/* FMA version of fma. Copyright (C) 2009-2016 Free Software Foundation, Inc. Contributed by Intel Corporation. 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 . */ #include #include #include extern double __fma_sse2 (double x, double y, double z) attribute_hidden; static double __fma_fma3 (double x, double y, double z) { asm ("vfmadd213sd %3, %2, %0" : "=x" (x) : "0" (x), "x" (y), "xm" (z)); return x; } static double __fma_fma4 (double x, double y, double z) { asm ("vfmaddsd %3, %2, %1, %0" : "=x" (x) : "x" (x), "x" (y), "x" (z)); return x; } libm_ifunc (__fma, HAS_ARCH_FEATURE (FMA_Usable) ? __fma_fma3 : (HAS_ARCH_FEATURE (FMA4_Usable) ? __fma_fma4 : __fma_sse2)); weak_alias (__fma, fma) #define __fma __fma_sse2 #include