diff options
| -rw-r--r-- | src/armnn/layers/ConcatLayer.cpp | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/armnn/layers/ConcatLayer.cpp b/src/armnn/layers/ConcatLayer.cpp index 24051a24d2..bab999d3b5 100644 --- a/src/armnn/layers/ConcatLayer.cpp +++ b/src/armnn/layers/ConcatLayer.cpp @@ -68,9 +68,17 @@ void ConcatLayer::CreateTensors(const FactoryType& factory) auto CreateSubTensor = [&]() { - // Make sure quantization parameters are in the same space - if (parentInfo.IsTypeSpaceMatch(info) && - factoryId == slot->GetTensorHandleFactoryId()) + // Make sure: + // 1) quantization parameters are in the same space + // 2) the same TensorHandleFactory is used for input and Concat layer output + // 3) the input does not come from a Constant layer or input layer + // 4) the input is only read by this concat layer + if (slot && + parentInfo.IsTypeSpaceMatch(info) && //(1) + factoryId == slot->GetTensorHandleFactoryId() && //(2) + slot->GetOwningLayer().GetType() != LayerType::Constant && //(3) + slot->GetOwningLayer().GetType() != LayerType::Input && //(3) + slot->GetNumConnections() == 1) //(4) { return factory.CreateSubTensorHandle(*parentTensor, info.GetShape(), @@ -93,7 +101,7 @@ void ConcatLayer::CreateTensors(const FactoryType& factory) // Ensure that ALL inputs can be substituted with valid sub-tensors if (subTensors.size() < numInputSlots) { - continue; // Don't optimize this Merge layer with sub-tensors + continue; // Don't optimize this Concat layer with sub-tensors } // Substitute input tensors with sub-tensors by replacing the output tensors on the connected layers. |