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Upgrade to 2022-era LLVM LIBCXX

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Justine Tunney 2024-05-27 02:12:27 -07:00
parent 2f4ca71f26
commit 8e68384e15
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2078 changed files with 165657 additions and 65010 deletions
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90
third_party/libcxx/cstddef vendored
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@ -1,5 +1,5 @@
// -*- C++ -*-
//===--------------------------- cstddef ----------------------------------===//
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
@ -25,7 +25,7 @@ Types:
ptrdiff_t
size_t
max_align_t
max_align_t // C++11
nullptr_t
byte // C++17
@ -33,39 +33,45 @@ Types:
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/version"
#include "libc/isystem/stddef.h"
#include <__assert> // all public C++ headers provide the assertion handler
#include <__config>
#include <__type_traits/enable_if.h>
#include <__type_traits/integral_constant.h>
#include <__type_traits/is_integral.h>
#include <version>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#include <stddef.h>
#ifndef _LIBCPP_STDDEF_H
# error <cstddef> tried including <stddef.h> but didn't find libc++'s <stddef.h> header. \
This usually means that your header search paths are not configured properly. \
The header search paths should contain the C++ Standard Library headers before \
any C Standard Library, and you are probably using compiler flags that make that \
not be the case.
#endif
// Don't include our own <stddef.h>; we don't want to declare ::nullptr_t.
// #include_next <stddef.h>
#include "third_party/libcxx/__nullptr"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
using ::ptrdiff_t;
using ::size_t;
using ::nullptr_t;
using ::ptrdiff_t _LIBCPP_USING_IF_EXISTS;
using ::size_t _LIBCPP_USING_IF_EXISTS;
#if defined(__CLANG_MAX_ALIGN_T_DEFINED) || defined(_GCC_MAX_ALIGN_T) || \
defined(__DEFINED_max_align_t) || defined(__NetBSD__)
// Re-use the compiler's <stddef.h> max_align_t where possible.
using ::max_align_t;
#else
typedef long double max_align_t;
#if !defined(_LIBCPP_CXX03_LANG)
using ::max_align_t _LIBCPP_USING_IF_EXISTS;
#endif
_LIBCPP_END_NAMESPACE_STD
#if _LIBCPP_STD_VER > 14
#if _LIBCPP_STD_VER >= 17
namespace std // purposefully not versioned
{
enum class byte : unsigned char {};
constexpr byte operator| (byte __lhs, byte __rhs) noexcept
_LIBCPP_HIDE_FROM_ABI constexpr byte operator| (byte __lhs, byte __rhs) noexcept
{
return static_cast<byte>(
static_cast<unsigned char>(
@ -73,10 +79,10 @@ constexpr byte operator| (byte __lhs, byte __rhs) noexcept
));
}
constexpr byte& operator|=(byte& __lhs, byte __rhs) noexcept
_LIBCPP_HIDE_FROM_ABI constexpr byte& operator|=(byte& __lhs, byte __rhs) noexcept
{ return __lhs = __lhs | __rhs; }
constexpr byte operator& (byte __lhs, byte __rhs) noexcept
_LIBCPP_HIDE_FROM_ABI constexpr byte operator& (byte __lhs, byte __rhs) noexcept
{
return static_cast<byte>(
static_cast<unsigned char>(
@ -84,10 +90,10 @@ constexpr byte operator& (byte __lhs, byte __rhs) noexcept
));
}
constexpr byte& operator&=(byte& __lhs, byte __rhs) noexcept
_LIBCPP_HIDE_FROM_ABI constexpr byte& operator&=(byte& __lhs, byte __rhs) noexcept
{ return __lhs = __lhs & __rhs; }
constexpr byte operator^ (byte __lhs, byte __rhs) noexcept
_LIBCPP_HIDE_FROM_ABI constexpr byte operator^ (byte __lhs, byte __rhs) noexcept
{
return static_cast<byte>(
static_cast<unsigned char>(
@ -95,10 +101,10 @@ constexpr byte operator^ (byte __lhs, byte __rhs) noexcept
));
}
constexpr byte& operator^=(byte& __lhs, byte __rhs) noexcept
_LIBCPP_HIDE_FROM_ABI constexpr byte& operator^=(byte& __lhs, byte __rhs) noexcept
{ return __lhs = __lhs ^ __rhs; }
constexpr byte operator~ (byte __b) noexcept
_LIBCPP_HIDE_FROM_ABI constexpr byte operator~ (byte __b) noexcept
{
return static_cast<byte>(
static_cast<unsigned char>(
@ -106,9 +112,35 @@ constexpr byte operator~ (byte __b) noexcept
));
}
}
template <class _Tp>
using _EnableByteOverload = __enable_if_t<is_integral<_Tp>::value, byte>;
template <class _Integer>
_LIBCPP_HIDE_FROM_ABI constexpr _EnableByteOverload<_Integer> &
operator<<=(byte& __lhs, _Integer __shift) noexcept
{ return __lhs = __lhs << __shift; }
template <class _Integer>
_LIBCPP_HIDE_FROM_ABI constexpr _EnableByteOverload<_Integer>
operator<< (byte __lhs, _Integer __shift) noexcept
{ return static_cast<byte>(static_cast<unsigned char>(static_cast<unsigned int>(__lhs) << __shift)); }
template <class _Integer>
_LIBCPP_HIDE_FROM_ABI constexpr _EnableByteOverload<_Integer> &
operator>>=(byte& __lhs, _Integer __shift) noexcept
{ return __lhs = __lhs >> __shift; }
template <class _Integer>
_LIBCPP_HIDE_FROM_ABI constexpr _EnableByteOverload<_Integer>
operator>> (byte __lhs, _Integer __shift) noexcept
{ return static_cast<byte>(static_cast<unsigned char>(static_cast<unsigned int>(__lhs) >> __shift)); }
template <class _Integer, class = _EnableByteOverload<_Integer> >
_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr _Integer
to_integer(byte __b) noexcept { return static_cast<_Integer>(__b); }
} // namespace std
#include "third_party/libcxx/type_traits" // rest of byte
#endif
#endif // _LIBCPP_CSTDDEF
#endif // _LIBCPP_CSTDDEF