Exemplo n.º 1
0
/// getMachineOpValue - Return binary encoding of operand. If the machine
/// operand requires relocation, record the relocation and return zero.
unsigned MipsCodeEmitter::getMachineOpValue(const MachineInstr &MI,
                                            const MachineOperand &MO) const {
  if (MO.isReg())
    return MipsRegisterInfo::getRegisterNumbering(MO.getReg());
  else if (MO.isImm())
    return static_cast<unsigned>(MO.getImm());
  else if (MO.isGlobal()) {
    if (MI.getOpcode() == Mips::ULW || MI.getOpcode() == Mips::USW ||
          MI.getOpcode() == Mips::ULH || MI.getOpcode() == Mips::ULHu)
      emitGlobalAddressUnaligned(MO.getGlobal(), getRelocation(MI, MO), 4);
    else if (MI.getOpcode() == Mips::USH)
      emitGlobalAddressUnaligned(MO.getGlobal(), getRelocation(MI, MO), 8);
    else
      emitGlobalAddress(MO.getGlobal(), getRelocation(MI, MO), true);
  } else if (MO.isSymbol())
    emitExternalSymbolAddress(MO.getSymbolName(), getRelocation(MI, MO));
  else if (MO.isCPI())
    emitConstPoolAddress(MO.getIndex(), getRelocation(MI, MO));
  else if (MO.isJTI())
    emitJumpTableAddress(MO.getIndex(), getRelocation(MI, MO));
  else if (MO.isMBB())
    emitMachineBasicBlock(MO.getMBB(), getRelocation(MI, MO));
  else
    llvm_unreachable("Unable to encode MachineOperand!");
  return 0;
}
Exemplo n.º 2
0
MachineRelocation PPCCodeEmitter::GetRelocation(const MachineOperand &MO, 
                                                unsigned RelocID) const {
  // If in PIC mode, we need to encode the negated address of the
  // 'movepctolr' into the unrelocated field.  After relocation, we'll have
  // &gv-&movepctolr-4 in the imm field.  Once &movepctolr is added to the imm
  // field, we get &gv.  This doesn't happen for branch relocations, which are
  // always implicitly pc relative.
  intptr_t Cst = 0;
  if (TM.getRelocationModel() == Reloc::PIC_) {
    assert(MovePCtoLROffset && "MovePCtoLR not seen yet?");
    Cst = -(intptr_t)MovePCtoLROffset - 4;
  }
  
  if (MO.isGlobal())
    return MachineRelocation::getGV(MCE.getCurrentPCOffset(), RelocID,
                                    const_cast<GlobalValue *>(MO.getGlobal()),
                                    Cst, isa<Function>(MO.getGlobal()));
  if (MO.isSymbol())
    return MachineRelocation::getExtSym(MCE.getCurrentPCOffset(),
                                        RelocID, MO.getSymbolName(), Cst);
  if (MO.isCPI())
    return MachineRelocation::getConstPool(MCE.getCurrentPCOffset(),
                                           RelocID, MO.getIndex(), Cst);

  if (MO.isMBB())
    return MachineRelocation::getBB(MCE.getCurrentPCOffset(),
                                    RelocID, MO.getMBB());
  
  assert(MO.isJTI());
  return MachineRelocation::getJumpTable(MCE.getCurrentPCOffset(),
                                         RelocID, MO.getIndex(), Cst);
}
Exemplo n.º 3
0
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;
}
Exemplo n.º 4
0
/// getMachineOpValue - Return binary encoding of operand. If the machine
/// operand requires relocation, record the relocation and return zero.
unsigned ARMCodeEmitter::getMachineOpValue(const MachineInstr &MI,
                                           const MachineOperand &MO) {
  if (MO.isReg())
    return ARMRegisterInfo::getRegisterNumbering(MO.getReg());
  else if (MO.isImm())
    return static_cast<unsigned>(MO.getImm());
  else if (MO.isGlobal())
    emitGlobalAddress(MO.getGlobal(), ARM::reloc_arm_branch, true, false);
  else if (MO.isSymbol())
    emitExternalSymbolAddress(MO.getSymbolName(), ARM::reloc_arm_branch);
  else if (MO.isCPI()) {
    const TargetInstrDesc &TID = MI.getDesc();
    // For VFP load, the immediate offset is multiplied by 4.
    unsigned Reloc =  ((TID.TSFlags & ARMII::FormMask) == ARMII::VFPLdStFrm)
      ? ARM::reloc_arm_vfp_cp_entry : ARM::reloc_arm_cp_entry;
    emitConstPoolAddress(MO.getIndex(), Reloc);
  } else if (MO.isJTI())
    emitJumpTableAddress(MO.getIndex(), ARM::reloc_arm_relative);
  else if (MO.isMBB())
    emitMachineBasicBlock(MO.getMBB(), ARM::reloc_arm_branch);
  else {
#ifndef NDEBUG
    errs() << MO;
#endif
    llvm_unreachable(0);
  }
  return 0;
}
Exemplo n.º 5
0
void MIPrinter::print(const MachineOperand &Op, const TargetRegisterInfo *TRI) {
  switch (Op.getType()) {
  case MachineOperand::MO_Register:
    // TODO: Print register flags.
    printReg(Op.getReg(), OS, TRI);
    // TODO: Print sub register.
    break;
  case MachineOperand::MO_Immediate:
    OS << Op.getImm();
    break;
  case MachineOperand::MO_MachineBasicBlock:
    OS << "%bb." << Op.getMBB()->getNumber();
    if (const auto *BB = Op.getMBB()->getBasicBlock()) {
      if (BB->hasName())
        OS << '.' << BB->getName();
    }
    break;
  case MachineOperand::MO_GlobalAddress:
    // FIXME: Make this faster - print as operand will create a slot tracker to
    // print unnamed values for the whole module every time it's called, which
    // is inefficient.
    Op.getGlobal()->printAsOperand(OS, /*PrintType=*/false, &M);
    // TODO: Print offset and target flags.
    break;
  default:
    // TODO: Print the other machine operands.
    llvm_unreachable("Can't print this machine operand at the moment");
  }
}
Exemplo n.º 6
0
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);
}
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;
  }

  // Insert new combine instruction.
  //  DoubleRegDest = combine HiReg, #LoImm
  BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineri), DoubleDestReg)
    .addReg(HiReg, HiRegKillFlag)
    .addImm(LoOperand.getImm());
}
Exemplo n.º 8
0
/// isIdenticalTo - Return true if this operand is identical to the specified
/// operand.
bool MachineOperand::isIdenticalTo(const MachineOperand &Other) const {
  if (getType() != Other.getType()) return false;
  
  switch (getType()) {
  default: assert(0 && "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();
  }
}
Exemplo n.º 9
0
unsigned MipsCodeEmitter::getOperandValue(const MachineOperand &MO,
    unsigned relocType) {
  switch (MO.getType()) {
  case MachineOperand::MO_Immediate:
    return MO.getImm();
  case MachineOperand::MO_GlobalAddress:
    emitGlobalAddress(MO.getGlobal(), relocType, false);
    return 0;
  case MachineOperand::MO_ExternalSymbol:
    emitExternalSymbolAddress(MO.getSymbolName(), relocType);
    return 0;
  case MachineOperand::MO_MachineBasicBlock:
    emitMachineBasicBlock(MO.getMBB(), relocType, MCE.getCurrentPCValue());
    return 0;
  case MachineOperand::MO_Register:
    return MipsRegisterInfo::getRegisterNumbering(MO.getReg());
  case MachineOperand::MO_JumpTableIndex:
    emitJumpTableAddress(MO.getIndex(), relocType);
    return 0;
  case MachineOperand::MO_ConstantPoolIndex:
    emitConstPoolAddress(MO.getIndex(), relocType);
    return 0;
  default: return 0;
  }
}
Exemplo n.º 10
0
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));
}
Exemplo n.º 11
0
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 constant extended immediates.
  if (!isInt<8>(HiOperand.getImm())) {
    assert(isInt<8>(LoOperand.getImm()));
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A2_combineii), DoubleDestReg)
      .addImm(HiOperand.getImm())
      .addImm(LoOperand.getImm());
    return;
  }

  if (!isUInt<6>(LoOperand.getImm())) {
    assert(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());
}
Exemplo n.º 12
0
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());
}
Exemplo n.º 13
0
bool HexagonOptAddrMode::changeLoad(MachineInstr *OldMI, MachineOperand ImmOp,
                                    unsigned ImmOpNum) {
  bool Changed = false;
  MachineBasicBlock *BB = OldMI->getParent();
  auto UsePos = MachineBasicBlock::iterator(OldMI);
  MachineBasicBlock::instr_iterator InsertPt = UsePos.getInstrIterator();
  ++InsertPt;
  unsigned OpStart;
  unsigned OpEnd = OldMI->getNumOperands();
  MachineInstrBuilder MIB;

  if (ImmOpNum == 1) {
    if (HII->getAddrMode(OldMI) == HexagonII::BaseRegOffset) {
      short NewOpCode = HII->getBaseWithLongOffset(OldMI);
      assert(NewOpCode >= 0 && "Invalid New opcode\n");
      MIB = BuildMI(*BB, InsertPt, OldMI->getDebugLoc(), HII->get(NewOpCode));
      MIB.addOperand(OldMI->getOperand(0));
      MIB.addOperand(OldMI->getOperand(2));
      MIB.addOperand(OldMI->getOperand(3));
      MIB.addOperand(ImmOp);
      OpStart = 4;
      Changed = true;
    } else if (HII->getAddrMode(OldMI) == HexagonII::BaseImmOffset) {
      short NewOpCode = HII->getAbsoluteForm(OldMI);
      assert(NewOpCode >= 0 && "Invalid New opcode\n");
      MIB = BuildMI(*BB, InsertPt, OldMI->getDebugLoc(), HII->get(NewOpCode))
                .addOperand(OldMI->getOperand(0));
      const GlobalValue *GV = ImmOp.getGlobal();
      int64_t Offset = ImmOp.getOffset() + OldMI->getOperand(2).getImm();

      MIB.addGlobalAddress(GV, Offset, ImmOp.getTargetFlags());
      OpStart = 3;
      Changed = true;
    } else
      Changed = false;

    DEBUG(dbgs() << "[Changing]: " << *OldMI << "\n");
    DEBUG(dbgs() << "[TO]: " << MIB << "\n");
  } else if (ImmOpNum == 2 && OldMI->getOperand(3).getImm() == 0) {
    short NewOpCode = HII->xformRegToImmOffset(OldMI);
    assert(NewOpCode >= 0 && "Invalid New opcode\n");
    MIB = BuildMI(*BB, InsertPt, OldMI->getDebugLoc(), HII->get(NewOpCode));
    MIB.addOperand(OldMI->getOperand(0));
    MIB.addOperand(OldMI->getOperand(1));
    MIB.addOperand(ImmOp);
    OpStart = 4;
    Changed = true;
    DEBUG(dbgs() << "[Changing]: " << *OldMI << "\n");
    DEBUG(dbgs() << "[TO]: " << MIB << "\n");
  }

  if (Changed)
    for (unsigned i = OpStart; i < OpEnd; ++i)
      MIB.addOperand(OldMI->getOperand(i));

  return Changed;
}
Exemplo n.º 14
0
unsigned MipsCodeEmitter::getJumpTargetOpValue(const MachineInstr &MI,
                                               unsigned OpNo) const {
  MachineOperand MO = MI.getOperand(OpNo);
  if (MO.isGlobal())
    emitGlobalAddress(MO.getGlobal(), getRelocation(MI, MO), true);
  else if (MO.isSymbol())
    emitExternalSymbolAddress(MO.getSymbolName(), getRelocation(MI, MO));
  else if (MO.isMBB())
    emitMachineBasicBlock(MO.getMBB(), getRelocation(MI, MO));
  else
    llvm_unreachable("Unexpected jump target operand kind.");
  return 0;
}
Exemplo n.º 15
0
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);
}
Exemplo n.º 16
0
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;
}
Exemplo n.º 17
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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;
}
Exemplo n.º 18
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void HexagonCopyToCombine::emitCombineIR(MachineBasicBlock::iterator &InsertPt,
                                         unsigned DoubleDestReg,
                                         MachineOperand &HiOperand,
                                         MachineOperand &LoOperand) {
  unsigned LoReg = LoOperand.getReg();
  unsigned LoRegKillFlag = getKillRegState(LoOperand.isKill());

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

  // Handle globals.
  if (HiOperand.isGlobal()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineir), DoubleDestReg)
      .addGlobalAddress(HiOperand.getGlobal(), HiOperand.getOffset(),
                        HiOperand.getTargetFlags())
      .addReg(LoReg, LoRegKillFlag);
    return;
  }
  // Handle block addresses.
  if (HiOperand.isBlockAddress()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineir), DoubleDestReg)
      .addBlockAddress(HiOperand.getBlockAddress(), HiOperand.getOffset(),
                       HiOperand.getTargetFlags())
      .addReg(LoReg, LoRegKillFlag);
    return;
  }
  // Handle jump tables.
  if (HiOperand.isJTI()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineir), DoubleDestReg)
      .addJumpTableIndex(HiOperand.getIndex(), HiOperand.getTargetFlags())
      .addReg(LoReg, LoRegKillFlag);
    return;
  }
  // Handle constant pools.
  if (HiOperand.isCPI()) {
    BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineir), DoubleDestReg)
      .addConstantPoolIndex(HiOperand.getIndex(), HiOperand.getOffset(),
                            HiOperand.getTargetFlags())
      .addReg(LoReg, LoRegKillFlag);
    return;
  }
  // Insert new combine instruction.
  //  DoubleRegDest = combine #HiImm, LoReg
  BuildMI(*BB, InsertPt, DL, TII->get(Hexagon::A4_combineir), DoubleDestReg)
    .addImm(HiOperand.getImm())
    .addReg(LoReg, LoRegKillFlag);
}
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);
}
Exemplo n.º 20
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bool AMDGPUMCInstLower::lowerOperand(const MachineOperand &MO,
                                     MCOperand &MCOp) const {
  switch (MO.getType()) {
  default:
    llvm_unreachable("unknown operand type");
  case MachineOperand::MO_Immediate:
    MCOp = MCOperand::createImm(MO.getImm());
    return true;
  case MachineOperand::MO_Register:
    MCOp = MCOperand::createReg(AMDGPU::getMCReg(MO.getReg(), ST));
    return true;
  case MachineOperand::MO_MachineBasicBlock: {
    if (MO.getTargetFlags() != 0) {
      MCOp = MCOperand::createExpr(
        getLongBranchBlockExpr(*MO.getParent()->getParent(), MO));
    } else {
      MCOp = MCOperand::createExpr(
        MCSymbolRefExpr::create(MO.getMBB()->getSymbol(), Ctx));
    }

    return true;
  }
  case MachineOperand::MO_GlobalAddress: {
    const GlobalValue *GV = MO.getGlobal();
    SmallString<128> SymbolName;
    AP.getNameWithPrefix(SymbolName, GV);
    MCSymbol *Sym = Ctx.getOrCreateSymbol(SymbolName);
    const MCExpr *SymExpr =
      MCSymbolRefExpr::create(Sym, getVariantKind(MO.getTargetFlags()),Ctx);
    const MCExpr *Expr = MCBinaryExpr::createAdd(SymExpr,
      MCConstantExpr::create(MO.getOffset(), Ctx), Ctx);
    MCOp = MCOperand::createExpr(Expr);
    return true;
  }
  case MachineOperand::MO_ExternalSymbol: {
    MCSymbol *Sym = Ctx.getOrCreateSymbol(StringRef(MO.getSymbolName()));
    Sym->setExternal(true);
    const MCSymbolRefExpr *Expr = MCSymbolRefExpr::create(Sym, Ctx);
    MCOp = MCOperand::createExpr(Expr);
    return true;
  }
  case MachineOperand::MO_RegisterMask:
    // Regmasks are like implicit defs.
    return false;
  }
}
Exemplo n.º 21
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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;
}
Exemplo n.º 22
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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");
}
Exemplo n.º 23
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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;
}
Exemplo n.º 24
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void AlphaAsmPrinter::printOp(const MachineOperand &MO, bool IsCallOp) {
  const TargetRegisterInfo &RI = *TM.getRegisterInfo();

  switch (MO.getType()) {
  case MachineOperand::MO_Register:
    O << RI.get(MO.getReg()).AsmName;
    return;

  case MachineOperand::MO_Immediate:
    cerr << "printOp() does not handle immediate values\n";
    abort();
    return;

  case MachineOperand::MO_MachineBasicBlock:
    printBasicBlockLabel(MO.getMBB());
    return;

  case MachineOperand::MO_ConstantPoolIndex:
    O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << "_"
      << MO.getIndex();
    return;

  case MachineOperand::MO_ExternalSymbol:
    O << MO.getSymbolName();
    return;

  case MachineOperand::MO_GlobalAddress: {
    GlobalValue *GV = MO.getGlobal();
    O << Mang->getValueName(GV);
    if (GV->isDeclaration() && GV->hasExternalWeakLinkage())
      ExtWeakSymbols.insert(GV);
    return;
  }

  case MachineOperand::MO_JumpTableIndex:
    O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
      << '_' << MO.getIndex();
    return;

  default:
    O << "<unknown operand type: " << MO.getType() << ">";
    return;
  }
}
Exemplo n.º 25
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/// getMachineOpValue - Return binary encoding of operand. If the machine
/// operand requires relocation, record the relocation and return zero.
unsigned MipsCodeEmitter::getMachineOpValue(const MachineInstr &MI,
                                            const MachineOperand &MO) const {
  if (MO.isReg())
    return TM.getRegisterInfo()->getEncodingValue(MO.getReg());
  else if (MO.isImm())
    return static_cast<unsigned>(MO.getImm());
  else if (MO.isGlobal())
    emitGlobalAddress(MO.getGlobal(), getRelocation(MI, MO), true);
  else if (MO.isSymbol())
    emitExternalSymbolAddress(MO.getSymbolName(), getRelocation(MI, MO));
  else if (MO.isCPI())
    emitConstPoolAddress(MO.getIndex(), getRelocation(MI, MO));
  else if (MO.isJTI())
    emitJumpTableAddress(MO.getIndex(), getRelocation(MI, MO));
  else if (MO.isMBB())
    emitMachineBasicBlock(MO.getMBB(), getRelocation(MI, MO));
  else
    llvm_unreachable("Unable to encode MachineOperand!");
  return 0;
}
Exemplo n.º 26
0
MCOperand PTXAsmPrinter::lowerOperand(const MachineOperand &MO) {
  MCOperand MCOp;
  const PTXMachineFunctionInfo *MFI = MF->getInfo<PTXMachineFunctionInfo>();
  const MCExpr *Expr;
  const char *RegSymbolName;
  switch (MO.getType()) {
  default:
    llvm_unreachable("Unknown operand type");
  case MachineOperand::MO_Register:
    // We create register operands as symbols, since the PTXInstPrinter class
    // has no way to map virtual registers back to a name without some ugly
    // hacks.
    // FIXME: Figure out a better way to handle virtual register naming.
    RegSymbolName = MFI->getRegisterName(MO.getReg());
    Expr = MCSymbolRefExpr::Create(RegSymbolName, MCSymbolRefExpr::VK_None,
                                   OutContext);
    MCOp = MCOperand::CreateExpr(Expr);
    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_FPImmediate:
    APFloat Val = MO.getFPImm()->getValueAPF();
    bool ignored;
    Val.convert(APFloat::IEEEdouble, APFloat::rmTowardZero, &ignored);
    MCOp = MCOperand::CreateFPImm(Val.convertToDouble());
    break;
  }

  return MCOp;
}
Exemplo n.º 27
0
MCOperand rvexMCInstLower::LowerSymbolOperand(const MachineOperand &MO,
                                              MachineOperandType MOTy,
                                              unsigned Offset) const {
  MCSymbolRefExpr::VariantKind Kind;
  const MCSymbol *Symbol;

  switch(MO.getTargetFlags()) {
  default:                   llvm_unreachable("Invalid target flag!");
// rvex_GPREL is for llc -march=rvex -relocation-model=static -rvex-islinux-
//  format=false (global var in .sdata).
  case rvexII::MO_GPREL:     Kind = MCSymbolRefExpr::VK_Cpu0_GPREL; break;

  case rvexII::MO_GOT16:     Kind = MCSymbolRefExpr::VK_Cpu0_GOT16; break;
  case rvexII::MO_GOT:       Kind = MCSymbolRefExpr::VK_Cpu0_GOT; break;
// ABS_HI and ABS_LO is for llc -march=rvex -relocation-model=static (global 
//  var in .data).
  case rvexII::MO_ABS_HI:    Kind = MCSymbolRefExpr::VK_Cpu0_ABS_HI; break;
  case rvexII::MO_ABS_LO:    Kind = MCSymbolRefExpr::VK_Cpu0_ABS_LO; break;
  }

  switch (MOTy) {
  case MachineOperand::MO_GlobalAddress:
    Symbol = Mang->getSymbol(MO.getGlobal());
    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);
}
Exemplo n.º 28
0
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());
  }
  }
}
Exemplo n.º 29
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void AlphaAsmPrinter::printOp(const MachineOperand &MO, bool IsCallOp) {
  const TargetRegisterInfo &RI = *TM.getRegisterInfo();

  switch (MO.getType()) {
  case MachineOperand::MO_Register:
    O << RI.get(MO.getReg()).AsmName;
    return;

  case MachineOperand::MO_Immediate:
    llvm_unreachable("printOp() does not handle immediate values");
    return;

  case MachineOperand::MO_MachineBasicBlock:
    printBasicBlockLabel(MO.getMBB());
    return;

  case MachineOperand::MO_ConstantPoolIndex:
    O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << "_"
      << MO.getIndex();
    return;

  case MachineOperand::MO_ExternalSymbol:
    O << MO.getSymbolName();
    return;

  case MachineOperand::MO_GlobalAddress:
    O << Mang->getMangledName(MO.getGlobal());
    return;

  case MachineOperand::MO_JumpTableIndex:
    O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
      << '_' << MO.getIndex();
    return;

  default:
    O << "<unknown operand type: " << MO.getType() << ">";
    return;
  }
}
Exemplo n.º 30
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void MIPrinter::print(const MachineOperand &Op, const TargetRegisterInfo *TRI) {
    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 ";
        printReg(Op.getReg(), OS, TRI);
        // TODO: Print sub register.
        break;
    case MachineOperand::MO_Immediate:
        OS << Op.getImm();
        break;
    case MachineOperand::MO_MachineBasicBlock:
        printMBBReference(*Op.getMBB());
        break;
    case MachineOperand::MO_GlobalAddress:
        Op.getGlobal()->printAsOperand(OS, /*PrintType=*/false, MST);
        // TODO: Print offset and target flags.
        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;
    }
    default:
        // TODO: Print the other machine operands.
        llvm_unreachable("Can't print this machine operand at the moment");
    }
}