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44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* FMA version of fma.
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Copyright (C) 2009 Free Software Foundation, Inc.
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Contributed by Intel Corporation.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <config.h>
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#include <math.h>
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#include <init-arch.h>
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#ifdef HAVE_AVX_SUPPORT
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extern double __fma_sse2 (double x, double y, double z);
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double
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__fma_fma (double x, double y, double z)
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{
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asm ("vfmadd213sd %3, %2, %0" : "=x" (x) : "0" (x), "x" (y), "xm" (z));
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return x;
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}
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libm_ifunc (__fma, HAS_FMA ? __fma_fma : __fma_sse2);
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weak_alias (__fma, fma)
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# define __fma __fma_sse2
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#endif
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#include <math/s_fma.c>
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