2 Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
3 Contributed by Intel Corporation.
4 This file is part of the GNU C Library.
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.
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.
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/>. */
22 #include <init-arch.h>
24 #ifdef HAVE_AVX_SUPPORT
26 extern double __fma_sse2 (double x
, double y
, double z
) attribute_hidden
;
30 __fma_fma3 (double x
, double y
, double z
)
32 asm ("vfmadd213sd %3, %2, %0" : "=x" (x
) : "0" (x
), "x" (y
), "xm" (z
));
37 # ifdef HAVE_FMA4_SUPPORT
39 __fma_fma4 (double x
, double y
, double z
)
41 asm ("vfmaddsd %3, %2, %1, %0" : "=x" (x
) : "x" (x
), "xm" (y
), "xm" (z
));
47 # define __fma_fma4 ((void *) 0)
51 libm_ifunc (__fma
, HAS_FMA
52 ? __fma_fma3
: (HAS_FMA4
? __fma_fma4
: __fma_sse2
));
53 weak_alias (__fma
, fma
)
55 # define __fma __fma_sse2
58 #include <sysdeps/ieee754/dbl-64/s_fma.c>