2 files changed, 88 insertions, 0 deletions
diff --git a/src/armnn/layers/RsqrtLayer.cpp b/src/armnn/layers/RsqrtLayer.cpp
new file mode 100644
index 0000000000..d516810c68
--- /dev/null
+++ b/src/armnn/layers/RsqrtLayer.cpp
@@ -0,0 +1,48 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "RsqrtLayer.hpp"
+
+#include "LayerCloneBase.hpp"
+
+#include <armnn/TypesUtils.hpp>
+#include <backendsCommon/WorkloadData.hpp>
+#include <backendsCommon/WorkloadFactory.hpp>
+
+namespace armnn
+{
+
+RsqrtLayer::RsqrtLayer(const char* name)
+    : Layer(1, 1, LayerType::Rsqrt, name)
+{
+}
+
+std::unique_ptr<IWorkload> RsqrtLayer::CreateWorkload(const Graph& graph,
+                                                      const IWorkloadFactory& factory) const
+{
+    RsqrtQueueDescriptor descriptor;
+    return factory.CreateRsqrt(descriptor, PrepInfoAndDesc(descriptor, graph));
+}
+
+RsqrtLayer* RsqrtLayer::Clone(Graph& graph) const
+{
+    return CloneBase<RsqrtLayer>(graph, GetName());
+}
+
+void RsqrtLayer::ValidateTensorShapesFromInputs()
+{
+    VerifyLayerConnections(1, CHECK_LOCATION());
+
+    auto inferredShapes = InferOutputShapes({ GetInputSlot(0).GetConnection()->GetTensorInfo().GetShape() });
+
+    BOOST_ASSERT(inferredShapes.size() == 1);
+
+    ConditionalThrowIfNotEqual<LayerValidationException>(
+            "RsqrtLayer: TensorShape set on OutputSlot[0] does not match the inferred shape.",
+            GetOutputSlot(0).GetTensorInfo().GetShape(),
+            inferredShapes[0]);
+}
+
+} // namespace armnn
+\ No newline at end of file
diff --git a/src/armnn/layers/RsqrtLayer.hpp b/src/armnn/layers/RsqrtLayer.hpp
new file mode 100644
index 0000000000..47a4ccedd6
--- /dev/null
+++ b/src/armnn/layers/RsqrtLayer.hpp
@@ -0,0 +1,40 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <Layer.hpp>
+
+namespace armnn
+{
+
+class RsqrtLayer : public Layer
+{
+public:
+    /// Makes a workload for the Rsqrt 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 Graph& graph,
+                                                      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.
+    RsqrtLayer* Clone(Graph& graph) const override;
+
+    /// Check if the input tensor shape(s)
+    /// will lead to a valid configuration of @ref RsqrtLayer.
+    void ValidateTensorShapesFromInputs() override;
+
+protected:
+    /// Constructor to create an RsqrtLayer.
+    /// @param [in] name Optional name for the layer.
+    RsqrtLayer(const char* name);
+
+    /// Default destructor
+    ~RsqrtLayer() = default;
+};
+
+} // namespace
+\ No newline at end of file