IVGCVSW-4549 Add front end for new QLSTM layer

* Added new layer QLstm (Android R HAL 1.3)
* Made necessary updates to APIs
* Added unit tests
* This layer is functionally equivalent to the
  original unquantized LSTM layer with some
  additonal quantization features added. Due
  to this, original LstmParams are used for
  this layer.

Signed-off-by: James Conroy <james.conroy@arm.com>
Change-Id: I5b7f2d2fb6e17e81573b41a31bc55f49ae79608f

1 files changed, 10 insertions, 0 deletions

diff --git a/include/armnn/ILayerVisitor.hpp b/include/armnn/ILayerVisitor.hpp
index 972915dc0f..530e74f30a 100644
--- a/include/armnn/ILayerVisitor.hpp
+++ b/include/armnn/ILayerVisitor.hpp
@@ -360,6 +360,16 @@ public:
     virtual void VisitQuantizeLayer(const IConnectableLayer* layer,
                                     const char* name = nullptr) = 0;
 
+    /// Function a QLstm layer should call back to when its Accept(ILayerVisitor&) function is invoked.
+    /// @param layer - pointer to the layer which is calling back to this visit function.
+    /// @param descriptor - Parameters controlling the operation of the QLstm operation.
+    /// @param params - The weights and biases for the layer
+    /// @param name - Optional name for the layer.
+    virtual void VisitQLstmLayer(const IConnectableLayer* layer,
+                                 const QLstmDescriptor& descriptor,
+                                 const LstmInputParams& params,
+                                 const char* name = nullptr) = 0;
+
     /// Function a QuantizedLstm layer should call back to when its Accept(ILayerVisitor&) function is invoked.
     /// @param layer - pointer to the layer which is calling back to this visit function.
     /// @param params - The weights and biases for the Quantized LSTM cell