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

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

📁 ..
📁 AsmParser
📁 Disassembler
📁 MCTargetDesc
📄 README.txt(3.94 KB)
📄 SystemZ.h(8.19 KB)
📄 SystemZ.td(2.86 KB)
📄 SystemZAsmPrinter.cpp(23.49 KB)
📄 SystemZAsmPrinter.h(1.88 KB)
📄 SystemZCallingConv.cpp(710 B)
📄 SystemZCallingConv.h(4.89 KB)
📄 SystemZCallingConv.td(6.99 KB)
📄 SystemZConstantPoolValue.cpp(1.78 KB)
📄 SystemZConstantPoolValue.h(1.75 KB)
📄 SystemZCopyPhysRegs.cpp(3.82 KB)
📄 SystemZElimCompare.cpp(26.21 KB)
📄 SystemZFeatures.td(12.3 KB)
📄 SystemZFrameLowering.cpp(29.88 KB)
📄 SystemZFrameLowering.h(3.02 KB)
📄 SystemZHazardRecognizer.cpp(14.75 KB)
📄 SystemZHazardRecognizer.h(5.86 KB)
📄 SystemZISelDAGToDAG.cpp(68.74 KB)
📄 SystemZISelLowering.cpp(321.22 KB)
📄 SystemZISelLowering.h(28.44 KB)
📄 SystemZInstrBuilder.h(1.63 KB)
📄 SystemZInstrDFP.td(9.3 KB)
📄 SystemZInstrFP.td(26.21 KB)
📄 SystemZInstrFormats.td(182.82 KB)
📄 SystemZInstrHFP.td(9.46 KB)
📄 SystemZInstrInfo.cpp(69.75 KB)
📄 SystemZInstrInfo.h(14.6 KB)
📄 SystemZInstrInfo.td(103.17 KB)
📄 SystemZInstrSystem.td(17.18 KB)
📄 SystemZInstrVector.td(84.36 KB)
📄 SystemZLDCleanup.cpp(4.91 KB)
📄 SystemZLongBranch.cpp(16.04 KB)
📄 SystemZMCInstLower.cpp(3.16 KB)
📄 SystemZMCInstLower.h(1.28 KB)
📄 SystemZMachineFunctionInfo.cpp(508 B)
📄 SystemZMachineFunctionInfo.h(3.77 KB)
📄 SystemZMachineScheduler.cpp(8.76 KB)
📄 SystemZMachineScheduler.h(5.05 KB)
📄 SystemZOperands.td(24.89 KB)
📄 SystemZOperators.td(48.97 KB)
📄 SystemZPatterns.td(8.52 KB)
📄 SystemZPostRewrite.cpp(10.33 KB)
📄 SystemZProcessors.td(1.78 KB)
📄 SystemZRegisterInfo.cpp(16.27 KB)
📄 SystemZRegisterInfo.h(3.52 KB)
📄 SystemZRegisterInfo.td(12.04 KB)
📄 SystemZSchedule.td(2.1 KB)
📄 SystemZScheduleZ13.td(72.43 KB)
📄 SystemZScheduleZ14.td(78.06 KB)
📄 SystemZScheduleZ15.td(80.69 KB)
📄 SystemZScheduleZ196.td(55.68 KB)
📄 SystemZScheduleZEC12.td(57.44 KB)
📄 SystemZSelectionDAGInfo.cpp(12.92 KB)
📄 SystemZSelectionDAGInfo.h(3.15 KB)
📄 SystemZShortenInst.cpp(12 KB)
📄 SystemZSubtarget.cpp(3.67 KB)
📄 SystemZSubtarget.h(9.14 KB)
📄 SystemZTDC.cpp(13.52 KB)
📄 SystemZTargetMachine.cpp(11.58 KB)
📄 SystemZTargetMachine.h(2.09 KB)
📄 SystemZTargetTransformInfo.cpp(43.51 KB)
📄 SystemZTargetTransformInfo.h(4.88 KB)
📁 TargetInfo

Editing: SystemZMCInstLower.cpp

//===-- SystemZMCInstLower.cpp - Lower 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
//
//===----------------------------------------------------------------------===//

#include "SystemZMCInstLower.h"
#include "SystemZAsmPrinter.h"
#include "llvm/IR/Mangler.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCStreamer.h"

using namespace llvm;

// Return the VK_* enumeration for MachineOperand target flags Flags.
static MCSymbolRefExpr::VariantKind getVariantKind(unsigned Flags) {
  switch (Flags & SystemZII::MO_SYMBOL_MODIFIER) {
    case 0:
      return MCSymbolRefExpr::VK_None;
    case SystemZII::MO_GOT:
      return MCSymbolRefExpr::VK_GOT;
    case SystemZII::MO_INDNTPOFF:
      return MCSymbolRefExpr::VK_INDNTPOFF;
  }
  llvm_unreachable("Unrecognised MO_ACCESS_MODEL");
}

SystemZMCInstLower::SystemZMCInstLower(MCContext &ctx,
                                       SystemZAsmPrinter &asmprinter)
  : Ctx(ctx), AsmPrinter(asmprinter) {}

const MCExpr *
SystemZMCInstLower::getExpr(const MachineOperand &MO,
                            MCSymbolRefExpr::VariantKind Kind) const {
  const MCSymbol *Symbol;
  bool HasOffset = true;
  switch (MO.getType()) {
  case MachineOperand::MO_MachineBasicBlock:
    Symbol = MO.getMBB()->getSymbol();
    HasOffset = false;
    break;

case MachineOperand::MO_GlobalAddress:
    Symbol = AsmPrinter.getSymbol(MO.getGlobal());
    break;

case MachineOperand::MO_ExternalSymbol:
    Symbol = AsmPrinter.GetExternalSymbolSymbol(MO.getSymbolName());
    break;

case MachineOperand::MO_JumpTableIndex:
    Symbol = AsmPrinter.GetJTISymbol(MO.getIndex());
    HasOffset = false;
    break;

case MachineOperand::MO_ConstantPoolIndex:
    Symbol = AsmPrinter.GetCPISymbol(MO.getIndex());
    break;

case MachineOperand::MO_BlockAddress:
    Symbol = AsmPrinter.GetBlockAddressSymbol(MO.getBlockAddress());
    break;

default:
    llvm_unreachable("unknown operand type");
  }
  const MCExpr *Expr = MCSymbolRefExpr::create(Symbol, Kind, Ctx);
  if (HasOffset)
    if (int64_t Offset = MO.getOffset()) {
      const MCExpr *OffsetExpr = MCConstantExpr::create(Offset, Ctx);
      Expr = MCBinaryExpr::createAdd(Expr, OffsetExpr, Ctx);
    }
  return Expr;
}

MCOperand SystemZMCInstLower::lowerOperand(const MachineOperand &MO) const {
  switch (MO.getType()) {
  case MachineOperand::MO_Register:
    return MCOperand::createReg(MO.getReg());

case MachineOperand::MO_Immediate:
    return MCOperand::createImm(MO.getImm());

default: {
    MCSymbolRefExpr::VariantKind Kind = getVariantKind(MO.getTargetFlags());
    return MCOperand::createExpr(getExpr(MO, Kind));
  }
  }
}

void SystemZMCInstLower::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);
    // Ignore all implicit register operands.
    if (!MO.isReg() || !MO.isImplicit())
      OutMI.addOperand(lowerOperand(MO));
  }
}

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Editing: SystemZMCInstLower.cpp

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