IVGCVSW-3829 Add CL workload for RSQRT

Signed-off-by: Aron Virginas-Tar <Aron.Virginas-Tar@arm.com>
Change-Id: Idf40ed0ebf2af3170137bf3a3cb5a9635a203d4a
diff --git a/src/backends/cl/workloads/ClRsqrtWorkload.hpp b/src/backends/cl/workloads/ClRsqrtWorkload.hpp
new file mode 100644
index 0000000..8fb6229
--- /dev/null
+++ b/src/backends/cl/workloads/ClRsqrtWorkload.hpp
@@ -0,0 +1,28 @@
+//
+// Copyright © 2019 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <backendsCommon/Workload.hpp>
+
+#include <arm_compute/core/Error.h>
+#include <arm_compute/runtime/CL/functions/CLElementWiseUnaryLayer.h>
+
+namespace armnn
+{
+
+arm_compute::Status ClRsqrtWorkloadValidate(const TensorInfo& input, const TensorInfo& output);
+
+class ClRsqrtWorkload : public BaseWorkload<RsqrtQueueDescriptor>
+{
+public:
+    ClRsqrtWorkload(const RsqrtQueueDescriptor& descriptor, const WorkloadInfo& info);
+    virtual void Execute() const override;
+
+private:
+    mutable arm_compute::CLRsqrtLayer m_RsqrtLayer;
+};
+
+} // namespace armnn