third_party/llvm-10.0/llvm/lib/Target/VE/VETargetTransformInfo.h

//===- VETargetTransformInfo.h - VE 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
/// VE 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_VE_VETARGETTRANSFORMINFO_H
#define LLVM_LIB_TARGET_VE_VETARGETTRANSFORMINFO_H

#include "VE.h"
#include "VETargetMachine.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/BasicTTIImpl.h"

namespace llvm {

class VETTIImpl : public BasicTTIImplBase<VETTIImpl> {
  using BaseT = BasicTTIImplBase<VETTIImpl>;
  friend BaseT;

  const VESubtarget *ST;
  const VETargetLowering *TLI;

  const VESubtarget *getST() const { return ST; }
  const VETargetLowering *getTLI() const { return TLI; }

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

  unsigned getNumberOfRegisters(unsigned ClassID) const { return 64; }

  unsigned getRegisterBitWidth(bool Vector) const { return 64; }

  unsigned getMinVectorRegisterBitWidth() const { return 64; }
};

} // namespace llvm

#endif // LLVM_LIB_TARGET_VE_VETARGETTRANSFORMINFO_H