| /* FMA version of fma. |
| Copyright (C) 2009-2014 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <config.h> |
| #include <math.h> |
| #include <init-arch.h> |
| |
| #ifdef HAVE_AVX_SUPPORT |
| |
| 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; |
| } |
| |
| |
| # ifdef HAVE_FMA4_SUPPORT |
| 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; |
| } |
| # else |
| # undef HAS_FMA4 |
| # define HAS_FMA4 0 |
| # define __fma_fma4 ((void *) 0) |
| # endif |
| |
| |
| libm_ifunc (__fma, HAS_FMA |
| ? __fma_fma3 : (HAS_FMA4 ? __fma_fma4 : __fma_sse2)); |
| weak_alias (__fma, fma) |
| |
| # define __fma __fma_sse2 |
| #endif |
| |
| #include <sysdeps/ieee754/dbl-64/s_fma.c> |
