1 /* Set default strchr impl based on ISA level. 2 Copyright (C) 2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <isa-level.h> 20 #if MINIMUM_X86_ISA_LEVEL == 1 || MINIMUM_X86_ISA_LEVEL == 2 21 # define DEFAULT_STRCHR __strchr_sse2 22 #elif MINIMUM_X86_ISA_LEVEL == 3 23 # define DEFAULT_STRCHR __strchr_avx2 24 #elif MINIMUM_X86_ISA_LEVEL == 4 25 # define DEFAULT_STRCHR __strchr_evex 26 #else 27 # error "Unknown default strchr implementation" 28 #endif 29