1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
/* Fused multiply-add of _Float128 value, converting the result to _Float64x.
Copyright (C) 2021-2023 Free Software Foundation, Inc.
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
<https://www.gnu.org/licenses/>. */
#include <math.h>
#include <math-narrow.h>
#include <tininess.h>
/* math_ldbl.h defines _Float128 to long double for this directory,
but when they are different, this function must be defined with
_Float128 arguments to avoid defining an alias with an incompatible
type. */
#undef _Float128
#if __HAVE_FLOAT64X_LONG_DOUBLE && __HAVE_DISTINCT_FLOAT128
_Float64x
__f64xfmaf128 (_Float128 x, _Float128 y, _Float128 z)
{
NARROW_FMA_ROUND_TO_ODD (x, y, z, _Float64x, union ieee854_long_double, l,
mantissa3, TININESS_AFTER_ROUNDING);
}
libm_alias_float64x_float128 (fma)
#else
/* Defined as an alias of fmal. */
#endif
|
