llvm/llvm/include/llvm/CodeGen/CostTable.h

//===-- CostTable.h - Instruction Cost Table handling -----------*- 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
/// Cost tables and simple lookup functions
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_COSTTABLE_H_
#define LLVM_CODEGEN_COSTTABLE_H_

#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/CodeGenTypes/MachineValueType.h"

namespace llvm {

/// Cost Table Entry
template <typename CostType>
struct CostTblEntryT { … };
CostTblEntry;

/// Find in cost table.
template <class CostType>
inline const CostTblEntryT<CostType> *
CostTableLookup(ArrayRef<CostTblEntryT<CostType>> Tbl, int ISD, MVT Ty) { … }

template <size_t N, class CostType>
inline const CostTblEntryT<CostType> *
CostTableLookup(const CostTblEntryT<CostType> (&Table)[N], int ISD, MVT Ty) { … }

/// Type Conversion Cost Table
template <typename CostType>
struct TypeConversionCostTblEntryT { … };
TypeConversionCostTblEntry;

/// Find in type conversion cost table.
template <class CostType>
inline const TypeConversionCostTblEntryT<CostType> *
ConvertCostTableLookup(ArrayRef<TypeConversionCostTblEntryT<CostType>> Tbl,
                       int ISD, MVT Dst, MVT Src) { … }

template <size_t N, class CostType>
inline const TypeConversionCostTblEntryT<CostType> *
ConvertCostTableLookup(const TypeConversionCostTblEntryT<CostType> (&Table)[N],
                       int ISD, MVT Dst, MVT Src) { … }

} // namespace llvm

#endif /* LLVM_CODEGEN_COSTTABLE_H_ */