Update libcxx and libcxxabi to LLVM 18.1.2

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

@@ -19,7 +19,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _InputIterator, class _Predicate>
-_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
 any_of(_InputIterator __first, _InputIterator __last, _Predicate __pred) {
   for (; __first != __last; ++__first)
     if (__pred(*__first))

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

@@ -22,22 +22,16 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _ForwardIterator, class _Tp, class _Compare>
-_LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
-bool
-binary_search(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, _Compare __comp)
-{
-    __first = std::lower_bound<_ForwardIterator, _Tp, __comp_ref_type<_Compare> >(__first, __last, __value, __comp);
-    return __first != __last && !__comp(__value, *__first);
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
+binary_search(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, _Compare __comp) {
+  __first = std::lower_bound<_ForwardIterator, _Tp, __comp_ref_type<_Compare> >(__first, __last, __value, __comp);
+  return __first != __last && !__comp(__value, *__first);
 }
 
 template <class _ForwardIterator, class _Tp>
-_LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
-bool
-binary_search(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value)
-{
-    return std::binary_search(__first, __last, __value, __less<>());
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
+binary_search(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value) {
+  return std::binary_search(__first, __last, __value, __less<>());
 }
 
 _LIBCPP_END_NAMESPACE_STD

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

@@ -20,24 +20,22 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 #if _LIBCPP_STD_VER >= 17
-template<class _Tp, class _Compare>
-_LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY constexpr
-const _Tp&
-clamp(const _Tp& __v, const _Tp& __lo, const _Tp& __hi, _Compare __comp)
-{
-    _LIBCPP_ASSERT_UNCATEGORIZED(!__comp(__hi, __lo), "Bad bounds passed to std::clamp");
-    return __comp(__v, __lo) ? __lo : __comp(__hi, __v) ? __hi : __v;
-
+template <class _Tp, class _Compare>
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI constexpr const _Tp&
+clamp(_LIBCPP_LIFETIMEBOUND const _Tp& __v,
+      _LIBCPP_LIFETIMEBOUND const _Tp& __lo,
+      _LIBCPP_LIFETIMEBOUND const _Tp& __hi,
+      _Compare __comp) {
+  _LIBCPP_ASSERT_ARGUMENT_WITHIN_DOMAIN(!__comp(__hi, __lo), "Bad bounds passed to std::clamp");
+  return __comp(__v, __lo) ? __lo : __comp(__hi, __v) ? __hi : __v;
 }
 
-template<class _Tp>
-_LIBCPP_NODISCARD_EXT inline
-_LIBCPP_INLINE_VISIBILITY constexpr
-const _Tp&
-clamp(const _Tp& __v, const _Tp& __lo, const _Tp& __hi)
-{
-    return _VSTD::clamp(__v, __lo, __hi, __less<>());
+template <class _Tp>
+_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI constexpr const _Tp&
+clamp(_LIBCPP_LIFETIMEBOUND const _Tp& __v,
+      _LIBCPP_LIFETIMEBOUND const _Tp& __lo,
+      _LIBCPP_LIFETIMEBOUND const _Tp& __hi) {
+  return std::clamp(__v, __lo, __hi, __less<>());
 }
 #endif
 

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

@@ -11,7 +11,7 @@
 
 #include <__config>
 #include <__type_traits/integral_constant.h>
-#include <__type_traits/predicate_traits.h>
+#include <__type_traits/operation_traits.h>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
@@ -26,8 +26,8 @@ struct __equal_to {
   }
 };
 
-template <class _Lhs, class _Rhs>
-struct __is_trivial_equality_predicate<__equal_to, _Lhs, _Rhs> : true_type {};
+template <class _Tp, class _Up>
+struct __desugars_to<__equal_tag, __equal_to, _Tp, _Up> : true_type {};
 
 // The definition is required because __less is part of the ABI, but it's empty
 // because all comparisons should be transparent.

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

@@ -20,52 +20,41 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _Compare>
-struct __debug_less
-{
-    _Compare &__comp_;
-    _LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI __debug_less(_Compare& __c) : __comp_(__c) {}
+struct __debug_less {
+  _Compare& __comp_;
+  _LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI __debug_less(_Compare& __c) : __comp_(__c) {}
 
-    template <class _Tp, class _Up>
-    _LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI
-    bool operator()(const _Tp& __x,  const _Up& __y)
-    {
-        bool __r = __comp_(__x, __y);
-        if (__r)
-            __do_compare_assert(0, __y, __x);
-        return __r;
-    }
+  template <class _Tp, class _Up>
+  _LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Tp& __x, const _Up& __y) {
+    bool __r = __comp_(__x, __y);
+    if (__r)
+      __do_compare_assert(0, __y, __x);
+    return __r;
+  }
 
-    template <class _Tp, class _Up>
-    _LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI
-    bool operator()(_Tp& __x,  _Up& __y)
-    {
-        bool __r = __comp_(__x, __y);
-        if (__r)
-            __do_compare_assert(0, __y, __x);
-        return __r;
-    }
+  template <class _Tp, class _Up>
+  _LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()(_Tp& __x, _Up& __y) {
+    bool __r = __comp_(__x, __y);
+    if (__r)
+      __do_compare_assert(0, __y, __x);
+    return __r;
+  }
 
-    template <class _LHS, class _RHS>
-    _LIBCPP_CONSTEXPR_SINCE_CXX14
-    inline _LIBCPP_INLINE_VISIBILITY
-    decltype((void)std::declval<_Compare&>()(
-        std::declval<_LHS &>(), std::declval<_RHS &>()))
-    __do_compare_assert(int, _LHS & __l, _RHS & __r) {
-        _LIBCPP_ASSERT_UNCATEGORIZED(!__comp_(__l, __r),
-            "Comparator does not induce a strict weak ordering");
-        (void)__l;
-        (void)__r;
-    }
+  template <class _LHS, class _RHS>
+  _LIBCPP_CONSTEXPR_SINCE_CXX14 inline _LIBCPP_HIDE_FROM_ABI decltype((void)std::declval<_Compare&>()(
+      std::declval<_LHS&>(), std::declval<_RHS&>()))
+  __do_compare_assert(int, _LHS& __l, _RHS& __r) {
+    _LIBCPP_ASSERT_SEMANTIC_REQUIREMENT(!__comp_(__l, __r), "Comparator does not induce a strict weak ordering");
+    (void)__l;
+    (void)__r;
+  }
 
-    template <class _LHS, class _RHS>
-    _LIBCPP_CONSTEXPR_SINCE_CXX14
-    inline _LIBCPP_INLINE_VISIBILITY
-    void __do_compare_assert(long, _LHS &, _RHS &) {}
+  template <class _LHS, class _RHS>
+  _LIBCPP_CONSTEXPR_SINCE_CXX14 inline _LIBCPP_HIDE_FROM_ABI void __do_compare_assert(long, _LHS&, _RHS&) {}
 };
 
-// Pass the comparator by lvalue reference. Or in debug mode, using a
-// debugging wrapper that stores a reference.
-#if _LIBCPP_ENABLE_DEBUG_MODE
+// Pass the comparator by lvalue reference. Or in the debug mode, using a debugging wrapper that stores a reference.
+#if _LIBCPP_HARDENING_MODE == _LIBCPP_HARDENING_MODE_DEBUG
 template <class _Comp>
 using __comp_ref_type = __debug_less<_Comp>;
 #else

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

@@ -51,9 +51,10 @@ struct __copy_loop {
 
     _OutIter& __result_;
 
-    _LIBCPP_HIDE_FROM_ABI _CopySegment(_OutIter& __result) : __result_(__result) {}
+    _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit _CopySegment(_OutIter& __result)
+        : __result_(__result) {}
 
-    _LIBCPP_HIDE_FROM_ABI void
+    _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void
     operator()(typename _Traits::__local_iterator __lfirst, typename _Traits::__local_iterator __llast) {
       __result_ = std::__copy<_AlgPolicy>(__lfirst, __llast, std::move(__result_)).second;
     }
@@ -112,7 +113,7 @@ __copy(_InIter __first, _Sent __last, _OutIter __result) {
 }
 
 template <class _InputIterator, class _OutputIterator>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
 copy(_InputIterator __first, _InputIterator __last, _OutputIterator __result) {
   return std::__copy<_ClassicAlgPolicy>(__first, __last, __result).second;
 }

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

@@ -108,8 +108,7 @@ struct __copy_backward_loop {
 
 struct __copy_backward_trivial {
   // At this point, the iterators have been unwrapped so any `contiguous_iterator` has been unwrapped to a pointer.
-  template <class _In, class _Out,
-            __enable_if_t<__can_lower_copy_assignment_to_memmove<_In, _Out>::value, int> = 0>
+  template <class _In, class _Out, __enable_if_t<__can_lower_copy_assignment_to_memmove<_In, _Out>::value, int> = 0>
   _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 pair<_In*, _Out*>
   operator()(_In* __first, _In* __last, _Out* __result) const {
     return std::__copy_backward_trivial_impl(__first, __last, __result);
@@ -124,16 +123,13 @@ __copy_backward(_BidirectionalIterator1 __first, _Sentinel __last, _Bidirectiona
 }
 
 template <class _BidirectionalIterator1, class _BidirectionalIterator2>
-inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
-_BidirectionalIterator2
-copy_backward(_BidirectionalIterator1 __first, _BidirectionalIterator1 __last,
-              _BidirectionalIterator2 __result)
-{
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _BidirectionalIterator2
+copy_backward(_BidirectionalIterator1 __first, _BidirectionalIterator1 __last, _BidirectionalIterator2 __result) {
   static_assert(std::is_copy_constructible<_BidirectionalIterator1>::value &&
-                std::is_copy_constructible<_BidirectionalIterator1>::value, "Iterators must be copy constructible.");
+                    std::is_copy_constructible<_BidirectionalIterator1>::value,
+                "Iterators must be copy constructible.");
 
-  return std::__copy_backward<_ClassicAlgPolicy>(
-      std::move(__first), std::move(__last), std::move(__result)).second;
+  return std::__copy_backward<_ClassicAlgPolicy>(std::move(__first), std::move(__last), std::move(__result)).second;
 }
 
 _LIBCPP_END_NAMESPACE_STD

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

@@ -17,21 +17,16 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-template<class _InputIterator, class _OutputIterator, class _Predicate>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
-_OutputIterator
-copy_if(_InputIterator __first, _InputIterator __last,
-        _OutputIterator __result, _Predicate __pred)
-{
-    for (; __first != __last; ++__first)
-    {
-        if (__pred(*__first))
-        {
-            *__result = *__first;
-            ++__result;
-        }
+template <class _InputIterator, class _OutputIterator, class _Predicate>
+inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
+copy_if(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _Predicate __pred) {
+  for (; __first != __last; ++__first) {
+    if (__pred(*__first)) {
+      *__result = *__first;
+      ++__result;
     }
-    return __result;
+  }
+  return __result;
 }
 
 _LIBCPP_END_NAMESPACE_STD

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

@@ -31,29 +31,29 @@
 #  pragma GCC system_header
 #endif
 
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 // Type traits.
 
 template <class _From, class _To>
 struct __can_lower_copy_assignment_to_memmove {
   static const bool value =
-    // If the types are always bitcastable, it's valid to do a bitwise copy between them.
-    __is_always_bitcastable<_From, _To>::value &&
-    // Reject conversions that wouldn't be performed by the regular built-in assignment (e.g. between arrays).
-    is_trivially_assignable<_To&, const _From&>::value &&
-    // `memmove` doesn't accept `volatile` pointers, make sure the optimization SFINAEs away in that case.
-    !is_volatile<_From>::value &&
-    !is_volatile<_To>::value;
+      // If the types are always bitcastable, it's valid to do a bitwise copy between them.
+      __is_always_bitcastable<_From, _To>::value &&
+      // Reject conversions that wouldn't be performed by the regular built-in assignment (e.g. between arrays).
+      is_trivially_assignable<_To&, const _From&>::value &&
+      // `memmove` doesn't accept `volatile` pointers, make sure the optimization SFINAEs away in that case.
+      !is_volatile<_From>::value && !is_volatile<_To>::value;
 };
 
 template <class _From, class _To>
 struct __can_lower_move_assignment_to_memmove {
   static const bool value =
-    __is_always_bitcastable<_From, _To>::value &&
-    is_trivially_assignable<_To&, _From&&>::value &&
-    !is_volatile<_From>::value &&
-    !is_volatile<_To>::value;
+      __is_always_bitcastable<_From, _To>::value && is_trivially_assignable<_To&, _From&&>::value &&
+      !is_volatile<_From>::value && !is_volatile<_To>::value;
 };
 
 // `memmove` algorithms implementation.
@@ -95,8 +95,8 @@ struct __can_rewrap<_InIter,
                     _Sent,
                     _OutIter,
                     // Note that sentinels are always copy-constructible.
-                    __enable_if_t< is_copy_constructible<_InIter>::value &&
-                                   is_copy_constructible<_OutIter>::value > > : true_type {};
+                    __enable_if_t< is_copy_constructible<_InIter>::value && is_copy_constructible<_OutIter>::value > >
+    : true_type {};
 
 template <class _Algorithm,
           class _InIter,
@@ -108,7 +108,7 @@ __unwrap_and_dispatch(_InIter __first, _Sent __last, _OutIter __out_first) {
   auto __range  = std::__unwrap_range(__first, std::move(__last));
   auto __result = _Algorithm()(std::move(__range.first), std::move(__range.second), std::__unwrap_iter(__out_first));
   return std::make_pair(std::__rewrap_range<_Sent>(std::move(__first), std::move(__result.first)),
-                                 std::__rewrap_iter(std::move(__out_first), std::move(__result.second)));
+                        std::__rewrap_iter(std::move(__out_first), std::move(__result.second)));
 }
 
 template <class _Algorithm,
@@ -135,4 +135,6 @@ __dispatch_copy_or_move(_InIter __first, _Sent __last, _OutIter __out_first) {
 
 _LIBCPP_END_NAMESPACE_STD
 
+_LIBCPP_POP_MACROS
+
 #endif // _LIBCPP___ALGORITHM_COPY_MOVE_COMMON_H