1 | /* Test sinl for pseudo-zeros and unnormals for ldbl-96 (bug 25487). |
2 | Copyright (C) 2020-2022 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 <math.h> |
20 | #include <math_ldbl.h> |
21 | #include <stdint.h> |
22 | |
23 | static int |
24 | do_test (void) |
25 | { |
26 | for (int i = 0; i < 64; i++) |
27 | { |
28 | uint64_t sig = i == 63 ? 0 : 1ULL << i; |
29 | long double ld; |
30 | SET_LDOUBLE_WORDS (ld, 0x4141, |
31 | sig >> 32, sig & 0xffffffffULL); |
32 | /* The requirement is that no stack overflow occurs when the |
33 | pseudo-zero or unnormal goes through range reduction. */ |
34 | volatile long double ldr; |
35 | ldr = sinl (x: ld); |
36 | (void) ldr; |
37 | } |
38 | return 0; |
39 | } |
40 | |
41 | #include <support/test-driver.c> |
42 | |