IVGCVSW-1900 : CL backend folder structure

* moving backends/ClWorkloads to backends/cl
* and moving pure Cl workload related code to
  backends/cl/workloads

Change-Id: I019a3c6b4da5e7a23074bf03fb057e63199ad129
diff --git a/src/backends/cl/workloads/ClPooling2dBaseWorkload.cpp b/src/backends/cl/workloads/ClPooling2dBaseWorkload.cpp
new file mode 100644
index 0000000..9891185
--- /dev/null
+++ b/src/backends/cl/workloads/ClPooling2dBaseWorkload.cpp
@@ -0,0 +1,47 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "ClPooling2dBaseWorkload.hpp"
+#include <backends/cl/ClLayerSupport.hpp>
+#include <backends/cl/ClTensorHandle.hpp>
+#include <backends/aclCommon/ArmComputeUtils.hpp>
+#include <backends/aclCommon/ArmComputeTensorUtils.hpp>
+
+namespace armnn
+{
+using namespace armcomputetensorutils;
+
+arm_compute::Status ClPooling2dWorkloadValidate(const TensorInfo& input,
+    const TensorInfo& output,
+    const Pooling2dDescriptor& descriptor)
+{
+    const arm_compute::TensorInfo aclInputInfo = BuildArmComputeTensorInfo(input);
+    const arm_compute::TensorInfo aclOutputInfo = BuildArmComputeTensorInfo(output);
+
+    arm_compute::PoolingLayerInfo layerInfo = BuildArmComputePoolingLayerInfo(descriptor);
+
+    return arm_compute::CLPoolingLayer::validate(&aclInputInfo, &aclOutputInfo, layerInfo);
+}
+
+template <armnn::DataType... dataTypes>
+ClPooling2dBaseWorkload<dataTypes...>::ClPooling2dBaseWorkload(
+    const Pooling2dQueueDescriptor& descriptor, const WorkloadInfo& info, const std::string& name)
+    : TypedWorkload<Pooling2dQueueDescriptor, dataTypes...>(descriptor, info)
+{
+    m_Data.ValidateInputsOutputs(name, 1, 1);
+
+    arm_compute::ICLTensor& input = static_cast<IClTensorHandle*>(m_Data.m_Inputs[0])->GetTensor();
+    arm_compute::ICLTensor& output = static_cast<IClTensorHandle*>(m_Data.m_Outputs[0])->GetTensor();
+
+    arm_compute::PoolingLayerInfo layerInfo = BuildArmComputePoolingLayerInfo(m_Data.m_Parameters);
+
+    // Run the layer.
+    m_PoolingLayer.configure(&input, &output, layerInfo);
+}
+
+template class ClPooling2dBaseWorkload<DataType::Float16, DataType::Float32>;
+template class ClPooling2dBaseWorkload<DataType::QuantisedAsymm8>;
+
+}