1 /* Multiple versions of logb.
2    Copyright (C) 2013-2022 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 #include <math.h>
20 #include <math_ldbl_opt.h>
21 #include <shlib-compat.h>
22 #include "init-arch.h"
23 #include <libm-alias-double.h>
24 
25 extern __typeof (__logb) __logb_ppc64 attribute_hidden;
26 extern __typeof (__logb) __logb_power7 attribute_hidden;
27 
28 libc_ifunc (__logb,
29 	    (hwcap & PPC_FEATURE_ARCH_2_06)
30 	    ? __logb_power7
31             : __logb_ppc64);
32 
33 libm_alias_double (__logb, logb)
34