Update libc++ to LLVM 14 (#17000)

No major conflicts or changes required.

Author: sbc100

ChangeLog.md

@@ -26,7 +26,8 @@ See docs/process.md for more on how version tagging works.
   wide under `wasm64`. (#16938)
 - The `EM_BUILD_VERBOSE` environment variable only effects test code these days
   and therefore was renamed to `EMTEST_BUILD_VERBOSE`. (#16904)
-- compiler-rt code updated to LLVM 14. (#16991)
+- compiler-rt updated to LLVM 14. (#16991)
+- libc++ updated to LLVM 14. (#17000)
 
 3.1.10 - 05/02/2022
 -------------------

system/lib/libcxx/CREDITS.TXT

@@ -12,6 +12,13 @@ N: Saleem Abdulrasool
 E: [email protected]
 D: Minor patches and Linux fixes.
 
+N: Ulf Adams
+D: Invented the Ryu and Ryu Printf algorithms used in floating-point to_chars, and wrote the initial code.
+
+N: Muiez Ahmed
+E: [email protected]
+D: z/OS port.
+
 N: Dan Albert
 E: [email protected]
 D: Android support and test runner improvements.
@@ -24,9 +31,8 @@ N: Holger Arnold
 E: [email protected]
 D: Minor fix.
 
-N: Ruben Van Boxem
-E: vanboxem dot ruben at gmail dot com
-D: Initial Windows patches.
+N: Jorg Brown
+D: Ported floating-point to_chars from MSVC to libc++.
 
 N: David Chisnall
 E: theraven at theravensnest dot org
@@ -41,6 +47,10 @@ N: Jonathan B Coe
 E: [email protected]
 D: Implementation of propagate_const.
 
+N: Matthew Dempsky
+E: [email protected]
+D: Minor patches and bug fixes.
+
 N: Christopher Di Bella
 E: [email protected]
 E: [email protected]
@@ -58,10 +68,6 @@ N: Bill Fisher
 E: [email protected]
 D: Regex bug fixes.
 
-N: Matthew Dempsky
-E: [email protected]
-D: Minor patches and bug fixes.
-
 N: Google Inc.
 D: Copyright owner and contributor of the CityHash algorithm
 
@@ -81,6 +87,14 @@ N: Argyrios Kyrtzidis
 E: [email protected]
 D: Bug fixes.
 
+N: Stephan T. Lavavej
+E: [email protected]
+E: [email protected]
+D: Implemented floating-point to_chars.
+
+N: Microsoft Corporation
+D: Contributed floating-point to_chars.
+
 N: Bruce Mitchener, Jr.
 E: [email protected]
 D: Emscripten-related changes.
@@ -113,6 +127,10 @@ N: Jon Roelofs
 E: [email protected]
 D: Remote testing, Newlib port, baremetal/single-threaded support.
 
+N: Kent Ross
+E: [email protected]
+D: Patches for operator<=> support
+
 N: Jonathan Sauer
 D: Minor patches, mostly related to constexpr
 
@@ -131,6 +149,10 @@ N: Stephan Tolksdorf
 E: [email protected]
 D: Minor <atomic> fix
 
+N: Ruben Van Boxem
+E: vanboxem dot ruben at gmail dot com
+D: Initial Windows patches.
+
 N: Michael van der Westhuizen
 E: r1mikey at gmail dot com
 
@@ -141,6 +163,11 @@ N: Klaas de Vries
 E: klaas at klaasgaaf dot nl
 D: Minor bug fix.
 
+N: Mark de Wever
+E: koraq at xs4all dot nl
+D: Format library support.
+D: Finalized the porting of MSVC's to_chars to libc++.
+
 N: Zhang Xiongpang
 E: [email protected]
 D: Minor patches and bug fixes.
@@ -149,11 +176,11 @@ N: Xing Xue
 E: [email protected]
 D: AIX port
 
-N: Zhihao Yuan
-E: [email protected]
-D: Standard compatibility fixes.
-
 N: Jeffrey Yasskin
 E: [email protected]
 E: [email protected]
 D: Linux fixes.
+
+N: Zhihao Yuan
+E: [email protected]
+D: Standard compatibility fixes.

system/lib/libcxx/include/__algorithm/adjacent_find.h

@@ -10,17 +10,14 @@
 #ifndef _LIBCPP___ALGORITHM_ADJACENT_FIND_H
 #define _LIBCPP___ALGORITHM_ADJACENT_FIND_H
 
-#include <__config>
 #include <__algorithm/comp.h>
+#include <__config>
 #include <__iterator/iterator_traits.h>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _ForwardIterator, class _BinaryPredicate>
@@ -46,6 +43,4 @@ adjacent_find(_ForwardIterator __first, _ForwardIterator __last) {
 
 _LIBCPP_END_NAMESPACE_STD
 
-_LIBCPP_POP_MACROS
-
 #endif // _LIBCPP___ALGORITHM_ADJACENT_FIND_H

system/lib/libcxx/include/__algorithm/all_of.h

@@ -16,9 +16,6 @@
 #pragma GCC system_header
 #endif
 
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Predicate>
@@ -32,6 +29,4 @@ all_of(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
 
 _LIBCPP_END_NAMESPACE_STD
 
-_LIBCPP_POP_MACROS
-
 #endif // _LIBCPP___ALGORITHM_ALL_OF_H

system/lib/libcxx/include/__algorithm/any_of.h

@@ -16,9 +16,6 @@
 #pragma GCC system_header
 #endif
 
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Predicate>
@@ -32,6 +29,4 @@ any_of(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
 
 _LIBCPP_END_NAMESPACE_STD
 
-_LIBCPP_POP_MACROS
-
 #endif // _LIBCPP___ALGORITHM_ANY_OF_H

system/lib/libcxx/include/__algorithm/binary_search.h

@@ -9,19 +9,16 @@
 #ifndef _LIBCPP___ALGORITHM_BINARY_SEARCH_H
 #define _LIBCPP___ALGORITHM_BINARY_SEARCH_H
 
-#include <__config>
 #include <__algorithm/comp.h>
-#include <__algorithm/lower_bound.h>
 #include <__algorithm/comp_ref_type.h>
+#include <__algorithm/lower_bound.h>
+#include <__config>
 #include <__iterator/iterator_traits.h>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _Compare, class _ForwardIterator, class _Tp>
@@ -53,9 +50,6 @@ binary_search(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __va
                              __less<typename iterator_traits<_ForwardIterator>::value_type, _Tp>());
 }
 
-
 _LIBCPP_END_NAMESPACE_STD
 
-_LIBCPP_POP_MACROS
-
 #endif // _LIBCPP___ALGORITHM_BINARY_SEARCH_H

system/lib/libcxx/include/__algorithm/clamp.h

@@ -9,21 +9,17 @@
 #ifndef _LIBCPP___ALGORITHM_CLAMP_H
 #define _LIBCPP___ALGORITHM_CLAMP_H
 
+#include <__algorithm/comp.h>
 #include <__config>
 #include <__debug>
-#include <__algorithm/comp.h>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 #if _LIBCPP_STD_VER > 14
-// clamp
 template<class _Tp, class _Compare>
 _LIBCPP_NODISCARD_EXT inline
 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
@@ -47,6 +43,4 @@ clamp(const _Tp& __v, const _Tp& __lo, const _Tp& __hi)
 
 _LIBCPP_END_NAMESPACE_STD
 
-_LIBCPP_POP_MACROS
-
 #endif // _LIBCPP___ALGORITHM_CLAMP_H

system/lib/libcxx/include/__algorithm/comp.h

@@ -15,9 +15,6 @@
 #pragma GCC system_header
 #endif
 
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 // I'd like to replace these with _VSTD::equal_to<void>, but can't because:
@@ -92,6 +89,4 @@ struct __less<_T1, const _T1>
 
 _LIBCPP_END_NAMESPACE_STD
 
-_LIBCPP_POP_MACROS
-
 #endif // _LIBCPP___ALGORITHM_COMP_H

system/lib/libcxx/include/__algorithm/comp_ref_type.h

@@ -10,15 +10,16 @@
 #define _LIBCPP___ALGORITHM_COMP_REF_TYPE_H
 
 #include <__config>
-#include <type_traits>
+
+#ifdef _LIBCPP_DEBUG
+#  include <__debug>
+#  include <__utility/declval.h>
+#endif
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
 #endif
 
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 #ifdef _LIBCPP_DEBUG
@@ -27,11 +28,11 @@ template <class _Compare>
 struct __debug_less
 {
     _Compare &__comp_;
-    _LIBCPP_CONSTEXPR_AFTER_CXX17
+    _LIBCPP_CONSTEXPR_AFTER_CXX11
     __debug_less(_Compare& __c) : __comp_(__c) {}
 
     template <class _Tp, class _Up>
-    _LIBCPP_CONSTEXPR_AFTER_CXX17
+    _LIBCPP_CONSTEXPR_AFTER_CXX11
     bool operator()(const _Tp& __x,  const _Up& __y)
     {
         bool __r = __comp_(__x, __y);
@@ -41,7 +42,7 @@ struct __debug_less
     }
 
     template <class _Tp, class _Up>
-    _LIBCPP_CONSTEXPR_AFTER_CXX17
+    _LIBCPP_CONSTEXPR_AFTER_CXX11
     bool operator()(_Tp& __x,  _Up& __y)
     {
         bool __r = __comp_(__x, __y);
@@ -51,7 +52,7 @@ struct __debug_less
     }
 
     template <class _LHS, class _RHS>
-    _LIBCPP_CONSTEXPR_AFTER_CXX17
+    _LIBCPP_CONSTEXPR_AFTER_CXX11
     inline _LIBCPP_INLINE_VISIBILITY
     decltype((void)declval<_Compare&>()(
         declval<_LHS &>(), declval<_RHS &>()))
@@ -61,7 +62,7 @@ struct __debug_less
     }
 
     template <class _LHS, class _RHS>
-    _LIBCPP_CONSTEXPR_AFTER_CXX17
+    _LIBCPP_CONSTEXPR_AFTER_CXX11
     inline _LIBCPP_INLINE_VISIBILITY
     void __do_compare_assert(long, _LHS &, _RHS &) {}
 };
@@ -73,15 +74,12 @@ struct __comp_ref_type {
   // Pass the comparator by lvalue reference. Or in debug mode, using a
   // debugging wrapper that stores a reference.
 #ifndef _LIBCPP_DEBUG
-  typedef typename add_lvalue_reference<_Comp>::type type;
+  typedef _Comp& type;
 #else
   typedef __debug_less<_Comp> type;
 #endif
 };
 
-
 _LIBCPP_END_NAMESPACE_STD
 
-_LIBCPP_POP_MACROS
-
 #endif // _LIBCPP___ALGORITHM_COMP_REF_TYPE_H

system/lib/libcxx/include/__algorithm/copy.h

@@ -9,8 +9,8 @@
 #ifndef _LIBCPP___ALGORITHM_COPY_H
 #define _LIBCPP___ALGORITHM_COPY_H
 
-#include <__config>
 #include <__algorithm/unwrap_iter.h>
+#include <__config>
 #include <__iterator/iterator_traits.h>
 #include <cstring>
 #include <type_traits>
@@ -19,9 +19,6 @@
 #pragma GCC system_header
 #endif
 
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 // copy
@@ -77,6 +74,4 @@ copy(_InputIterator __first, _InputIterator __last, _OutputIterator __result)
 
 _LIBCPP_END_NAMESPACE_STD
 
-_LIBCPP_POP_MACROS
-
 #endif // _LIBCPP___ALGORITHM_COPY_H

system/lib/libcxx/include/__algorithm/copy_backward.h

@@ -9,8 +9,8 @@
 #ifndef _LIBCPP___ALGORITHM_COPY_BACKWARD_H
 #define _LIBCPP___ALGORITHM_COPY_BACKWARD_H
 
-#include <__config>
 #include <__algorithm/unwrap_iter.h>
+#include <__config>
 #include <__iterator/iterator_traits.h>
 #include <cstring>
 #include <type_traits>
@@ -19,9 +19,6 @@
 #pragma GCC system_header
 #endif
 
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _BidirectionalIterator, class _OutputIterator>
@@ -79,6 +76,4 @@ copy_backward(_BidirectionalIterator1 __first, _BidirectionalIterator1 __last,
 
 _LIBCPP_END_NAMESPACE_STD
 
-_LIBCPP_POP_MACROS
-
 #endif // _LIBCPP___ALGORITHM_COPY_BACKWARD_H