1/* FMA version of fmaf.
2 Copyright (C) 2009-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <config.h>
20#include <math.h>
21#include <init-arch.h>
22#include <libm-alias-float.h>
23
24extern float __fmaf_sse2 (float x, float y, float z) attribute_hidden;
25
26
27static float
28__fmaf_fma3 (float x, float y, float z)
29{
30 asm ("vfmadd213ss %3, %2, %0" : "=x" (x) : "0" (x), "x" (y), "xm" (z));
31 return x;
32}
33
34
35static float
36__fmaf_fma4 (float x, float y, float z)
37{
38 asm ("vfmaddss %3, %2, %1, %0" : "=x" (x) : "x" (x), "x" (y), "x" (z));
39 return x;
40}
41
42
43libm_ifunc (__fmaf, CPU_FEATURE_USABLE (FMA)
44 ? __fmaf_fma3 : (CPU_FEATURE_USABLE (FMA4)
45 ? __fmaf_fma4 : __fmaf_sse2));
46libm_alias_float (__fma, fma)
47
48#define __fmaf __fmaf_sse2
49
50#include <sysdeps/ieee754/dbl-64/s_fmaf.c>
51