1  /* Fused multiply-add of long double (ldbl-128) value, narrowing the result
       2     to double.
       3     Copyright (C) 2021-2023 Free Software Foundation, Inc.
       4     This file is part of the GNU C Library.
       5  
       6     The GNU C Library is free software; you can redistribute it and/or
       7     modify it under the terms of the GNU Lesser General Public
       8     License as published by the Free Software Foundation; either
       9     version 2.1 of the License, or (at your option) any later version.
      10  
      11     The GNU C Library is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14     Lesser General Public License for more details.
      15  
      16     You should have received a copy of the GNU Lesser General Public
      17     License along with the GNU C Library; if not, see
      18     <https://www.gnu.org/licenses/>.  */
      19  
      20  #define f32xfmaf64x __hide_f32xfmaf64x
      21  #define f32xfmaf128 __hide_f32xfmaf128
      22  #define f64fmaf64x __hide_f64fmaf64x
      23  #define f64fmaf128 __hide_f64fmaf128
      24  #include <math.h>
      25  #undef f32xfmaf64x
      26  #undef f32xfmaf128
      27  #undef f64fmaf64x
      28  #undef f64fmaf128
      29  
      30  #include <math-narrow.h>
      31  
      32  double
      33  __dfmal (_Float128 x, _Float128 y, _Float128 z)
      34  {
      35    NARROW_FMA_ROUND_TO_ODD (x, y, z, double, union ieee854_long_double, l,
      36  			   mantissa3, false);
      37  }
      38  libm_alias_double_ldouble (fma)