- // Print out code for the function.
- for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
- I != E; ++I) {
- // Print a label for the basic block.
- O << ".LBB" << CurrentFnName << "_" << I->getNumber() << ":\t"
- << CommentString << " " << I->getBasicBlock()->getName() << "\n";
- for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
- II != E; ++II) {
- // Print the assembly for the instruction.
- O << "\t";
- printMachineInstruction(II);
- }
- }
-
- // We didn't modify anything.
- return false;
-}
-
-void X86ATTAsmPrinter::printOp(const MachineOperand &MO, bool isCallOp) {
- const MRegisterInfo &RI = *TM.getRegisterInfo();
- switch (MO.getType()) {
- case MachineOperand::MO_VirtualRegister:
- case MachineOperand::MO_MachineRegister:
- assert(MRegisterInfo::isPhysicalRegister(MO.getReg()) &&
- "Virtual registers should not make it this far!");
- O << '%';
- for (const char *Name = RI.get(MO.getReg()).Name; *Name; ++Name)
- O << (char)tolower(*Name);
- return;
-
- case MachineOperand::MO_SignExtendedImmed:
- case MachineOperand::MO_UnextendedImmed:
- O << '$' << (int)MO.getImmedValue();
- return;
- case MachineOperand::MO_MachineBasicBlock: {
- MachineBasicBlock *MBBOp = MO.getMachineBasicBlock();
- O << ".LBB" << Mang->getValueName(MBBOp->getParent()->getFunction())
- << "_" << MBBOp->getNumber () << "\t# "
- << MBBOp->getBasicBlock ()->getName ();
- return;
- }
- case MachineOperand::MO_PCRelativeDisp:
- std::cerr << "Shouldn't use addPCDisp() when building X86 MachineInstrs";
- abort ();
- return;
- case MachineOperand::MO_GlobalAddress: {
- if (!isCallOp) O << '$';
- O << Mang->getValueName(MO.getGlobal());
- int Offset = MO.getOffset();
- if (Offset > 0)
- O << "+" << Offset;
- else if (Offset < 0)
- O << Offset;
- return;
- }
- case MachineOperand::MO_ExternalSymbol:
- if (!isCallOp) O << '$';
- O << MO.getSymbolName();
- return;
- default:
- O << "<unknown operand type>"; return;
- }
-}
-
-void X86ATTAsmPrinter::printMemReference(const MachineInstr *MI, unsigned Op){
- assert(isMem(MI, Op) && "Invalid memory reference!");
-
- const MachineOperand &BaseReg = MI->getOperand(Op);
- int ScaleVal = MI->getOperand(Op+1).getImmedValue();
- const MachineOperand &IndexReg = MI->getOperand(Op+2);
- const MachineOperand &DispSpec = MI->getOperand(Op+3);
-
- if (BaseReg.isFrameIndex()) {
- O << "[frame slot #" << BaseReg.getFrameIndex();
- if (DispSpec.getImmedValue())
- O << " + " << DispSpec.getImmedValue();
- O << "]";
- return;
- } else if (BaseReg.isConstantPoolIndex()) {
- O << ".CPI" << CurrentFnName << "_"
- << BaseReg.getConstantPoolIndex();
- if (DispSpec.getImmedValue())
- O << "+" << DispSpec.getImmedValue();
- if (IndexReg.getReg()) {
- O << "(,";
- printOp(IndexReg);
- if (ScaleVal != 1)
- O << "," << ScaleVal;
- O << ")";
- }
- return;
- }
-
- if (DispSpec.isGlobalAddress()) {
- printOp(DispSpec, true);
- } else {
- int DispVal = DispSpec.getImmedValue();
- if (DispVal)
- O << DispVal;
- }
-
- if (IndexReg.getReg() || BaseReg.getReg()) {
- O << "(";
- if (BaseReg.getReg())
- printOp(BaseReg);
-
- if (IndexReg.getReg()) {
- O << ",";
- printOp(IndexReg);
- if (ScaleVal != 1)
- O << "," << ScaleVal;
- }
-
- O << ")";
- }
-}
-
-
-/// printMachineInstruction -- Print out a single X86 LLVM instruction
-/// MI in Intel syntax to the current output stream.
-///
-void X86ATTAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
- ++EmittedInsts;
- // Call the autogenerated instruction printer routines.
- printInstruction(MI);