1 | /* lrintf(). RISC-V version. |
2 | Copyright (C) 2017-2024 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 <math.h> |
20 | #include <libm-alias-float.h> |
21 | #include <stdint.h> |
22 | |
23 | #if __WORDSIZE == 64 |
24 | # define OP "fcvt.l.s" |
25 | #elif __WORDSIZE == 32 |
26 | # define OP "fcvt.w.s" |
27 | #else |
28 | # error Unsupported |
29 | #endif |
30 | |
31 | long int |
32 | __lrintf (float x) |
33 | { |
34 | long int res; |
35 | asm (OP "\t%0, %1" : "=r" (res) : "f" (x)); |
36 | return res; |
37 | } |
38 | |
39 | libm_alias_float (__lrint, lrint) |
40 | |