1 /* FMA version of fmaf.
2 Copyright (C) 2009-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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 <http://www.gnu.org/licenses/>. */
21 #include <init-arch.h>
23 extern float __fmaf_sse2 (float x
, float y
, float z
) attribute_hidden
;
27 __fmaf_fma3 (float x
, float y
, float z
)
29 asm ("vfmadd213ss %3, %2, %0" : "=x" (x
) : "0" (x
), "x" (y
), "xm" (z
));
35 __fmaf_fma4 (float x
, float y
, float z
)
37 asm ("vfmaddss %3, %2, %1, %0" : "=x" (x
) : "x" (x
), "x" (y
), "x" (z
));
42 libm_ifunc (__fmaf
, HAS_ARCH_FEATURE (FMA_Usable
)
43 ? __fmaf_fma3
: (HAS_ARCH_FEATURE (FMA4_Usable
)
44 ? __fmaf_fma4
: __fmaf_sse2
));
45 weak_alias (__fmaf
, fmaf
)
47 #define __fmaf __fmaf_sse2
49 #include <sysdeps/ieee754/dbl-64/s_fmaf.c>