Merge llvm-project main llvmorg-15-init-16436-g18a6ab5b8d1f

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and
openmp to llvmorg-15-init-16436-g18a6ab5b8d1f.

PR:		265425
MFC after:	2 weeks

1 files changed, 88 insertions, 0 deletions

diff --git a/contrib/llvm-project/libcxx/include/__algorithm/ranges_unique_copy.h b/contrib/llvm-project/libcxx/include/__algorithm/ranges_unique_copy.h
new file mode 100644
index 000000000000..56361aa8ae2f
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__algorithm/ranges_unique_copy.h
@@ -0,0 +1,88 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___ALGORITHM_RANGES_UNIQUE_COPY_H
+#define _LIBCPP___ALGORITHM_RANGES_UNIQUE_COPY_H
+
+#include <__algorithm/in_out_result.h>
+#include <__algorithm/make_projected.h>
+#include <__algorithm/unique_copy.h>
+#include <__concepts/same_as.h>
+#include <__config>
+#include <__functional/identity.h>
+#include <__functional/invoke.h>
+#include <__functional/ranges_operations.h>
+#include <__iterator/concepts.h>
+#include <__iterator/iterator_traits.h>
+#include <__iterator/readable_traits.h>
+#include <__iterator/projected.h>
+#include <__ranges/access.h>
+#include <__ranges/concepts.h>
+#include <__ranges/dangling.h>
+#include <__utility/forward.h>
+#include <__utility/move.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#  pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace ranges {
+
+template <class _InIter, class _OutIter>
+using unique_copy_result = in_out_result<_InIter, _OutIter>;
+
+namespace __unique_copy {
+
+struct __fn {
+
+  template <input_iterator _InIter, sentinel_for<_InIter> _Sent, weakly_incrementable _OutIter, class _Proj = identity,
+            indirect_equivalence_relation<projected<_InIter, _Proj>> _Comp = ranges::equal_to>
+  requires indirectly_copyable<_InIter, _OutIter> &&
+            (forward_iterator<_InIter> ||
+            (input_iterator<_OutIter> && same_as<iter_value_t<_InIter>, iter_value_t<_OutIter>>) ||
+            indirectly_copyable_storable<_InIter, _OutIter>)
+  _LIBCPP_HIDE_FROM_ABI constexpr
+  unique_copy_result<_InIter, _OutIter>
+  operator()(_InIter __first, _Sent __last, _OutIter __result, _Comp __comp = {}, _Proj __proj = {}) const {
+    // TODO: implement
+    (void)__first; (void)__last; (void)__result; (void)__comp; (void)__proj;
+    return {};
+  }
+
+  template <input_range _Range, weakly_incrementable _OutIter, class _Proj = identity,
+            indirect_equivalence_relation<projected<iterator_t<_Range>, _Proj>> _Comp = ranges::equal_to>
+  requires indirectly_copyable<iterator_t<_Range>, _OutIter> &&
+            (forward_iterator<iterator_t<_Range>> ||
+            (input_iterator<_OutIter> && same_as<range_value_t<_Range>, iter_value_t<_OutIter>>) ||
+            indirectly_copyable_storable<iterator_t<_Range>, _OutIter>)
+  _LIBCPP_HIDE_FROM_ABI constexpr
+  unique_copy_result<borrowed_iterator_t<_Range>, _OutIter>
+  operator()(_Range&& __range, _OutIter __result, _Comp __comp = {}, _Proj __proj = {}) const {
+    // TODO: implement
+    (void)__range; (void)__result; (void)__comp; (void)__proj;
+    return {};
+  }
+
+};
+
+} // namespace __unique_copy
+
+inline namespace __cpo {
+  inline constexpr auto unique_copy = __unique_copy::__fn{};
+} // namespace __cpo
+} // namespace ranges
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
+
+#endif // _LIBCPP___ALGORITHM_RANGES_UNIQUE_COPY_H