1 #ifndef FMV_H 2 3 #if HAVE_FUNC_ATTRIBUTE_IFUNC 4 #if defined(__has_attribute) 5 #if __has_attribute(target_clones) 6 #if defined(__x86_64) 7 8 // see https://gcc.gnu.org/wiki/FunctionMultiVersioning 9 #define PF_TARGET_CLONES __attribute__((target_clones("avx","sse4.2","sse3","sse2","sse","default"))) 10 #define HAVE_PF_TARGET_CLONES 1 11 #endif 12 #endif 13 #endif 14 #endif 15 16 #ifndef PF_TARGET_CLONES 17 #define PF_TARGET_CLONES 18 #endif 19 20 #endif 21