diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/bzero.c')
| -rw-r--r-- | sysdeps/x86_64/multiarch/bzero.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/sysdeps/x86_64/multiarch/bzero.c b/sysdeps/x86_64/multiarch/bzero.c deleted file mode 100644 index 58a14b2c33..0000000000 --- a/sysdeps/x86_64/multiarch/bzero.c +++ /dev/null @@ -1,106 +0,0 @@ -/* Multiple versions of bzero. - All versions must be listed in ifunc-impl-list.c. - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -/* Define multiple versions only for the definition in libc. */ -#if IS_IN (libc) -# define __bzero __redirect___bzero -# include <string.h> -# undef __bzero - -# define SYMBOL_NAME __bzero -# include <init-arch.h> - -extern __typeof (REDIRECT_NAME) OPTIMIZE1 (sse2_unaligned) - attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE1 (sse2_unaligned_erms) - attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE1 (avx2_unaligned) attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE1 (avx2_unaligned_erms) - attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE1 (avx2_unaligned_rtm) - attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE1 (avx2_unaligned_erms_rtm) - attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE1 (evex_unaligned) - attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE1 (evex_unaligned_erms) - attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE1 (avx512_unaligned) - attribute_hidden; -extern __typeof (REDIRECT_NAME) OPTIMIZE1 (avx512_unaligned_erms) - attribute_hidden; - -static inline void * -IFUNC_SELECTOR (void) -{ - const struct cpu_features* cpu_features = __get_cpu_features (); - - if (CPU_FEATURE_USABLE_P (cpu_features, AVX512F) - && !CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_AVX512)) - { - if (CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512BW) - && CPU_FEATURE_USABLE_P (cpu_features, BMI2)) - { - if (CPU_FEATURE_USABLE_P (cpu_features, ERMS)) - return OPTIMIZE1 (avx512_unaligned_erms); - - return OPTIMIZE1 (avx512_unaligned); - } - } - - if (CPU_FEATURE_USABLE_P (cpu_features, AVX2)) - { - if (CPU_FEATURE_USABLE_P (cpu_features, AVX512VL) - && CPU_FEATURE_USABLE_P (cpu_features, AVX512BW) - && CPU_FEATURE_USABLE_P (cpu_features, BMI2)) - { - if (CPU_FEATURE_USABLE_P (cpu_features, ERMS)) - return OPTIMIZE1 (evex_unaligned_erms); - - return OPTIMIZE1 (evex_unaligned); - } - - if (CPU_FEATURE_USABLE_P (cpu_features, RTM)) - { - if (CPU_FEATURE_USABLE_P (cpu_features, ERMS)) - return OPTIMIZE1 (avx2_unaligned_erms_rtm); - - return OPTIMIZE1 (avx2_unaligned_rtm); - } - - if (!CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER)) - { - if (CPU_FEATURE_USABLE_P (cpu_features, ERMS)) - return OPTIMIZE1 (avx2_unaligned_erms); - - return OPTIMIZE1 (avx2_unaligned); - } - } - - if (CPU_FEATURE_USABLE_P (cpu_features, ERMS)) - return OPTIMIZE1 (sse2_unaligned_erms); - - return OPTIMIZE1 (sse2_unaligned); -} - -libc_ifunc_redirected (__redirect___bzero, __bzero, IFUNC_SELECTOR ()); - -weak_alias (__bzero, bzero) -#endif |