+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:
+ 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;
+}
+
+void llvm::LowerARMMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
+ ARMAsmPrinter &AP) {