1 //===-- MipsTargetStreamer.h - Mips Target Streamer ------------*- C++ -*--===// 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 #ifndef LLVM_LIB_TARGET_MIPS_MIPSTARGETSTREAMER_H 11 #define LLVM_LIB_TARGET_MIPS_MIPSTARGETSTREAMER_H 12 13 #include "MCTargetDesc/MipsABIFlagsSection.h" 14 #include "MCTargetDesc/MipsABIInfo.h" 15 #include "llvm/ADT/Optional.h" 16 #include "llvm/ADT/STLExtras.h" 17 #include "llvm/MC/MCELFStreamer.h" 18 #include "llvm/MC/MCRegisterInfo.h" 19 #include "llvm/MC/MCStreamer.h" 20 21 namespace llvm { 22 23 struct MipsABIFlagsSection; 24 25 class MipsTargetStreamer : public MCTargetStreamer { 26 public: 27 MipsTargetStreamer(MCStreamer &S); 28 29 virtual void setPic(bool Value) {} 30 31 virtual void emitDirectiveSetMicroMips(); 32 virtual void emitDirectiveSetNoMicroMips(); 33 virtual void setUsesMicroMips(); 34 virtual void emitDirectiveSetMips16(); 35 virtual void emitDirectiveSetNoMips16(); 36 37 virtual void emitDirectiveSetReorder(); 38 virtual void emitDirectiveSetNoReorder(); 39 virtual void emitDirectiveSetMacro(); 40 virtual void emitDirectiveSetNoMacro(); 41 virtual void emitDirectiveSetMsa(); 42 virtual void emitDirectiveSetNoMsa(); 43 virtual void emitDirectiveSetMt(); 44 virtual void emitDirectiveSetNoMt(); 45 virtual void emitDirectiveSetCRC(); 46 virtual void emitDirectiveSetNoCRC(); 47 virtual void emitDirectiveSetVirt(); 48 virtual void emitDirectiveSetNoVirt(); 49 virtual void emitDirectiveSetGINV(); 50 virtual void emitDirectiveSetNoGINV(); 51 virtual void emitDirectiveSetAt(); 52 virtual void emitDirectiveSetAtWithArg(unsigned RegNo); 53 virtual void emitDirectiveSetNoAt(); 54 virtual void emitDirectiveEnd(StringRef Name); 55 56 virtual void emitDirectiveEnt(const MCSymbol &Symbol); 57 virtual void emitDirectiveAbiCalls(); 58 virtual void emitDirectiveNaN2008(); 59 virtual void emitDirectiveNaNLegacy(); 60 virtual void emitDirectiveOptionPic0(); 61 virtual void emitDirectiveOptionPic2(); 62 virtual void emitDirectiveInsn(); 63 virtual void emitFrame(unsigned StackReg, unsigned StackSize, 64 unsigned ReturnReg); 65 virtual void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff); 66 virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff); 67 68 virtual void emitDirectiveSetArch(StringRef Arch); 69 virtual void emitDirectiveSetMips0(); 70 virtual void emitDirectiveSetMips1(); 71 virtual void emitDirectiveSetMips2(); 72 virtual void emitDirectiveSetMips3(); 73 virtual void emitDirectiveSetMips4(); 74 virtual void emitDirectiveSetMips5(); 75 virtual void emitDirectiveSetMips32(); 76 virtual void emitDirectiveSetMips32R2(); 77 virtual void emitDirectiveSetMips32R3(); 78 virtual void emitDirectiveSetMips32R5(); 79 virtual void emitDirectiveSetMips32R6(); 80 virtual void emitDirectiveSetMips64(); 81 virtual void emitDirectiveSetMips64R2(); 82 virtual void emitDirectiveSetMips64R3(); 83 virtual void emitDirectiveSetMips64R5(); 84 virtual void emitDirectiveSetMips64R6(); 85 virtual void emitDirectiveSetDsp(); 86 virtual void emitDirectiveSetDspr2(); 87 virtual void emitDirectiveSetNoDsp(); 88 virtual void emitDirectiveSetPop(); 89 virtual void emitDirectiveSetPush(); 90 virtual void emitDirectiveSetSoftFloat(); 91 virtual void emitDirectiveSetHardFloat(); 92 93 // PIC support 94 virtual void emitDirectiveCpLoad(unsigned RegNo); 95 virtual bool emitDirectiveCpRestore(int Offset, 96 function_ref<unsigned()> GetATReg, 97 SMLoc IDLoc, const MCSubtargetInfo *STI); 98 virtual void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset, 99 const MCSymbol &Sym, bool IsReg); 100 virtual void emitDirectiveCpreturn(unsigned SaveLocation, 101 bool SaveLocationIsRegister); 102 103 // FP abiflags directives 104 virtual void emitDirectiveModuleFP(); 105 virtual void emitDirectiveModuleOddSPReg(); 106 virtual void emitDirectiveModuleSoftFloat(); 107 virtual void emitDirectiveModuleHardFloat(); 108 virtual void emitDirectiveModuleMT(); 109 virtual void emitDirectiveSetFp(MipsABIFlagsSection::FpABIKind Value); 110 virtual void emitDirectiveSetOddSPReg(); 111 virtual void emitDirectiveSetNoOddSPReg(); 112 virtual void emitDirectiveModuleCRC(); 113 virtual void emitDirectiveModuleNoCRC(); 114 virtual void emitDirectiveModuleVirt(); 115 virtual void emitDirectiveModuleNoVirt(); 116 virtual void emitDirectiveModuleGINV(); 117 virtual void emitDirectiveModuleNoGINV(); 118 119 void emitR(unsigned Opcode, unsigned Reg0, SMLoc IDLoc, 120 const MCSubtargetInfo *STI); 121 void emitII(unsigned Opcode, int16_t Imm1, int16_t Imm2, SMLoc IDLoc, 122 const MCSubtargetInfo *STI); 123 void emitRX(unsigned Opcode, unsigned Reg0, MCOperand Op1, SMLoc IDLoc, 124 const MCSubtargetInfo *STI); 125 void emitRI(unsigned Opcode, unsigned Reg0, int32_t Imm, SMLoc IDLoc, 126 const MCSubtargetInfo *STI); 127 void emitRR(unsigned Opcode, unsigned Reg0, unsigned Reg1, SMLoc IDLoc, 128 const MCSubtargetInfo *STI); 129 void emitRRX(unsigned Opcode, unsigned Reg0, unsigned Reg1, MCOperand Op2, 130 SMLoc IDLoc, const MCSubtargetInfo *STI); 131 void emitRRR(unsigned Opcode, unsigned Reg0, unsigned Reg1, unsigned Reg2, 132 SMLoc IDLoc, const MCSubtargetInfo *STI); 133 void emitRRI(unsigned Opcode, unsigned Reg0, unsigned Reg1, int16_t Imm, 134 SMLoc IDLoc, const MCSubtargetInfo *STI); 135 void emitRRIII(unsigned Opcode, unsigned Reg0, unsigned Reg1, int16_t Imm0, 136 int16_t Imm1, int16_t Imm2, SMLoc IDLoc, 137 const MCSubtargetInfo *STI); 138 void emitAddu(unsigned DstReg, unsigned SrcReg, unsigned TrgReg, bool Is64Bit, 139 const MCSubtargetInfo *STI); 140 void emitDSLL(unsigned DstReg, unsigned SrcReg, int16_t ShiftAmount, 141 SMLoc IDLoc, const MCSubtargetInfo *STI); 142 void emitEmptyDelaySlot(bool hasShortDelaySlot, SMLoc IDLoc, 143 const MCSubtargetInfo *STI); 144 void emitNop(SMLoc IDLoc, const MCSubtargetInfo *STI); 145 146 /// Emit a store instruction with an offset. If the offset is out of range 147 /// then it will be synthesized using the assembler temporary. 148 /// 149 /// GetATReg() is a callback that can be used to obtain the current assembler 150 /// temporary and is only called when the assembler temporary is required. It 151 /// must handle the case where no assembler temporary is available (typically 152 /// by reporting an error). 153 void emitStoreWithImmOffset(unsigned Opcode, unsigned SrcReg, 154 unsigned BaseReg, int64_t Offset, 155 function_ref<unsigned()> GetATReg, SMLoc IDLoc, 156 const MCSubtargetInfo *STI); 157 void emitStoreWithSymOffset(unsigned Opcode, unsigned SrcReg, 158 unsigned BaseReg, MCOperand &HiOperand, 159 MCOperand &LoOperand, unsigned ATReg, SMLoc IDLoc, 160 const MCSubtargetInfo *STI); 161 void emitLoadWithImmOffset(unsigned Opcode, unsigned DstReg, unsigned BaseReg, 162 int64_t Offset, unsigned TmpReg, SMLoc IDLoc, 163 const MCSubtargetInfo *STI); 164 void emitLoadWithSymOffset(unsigned Opcode, unsigned DstReg, unsigned BaseReg, 165 MCOperand &HiOperand, MCOperand &LoOperand, 166 unsigned ATReg, SMLoc IDLoc, 167 const MCSubtargetInfo *STI); 168 void emitGPRestore(int Offset, SMLoc IDLoc, const MCSubtargetInfo *STI); 169 170 void forbidModuleDirective() { ModuleDirectiveAllowed = false; } 171 void reallowModuleDirective() { ModuleDirectiveAllowed = true; } 172 bool isModuleDirectiveAllowed() { return ModuleDirectiveAllowed; } 173 174 // This method enables template classes to set internal abi flags 175 // structure values. 176 template <class PredicateLibrary> 177 void updateABIInfo(const PredicateLibrary &P) { 178 ABI = P.getABI(); 179 ABIFlagsSection.setAllFromPredicates(P); 180 } 181 182 MipsABIFlagsSection &getABIFlagsSection() { return ABIFlagsSection; } 183 const MipsABIInfo &getABI() const { 184 assert(ABI.hasValue() && "ABI hasn't been set!"); 185 return *ABI; 186 } 187 188 protected: 189 llvm::Optional<MipsABIInfo> ABI; 190 MipsABIFlagsSection ABIFlagsSection; 191 192 bool GPRInfoSet; 193 unsigned GPRBitMask; 194 int GPROffset; 195 196 bool FPRInfoSet; 197 unsigned FPRBitMask; 198 int FPROffset; 199 200 bool FrameInfoSet; 201 int FrameOffset; 202 unsigned FrameReg; 203 unsigned ReturnReg; 204 205 private: 206 bool ModuleDirectiveAllowed; 207 }; 208 209 // This part is for ascii assembly output 210 class MipsTargetAsmStreamer : public MipsTargetStreamer { 211 formatted_raw_ostream &OS; 212 213 public: 214 MipsTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS); 215 void emitDirectiveSetMicroMips() override; 216 void emitDirectiveSetNoMicroMips() override; 217 void emitDirectiveSetMips16() override; 218 void emitDirectiveSetNoMips16() override; 219 220 void emitDirectiveSetReorder() override; 221 void emitDirectiveSetNoReorder() override; 222 void emitDirectiveSetMacro() override; 223 void emitDirectiveSetNoMacro() override; 224 void emitDirectiveSetMsa() override; 225 void emitDirectiveSetNoMsa() override; 226 void emitDirectiveSetMt() override; 227 void emitDirectiveSetNoMt() override; 228 void emitDirectiveSetCRC() override; 229 void emitDirectiveSetNoCRC() override; 230 void emitDirectiveSetVirt() override; 231 void emitDirectiveSetNoVirt() override; 232 void emitDirectiveSetGINV() override; 233 void emitDirectiveSetNoGINV() override; 234 void emitDirectiveSetAt() override; 235 void emitDirectiveSetAtWithArg(unsigned RegNo) override; 236 void emitDirectiveSetNoAt() override; 237 void emitDirectiveEnd(StringRef Name) override; 238 239 void emitDirectiveEnt(const MCSymbol &Symbol) override; 240 void emitDirectiveAbiCalls() override; 241 void emitDirectiveNaN2008() override; 242 void emitDirectiveNaNLegacy() override; 243 void emitDirectiveOptionPic0() override; 244 void emitDirectiveOptionPic2() override; 245 void emitDirectiveInsn() override; 246 void emitFrame(unsigned StackReg, unsigned StackSize, 247 unsigned ReturnReg) override; 248 void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff) override; 249 void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) override; 250 251 void emitDirectiveSetArch(StringRef Arch) override; 252 void emitDirectiveSetMips0() override; 253 void emitDirectiveSetMips1() override; 254 void emitDirectiveSetMips2() override; 255 void emitDirectiveSetMips3() override; 256 void emitDirectiveSetMips4() override; 257 void emitDirectiveSetMips5() override; 258 void emitDirectiveSetMips32() override; 259 void emitDirectiveSetMips32R2() override; 260 void emitDirectiveSetMips32R3() override; 261 void emitDirectiveSetMips32R5() override; 262 void emitDirectiveSetMips32R6() override; 263 void emitDirectiveSetMips64() override; 264 void emitDirectiveSetMips64R2() override; 265 void emitDirectiveSetMips64R3() override; 266 void emitDirectiveSetMips64R5() override; 267 void emitDirectiveSetMips64R6() override; 268 void emitDirectiveSetDsp() override; 269 void emitDirectiveSetDspr2() override; 270 void emitDirectiveSetNoDsp() override; 271 void emitDirectiveSetPop() override; 272 void emitDirectiveSetPush() override; 273 void emitDirectiveSetSoftFloat() override; 274 void emitDirectiveSetHardFloat() override; 275 276 // PIC support 277 void emitDirectiveCpLoad(unsigned RegNo) override; 278 279 /// Emit a .cprestore directive. If the offset is out of range then it will 280 /// be synthesized using the assembler temporary. 281 /// 282 /// GetATReg() is a callback that can be used to obtain the current assembler 283 /// temporary and is only called when the assembler temporary is required. It 284 /// must handle the case where no assembler temporary is available (typically 285 /// by reporting an error). 286 bool emitDirectiveCpRestore(int Offset, function_ref<unsigned()> GetATReg, 287 SMLoc IDLoc, const MCSubtargetInfo *STI) override; 288 void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset, 289 const MCSymbol &Sym, bool IsReg) override; 290 void emitDirectiveCpreturn(unsigned SaveLocation, 291 bool SaveLocationIsRegister) override; 292 293 // FP abiflags directives 294 void emitDirectiveModuleFP() override; 295 void emitDirectiveModuleOddSPReg() override; 296 void emitDirectiveModuleSoftFloat() override; 297 void emitDirectiveModuleHardFloat() override; 298 void emitDirectiveModuleMT() override; 299 void emitDirectiveModuleCRC() override; 300 void emitDirectiveModuleNoCRC() override; 301 void emitDirectiveModuleVirt() override; 302 void emitDirectiveModuleNoVirt() override; 303 void emitDirectiveModuleGINV() override; 304 void emitDirectiveModuleNoGINV() override; 305 void emitDirectiveSetFp(MipsABIFlagsSection::FpABIKind Value) override; 306 void emitDirectiveSetOddSPReg() override; 307 void emitDirectiveSetNoOddSPReg() override; 308 }; 309 310 // This part is for ELF object output 311 class MipsTargetELFStreamer : public MipsTargetStreamer { 312 bool MicroMipsEnabled; 313 const MCSubtargetInfo &STI; 314 bool Pic; 315 316 public: 317 bool isMicroMipsEnabled() const { return MicroMipsEnabled; } 318 MCELFStreamer &getStreamer(); 319 MipsTargetELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI); 320 321 void setPic(bool Value) override { Pic = Value; } 322 323 void emitLabel(MCSymbol *Symbol) override; 324 void emitAssignment(MCSymbol *Symbol, const MCExpr *Value) override; 325 void finish() override; 326 327 void emitDirectiveSetMicroMips() override; 328 void emitDirectiveSetNoMicroMips() override; 329 void setUsesMicroMips() override; 330 void emitDirectiveSetMips16() override; 331 332 void emitDirectiveSetNoReorder() override; 333 void emitDirectiveEnd(StringRef Name) override; 334 335 void emitDirectiveEnt(const MCSymbol &Symbol) override; 336 void emitDirectiveAbiCalls() override; 337 void emitDirectiveNaN2008() override; 338 void emitDirectiveNaNLegacy() override; 339 void emitDirectiveOptionPic0() override; 340 void emitDirectiveOptionPic2() override; 341 void emitDirectiveInsn() override; 342 void emitFrame(unsigned StackReg, unsigned StackSize, 343 unsigned ReturnReg) override; 344 void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff) override; 345 void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) override; 346 347 // PIC support 348 void emitDirectiveCpLoad(unsigned RegNo) override; 349 bool emitDirectiveCpRestore(int Offset, function_ref<unsigned()> GetATReg, 350 SMLoc IDLoc, const MCSubtargetInfo *STI) override; 351 void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset, 352 const MCSymbol &Sym, bool IsReg) override; 353 void emitDirectiveCpreturn(unsigned SaveLocation, 354 bool SaveLocationIsRegister) override; 355 356 void emitMipsAbiFlags(); 357 }; 358 } 359 #endif 360
