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f818afdd3b
This patch is always using the corresponding GCC builtin for copysignf, copysign, and is using the builtin for copysignl, copysignf128 if the USE_FUNCTION_BUILTIN macros are defined to one in math-use-builtins.h. Altough the long double version is enabled by default we still need the macro and the alternative implementation as the _Float128 version of the builtin is not available with all supported GCC versions. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/* Using math gcc builtins instead of generic implementation. Generic version.
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Copyright (C) 2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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<https://www.gnu.org/licenses/>. */
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#ifndef MATH_USE_BUILTINS_H
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#define MATH_USE_BUILTINS_H 1
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#include <features.h> /* For __GNUC_PREREQ. */
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/* Define these macros to 1 to use __builtin_xyz instead of the
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generic implementation. */
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#define USE_NEARBYINT_BUILTIN 0
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#define USE_NEARBYINTF_BUILTIN 0
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#define USE_NEARBYINTL_BUILTIN 0
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#define USE_NEARBYINTF128_BUILTIN 0
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#define USE_RINT_BUILTIN 0
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#define USE_RINTF_BUILTIN 0
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#define USE_RINTL_BUILTIN 0
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#define USE_RINTF128_BUILTIN 0
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#define USE_FLOOR_BUILTIN 0
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#define USE_FLOORF_BUILTIN 0
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#define USE_FLOORL_BUILTIN 0
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#define USE_FLOORF128_BUILTIN 0
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#define USE_CEIL_BUILTIN 0
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#define USE_CEILF_BUILTIN 0
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#define USE_CEILL_BUILTIN 0
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#define USE_CEILF128_BUILTIN 0
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#define USE_TRUNC_BUILTIN 0
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#define USE_TRUNCF_BUILTIN 0
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#define USE_TRUNCL_BUILTIN 0
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#define USE_TRUNCF128_BUILTIN 0
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#define USE_ROUND_BUILTIN 0
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#define USE_ROUNDF_BUILTIN 0
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#define USE_ROUNDL_BUILTIN 0
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#define USE_ROUNDF128_BUILTIN 0
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#define USE_COPYSIGNL_BUILTIN 1
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#if __GNUC_PREREQ (7, 0)
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# define USE_COPYSIGNF128_BUILTIN 1
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#else
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# define USE_COPYSIGNF128_BUILTIN 0
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#endif
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#endif /* math-use-builtins.h */
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