src/core/helpers/SoftmaxHelpers.cpp

/*
* Copyright (c) 2017-2020 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/core/helpers/SoftmaxHelpers.h"

namespace arm_compute
{
namespace softmax_helpers
{
PermutationVector get_permutation_vector_from_softmax_axis(size_t axis)
{
    switch (axis)
    {
        case 1:
            return PermutationVector(1U, 0U, 2U, 3U);
        case 2:
            return PermutationVector(2U, 1U, 0U, 3U);
        case 3:
            return PermutationVector(3U, 1U, 2U, 0U);
        default:
            ARM_COMPUTE_ERROR("Axis not supported");
    }
}
} // namespace softmax_helpers
} // namespace arm_compute