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/*
* Copyright (c) 2018 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 __COCO_IR_INSTR_INDEX_H__
#define __COCO_IR_INSTR_INDEX_H__
#include <cstdint>
namespace coco
{
/**
* @brief A InstrIndex denotes the index of an instruction in an instruction list
*/
class InstrIndex final
{
private:
static const uint32_t undefined = 0xffffffff;
public:
InstrIndex() : _value{undefined}
{
// DO NOTHING
}
public:
InstrIndex(uint32_t value) { set(value); }
public:
bool valid(void) const { return _value != undefined; }
public:
uint32_t value(void) const { return _value; }
public:
void set(uint32_t value);
void reset(void) { _value = undefined; }
private:
uint32_t _value;
};
static inline bool operator<(const InstrIndex &lhs, const InstrIndex &rhs)
{
return lhs.value() < rhs.value();
}
} // namespace coco
#endif // __COCO_IR_INSTR_INDEX_H__
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