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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __LOCO_IR_DATA_TYPE_TRAITS_H__
#define __LOCO_IR_DATA_TYPE_TRAITS_H__
#include "loco/IR/DataType.h"
#include <cassert>
#include <cstdint>
namespace loco
{
/**
* @brief C++ scalar type corresponding to each DataType
*/
template <DataType DT> struct DataTypeImpl
{
// using Type = ...
};
// TODO Support other enum values
template <> struct DataTypeImpl<DataType::S8>
{
// Use C++ int8_t type for 8bit integer
using Type = int8_t;
};
template <> struct DataTypeImpl<DataType::U8>
{
// Use C++ uint8_t type for unsigned 8bit integer
using Type = uint8_t;
};
template <> struct DataTypeImpl<DataType::S32>
{
// Use C++ int32_t type for 32bit integer
using Type = int32_t;
};
template <> struct DataTypeImpl<DataType::FLOAT32>
{
// Use C++ float type for IEEE 32-bit floating-point numbers
using Type = float;
};
/**
* @brief Returns the size of the data type.
* @note If you need the size at compile time, use `sizeof(typename DataTypeImpl<DT>::Type)`.
*/
inline uint32_t size(DataType data_type)
{
switch (data_type)
{
case DataType::S8:
return sizeof(DataTypeImpl<DataType::S8>::Type);
case DataType::U8:
return sizeof(DataTypeImpl<DataType::U8>::Type);
case DataType::S32:
return sizeof(DataTypeImpl<DataType::S32>::Type);
case DataType::FLOAT32:
return sizeof(DataTypeImpl<DataType::FLOAT32>::Type);
default:
// TODO Support remaining data types.
assert(false);
return UINT32_MAX; // Avoid compiler warning.
}
}
} // namespace loco
#endif // __LOCO_IR_DATA_TYPE_TRAITS_H__
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