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diff --git a/src/cpu/kernels/instancenorm/generic/neon/impl.h b/src/cpu/kernels/instancenorm/generic/neon/impl.h
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+++ b/src/cpu/kernels/instancenorm/generic/neon/impl.h
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+/*
+ * Copyright (c) 2022 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 SRC_CORE_SVE_KERNELS_INSTANCENORM_IMPL_H
+#define SRC_CORE_SVE_KERNELS_INSTANCENORM_IMPL_H
+#include "arm_compute/core/Helpers.h"
+namespace arm_compute
+{
+namespace cpu
+{
+template <typename T, typename AccType = T>
+void instance_normalization_nchw(ITensor *input, ITensor *output, float gamma, float beta, float epsilon, const Window &window);
+
+template <typename InputType, typename AccType = InputType>
+void vector_float_sum(AccType &result, AccType &result_square, const InputType &inputs);
+
+template <typename InputType, typename AccType = InputType>
+InputType vector_float_norm(const InputType &inputs, const AccType &vec_mean, const AccType &vec_multip, const AccType &vec_beta);
+
+#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+template <>
+inline void vector_float_sum(float32x4_t &result, float32x4_t &result_square, const float16x8_t &inputs);
+
+template <>
+inline float16x8_t vector_float_norm(const float16x8_t &inputs, const float32x4_t &vec_mean, const float32x4_t &vec_multip, const float32x4_t &vec_beta);
+#endif //defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+
+} // namespace cpu
+} // namespace arm_compute
+#endif //define SRC_CORE_SVE_KERNELS_INSTANCENORM_IMPL_H