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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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95
third_party/libcxx/__bit/countl.h vendored
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@ -6,6 +6,9 @@
//
//===----------------------------------------------------------------------===//
// TODO: __builtin_clzg is available since Clang 19 and GCC 14. When support for older versions is dropped, we can
// refactor this code to exclusively use __builtin_clzg.
#ifndef _LIBCPP___BIT_COUNTL_H
#define _LIBCPP___BIT_COUNTL_H
@ -24,18 +27,23 @@ _LIBCPP_PUSH_MACROS
_LIBCPP_BEGIN_NAMESPACE_STD
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_clz(unsigned __x) _NOEXCEPT { return __builtin_clz(__x); }
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR int __libcpp_clz(unsigned __x) _NOEXCEPT {
return __builtin_clz(__x);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_clz(unsigned long __x) _NOEXCEPT { return __builtin_clzl(__x); }
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR int __libcpp_clz(unsigned long __x) _NOEXCEPT {
return __builtin_clzl(__x);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_clz(unsigned long long __x) _NOEXCEPT { return __builtin_clzll(__x); }
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR int __libcpp_clz(unsigned long long __x) _NOEXCEPT {
return __builtin_clzll(__x);
}
# ifndef _LIBCPP_HAS_NO_INT128
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_clz(__uint128_t __x) _NOEXCEPT {
#ifndef _LIBCPP_HAS_NO_INT128
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR int __libcpp_clz(__uint128_t __x) _NOEXCEPT {
# if __has_builtin(__builtin_clzg)
return __builtin_clzg(__x);
# else
// The function is written in this form due to C++ constexpr limitations.
// The algorithm:
// - Test whether any bit in the high 64-bits is set
@ -45,53 +53,54 @@ int __libcpp_clz(__uint128_t __x) _NOEXCEPT {
// - Any bits set:
// - The number of leading zeros of the input is the number of leading
// zeros in the high 64-bits.
return ((__x >> 64) == 0)
? (64 + __builtin_clzll(static_cast<unsigned long long>(__x)))
: __builtin_clzll(static_cast<unsigned long long>(__x >> 64));
return ((__x >> 64) == 0) ? (64 + __builtin_clzll(static_cast<unsigned long long>(__x)))
: __builtin_clzll(static_cast<unsigned long long>(__x >> 64));
# endif
}
# endif // _LIBCPP_HAS_NO_INT128
#endif // _LIBCPP_HAS_NO_INT128
template<class _Tp>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
int __countl_zero(_Tp __t) _NOEXCEPT
{
static_assert(__libcpp_is_unsigned_integer<_Tp>::value, "__countl_zero requires an unsigned integer type");
if (__t == 0)
return numeric_limits<_Tp>::digits;
template <class _Tp>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 int __countl_zero(_Tp __t) _NOEXCEPT {
static_assert(__libcpp_is_unsigned_integer<_Tp>::value, "__countl_zero requires an unsigned integer type");
#if __has_builtin(__builtin_clzg)
return __builtin_clzg(__t, numeric_limits<_Tp>::digits);
#else // __has_builtin(__builtin_clzg)
if (__t == 0)
return numeric_limits<_Tp>::digits;
if (sizeof(_Tp) <= sizeof(unsigned int))
return std::__libcpp_clz(static_cast<unsigned int>(__t))
- (numeric_limits<unsigned int>::digits - numeric_limits<_Tp>::digits);
else if (sizeof(_Tp) <= sizeof(unsigned long))
return std::__libcpp_clz(static_cast<unsigned long>(__t))
- (numeric_limits<unsigned long>::digits - numeric_limits<_Tp>::digits);
else if (sizeof(_Tp) <= sizeof(unsigned long long))
return std::__libcpp_clz(static_cast<unsigned long long>(__t))
- (numeric_limits<unsigned long long>::digits - numeric_limits<_Tp>::digits);
else
{
int __ret = 0;
int __iter = 0;
const unsigned int __ulldigits = numeric_limits<unsigned long long>::digits;
while (true) {
__t = std::__rotr(__t, __ulldigits);
if ((__iter = std::__countl_zero(static_cast<unsigned long long>(__t))) != __ulldigits)
break;
__ret += __iter;
}
return __ret + __iter;
if (sizeof(_Tp) <= sizeof(unsigned int))
return std::__libcpp_clz(static_cast<unsigned int>(__t)) -
(numeric_limits<unsigned int>::digits - numeric_limits<_Tp>::digits);
else if (sizeof(_Tp) <= sizeof(unsigned long))
return std::__libcpp_clz(static_cast<unsigned long>(__t)) -
(numeric_limits<unsigned long>::digits - numeric_limits<_Tp>::digits);
else if (sizeof(_Tp) <= sizeof(unsigned long long))
return std::__libcpp_clz(static_cast<unsigned long long>(__t)) -
(numeric_limits<unsigned long long>::digits - numeric_limits<_Tp>::digits);
else {
int __ret = 0;
int __iter = 0;
const unsigned int __ulldigits = numeric_limits<unsigned long long>::digits;
while (true) {
__t = std::__rotl(__t, __ulldigits);
if ((__iter = std::__countl_zero(static_cast<unsigned long long>(__t))) != __ulldigits)
break;
__ret += __iter;
}
return __ret + __iter;
}
#endif // __has_builtin(__builtin_clzg)
}
#if _LIBCPP_STD_VER >= 20
template <__libcpp_unsigned_integer _Tp>
_LIBCPP_HIDE_FROM_ABI constexpr int countl_zero(_Tp __t) noexcept {
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr int countl_zero(_Tp __t) noexcept {
return std::__countl_zero(__t);
}
template <__libcpp_unsigned_integer _Tp>
_LIBCPP_HIDE_FROM_ABI constexpr int countl_one(_Tp __t) noexcept {
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr int countl_one(_Tp __t) noexcept {
return __t != numeric_limits<_Tp>::max() ? std::countl_zero(static_cast<_Tp>(~__t)) : numeric_limits<_Tp>::digits;
}