glibc/sysdeps/i386/fpu/s_f32xmulf64.c
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30 lines
1.2 KiB
C

/* Multiply _Float64 values, converting the result to _Float32x. i386 version.
Copyright (C) 2018-2019 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
<http://www.gnu.org/licenses/>. */
#include <math.h>
#include <math-narrow.h>
_Float32x
__f32xmulf64 (_Float64 x, _Float64 y)
{
/* To avoid double rounding, use round-to-odd on long double. */
NARROW_MUL_ROUND_TO_ODD ((long double) x, (long double) y, double,
union ieee854_long_double, l, mantissa1);
}
libm_alias_float32x_float64 (mul)