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//
// Copyright © 2017-2023 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include "FullyConnectedLayer.hpp"
#include "LayerCloneBase.hpp"
#include <armnn/TypesUtils.hpp>
#include <armnn/backends/TensorHandle.hpp>
#include <armnn/backends/WorkloadData.hpp>
#include <armnn/backends/WorkloadFactory.hpp>
namespace armnn
{
FullyConnectedLayer::FullyConnectedLayer(const FullyConnectedDescriptor& param, const char* name)
: LayerWithParameters(param.GetNumInputs(), 1, LayerType::FullyConnected, param, name)
{
}
std::unique_ptr<IWorkload> FullyConnectedLayer::CreateWorkload(const IWorkloadFactory& factory) const
{
FullyConnectedQueueDescriptor descriptor;
SetAdditionalInfo(descriptor);
return factory.CreateWorkload(LayerType::FullyConnected, descriptor, PrepInfoAndDesc(descriptor));
}
FullyConnectedLayer* FullyConnectedLayer::Clone(Graph& graph) const
{
auto layer = CloneBase<FullyConnectedLayer>(graph, m_Param, GetName());
return std::move(layer);
}
std::vector<TensorShape> FullyConnectedLayer::InferOutputShapes(const std::vector<TensorShape>& inputShapes) const
{
ARMNN_ASSERT(inputShapes.size() == 2);
const TensorShape& inputShape = inputShapes[0];
const TensorShape weightShape = inputShapes[1];
// Output for FC is [1, w[1]].
unsigned int batches = inputShape[0];
unsigned int dimIdx = m_Param.m_TransposeWeightMatrix ? 0 : 1;
return std::vector<TensorShape>({ TensorShape({batches, weightShape[dimIdx]})});
}
void FullyConnectedLayer::ValidateTensorShapesFromInputs()
{
const TensorShape& outputShape = GetOutputSlot(0).GetTensorInfo().GetShape();
VerifyShapeInferenceType(outputShape, m_ShapeInferenceMethod);
std::vector<TensorShape> inferredShapes = InferOutputShapes(
{GetInputSlot(0).GetTensorInfo().GetShape(),
GetInputSlot(1).GetTensorInfo().GetShape()});
ARMNN_ASSERT(inferredShapes.size() == 1);
ARMNN_ASSERT(inferredShapes[0].GetDimensionality() == Dimensionality::Specified);
ValidateAndCopyShape(outputShape, inferredShapes[0], m_ShapeInferenceMethod, "FullyConnectedLayer");
}
Layer::ImmutableConstantTensors FullyConnectedLayer::GetConstantTensorsByRef() const
{
Layer::ImmutableConstantTensors tensors = GetConnectedConstantAsInputTensors();
return tensors;
}
void FullyConnectedLayer::ExecuteStrategy(IStrategy& strategy) const
{
strategy.ExecuteStrategy(this, GetParameters(), {}, GetName());
}
} // namespace armnn
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