diff options
Diffstat (limited to 'sysdeps/aarch64/fpu/fesetenv.c')
-rw-r--r-- | sysdeps/aarch64/fpu/fesetenv.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/sysdeps/aarch64/fpu/fesetenv.c b/sysdeps/aarch64/fpu/fesetenv.c deleted file mode 100644 index 9875188735..0000000000 --- a/sysdeps/aarch64/fpu/fesetenv.c +++ /dev/null @@ -1,78 +0,0 @@ -/* Copyright (C) 1997-2017 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> -#include <fpu_control.h> - -int -__fesetenv (const fenv_t *envp) -{ - fpu_control_t fpcr; - fpu_control_t fpcr_new; - fpu_control_t updated_fpcr; - fpu_fpsr_t fpsr; - fpu_fpsr_t fpsr_new; - - _FPU_GETCW (fpcr); - - if ((envp != FE_DFL_ENV) && (envp != FE_NOMASK_ENV)) - { - /* The new FPCR/FPSR are valid, so don't merge the reserved flags. */ - fpcr_new = envp->__fpcr; - - if (fpcr != fpcr_new) - _FPU_SETCW (fpcr_new); - - _FPU_SETFPSR (envp->__fpsr); - return 0; - } - - _FPU_GETFPSR (fpsr); - fpcr_new = fpcr & _FPU_RESERVED; - fpsr_new = fpsr & _FPU_FPSR_RESERVED; - - if (envp == FE_DFL_ENV) - { - fpcr_new |= _FPU_DEFAULT; - fpsr_new |= _FPU_FPSR_DEFAULT; - } - else - { - fpcr_new |= _FPU_FPCR_IEEE; - fpsr_new |= _FPU_FPSR_IEEE; - } - - _FPU_SETFPSR (fpsr_new); - - if (fpcr != fpcr_new) - { - _FPU_SETCW (fpcr_new); - - /* Trapping exceptions are optional in AArch64; the relevant enable - bits in FPCR are RES0 hence the absence of support can be detected - by reading back the FPCR and comparing with the required value. */ - _FPU_GETCW (updated_fpcr); - - return fpcr_new & ~updated_fpcr; - } - - return 0; -} -libm_hidden_def (__fesetenv) -weak_alias (__fesetenv, fesetenv) -libm_hidden_weak (fesetenv) |