NEBitwiseAndKernel.cpp

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/*
 * Copyright (c) 2016-2021 Arm Limited.
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 * SPDX-License-Identifier: MIT
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#include "src/core/NEON/kernels/NEBitwiseAndKernel.h"
 
#include "arm_compute/core/Helpers.h"
#include "arm_compute/core/ITensor.h"
#include "arm_compute/core/Types.h"
#include "arm_compute/core/Validate.h"
 
#include "src/core/helpers/AutoConfiguration.h"
#include "src/core/helpers/WindowHelpers.h"
#include "src/core/NEON/wrapper/wrapper.h"
 
#include <arm_neon.h>
#include <cstdint>
 
using namespace arm_compute;
using namespace arm_compute::wrapper;
 
namespace arm_compute
{
class Coordinates;
} // namespace arm_compute
 
namespace
{
template <typename T>
inline void bitwise_and(const T *__restrict input1, const T *__restrict input2, T *__restrict output)
{
    using type      = typename wrapper::traits::neon_bitvector<T, wrapper::traits::BitWidth::W128>::type;
    const type val1 = vloadq(static_cast<const T *>(input1));
    const type val2 = vloadq(static_cast<const T *>(input2));
 
    vstore(static_cast<T *>(output), vand(val1, val2));
}
} // namespace
 
NEBitwiseAndKernel::NEBitwiseAndKernel() : _input1(nullptr), _input2(nullptr), _output(nullptr)
{
}
 
void NEBitwiseAndKernel::configure(const ITensor *input1, const ITensor *input2, ITensor *output)
{
    ARM_COMPUTE_ERROR_ON_NULLPTR(input1, input2, output);
 
    set_shape_if_empty(*output->info(), input1->info()->tensor_shape());
 
    set_format_if_unknown(*output->info(), Format::U8);
    set_format_if_unknown(*input1->info(), Format::U8);
    set_format_if_unknown(*input2->info(), Format::U8);
 
    ARM_COMPUTE_ERROR_ON_MISMATCHING_SHAPES(input1, input2, output);
    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input1, 1, DataType::U8);
    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input2, 1, DataType::U8);
    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8);
    ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input1, input2, output);
 
    _input1 = input1;
    _input2 = input2;
    _output = output;
 
    constexpr unsigned int num_elems_processed_per_iteration = 16;
 
    // Configure kernel window
    Window                 win = calculate_max_window(*input1->info(), Steps(num_elems_processed_per_iteration));
    AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration);
 
    update_window_and_padding(win, AccessWindowHorizontal(input1->info(), 0, num_elems_processed_per_iteration),
                              AccessWindowHorizontal(input2->info(), 0, num_elems_processed_per_iteration),
                              output_access);
 
    INEKernel::configure(win);
}
 
void NEBitwiseAndKernel::run(const Window &window, const ThreadInfo &info)
{
    ARM_COMPUTE_UNUSED(info);
    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window);
    Iterator input1(_input1, window);
    Iterator input2(_input2, window);
    Iterator output(_output, window);
 
    execute_window_loop(
        window, [&](const Coordinates &) { bitwise_and<uint8_t>(input1.ptr(), input2.ptr(), output.ptr()); }, input1,
        input2, output);
}