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diff --git a/runtimes/libs/ARMComputeEx/arm_compute/runtime/NEON/functions/NEReduceSum.h b/runtimes/libs/ARMComputeEx/arm_compute/runtime/NEON/functions/NEReduceSum.h
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+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ * Copyright (c) 2018-2019 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __ARM_COMPUTE_NEON_REDUCE_SUM_H__
+#define __ARM_COMPUTE_NEON_REDUCE_SUM_H__
+
+#include "arm_compute/runtime/IFunction.h"
+
+#include "arm_compute/core/NEON/kernels/NEFillBorderKernel.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/runtime/MemoryGroup.h"
+#include "arm_compute/runtime/NEON/functions/NEReductionOperation.h"
+#include "arm_compute/runtime/NEON/functions/NEReshapeLayer.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Basic function to perform reduce operation */
+class NEReduceSum : public IFunction
+{
+public:
+  /** Constructor */
+  NEReduceSum(std::shared_ptr<IMemoryManager> memory_manager = nullptr);
+  /** Configure kernel
+   *
+   * @note Supported tensor rank: up to 4
+   *
+   * @param[in]  input          Source tensor. Data type supported: QASYMM8/F16/F32
+   * @param[in]  reduction_axis Reduction axis vector.
+   * @param[in]  keep_dims      If positive, retains reduced dimensions with length 1.
+   * @param[out] output         Destination tensor. Data type supported: Same as @p input
+   */
+  void configure(ITensor *input, const Coordinates &reduction_axis, bool keep_dims,
+                 ITensor *output);
+
+  /** Static function to check if given info will lead to a valid configuration of @ref NEReduceSum
+   *
+   * @param[in] input          Source tensor. Data type supported: QASYMM8/F16/F32
+   * @param[in] reduction_axis Reduction axis vector.
+   * @param[in] keep_dims      If positive, retains reduced dimensions with length 1.
+   * @param[in] output         Destination tensor. Data type supported: Same as @p input
+   *
+   * @return A status
+   */
+  static Status validate(const ITensorInfo *input, const Coordinates &reduction_axis,
+                         bool keep_dims, const ITensorInfo *output);
+
+  // Inherited methods overridden:
+  void run() override;
+
+private:
+  MemoryGroup _memory_group;
+  std::vector<NEReductionOperation> _reduction_kernels;
+  std::vector<Tensor> _reduced_outs;
+  NEReshapeLayer _reshape;
+  unsigned int _reduction_ops;
+  bool _keep_dims;
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_NEON_REDUCE_SUM_H__ */