1 /* Install given floating-point environment and raise exceptions. 2 Copyright (C) 1997-2021 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 <fenv.h> 20 21 int __feupdateenv(const fenv_t * envp)22__feupdateenv (const fenv_t *envp) 23 { 24 fenv_t fpsr; 25 26 27 /* Get the current exception state. */ 28 __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); 29 30 /* Install new environment. */ 31 __fesetenv (envp); 32 33 /* Raise the saved exceptions. */ 34 __feraiseexcept ((int) (fpsr >> 13) & FE_ALL_EXCEPT); 35 36 /* Success. */ 37 return 0; 38 } 39 libm_hidden_def (__feupdateenv) 40 weak_alias (__feupdateenv, feupdateenv) 41 libm_hidden_weak (feupdateenv) 42