IVGCVSW-7501 Allow constant tensors as inputs for input data in the delegate

 In the TLCT tests we were failing many tests because they used
 constant tensors as data input for the layers. We had the functionality
 in place but we didnt have it spread across the visit functions.

 * Check if inputs are constant tensors and attempt to assign them
   to input slot of layers.
 * Add missing checks to some functions that return a kTfLiteStatus
   so we can see if they fail
 * Clean up CreateConstTensor function

Signed-off-by: Ryan OShea <ryan.oshea3@arm.com>
Change-Id: I8610b770aea56932a98f91c961d59b3de47c2ab5

1 files changed, 13 insertions, 1 deletions

diff --git a/delegate/src/Redefine.hpp b/delegate/src/Redefine.hpp
index 8f9a4e4ba0..864fb7af67 100644
--- a/delegate/src/Redefine.hpp
+++ b/delegate/src/Redefine.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// Copyright © 2022-2023 Arm Ltd and Contributors. All rights reserved.
 // SPDX-License-Identifier: MIT
 //
 
@@ -74,6 +74,12 @@ TfLiteStatus VisitCastOperator(DelegateData& delegateData,
     armnn::IOutputSlot& outputSlot = layer->GetOutputSlot(0);
     outputSlot.SetTensorInfo(outputTensorInfo);
 
+    // try to connect the Constant Inputs if there are any
+    if(ProcessInputs(layer,delegateData, tfLiteContext, tfLiteNode) != kTfLiteOk )
+    {
+        return kTfLiteError;
+    }
+
     // Connect
     return Connect(layer, tfLiteNode, delegateData);
 }
@@ -240,6 +246,12 @@ TfLiteStatus VisitReshapeOperator(DelegateData& delegateData,
     armnn::IOutputSlot& outputSlot = layer->GetOutputSlot(0);
     outputSlot.SetTensorInfo(outputTensorInfo);
 
+    // try to connect the Constant Inputs if there are any
+    if(ProcessInputs(layer,delegateData, tfLiteContext, tfLiteNode) != kTfLiteOk )
+    {
+        return kTfLiteError;
+    }
+
     // Connect
     return Connect(layer, tfLiteNode, delegateData);
 }