Georgios Pinitas | ff4fca0 | 2020-10-02 21:00:00 +0100 | [diff] [blame] | 1 | /* |
Georgios Pinitas | 70eb53b | 2021-01-06 19:42:21 +0000 | [diff] [blame] | 2 | * Copyright (c) 2020-2021 Arm Limited. |
Georgios Pinitas | ff4fca0 | 2020-10-02 21:00:00 +0100 | [diff] [blame] | 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | #if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS) |
| 25 | |
Georgios Pinitas | 8a5146f | 2021-01-12 15:51:07 +0000 | [diff] [blame] | 26 | #include "src/common/utils/Validate.h" |
Georgios Pinitas | ff4fca0 | 2020-10-02 21:00:00 +0100 | [diff] [blame] | 27 | #include "src/core/NEON/NEMath.h" |
Georgios Pinitas | ff4fca0 | 2020-10-02 21:00:00 +0100 | [diff] [blame] | 28 | |
| 29 | #include <arm_neon.h> |
| 30 | #include <cmath> |
| 31 | #include <cstddef> |
| 32 | |
| 33 | namespace arm_compute |
| 34 | { |
| 35 | namespace cpu |
| 36 | { |
| 37 | constexpr int step = 8; |
| 38 | |
| 39 | void fp16_neon_floor(const void *src, void *dst, int len) |
| 40 | { |
| 41 | ARM_COMPUTE_ASSERT_NOT_NULLPTR(src); |
| 42 | ARM_COMPUTE_ASSERT_NOT_NULLPTR(dst); |
| 43 | ARM_COMPUTE_ASSERT(len >= 0); |
| 44 | |
Georgios Pinitas | 70eb53b | 2021-01-06 19:42:21 +0000 | [diff] [blame] | 45 | auto psrc = static_cast<const __fp16 *>(src); |
| 46 | auto pdst = static_cast<__fp16 *>(dst); |
Georgios Pinitas | ff4fca0 | 2020-10-02 21:00:00 +0100 | [diff] [blame] | 47 | |
| 48 | for(; len >= step; len -= step) |
| 49 | { |
| 50 | vst1q_f16(pdst, vfloorq_f16(vld1q_f16(psrc))); |
| 51 | psrc += step; |
| 52 | pdst += step; |
| 53 | } |
| 54 | |
Michele Di Giorgio | 70ddabc | 2020-10-29 15:32:45 +0000 | [diff] [blame] | 55 | for(; len > 0; --len) |
Georgios Pinitas | ff4fca0 | 2020-10-02 21:00:00 +0100 | [diff] [blame] | 56 | { |
Georgios Pinitas | 58bce68 | 2020-11-13 11:38:58 +0000 | [diff] [blame] | 57 | *pdst = std::floor(*psrc); |
| 58 | ++psrc; |
| 59 | ++pdst; |
Georgios Pinitas | ff4fca0 | 2020-10-02 21:00:00 +0100 | [diff] [blame] | 60 | } |
| 61 | } |
| 62 | } // namespace cpu |
| 63 | } // namespace arm_compute |
| 64 | #endif /* defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS) */ |