IVGCVSW-4603 Support comparison operators in CL

    * Deprecate ClGreaterWorkload
    * Add ClComparisonWorkload to encompass all comparison operators

Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: Ida0ed7f59899d75b0fe7de1e7433b1ade018c6f1
diff --git a/src/backends/cl/workloads/ClComparisonWorkload.hpp b/src/backends/cl/workloads/ClComparisonWorkload.hpp
new file mode 100644
index 0000000..e842152
--- /dev/null
+++ b/src/backends/cl/workloads/ClComparisonWorkload.hpp
@@ -0,0 +1,30 @@
+//
+// Copyright © 2020 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <backendsCommon/Workload.hpp>
+
+#include <arm_compute/runtime/CL/functions/CLComparison.h>
+
+namespace armnn
+{
+
+arm_compute::Status ClComparisonWorkloadValidate(const TensorInfo& input0,
+                                                 const TensorInfo& input1,
+                                                 const TensorInfo& output,
+                                                 const ComparisonDescriptor& descriptor);
+
+class ClComparisonWorkload : public BaseWorkload<ComparisonQueueDescriptor>
+{
+public:
+    ClComparisonWorkload(const ComparisonQueueDescriptor& descriptor, const WorkloadInfo& info);
+    void Execute() const override;
+
+private:
+    mutable arm_compute::CLComparison m_ComparisonLayer;
+};
+
+} //namespace armnn