1 files changed, 245 insertions, 0 deletions
diff --git a/contrib/llvm-project/libcxx/include/__math/rounding_functions.h b/contrib/llvm-project/libcxx/include/__math/rounding_functions.h
new file mode 100644
index 000000000000..29e42fd80b00
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__math/rounding_functions.h
@@ -0,0 +1,245 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___MATH_ROUNDING_FUNCTIONS_H
+#define _LIBCPP___MATH_ROUNDING_FUNCTIONS_H
+
+#include <__config>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/is_arithmetic.h>
+#include <__type_traits/is_integral.h>
+#include <__type_traits/is_same.h>
+#include <__type_traits/promote.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#  pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace __math {
+
+// ceil
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float ceil(float __x) _NOEXCEPT { return __builtin_ceilf(__x); }
+
+template <class = int>
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double ceil(double __x) _NOEXCEPT {
+  return __builtin_ceil(__x);
+}
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI long double ceil(long double __x) _NOEXCEPT {
+  return __builtin_ceill(__x);
+}
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI double ceil(_A1 __x) _NOEXCEPT {
+  return __builtin_ceil((double)__x);
+}
+
+// floor
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float floor(float __x) _NOEXCEPT { return __builtin_floorf(__x); }
+
+template <class = int>
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double floor(double __x) _NOEXCEPT {
+  return __builtin_floor(__x);
+}
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI long double floor(long double __x) _NOEXCEPT {
+  return __builtin_floorl(__x);
+}
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI double floor(_A1 __x) _NOEXCEPT {
+  return __builtin_floor((double)__x);
+}
+
+// llrint
+
+inline _LIBCPP_HIDE_FROM_ABI long long llrint(float __x) _NOEXCEPT { return __builtin_llrintf(__x); }
+
+template <class = int>
+_LIBCPP_HIDE_FROM_ABI long long llrint(double __x) _NOEXCEPT {
+  return __builtin_llrint(__x);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI long long llrint(long double __x) _NOEXCEPT { return __builtin_llrintl(__x); }
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+inline _LIBCPP_HIDE_FROM_ABI long long llrint(_A1 __x) _NOEXCEPT {
+  return __builtin_llrint((double)__x);
+}
+
+// llround
+
+inline _LIBCPP_HIDE_FROM_ABI long long llround(float __x) _NOEXCEPT { return __builtin_llroundf(__x); }
+
+template <class = int>
+_LIBCPP_HIDE_FROM_ABI long long llround(double __x) _NOEXCEPT {
+  return __builtin_llround(__x);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI long long llround(long double __x) _NOEXCEPT { return __builtin_llroundl(__x); }
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+inline _LIBCPP_HIDE_FROM_ABI long long llround(_A1 __x) _NOEXCEPT {
+  return __builtin_llround((double)__x);
+}
+
+// lrint
+
+inline _LIBCPP_HIDE_FROM_ABI long lrint(float __x) _NOEXCEPT { return __builtin_lrintf(__x); }
+
+template <class = int>
+_LIBCPP_HIDE_FROM_ABI long lrint(double __x) _NOEXCEPT {
+  return __builtin_lrint(__x);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI long lrint(long double __x) _NOEXCEPT { return __builtin_lrintl(__x); }
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+inline _LIBCPP_HIDE_FROM_ABI long lrint(_A1 __x) _NOEXCEPT {
+  return __builtin_lrint((double)__x);
+}
+
+// lround
+
+inline _LIBCPP_HIDE_FROM_ABI long lround(float __x) _NOEXCEPT { return __builtin_lroundf(__x); }
+
+template <class = int>
+_LIBCPP_HIDE_FROM_ABI long lround(double __x) _NOEXCEPT {
+  return __builtin_lround(__x);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI long lround(long double __x) _NOEXCEPT { return __builtin_lroundl(__x); }
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+inline _LIBCPP_HIDE_FROM_ABI long lround(_A1 __x) _NOEXCEPT {
+  return __builtin_lround((double)__x);
+}
+
+// nearbyint
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float nearbyint(float __x) _NOEXCEPT {
+  return __builtin_nearbyintf(__x);
+}
+
+template <class = int>
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double nearbyint(double __x) _NOEXCEPT {
+  return __builtin_nearbyint(__x);
+}
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI long double nearbyint(long double __x) _NOEXCEPT {
+  return __builtin_nearbyintl(__x);
+}
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI double nearbyint(_A1 __x) _NOEXCEPT {
+  return __builtin_nearbyint((double)__x);
+}
+
+// nextafter
+
+inline _LIBCPP_HIDE_FROM_ABI float nextafter(float __x, float __y) _NOEXCEPT { return __builtin_nextafterf(__x, __y); }
+
+template <class = int>
+_LIBCPP_HIDE_FROM_ABI double nextafter(double __x, double __y) _NOEXCEPT {
+  return __builtin_nextafter(__x, __y);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI long double nextafter(long double __x, long double __y) _NOEXCEPT {
+  return __builtin_nextafterl(__x, __y);
+}
+
+template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0>
+inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type nextafter(_A1 __x, _A2 __y) _NOEXCEPT {
+  using __result_type = typename __promote<_A1, _A2>::type;
+  static_assert((!(_IsSame<_A1, __result_type>::value && _IsSame<_A2, __result_type>::value)), "");
+  return __math::nextafter((__result_type)__x, (__result_type)__y);
+}
+
+// nexttoward
+
+inline _LIBCPP_HIDE_FROM_ABI float nexttoward(float __x, long double __y) _NOEXCEPT {
+  return __builtin_nexttowardf(__x, __y);
+}
+
+template <class = int>
+_LIBCPP_HIDE_FROM_ABI double nexttoward(double __x, long double __y) _NOEXCEPT {
+  return __builtin_nexttoward(__x, __y);
+}
+
+inline _LIBCPP_HIDE_FROM_ABI long double nexttoward(long double __x, long double __y) _NOEXCEPT {
+  return __builtin_nexttowardl(__x, __y);
+}
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+inline _LIBCPP_HIDE_FROM_ABI double nexttoward(_A1 __x, long double __y) _NOEXCEPT {
+  return __builtin_nexttoward((double)__x, __y);
+}
+
+// rint
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float rint(float __x) _NOEXCEPT { return __builtin_rintf(__x); }
+
+template <class = int>
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double rint(double __x) _NOEXCEPT {
+  return __builtin_rint(__x);
+}
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI long double rint(long double __x) _NOEXCEPT {
+  return __builtin_rintl(__x);
+}
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI double rint(_A1 __x) _NOEXCEPT {
+  return __builtin_rint((double)__x);
+}
+
+// round
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float round(float __x) _NOEXCEPT { return __builtin_round(__x); }
+
+template <class = int>
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double round(double __x) _NOEXCEPT {
+  return __builtin_round(__x);
+}
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI long double round(long double __x) _NOEXCEPT {
+  return __builtin_roundl(__x);
+}
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI double round(_A1 __x) _NOEXCEPT {
+  return __builtin_round((double)__x);
+}
+
+// trunc
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI float trunc(float __x) _NOEXCEPT { return __builtin_trunc(__x); }
+
+template <class = int>
+_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI double trunc(double __x) _NOEXCEPT {
+  return __builtin_trunc(__x);
+}
+
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI long double trunc(long double __x) _NOEXCEPT {
+  return __builtin_truncl(__x);
+}
+
+template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI double trunc(_A1 __x) _NOEXCEPT {
+  return __builtin_trunc((double)__x);
+}
+
+} // namespace __math
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP___MATH_ROUNDING_FUNCTIONS_H