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9359218f | 1 | /* copy sign, double version. |
04277e02 | 2 | Copyright (C) 2002-2019 Free Software Foundation, Inc. |
9359218f AJ |
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 | |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
9359218f AJ |
19 | |
20 | #include <machine/asm.h> | |
34bb10aa | 21 | #include <libm-alias-float.h> |
9359218f | 22 | |
83a5fcc0 | 23 | .section .rodata |
83a5fcc0 AJ |
24 | |
25 | .align ALIGNARG(4) | |
b67e9372 | 26 | .type mask,@object |
83a5fcc0 AJ |
27 | mask: |
28 | .byte 0xff, 0xff, 0xff, 0x7f | |
29 | ASM_SIZE_DIRECTIVE(mask) | |
30 | ||
31 | #ifdef PIC | |
32 | #define MO(op) op##(%rip) | |
33 | #else | |
34 | #define MO(op) op | |
35 | #endif | |
dc818ad5 | 36 | |
11bf311e | 37 | .text |
9359218f | 38 | ENTRY(__copysignf) |
df3dceb1 | 39 | movss MO(mask),%xmm3 |
83a5fcc0 AJ |
40 | andps %xmm3,%xmm0 |
41 | andnps %xmm1,%xmm3 | |
42 | orps %xmm3,%xmm0 | |
9359218f AJ |
43 | retq |
44 | END (__copysignf) | |
45 | ||
34bb10aa | 46 | libm_alias_float (__copysign, copysign) |