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/* Compute maximum of two numbers, regarding NaN as missing argument.
Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 2002.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
.text
ENTRY(__fmax)
ucomisd %xmm0, %xmm1
jp 1f // jump if unordered
maxsd %xmm1, %xmm0
jmp 2f
1: ucomisd %xmm1, %xmm1 // Is xmm1 a NaN?
jp 2f // then return xmm0
movsd %xmm1, %xmm0 // otherwise return xmm1
2: ret
END(__fmax)
weak_alias (__fmax, fmax)
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