Blame sysdeps/ia64/fpu/fclrexcpt.c

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/* Clear given exceptions in current floating-point environment.
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   Copyright (C) 1997-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999 and
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                  Jes Sorensen <Jes.Sorensen@cern.ch>, 2000
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#include <fenv.h>
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int
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feclearexcept (int excepts)
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{
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  fenv_t fpsr;
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  /* Get the current state.  */
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  __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
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  /* Clear the relevant bits.  */
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  fpsr &= ~(((fenv_t) ((excepts & FE_ALL_EXCEPT) << 13)));
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  /* Put the new state in effect.  */
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  __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory");
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  /* success */
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  return 0;
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}
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libm_hidden_def (feclearexcept)