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
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
26signmask:
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
31othermask:
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
43ENTRY(__copysign)
44	andpd MO(othermask),%xmm0
45	andpd MO(signmask),%xmm1
46	orpd %xmm1,%xmm0
47	ret
48END (__copysign)
49
50libm_alias_double (__copysign, copysign)
51