#include #include extern double __atan_sse2 (double); extern double __atan_avx (double); #ifdef HAVE_FMA4_SUPPORT extern double __atan_fma4 (double); #else # undef HAS_ARCH_FEATURE # define HAS_ARCH_FEATURE(feature) 0 # define __atan_fma4 ((void *) 0) #endif libm_ifunc (atan, (HAS_ARCH_FEATURE (FMA4_Usable) ? __atan_fma4 : HAS_ARCH_FEATURE (AVX_Usable) ? __atan_avx : __atan_sse2)); #define atan __atan_sse2 #include