IVGCVSW-4259 Add frontend and reference workload for UnaryOperationLayer

* Added new layer named ElementwiseUnary
* Deprecated existing Abs/Rsqrt layer functions
* Updated existing Abs/Rsqrt test infrastructure to use new layer
* Added boilerplate for new Exp,Neg,Sqrt elemwise op layers
* AbsQuantize test removed pending future commit
* Serialization support added

!android-nn-driver:2550

Change-Id: Ic595c645925e17b45db568187fd05646daf2e87f
Signed-off-by: josh minor <josh.minor@arm.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/src/armnn/layers/ElementwiseUnaryLayer.hpp b/src/armnn/layers/ElementwiseUnaryLayer.hpp
new file mode 100644
index 0000000000..850a814b6e
--- /dev/null
+++ b/src/armnn/layers/ElementwiseUnaryLayer.hpp
@@ -0,0 +1,48 @@
+//
+// Copyright © 2019 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include "LayerWithParameters.hpp"
+
+namespace armnn
+{
+
+/// This layer represents a elementwiseUnary operation.
+class ElementwiseUnaryLayer : public LayerWithParameters<ElementwiseUnaryDescriptor>
+{
+public:
+    /// Makes a workload for the elementwiseUnary type
+    /// @param [in] graph The graph where this layer can be found
+    /// @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
+    ElementwiseUnaryLayer* Clone(Graph& graph) const override;
+
+    /// Returns inputShapes by default.
+    /// @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 ElementwiseUnaryLayer
+    void ValidateTensorShapesFromInputs() override;
+
+    void Accept(ILayerVisitor& visitor) const override;
+
+protected:
+    /// Constructor to create a ElementwiseUnaryLayer
+    /// @param [in] param ElementwiseUnaryDescriptor to configure the ElementwiseUnaryLayer
+    /// @param [in] name Optional name for the layer
+    ElementwiseUnaryLayer(const ElementwiseUnaryDescriptor& param, const char* name);
+
+    /// Default destructor
+    ~ElementwiseUnaryLayer() = default;
+};
+
+} // namespace armnn