Method IsFullyConnectedSupported

src/armnn/BackendHelper.cpp:703–765

}

bool LayerSupportHandle::IsFullyConnectedSupported(const TensorInfo& input,
                                                   const TensorInfo& output,
                                                   const TensorInfo& weights,
                                                   const TensorInfo& biases,
                                                   const FullyConnectedDescriptor& descriptor,
                                                   Optional<std::string&> reasonIfUnsupported)
{
    TensorInfos infos{input, output, weights, biases};

    Optional<const BackendOptions::BackendOption> capability;
    if (!m_BackendId.IsUndefined())
    {
        capability = GetCapability("NonConstWeights", m_BackendId);
        if (!capability.has_value() || capability.value().GetValue().AsBool() == false)
        {
            if (!descriptor.m_ConstantWeights)
            {
                if (reasonIfUnsupported.has_value())
                {
                    reasonIfUnsupported.value() =
                            "Backend is not capable of supporting dynamic weights (NonConstWeights) and "
                            "FullyConnected descriptor indicates that weights are dynamic (non constant). ";
                }
                return false;
            }
            if (!weights.IsConstant())
            {
                if (reasonIfUnsupported.has_value())
                {
                    reasonIfUnsupported.value() =
                            "Backend is not capable of supporting dynamic weights (NonConstWeights) and "
                            "FullyConnected weights are set as dynamic (non constant). ";
                }

                return false;
            }
            if (descriptor.m_BiasEnabled && !biases.IsConstant())
            {
                if (reasonIfUnsupported.has_value())
                {
                    reasonIfUnsupported.value() =
                            "Backend is not capable of supporting dynamic biases (NonConstWeights) and "
                            "FullyConnected biases are set as dynamic (non constant). ";
                }
                return false;
            }

            // At the first stage we will only print a warning. this is to give
            // backend developers a chance to adopt and read weights from input slots.
            ARMNN_LOG(warning) << "The backend makes use of a deprecated interface to read constant tensors. "
                                  "If you are a backend developer please find more information in our "
                                  "doxygen documentation on github https://github.com/ARM-software/armnn "
                                  "under the keyword 'ConstTensorsAsInputs'.";
        }
    }

    return m_LayerSupport->IsLayerSupported(LayerType::FullyConnected,
                                            infos,