File Manager

003 File Manager

Current Path: /usr/src/contrib/llvm-project/llvm/lib/Target/XCore

usr / src / contrib / llvm-project / llvm / lib / Target / XCore /

📁 ..
📁 Disassembler
📁 MCTargetDesc
📁 TargetInfo
📄 XCore.h(1.13 KB)
📄 XCore.td(1.7 KB)
📄 XCoreAsmPrinter.cpp(10.24 KB)
📄 XCoreCallingConv.td(1.62 KB)
📄 XCoreFrameLowering.cpp(24.02 KB)
📄 XCoreFrameLowering.h(2.35 KB)
📄 XCoreFrameToArgsOffsetElim.cpp(2.27 KB)
📄 XCoreISelDAGToDAG.cpp(10.31 KB)
📄 XCoreISelLowering.cpp(75.02 KB)
📄 XCoreISelLowering.h(8.8 KB)
📄 XCoreInstrFormats.td(8.66 KB)
📄 XCoreInstrInfo.cpp(15.16 KB)
📄 XCoreInstrInfo.h(4.02 KB)
📄 XCoreInstrInfo.td(50.2 KB)
📄 XCoreLowerThreadLocal.cpp(8.17 KB)
📄 XCoreMCInstLower.cpp(3.79 KB)
📄 XCoreMCInstLower.h(1.24 KB)
📄 XCoreMachineFunctionInfo.cpp(2.93 KB)
📄 XCoreMachineFunctionInfo.h(2.89 KB)
📄 XCoreRegisterInfo.cpp(10.28 KB)
📄 XCoreRegisterInfo.h(1.59 KB)
📄 XCoreRegisterInfo.td(1.88 KB)
📄 XCoreSelectionDAGInfo.cpp(2.03 KB)
📄 XCoreSelectionDAGInfo.h(1.18 KB)
📄 XCoreSubtarget.cpp(1.07 KB)
📄 XCoreSubtarget.h(2.1 KB)
📄 XCoreTargetMachine.cpp(3.53 KB)
📄 XCoreTargetMachine.h(1.81 KB)
📄 XCoreTargetObjectFile.cpp(6.47 KB)
📄 XCoreTargetObjectFile.h(1.42 KB)
📄 XCoreTargetStreamer.h(887 B)
📄 XCoreTargetTransformInfo.h(1.76 KB)

Editing: XCoreMCInstLower.cpp

//===-- XCoreMCInstLower.cpp - Convert XCore MachineInstr to MCInst -------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file contains code to lower XCore MachineInstrs to their
/// corresponding MCInst records.
///
//===----------------------------------------------------------------------===//
#include "XCoreMCInstLower.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/IR/Mangler.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"

using namespace llvm;

XCoreMCInstLower::XCoreMCInstLower(class AsmPrinter &asmprinter)
    : Printer(asmprinter) {}

void XCoreMCInstLower::Initialize(MCContext *C) { Ctx = C; }

MCOperand XCoreMCInstLower::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 = Printer.getSymbol(MO.getGlobal());
      Offset += MO.getOffset();
      break;
    case MachineOperand::MO_BlockAddress:
      Symbol = Printer.GetBlockAddressSymbol(MO.getBlockAddress());
      Offset += MO.getOffset();
      break;
    case MachineOperand::MO_ExternalSymbol:
      Symbol = Printer.GetExternalSymbolSymbol(MO.getSymbolName());
      Offset += MO.getOffset();
      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 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);
}

MCOperand XCoreMCInstLower::LowerOperand(const MachineOperand &MO,
                                         unsigned offset) const {
  MachineOperandType MOTy = MO.getType();

switch (MOTy) {
    default: llvm_unreachable("unknown operand type");
    case MachineOperand::MO_Register:
      // Ignore all implicit register operands.
      if (MO.isImplicit()) break;
      return MCOperand::createReg(MO.getReg());
    case MachineOperand::MO_Immediate:
      return MCOperand::createImm(MO.getImm() + offset);
    case MachineOperand::MO_MachineBasicBlock:
    case MachineOperand::MO_GlobalAddress:
    case MachineOperand::MO_ExternalSymbol:
    case MachineOperand::MO_JumpTableIndex:
    case MachineOperand::MO_ConstantPoolIndex:
    case MachineOperand::MO_BlockAddress:
      return LowerSymbolOperand(MO, MOTy, offset);
    case MachineOperand::MO_RegisterMask:
      break;
  }

return MCOperand();
}

void XCoreMCInstLower::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 = LowerOperand(MO);

if (MCOp.isValid())
      OutMI.addOperand(MCOp);
  }
}

003 File Manager

Editing: XCoreMCInstLower.cpp

Upload File

Create Folder