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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 __NEURUN_IR_OPERATION_LSTM_H__
#define __NEURUN_IR_OPERATION_LSTM_H__
#include "ir/InternalType.h"
#include "ir/Operation.h"
namespace neurun
{
namespace ir
{
namespace operation
{
class LSTM : public Operation
{
public:
enum Input
{
INPUT = 0,
INPUT_TO_INPUT_WEIGHTS = 1,
INPUT_TO_FORGET_WEIGHTS = 2,
INPUT_TO_CELL_WEIGHTS = 3,
INPUT_TO_OUTPUT_WEIGHTS = 4,
RECURRENT_TO_INPUT_WEIGHTS = 5,
RECURRENT_TO_FORGET_WEIGHTS = 6,
RECURRENT_TO_CELL_WEIGHTS = 7,
RECURRENT_TO_OUTPUT_WEIGHTS = 8,
CELL_TO_INPUT_WEIGHTS = 9,
CELL_TO_FORGET_WEIGHTS = 10,
CELL_TO_OUTPUT_WEIGHTS = 11,
INPUT_GATE_BIAS = 12,
FORGET_GATE_BIAS = 13,
CELL_BIAS = 14,
OUTPUT_GATE_BIAS = 15,
PROJECTION_WEIGHTS = 16,
PROJECTION_BIAS = 17,
OUTPUT_STATE_IN = 18,
CELL_STATE_IN = 19,
};
enum Output
{
SCRATCH_BUFFER = 0,
OUTPUT_STATE_OUT = 1,
CELL_STATE_OUT = 2,
OUTPUT = 3
};
struct Param
{
Activation activation;
float cell_threshold;
float projection_threshold;
};
public:
LSTM(const OperandIndexSequence &inputs, const OperandIndexSequence &outputs, const Param ¶m);
public:
void accept(OperationVisitor &v) const override;
OpCode opcode() const final { return OpCode::LSTM; }
public:
const Param ¶m() const { return _param; }
private:
Param _param;
};
} // namespace operation
} // namespace ir
} // namespace neurun
#endif // __NEURUN_IR_OPERATION_LSTM_H__
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