1/* copy sign, double version.
2 Copyright (C) 2002-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Andreas Jaeger <aj@suse.de>, 2002.
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
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20#include <machine/asm.h>
21#include <libm-alias-double.h>
22
23 .section .rodata.cst16,"aM",@progbits,16
24
25 .align ALIGNARG(4)
26 .type signmask,@object
27signmask:
28 .byte 0, 0, 0, 0, 0, 0, 0, 0x80
29 .byte 0, 0, 0, 0, 0, 0, 0, 0
30 ASM_SIZE_DIRECTIVE(signmask)
31 .type othermask,@object
32othermask:
33 .byte 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
34 .byte 0, 0, 0, 0, 0, 0, 0, 0
35 ASM_SIZE_DIRECTIVE(othermask)
36
37#ifdef PIC
38#define MO(op) op##(%rip)
39#else
40#define MO(op) op
41#endif
42
43 .text
44ENTRY(__copysign)
45 andpd MO(othermask),%xmm0
46 andpd MO(signmask),%xmm1
47 orpd %xmm1,%xmm0
48 ret
49END (__copysign)
50
51libm_alias_double (__copysign, copysign)
52