IVGCVSW-2511 Add end to end Gather layer test

 * Add end to end test for Gather operator
 * Add Support for int32 to Constant layer for Ref
 * Add Int32Workload
 * Add RefConstantWorkload as template for float, uint8, int32
 * Remove unused RefBaseConstantWorkload
 * Remove unused RefConstantFloat32Workload
 * Remove unused RefConstantUint8Workload
 * Add support check for int32 in LayerSupport functions

Change-Id: Ic970588a49ebe2aafb12be8adef52371feacaa7b

1 files changed, 40 insertions, 0 deletions

diff --git a/src/backends/reference/workloads/RefConstantWorkload.hpp b/src/backends/reference/workloads/RefConstantWorkload.hpp
new file mode 100644
index 0000000000..75d7ecce26
--- /dev/null
+++ b/src/backends/reference/workloads/RefConstantWorkload.hpp
@@ -0,0 +1,40 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <backendsCommon/Workload.hpp>
+#include <backendsCommon/WorkloadData.hpp>
+
+#include <armnn/Types.hpp>
+
+namespace armnn
+{
+
+// Base class template providing an implementation of the Constant layer common to all data types.
+template <armnn::DataType DataType>
+class RefConstantWorkload : public TypedWorkload<ConstantQueueDescriptor, DataType>
+{
+public:
+    RefConstantWorkload(const ConstantQueueDescriptor& descriptor, const WorkloadInfo& info)
+        : TypedWorkload<ConstantQueueDescriptor, DataType>(descriptor, info)
+        , m_RanOnce(false)
+    {
+    }
+
+    using TypedWorkload<ConstantQueueDescriptor, DataType>::m_Data;
+    using TypedWorkload<ConstantQueueDescriptor, DataType>::TypedWorkload;
+
+    virtual void Execute() const override;
+
+private:
+    mutable bool m_RanOnce;
+};
+
+using RefConstantFloat32Workload = RefConstantWorkload<DataType::Float32>;
+using RefConstantUint8Workload = RefConstantWorkload<DataType::QuantisedAsymm8>;
+using RefConstantInt32Workload = RefConstantWorkload<DataType::Signed32>;
+
+} //namespace armnn