1 files changed, 46 insertions, 1 deletions
diff --git a/src/armnnTfLiteParser/TfLiteParser.cpp b/src/armnnTfLiteParser/TfLiteParser.cpp
index 049d6049a7..3fd81ff973 100644
--- a/src/armnnTfLiteParser/TfLiteParser.cpp
+++ b/src/armnnTfLiteParser/TfLiteParser.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright © 2017-2023 Arm Ltd and Contributors. All rights reserved.
+// Copyright © 2017-2024 Arm Ltd and Contributors. All rights reserved.
 // SPDX-License-Identifier: MIT
 //
 
@@ -810,6 +810,7 @@ TfLiteParserImpl::TfLiteParserImpl(const Optional<ITfLiteParser::TfLiteParserOpt
     m_ParserFunctions[tflite::BuiltinOperator_RESIZE_NEAREST_NEIGHBOR] = &TfLiteParserImpl::ParseResizeNearestNeighbor;
     m_ParserFunctions[tflite::BuiltinOperator_REVERSE_V2]              = &TfLiteParserImpl::ParseReverseV2;
     m_ParserFunctions[tflite::BuiltinOperator_RSQRT]                   = &TfLiteParserImpl::ParseRsqrt;
+    m_ParserFunctions[tflite::BuiltinOperator_SCATTER_ND]              = &TfLiteParserImpl::ParseScatterNd;
     m_ParserFunctions[tflite::BuiltinOperator_SQRT]                    = &TfLiteParserImpl::ParseSqrt;
     m_ParserFunctions[tflite::BuiltinOperator_SHAPE]                   = &TfLiteParserImpl::ParseShape;
     m_ParserFunctions[tflite::BuiltinOperator_SIN]                     = &TfLiteParserImpl::ParseSin;
@@ -2279,6 +2280,50 @@ void TfLiteParserImpl::ParseLogSoftmax(size_t subgraphIndex, size_t operatorInde
     RegisterOutputSlots(subgraphIndex, operatorIndex, layer, {outputTensorIndexes[0]});
 }
 
+void TfLiteParserImpl::ParseScatterNd(size_t subgraphIndex, size_t operatorIndex)
+{
+    CHECK_MODEL(m_Model, subgraphIndex, operatorIndex);
+
+    TfLiteParserImpl::TensorRawPtrVector inputs = GetInputs(m_Model, subgraphIndex, operatorIndex);
+    CHECK_VALID_SIZE(inputs.size(), 3);
+    TfLiteParserImpl::TensorRawPtrVector outputs = GetOutputs(m_Model, subgraphIndex, operatorIndex);
+    CHECK_VALID_SIZE(outputs.size(), 1);
+
+    armnn::TensorInfo indicesTensorInfo = InputTensorInfo(subgraphIndex, operatorIndex, 0);
+    armnn::TensorInfo updatesTensorInfo = InputTensorInfo(subgraphIndex, operatorIndex, 1);
+    armnn::TensorInfo shapeTensorInfo = InputTensorInfo(subgraphIndex, operatorIndex, 2);
+    armnn::TensorInfo outputTensorInfo = ToTensorInfo(outputs[0]);
+
+    // TFLite currently only have these options: update and no input given, just shape.
+    armnn::ScatterNdDescriptor descriptor(armnn::ScatterNdFunction::Update, false);
+
+    const auto& operatorPtr = m_Model->subgraphs[subgraphIndex]->operators[operatorIndex];
+    const auto* options = operatorPtr->builtin_options.AsScatterNdOptions();
+    IgnoreUnused(options);
+
+    auto layerName = fmt::format("ScatterND:{}:{}", subgraphIndex, operatorIndex);
+
+    IConnectableLayer* layer = m_Network->AddScatterNdLayer(descriptor, layerName.c_str());
+
+    if (!layer)
+    {
+        throw NullPointerException(fmt::format("Layer {} pointer is null {}",
+                                               operatorIndex, CHECK_LOCATION().AsString()));
+    }
+
+    outputTensorInfo = OutputTensorInfoFromInputs(subgraphIndex, operatorIndex, layer, 0, {0, 1, 2});
+    layer->GetOutputSlot(0).SetTensorInfo(outputTensorInfo);
+
+    auto inputTensorIndexes = AsUnsignedVector(GetInputTensorIds(m_Model, subgraphIndex, operatorIndex));
+    RegisterInputSlots(subgraphIndex,
+                       operatorIndex,
+                       layer,
+                       {inputTensorIndexes[2], inputTensorIndexes[0], inputTensorIndexes[1]});
+
+    auto outputTensorIndexes = AsUnsignedVector(GetOutputTensorIds(m_Model, subgraphIndex, operatorIndex));
+    RegisterOutputSlots(subgraphIndex, operatorIndex, layer, {outputTensorIndexes[0]});
+}
+
 void TfLiteParserImpl::ParseSpaceToBatchND(size_t subgraphIndex, size_t operatorIndex)
 {
     CHECK_MODEL(m_Model, subgraphIndex, operatorIndex);