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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include "LayerWithParameters.hpp"
namespace armnn
{
class ScopedCpuTensorHandle;
struct LstmOptCifgParameters
{
std::unique_ptr<ScopedCpuTensorHandle> m_InputToInputWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_RecurrentToInputWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_CellToInputWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_InputGateBias;
};
struct LstmOptProjectionParameters
{
std::unique_ptr<ScopedCpuTensorHandle> m_ProjectionWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_ProjectionBias;
};
struct LstmOptPeepholeParameters
{
std::unique_ptr<ScopedCpuTensorHandle> m_CellToForgetWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_CellToOutputWeights;
};
struct LstmBasicParameters
{
std::unique_ptr<ScopedCpuTensorHandle> m_InputToForgetWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_InputToCellWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_InputToOutputWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_RecurrentToForgetWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_RecurrentToCellWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_RecurrentToOutputWeights;
std::unique_ptr<ScopedCpuTensorHandle> m_ForgetGateBias;
std::unique_ptr<ScopedCpuTensorHandle> m_CellBias;
std::unique_ptr<ScopedCpuTensorHandle> m_OutputGateBias;
};
class LstmLayer : public LayerWithParameters<LstmDescriptor>
{
public:
LstmBasicParameters m_BasicParameters;
LstmOptCifgParameters m_CifgParameters;
LstmOptProjectionParameters m_ProjectionParameters;
LstmOptPeepholeParameters m_PeepholeParameters;
virtual std::unique_ptr<IWorkload> CreateWorkload(const Graph& graph,
const IWorkloadFactory& factory) const override;
LstmLayer* Clone(Graph& graph) const override;
void ValidateTensorShapesFromInputs() override;
std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override;
protected:
LstmLayer(const LstmDescriptor& param, const char* name);
~LstmLayer() = default;
Layer::ConstantTensors GetConstantTensorsByRef() override;
};
} // namespace
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