// Create an MCInst from a MachineInstr
void llvm::HexagonLowerToMC(const MachineInstr* MI, HexagonMCInst& MCI,
HexagonAsmPrinter& AP) {
MCI.setOpcode(MI->getOpcode());
MCI.setDesc(MI->getDesc());
for (unsigned i = 0, e = MI->getNumOperands(); i < e; i++) {
const MachineOperand &MO = MI->getOperand(i);
MCOperand MCO;
switch (MO.getType()) {
default:
MI->dump();
llvm_unreachable("unknown operand type");
case MachineOperand::MO_Register:
// Ignore all implicit register operands.
if (MO.isImplicit()) continue;
MCO = MCOperand::CreateReg(MO.getReg());
break;
case MachineOperand::MO_FPImmediate: {
APFloat Val = MO.getFPImm()->getValueAPF();
// FP immediates are used only when setting GPRs, so they may be dealt
// with like regular immediates from this point on.
MCO = MCOperand::CreateImm(*Val.bitcastToAPInt().getRawData());
break;
}
case MachineOperand::MO_Immediate:
MCO = MCOperand::CreateImm(MO.getImm());
break;
case MachineOperand::MO_MachineBasicBlock:
MCO = MCOperand::CreateExpr
(MCSymbolRefExpr::Create(MO.getMBB()->getSymbol(),
AP.OutContext));
break;
case MachineOperand::MO_GlobalAddress:
MCO = GetSymbolRef(MO, AP.Mang->getSymbol(MO.getGlobal()), AP);
break;
case MachineOperand::MO_ExternalSymbol:
MCO = GetSymbolRef(MO, AP.GetExternalSymbolSymbol(MO.getSymbolName()),
AP);
break;
case MachineOperand::MO_JumpTableIndex:
MCO = GetSymbolRef(MO, AP.GetJTISymbol(MO.getIndex()), AP);
break;
case MachineOperand::MO_ConstantPoolIndex:
MCO = GetSymbolRef(MO, AP.GetCPISymbol(MO.getIndex()), AP);
break;
case MachineOperand::MO_BlockAddress:
MCO = GetSymbolRef(MO, AP.GetBlockAddressSymbol(MO.getBlockAddress()),AP);
break;
}
MCI.addOperand(MCO);
}
}
// Create an MCInst from a MachineInstr
void llvm::HexagonLowerToMC(MachineInstr const* MI, MCInst& MCB,
HexagonAsmPrinter& AP) {
if(MI->getOpcode() == Hexagon::ENDLOOP0){
HexagonMCInstrInfo::setInnerLoop(MCB);
return;
}
if(MI->getOpcode() == Hexagon::ENDLOOP1){
HexagonMCInstrInfo::setOuterLoop(MCB);
return;
}
MCInst* MCI = new (AP.OutContext) MCInst;
MCI->setOpcode(MI->getOpcode());
assert(MCI->getOpcode() == static_cast<unsigned>(MI->getOpcode()) &&
"MCI opcode should have been set on construction");
for (unsigned i = 0, e = MI->getNumOperands(); i < e; i++) {
const MachineOperand &MO = MI->getOperand(i);
MCOperand MCO;
switch (MO.getType()) {
default:
MI->dump();
llvm_unreachable("unknown operand type");
case MachineOperand::MO_Register:
// Ignore all implicit register operands.
if (MO.isImplicit()) continue;
MCO = MCOperand::createReg(MO.getReg());
break;
case MachineOperand::MO_FPImmediate: {
APFloat Val = MO.getFPImm()->getValueAPF();
// FP immediates are used only when setting GPRs, so they may be dealt
// with like regular immediates from this point on.
MCO = MCOperand::createImm(*Val.bitcastToAPInt().getRawData());
break;
}
case MachineOperand::MO_Immediate:
MCO = MCOperand::createImm(MO.getImm());
break;
case MachineOperand::MO_MachineBasicBlock:
MCO = MCOperand::createExpr
(MCSymbolRefExpr::create(MO.getMBB()->getSymbol(),
AP.OutContext));
break;
case MachineOperand::MO_GlobalAddress:
MCO = GetSymbolRef(MO, AP.getSymbol(MO.getGlobal()), AP);
break;
case MachineOperand::MO_ExternalSymbol:
MCO = GetSymbolRef(MO, AP.GetExternalSymbolSymbol(MO.getSymbolName()),
AP);
break;
case MachineOperand::MO_JumpTableIndex:
MCO = GetSymbolRef(MO, AP.GetJTISymbol(MO.getIndex()), AP);
break;
case MachineOperand::MO_ConstantPoolIndex:
MCO = GetSymbolRef(MO, AP.GetCPISymbol(MO.getIndex()), AP);
break;
case MachineOperand::MO_BlockAddress:
MCO = GetSymbolRef(MO, AP.GetBlockAddressSymbol(MO.getBlockAddress()),AP);
break;
}
MCI->addOperand(MCO);
}
MCB.addOperand(MCOperand::createInst(MCI));
}
