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Diffstat (limited to 'arm_compute/core/utils/helpers/AdjustVecSize.h')
-rw-r--r-- | arm_compute/core/utils/helpers/AdjustVecSize.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arm_compute/core/utils/helpers/AdjustVecSize.h b/arm_compute/core/utils/helpers/AdjustVecSize.h new file mode 100644 index 0000000000..842e3b57d6 --- /dev/null +++ b/arm_compute/core/utils/helpers/AdjustVecSize.h @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2016-2023 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_UTILS_ADJUSTVECSIZE_H +#define ARM_COMPUTE_UTILS_ADJUSTVECSIZE_H + +#include "arm_compute/core/Error.h" + +namespace arm_compute +{ +/** Returns the adjusted vector size in case it is less than the input's first dimension, getting rounded down to its closest valid vector size + * + * @param[in] vec_size vector size to be adjusted + * @param[in] dim0 size of the first dimension + * + * @return the number of element processed along the X axis per thread + */ +inline unsigned int adjust_vec_size(unsigned int vec_size, size_t dim0) +{ + ARM_COMPUTE_ERROR_ON(vec_size > 16); + + if ((vec_size >= dim0) && (dim0 == 3)) + { + return dim0; + } + + while (vec_size > dim0) + { + vec_size >>= 1; + } + + return vec_size; +} +} // namespace arm_compute +#endif /*ARM_COMPUTE_UTILS_H */ |