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77c1b069 | 1 | /* copysign(). PowerPC64/POWER6 version. |
04277e02 | 2 | Copyright (C) 2010-2019 Free Software Foundation, Inc. |
77c1b069 LM |
3 | Contributed by Luis Machado <luisgpm@br.ibm.com>. |
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 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
77c1b069 LM |
19 | |
20 | #include <sysdep.h> | |
21 | #include <math_ldbl_opt.h> | |
216933b2 | 22 | #include <libm-alias-float.h> |
d17542d2 | 23 | #include <libm-alias-double.h> |
77c1b069 LM |
24 | |
25 | /* double [f1] copysign (double [f1] x, double [f2] y); | |
26 | copysign(x,y) returns a value with the magnitude of x and | |
27 | with the sign bit of y. */ | |
28 | ||
29 | .section ".text" | |
30 | .type __copysign, @function | |
31 | .machine power6 | |
d5b41185 | 32 | ENTRY_TOCLESS (__copysign, 4) |
77c1b069 LM |
33 | CALL_MCOUNT 0 |
34 | fcpsgn fp1,fp2,fp1 | |
35 | blr | |
36 | END (__copysign) | |
37 | ||
38 | hidden_def (__copysign) | |
d17542d2 | 39 | libm_alias_double (__copysign, copysign) |
77c1b069 LM |
40 | |
41 | /* It turns out that the 'double' version will also always work for | |
42 | single-precision. */ | |
43 | strong_alias (__copysign, __copysignf) | |
44 | hidden_def (__copysignf) | |
216933b2 | 45 | libm_alias_float (__copysign, copysign) |
77c1b069 | 46 | |
d17542d2 | 47 | #if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0) |
77c1b069 | 48 | compat_symbol (libc, copysign, copysignl, GLIBC_2_0); |
77c1b069 | 49 | #endif |