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91a1f3fe JM |
1 | /* Store current floating-point environment and clear exceptions for |
2 | atomic compound assignment. | |
bfff8b1b | 3 | Copyright (C) 2013-2017 Free Software Foundation, Inc. |
91a1f3fe JM |
4 | This file is part of the GNU C Library. |
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 | |
17 | License along with the GNU C Library. If not, see | |
18 | <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "soft-fp.h" | |
21 | #include "soft-supp.h" | |
22 | ||
23 | void | |
24 | __atomic_feholdexcept (fenv_t *envp) | |
25 | { | |
26 | fenv_union_t u; | |
27 | ||
28 | u.l[0] = __sim_exceptions_thread; | |
29 | /* The rounding mode is not changed by arithmetic, so no need to | |
30 | save it. */ | |
31 | u.l[1] = __sim_disabled_exceptions_thread; | |
32 | *envp = u.fenv; | |
33 | ||
34 | /* This function postdates the global variables being turned into | |
35 | compat symbols, so no need to set them. */ | |
36 | __sim_exceptions_thread = 0; | |
37 | __sim_disabled_exceptions_thread = FE_ALL_EXCEPT; | |
38 | } |