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//===- LoongArchTargetTransformInfo.h - LoongArch 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
//
//===----------------------------------------------------------------------===//
/// \file
/// This file a TargetTransformInfo::Concept conforming object specific to the
/// LoongArch 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_LOONGARCH_LOONGARCHTARGETTRANSFORMINFO_H
#define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHTARGETTRANSFORMINFO_H
#include "LoongArchSubtarget.h"
#include "LoongArchTargetMachine.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/BasicTTIImpl.h"
namespace llvm {
class LoongArchTTIImpl : public BasicTTIImplBase<LoongArchTTIImpl> {
typedef BasicTTIImplBase<LoongArchTTIImpl> BaseT;
typedef TargetTransformInfo TTI;
friend BaseT;
enum LoongArchRegisterClass { GPRRC, FPRRC, VRRC };
const LoongArchSubtarget *ST;
const LoongArchTargetLowering *TLI;
const LoongArchSubtarget *getST() const { return ST; }
const LoongArchTargetLowering *getTLI() const { return TLI; }
public:
explicit LoongArchTTIImpl(const LoongArchTargetMachine *TM, const Function &F)
: BaseT(TM, F.getDataLayout()), ST(TM->getSubtargetImpl(F)),
TLI(ST->getTargetLowering()) {}
TypeSize getRegisterBitWidth(TargetTransformInfo::RegisterKind K) const;
unsigned getNumberOfRegisters(unsigned ClassID) const;
unsigned getRegisterClassForType(bool Vector, Type *Ty = nullptr) const;
unsigned getMaxInterleaveFactor(ElementCount VF);
const char *getRegisterClassName(unsigned ClassID) const;
TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
unsigned getCacheLineSize() const override;
unsigned getPrefetchDistance() const override;
bool enableWritePrefetching() const override;
// TODO: Implement more hooks to provide TTI machinery for LoongArch.
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHTARGETTRANSFORMINFO_H
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