glibc/sysdeps/generic/math-use-builtins.h
Stefan Liebler 62560ee840 Use GCC builtins for ceil functions if desired.
This patch is using the corresponding GCC builtin for ceilf, ceil,
ceill and ceilf128 if the USE_FUNCTION_BUILTIN macros are defined to one
in math-use-builtins.h.

This is the case for s390 if build with at least --march=z196 --mzarch.
Otherwise the generic implementation is used.  The code of the generic
implementation is not changed.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2019-12-11 15:12:17 +01:00

45 lines
1.5 KiB
C

/* Using math gcc builtins instead of generic implementation. Generic version.
Copyright (C) 2019 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 MATH_USE_BUILTINS_H
#define MATH_USE_BUILTINS_H 1
/* Define these macros to 1 to use __builtin_xyz instead of the
generic implementation. */
#define USE_NEARBYINT_BUILTIN 0
#define USE_NEARBYINTF_BUILTIN 0
#define USE_NEARBYINTL_BUILTIN 0
#define USE_NEARBYINTF128_BUILTIN 0
#define USE_RINT_BUILTIN 0
#define USE_RINTF_BUILTIN 0
#define USE_RINTL_BUILTIN 0
#define USE_RINTF128_BUILTIN 0
#define USE_FLOOR_BUILTIN 0
#define USE_FLOORF_BUILTIN 0
#define USE_FLOORL_BUILTIN 0
#define USE_FLOORF128_BUILTIN 0
#define USE_CEIL_BUILTIN 0
#define USE_CEILF_BUILTIN 0
#define USE_CEILL_BUILTIN 0
#define USE_CEILF128_BUILTIN 0
#endif /* math-use-builtins.h */