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
40
41
42
43
44
45
46
47
48
49
50
51
|
/* FMA version of fmaf.
Copyright (C) 2009-2022 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/>. */
#define NO_MATH_REDIRECT
#include <config.h>
#include <math.h>
#include <init-arch.h>
#include <libm-alias-float.h>
extern float __fmaf_sse2 (float x, float y, float z) attribute_hidden;
static float
__fmaf_fma3 (float x, float y, float z)
{
asm ("vfmadd213ss %3, %2, %0" : "=x" (x) : "0" (x), "x" (y), "xm" (z));
return x;
}
static float
__fmaf_fma4 (float x, float y, float z)
{
asm ("vfmaddss %3, %2, %1, %0" : "=x" (x) : "x" (x), "x" (y), "x" (z));
return x;
}
libm_ifunc (__fmaf, CPU_FEATURE_USABLE (FMA)
? __fmaf_fma3 : (CPU_FEATURE_USABLE (FMA4)
? __fmaf_fma4 : __fmaf_sse2));
libm_alias_float (__fma, fma)
#define __fmaf __fmaf_sse2
#include <sysdeps/ieee754/dbl-64/s_fmaf.c>
|
