1 /* isnan(). PowerPC64/POWER8 version.
2 Copyright (C) 2014 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/>. */
20 #include <math_ldbl_opt.h>
22 #define MFVSRD_R3_V1 .byte 0x7c,0x23,0x00,0x66 /* mfvsrd r3,vs1 */
24 /* int [r3] __isnan([f1] x) */
26 EALIGN (__isnan, 4, 0)
30 clrldi r3,r3,1 /* r3 = r3 & 0x8000000000000000 */
31 rldicr r9,r9,32,31 /* r9 = (r9 << 32) & 0xffffffff */
37 /* It turns out that the 'double' version will also always work for
39 strong_alias (__isnan, __isnanf)
41 weak_alias (__isnanf, isnanf)
44 strong_alias (__isnan, __isnanl)
45 weak_alias (__isnan, isnanl)
49 # if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
50 compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
51 compat_symbol (libc, isnan, isnanl, GLIBC_2_0);