IVGCVSW-3236 Extend Ref LSTM with layer normalization support

* Add descriptor values
* Update lstm queue descriptor validate function
* Update lstm workload
* Update isLstmSupported (Cl and Ref), LayerSupportBase, ILayerSupport
* Update lstm layer
* Add unit tests

Signed-off-by: Jan Eilers <jan.eilers@arm.com>
Change-Id: I932175d550facfb342325051eaa7bd2084ebdc18
Signed-off-by: Jan Eilers <jan.eilers@arm.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/src/backends/reference/RefLayerSupport.cpp b/src/backends/reference/RefLayerSupport.cpp
index b563badca5..3d260c5abd 100644
--- a/src/backends/reference/RefLayerSupport.cpp
+++ b/src/backends/reference/RefLayerSupport.cpp
@@ -861,7 +861,11 @@ bool RefLayerSupport::IsLstmSupported(const TensorInfo& input,
                                       const TensorInfo* projectionBias,
                                       const TensorInfo* cellToForgetWeights,
                                       const TensorInfo* cellToOutputWeights,
-                                      Optional<std::string&> reasonIfUnsupported) const
+                                      Optional<std::string&> reasonIfUnsupported,
+                                      const TensorInfo* inputLayerNormWeights,
+                                      const TensorInfo* forgetLayerNormWeights,
+                                      const TensorInfo* cellLayerNormWeights,
+                                      const TensorInfo* outputLayerNormWeights) const
 {
     ignore_unused(descriptor);
     ignore_unused(inputToForgetWeights);
@@ -881,6 +885,10 @@ bool RefLayerSupport::IsLstmSupported(const TensorInfo& input,
     ignore_unused(projectionBias);
     ignore_unused(cellToForgetWeights);
     ignore_unused(cellToOutputWeights);
+    ignore_unused(inputLayerNormWeights);
+    ignore_unused(forgetLayerNormWeights);
+    ignore_unused(cellLayerNormWeights);
+    ignore_unused(outputLayerNormWeights);
 
     bool supported = true;