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1 //===-- MipsTargetStreamer.h - Mips Target Streamer ------------*- C++ -*--===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #ifndef LLVM_LIB_TARGET_MIPS_MIPSTARGETSTREAMER_H
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11 #define LLVM_LIB_TARGET_MIPS_MIPSTARGETSTREAMER_H
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12
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13 #include "MCTargetDesc/MipsABIFlagsSection.h"
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14 #include "MCTargetDesc/MipsABIInfo.h"
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15 #include "llvm/ADT/Optional.h"
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16 #include "llvm/MC/MCELFStreamer.h"
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17 #include "llvm/MC/MCRegisterInfo.h"
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18 #include "llvm/MC/MCStreamer.h"
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19
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20 namespace llvm {
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21
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22 struct MipsABIFlagsSection;
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23
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24 class MipsTargetStreamer : public MCTargetStreamer {
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25 public:
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26 MipsTargetStreamer(MCStreamer &S);
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27 virtual void emitDirectiveSetMicroMips();
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28 virtual void emitDirectiveSetNoMicroMips();
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29 virtual void emitDirectiveSetMips16();
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30 virtual void emitDirectiveSetNoMips16();
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31
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32 virtual void emitDirectiveSetReorder();
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33 virtual void emitDirectiveSetNoReorder();
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34 virtual void emitDirectiveSetMacro();
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35 virtual void emitDirectiveSetNoMacro();
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36 virtual void emitDirectiveSetMsa();
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37 virtual void emitDirectiveSetNoMsa();
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38 virtual void emitDirectiveSetAt();
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39 virtual void emitDirectiveSetAtWithArg(unsigned RegNo);
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40 virtual void emitDirectiveSetNoAt();
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41 virtual void emitDirectiveEnd(StringRef Name);
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42
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43 virtual void emitDirectiveEnt(const MCSymbol &Symbol);
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44 virtual void emitDirectiveAbiCalls();
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45 virtual void emitDirectiveNaN2008();
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46 virtual void emitDirectiveNaNLegacy();
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47 virtual void emitDirectiveOptionPic0();
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48 virtual void emitDirectiveOptionPic2();
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49 virtual void emitDirectiveInsn();
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50 virtual void emitFrame(unsigned StackReg, unsigned StackSize,
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51 unsigned ReturnReg);
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52 virtual void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff);
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53 virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff);
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54
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55 virtual void emitDirectiveSetArch(StringRef Arch);
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56 virtual void emitDirectiveSetMips0();
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57 virtual void emitDirectiveSetMips1();
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58 virtual void emitDirectiveSetMips2();
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59 virtual void emitDirectiveSetMips3();
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60 virtual void emitDirectiveSetMips4();
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61 virtual void emitDirectiveSetMips5();
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62 virtual void emitDirectiveSetMips32();
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63 virtual void emitDirectiveSetMips32R2();
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64 virtual void emitDirectiveSetMips32R3();
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65 virtual void emitDirectiveSetMips32R5();
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66 virtual void emitDirectiveSetMips32R6();
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67 virtual void emitDirectiveSetMips64();
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68 virtual void emitDirectiveSetMips64R2();
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69 virtual void emitDirectiveSetMips64R3();
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70 virtual void emitDirectiveSetMips64R5();
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71 virtual void emitDirectiveSetMips64R6();
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72 virtual void emitDirectiveSetDsp();
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73 virtual void emitDirectiveSetNoDsp();
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74 virtual void emitDirectiveSetPop();
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75 virtual void emitDirectiveSetPush();
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76 virtual void emitDirectiveSetSoftFloat();
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77 virtual void emitDirectiveSetHardFloat();
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78
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79 // PIC support
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83
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80 virtual void emitDirectiveCpLoad(unsigned RegNo);
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81 virtual void emitDirectiveCpRestore(SmallVector<MCInst, 3> &StoreInsts,
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82 int Offset);
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83 virtual void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset,
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84 const MCSymbol &Sym, bool IsReg);
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85 virtual void emitDirectiveCpreturn(unsigned SaveLocation,
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86 bool SaveLocationIsRegister);
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87
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88 // FP abiflags directives
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89 virtual void emitDirectiveModuleFP();
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90 virtual void emitDirectiveModuleOddSPReg();
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91 virtual void emitDirectiveModuleSoftFloat();
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92 virtual void emitDirectiveModuleHardFloat();
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93 virtual void emitDirectiveSetFp(MipsABIFlagsSection::FpABIKind Value);
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94 virtual void emitDirectiveSetOddSPReg();
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95 virtual void emitDirectiveSetNoOddSPReg();
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96
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97 void forbidModuleDirective() { ModuleDirectiveAllowed = false; }
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98 void reallowModuleDirective() { ModuleDirectiveAllowed = true; }
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99 bool isModuleDirectiveAllowed() { return ModuleDirectiveAllowed; }
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100
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101 // This method enables template classes to set internal abi flags
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102 // structure values.
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103 template <class PredicateLibrary>
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104 void updateABIInfo(const PredicateLibrary &P) {
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105 ABI = P.getABI();
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106 ABIFlagsSection.setAllFromPredicates(P);
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107 }
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108
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109 MipsABIFlagsSection &getABIFlagsSection() { return ABIFlagsSection; }
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110 const MipsABIInfo &getABI() const {
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111 assert(ABI.hasValue() && "ABI hasn't been set!");
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112 return *ABI;
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113 }
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114
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115 protected:
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116 llvm::Optional<MipsABIInfo> ABI;
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117 MipsABIFlagsSection ABIFlagsSection;
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118
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119 bool GPRInfoSet;
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120 unsigned GPRBitMask;
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121 int GPROffset;
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122
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123 bool FPRInfoSet;
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124 unsigned FPRBitMask;
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125 int FPROffset;
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126
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127 bool FrameInfoSet;
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128 int FrameOffset;
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129 unsigned FrameReg;
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130 unsigned ReturnReg;
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131
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132 private:
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133 bool ModuleDirectiveAllowed;
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134 };
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135
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136 // This part is for ascii assembly output
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137 class MipsTargetAsmStreamer : public MipsTargetStreamer {
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138 formatted_raw_ostream &OS;
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139
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140 public:
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141 MipsTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
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142 void emitDirectiveSetMicroMips() override;
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143 void emitDirectiveSetNoMicroMips() override;
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144 void emitDirectiveSetMips16() override;
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145 void emitDirectiveSetNoMips16() override;
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146
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147 void emitDirectiveSetReorder() override;
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148 void emitDirectiveSetNoReorder() override;
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149 void emitDirectiveSetMacro() override;
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150 void emitDirectiveSetNoMacro() override;
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151 void emitDirectiveSetMsa() override;
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152 void emitDirectiveSetNoMsa() override;
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153 void emitDirectiveSetAt() override;
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154 void emitDirectiveSetAtWithArg(unsigned RegNo) override;
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155 void emitDirectiveSetNoAt() override;
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156 void emitDirectiveEnd(StringRef Name) override;
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157
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158 void emitDirectiveEnt(const MCSymbol &Symbol) override;
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159 void emitDirectiveAbiCalls() override;
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160 void emitDirectiveNaN2008() override;
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161 void emitDirectiveNaNLegacy() override;
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162 void emitDirectiveOptionPic0() override;
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163 void emitDirectiveOptionPic2() override;
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164 void emitDirectiveInsn() override;
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165 void emitFrame(unsigned StackReg, unsigned StackSize,
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166 unsigned ReturnReg) override;
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167 void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff) override;
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168 void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) override;
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169
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170 void emitDirectiveSetArch(StringRef Arch) override;
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171 void emitDirectiveSetMips0() override;
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172 void emitDirectiveSetMips1() override;
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173 void emitDirectiveSetMips2() override;
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174 void emitDirectiveSetMips3() override;
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175 void emitDirectiveSetMips4() override;
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176 void emitDirectiveSetMips5() override;
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177 void emitDirectiveSetMips32() override;
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178 void emitDirectiveSetMips32R2() override;
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179 void emitDirectiveSetMips32R3() override;
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180 void emitDirectiveSetMips32R5() override;
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181 void emitDirectiveSetMips32R6() override;
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182 void emitDirectiveSetMips64() override;
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183 void emitDirectiveSetMips64R2() override;
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184 void emitDirectiveSetMips64R3() override;
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185 void emitDirectiveSetMips64R5() override;
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186 void emitDirectiveSetMips64R6() override;
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187 void emitDirectiveSetDsp() override;
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188 void emitDirectiveSetNoDsp() override;
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189 void emitDirectiveSetPop() override;
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190 void emitDirectiveSetPush() override;
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191 void emitDirectiveSetSoftFloat() override;
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192 void emitDirectiveSetHardFloat() override;
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193
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194 // PIC support
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195 void emitDirectiveCpLoad(unsigned RegNo) override;
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196 void emitDirectiveCpRestore(SmallVector<MCInst, 3> &StoreInsts,
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197 int Offset) override;
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198 void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset,
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199 const MCSymbol &Sym, bool IsReg) override;
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200 void emitDirectiveCpreturn(unsigned SaveLocation,
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201 bool SaveLocationIsRegister) override;
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202
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203 // FP abiflags directives
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204 void emitDirectiveModuleFP() override;
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205 void emitDirectiveModuleOddSPReg() override;
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206 void emitDirectiveModuleSoftFloat() override;
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207 void emitDirectiveModuleHardFloat() override;
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208 void emitDirectiveSetFp(MipsABIFlagsSection::FpABIKind Value) override;
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209 void emitDirectiveSetOddSPReg() override;
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210 void emitDirectiveSetNoOddSPReg() override;
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211 };
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212
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213 // This part is for ELF object output
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214 class MipsTargetELFStreamer : public MipsTargetStreamer {
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215 bool MicroMipsEnabled;
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216 const MCSubtargetInfo &STI;
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217 bool Pic;
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218
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219 public:
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220 bool isMicroMipsEnabled() const { return MicroMipsEnabled; }
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221 MCELFStreamer &getStreamer();
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222 MipsTargetELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI);
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223
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224 void emitLabel(MCSymbol *Symbol) override;
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225 void emitAssignment(MCSymbol *Symbol, const MCExpr *Value) override;
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226 void finish() override;
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227
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228 void emitDirectiveSetMicroMips() override;
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229 void emitDirectiveSetNoMicroMips() override;
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230 void emitDirectiveSetMips16() override;
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231
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232 void emitDirectiveSetNoReorder() override;
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233 void emitDirectiveEnd(StringRef Name) override;
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234
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235 void emitDirectiveEnt(const MCSymbol &Symbol) override;
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236 void emitDirectiveAbiCalls() override;
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237 void emitDirectiveNaN2008() override;
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238 void emitDirectiveNaNLegacy() override;
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239 void emitDirectiveOptionPic0() override;
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240 void emitDirectiveOptionPic2() override;
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241 void emitDirectiveInsn() override;
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242 void emitFrame(unsigned StackReg, unsigned StackSize,
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243 unsigned ReturnReg) override;
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244 void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff) override;
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245 void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) override;
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246
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247 // PIC support
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248 void emitDirectiveCpLoad(unsigned RegNo) override;
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249 void emitDirectiveCpRestore(SmallVector<MCInst, 3> &StoreInsts,
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250 int Offset) override;
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251 void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset,
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252 const MCSymbol &Sym, bool IsReg) override;
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253 void emitDirectiveCpreturn(unsigned SaveLocation,
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254 bool SaveLocationIsRegister) override;
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255
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256 void emitMipsAbiFlags();
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257 };
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258 }
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259 #endif
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