1 /* Common definition for ifunc selections optimized with SSE2 and 2 SSSE3. 3 All versions must be listed in ifunc-impl-list.c. 4 Copyright (C) 2017-2022 Free Software Foundation, Inc. 5 This file is part of the GNU C Library. 6 7 The GNU C Library is free software; you can redistribute it and/or 8 modify it under the terms of the GNU Lesser General Public 9 License as published by the Free Software Foundation; either 10 version 2.1 of the License, or (at your option) any later version. 11 12 The GNU C Library is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 Lesser General Public License for more details. 16 17 You should have received a copy of the GNU Lesser General Public 18 License along with the GNU C Library; if not, see 19 <https://www.gnu.org/licenses/>. */ 20 21 #include <init-arch.h> 22 23 extern __typeof (REDIRECT_NAME) OPTIMIZE (ia32) attribute_hidden; 24 extern __typeof (REDIRECT_NAME) OPTIMIZE (sse2) attribute_hidden; 25 extern __typeof (REDIRECT_NAME) OPTIMIZE (ssse3) attribute_hidden; 26 27 static inline void * IFUNC_SELECTOR(void)28IFUNC_SELECTOR (void) 29 { 30 const struct cpu_features* cpu_features = __get_cpu_features (); 31 32 if (CPU_FEATURE_USABLE_P (cpu_features, SSE2) 33 && CPU_FEATURES_ARCH_P (cpu_features, Fast_Rep_String)) 34 return OPTIMIZE (sse2); 35 36 if (CPU_FEATURE_USABLE_P (cpu_features, SSSE3)) 37 return OPTIMIZE (ssse3); 38 39 return OPTIMIZE (ia32); 40 } 41