lib/Target/ARM/AsmPrinter/ARMMCInstLower.cpp

//===-- ARMMCInstLower.cpp - Convert ARM MachineInstr to an MCInst --------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains code to lower ARM MachineInstrs to their corresponding
// MCInst records.
//
//===----------------------------------------------------------------------===//

#include "ARMMCInstLower.h"
//#include "ARMMCAsmInfo.h"
//#include "llvm/CodeGen/MachineModuleInfoImpls.h"
#include "llvm/CodeGen/MachineInstr.h"
//#include "llvm/MC/MCContext.h"
//#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
//#include "llvm/MC/MCStreamer.h"
//#include "llvm/Support/FormattedStream.h"
//#include "llvm/Support/Mangler.h"
//#include "llvm/ADT/SmallString.h"
using namespace llvm;


#if 0
const ARMSubtarget &ARMMCInstLower::getSubtarget() const {
  return AsmPrinter.getSubtarget();
}

MachineModuleInfoMachO &ARMMCInstLower::getMachOMMI() const {
  assert(getSubtarget().isTargetDarwin() &&"Can only get MachO info on darwin");
  return AsmPrinter.MMI->getObjFileInfo<MachineModuleInfoMachO>(); 
}
#endif


void ARMMCInstLower::Lower(const MachineInstr *MI, MCInst &OutMI) const {
  OutMI.setOpcode(MI->getOpcode());
  
  for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
    const MachineOperand &MO = MI->getOperand(i);
    
    MCOperand MCOp;
    switch (MO.getType()) {
    default:
      MI->dump();
      assert(0 && "unknown operand type");
    case MachineOperand::MO_Register:
      MCOp = MCOperand::CreateReg(MO.getReg());
      break;
    case MachineOperand::MO_Immediate:
      MCOp = MCOperand::CreateImm(MO.getImm());
      break;
#if 0
    case MachineOperand::MO_MachineBasicBlock:
      MCOp = MCOperand::CreateExpr(MCSymbolRefExpr::Create(
                       AsmPrinter.GetMBBSymbol(MO.getMBB()->getNumber()), 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_JumpTableIndex:
      MCOp = LowerSymbolOperand(MO, GetJumpTableSymbol(MO));
      break;
    case MachineOperand::MO_ConstantPoolIndex:
      MCOp = LowerSymbolOperand(MO, GetConstantPoolIndexSymbol(MO));
      break;
#endif
    }
    
    OutMI.addOperand(MCOp);
  }
  
}