1/* FMA version of fma.
2 Copyright (C) 2009-2016 Free Software Foundation, Inc.
3 Contributed by Intel Corporation.
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 <http://www.gnu.org/licenses/>. */
19
20#include <config.h>
21#include <math.h>
22#include <init-arch.h>
23
24extern double __fma_sse2 (double x, double y, double z) attribute_hidden;
25
26
27static double
28__fma_fma3 (double x, double y, double z)
29{
30 asm ("vfmadd213sd %3, %2, %0" : "=x" (x) : "0" (x), "x" (y), "xm" (z));
31 return x;
32}
33
34
35static double
36__fma_fma4 (double x, double y, double z)
37{
38 asm ("vfmaddsd %3, %2, %1, %0" : "=x" (x) : "x" (x), "x" (y), "x" (z));
39 return x;
40}
41
42
43libm_ifunc (__fma, HAS_ARCH_FEATURE (FMA_Usable)
44 ? __fma_fma3 : (HAS_ARCH_FEATURE (FMA4_Usable)
45 ? __fma_fma4 : __fma_sse2));
46weak_alias (__fma, fma)
47
48#define __fma __fma_sse2
49
50#include <sysdeps/ieee754/dbl-64/s_fma.c>
51