Optional<MCOperand>
X86MCInstLower::LowerMachineOperand(const MachineInstr *MI,
                                    const MachineOperand &MO) const {
  switch (MO.getType()) {
  default:
    MI->dump();
    llvm_unreachable("unknown operand type");
  case MachineOperand::MO_Register:
    // Ignore all implicit register operands.
    if (MO.isImplicit())
      return None;
    return MCOperand::createReg(MO.getReg());
  case MachineOperand::MO_Immediate:
    return MCOperand::createImm(MO.getImm());
  case MachineOperand::MO_MachineBasicBlock:
  case MachineOperand::MO_GlobalAddress:
  case MachineOperand::MO_ExternalSymbol:
    return LowerSymbolOperand(MO, GetSymbolFromOperand(MO));
  case MachineOperand::MO_MCSymbol:
    return LowerSymbolOperand(MO, MO.getMCSymbol());
  case MachineOperand::MO_JumpTableIndex:
    return LowerSymbolOperand(MO, AsmPrinter.GetJTISymbol(MO.getIndex()));
  case MachineOperand::MO_ConstantPoolIndex:
    return LowerSymbolOperand(MO, AsmPrinter.GetCPISymbol(MO.getIndex()));
  case MachineOperand::MO_BlockAddress:
    return LowerSymbolOperand(
        MO, AsmPrinter.GetBlockAddressSymbol(MO.getBlockAddress()));
  case MachineOperand::MO_RegisterMask:
    // Ignore call clobbers.
    return None;
  }
}
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/// isIdenticalTo - Return true if this operand is identical to the specified
/// operand.
bool MachineOperand::isIdenticalTo(const MachineOperand &Other) const {
    if (getType() != Other.getType() ||
            getTargetFlags() != Other.getTargetFlags())
        return false;

    switch (getType()) {
    default:
        llvm_unreachable("Unrecognized operand type");
    case MachineOperand::MO_Register:
        return getReg() == Other.getReg() && isDef() == Other.isDef() &&
               getSubReg() == Other.getSubReg();
    case MachineOperand::MO_Immediate:
        return getImm() == Other.getImm();
    case MachineOperand::MO_FPImmediate:
        return getFPImm() == Other.getFPImm();
    case MachineOperand::MO_MachineBasicBlock:
        return getMBB() == Other.getMBB();
    case MachineOperand::MO_FrameIndex:
        return getIndex() == Other.getIndex();
    case MachineOperand::MO_ConstantPoolIndex:
        return getIndex() == Other.getIndex() && getOffset() == Other.getOffset();
    case MachineOperand::MO_JumpTableIndex:
        return getIndex() == Other.getIndex();
    case MachineOperand::MO_GlobalAddress:
        return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset();
    case MachineOperand::MO_ExternalSymbol:
        return !strcmp(getSymbolName(), Other.getSymbolName()) &&
               getOffset() == Other.getOffset();
    case MachineOperand::MO_BlockAddress:
        return getBlockAddress() == Other.getBlockAddress();
    }
}
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MCOperand Cpu0MCInstLower::LowerSymbolOperand(const MachineOperand &MO,
                                              MachineOperandType MOTy,
                                              unsigned Offset) const {
  MCSymbolRefExpr::VariantKind Kind;
  const MCSymbol *Symbol;

  switch(MO.getTargetFlags()) {
  default:                   llvm_unreachable("Invalid target flag!");
  case Cpu0II::MO_NO_FLAG:   Kind = MCSymbolRefExpr::VK_None; break;

// Cpu0_GPREL is for llc -march=cpu0 -relocation-model=static -cpu0-islinux-
//  format=false (global var in .sdata).
  case Cpu0II::MO_GPREL:     Kind = MCSymbolRefExpr::VK_Cpu0_GPREL; break;

  case Cpu0II::MO_GOT_CALL:  Kind = MCSymbolRefExpr::VK_Cpu0_GOT_CALL; break;
  case Cpu0II::MO_GOT16:     Kind = MCSymbolRefExpr::VK_Cpu0_GOT16; break;
  case Cpu0II::MO_GOT:       Kind = MCSymbolRefExpr::VK_Cpu0_GOT; break;
// ABS_HI and ABS_LO is for llc -march=cpu0 -relocation-model=static (global 
//  var in .data).
  case Cpu0II::MO_ABS_HI:    Kind = MCSymbolRefExpr::VK_Cpu0_ABS_HI; break;
  case Cpu0II::MO_ABS_LO:    Kind = MCSymbolRefExpr::VK_Cpu0_ABS_LO; break;
  case Cpu0II::MO_GOT_HI16:  Kind = MCSymbolRefExpr::VK_Cpu0_GOT_HI16; break;
  case Cpu0II::MO_GOT_LO16:  Kind = MCSymbolRefExpr::VK_Cpu0_GOT_LO16; break;
  }

  switch (MOTy) {
  case MachineOperand::MO_MachineBasicBlock:
    Symbol = MO.getMBB()->getSymbol();
    break;

  case MachineOperand::MO_GlobalAddress:
    Symbol = Mang->getSymbol(MO.getGlobal());
    break;

  case MachineOperand::MO_BlockAddress:
    Symbol = AsmPrinter.GetBlockAddressSymbol(MO.getBlockAddress());
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_ExternalSymbol:
    Symbol = AsmPrinter.GetExternalSymbolSymbol(MO.getSymbolName());
    Offset += MO.getOffset();
    break;

  default:
    llvm_unreachable("<unknown operand type>");
  }

  const MCSymbolRefExpr *MCSym = MCSymbolRefExpr::Create(Symbol, Kind, *Ctx);

  if (!Offset)
    return MCOperand::CreateExpr(MCSym);

  // Assume offset is never negative.
  assert(Offset > 0);

  const MCConstantExpr *OffsetExpr =  MCConstantExpr::Create(Offset, *Ctx);
  const MCBinaryExpr *AddExpr = MCBinaryExpr::CreateAdd(MCSym, OffsetExpr, *Ctx);
  return MCOperand::CreateExpr(AddExpr);
}
MCOperand MipsMCInstLower::LowerSymbolOperand(const MachineOperand &MO,
                                              MachineOperandType MOTy,
                                              unsigned Offset) const {
  MipsMCSymbolRefExpr::VariantKind Kind;
  const MCSymbol *Symbol;

  switch(MO.getTargetFlags()) {
  default:                  assert(0 && "Invalid target flag!");
  case MipsII::MO_NO_FLAG:  Kind = MipsMCSymbolRefExpr::VK_Mips_None; break;
  case MipsII::MO_GPREL:    Kind = MipsMCSymbolRefExpr::VK_Mips_GPREL; break;
  case MipsII::MO_GOT_CALL: Kind = MipsMCSymbolRefExpr::VK_Mips_GOT_CALL; break;
  case MipsII::MO_GOT:      Kind = MipsMCSymbolRefExpr::VK_Mips_GOT; break;
  case MipsII::MO_ABS_HI:   Kind = MipsMCSymbolRefExpr::VK_Mips_ABS_HI; break;
  case MipsII::MO_ABS_LO:   Kind = MipsMCSymbolRefExpr::VK_Mips_ABS_LO; break;
  case MipsII::MO_TLSGD:    Kind = MipsMCSymbolRefExpr::VK_Mips_TLSGD; break;
  case MipsII::MO_GOTTPREL: Kind = MipsMCSymbolRefExpr::VK_Mips_GOTTPREL; break;
  case MipsII::MO_TPREL_HI: Kind = MipsMCSymbolRefExpr::VK_Mips_TPREL_HI; break;
  case MipsII::MO_TPREL_LO: Kind = MipsMCSymbolRefExpr::VK_Mips_TPREL_LO; break;
  case MipsII::MO_GPOFF_HI: Kind = MipsMCSymbolRefExpr::VK_Mips_GPOFF_HI; break;
  case MipsII::MO_GPOFF_LO: Kind = MipsMCSymbolRefExpr::VK_Mips_GPOFF_LO; break;
  case MipsII::MO_GOT_DISP: Kind = MipsMCSymbolRefExpr::VK_Mips_GOT_DISP; break;
  case MipsII::MO_GOT_PAGE: Kind = MipsMCSymbolRefExpr::VK_Mips_GOT_PAGE; break;
  case MipsII::MO_GOT_OFST: Kind = MipsMCSymbolRefExpr::VK_Mips_GOT_OFST; break;
  }

  switch (MOTy) {
    case MachineOperand::MO_MachineBasicBlock:
      Symbol = MO.getMBB()->getSymbol();
      break;

    case MachineOperand::MO_GlobalAddress:
      Symbol = Mang->getSymbol(MO.getGlobal());
      break;

    case MachineOperand::MO_BlockAddress:
      Symbol = AsmPrinter.GetBlockAddressSymbol(MO.getBlockAddress());
      break;

    case MachineOperand::MO_ExternalSymbol:
      Symbol = AsmPrinter.GetExternalSymbolSymbol(MO.getSymbolName());
      break;

    case MachineOperand::MO_JumpTableIndex:
      Symbol = AsmPrinter.GetJTISymbol(MO.getIndex());
      break;

    case MachineOperand::MO_ConstantPoolIndex:
      Symbol = AsmPrinter.GetCPISymbol(MO.getIndex());
      if (MO.getOffset())
        Offset += MO.getOffset();  
      break;

    default:
      llvm_unreachable("<unknown operand type>");
  }
  
  return MCOperand::CreateExpr(MipsMCSymbolRefExpr::Create(Kind, Symbol, Offset,
                                                           Ctx));
}
static bool isSimilarDispOp(const MachineOperand &MO1,
                            const MachineOperand &MO2) {
  assert(isValidDispOp(MO1) && isValidDispOp(MO2) &&
         "Address displacement operand is not valid");
  return (MO1.isImm() && MO2.isImm()) ||
         (MO1.isCPI() && MO2.isCPI() && MO1.getIndex() == MO2.getIndex()) ||
         (MO1.isJTI() && MO2.isJTI() && MO1.getIndex() == MO2.getIndex()) ||
         (MO1.isSymbol() && MO2.isSymbol() &&
          MO1.getSymbolName() == MO2.getSymbolName()) ||
         (MO1.isGlobal() && MO2.isGlobal() &&
          MO1.getGlobal() == MO2.getGlobal()) ||
         (MO1.isBlockAddress() && MO2.isBlockAddress() &&
          MO1.getBlockAddress() == MO2.getBlockAddress()) ||
         (MO1.isMCSymbol() && MO2.isMCSymbol() &&
          MO1.getMCSymbol() == MO2.getMCSymbol()) ||
         (MO1.isMBB() && MO2.isMBB() && MO1.getMBB() == MO2.getMBB());
}
bool EpiphanyAsmPrinter::printSymbolicAddress(const MachineOperand &MO,
                                             bool PrintImmediatePrefix,
                                             StringRef Suffix, raw_ostream &O) {
  StringRef Name;
  StringRef Modifier;
  switch (MO.getType()) {
  default:
    llvm_unreachable("Unexpected operand for symbolic address constraint");
  case MachineOperand::MO_GlobalAddress:
    Name = Mang->getSymbol(MO.getGlobal())->getName();

    // Global variables may be accessed either via a GOT or in various fun and
    // interesting TLS-model specific ways. Set the prefix modifier as
    // appropriate here.
    if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(MO.getGlobal())) {
      Reloc::Model RelocM = TM.getRelocationModel();
		if (Subtarget->GVIsIndirectSymbol(GV, RelocM)) {
        Modifier = "got";
      }
    }
    break;
  case MachineOperand::MO_BlockAddress:
    Name = GetBlockAddressSymbol(MO.getBlockAddress())->getName();
    break;
  case MachineOperand::MO_ExternalSymbol:
    Name = MO.getSymbolName();
    break;
  case MachineOperand::MO_ConstantPoolIndex:
    Name = GetCPISymbol(MO.getIndex())->getName();
    break;
  }

  // Some instructions (notably ADRP) don't take the # prefix for
  // immediates. Only print it if asked to.
  if (PrintImmediatePrefix)
    O << '#';

  // Only need the joining "_" if both the prefix and the suffix are
  // non-null. This little block simply takes care of the four possibly
  // combinations involved there.
  if (Modifier == "" && Suffix == "")
    O << Name;
  else if (Modifier == "" && Suffix != "")
    O << ":" << Suffix << ':' << Name;
  else if (Modifier != "" && Suffix == "")
    O << ":" << Modifier << ':' << Name;
  else
    O << ":" << Modifier << '_' << Suffix << ':' << Name;

  return false;
}
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bool ARMAsmPrinter::lowerOperand(const MachineOperand &MO,
                                 MCOperand &MCOp) {
  switch (MO.getType()) {
  default: llvm_unreachable("unknown operand type");
  case MachineOperand::MO_Register:
    // Ignore all non-CPSR implicit register operands.
    if (MO.isImplicit() && MO.getReg() != ARM::CPSR)
      return false;
    assert(!MO.getSubReg() && "Subregs should be eliminated!");
    MCOp = MCOperand::createReg(MO.getReg());
    break;
  case MachineOperand::MO_Immediate:
    MCOp = MCOperand::createImm(MO.getImm());
    break;
  case MachineOperand::MO_MachineBasicBlock:
    MCOp = MCOperand::createExpr(MCSymbolRefExpr::create(
        MO.getMBB()->getSymbol(), OutContext));
    break;
  case MachineOperand::MO_GlobalAddress:
    MCOp = GetSymbolRef(MO,
                        GetARMGVSymbol(MO.getGlobal(), MO.getTargetFlags()));
    break;
  case MachineOperand::MO_ExternalSymbol:
    MCOp = GetSymbolRef(MO,
                        GetExternalSymbolSymbol(MO.getSymbolName()));
    break;
  case MachineOperand::MO_JumpTableIndex:
    MCOp = GetSymbolRef(MO, GetJTISymbol(MO.getIndex()));
    break;
  case MachineOperand::MO_ConstantPoolIndex:
    if (Subtarget->genExecuteOnly())
      llvm_unreachable("execute-only should not generate constant pools");
    MCOp = GetSymbolRef(MO, GetCPISymbol(MO.getIndex()));
    break;
  case MachineOperand::MO_BlockAddress:
    MCOp = GetSymbolRef(MO, GetBlockAddressSymbol(MO.getBlockAddress()));
    break;
  case MachineOperand::MO_FPImmediate: {
    APFloat Val = MO.getFPImm()->getValueAPF();
    bool ignored;
    Val.convert(APFloat::IEEEdouble(), APFloat::rmTowardZero, &ignored);
    MCOp = MCOperand::createFPImm(Val.convertToDouble());
    break;
  }
  case MachineOperand::MO_RegisterMask:
    // Ignore call clobbers.
    return false;
  }
  return true;
}
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MCOperand NyuziMCInstLower::LowerSymbolOperand(const MachineOperand &MO,
                                               MachineOperandType MOTy,
                                               unsigned Offset) const {
  MCSymbolRefExpr::VariantKind Kind = MCSymbolRefExpr::VK_None;
  const MCSymbol *Symbol;

  switch (MOTy) {
  case MachineOperand::MO_MachineBasicBlock:
    Symbol = MO.getMBB()->getSymbol();
    break;

  case MachineOperand::MO_GlobalAddress:
    Symbol = AsmPrinter.getSymbol(MO.getGlobal());
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_BlockAddress:
    Symbol = AsmPrinter.GetBlockAddressSymbol(MO.getBlockAddress());
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_ExternalSymbol:
    Symbol = AsmPrinter.GetExternalSymbolSymbol(MO.getSymbolName());
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_JumpTableIndex:
    Symbol = AsmPrinter.GetJTISymbol(MO.getIndex());
    break;

  case MachineOperand::MO_ConstantPoolIndex:
    Symbol = AsmPrinter.GetCPISymbol(MO.getIndex());
    Offset += MO.getOffset();
    break;

  default:
    llvm_unreachable("<unknown operand type>");
  }

  const MCSymbolRefExpr *MCSym = MCSymbolRefExpr::create(Symbol, Kind, *Ctx);
  if (!Offset)
    return MCOperand::createExpr(MCSym);

  // Assume offset is never negative.
  assert(Offset > 0);

  const MCConstantExpr *OffsetExpr = MCConstantExpr::create(Offset, *Ctx);
  const MCBinaryExpr *Add = MCBinaryExpr::createAdd(MCSym, OffsetExpr, *Ctx);
  return MCOperand::createExpr(Add);
}
bool EpiphanyAsmPrinter::lowerOperand(const MachineOperand &MO,
                                      MCOperand &MCOp) const {
    switch (MO.getType()) {
    default:
        llvm_unreachable("unknown operand type");
    case MachineOperand::MO_Register:
        if (MO.isImplicit())
            return false;
        assert(!MO.getSubReg() && "Subregs should be eliminated!");
        MCOp = MCOperand::CreateReg(MO.getReg());
        break;
    case MachineOperand::MO_Immediate:
        MCOp = MCOperand::CreateImm(MO.getImm());
        break;
    case MachineOperand::MO_FPImmediate: {// a bit hacky, see arm
        APFloat Val = MO.getFPImm()->getValueAPF();
        bool ignored;
        Val.convert(APFloat::IEEEdouble, APFloat::rmTowardZero, &ignored);
        MCOp = MCOperand::CreateFPImm(Val.convertToDouble());
        break;
    }
    case MachineOperand::MO_BlockAddress:
        MCOp = lowerSymbolOperand(MO, GetBlockAddressSymbol(MO.getBlockAddress()));
        break;
    case MachineOperand::MO_ExternalSymbol:
        MCOp = lowerSymbolOperand(MO, GetExternalSymbolSymbol(MO.getSymbolName()));
        break;
    case MachineOperand::MO_GlobalAddress:
        MCOp = lowerSymbolOperand(MO, Mang->getSymbol(MO.getGlobal()));
        break;
    case MachineOperand::MO_MachineBasicBlock:
        MCOp = MCOperand::CreateExpr(MCSymbolRefExpr::Create(
                                         MO.getMBB()->getSymbol(), OutContext));
        break;
    case MachineOperand::MO_JumpTableIndex:
        MCOp = lowerSymbolOperand(MO, GetJTISymbol(MO.getIndex()));
        break;
    case MachineOperand::MO_ConstantPoolIndex:
        MCOp = lowerSymbolOperand(MO, GetCPISymbol(MO.getIndex()));
        break;
    case MachineOperand::MO_RegisterMask:
        // Ignore call clobbers
        return false;

    }

    return true;
}
void HexagonCopyToCombine::emitCombineRI(MachineBasicBlock::iterator &InsertPt,
                                         unsigned DoubleDestReg,
                                         MachineOperand &HiOperand,
                                         MachineOperand &LoOperand) {
  unsigned HiRegKillFlag = getKillRegState(HiOperand.isKill());
  unsigned HiReg = HiOperand.getReg();

  DebugLoc DL = InsertPt->getDebugLoc();
  MachineBasicBlock *BB = InsertPt->getParent();

  // Handle global.
  if (LoOperand.isGlobal()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
      .addReg(HiReg, HiRegKillFlag)
      .addGlobalAddress(LoOperand.getGlobal(), LoOperand.getOffset(),
                        LoOperand.getTargetFlags());
    return;
  }
  // Handle block addresses.
  if (LoOperand.isBlockAddress()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
      .addReg(HiReg, HiRegKillFlag)
      .addBlockAddress(LoOperand.getBlockAddress(), LoOperand.getOffset(),
                       LoOperand.getTargetFlags());
    return;
  }
  // Handle jump tables.
  if (LoOperand.isJTI()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
      .addReg(HiOperand.getReg(), HiRegKillFlag)
      .addJumpTableIndex(LoOperand.getIndex(), LoOperand.getTargetFlags());
    return;
  }
  // Handle constant pools.
  if (LoOperand.isCPI()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
      .addReg(HiOperand.getReg(), HiRegKillFlag)
      .addConstantPoolIndex(LoOperand.getIndex(), LoOperand.getOffset(),
                            LoOperand.getTargetFlags());
    return;
  }

  // Insert new combine instruction.
  //  DoubleRegDest = combine HiReg, #LoImm
  BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
    .addReg(HiReg, HiRegKillFlag)
    .addImm(LoOperand.getImm());
}
Exemple #11
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// Note: this must stay exactly in sync with isIdenticalTo above.
hash_code llvm::hash_value(const MachineOperand &MO) {
  switch (MO.getType()) {
  case MachineOperand::MO_Register:
    // Register operands don't have target flags.
    return hash_combine(MO.getType(), MO.getReg(), MO.getSubReg(), MO.isDef());
  case MachineOperand::MO_Immediate:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getImm());
  case MachineOperand::MO_CImmediate:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getCImm());
  case MachineOperand::MO_FPImmediate:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getFPImm());
  case MachineOperand::MO_MachineBasicBlock:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMBB());
  case MachineOperand::MO_FrameIndex:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex());
  case MachineOperand::MO_ConstantPoolIndex:
  case MachineOperand::MO_TargetIndex:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex(),
                        MO.getOffset());
  case MachineOperand::MO_JumpTableIndex:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIndex());
  case MachineOperand::MO_ExternalSymbol:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getOffset(),
                        MO.getSymbolName());
  case MachineOperand::MO_GlobalAddress:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getGlobal(),
                        MO.getOffset());
  case MachineOperand::MO_BlockAddress:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getBlockAddress(),
                        MO.getOffset());
  case MachineOperand::MO_RegisterMask:
  case MachineOperand::MO_RegisterLiveOut:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getRegMask());
  case MachineOperand::MO_Metadata:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMetadata());
  case MachineOperand::MO_MCSymbol:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getMCSymbol());
  case MachineOperand::MO_CFIIndex:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getCFIIndex());
  case MachineOperand::MO_IntrinsicID:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getIntrinsicID());
  case MachineOperand::MO_Predicate:
    return hash_combine(MO.getType(), MO.getTargetFlags(), MO.getPredicate());
  }
  llvm_unreachable("Invalid machine operand type");
}
bool ARMAsmPrinter::lowerOperand(const MachineOperand &MO,
                                 MCOperand &MCOp) {
  switch (MO.getType()) {
  default:
    assert(0 && "unknown operand type");
    return false;
  case MachineOperand::MO_Register:
    // Ignore all non-CPSR implicit register operands.
    if (MO.isImplicit() && MO.getReg() != ARM::CPSR)
      return false;
    assert(!MO.getSubReg() && "Subregs should be eliminated!");
    MCOp = MCOperand::CreateReg(MO.getReg());
    break;
  case MachineOperand::MO_Immediate:
    MCOp = MCOperand::CreateImm(MO.getImm());
    break;
  case MachineOperand::MO_MachineBasicBlock:
    MCOp = MCOperand::CreateExpr(MCSymbolRefExpr::Create(
        MO.getMBB()->getSymbol(), OutContext));
    break;
  case MachineOperand::MO_GlobalAddress:
    MCOp = GetSymbolRef(MO, Mang->getSymbol(MO.getGlobal()));
    break;
  case MachineOperand::MO_ExternalSymbol:
   MCOp = GetSymbolRef(MO,
                        GetExternalSymbolSymbol(MO.getSymbolName()));
    break;
  case MachineOperand::MO_JumpTableIndex:
    MCOp = GetSymbolRef(MO, GetJTISymbol(MO.getIndex()));
    break;
  case MachineOperand::MO_ConstantPoolIndex:
    MCOp = GetSymbolRef(MO, GetCPISymbol(MO.getIndex()));
    break;
  case MachineOperand::MO_BlockAddress:
    MCOp = GetSymbolRef(MO, GetBlockAddressSymbol(MO.getBlockAddress()));
    break;
  case MachineOperand::MO_FPImmediate: {
    APFloat Val = MO.getFPImm()->getValueAPF();
    bool ignored;
    Val.convert(APFloat::IEEEdouble, APFloat::rmTowardZero, &ignored);
    MCOp = MCOperand::CreateFPImm(Val.convertToDouble());
    break;
  }
  }
  return true;
}
MCOperand SampleMCInstLower::
LowerSymbolOperand(const MachineOperand &MO,
                   MachineOperandType MOTy) const {
  DEBUG(dbgs() << ">>> LowerSymbolOperand <<<\n");

  switch(MO.getTargetFlags()) {
    default: llvm_unreachable("Invalid target flag!");
    case 0: break;
  }

  const MCSymbol *Symbol;
  unsigned Offset = 0;
  switch (MOTy) {
  case MachineOperand::MO_MachineBasicBlock:
    Symbol = MO.getMBB()->getSymbol();
    break;
  case MachineOperand::MO_GlobalAddress:
    Symbol = Mang.getSymbol(MO.getGlobal());
    Offset = MO.getOffset();
    break;
  case MachineOperand::MO_BlockAddress:
    Symbol = Printer.GetBlockAddressSymbol(MO.getBlockAddress());
    break;
  case MachineOperand::MO_ExternalSymbol:
    Symbol = Printer.GetExternalSymbolSymbol(MO.getSymbolName());
    break;
  case MachineOperand::MO_JumpTableIndex:
    Symbol = Printer.GetJTISymbol(MO.getIndex());
    break;
  case MachineOperand::MO_ConstantPoolIndex:
    Symbol = Printer.GetCPISymbol(MO.getIndex());
    Offset = MO.getOffset();
    break;
  default:
    llvm_unreachable("<unknown operand type>");
  }

  const MCExpr *Expr = MCSymbolRefExpr::Create(Symbol, Ctx);

  if (Offset) {
    const MCConstantExpr *OffsetExpr =  MCConstantExpr::Create(Offset, Ctx);
    Expr = MCBinaryExpr::CreateAdd(Expr, OffsetExpr, Ctx);
  }

  return MCOperand::CreateExpr(Expr);
}
bool AArch64AsmPrinter::lowerOperand(const MachineOperand &MO,
                                     MCOperand &MCOp) const {
  switch (MO.getType()) {
  default: llvm_unreachable("unknown operand type");
  case MachineOperand::MO_Register:
    if (MO.isImplicit())
      return false;
    assert(!MO.getSubReg() && "Subregs should be eliminated!");
    MCOp = MCOperand::CreateReg(MO.getReg());
    break;
  case MachineOperand::MO_Immediate:
    MCOp = MCOperand::CreateImm(MO.getImm());
    break;
  case MachineOperand::MO_FPImmediate: {
    assert(MO.getFPImm()->isZero() && "Only fp imm 0.0 is supported");
    MCOp = MCOperand::CreateFPImm(0.0);
    break;
  }
  case MachineOperand::MO_BlockAddress:
    MCOp = lowerSymbolOperand(MO, GetBlockAddressSymbol(MO.getBlockAddress()));
    break;
  case MachineOperand::MO_ExternalSymbol:
    MCOp = lowerSymbolOperand(MO, GetExternalSymbolSymbol(MO.getSymbolName()));
    break;
  case MachineOperand::MO_GlobalAddress:
    MCOp = lowerSymbolOperand(MO, getSymbol(MO.getGlobal()));
    break;
  case MachineOperand::MO_MachineBasicBlock:
    MCOp = MCOperand::CreateExpr(MCSymbolRefExpr::Create(
                                   MO.getMBB()->getSymbol(), OutContext));
    break;
  case MachineOperand::MO_JumpTableIndex:
    MCOp = lowerSymbolOperand(MO, GetJTISymbol(MO.getIndex()));
    break;
  case MachineOperand::MO_ConstantPoolIndex:
    MCOp = lowerSymbolOperand(MO, GetCPISymbol(MO.getIndex()));
    break;
  case MachineOperand::MO_RegisterMask:
    // Ignore call clobbers
    return false;

  }

  return true;
}
bool AArch64MCInstLower::lowerOperand(const MachineOperand &MO,
                                      MCOperand &MCOp) const {
  switch (MO.getType()) {
  default:
    llvm_unreachable("unknown operand type");
  case MachineOperand::MO_Register:
    // Ignore all implicit register operands.
    if (MO.isImplicit())
      return false;
    MCOp = MCOperand::createReg(MO.getReg());
    break;
  case MachineOperand::MO_RegisterMask:
    // Regmasks are like implicit defs.
    return false;
  case MachineOperand::MO_Immediate:
    MCOp = MCOperand::createImm(MO.getImm());
    break;
  case MachineOperand::MO_MachineBasicBlock:
    MCOp = MCOperand::createExpr(
        MCSymbolRefExpr::create(MO.getMBB()->getSymbol(), Ctx));
    break;
  case MachineOperand::MO_GlobalAddress:
    MCOp = LowerSymbolOperand(MO, GetGlobalAddressSymbol(MO));
    break;
  case MachineOperand::MO_ExternalSymbol:
    MCOp = LowerSymbolOperand(MO, GetExternalSymbolSymbol(MO));
    break;
  case MachineOperand::MO_MCSymbol:
    MCOp = LowerSymbolOperand(MO, MO.getMCSymbol());
    break;
  case MachineOperand::MO_JumpTableIndex:
    MCOp = LowerSymbolOperand(MO, Printer.GetJTISymbol(MO.getIndex()));
    break;
  case MachineOperand::MO_ConstantPoolIndex:
    MCOp = LowerSymbolOperand(MO, Printer.GetCPISymbol(MO.getIndex()));
    break;
  case MachineOperand::MO_BlockAddress:
    MCOp = LowerSymbolOperand(
        MO, Printer.GetBlockAddressSymbol(MO.getBlockAddress()));
    break;
  }
  return true;
}
MCOperand SystemZMCInstLower::lowerOperand(const MachineOperand &MO) const {
  switch (MO.getType()) {
  default:
    llvm_unreachable("unknown operand type");

  case MachineOperand::MO_Register:
    return MCOperand::CreateReg(MO.getReg());

  case MachineOperand::MO_Immediate:
    return MCOperand::CreateImm(MO.getImm());

  case MachineOperand::MO_MachineBasicBlock:
    return lowerSymbolOperand(MO, MO.getMBB()->getSymbol(),
                              /* MO has no offset field */0);

  case MachineOperand::MO_GlobalAddress:
    return lowerSymbolOperand(MO, Mang->getSymbol(MO.getGlobal()),
                              MO.getOffset());

  case MachineOperand::MO_ExternalSymbol: {
    StringRef Name = MO.getSymbolName();
    return lowerSymbolOperand(MO, AsmPrinter.GetExternalSymbolSymbol(Name),
                              MO.getOffset());
  }

  case MachineOperand::MO_JumpTableIndex:
    return lowerSymbolOperand(MO, AsmPrinter.GetJTISymbol(MO.getIndex()),
                              /* MO has no offset field */0);

  case MachineOperand::MO_ConstantPoolIndex:
    return lowerSymbolOperand(MO, AsmPrinter.GetCPISymbol(MO.getIndex()),
                              MO.getOffset());

  case MachineOperand::MO_BlockAddress: {
    const BlockAddress *BA = MO.getBlockAddress();
    return lowerSymbolOperand(MO, AsmPrinter.GetBlockAddressSymbol(BA),
                              MO.getOffset());
  }
  }
}
Exemple #17
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bool llvm::LowerRISCVMachineOperandToMCOperand(const MachineOperand &MO,
                                               MCOperand &MCOp,
                                               const AsmPrinter &AP) {
  switch (MO.getType()) {
  default:
    report_fatal_error("LowerRISCVMachineInstrToMCInst: unknown operand type");
  case MachineOperand::MO_Register:
    // Ignore all implicit register operands.
    if (MO.isImplicit())
      return false;
    MCOp = MCOperand::createReg(MO.getReg());
    break;
  case MachineOperand::MO_RegisterMask:
    // Regmasks are like implicit defs.
    return false;
  case MachineOperand::MO_Immediate:
    MCOp = MCOperand::createImm(MO.getImm());
    break;
  case MachineOperand::MO_MachineBasicBlock:
    MCOp = lowerSymbolOperand(MO, MO.getMBB()->getSymbol(), AP);
    break;
  case MachineOperand::MO_GlobalAddress:
    MCOp = lowerSymbolOperand(MO, AP.getSymbol(MO.getGlobal()), AP);
    break;
  case MachineOperand::MO_BlockAddress:
    MCOp = lowerSymbolOperand(
        MO, AP.GetBlockAddressSymbol(MO.getBlockAddress()), AP);
    break;
  case MachineOperand::MO_ExternalSymbol:
    MCOp = lowerSymbolOperand(
        MO, AP.GetExternalSymbolSymbol(MO.getSymbolName()), AP);
    break;
  case MachineOperand::MO_ConstantPoolIndex:
    MCOp = lowerSymbolOperand(MO, AP.GetCPISymbol(MO.getIndex()), AP);
    break;
  }
  return true;
}
bool llvm::LowerPPCMachineOperandToMCOperand(const MachineOperand &MO,
                                             MCOperand &OutMO, AsmPrinter &AP,
                                             bool isDarwin) {
  switch (MO.getType()) {
  default:
    llvm_unreachable("unknown operand type");
  case MachineOperand::MO_Register:
    assert(!MO.getSubReg() && "Subregs should be eliminated!");
    assert(MO.getReg() > PPC::NoRegister &&
           MO.getReg() < PPC::NUM_TARGET_REGS &&
           "Invalid register for this target!");
    OutMO = MCOperand::createReg(MO.getReg());
    return true;
  case MachineOperand::MO_Immediate:
    OutMO = MCOperand::createImm(MO.getImm());
    return true;
  case MachineOperand::MO_MachineBasicBlock:
    OutMO = MCOperand::createExpr(
        MCSymbolRefExpr::create(MO.getMBB()->getSymbol(), AP.OutContext));
    return true;
  case MachineOperand::MO_GlobalAddress:
  case MachineOperand::MO_ExternalSymbol:
    OutMO = GetSymbolRef(MO, GetSymbolFromOperand(MO, AP), AP, isDarwin);
    return true;
  case MachineOperand::MO_JumpTableIndex:
    OutMO = GetSymbolRef(MO, AP.GetJTISymbol(MO.getIndex()), AP, isDarwin);
    return true;
  case MachineOperand::MO_ConstantPoolIndex:
    OutMO = GetSymbolRef(MO, AP.GetCPISymbol(MO.getIndex()), AP, isDarwin);
    return true;
  case MachineOperand::MO_BlockAddress:
    OutMO = GetSymbolRef(MO, AP.GetBlockAddressSymbol(MO.getBlockAddress()), AP,
                         isDarwin);
    return true;
  case MachineOperand::MO_RegisterMask:
    return false;
  }
}
Exemple #19
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static MCOperand LowerSymbolOperand(const MachineInstr *MI,
                                    const MachineOperand &MO,
                                    AsmPrinter &AP) {

  SparcMCExpr::VariantKind Kind =
    (SparcMCExpr::VariantKind)MO.getTargetFlags();
  const MCSymbol *Symbol = nullptr;

  switch(MO.getType()) {
  default: llvm_unreachable("Unknown type in LowerSymbolOperand");
  case MachineOperand::MO_MachineBasicBlock:
    Symbol = MO.getMBB()->getSymbol();
    break;

  case MachineOperand::MO_GlobalAddress:
    Symbol = AP.getSymbol(MO.getGlobal());
    break;

  case MachineOperand::MO_BlockAddress:
    Symbol = AP.GetBlockAddressSymbol(MO.getBlockAddress());
    break;

  case MachineOperand::MO_ExternalSymbol:
    Symbol = AP.GetExternalSymbolSymbol(MO.getSymbolName());
    break;

  case MachineOperand::MO_ConstantPoolIndex:
    Symbol = AP.GetCPISymbol(MO.getIndex());
    break;
  }

  const MCSymbolRefExpr *MCSym = MCSymbolRefExpr::Create(Symbol,
                                                         AP.OutContext);
  const SparcMCExpr *expr = SparcMCExpr::Create(Kind, MCSym,
                                                AP.OutContext);
  return MCOperand::createExpr(expr);
}
Exemple #20
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/// isIdenticalTo - Return true if this operand is identical to the specified
/// operand. Note that this should stay in sync with the hash_value overload
/// below.
bool MachineOperand::isIdenticalTo(const MachineOperand &Other) const {
  if (getType() != Other.getType() ||
      getTargetFlags() != Other.getTargetFlags())
    return false;

  switch (getType()) {
  case MachineOperand::MO_Register:
    return getReg() == Other.getReg() && isDef() == Other.isDef() &&
           getSubReg() == Other.getSubReg();
  case MachineOperand::MO_Immediate:
    return getImm() == Other.getImm();
  case MachineOperand::MO_CImmediate:
    return getCImm() == Other.getCImm();
  case MachineOperand::MO_FPImmediate:
    return getFPImm() == Other.getFPImm();
  case MachineOperand::MO_MachineBasicBlock:
    return getMBB() == Other.getMBB();
  case MachineOperand::MO_FrameIndex:
    return getIndex() == Other.getIndex();
  case MachineOperand::MO_ConstantPoolIndex:
  case MachineOperand::MO_TargetIndex:
    return getIndex() == Other.getIndex() && getOffset() == Other.getOffset();
  case MachineOperand::MO_JumpTableIndex:
    return getIndex() == Other.getIndex();
  case MachineOperand::MO_GlobalAddress:
    return getGlobal() == Other.getGlobal() && getOffset() == Other.getOffset();
  case MachineOperand::MO_ExternalSymbol:
    return strcmp(getSymbolName(), Other.getSymbolName()) == 0 &&
           getOffset() == Other.getOffset();
  case MachineOperand::MO_BlockAddress:
    return getBlockAddress() == Other.getBlockAddress() &&
           getOffset() == Other.getOffset();
  case MachineOperand::MO_RegisterMask:
  case MachineOperand::MO_RegisterLiveOut: {
    // Shallow compare of the two RegMasks
    const uint32_t *RegMask = getRegMask();
    const uint32_t *OtherRegMask = Other.getRegMask();
    if (RegMask == OtherRegMask)
      return true;

    if (const MachineFunction *MF = getMFIfAvailable(*this)) {
      // Calculate the size of the RegMask
      const TargetRegisterInfo *TRI = MF->getSubtarget().getRegisterInfo();
      unsigned RegMaskSize = (TRI->getNumRegs() + 31) / 32;

      // Deep compare of the two RegMasks
      return std::equal(RegMask, RegMask + RegMaskSize, OtherRegMask);
    }
    // We don't know the size of the RegMask, so we can't deep compare the two
    // reg masks.
    return false;
  }
  case MachineOperand::MO_MCSymbol:
    return getMCSymbol() == Other.getMCSymbol();
  case MachineOperand::MO_CFIIndex:
    return getCFIIndex() == Other.getCFIIndex();
  case MachineOperand::MO_Metadata:
    return getMetadata() == Other.getMetadata();
  case MachineOperand::MO_IntrinsicID:
    return getIntrinsicID() == Other.getIntrinsicID();
  case MachineOperand::MO_Predicate:
    return getPredicate() == Other.getPredicate();
  }
  llvm_unreachable("Invalid machine operand type");
}
void HexagonCopyToCombine::emitCombineII(MachineBasicBlock::iterator &InsertPt,
                                         unsigned DoubleDestReg,
                                         MachineOperand &HiOperand,
                                         MachineOperand &LoOperand) {
  DebugLoc DL = InsertPt->getDebugLoc();
  MachineBasicBlock *BB = InsertPt->getParent();

  // Handle globals.
  if (HiOperand.isGlobal()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
      .addGlobalAddress(HiOperand.getGlobal(), HiOperand.getOffset(),
                        HiOperand.getTargetFlags())
      .addImm(LoOperand.getImm());
    return;
  }
  if (LoOperand.isGlobal()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineii), DoubleDestReg)
      .addImm(HiOperand.getImm())
      .addGlobalAddress(LoOperand.getGlobal(), LoOperand.getOffset(),
                        LoOperand.getTargetFlags());
    return;
  }

  // Handle block addresses.
  if (HiOperand.isBlockAddress()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
      .addBlockAddress(HiOperand.getBlockAddress(), HiOperand.getOffset(),
                       HiOperand.getTargetFlags())
      .addImm(LoOperand.getImm());
    return;
  }
  if (LoOperand.isBlockAddress()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineii), DoubleDestReg)
      .addImm(HiOperand.getImm())
      .addBlockAddress(LoOperand.getBlockAddress(), LoOperand.getOffset(),
                       LoOperand.getTargetFlags());
    return;
  }

  // Handle jump tables.
  if (HiOperand.isJTI()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
      .addJumpTableIndex(HiOperand.getIndex(), HiOperand.getTargetFlags())
      .addImm(LoOperand.getImm());
    return;
  }
  if (LoOperand.isJTI()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineii), DoubleDestReg)
      .addImm(HiOperand.getImm())
      .addJumpTableIndex(LoOperand.getIndex(), LoOperand.getTargetFlags());
    return;
  }

  // Handle constant pools.
  if (HiOperand.isCPI()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
      .addConstantPoolIndex(HiOperand.getIndex(), HiOperand.getOffset(),
                            HiOperand.getTargetFlags())
      .addImm(LoOperand.getImm());
    return;
  }
  if (LoOperand.isCPI()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineii), DoubleDestReg)
      .addImm(HiOperand.getImm())
      .addConstantPoolIndex(LoOperand.getIndex(), LoOperand.getOffset(),
                            LoOperand.getTargetFlags());
    return;
  }

  // First preference should be given to Hexagon::A2_combineii instruction
  // as it can include U6 (in Hexagon::A4_combineii) as well.
  // In this instruction, HiOperand is const extended, if required.
  if (isInt<8>(LoOperand.getImm())) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
      .addImm(HiOperand.getImm())
      .addImm(LoOperand.getImm());
      return;
  }

  // In this instruction, LoOperand is const extended, if required.
  if (isInt<8>(HiOperand.getImm())) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineii), DoubleDestReg)
      .addImm(HiOperand.getImm())
      .addImm(LoOperand.getImm());
    return;
  }

  // Insert new combine instruction.
  //  DoubleRegDest = combine #HiImm, #LoImm
  BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
    .addImm(HiOperand.getImm())
    .addImm(LoOperand.getImm());
}
MCOperand MipsMCInstLower::LowerSymbolOperand(const MachineOperand &MO,
                                              MachineOperandType MOTy,
                                              unsigned Offset) const {
  MCSymbolRefExpr::VariantKind Kind = MCSymbolRefExpr::VK_None;
  MipsMCExpr::MipsExprKind TargetKind = MipsMCExpr::MEK_None;
  bool IsGpOff = false;
  const MCSymbol *Symbol;

  switch(MO.getTargetFlags()) {
  default:
    llvm_unreachable("Invalid target flag!");
  case MipsII::MO_NO_FLAG:
    break;
  case MipsII::MO_GPREL:
    TargetKind = MipsMCExpr::MEK_GPREL;
    break;
  case MipsII::MO_GOT_CALL:
    TargetKind = MipsMCExpr::MEK_GOT_CALL;
    break;
  case MipsII::MO_GOT:
    TargetKind = MipsMCExpr::MEK_GOT;
    break;
  case MipsII::MO_ABS_HI:
    TargetKind = MipsMCExpr::MEK_HI;
    break;
  case MipsII::MO_ABS_LO:
    TargetKind = MipsMCExpr::MEK_LO;
    break;
  case MipsII::MO_TLSGD:
    TargetKind = MipsMCExpr::MEK_TLSGD;
    break;
  case MipsII::MO_TLSLDM:
    TargetKind = MipsMCExpr::MEK_TLSLDM;
    break;
  case MipsII::MO_DTPREL_HI:
    TargetKind = MipsMCExpr::MEK_DTPREL_HI;
    break;
  case MipsII::MO_DTPREL_LO:
    TargetKind = MipsMCExpr::MEK_DTPREL_LO;
    break;
  case MipsII::MO_GOTTPREL:
    TargetKind = MipsMCExpr::MEK_GOTTPREL;
    break;
  case MipsII::MO_TPREL_HI:
    TargetKind = MipsMCExpr::MEK_TPREL_HI;
    break;
  case MipsII::MO_TPREL_LO:
    TargetKind = MipsMCExpr::MEK_TPREL_LO;
    break;
  case MipsII::MO_GPOFF_HI:
    TargetKind = MipsMCExpr::MEK_HI;
    IsGpOff = true;
    break;
  case MipsII::MO_GPOFF_LO:
    TargetKind = MipsMCExpr::MEK_LO;
    IsGpOff = true;
    break;
  case MipsII::MO_GOT_DISP:
    TargetKind = MipsMCExpr::MEK_GOT_DISP;
    break;
  case MipsII::MO_GOT_HI16:
    TargetKind = MipsMCExpr::MEK_GOT_HI16;
    break;
  case MipsII::MO_GOT_LO16:
    TargetKind = MipsMCExpr::MEK_GOT_LO16;
    break;
  case MipsII::MO_GOT_PAGE:
    TargetKind = MipsMCExpr::MEK_GOT_PAGE;
    break;
  case MipsII::MO_GOT_OFST:
    TargetKind = MipsMCExpr::MEK_GOT_OFST;
    break;
  case MipsII::MO_HIGHER:
    TargetKind = MipsMCExpr::MEK_HIGHER;
    break;
  case MipsII::MO_HIGHEST:
    TargetKind = MipsMCExpr::MEK_HIGHEST;
    break;
  case MipsII::MO_CALL_HI16:
    TargetKind = MipsMCExpr::MEK_CALL_HI16;
    break;
  case MipsII::MO_CALL_LO16:
    TargetKind = MipsMCExpr::MEK_CALL_LO16;
    break;
  }

  switch (MOTy) {
  case MachineOperand::MO_MachineBasicBlock:
    Symbol = MO.getMBB()->getSymbol();
    break;

  case MachineOperand::MO_GlobalAddress:
    Symbol = AsmPrinter.getSymbol(MO.getGlobal());
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_BlockAddress:
    Symbol = AsmPrinter.GetBlockAddressSymbol(MO.getBlockAddress());
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_ExternalSymbol:
    Symbol = AsmPrinter.GetExternalSymbolSymbol(MO.getSymbolName());
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_MCSymbol:
    Symbol = MO.getMCSymbol();
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_JumpTableIndex:
    Symbol = AsmPrinter.GetJTISymbol(MO.getIndex());
    break;

  case MachineOperand::MO_ConstantPoolIndex:
    Symbol = AsmPrinter.GetCPISymbol(MO.getIndex());
    Offset += MO.getOffset();
    break;

  default:
    llvm_unreachable("<unknown operand type>");
  }

  const MCExpr *Expr = MCSymbolRefExpr::create(Symbol, Kind, *Ctx);

  if (Offset) {
    // Assume offset is never negative.
    assert(Offset > 0);

    Expr = MCBinaryExpr::createAdd(Expr, MCConstantExpr::create(Offset, *Ctx),
                                   *Ctx);
  }

  if (IsGpOff)
    Expr = MipsMCExpr::createGpOff(TargetKind, Expr, *Ctx);
  else if (TargetKind != MipsMCExpr::MEK_None)
    Expr = MipsMCExpr::create(TargetKind, Expr, *Ctx);

  return MCOperand::createExpr(Expr);
}
Exemple #23
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void MIPrinter::print(const MachineOperand &Op, const TargetRegisterInfo *TRI) {
  printTargetFlags(Op);
  switch (Op.getType()) {
  case MachineOperand::MO_Register:
    // TODO: Print the other register flags.
    if (Op.isImplicit())
      OS << (Op.isDef() ? "implicit-def " : "implicit ");
    if (Op.isDead())
      OS << "dead ";
    if (Op.isKill())
      OS << "killed ";
    if (Op.isUndef())
      OS << "undef ";
    if (Op.isEarlyClobber())
      OS << "early-clobber ";
    if (Op.isDebug())
      OS << "debug-use ";
    printReg(Op.getReg(), OS, TRI);
    // Print the sub register.
    if (Op.getSubReg() != 0)
      OS << ':' << TRI->getSubRegIndexName(Op.getSubReg());
    break;
  case MachineOperand::MO_Immediate:
    OS << Op.getImm();
    break;
  case MachineOperand::MO_CImmediate:
    Op.getCImm()->printAsOperand(OS, /*PrintType=*/true, MST);
    break;
  case MachineOperand::MO_FPImmediate:
    Op.getFPImm()->printAsOperand(OS, /*PrintType=*/true, MST);
    break;
  case MachineOperand::MO_MachineBasicBlock:
    printMBBReference(*Op.getMBB());
    break;
  case MachineOperand::MO_FrameIndex:
    printStackObjectReference(Op.getIndex());
    break;
  case MachineOperand::MO_ConstantPoolIndex:
    OS << "%const." << Op.getIndex();
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_TargetIndex: {
    OS << "target-index(";
    if (const auto *Name = getTargetIndexName(
            *Op.getParent()->getParent()->getParent(), Op.getIndex()))
      OS << Name;
    else
      OS << "<unknown>";
    OS << ')';
    printOffset(Op.getOffset());
    break;
  }
  case MachineOperand::MO_JumpTableIndex:
    OS << "%jump-table." << Op.getIndex();
    break;
  case MachineOperand::MO_ExternalSymbol:
    OS << '$';
    printLLVMNameWithoutPrefix(OS, Op.getSymbolName());
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_GlobalAddress:
    Op.getGlobal()->printAsOperand(OS, /*PrintType=*/false, MST);
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_BlockAddress:
    OS << "blockaddress(";
    Op.getBlockAddress()->getFunction()->printAsOperand(OS, /*PrintType=*/false,
                                                        MST);
    OS << ", ";
    printIRBlockReference(*Op.getBlockAddress()->getBasicBlock());
    OS << ')';
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_RegisterMask: {
    auto RegMaskInfo = RegisterMaskIds.find(Op.getRegMask());
    if (RegMaskInfo != RegisterMaskIds.end())
      OS << StringRef(TRI->getRegMaskNames()[RegMaskInfo->second]).lower();
    else
      llvm_unreachable("Can't print this machine register mask yet.");
    break;
  }
  case MachineOperand::MO_Metadata:
    Op.getMetadata()->printAsOperand(OS, MST);
    break;
  case MachineOperand::MO_CFIIndex: {
    const auto &MMI = Op.getParent()->getParent()->getParent()->getMMI();
    print(MMI.getFrameInstructions()[Op.getCFIIndex()], TRI);
    break;
  }
  default:
    // TODO: Print the other machine operands.
    llvm_unreachable("Can't print this machine operand at the moment");
  }
}
Exemple #24
0
void MIPrinter::print(const MachineOperand &Op, const TargetRegisterInfo *TRI,
                      unsigned I, bool ShouldPrintRegisterTies, bool IsDef) {
  printTargetFlags(Op);
  switch (Op.getType()) {
  case MachineOperand::MO_Register:
    if (Op.isImplicit())
      OS << (Op.isDef() ? "implicit-def " : "implicit ");
    else if (!IsDef && Op.isDef())
      // Print the 'def' flag only when the operand is defined after '='.
      OS << "def ";
    if (Op.isInternalRead())
      OS << "internal ";
    if (Op.isDead())
      OS << "dead ";
    if (Op.isKill())
      OS << "killed ";
    if (Op.isUndef())
      OS << "undef ";
    if (Op.isEarlyClobber())
      OS << "early-clobber ";
    if (Op.isDebug())
      OS << "debug-use ";
    printReg(Op.getReg(), OS, TRI);
    // Print the sub register.
    if (Op.getSubReg() != 0)
      OS << ':' << TRI->getSubRegIndexName(Op.getSubReg());
    if (ShouldPrintRegisterTies && Op.isTied() && !Op.isDef())
      OS << "(tied-def " << Op.getParent()->findTiedOperandIdx(I) << ")";
    break;
  case MachineOperand::MO_Immediate:
    OS << Op.getImm();
    break;
  case MachineOperand::MO_CImmediate:
    Op.getCImm()->printAsOperand(OS, /*PrintType=*/true, MST);
    break;
  case MachineOperand::MO_FPImmediate:
    Op.getFPImm()->printAsOperand(OS, /*PrintType=*/true, MST);
    break;
  case MachineOperand::MO_MachineBasicBlock:
    printMBBReference(*Op.getMBB());
    break;
  case MachineOperand::MO_FrameIndex:
    printStackObjectReference(Op.getIndex());
    break;
  case MachineOperand::MO_ConstantPoolIndex:
    OS << "%const." << Op.getIndex();
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_TargetIndex: {
    OS << "target-index(";
    if (const auto *Name = getTargetIndexName(
            *Op.getParent()->getParent()->getParent(), Op.getIndex()))
      OS << Name;
    else
      OS << "<unknown>";
    OS << ')';
    printOffset(Op.getOffset());
    break;
  }
  case MachineOperand::MO_JumpTableIndex:
    OS << "%jump-table." << Op.getIndex();
    break;
  case MachineOperand::MO_ExternalSymbol:
    OS << '$';
    printLLVMNameWithoutPrefix(OS, Op.getSymbolName());
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_GlobalAddress:
    Op.getGlobal()->printAsOperand(OS, /*PrintType=*/false, MST);
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_BlockAddress:
    OS << "blockaddress(";
    Op.getBlockAddress()->getFunction()->printAsOperand(OS, /*PrintType=*/false,
                                                        MST);
    OS << ", ";
    printIRBlockReference(*Op.getBlockAddress()->getBasicBlock());
    OS << ')';
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_RegisterMask: {
    auto RegMaskInfo = RegisterMaskIds.find(Op.getRegMask());
    if (RegMaskInfo != RegisterMaskIds.end())
      OS << StringRef(TRI->getRegMaskNames()[RegMaskInfo->second]).lower();
    else
      llvm_unreachable("Can't print this machine register mask yet.");
    break;
  }
  case MachineOperand::MO_RegisterLiveOut: {
    const uint32_t *RegMask = Op.getRegLiveOut();
    OS << "liveout(";
    bool IsCommaNeeded = false;
    for (unsigned Reg = 0, E = TRI->getNumRegs(); Reg < E; ++Reg) {
      if (RegMask[Reg / 32] & (1U << (Reg % 32))) {
        if (IsCommaNeeded)
          OS << ", ";
        printReg(Reg, OS, TRI);
        IsCommaNeeded = true;
      }
    }
    OS << ")";
    break;
  }
  case MachineOperand::MO_Metadata:
    Op.getMetadata()->printAsOperand(OS, MST);
    break;
  case MachineOperand::MO_MCSymbol:
    OS << "<mcsymbol " << *Op.getMCSymbol() << ">";
    break;
  case MachineOperand::MO_CFIIndex: {
    const auto &MMI = Op.getParent()->getParent()->getParent()->getMMI();
    print(MMI.getFrameInstructions()[Op.getCFIIndex()], TRI);
    break;
  }
  }
}
MCOperand MipsMCInstLower::LowerSymbolOperand(const MachineOperand &MO,
                                              MachineOperandType MOTy,
                                              unsigned Offset) const {
  MCSymbolRefExpr::VariantKind Kind;
  const MCSymbol *Symbol;

  switch(MO.getTargetFlags()) {
  default:                   llvm_unreachable("Invalid target flag!");
  case MipsII::MO_NO_FLAG:   Kind = MCSymbolRefExpr::VK_None; break;
  case MipsII::MO_GPREL:     Kind = MCSymbolRefExpr::VK_Mips_GPREL; break;
  case MipsII::MO_GOT_CALL:  Kind = MCSymbolRefExpr::VK_Mips_GOT_CALL; break;
  case MipsII::MO_GOT16:     Kind = MCSymbolRefExpr::VK_Mips_GOT16; break;
  case MipsII::MO_GOT:       Kind = MCSymbolRefExpr::VK_Mips_GOT; break;
  case MipsII::MO_ABS_HI:    Kind = MCSymbolRefExpr::VK_Mips_ABS_HI; break;
  case MipsII::MO_ABS_LO:    Kind = MCSymbolRefExpr::VK_Mips_ABS_LO; break;
  case MipsII::MO_TLSGD:     Kind = MCSymbolRefExpr::VK_Mips_TLSGD; break;
  case MipsII::MO_TLSLDM:    Kind = MCSymbolRefExpr::VK_Mips_TLSLDM; break;
  case MipsII::MO_DTPREL_HI: Kind = MCSymbolRefExpr::VK_Mips_DTPREL_HI; break;
  case MipsII::MO_DTPREL_LO: Kind = MCSymbolRefExpr::VK_Mips_DTPREL_LO; break;
  case MipsII::MO_GOTTPREL:  Kind = MCSymbolRefExpr::VK_Mips_GOTTPREL; break;
  case MipsII::MO_TPREL_HI:  Kind = MCSymbolRefExpr::VK_Mips_TPREL_HI; break;
  case MipsII::MO_TPREL_LO:  Kind = MCSymbolRefExpr::VK_Mips_TPREL_LO; break;
  case MipsII::MO_GPOFF_HI:  Kind = MCSymbolRefExpr::VK_Mips_GPOFF_HI; break;
  case MipsII::MO_GPOFF_LO:  Kind = MCSymbolRefExpr::VK_Mips_GPOFF_LO; break;
  case MipsII::MO_GOT_DISP:  Kind = MCSymbolRefExpr::VK_Mips_GOT_DISP; break;
  case MipsII::MO_GOT_PAGE:  Kind = MCSymbolRefExpr::VK_Mips_GOT_PAGE; break;
  case MipsII::MO_GOT_OFST:  Kind = MCSymbolRefExpr::VK_Mips_GOT_OFST; break;
  case MipsII::MO_HIGHER:    Kind = MCSymbolRefExpr::VK_Mips_HIGHER; break;
  case MipsII::MO_HIGHEST:   Kind = MCSymbolRefExpr::VK_Mips_HIGHEST; break;
  case MipsII::MO_GOT_HI16:  Kind = MCSymbolRefExpr::VK_Mips_GOT_HI16; break;
  case MipsII::MO_GOT_LO16:  Kind = MCSymbolRefExpr::VK_Mips_GOT_LO16; break;
  case MipsII::MO_CALL_HI16: Kind = MCSymbolRefExpr::VK_Mips_CALL_HI16; break;
  case MipsII::MO_CALL_LO16: Kind = MCSymbolRefExpr::VK_Mips_CALL_LO16; break;
  }

  switch (MOTy) {
  case MachineOperand::MO_MachineBasicBlock:
    Symbol = MO.getMBB()->getSymbol();
    break;

  case MachineOperand::MO_GlobalAddress:
    Symbol = AsmPrinter.getSymbol(MO.getGlobal());
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_BlockAddress:
    Symbol = AsmPrinter.GetBlockAddressSymbol(MO.getBlockAddress());
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_ExternalSymbol:
    Symbol = AsmPrinter.GetExternalSymbolSymbol(MO.getSymbolName());
    Offset += MO.getOffset();
    break;

  case MachineOperand::MO_JumpTableIndex:
    Symbol = AsmPrinter.GetJTISymbol(MO.getIndex());
    break;

  case MachineOperand::MO_ConstantPoolIndex:
    Symbol = AsmPrinter.GetCPISymbol(MO.getIndex());
    Offset += MO.getOffset();
    break;

  default:
    llvm_unreachable("<unknown operand type>");
  }

  const MCSymbolRefExpr *MCSym = MCSymbolRefExpr::Create(Symbol, Kind, *Ctx);

  if (!Offset)
    return MCOperand::CreateExpr(MCSym);

  // Assume offset is never negative.
  assert(Offset > 0);

  const MCConstantExpr *OffsetExpr =  MCConstantExpr::Create(Offset, *Ctx);
  const MCBinaryExpr *Add = MCBinaryExpr::CreateAdd(MCSym, OffsetExpr, *Ctx);
  return MCOperand::CreateExpr(Add);
}
Exemple #26
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void MIPrinter::print(const MachineOperand &Op, const TargetRegisterInfo *TRI,
                      unsigned I, bool ShouldPrintRegisterTies, LLT TypeToPrint,
                      bool IsDef) {
  printTargetFlags(Op);
  switch (Op.getType()) {
  case MachineOperand::MO_Register:
    if (Op.isImplicit())
      OS << (Op.isDef() ? "implicit-def " : "implicit ");
    else if (!IsDef && Op.isDef())
      // Print the 'def' flag only when the operand is defined after '='.
      OS << "def ";
    if (Op.isInternalRead())
      OS << "internal ";
    if (Op.isDead())
      OS << "dead ";
    if (Op.isKill())
      OS << "killed ";
    if (Op.isUndef())
      OS << "undef ";
    if (Op.isEarlyClobber())
      OS << "early-clobber ";
    if (Op.isDebug())
      OS << "debug-use ";
    printReg(Op.getReg(), OS, TRI);
    // Print the sub register.
    if (Op.getSubReg() != 0)
      OS << '.' << TRI->getSubRegIndexName(Op.getSubReg());
    if (ShouldPrintRegisterTies && Op.isTied() && !Op.isDef())
      OS << "(tied-def " << Op.getParent()->findTiedOperandIdx(I) << ")";
    if (TypeToPrint.isValid())
      OS << '(' << TypeToPrint << ')';
    break;
  case MachineOperand::MO_Immediate:
    OS << Op.getImm();
    break;
  case MachineOperand::MO_CImmediate:
    Op.getCImm()->printAsOperand(OS, /*PrintType=*/true, MST);
    break;
  case MachineOperand::MO_FPImmediate:
    Op.getFPImm()->printAsOperand(OS, /*PrintType=*/true, MST);
    break;
  case MachineOperand::MO_MachineBasicBlock:
    printMBBReference(*Op.getMBB());
    break;
  case MachineOperand::MO_FrameIndex:
    printStackObjectReference(Op.getIndex());
    break;
  case MachineOperand::MO_ConstantPoolIndex:
    OS << "%const." << Op.getIndex();
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_TargetIndex:
    OS << "target-index(";
    if (const auto *Name = getTargetIndexName(
            *Op.getParent()->getParent()->getParent(), Op.getIndex()))
      OS << Name;
    else
      OS << "<unknown>";
    OS << ')';
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_JumpTableIndex:
    OS << "%jump-table." << Op.getIndex();
    break;
  case MachineOperand::MO_ExternalSymbol: {
    StringRef Name = Op.getSymbolName();
    OS << '$';
    if (Name.empty()) {
      OS << "\"\"";
    } else {
      printLLVMNameWithoutPrefix(OS, Name);
    }
    printOffset(Op.getOffset());
    break;
  }
  case MachineOperand::MO_GlobalAddress:
    Op.getGlobal()->printAsOperand(OS, /*PrintType=*/false, MST);
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_BlockAddress:
    OS << "blockaddress(";
    Op.getBlockAddress()->getFunction()->printAsOperand(OS, /*PrintType=*/false,
                                                        MST);
    OS << ", ";
    printIRBlockReference(*Op.getBlockAddress()->getBasicBlock());
    OS << ')';
    printOffset(Op.getOffset());
    break;
  case MachineOperand::MO_RegisterMask: {
    auto RegMaskInfo = RegisterMaskIds.find(Op.getRegMask());
    if (RegMaskInfo != RegisterMaskIds.end())
      OS << StringRef(TRI->getRegMaskNames()[RegMaskInfo->second]).lower();
    else
      printCustomRegMask(Op.getRegMask(), OS, TRI);
    break;
  }
  case MachineOperand::MO_RegisterLiveOut: {
    const uint32_t *RegMask = Op.getRegLiveOut();
    OS << "liveout(";
    bool IsCommaNeeded = false;
    for (unsigned Reg = 0, E = TRI->getNumRegs(); Reg < E; ++Reg) {
      if (RegMask[Reg / 32] & (1U << (Reg % 32))) {
        if (IsCommaNeeded)
          OS << ", ";
        printReg(Reg, OS, TRI);
        IsCommaNeeded = true;
      }
    }
    OS << ")";
    break;
  }
  case MachineOperand::MO_Metadata:
    Op.getMetadata()->printAsOperand(OS, MST);
    break;
  case MachineOperand::MO_MCSymbol:
    OS << "<mcsymbol " << *Op.getMCSymbol() << ">";
    break;
  case MachineOperand::MO_CFIIndex: {
    const MachineFunction &MF = *Op.getParent()->getParent()->getParent();
    print(MF.getFrameInstructions()[Op.getCFIIndex()], TRI);
    break;
  }
  case MachineOperand::MO_IntrinsicID: {
    Intrinsic::ID ID = Op.getIntrinsicID();
    if (ID < Intrinsic::num_intrinsics)
      OS << "intrinsic(@" << Intrinsic::getName(ID, None) << ')';
    else {
      const MachineFunction &MF = *Op.getParent()->getParent()->getParent();
      const TargetIntrinsicInfo *TII = MF.getTarget().getIntrinsicInfo();
      OS << "intrinsic(@" << TII->getName(ID) << ')';
    }
    break;
  }
  case MachineOperand::MO_Predicate: {
    auto Pred = static_cast<CmpInst::Predicate>(Op.getPredicate());
    OS << (CmpInst::isIntPredicate(Pred) ? "int" : "float") << "pred("
       << CmpInst::getPredicateName(Pred) << ')';
    break;
  }
  }
}