IVGCVSW-5614 Enable Hard Swish and Elu activations

 * Enabled Hard Swish and Elu in TfLiteDelegate
 * Added support for Elu in TfLiteParser

Signed-off-by: Matthew Sloyan <matthew.sloyan@arm.com>
Change-Id: If09321b58568a98e14cabce610a1586556da041e

1 files changed, 14 insertions, 10 deletions

diff --git a/delegate/src/Activation.hpp b/delegate/src/Activation.hpp
index b50854aca5..5f14e2c45c 100644
--- a/delegate/src/Activation.hpp
+++ b/delegate/src/Activation.hpp
@@ -49,21 +49,14 @@ TfLiteStatus VisitActivationOperator(DelegateData& delegateData,
 
     const TfLiteTensor* tfLiteTensors = tfLiteContext->tensors;
     const TfLiteTensor& tfLiteInputTensor = tfLiteTensors[tfLiteNode->inputs->data[0]];
-    if (IsDynamicTensor(tfLiteInputTensor))
+    if (!IsValid(tfLiteContext, tfLiteInputTensor, operatorCode, nodeIndex))
     {
-        TF_LITE_MAYBE_KERNEL_LOG(
-            tfLiteContext,
-            "TfLiteArmnnDelegate: Dynamic input tensors are not supported in node #%d: ",
-            nodeIndex);
         return kTfLiteError;
     }
+
     const TfLiteTensor& tfLiteOutputTensor = tfLiteTensors[tfLiteNode->outputs->data[0]];
-    if (IsDynamicTensor(tfLiteOutputTensor))
+    if (!IsValid(tfLiteContext, tfLiteOutputTensor, operatorCode, nodeIndex))
     {
-        TF_LITE_MAYBE_KERNEL_LOG(
-            tfLiteContext,
-            "TfLiteArmnnDelegate: Dynamic output tensors are not supported in node #%d: ",
-            nodeIndex);
         return kTfLiteError;
     }
 
@@ -96,6 +89,17 @@ TfLiteStatus VisitActivationOperator(DelegateData& delegateData,
             activationDesc.m_B = 1.0f;
             break;
         }
+        case kTfLiteBuiltinElu:
+        {
+            activationDesc.m_Function = armnn::ActivationFunction::Elu;
+            activationDesc.m_A = 1.0f;
+            break;
+        }
+        case kTfLiteBuiltinHardSwish:
+        {
+            activationDesc.m_Function = armnn::ActivationFunction::HardSwish;
+            break;
+        }
         default:
         {
             return kTfLiteError;