aboutsummaryrefslogtreecommitdiff
path: root/src/armnn/layers/QuantizedLstmLayer.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/armnn/layers/QuantizedLstmLayer.hpp')
-rw-r--r--src/armnn/layers/QuantizedLstmLayer.hpp87
1 files changed, 87 insertions, 0 deletions
diff --git a/src/armnn/layers/QuantizedLstmLayer.hpp b/src/armnn/layers/QuantizedLstmLayer.hpp
new file mode 100644
index 0000000000..4602f71114
--- /dev/null
+++ b/src/armnn/layers/QuantizedLstmLayer.hpp
@@ -0,0 +1,87 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include <Layer.hpp>
+
+namespace armnn
+{
+
+class ScopedCpuTensorHandle;
+
+struct QuantizedLstmParameters
+{
+ /// A unique pointer to represent 2D weights tensor with dimensions [outputSize, inputSize] (QAsymm8).
+ std::unique_ptr<ScopedCpuTensorHandle> m_InputToInputWeights;
+ /// A unique pointer to represent 2D weights tensor with dimensions [outputSize, inputSize] (QAsymm8).
+ std::unique_ptr<ScopedCpuTensorHandle> m_InputToForgetWeights;
+ /// A unique pointer to represent 2D weights tensor with dimensions [outputSize, inputSize] (QAsymm8).
+ std::unique_ptr<ScopedCpuTensorHandle> m_InputToCellWeights;
+ /// A unique pointer to represent 2D weights tensor with dimensions [outputSize, inputSize] (QAsymm8).
+ std::unique_ptr<ScopedCpuTensorHandle> m_InputToOutputWeights;
+
+ /// A unique pointer to represent 2D weights tensor with dimensions [outputSize, outputSize] (QAsymm8).
+ std::unique_ptr<ScopedCpuTensorHandle> m_RecurrentToInputWeights;
+ /// A unique pointer to represent 2D weights tensor with dimensions [outputSize, outputSize] (QAsymm8).
+ std::unique_ptr<ScopedCpuTensorHandle> m_RecurrentToForgetWeights;
+ /// A unique pointer to represent 2D weights tensor with dimensions [outputSize, outputSize] (QAsymm8).
+ std::unique_ptr<ScopedCpuTensorHandle> m_RecurrentToCellWeights;
+ /// A unique pointer to represent 2D weights tensor with dimensions [outputSize, outputSize] (QAsymm8).
+ std::unique_ptr<ScopedCpuTensorHandle> m_RecurrentToOutputWeights;
+
+ /// A unique pointer to represent 1D bias tensor with dimensions [outputSize] (int32).
+ std::unique_ptr<ScopedCpuTensorHandle> m_InputGateBias;
+ /// A unique pointer to represent 1D bias tensor with dimensions [outputSize] (int32).
+ std::unique_ptr<ScopedCpuTensorHandle> m_ForgetGateBias;
+ /// A unique pointer to represent 1D bias tensor with dimensions [outputSize] (int32).
+ std::unique_ptr<ScopedCpuTensorHandle> m_CellBias;
+ /// A unique pointer to represent 1D bias tensor with dimensions [outputSize] (int32).
+ std::unique_ptr<ScopedCpuTensorHandle> m_OutputGateBias;
+};
+
+/// This layer represents a QuantizedLstm operation.
+class QuantizedLstmLayer : public Layer
+{
+public:
+
+ QuantizedLstmParameters m_QuantizedLstmParameters;
+
+ /// Makes a workload for the QuantizedLstm type.
+ /// @param [in] graph The graph where this layer can be found.
+ /// @param [in] factory The workload factory which will create the workload.
+ /// @return A pointer to the created workload, or nullptr if not created.
+ virtual std::unique_ptr<IWorkload> CreateWorkload(const Graph& graph,
+ const IWorkloadFactory& factory) const override;
+
+ /// Creates a dynamically-allocated copy of this layer.
+ /// @param [in] graph The graph into which this layer is being cloned.
+ QuantizedLstmLayer* Clone(Graph& graph) const override;
+
+ /// Check if the input tensor shape(s)
+ /// will lead to a valid configuration of @ref QuantizedLstmLayer.
+ void ValidateTensorShapesFromInputs() override;
+
+ /// By default returns inputShapes if the number of inputs are equal to number of outputs,
+ /// otherwise infers the output shapes from given input shapes and layer properties.
+ /// @param [in] inputShapes The input shapes layer has.
+ /// @return A vector to the inferred output shape.
+ std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override;
+
+ void Accept(ILayerVisitor& visitor) const override;
+
+protected:
+ /// Constructor to create a QuantizedLstmLayer.
+ /// @param [in] name Optional name for the layer.
+ QuantizedLstmLayer(const char* name);
+
+ /// Default destructor
+ ~QuantizedLstmLayer() = default;
+
+ /// Retrieve the handles to the constant values stored by the layer.
+ /// @return A vector of the constant tensors stored by this layer.
+ Layer::ConstantTensors GetConstantTensorsByRef() override;
+};
+
+} // namespace armnn