diff options
Diffstat (limited to 'sysdeps/i386/fpu/feholdexcpt.c')
-rw-r--r-- | sysdeps/i386/fpu/feholdexcpt.c | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/sysdeps/i386/fpu/feholdexcpt.c b/sysdeps/i386/fpu/feholdexcpt.c deleted file mode 100644 index d327358913..0000000000 --- a/sysdeps/i386/fpu/feholdexcpt.c +++ /dev/null @@ -1,50 +0,0 @@ -/* Store current floating-point environment and clear exceptions. - Copyright (C) 1997-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - 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> -#include <unistd.h> -#include <ldsodefs.h> -#include <dl-procinfo.h> - -int -__feholdexcept (fenv_t *envp) -{ - /* Store the environment. Recall that fnstenv has a side effect of - masking all exceptions. Then clear all exceptions. */ - __asm__ volatile ("fnstenv %0; fnclex" : "=m" (*envp)); - - /* If the CPU supports SSE we set the MXCSR as well. */ - if (HAS_CPU_FEATURE (SSE)) - { - unsigned int xwork; - - /* Get the current control word. */ - __asm__ ("stmxcsr %0" : "=m" (envp->__eip)); - - /* Set all exceptions to non-stop and clear them. */ - xwork = (envp->__eip | 0x1f80) & ~0x3f; - - __asm__ ("ldmxcsr %0" : : "m" (*&xwork)); - } - - return 0; -} -libm_hidden_def (__feholdexcept) -weak_alias (__feholdexcept, feholdexcept) -libm_hidden_weak (feholdexcept) |