File Manager

003 File Manager

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

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

📁 ..
📁 AsmParser
📁 Disassembler
📄 Lanai.h(1.4 KB)
📄 Lanai.td(1.71 KB)
📄 LanaiAluCode.h(3.55 KB)
📄 LanaiAsmPrinter.cpp(8.15 KB)
📄 LanaiCallingConv.td(1.76 KB)
📄 LanaiCondCode.h(2.9 KB)
📄 LanaiDelaySlotFiller.cpp(8.89 KB)
📄 LanaiFrameLowering.cpp(8 KB)
📄 LanaiFrameLowering.h(1.91 KB)
📄 LanaiISelDAGToDAG.cpp(11.67 KB)
📄 LanaiISelLowering.cpp(55.19 KB)
📄 LanaiISelLowering.h(5.99 KB)
📄 LanaiInstrFormats.td(20.83 KB)
📄 LanaiInstrInfo.cpp(27.4 KB)
📄 LanaiInstrInfo.h(7.02 KB)
📄 LanaiInstrInfo.td(30.89 KB)
📄 LanaiMCInstLower.cpp(4.52 KB)
📄 LanaiMCInstLower.h(1.43 KB)
📄 LanaiMachineFunctionInfo.cpp(469 B)
📄 LanaiMachineFunctionInfo.h(1.95 KB)
📄 LanaiMemAluCombiner.cpp(13.52 KB)
📄 LanaiRegisterInfo.cpp(8.54 KB)
📄 LanaiRegisterInfo.h(1.78 KB)
📄 LanaiRegisterInfo.td(2.2 KB)
📄 LanaiSchedule.td(2.25 KB)
📄 LanaiSelectionDAGInfo.cpp(1.1 KB)
📄 LanaiSelectionDAGInfo.h(1.32 KB)
📄 LanaiSubtarget.cpp(1.66 KB)
📄 LanaiSubtarget.h(2.44 KB)
📄 LanaiTargetMachine.cpp(3.92 KB)
📄 LanaiTargetMachine.h(1.9 KB)
📄 LanaiTargetObjectFile.cpp(4.8 KB)
📄 LanaiTargetObjectFile.h(1.78 KB)
📄 LanaiTargetTransformInfo.h(4.2 KB)
📁 MCTargetDesc
📁 TargetInfo

Editing: LanaiTargetTransformInfo.h

//===-- LanaiTargetTransformInfo.h - Lanai specific TTI ---------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file a TargetTransformInfo::Concept conforming object specific to the
// Lanai target machine. It uses the target's detailed information to
// provide more precise answers to certain TTI queries, while letting the
// target independent and default TTI implementations handle the rest.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_LANAI_LANAITARGETTRANSFORMINFO_H
#define LLVM_LIB_TARGET_LANAI_LANAITARGETTRANSFORMINFO_H

#include "Lanai.h"
#include "LanaiSubtarget.h"
#include "LanaiTargetMachine.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/BasicTTIImpl.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/Support/MathExtras.h"

namespace llvm {
class LanaiTTIImpl : public BasicTTIImplBase<LanaiTTIImpl> {
  typedef BasicTTIImplBase<LanaiTTIImpl> BaseT;
  typedef TargetTransformInfo TTI;
  friend BaseT;

const LanaiSubtarget *ST;
  const LanaiTargetLowering *TLI;

const LanaiSubtarget *getST() const { return ST; }
  const LanaiTargetLowering *getTLI() const { return TLI; }

public:
  explicit LanaiTTIImpl(const LanaiTargetMachine *TM, const Function &F)
      : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
        TLI(ST->getTargetLowering()) {}

bool shouldBuildLookupTables() const { return false; }

TargetTransformInfo::PopcntSupportKind getPopcntSupport(unsigned TyWidth) {
    if (TyWidth == 32)
      return TTI::PSK_FastHardware;
    return TTI::PSK_Software;
  }

int getIntImmCost(const APInt &Imm, Type *Ty, TTI::TargetCostKind CostKind) {
    assert(Ty->isIntegerTy());
    if (Imm == 0)
      return TTI::TCC_Free;
    if (isInt<16>(Imm.getSExtValue()))
      return TTI::TCC_Basic;
    if (isInt<21>(Imm.getZExtValue()))
      return TTI::TCC_Basic;
    if (isInt<32>(Imm.getSExtValue())) {
      if ((Imm.getSExtValue() & 0xFFFF) == 0)
        return TTI::TCC_Basic;
      return 2 * TTI::TCC_Basic;
    }

return 4 * TTI::TCC_Basic;
  }

int getIntImmCostInst(unsigned Opc, unsigned Idx, const APInt &Imm, Type *Ty,
                        TTI::TargetCostKind CostKind) {
    return getIntImmCost(Imm, Ty, CostKind);
  }

int getIntImmCostIntrin(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
                          Type *Ty, TTI::TargetCostKind CostKind) {
    return getIntImmCost(Imm, Ty, CostKind);
  }

unsigned getArithmeticInstrCost(
      unsigned Opcode, Type *Ty,
      TTI::TargetCostKind CostKind = TTI::TCK_RecipThroughput,
      TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
      TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
      TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
      TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None,
      ArrayRef<const Value *> Args = ArrayRef<const Value *>(),
      const Instruction *CxtI = nullptr) {
    int ISD = TLI->InstructionOpcodeToISD(Opcode);

switch (ISD) {
    default:
      return BaseT::getArithmeticInstrCost(Opcode, Ty, CostKind, Opd1Info,
                                           Opd2Info,
                                           Opd1PropInfo, Opd2PropInfo);
    case ISD::MUL:
    case ISD::SDIV:
    case ISD::UDIV:
    case ISD::UREM:
      // This increases the cost associated with multiplication and division
      // to 64 times what the baseline arithmetic cost is. The arithmetic
      // instruction cost was arbitrarily chosen to reduce the desirability
      // of emitting arithmetic instructions that are emulated in software.
      // TODO: Investigate the performance impact given specialized lowerings.
      return 64 * BaseT::getArithmeticInstrCost(Opcode, Ty, CostKind, Opd1Info,
                                                Opd2Info,
                                                Opd1PropInfo, Opd2PropInfo);
    }
  }
};

} // end namespace llvm

#endif // LLVM_LIB_TARGET_LANAI_LANAITARGETTRANSFORMINFO_H

003 File Manager

Editing: LanaiTargetTransformInfo.h

Upload File

Create Folder