IVGCVSW-8229 & IVGCVSW-8237 ScatterNd: Front end and reference implementation

(scatter_nd, scatter_nd_add, and scatter_nd_update, scatter_nd_sub, scatter_nd_min, scatter_nd_max, scatter_nd_mul)

  * Front end support for ScatterNd added.
  * Reference implementation for ScatterNd added.
  * Unit tests added.

Signed-off-by: Tianle Cheng <tianle.cheng@arm.com>
Change-Id: I30da9056d9b03ca9b5fb8d09987341128badbcf4

1 files changed, 44 insertions, 0 deletions

diff --git a/src/armnn/layers/ScatterNdLayer.hpp b/src/armnn/layers/ScatterNdLayer.hpp
new file mode 100644
index 0000000000..adad66758a
--- /dev/null
+++ b/src/armnn/layers/ScatterNdLayer.hpp
@@ -0,0 +1,44 @@
+//
+// Copyright © 2024 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include "LayerWithParameters.hpp"
+
+namespace armnn
+{
+
+/// This layer represents a ScatterNd operator.
+class ScatterNdLayer : public LayerWithParameters<ScatterNdDescriptor>
+{
+public:
+    /// Makes a workload for the ScatterNd type.
+    /// @param [in] factory The workload factory which will create the workload.
+    /// @return A pointer to the created workload, or nullptr if not created.
+    virtual std::unique_ptr<IWorkload> CreateWorkload(const IWorkloadFactory& factory) const override;
+
+    /// Creates a dynamically-allocated copy of this layer.
+    /// @param [in] graph The graph into which this layer is being cloned.
+    ScatterNdLayer* Clone(Graph& graph) const override;
+
+    /// Infers the output shapes from given input shapes and layer properties.
+    /// @param [in] inputShapes The input shapes layer has.
+    /// @return A vector to the inferred output shape.
+    std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override;
+
+    /// Check if the input tensor shape(s)
+    /// will lead to a valid configuration of @ref ScatterNdLayer.
+    void ValidateTensorShapesFromInputs() override;
+
+protected:
+    /// Constructor to create a ScatterNdLayer.
+    /// @param [in] name Optional name for the layer.
+    ScatterNdLayer(const ScatterNdDescriptor& param, const char* name);
+
+    /// Default destructor
+    ~ScatterNdLayer() = default;
+};
+
+} // namespace armnn