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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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GPG key ID: BE714B4575D6E328
2078 changed files with 165657 additions and 65010 deletions
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96
third_party/libcxx/stdlib.h vendored
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@ -1,5 +1,5 @@
// -*- C++ -*-
//===--------------------------- stdlib.h ---------------------------------===//
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
@ -7,31 +7,17 @@
//
//===----------------------------------------------------------------------===//
#if defined(__need_malloc_and_calloc) || defined(_LIBCPP_STDLIB_INCLUDE_NEXT)
#include "libc/isystem/stdlib.h"
#if defined(__need_malloc_and_calloc)
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
# pragma GCC system_header
#endif
#if defined(_LIBCPP_STDLIB_INCLUDE_NEXT)
#undef _LIBCPP_STDLIB_INCLUDE_NEXT
#endif
#include_next <stdlib.h>
#elif !defined(_LIBCPP_STDLIB_H)
#define _LIBCPP_STDLIB_H
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#ifdef __cplusplus
#include "third_party/libcxx/math.h"
#endif // __cplusplus
/*
stdlib.h synopsis
@ -98,4 +84,78 @@ void *aligned_alloc(size_t alignment, size_t size); // C11
*/
#include <__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
# if __has_include_next(<stdlib.h>)
# include_next <stdlib.h>
# endif
#ifdef __cplusplus
extern "C++" {
// abs
#ifdef abs
# undef abs
#endif
#ifdef labs
# undef labs
#endif
#ifdef llabs
# undef llabs
#endif
// MSVCRT already has the correct prototype in <stdlib.h> if __cplusplus is defined
#if !defined(_LIBCPP_MSVCRT)
_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY long abs(long __x) _NOEXCEPT {
return __builtin_labs(__x);
}
_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY long long abs(long long __x) _NOEXCEPT {
return __builtin_llabs(__x);
}
#endif // !defined(_LIBCPP_MSVCRT)
_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY float abs(float __lcpp_x) _NOEXCEPT {
return __builtin_fabsf(__lcpp_x); // Use builtins to prevent needing math.h
}
_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY double abs(double __lcpp_x) _NOEXCEPT {
return __builtin_fabs(__lcpp_x);
}
_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY long double
abs(long double __lcpp_x) _NOEXCEPT {
return __builtin_fabsl(__lcpp_x);
}
// div
#ifdef div
# undef div
#endif
#ifdef ldiv
# undef ldiv
#endif
#ifdef lldiv
# undef lldiv
#endif
// MSVCRT already has the correct prototype in <stdlib.h> if __cplusplus is defined
#if !defined(_LIBCPP_MSVCRT)
inline _LIBCPP_INLINE_VISIBILITY ldiv_t div(long __x, long __y) _NOEXCEPT {
return ::ldiv(__x, __y);
}
#if !(defined(__FreeBSD__) && !defined(__LONG_LONG_SUPPORTED))
inline _LIBCPP_INLINE_VISIBILITY lldiv_t div(long long __x,
long long __y) _NOEXCEPT {
return ::lldiv(__x, __y);
}
#endif
#endif // _LIBCPP_MSVCRT
} // extern "C++"
#endif // __cplusplus
#endif // _LIBCPP_STDLIB_H