| /* Test for NaN |
| Copyright (C) 2000-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Jes Sorensen <jes@linuxcare.com>, October 2000. |
| |
| 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/>. */ |
| |
| /* |
| * isnan(x) returns 1 is x is nan, else 0; |
| */ |
| |
| #include <sysdep.h> |
| #undef ret |
| |
| ENTRY (__isnan) |
| { |
| .mfi |
| fclass.m p6, p7 = farg0, @nat | @qnan | @snan |
| ;; |
| } |
| { |
| .mib |
| (p6) mov ret0 = 1 |
| (p7) mov ret0 = 0 |
| br.ret.sptk.many rp |
| } |
| END (__isnan) |
| |
| strong_alias (__isnan, __isnanf) |
| strong_alias (__isnan, __isnanl) |
| |
| weak_alias (__isnan, isnan) |
| weak_alias (__isnanf, isnanf) |
| weak_alias (__isnanl, isnanl) |
| |
| hidden_def (__isnan) |
| hidden_def (__isnanf) |
| hidden_def (__isnanl) |
