1/* Copyright (C) 2008-2022 Free Software Foundation, Inc.
2
3This file is part of GCC.
4
5GCC is free software; you can redistribute it and/or modify it under
6the terms of the GNU General Public License as published by the Free
7Software Foundation; either version 3, or (at your option) any later
8version.
9
10GCC is distributed in the hope that it will be useful, but WITHOUT ANY
11WARRANTY; without even the implied warranty of MERCHANTABILITY or
12FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13for more details.
14
15Under Section 7 of GPL version 3, you are granted additional
16permissions described in the GCC Runtime Library Exception, version
173.1, as published by the Free Software Foundation.
18
19You should have received a copy of the GNU General Public License and
20a copy of the GCC Runtime Library Exception along with this program;
21see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
22<http://www.gnu.org/licenses/>.  */
23
24union _FP_UNION_Q
25{
26   __float128 flt;
27   struct
28   {
29      unsigned long frac0 : 64;
30      unsigned long frac1 : 48;
31      unsigned exp : 15;
32      unsigned sign : 1;
33   } bits __attribute__((packed));
34};
35
36__float128 __copysigntf3 (__float128, __float128);
37__float128 __fabstf2 (__float128);
38int __signbittf2 (__float128);
39
40__float128
41__copysigntf3 (__float128 a, __float128 b)
42{
43  union _FP_UNION_Q A, B;
44
45  A.flt = a;
46  B.flt = b;
47  A.bits.sign = B.bits.sign;
48
49  return A.flt;
50}
51
52__float128
53__fabstf2 (__float128 a)
54{
55  union _FP_UNION_Q A;
56
57  A.flt = a;
58  A.bits.sign = 0;
59
60  return A.flt;
61}
62
63int
64__signbittf2 (__float128 a)
65{
66  union _FP_UNION_Q A;
67
68  A.flt = a;
69
70  return A.bits.sign;
71}
72