Method ConstructErrorMessageForUnconnectedInputs

src/armnn/Graph.cpp:684–731

Throws exception due to a layer input not being connected to an output slot. Verifies weights and bias are set for layers on input slots 1 and 2 respectively. Method checks if bias is enabled before ensuring it is set. @param layer constant pointer to a Layer object @param slotIndex input slot index of layer @throws LayerValidationException

/// @param slotIndex input slot index of layer
/// @throws LayerValidationException
void Graph::ConstructErrorMessageForUnconnectedInputs(Layer* const layer,
                                                      unsigned int slotIndex)
{
    std::ostringstream message;
    bool noWeightsAndBias = false;

    if ((layer->GetType() == armnn::LayerType::FullyConnected ||
         layer->GetType() == armnn::LayerType::Convolution2d  ||
         layer->GetType() == armnn::LayerType::Convolution3d  ||
         layer->GetType() == armnn::LayerType::DepthwiseConvolution2d) && slotIndex > 0)
    {
        message << std::endl;

        // If weights are not set and is bias enabled, also check if bias is set
        if (slotIndex == 1 && layer->GetNumInputSlots() == 3)
        {
            const IOutputSlot* biasSource = layer->GetInputSlot(2).GetConnectedOutputSlot();
            if (biasSource == NULL)
            {
                message << "Weights and bias layers not set." << std::endl;
                noWeightsAndBias = true;
            }
        }

        // Only weights or bias are not set
        if (!noWeightsAndBias)
        {
            if (slotIndex == 1)
            {
                message << "Weights layer not set." << std::endl;
            }
            else
            {
                message << "Bias layer not set." << std::endl;
            }
        }
    }

    std::string slotString = noWeightsAndBias ? "1 & 2" : std::to_string(slotIndex);
    message << "Input slot(s) "
            << slotString
            << " for "
            << GetLayerTypeAsCString(layer->GetType())
            << " not connected to an output slot. " << std::endl
            << "Layer name: "
            << std::quoted(layer->GetName());
    throw LayerValidationException(message.str());
}

const std::shared_ptr<IProfiler>& Graph::GetProfiler() const
{