1 | /* copy sign, double version. |
2 | Copyright (C) 2002-2022 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 <machine/asm.h> |
20 | #include <libm-alias-double.h> |
21 | |
22 | .section .rodata.cst16,"aM" ,@progbits,16 |
23 | |
24 | .align ALIGNARG(4) |
25 | .type signmask,@object |
26 | signmask: |
27 | .byte 0, 0, 0, 0, 0, 0, 0, 0x80 |
28 | .byte 0, 0, 0, 0, 0, 0, 0, 0 |
29 | ASM_SIZE_DIRECTIVE(signmask) |
30 | .type othermask,@object |
31 | othermask: |
32 | .byte 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f |
33 | .byte 0, 0, 0, 0, 0, 0, 0, 0 |
34 | ASM_SIZE_DIRECTIVE(othermask) |
35 | |
36 | #ifdef PIC |
37 | #define MO(op) op##(%rip) |
38 | #else |
39 | #define MO(op) op |
40 | #endif |
41 | |
42 | .text |
43 | ENTRY(__copysign) |
44 | andpd MO(othermask),%xmm0 |
45 | andpd MO(signmask),%xmm1 |
46 | orpd %xmm1,%xmm0 |
47 | ret |
48 | END (__copysign) |
49 | |
50 | libm_alias_double (__copysign, copysign) |
51 | |