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