From 7891a73ef36f4ad7b71069b3c57694f85bb79454 Mon Sep 17 00:00:00 2001
From: Georgios Pinitas <georgios.pinitas@arm.com>
Date: Fri, 20 Aug 2021 21:39:25 +0100
Subject: Move CPU/GPU files from Core/Runtime to the respective backend
 folders

Legacy structure contained two libraries core/runtime with two backends
in each.
We reduce the core/runtime libraries to a single library thus merging
the backend files

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: I69545765fe7a730368105cdbd067d3135ec7a174
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/6155
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
---
 src/cpu/kernels/CpuElementwiseKernel.cpp | 454 +++++++++++++++++++++++++++++++
 1 file changed, 454 insertions(+)
 create mode 100644 src/cpu/kernels/CpuElementwiseKernel.cpp

(limited to 'src/cpu/kernels/CpuElementwiseKernel.cpp')

diff --git a/src/cpu/kernels/CpuElementwiseKernel.cpp b/src/cpu/kernels/CpuElementwiseKernel.cpp
new file mode 100644
index 0000000000..91de24b850
--- /dev/null
+++ b/src/cpu/kernels/CpuElementwiseKernel.cpp
@@ -0,0 +1,454 @@
+/*
+ * Copyright (c) 2018-2021 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.
+ */
+#include "src/cpu/kernels/CpuElementwiseKernel.h"
+
+#include "arm_compute/core/Helpers.h"
+#include "src/core/CPP/Validate.h"
+#include "src/core/common/Registrars.h"
+#include "src/core/helpers/AutoConfiguration.h"
+#include "src/core/helpers/WindowHelpers.h"
+#include "src/cpu/kernels/elementwise/neon/elementwise_list.h"
+#include "src/cpu/kernels/elementwise/neon/elementwise_quantized_list.h"
+#include "src/cpu/kernels/elementwise/sve/elementwise_list.h"
+#include "src/cpu/kernels/elementwise/sve/elementwise_quantized_list.h"
+
+#include <arm_neon.h>
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+namespace
+{
+struct ElementwiseSelectorData
+{
+    DataType       dt;
+    const CPUInfo &ci;
+};
+
+using ElementwiseSelector = std::add_pointer<bool(const ElementwiseSelectorData &)>::type;
+using UKernelType         = CpuElementwiseKernel::ElementwiseFunction;
+struct ElementwiseKernel
+{
+    const char               *name;
+    const ElementwiseSelector is_selected;
+    UKernelType              *ukernel;
+};
+
+template <ArithmeticOperation     op>
+CpuElementwiseKernel::UKernelInfo configure_arithm_func(const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst)
+{
+    ARM_COMPUTE_UNUSED(src1, dst);
+    static ElementwiseKernel kernels[] =
+    {
+#if defined(ARM_COMPUTE_ENABLE_SVE)
+        {
+            "sve_fp32_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::F32 && data.ci.has_sve(); },
+            REGISTER_FP32_SVE((arm_compute::cpu::elementwise_arithmetic_op<op, float32_t>))
+        },
+        {
+            "sve_s32_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::S32 && data.ci.has_sve(); },
+            REGISTER_INTEGER_SVE((arm_compute::cpu::elementwise_arithmetic_op<op, int32_t>))
+        },
+        {
+            "sve_s16_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::S16 && data.ci.has_sve(); },
+            REGISTER_INTEGER_SVE((arm_compute::cpu::elementwise_arithmetic_op<op, int16_t>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_SVE) */
+#if defined(ARM_COMPUTE_ENABLE_NEON)
+        {
+            "neon_fp32_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::F32; },
+            REGISTER_FP32_NEON((arm_compute::cpu::elementwise_arithm_op<op, typename wrapper::traits::neon_vector<float, 4>>))
+        },
+        {
+            "neon_s32_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::S32; },
+            REGISTER_INTEGER_NEON((arm_compute::cpu::elementwise_arithm_op<op, typename wrapper::traits::neon_vector<int32_t, 4>>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_NEON) */
+#if defined(ARM_COMPUTE_ENABLE_SVE2)
+        {
+            "sve2_qu8_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::QASYMM8 && data.ci.has_sve2(); },
+            REGISTER_QASYMM8_SVE((arm_compute::cpu::elementwise_arithmetic_quantized_op<op, uint8_t>))
+        },
+        {
+            "sve2_qs8_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::QASYMM8_SIGNED && data.ci.has_sve2(); },
+            REGISTER_QASYMM8_SIGNED_SVE((arm_compute::cpu::elementwise_arithmetic_quantized_op<op, int8_t>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_SVE2) */
+#if defined(ARM_COMPUTE_ENABLE_NEON) || defined(ARM_COMPUTE_ENABLE_SVE)
+        {
+            "neon_qu8_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::QASYMM8; },
+            REGISTER_QASYMM8_NEON((arm_compute::cpu::elementwise_arithm_op_quantized<op>))
+        },
+        {
+            "neon_qs8_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::QASYMM8_SIGNED; },
+            REGISTER_QASYMM8_SIGNED_NEON((arm_compute::cpu::elementwise_arithm_op_quantized_signed<op>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_NEON)  || defined(ARM_COMPUTE_ENABLE_SVE) */
+#if defined(ARM_COMPUTE_ENABLE_SVE)
+        {
+            "sve_fp16_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::F16 && data.ci.has_sve(); },
+            REGISTER_FP16_SVE((arm_compute::cpu::elementwise_arithmetic_op<op, float16_t>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_SVE) */
+#if defined(ARM_COMPUTE_ENABLE_NEON)
+#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC)
+        {
+            "neon_fp16_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::F16 && data.ci.has_fp16(); },
+            REGISTER_FP16_NEON((arm_compute::cpu::elementwise_arithm_op<op, typename wrapper::traits::neon_vector<float16_t, 8>>))
+        },
+#endif /* defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) */
+        {
+            "neon_s16_elementwise",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::S16; },
+            REGISTER_INTEGER_NEON((arm_compute::cpu::elementwise_arithm_op<op, typename wrapper::traits::neon_vector<int16_t, 8>>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_NEON) */
+    };
+
+    for(const auto &uk : kernels)
+    {
+        if(uk.is_selected({ src0->data_type(), CPUInfo::get() }))
+        {
+            return { uk.name, uk.ukernel };
+        }
+    }
+
+    return { "", nullptr };
+}
+
+template <ComparisonOperation     op>
+CpuElementwiseKernel::UKernelInfo configure_comp_func(const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst)
+{
+    ARM_COMPUTE_UNUSED(src1, dst);
+    static ElementwiseKernel kernels[] =
+    {
+#if defined(ARM_COMPUTE_ENABLE_SVE)
+        {
+            "sve_u8_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::U8 && data.ci.has_sve(); },
+            REGISTER_INTEGER_SVE((arm_compute::cpu::elementwise_comparison_op<op, uint8_t>))
+        },
+        {
+            "sve_fp32_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::F32 && data.ci.has_sve(); },
+            REGISTER_FP32_SVE((arm_compute::cpu::elementwise_comparison_op<op, float>))
+        },
+        {
+            "sve_s16_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::S16 && data.ci.has_sve(); },
+            REGISTER_INTEGER_SVE((arm_compute::cpu::elementwise_comparison_op<op, int16_t>))
+        },
+        {
+            "sve_s32_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::S32 && data.ci.has_sve(); },
+            REGISTER_INTEGER_SVE((arm_compute::cpu::elementwise_comparison_op<op, int32_t>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_SVE) */
+#if defined(ARM_COMPUTE_ENABLE_NEON)
+        {
+            "neon_u8_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::U8; },
+            REGISTER_INTEGER_NEON((arm_compute::cpu::elementwise_comp_op_8<op, uint8_t, uint8x16_t>))
+        },
+        {
+            "neon_fp32_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::F32; },
+            REGISTER_FP32_NEON((arm_compute::cpu::elementwise_comp_op_32<op, float, float32x4_t>))
+        },
+        {
+            "neon_s16_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::S16; },
+            REGISTER_INTEGER_NEON((arm_compute::cpu::elementwise_comp_op_16<op, int16_t, int16x8_t>))
+        },
+        {
+            "neon_s32_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::S32; },
+            REGISTER_INTEGER_NEON((arm_compute::cpu::elementwise_comp_op_32<op, int32_t, int32x4_t>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_NEON) */
+#if defined(ARM_COMPUTE_ENABLE_SVE2)
+        {
+            "sve2_qu8_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::QASYMM8 && data.ci.has_sve2(); },
+            REGISTER_QASYMM8_SVE((arm_compute::cpu::elementwise_comparison_quantized_op<op, uint8_t>))
+        },
+        {
+            "sve2_qs8_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::QASYMM8_SIGNED && data.ci.has_sve2(); },
+            REGISTER_QASYMM8_SIGNED_SVE((arm_compute::cpu::elementwise_comparison_quantized_op<op, int8_t>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_SVE2) */
+#if defined(ARM_COMPUTE_ENABLE_NEON) || defined(ARM_COMPUTE_ENABLE_SVE)
+        {
+            "neon_qu8_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::QASYMM8; },
+            REGISTER_QASYMM8_NEON((arm_compute::cpu::elementwise_comp_op_quantized<op>))
+        },
+        {
+            "neon_qs8_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::QASYMM8_SIGNED; },
+            REGISTER_QASYMM8_SIGNED_NEON((arm_compute::cpu::elementwise_comp_op_quantized_signed<op>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_NEON)  || defined(ARM_COMPUTE_ENABLE_SVE) */
+#if defined(ARM_COMPUTE_ENABLE_SVE)
+        {
+            "sve_fp16_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::F16 && data.ci.has_sve(); },
+            REGISTER_FP16_SVE((arm_compute::cpu::elementwise_comparison_op<op, float16_t>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_SVE)  */
+#if defined(ARM_COMPUTE_ENABLE_NEON) && defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC)
+        {
+            "neon_fp16_comparison",
+            [](const ElementwiseSelectorData & data) { return data.dt == DataType::F16 && data.ci.has_fp16(); },
+            REGISTER_FP16_NEON((arm_compute::cpu::elementwise_comp_op_16<op, float16_t, float16x8_t>))
+        },
+#endif /* defined(ARM_COMPUTE_ENABLE_NEON) && defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) */
+    };
+
+    for(const auto &uk : kernels)
+    {
+        if(uk.is_selected({ src0->data_type(), CPUInfo::get() }))
+        {
+            return { uk.name, uk.ukernel };
+        }
+    }
+
+    return { "", nullptr };
+}
+} // namespace
+
+Status CpuElementwiseKernel::validate_arguments_common(const ITensorInfo &src0, const ITensorInfo &src1, const ITensorInfo &dst)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_CPU_F16_UNSUPPORTED(&src0);
+    ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(&src0, &src1);
+
+    const TensorShape out_shape = TensorShape::broadcast_shape(src0.tensor_shape(), src1.tensor_shape());
+
+    ARM_COMPUTE_RETURN_ERROR_ON_MSG(out_shape.total_size() == 0, "Inputs are not broadcast compatible");
+
+    // Validate in case of configured dst
+    if(dst.total_size() > 0)
+    {
+        ARM_COMPUTE_RETURN_ERROR_ON_MSG(detail::have_different_dimensions(out_shape, dst.tensor_shape(), 0),
+                                        "Wrong shape for output");
+    }
+
+    return Status{};
+}
+
+void CpuElementwiseKernel::configure_common(const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst)
+{
+    ARM_COMPUTE_ERROR_ON_NULLPTR(src0, src1, dst);
+
+    const auto uk = get_implementation(src0, src1, dst);
+
+    _run_method = uk.ukernel;
+    _name       = std::string("CpuElementwiseKernel").append("/").append(uk.name);
+
+    // If any of shapes is dynamic, expect a configured window and dst at run-time.
+    if(src0->is_dynamic() || src1->is_dynamic())
+    {
+        return;
+    }
+
+    auto shape_and_window = compute_output_shape_and_window(src0->tensor_shape(), src1->tensor_shape());
+    auto_init_if_empty(*dst, shape_and_window.first, 1, src0->data_type());
+    ICpuKernel::configure(shape_and_window.second);
+}
+
+void CpuElementwiseKernel::run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info)
+{
+    ARM_COMPUTE_UNUSED(info);
+    ARM_COMPUTE_ERROR_ON(_run_method == nullptr);
+
+    auto src0 = tensors.get_const_tensor(TensorType::ACL_SRC_0);
+    auto src1 = tensors.get_const_tensor(TensorType::ACL_SRC_1);
+    auto dst  = tensors.get_tensor(TensorType::ACL_DST);
+
+    _run_method(src0, src1, dst, window);
+}
+
+const char *CpuElementwiseKernel::name() const
+{
+    return _name.c_str();
+}
+
+/** Arithmetic operators (min, max, squared_diff) */
+void CpuArithmeticKernel::configure(ArithmeticOperation op, const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst)
+{
+    ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(*src0, *src1, *dst));
+    _op = op;
+    configure_common(src0, src1, dst);
+}
+
+Status CpuArithmeticKernel::validate_arguments(const ITensorInfo &src0, const ITensorInfo &src1, const ITensorInfo &dst)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(&src0, 1, DataType::QASYMM8, DataType::QASYMM8_SIGNED, DataType::S16, DataType::F16, DataType::S32, DataType::F32);
+    // Validate in case of configured dst
+    if(dst.total_size() > 0)
+    {
+        ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(&src0, &dst);
+    }
+    return validate_arguments_common(src0, src1, dst);
+}
+
+Status CpuArithmeticKernel::validate(ArithmeticOperation op, const ITensorInfo *src0, const ITensorInfo *src1, const ITensorInfo *dst)
+{
+    ARM_COMPUTE_UNUSED(op);
+    ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(src0, src1, dst);
+    ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(*src0, *src1, *dst));
+    return Status{};
+}
+
+CpuElementwiseKernel::UKernelInfo CpuArithmeticKernel::get_implementation(const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst)
+{
+    switch(_op)
+    {
+        case ArithmeticOperation::MAX:
+            return configure_arithm_func<ArithmeticOperation::MAX>(src0, src1, dst);
+        case ArithmeticOperation::MIN:
+            return configure_arithm_func<ArithmeticOperation::MIN>(src0, src1, dst);
+        case ArithmeticOperation::SQUARED_DIFF:
+            return configure_arithm_func<ArithmeticOperation::SQUARED_DIFF>(src0, src1, dst);
+        case ArithmeticOperation::PRELU:
+            return configure_arithm_func<ArithmeticOperation::PRELU>(src0, src1, dst);
+        case ArithmeticOperation::DIV:
+            return configure_arithm_func<ArithmeticOperation::DIV>(src0, src1, dst);
+        case ArithmeticOperation::POWER:
+            return configure_arithm_func<ArithmeticOperation::POWER>(src0, src1, dst);
+        default:
+            ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
+    }
+    return { "", nullptr };
+}
+
+/** The division operator */
+
+void CpuDivisionKernel::configure(const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst)
+{
+    ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(*src0, *src1, *dst));
+    _op = ArithmeticOperation::DIV;
+    configure_common(src0, src1, dst);
+}
+
+Status CpuDivisionKernel::validate_arguments(const ITensorInfo &src0, const ITensorInfo &src1, const ITensorInfo &dst)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(&src0, 1, DataType::S32, DataType::F16, DataType::F32);
+    return CpuArithmeticKernel::validate_arguments(src0, src1, dst);
+}
+
+Status CpuDivisionKernel::validate(const ITensorInfo *src0, const ITensorInfo *src1, const ITensorInfo *dst)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(src0, src1, dst);
+    ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(*src0, *src1, *dst));
+    return Status{};
+}
+
+/** The power operator */
+void CpuPowerKernel::configure(const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst)
+{
+    ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(*src0, *src1, *dst));
+    _op = ArithmeticOperation::POWER;
+    configure_common(src0, src1, dst);
+}
+
+Status CpuPowerKernel::validate_arguments(const ITensorInfo &src0, const ITensorInfo &src1, const ITensorInfo &dst)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(&src0, 1, DataType::F16, DataType::F32);
+    return CpuArithmeticKernel::validate_arguments(src0, src1, dst);
+}
+
+Status CpuPowerKernel::validate(const ITensorInfo *src0, const ITensorInfo *src1, const ITensorInfo *dst)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(src0, src1, dst);
+    ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(*src0, *src1, *dst));
+    return Status{};
+}
+
+/** Comparison operators (equal, not equal, less than, greater than, less than or equal, greater than or equal) */
+void CpuComparisonKernel::configure(ComparisonOperation op, const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst)
+{
+    ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(*src0, *src1, *dst));
+    _op = op;
+    configure_common(src0, src1, dst);
+}
+
+Status CpuComparisonKernel::validate_arguments(const ITensorInfo &src0, const ITensorInfo &src1, const ITensorInfo &dst)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(&src0, 1, DataType::U8, DataType::QASYMM8, DataType::QASYMM8_SIGNED, DataType::S16, DataType::F16, DataType::S32, DataType::F32);
+    // Validate in case of configured dst
+    if(dst.total_size() > 0)
+    {
+        ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(&dst, 1, DataType::U8);
+    }
+    return validate_arguments_common(src0, src1, dst);
+}
+
+Status CpuComparisonKernel::validate(ComparisonOperation op, const ITensorInfo *src0, const ITensorInfo *src1, const ITensorInfo *dst)
+{
+    ARM_COMPUTE_UNUSED(op);
+    ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(src0, src1, dst);
+    ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(*src0, *src1, *dst));
+    return Status{};
+}
+
+CpuElementwiseKernel::UKernelInfo CpuComparisonKernel::get_implementation(const ITensorInfo *src0, const ITensorInfo *src1, ITensorInfo *dst)
+{
+    switch(_op)
+    {
+        case ComparisonOperation::Equal:
+            return configure_comp_func<ComparisonOperation::Equal>(src0, src1, dst);
+        case ComparisonOperation::NotEqual:
+            return configure_comp_func<ComparisonOperation::NotEqual>(src0, src1, dst);
+        case ComparisonOperation::Greater:
+            return configure_comp_func<ComparisonOperation::Greater>(src0, src1, dst);
+        case ComparisonOperation::GreaterEqual:
+            return configure_comp_func<ComparisonOperation::GreaterEqual>(src0, src1, dst);
+        case ComparisonOperation::Less:
+            return configure_comp_func<ComparisonOperation::Less>(src0, src1, dst);
+        case ComparisonOperation::LessEqual:
+            return configure_comp_func<ComparisonOperation::LessEqual>(src0, src1, dst);
+        default:
+            ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
+    }
+    return { "", nullptr };
+}
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
-- 
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