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diff --git a/arm_compute/runtime/GLES_COMPUTE/functions/GCActivationLayer.h b/arm_compute/runtime/GLES_COMPUTE/functions/GCActivationLayer.h
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+/*
+ * Copyright (c) 2017 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_GCACTIVATIONLAYER_H__
+#define __ARM_COMPUTE_GCACTIVATIONLAYER_H__
+
+#include "arm_compute/core/Types.h"
+#include "arm_compute/runtime/GLES_COMPUTE/IGCSimpleFunction.h"
+
+namespace arm_compute
+{
+class IGCTensor;
+
+/** Basic function to run @ref GCActivationLayerKernel
+ *
+ * @note The function simulates an activation layer with the specified activation function.
+ */
+class GCActivationLayer : public IGCSimpleFunction
+{
+public:
+    /** Set the input and output tensor.
+     *
+     * @note If the output tensor is a nullptr, the activation function will be performed in-place
+     *
+     * @param[in, out] input    Source tensor. In case of @p output tensor = nullptr, this tensor will store the result
+     *                          of the activation function. Data types supported: F16/F32.
+     * @param[out]     output   Destination tensor. Data type supported: same as @p input
+     * @param[in]      act_info Activation layer parameters.
+     */
+    void configure(IGCTensor *input, IGCTensor *output, ActivationLayerInfo act_info);
+};
+}
+#endif /* __ARM_COMPUTE_GCACTIVATIONLAYER_H__ */