1/* Test for NaN
2   Copyright (C) 2000-2022 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4
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.
9
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.
14
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   <https://www.gnu.org/licenses/>.  */
18
19/*
20 * isnan(x) returns 1 is x is nan, else 0;
21 */
22
23#include <sysdep.h>
24#undef ret
25
26ENTRY (__isnan)
27{
28.mfi
29	fclass.m p6, p7 = farg0, @nat | @qnan | @snan
30	;;
31}
32{
33.mib
34(p6)	mov ret0 = 1
35(p7)	mov ret0 = 0
36	br.ret.sptk.many rp
37}
38END (__isnan)
39
40strong_alias (__isnan, __isnanf)
41strong_alias (__isnan, __isnanl)
42
43weak_alias (__isnan, isnan)
44weak_alias (__isnanf, isnanf)
45weak_alias (__isnanl, isnanl)
46
47hidden_def (__isnan)
48hidden_def (__isnanf)
49hidden_def (__isnanl)
50