1 /* Common definition for libmathvec ifunc selections optimized with
3 Copyright (C) 2017-2024 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
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.
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.
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/>. */
20 #include <init-arch.h>
23 #define PASTER2(x,y) x##_##y
25 extern void REDIRECT_NAME (void);
26 extern __typeof (REDIRECT_NAME
) OPTIMIZE (avx2_wrapper
) attribute_hidden
;
27 extern __typeof (REDIRECT_NAME
) OPTIMIZE (knl
) attribute_hidden
;
28 extern __typeof (REDIRECT_NAME
) OPTIMIZE (skx
) attribute_hidden
;
33 const struct cpu_features
* cpu_features
= __get_cpu_features ();
35 if (!CPU_FEATURES_ARCH_P (cpu_features
, MathVec_Prefer_No_AVX512
))
37 if (CPU_FEATURE_USABLE_P (cpu_features
, AVX512DQ
))
38 return OPTIMIZE (skx
);
40 if (CPU_FEATURE_USABLE_P (cpu_features
, AVX512F
))
41 return OPTIMIZE (knl
);
44 return OPTIMIZE (avx2_wrapper
);