| 1 | /* Common definition for ifunc selections optimized with AVX2/FMA and |
|---|---|
| 2 | FMA4. |
| 3 | Copyright (C) 2017-2024 Free Software Foundation, Inc. |
| 4 | This file is part of the GNU C Library. |
| 5 | |
| 6 | The GNU C Library is free software; you can redistribute it and/or |
| 7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either |
| 9 | version 2.1 of the License, or (at your option) any later version. |
| 10 | |
| 11 | The GNU C Library is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | Lesser General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU Lesser General Public |
| 17 | License along with the GNU C Library; if not, see |
| 18 | <https://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include <init-arch.h> |
| 21 | |
| 22 | extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; |
| 23 | extern __typeof (REDIRECT_NAME) OPTIMIZE (fma) attribute_hidden; |
| 24 | extern __typeof (REDIRECT_NAME) OPTIMIZE (fma4) attribute_hidden; |
| 25 | |
| 26 | static inline void * |
| 27 | IFUNC_SELECTOR (void) |
| 28 | { |
| 29 | const struct cpu_features* cpu_features = __get_cpu_features (); |
| 30 | |
| 31 | if (CPU_FEATURE_USABLE_P (cpu_features, FMA) |
| 32 | && CPU_FEATURE_USABLE_P (cpu_features, AVX2)) |
| 33 | return OPTIMIZE (fma); |
| 34 | |
| 35 | if (CPU_FEATURE_USABLE_P (cpu_features, FMA4)) |
| 36 | return OPTIMIZE (fma4); |
| 37 | |
| 38 | return OPTIMIZE (sse2); |
| 39 | } |
| 40 |