diff options
Diffstat (limited to 'sysdeps/x86_64/fpu/fclrexcpt.c')
-rw-r--r-- | sysdeps/x86_64/fpu/fclrexcpt.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/sysdeps/x86_64/fpu/fclrexcpt.c b/sysdeps/x86_64/fpu/fclrexcpt.c deleted file mode 100644 index 93bf0d341f..0000000000 --- a/sysdeps/x86_64/fpu/fclrexcpt.c +++ /dev/null @@ -1,52 +0,0 @@ -/* Clear given exceptions in current floating-point environment. - Copyright (C) 2001-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <fenv.h> - -int -feclearexcept (int excepts) -{ - fenv_t temp; - unsigned int mxcsr; - - /* Mask out unsupported bits/exceptions. */ - excepts &= FE_ALL_EXCEPT; - - /* Bah, we have to clear selected exceptions. Since there is no - `fldsw' instruction we have to do it the hard way. */ - __asm__ ("fnstenv %0" : "=m" (*&temp)); - - /* Clear the relevant bits. */ - temp.__status_word &= excepts ^ FE_ALL_EXCEPT; - - /* Put the new data in effect. */ - __asm__ ("fldenv %0" : : "m" (*&temp)); - - /* And the same procedure for SSE. */ - __asm__ ("stmxcsr %0" : "=m" (*&mxcsr)); - - /* Clear the relevant bits. */ - mxcsr &= ~excepts; - - /* And put them into effect. */ - __asm__ ("ldmxcsr %0" : : "m" (*&mxcsr)); - - /* Success. */ - return 0; -} -libm_hidden_def (feclearexcept) |