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-float.h>
21
22 .section .rodata
23
24 .align ALIGNARG(4)
25 .type mask,@object
26mask:
27 .byte 0xff, 0xff, 0xff, 0x7f
28 ASM_SIZE_DIRECTIVE(mask)
29
30#ifdef PIC
31#define MO(op) op##(%rip)
32#else
33#define MO(op) op
34#endif
35
36 .text
37ENTRY(__copysignf)
38 movss MO(mask),%xmm3
39 andps %xmm3,%xmm0
40 andnps %xmm1,%xmm3
41 orps %xmm3,%xmm0
42 retq
43END (__copysignf)
44
45libm_alias_float (__copysign, copysign)
46