]>
Commit | Line | Data |
---|---|---|
f964490f RM |
1 | /* Copy a sign bit between floating-point values. |
2 | IBM extended format long double version. | |
581c785b | 3 | Copyright (C) 2004-2022 Free Software Foundation, Inc. |
f964490f RM |
4 | This file is part of the GNU C Library. |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
f964490f RM |
19 | |
20 | #include <sysdep.h> | |
21 | #include <math_ldbl_opt.h> | |
22 | ||
d5b41185 | 23 | ENTRY_TOCLESS (__copysignl) |
f964490f RM |
24 | /* long double [f1,f2] copysign (long double [f1,f2] x, long double [f3,f4] y); |
25 | copysign(x,y) returns a value with the magnitude of x and | |
26 | with the sign bit of y. */ | |
27 | stfd fp3,-16(r1) | |
28 | ld r3,-16(r1) | |
29 | cmpdi r3,0 | |
30 | blt L(0) | |
31 | fmr fp0,fp1 | |
32 | fabs fp1,fp1 | |
05f3ed0a JM |
33 | fneg fp3,fp2 |
34 | fsel fp2,fp0,fp2,fp3 | |
f964490f RM |
35 | blr |
36 | L(0): | |
37 | fmr fp0,fp1 | |
38 | fnabs fp1,fp1 | |
05f3ed0a JM |
39 | fneg fp3,fp2 |
40 | fsel fp2,fp0,fp3,fp2 | |
f964490f RM |
41 | blr |
42 | END (__copysignl) | |
43 | ||
a109996e | 44 | #if IS_IN (libm) |
f964490f RM |
45 | long_double_symbol (libm, __copysignl, copysignl) |
46 | #else | |
47 | long_double_symbol (libc, __copysignl, copysignl) | |
48 | #endif |