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Diffstat (limited to 'sysdeps/arc/get-rounding-mode.h')
-rw-r--r-- | sysdeps/arc/get-rounding-mode.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sysdeps/arc/get-rounding-mode.h b/sysdeps/arc/get-rounding-mode.h new file mode 100644 index 0000000000..15173e37aa --- /dev/null +++ b/sysdeps/arc/get-rounding-mode.h @@ -0,0 +1,38 @@ +/* Determine floating-point rounding mode within libc. ARC version. + Copyright (C) 2020 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 + <https://www.gnu.org/licenses/>. */ + +#ifndef _ARC_GET_ROUNDING_MODE_H +#define _ARC_GET_ROUNDING_MODE_H 1 + +#include <fenv.h> +#include <fpu_control.h> + +static inline int +get_rounding_mode (void) +{ +#if defined(__ARC_FPU_SP__) || defined(__ARC_FPU_DP__) + unsigned int fpcr; + _FPU_GETCW (fpcr); + + return (fpcr >> __FPU_RND_SHIFT) & __FPU_RND_MASK; +#else + return FE_TONEAREST; +#endif +} + +#endif /* get-rounding-mode.h */ |