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Release Cosmopolitan v3.6.0

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This release is an atomic upgrade to GCC 14.1.0 with C23 and C++23
This commit is contained in:
Justine Tunney 2024-07-23 03:16:17 -07:00
parent 62ace3623a
commit 5660ec4741
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GPG key ID: BE714B4575D6E328
1585 changed files with 117353 additions and 271644 deletions
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40
third_party/libcxx/__bit/countr.h vendored
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@ -6,6 +6,9 @@
//
//===----------------------------------------------------------------------===//
// TODO: __builtin_ctzg is available since Clang 19 and GCC 14. When support for older versions is dropped, we can
// refactor this code to exclusively use __builtin_ctzg.
#ifndef _LIBCPP___BIT_COUNTR_H
#define _LIBCPP___BIT_COUNTR_H
@ -23,22 +26,25 @@ _LIBCPP_PUSH_MACROS
_LIBCPP_BEGIN_NAMESPACE_STD
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_ctz(unsigned __x) _NOEXCEPT { return __builtin_ctz(__x); }
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR int __libcpp_ctz(unsigned __x) _NOEXCEPT {
return __builtin_ctz(__x);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_ctz(unsigned long __x) _NOEXCEPT { return __builtin_ctzl(__x); }
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR int __libcpp_ctz(unsigned long __x) _NOEXCEPT {
return __builtin_ctzl(__x);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_ctz(unsigned long long __x) _NOEXCEPT { return __builtin_ctzll(__x); }
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR int __libcpp_ctz(unsigned long long __x) _NOEXCEPT {
return __builtin_ctzll(__x);
}
#if _LIBCPP_STD_VER >= 20
template <__libcpp_unsigned_integer _Tp>
_LIBCPP_HIDE_FROM_ABI constexpr int countr_zero(_Tp __t) noexcept {
template <class _Tp>
_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 int __countr_zero(_Tp __t) _NOEXCEPT {
#if __has_builtin(__builtin_ctzg)
return __builtin_ctzg(__t, numeric_limits<_Tp>::digits);
#else // __has_builtin(__builtin_ctzg)
if (__t == 0)
return numeric_limits<_Tp>::digits;
if (sizeof(_Tp) <= sizeof(unsigned int))
return std::__libcpp_ctz(static_cast<unsigned int>(__t));
else if (sizeof(_Tp) <= sizeof(unsigned long))
@ -46,7 +52,7 @@ _LIBCPP_HIDE_FROM_ABI constexpr int countr_zero(_Tp __t) noexcept {
else if (sizeof(_Tp) <= sizeof(unsigned long long))
return std::__libcpp_ctz(static_cast<unsigned long long>(__t));
else {
int __ret = 0;
int __ret = 0;
const unsigned int __ulldigits = numeric_limits<unsigned long long>::digits;
while (static_cast<unsigned long long>(__t) == 0uLL) {
__ret += __ulldigits;
@ -54,10 +60,18 @@ _LIBCPP_HIDE_FROM_ABI constexpr int countr_zero(_Tp __t) noexcept {
}
return __ret + std::__libcpp_ctz(static_cast<unsigned long long>(__t));
}
#endif // __has_builtin(__builtin_ctzg)
}
#if _LIBCPP_STD_VER >= 20
template <__libcpp_unsigned_integer _Tp>
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr int countr_zero(_Tp __t) noexcept {
return std::__countr_zero(__t);
}
template <__libcpp_unsigned_integer _Tp>
_LIBCPP_HIDE_FROM_ABI constexpr int countr_one(_Tp __t) noexcept {
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr int countr_one(_Tp __t) noexcept {
return __t != numeric_limits<_Tp>::max() ? std::countr_zero(static_cast<_Tp>(~__t)) : numeric_limits<_Tp>::digits;
}