v9" : "v8"; 72 InitSparcMCSubtargetInfo(X, TT, CPU, FS); 73 return X; 74 } 75 76 // Code models. Some only make sense for 64-bit code. 77 // 78 // SunCC Reloc CodeModel Constraints 79 // abs32 Static Small text+data+bss linked below 2^32 bytes 80 // abs44 Static Medium text+data+bss linked below 2^44 bytes 81 // abs64 Static Large text smaller than 2^31 bytes 82 // pic13 PIC_ Small GOT < 2^13 bytes 83 // pic32 PIC_ Medium GOT < 2^32 bytes 84 // 85 // All code models require that the text segment is smaller than 2GB. 86 87 static MCCodeGenInfo *createSparcMCCodeGenInfo(StringRef TT, Reloc::Model RM, 88 CodeModel::Model CM, 89 CodeGenOpt::Level OL) { 90 MCCodeGenInfo *X = new MCCodeGenInfo(); 91 92 // The default 32-bit code model is abs32/pic32 and the default 32-bit 93 // code model for JIT is abs32. 94 switch (CM) { 95 default: break; 96 case CodeModel::Default: 97 case CodeModel::JITDefault: CM = CodeModel::Small; break; 98 } 99 100 X->InitMCCodeGenInfo(RM, CM, OL); 101 return X; 102 } 103 104 static MCCodeGenInfo *createSparcV9MCCodeGenInfo(StringRef TT, Reloc::Model RM, 105 CodeModel::Model CM, 106 CodeGenOpt::Level OL) { 107 MCCodeGenInfo *X = new MCCodeGenInfo(); 108 109 // The default 64-bit code model is abs44/pic32 and the default 64-bit 110 // code model for JIT is abs64. 111 switch (CM) { 112 default: break; 113 case CodeModel::Default: 114 CM = RM == Reloc::PIC_ ? CodeModel::Small : CodeModel::Medium; 115 break; 116 case CodeModel::JITDefault: 117 CM = CodeModel::Large; 118 break; 119 } 120 121 X->InitMCCodeGenInfo(RM, CM, OL); 122 return X; 123 } 124 125 static MCStreamer *createMCStreamer(const Target &T, StringRef TT, 126 MCContext &Context, MCAsmBackend &MAB, 127 raw_ostream &OS, MCCodeEmitter *Emitter, 128 const MCSubtargetInfo &STI, bool RelaxAll, 129 bool NoExecStack) { 130 MCStreamer *S = 131 createELFStreamer(Context, MAB, OS, Emitter, RelaxAll, NoExecStack); 132 new SparcTargetELFStreamer(*S); 133 return S; 134 } 135 136 static MCStreamer * 137 createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS, 138 bool isVerboseAsm, bool useDwarfDirectory, 139 MCInstPrinter *InstPrint, MCCodeEmitter *CE, 140 MCAsmBackend *TAB, bool ShowInst) { 141 142 MCStreamer *S = llvm::createAsmStreamer( 143 Ctx, OS, isVerboseAsm, useDwarfDirectory, InstPrint, CE, TAB, ShowInst); 144 new SparcTargetAsmStreamer(*S, OS); 145 return S; 146 } 147 148 static MCInstPrinter *createSparcMCInstPrinter(const Target &T, 149 unsigned SyntaxVariant, 150 const MCAsmInfo &MAI, 151 const MCInstrInfo &MII, 152 const MCRegisterInfo &MRI, 153 const MCSubtargetInfo &STI) { 154 return new SparcInstPrinter(MAI, MII, MRI, STI); 155 } 156 157 extern "C" void LLVMInitializeSparcTargetMC() { 158 // Register the MC asm info. 159 RegisterMCAsmInfoFn X(TheSparcTarget, createSparcMCAsmInfo); 160 RegisterMCAsmInfoFn Y(TheSparcV9Target, createSparcV9MCAsmInfo); 161 162 // Register the MC codegen info. 163 TargetRegistry::RegisterMCCodeGenInfo(TheSparcTarget, 164 createSparcMCCodeGenInfo); 165 TargetRegistry::RegisterMCCodeGenInfo(TheSparcV9Target, 166 createSparcV9MCCodeGenInfo); 167 168 // Register the MC instruction info. 169 TargetRegistry::RegisterMCInstrInfo(TheSparcTarget, createSparcMCInstrInfo); 170 TargetRegistry::RegisterMCInstrInfo(TheSparcV9Target, createSparcMCInstrInfo); 171 172 // Register the MC register info. 173 TargetRegistry::RegisterMCRegInfo(TheSparcTarget, createSparcMCRegisterInfo); 174 TargetRegistry::RegisterMCRegInfo(TheSparcV9Target, 175 createSparcMCRegisterInfo); 176 177 // Register the MC subtarget info. 178 TargetRegistry::RegisterMCSubtargetInfo(TheSparcTarget, 179 createSparcMCSubtargetInfo); 180 TargetRegistry::RegisterMCSubtargetInfo(TheSparcV9Target, 181 createSparcMCSubtargetInfo); 182 183 // Register the MC Code Emitter. 184 TargetRegistry::RegisterMCCodeEmitter(TheSparcTarget, 185 createSparcMCCodeEmitter); 186 TargetRegistry::RegisterMCCodeEmitter(TheSparcV9Target, 187 createSparcMCCodeEmitter); 188 189 //Register the asm backend. 190 TargetRegistry::RegisterMCAsmBackend(TheSparcTarget, 191 createSparcAsmBackend); 192 TargetRegistry::RegisterMCAsmBackend(TheSparcV9Target, 193 createSparcAsmBackend); 194 195 // Register the object streamer. 196 TargetRegistry::RegisterMCObjectStreamer(TheSparcTarget, 197 createMCStreamer); 198 TargetRegistry::RegisterMCObjectStreamer(TheSparcV9Target, 199 createMCStreamer); 200 201 // Register the asm streamer. 202 TargetRegistry::RegisterAsmStreamer(TheSparcTarget, 203 createMCAsmStreamer); 204 TargetRegistry::RegisterAsmStreamer(TheSparcV9Target, 205 createMCAsmStreamer); 206 207 // Register the MCInstPrinter 208 TargetRegistry::RegisterMCInstPrinter(TheSparcTarget, 209 createSparcMCInstPrinter); 210 TargetRegistry::RegisterMCInstPrinter(TheSparcV9Target, 211 createSparcMCInstPrinter); 212 } 213
