diff --git a/libcxx/benchmarks/algorithms/common.h b/libcxx/benchmarks/algorithms/common.h
--- a/libcxx/benchmarks/algorithms/common.h
+++ b/libcxx/benchmarks/algorithms/common.h
@@ -49,8 +49,8 @@
 // These values are arranged in such a way that they would invoke O(N^2)
 // behavior on any quick sort implementation that satisifies certain conditions.
 // Details are available in the following paper:
-// "A Killer Adversary for Quicksort", M. D. McIlroy, Software—Practice &
-// ExperienceVolume 29 Issue 4 April 10, 1999 pp 341–344.
+// "A Killer Adversary for Quicksort", M. D. McIlroy, Software-Practice &
+// Experience Volume 29 Issue 4 April 10, 1999 pp 341-344.
 // https://dl.acm.org/doi/10.5555/311868.311871.
 template <class T>
 void fillAdversarialQuickSortInput(T& V, size_t N) {
diff --git a/libcxx/benchmarks/formatter_float.bench.cpp b/libcxx/benchmarks/formatter_float.bench.cpp
--- a/libcxx/benchmarks/formatter_float.bench.cpp
+++ b/libcxx/benchmarks/formatter_float.bench.cpp
@@ -203,7 +203,7 @@
 
 template <>
 struct Precision<PrecisionE::Huge> {
-  // The maximum precision for a minimal sub normal long double is ±0x1p-16494.
+  // The maximum precision for a minimal sub normal long double is +/- 0x1p-16494.
   // This value is always larger than that value forcing the trailing zero path
   // to be executed.
   static constexpr const char* fmt = ".17000";
diff --git a/libcxx/src/atomic.cpp b/libcxx/src/atomic.cpp
--- a/libcxx/src/atomic.cpp
+++ b/libcxx/src/atomic.cpp
@@ -52,11 +52,11 @@
 #elif defined(__APPLE__) && defined(_LIBCPP_USE_ULOCK)
 
 extern "C" int __ulock_wait(uint32_t operation, void *addr, uint64_t value,
-		uint32_t timeout); /* timeout is specified in microseconds */
+                            uint32_t timeout); /* timeout is specified in microseconds */
 extern "C" int __ulock_wake(uint32_t operation, void *addr, uint64_t wake_value);
 
-#define UL_COMPARE_AND_WAIT				1
-#define ULF_WAKE_ALL					0x00000100
+#define UL_COMPARE_AND_WAIT 1
+#define ULF_WAKE_ALL        0x00000100
 
 static void __libcpp_platform_wait_on_address(__cxx_atomic_contention_t const volatile* __ptr,
                                               __cxx_contention_t __val)
diff --git a/libcxx/src/charconv.cpp b/libcxx/src/charconv.cpp
--- a/libcxx/src/charconv.cpp
+++ b/libcxx/src/charconv.cpp
@@ -21,13 +21,13 @@
 _LIBCPP_FUNC_VIS char*
 __u32toa(uint32_t value, char* buffer) noexcept
 {
-	return __base_10_u32(buffer, value);
+  return __base_10_u32(buffer, value);
 }
 
 _LIBCPP_FUNC_VIS char*
 __u64toa(uint64_t value, char* buffer) noexcept
 {
-	return __base_10_u64(buffer, value);
+  return __base_10_u64(buffer, value);
 }
 
 }  // namespace __itoa
diff --git a/libcxx/src/ios.cpp b/libcxx/src/ios.cpp
--- a/libcxx/src/ios.cpp
+++ b/libcxx/src/ios.cpp
@@ -145,11 +145,11 @@
 template <typename _Tp>
 static size_t __ios_new_cap(size_t __req_size, size_t __current_cap)
 { // Precondition: __req_size > __current_cap
-	const size_t mx = std::numeric_limits<size_t>::max() / sizeof(_Tp);
-	if (__req_size < mx/2)
-		return _VSTD::max(2 * __current_cap, __req_size);
-	else
-		return mx;
+    const size_t mx = std::numeric_limits<size_t>::max() / sizeof(_Tp);
+    if (__req_size < mx/2)
+        return _VSTD::max(2 * __current_cap, __req_size);
+    else
+        return mx;
 }
 
 int
diff --git a/libcxx/src/iostream.cpp b/libcxx/src/iostream.cpp
--- a/libcxx/src/iostream.cpp
+++ b/libcxx/src/iostream.cpp
@@ -109,8 +109,8 @@
 
 class DoIOSInit {
 public:
-	DoIOSInit();
-	~DoIOSInit();
+    DoIOSInit();
+    ~DoIOSInit();
 };
 
 DoIOSInit::DoIOSInit()
diff --git a/libcxx/src/locale.cpp b/libcxx/src/locale.cpp
--- a/libcxx/src/locale.cpp
+++ b/libcxx/src/locale.cpp
@@ -4805,7 +4805,7 @@
 {
 //  if the grouping pattern is empty _or_ there are no grouping bits, then do nothing
 //  we always have at least a single entry in [__g, __g_end); the end of the input sequence
-	if (__grouping.size() != 0 && __g_end - __g > 1)
+    if (__grouping.size() != 0 && __g_end - __g > 1)
     {
         reverse(__g, __g_end);
         const char* __ig = __grouping.data();
@@ -4838,7 +4838,7 @@
     if ((__flags & ios_base::showpos) &&
         (__flags & ios_base::basefield) != ios_base::oct &&
         (__flags & ios_base::basefield) != ios_base::hex &&
-	__signd)
+        __signd)
         *__fmtp++ = '+';
     if (__flags & ios_base::showbase)
         *__fmtp++ = '#';
diff --git a/libcxx/src/optional.cpp b/libcxx/src/optional.cpp
--- a/libcxx/src/optional.cpp
+++ b/libcxx/src/optional.cpp
@@ -16,7 +16,7 @@
 
 const char* bad_optional_access::what() const noexcept {
   return "bad_optional_access";
-  }
+}
 
 } // std
 
@@ -28,13 +28,13 @@
 _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL
 
 class _LIBCPP_EXCEPTION_ABI _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS bad_optional_access
-    : public std::logic_error
+  : public std::logic_error
 {
 public:
-	bad_optional_access() : std::logic_error("Bad optional Access") {}
+  bad_optional_access() : std::logic_error("Bad optional Access") {}
 
-//	Get the key function ~bad_optional_access() into the dylib
-    virtual ~bad_optional_access() noexcept;
+  // Get the key function ~bad_optional_access() into the dylib
+  virtual ~bad_optional_access() noexcept;
 };
 
 bad_optional_access::~bad_optional_access() noexcept = default;
diff --git a/libcxx/test/libcxx/diagnostics/nodiscard_aftercxx17.pass.cpp b/libcxx/test/libcxx/diagnostics/nodiscard_aftercxx17.pass.cpp
--- a/libcxx/test/libcxx/diagnostics/nodiscard_aftercxx17.pass.cpp
+++ b/libcxx/test/libcxx/diagnostics/nodiscard_aftercxx17.pass.cpp
@@ -19,7 +19,7 @@
 
 int main(int, char**)
 {
-	foo();	// no error here!
+  foo(); // no error here!
 
   return 0;
 }
diff --git a/libcxx/test/libcxx/diagnostics/nodiscard_aftercxx17.verify.cpp b/libcxx/test/libcxx/diagnostics/nodiscard_aftercxx17.verify.cpp
--- a/libcxx/test/libcxx/diagnostics/nodiscard_aftercxx17.verify.cpp
+++ b/libcxx/test/libcxx/diagnostics/nodiscard_aftercxx17.verify.cpp
@@ -7,7 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 // Test that _LIBCPP_NODISCARD_AFTER_CXX17 works
-//	#define _LIBCPP_NODISCARD_AFTER_CXX17 [[nodiscard]]
+// #define _LIBCPP_NODISCARD_AFTER_CXX17 [[nodiscard]]
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 
diff --git a/libcxx/test/libcxx/input.output/file.streams/fstreams/filebuf/traits_mismatch.fail.cpp b/libcxx/test/libcxx/input.output/file.streams/fstreams/filebuf/traits_mismatch.fail.cpp
--- a/libcxx/test/libcxx/input.output/file.streams/fstreams/filebuf/traits_mismatch.fail.cpp
+++ b/libcxx/test/libcxx/input.output/file.streams/fstreams/filebuf/traits_mismatch.fail.cpp
@@ -17,8 +17,8 @@
 
 int main(int, char**)
 {
-	std::basic_filebuf<char, std::char_traits<wchar_t> > f;
-//  expected-error-re@streambuf:* {{{{(static_assert|static assertion)}} failed{{.*}}traits_type::char_type must be the same type as CharT}}
+  std::basic_filebuf<char, std::char_traits<wchar_t> > f;
+  // expected-error-re@streambuf:* {{{{(static_assert|static assertion)}} failed{{.*}}traits_type::char_type must be the same type as CharT}}
 
   return 0;
 }
diff --git a/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.close.pass.cpp b/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.close.pass.cpp
--- a/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.close.pass.cpp
+++ b/libcxx/test/libcxx/input.output/file.streams/fstreams/fstream.close.pass.cpp
@@ -12,7 +12,7 @@
 
 // close();
 
-//	Inspired by PR#38052 - std::fstream still good after closing and updating content
+// Inspired by PR#38052 - std::fstream still good after closing and updating content
 
 #include <fstream>
 #include <cassert>
@@ -33,5 +33,5 @@
 
     std::remove(temp.c_str());
 
-  return 0;
+    return 0;
 }
diff --git a/libcxx/test/libcxx/input.output/file.streams/fstreams/traits_mismatch.fail.cpp b/libcxx/test/libcxx/input.output/file.streams/fstreams/traits_mismatch.fail.cpp
--- a/libcxx/test/libcxx/input.output/file.streams/fstreams/traits_mismatch.fail.cpp
+++ b/libcxx/test/libcxx/input.output/file.streams/fstreams/traits_mismatch.fail.cpp
@@ -17,7 +17,7 @@
 
 int main(int, char**)
 {
-	std::basic_fstream<char, std::char_traits<wchar_t> > f;
+  std::basic_fstream<char, std::char_traits<wchar_t> > f;
 //  expected-error-re@ios:* {{{{(static_assert|static assertion)}} failed{{.*}}traits_type::char_type must be the same type as CharT}}
 //  expected-error-re@streambuf:* {{{{(static_assert|static assertion)}} failed{{.*}}traits_type::char_type must be the same type as CharT}}
 
diff --git a/libcxx/test/libcxx/input.output/string.streams/traits_mismatch.fail.cpp b/libcxx/test/libcxx/input.output/string.streams/traits_mismatch.fail.cpp
--- a/libcxx/test/libcxx/input.output/string.streams/traits_mismatch.fail.cpp
+++ b/libcxx/test/libcxx/input.output/string.streams/traits_mismatch.fail.cpp
@@ -20,7 +20,7 @@
 
 int main(int, char**)
 {
-	std::basic_stringbuf<char, std::char_traits<wchar_t> > sb;
+  std::basic_stringbuf<char, std::char_traits<wchar_t> > sb;
 //  expected-error-re@streambuf:* {{{{(static_assert|static assertion)}} failed{{.*}}traits_type::char_type must be the same type as CharT}}
 //  expected-error-re@string:* {{{{(static_assert|static assertion)}} failed{{.*}}traits_type::char_type must be the same type as CharT}}
 
diff --git a/libcxx/test/libcxx/iterators/assert.advance.pass.cpp b/libcxx/test/libcxx/iterators/assert.advance.pass.cpp
--- a/libcxx/test/libcxx/iterators/assert.advance.pass.cpp
+++ b/libcxx/test/libcxx/iterators/assert.advance.pass.cpp
@@ -24,13 +24,13 @@
     int a[] = {1, 2, 3};
 
     bidirectional_iterator<int *> bidi(a+1);
-	std::advance(bidi,  1);  // should work fine
-	std::advance(bidi,  0);  // should work fine
+    std::advance(bidi,  1);  // should work fine
+    std::advance(bidi,  0);  // should work fine
     std::advance(bidi, -1);  // should work fine
 
     forward_iterator<int *> it(a+1);
-	std::advance(it, 1);  // should work fine
-	std::advance(it, 0);  // should work fine
+    std::advance(it, 1);  // should work fine
+    std::advance(it, 0);  // should work fine
     TEST_LIBCPP_ASSERT_FAILURE(std::advance(it, -1), "Attempt to advance(it, n) with negative n on a non-bidirectional iterator");
 
     return 0;
diff --git a/libcxx/test/libcxx/iterators/iterator.requirements/iterator.concepts/iterator.concept.random.access/contiguous_iterator.verify.cpp b/libcxx/test/libcxx/iterators/iterator.requirements/iterator.concepts/iterator.concept.random.access/contiguous_iterator.verify.cpp
--- a/libcxx/test/libcxx/iterators/iterator.requirements/iterator.concepts/iterator.concept.random.access/contiguous_iterator.verify.cpp
+++ b/libcxx/test/libcxx/iterators/iterator.requirements/iterator.concepts/iterator.concept.random.access/contiguous_iterator.verify.cpp
@@ -49,6 +49,6 @@
 
 void test() {
     (void) std::contiguous_iterator<no_element_type>;
-		// expected-error@*:* {{implicit instantiation of undefined template}}
-		// expected-note@*:* {{to_address}}
+        // expected-error@*:* {{implicit instantiation of undefined template}}
+        // expected-note@*:* {{to_address}}
 }
diff --git a/libcxx/test/libcxx/iterators/stream.iterators/ostreambuf.iterator/ostreambuf.iter.ops/failed.pass.cpp b/libcxx/test/libcxx/iterators/stream.iterators/ostreambuf.iterator/ostreambuf.iter.ops/failed.pass.cpp
--- a/libcxx/test/libcxx/iterators/stream.iterators/ostreambuf.iterator/ostreambuf.iter.ops/failed.pass.cpp
+++ b/libcxx/test/libcxx/iterators/stream.iterators/ostreambuf.iterator/ostreambuf.iter.ops/failed.pass.cpp
@@ -12,7 +12,7 @@
 
 // bool failed() const throw();
 //
-//	Extension: constructing from NULL is UB; we just make it a failed iterator
+// Extension: constructing from NULL is UB; we just make it a failed iterator
 
 #include <iterator>
 #include <cassert>
diff --git a/libcxx/test/libcxx/memory/is_allocator.pass.cpp b/libcxx/test/libcxx/memory/is_allocator.pass.cpp
--- a/libcxx/test/libcxx/memory/is_allocator.pass.cpp
+++ b/libcxx/test/libcxx/memory/is_allocator.pass.cpp
@@ -25,19 +25,19 @@
 template <typename T>
 void test_allocators()
 {
-	static_assert(!std::__is_allocator<T>::value, "" );
-	static_assert( std::__is_allocator<std::allocator<T>>::value, "" );
-	static_assert( std::__is_allocator<test_allocator<T>>::value, "" );
-	static_assert( std::__is_allocator<min_allocator<T>>::value, "" );
+    static_assert(!std::__is_allocator<T>::value, "" );
+    static_assert( std::__is_allocator<std::allocator<T>>::value, "" );
+    static_assert( std::__is_allocator<test_allocator<T>>::value, "" );
+    static_assert( std::__is_allocator<min_allocator<T>>::value, "" );
 }
 
 
 int main(int, char**)
 {
-//	test_allocators<void>();
-	test_allocators<char>();
-	test_allocators<int>();
-	test_allocators<std::string>();
+    // test_allocators<void>();
+    test_allocators<char>();
+    test_allocators<int>();
+    test_allocators<std::string>();
 
-  return 0;
+    return 0;
 }
diff --git a/libcxx/test/std/algorithms/alg.sorting/alg.merge/ranges_inplace_merge.pass.cpp b/libcxx/test/std/algorithms/alg.sorting/alg.merge/ranges_inplace_merge.pass.cpp
--- a/libcxx/test/std/algorithms/alg.sorting/alg.merge/ranges_inplace_merge.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.sorting/alg.merge/ranges_inplace_merge.pass.cpp
@@ -50,7 +50,7 @@
 
 static_assert(HasInplaceMergeIter<int*, int*, int*>);
 
-// !bidirectional_­iterator<I>
+// !bidirectional_iterator<I>
 static_assert(!HasInplaceMergeIter<BidirectionalIteratorNotDerivedFrom>);
 static_assert(!HasInplaceMergeIter<cpp20_input_iterator<int*>>);
 
@@ -287,7 +287,7 @@
 
   // Complexity: Let N = last - first :
   //   - For the overloads with no ExecutionPolicy, and if enough
-  //     additional memory is available, exactly N − 1 comparisons.
+  //     additional memory is available, exactly N - 1 comparisons.
   //   - Otherwise, O(NlogN) comparisons.
   // In either case, twice as many projections as comparisons.
   {
diff --git a/libcxx/test/std/algorithms/alg.sorting/alg.nth.element/ranges_nth_element.pass.cpp b/libcxx/test/std/algorithms/alg.sorting/alg.nth.element/ranges_nth_element.pass.cpp
--- a/libcxx/test/std/algorithms/alg.sorting/alg.nth.element/ranges_nth_element.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.sorting/alg.nth.element/ranges_nth_element.pass.cpp
@@ -10,13 +10,13 @@
 
 // <algorithm>
 
-// template<random_­access_­iterator I, sentinel_­for<I> S, class Comp = ranges::less,
+// template<random_access_iterator I, sentinel_for<I> S, class Comp = ranges::less,
 //         class Proj = identity>
 //   requires sortable<I, Comp, Proj>
 //   constexpr I
 //     ranges::nth_element(I first, I nth, S last, Comp comp = {}, Proj proj = {});            // since C++20
 //
-// template<random_­access_­range R, class Comp = ranges::less, class Proj = identity>
+// template<random_access_range R, class Comp = ranges::less, class Proj = identity>
 //   requires sortable<iterator_t<R>, Comp, Proj>
 //   constexpr borrowed_iterator_t<R>
 //     ranges::nth_element(R&& r, iterator_t<R> nth, Comp comp = {}, Proj proj = {});          // since C++20
diff --git a/libcxx/test/std/algorithms/alg.sorting/alg.set.operations/set.union/ranges_set_union.pass.cpp b/libcxx/test/std/algorithms/alg.sorting/alg.set.operations/set.union/ranges_set_union.pass.cpp
--- a/libcxx/test/std/algorithms/alg.sorting/alg.set.operations/set.union/ranges_set_union.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.sorting/alg.set.operations/set.union/ranges_set_union.pass.cpp
@@ -321,7 +321,7 @@
   // Stable ([algorithm.stable]). If [first1, last1) contains m elements that are
   // equivalent to each other and [first2, last2) contains n elements that are
   // equivalent to them, then all m elements from the first range are copied to the
-  // output range, in order, and then the final max(n−m,0) elements from the second
+  // output range, in order, and then the final max(n-m,0) elements from the second
   // range are copied to the output range, in order.
   {
     std::array<IntAndOrder, 3> r1{{{0, 0}, {0, 1}, {0, 2}}};
diff --git a/libcxx/test/std/algorithms/alg.sorting/alg.sort/sort/sort.pass.cpp b/libcxx/test/std/algorithms/alg.sorting/alg.sort/sort/sort.pass.cpp
--- a/libcxx/test/std/algorithms/alg.sorting/alg.sort/sort/sort.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.sorting/alg.sort/sort/sort.pass.cpp
@@ -191,8 +191,8 @@
 // way that they would invoke O(N^2) behavior on any quick sort implementation
 // that satisifies certain conditions.  Details are available in the following
 // paper:
-// "A Killer Adversary for Quicksort", M. D. McIlroy, Software—Practice &
-// ExperienceVolume 29 Issue 4 April 10, 1999 pp 341–344.
+// "A Killer Adversary for Quicksort", M. D. McIlroy, Software-Practice &
+// Experience Volume 29 Issue 4 April 10, 1999 pp 341-344.
 // https://dl.acm.org/doi/10.5555/311868.311871.
 struct AdversaryComparator {
   AdversaryComparator(int N, std::vector<int>& input) : gas(N - 1), V(input) {
diff --git a/libcxx/test/std/containers/sequences/list/list.ops/remove.pass.cpp b/libcxx/test/std/containers/sequences/list/list.ops/remove.pass.cpp
--- a/libcxx/test/std/containers/sequences/list/list.ops/remove.pass.cpp
+++ b/libcxx/test/std/containers/sequences/list/list.ops/remove.pass.cpp
@@ -41,9 +41,9 @@
     L c(a1, a1 + 4);
 #if TEST_STD_VER > 17
     assert(c.remove(3) == 1);
-	ASSERT_SAME_TYPE(L::size_type, decltype(c.remove(3)));
+    ASSERT_SAME_TYPE(L::size_type, decltype(c.remove(3)));
 #else
-	ASSERT_SAME_TYPE(void,         decltype(c.remove(3)));
+    ASSERT_SAME_TYPE(void,         decltype(c.remove(3)));
     c.remove(3);
 #endif
 
diff --git a/libcxx/test/std/containers/sequences/list/list.ops/remove_if.pass.cpp b/libcxx/test/std/containers/sequences/list/list.ops/remove_if.pass.cpp
--- a/libcxx/test/std/containers/sequences/list/list.ops/remove_if.pass.cpp
+++ b/libcxx/test/std/containers/sequences/list/list.ops/remove_if.pass.cpp
@@ -49,10 +49,10 @@
     L c(a1, a1+4);
     Predicate cp(g);
 #if TEST_STD_VER > 17
-	ASSERT_SAME_TYPE(L::size_type, decltype(c.remove_if(std::ref(cp))));
+    ASSERT_SAME_TYPE(L::size_type, decltype(c.remove_if(std::ref(cp))));
     assert(c.remove_if(std::ref(cp)) == 2);
 #else
-	ASSERT_SAME_TYPE(void, decltype(c.remove_if(std::ref(cp))));
+    ASSERT_SAME_TYPE(void, decltype(c.remove_if(std::ref(cp))));
     c.remove_if(std::ref(cp));
 #endif
     assert(c == std::list<int>(a2, a2+2));
diff --git a/libcxx/test/std/containers/sequences/list/list.ops/unique.pass.cpp b/libcxx/test/std/containers/sequences/list/list.ops/unique.pass.cpp
--- a/libcxx/test/std/containers/sequences/list/list.ops/unique.pass.cpp
+++ b/libcxx/test/std/containers/sequences/list/list.ops/unique.pass.cpp
@@ -25,10 +25,10 @@
     typedef std::list<int> L;
     L c(a1, a1+sizeof(a1)/sizeof(a1[0]));
 #if TEST_STD_VER > 17
-	ASSERT_SAME_TYPE(L::size_type, decltype(c.unique()));
+    ASSERT_SAME_TYPE(L::size_type, decltype(c.unique()));
     assert(c.unique() == 5);
 #else
-	ASSERT_SAME_TYPE(void,         decltype(c.unique()));
+    ASSERT_SAME_TYPE(void,         decltype(c.unique()));
     c.unique();
 #endif
     assert(c == std::list<int>(a2, a2+4));
diff --git a/libcxx/test/std/containers/sequences/list/list.ops/unique_pred.pass.cpp b/libcxx/test/std/containers/sequences/list/list.ops/unique_pred.pass.cpp
--- a/libcxx/test/std/containers/sequences/list/list.ops/unique_pred.pass.cpp
+++ b/libcxx/test/std/containers/sequences/list/list.ops/unique_pred.pass.cpp
@@ -40,10 +40,10 @@
     typedef std::list<int> L;
     L c(a1, a1+sizeof(a1)/sizeof(a1[0]));
 #if TEST_STD_VER > 17
-	ASSERT_SAME_TYPE(L::size_type, decltype(c.unique(g)));
+    ASSERT_SAME_TYPE(L::size_type, decltype(c.unique(g)));
     assert(c.unique(g) == 5);
 #else
-	ASSERT_SAME_TYPE(void,         decltype(c.unique(g)));
+    ASSERT_SAME_TYPE(void,         decltype(c.unique(g)));
     c.unique(g);
 #endif
     assert(c == std::list<int>(a2, a2+4));
diff --git a/libcxx/test/std/containers/views/views.span/span.cons/array.fail.cpp b/libcxx/test/std/containers/views/views.span/span.cons/array.fail.cpp
--- a/libcxx/test/std/containers/views/views.span/span.cons/array.fail.cpp
+++ b/libcxx/test/std/containers/views/views.span/span.cons/array.fail.cpp
@@ -17,8 +17,8 @@
 //     constexpr span(const array<value_type, N>& arr) noexcept;
 //
 // Remarks: These constructors shall not participate in overload resolution unless:
-//   — extent == dynamic_extent || N == extent is true, and
-//   — remove_pointer_t<decltype(data(arr))>(*)[] is convertible to ElementType(*)[].
+//   - extent == dynamic_extent || N == extent is true, and
+//   - remove_pointer_t<decltype(data(arr))>(*)[] is convertible to ElementType(*)[].
 //
 
 
diff --git a/libcxx/test/std/containers/views/views.span/span.cons/array.pass.cpp b/libcxx/test/std/containers/views/views.span/span.cons/array.pass.cpp
--- a/libcxx/test/std/containers/views/views.span/span.cons/array.pass.cpp
+++ b/libcxx/test/std/containers/views/views.span/span.cons/array.pass.cpp
@@ -13,8 +13,8 @@
 //     constexpr span(element_type (&arr)[N]) noexcept;
 //
 // Remarks: These constructors shall not participate in overload resolution unless:
-//   — extent == dynamic_extent || N == extent is true, and
-//   — remove_pointer_t<decltype(data(arr))>(*)[] is convertible to ElementType(*)[].
+//   - extent == dynamic_extent || N == extent is true, and
+//   - remove_pointer_t<decltype(data(arr))>(*)[] is convertible to ElementType(*)[].
 //
 
 
diff --git a/libcxx/test/std/containers/views/views.span/span.cons/stdarray.pass.cpp b/libcxx/test/std/containers/views/views.span/span.cons/stdarray.pass.cpp
--- a/libcxx/test/std/containers/views/views.span/span.cons/stdarray.pass.cpp
+++ b/libcxx/test/std/containers/views/views.span/span.cons/stdarray.pass.cpp
@@ -15,8 +15,8 @@
 //     constexpr span(const array<value_type, N>& arr) noexcept;
 //
 // Remarks: These constructors shall not participate in overload resolution unless:
-//   — extent == dynamic_extent || N == extent is true, and
-//   — remove_pointer_t<decltype(data(arr))>(*)[] is convertible to ElementType(*)[].
+//   - extent == dynamic_extent || N == extent is true, and
+//   - remove_pointer_t<decltype(data(arr))>(*)[] is convertible to ElementType(*)[].
 //
 
 
diff --git a/libcxx/test/std/experimental/utilities/meta/meta.detect/nonesuch.fail.cpp b/libcxx/test/std/experimental/utilities/meta/meta.detect/nonesuch.fail.cpp
--- a/libcxx/test/std/experimental/utilities/meta/meta.detect/nonesuch.fail.cpp
+++ b/libcxx/test/std/experimental/utilities/meta/meta.detect/nonesuch.fail.cpp
@@ -10,9 +10,9 @@
 // <experimental/type_traits>
 //
 //  struct nonesuch;
-//	  nonesuch has no default constructor (C++17 §15.1)
-//    or initializer-list constructor (C++17 §11.6.4),
-//    and is not an aggregate (C++17 §11.6.1).
+//    nonesuch has no default constructor (C++17 section 15.1)
+//    or initializer-list constructor (C++17 section 11.6.4),
+//    and is not an aggregate (C++17 section 11.6.1).
 
 
 #include <experimental/type_traits>
diff --git a/libcxx/test/std/input.output/filesystems/class.path/path.member/path.gen/lexically_normal.pass.cpp b/libcxx/test/std/input.output/filesystems/class.path/path.member/path.gen/lexically_normal.pass.cpp
--- a/libcxx/test/std/input.output/filesystems/class.path/path.member/path.gen/lexically_normal.pass.cpp
+++ b/libcxx/test/std/input.output/filesystems/class.path/path.member/path.gen/lexically_normal.pass.cpp
@@ -76,7 +76,7 @@
       // p3: Replace each directory-separator with a preferred-separator.
       // [ Note: The generic pathname grammar ([fs.path.generic]) defines
       //   directory-separator as one or more slashes and preferred-separators.
-      //   — end note ]
+      //   - end note ]
       {"/", "/"},
       {"//", "/"},
       {"///", "/"},
@@ -108,7 +108,7 @@
       {"foo/bar/./../", "foo/"},
       // p6: If there is a root-directory, remove all dot-dot filenames and any
       // directory-separators immediately following them. [ Note: These dot-dot
-      // filenames attempt to refer to nonexistent parent directories. — end note ]
+      // filenames attempt to refer to nonexistent parent directories. - end note ]
       {"/..", "/"},
       {"/../", "/"},
       {"/foo/../..", "/"},
diff --git a/libcxx/test/std/localization/locale.categories/category.time/locale.time.put.byname/put1.pass.cpp b/libcxx/test/std/localization/locale.categories/category.time/locale.time.put.byname/put1.pass.cpp
--- a/libcxx/test/std/localization/locale.categories/category.time/locale.time.put.byname/put1.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/category.time/locale.time.put.byname/put1.pass.cpp
@@ -83,7 +83,7 @@
             f.put(cpp17_output_iterator<char*>(str), ios, '*', &t, pat.data(), pat.data() + pat.size());
         std::string ex(str, base(iter));
 #if defined(_WIN32) || defined(__APPLE__) || defined(_AIX)
-		// These platforms have no alternative
+        // These platforms have no alternative
         assert(ex == "Today is \xE5\x9C\x9F\xE6\x9B\x9C\xE6\x97\xA5 which is the 6th day or alternatively 6.");
 #else
         assert(ex == "Today is \xE5\x9C\x9F\xE6\x9B\x9C\xE6\x97\xA5 which is the 6th day or alternatively \xE5\x85\xAD.");
diff --git a/libcxx/test/std/numerics/bit/bit.pow.two/bit_ceil.fail.cpp b/libcxx/test/std/numerics/bit/bit.pow.two/bit_ceil.fail.cpp
--- a/libcxx/test/std/numerics/bit/bit.pow.two/bit_ceil.fail.cpp
+++ b/libcxx/test/std/numerics/bit/bit.pow.two/bit_ceil.fail.cpp
@@ -12,7 +12,7 @@
 //   constexpr T bit_ceil(T x) noexcept;
 
 // Remarks: This function shall not participate in overload resolution unless
-//	T is an unsigned integer type
+//          T is an unsigned integer type
 
 #include <bit>
 #include <cstdint>
@@ -28,25 +28,25 @@
 template <typename T>
 constexpr bool toobig()
 {
-	return 0 == std::bit_ceil(std::numeric_limits<T>::max());
+    return 0 == std::bit_ceil(std::numeric_limits<T>::max());
 }
 
 int main(int, char**)
 {
-//	Make sure we generate a compile-time error for UB
-	static_assert(toobig<unsigned char>(),      ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-	static_assert(toobig<unsigned short>(),     ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-	static_assert(toobig<unsigned>(),           ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-	static_assert(toobig<unsigned long>(),      ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-	static_assert(toobig<unsigned long long>(), ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-
-	static_assert(toobig<uint8_t>(), ""); 	// expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-	static_assert(toobig<uint16_t>(), ""); 	// expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-	static_assert(toobig<uint32_t>(), ""); 	// expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-	static_assert(toobig<uint64_t>(), ""); 	// expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-	static_assert(toobig<size_t>(), ""); 	// expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-	static_assert(toobig<uintmax_t>(), "");	// expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-	static_assert(toobig<uintptr_t>(), "");	// expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
-
-	return 0;
+    // Make sure we generate a compile-time error for UB
+    static_assert(toobig<unsigned char>(),      ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+    static_assert(toobig<unsigned short>(),     ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+    static_assert(toobig<unsigned>(),           ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+    static_assert(toobig<unsigned long>(),      ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+    static_assert(toobig<unsigned long long>(), ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+
+    static_assert(toobig<uint8_t>(), "");   // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+    static_assert(toobig<uint16_t>(), "");  // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+    static_assert(toobig<uint32_t>(), "");  // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+    static_assert(toobig<uint64_t>(), "");  // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+    static_assert(toobig<size_t>(), "");    // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+    static_assert(toobig<uintmax_t>(), ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+    static_assert(toobig<uintptr_t>(), ""); // expected-error-re {{{{(static_assert|static assertion)}} expression is not an integral constant expression}}
+
+    return 0;
 }
diff --git a/libcxx/test/std/numerics/numeric.ops/accumulate/accumulate_op.pass.cpp b/libcxx/test/std/numerics/numeric.ops/accumulate/accumulate_op.pass.cpp
--- a/libcxx/test/std/numerics/numeric.ops/accumulate/accumulate_op.pass.cpp
+++ b/libcxx/test/std/numerics/numeric.ops/accumulate/accumulate_op.pass.cpp
@@ -63,7 +63,7 @@
 // don't have the support yet. In these cases omit the constexpr test.
 // FIXME Remove constexpr string workaround introduced in D90569
 #if TEST_STD_VER > 17 && \
-	(!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
+    (!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
 void
 #else
 TEST_CONSTEXPR_CXX20 void
@@ -114,8 +114,8 @@
     // don't have the support yet. In these cases omit the constexpr test.
     // FIXME Remove constexpr string workaround introduced in D90569
 #if TEST_STD_VER > 17 && \
-	(!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
-	if (!std::is_constant_evaluated())
+    (!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
+    if (!std::is_constant_evaluated())
 #endif
     test_string();
 
diff --git a/libcxx/test/std/numerics/numeric.ops/adjacent.difference/adjacent_difference_op.pass.cpp b/libcxx/test/std/numerics/numeric.ops/adjacent.difference/adjacent_difference_op.pass.cpp
--- a/libcxx/test/std/numerics/numeric.ops/adjacent.difference/adjacent_difference_op.pass.cpp
+++ b/libcxx/test/std/numerics/numeric.ops/adjacent.difference/adjacent_difference_op.pass.cpp
@@ -70,7 +70,7 @@
 // don't have the support yet. In these cases omit the constexpr test.
 // FIXME Remove constexpr string workaround introduced in D90569
 #if TEST_STD_VER > 17 && \
-	(!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
+    (!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
 void
 #else
 TEST_CONSTEXPR_CXX20 void
@@ -183,8 +183,8 @@
     // don't have the support yet. In these cases omit the constexpr test.
     // FIXME Remove constexpr string workaround introduced in D90569
 #if TEST_STD_VER > 17 && \
-	(!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
-	if (!std::is_constant_evaluated())
+    (!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
+    if (!std::is_constant_evaluated())
 #endif
     test_string();
 
diff --git a/libcxx/test/std/numerics/numeric.ops/inner.product/inner_product_comp.pass.cpp b/libcxx/test/std/numerics/numeric.ops/inner.product/inner_product_comp.pass.cpp
--- a/libcxx/test/std/numerics/numeric.ops/inner.product/inner_product_comp.pass.cpp
+++ b/libcxx/test/std/numerics/numeric.ops/inner.product/inner_product_comp.pass.cpp
@@ -77,7 +77,7 @@
 // don't have the support yet. In these cases omit the constexpr test.
 // FIXME Remove constexpr string workaround introduced in D90569
 #if TEST_STD_VER > 17 && \
-	(!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
+    (!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
 void
 #else
 TEST_CONSTEXPR_CXX20 void
@@ -154,8 +154,8 @@
     // don't have the support yet. In these cases omit the constexpr test.
     // FIXME Remove constexpr string workaround introduced in D90569
 #if TEST_STD_VER > 17 && \
-	(!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
-	if (!std::is_constant_evaluated())
+    (!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
+    if (!std::is_constant_evaluated())
 #endif
     test_string();
 
diff --git a/libcxx/test/std/numerics/numeric.ops/numeric.ops.midpoint/midpoint.float.pass.cpp b/libcxx/test/std/numerics/numeric.ops/numeric.ops.midpoint/midpoint.float.pass.cpp
--- a/libcxx/test/std/numerics/numeric.ops/numeric.ops.midpoint/midpoint.float.pass.cpp
+++ b/libcxx/test/std/numerics/numeric.ops/numeric.ops.midpoint/midpoint.float.pass.cpp
@@ -95,31 +95,31 @@
 
 #if defined(__PPC__) && (defined(__LONG_DOUBLE_128__) && __LONG_DOUBLE_128__) &&                                       \
     !(defined(__LONG_DOUBLE_IEEE128__) && __LONG_DOUBLE_IEEE128__)
-//	For 128 bit long double implemented as 2 doubles on PowerPC,
-//	nextafterl() of libm gives imprecise results which fails the
-//	midpoint() tests below. So skip the test for this case.
+//  For 128 bit long double implemented as 2 doubles on PowerPC,
+//  nextafterl() of libm gives imprecise results which fails the
+//  midpoint() tests below. So skip the test for this case.
     if constexpr (sizeof(T) != 16)
 #endif
     {
-	//  Since there's nothing in between, the midpoint has to be one or the other
-		T res;
-		res = std::midpoint(d0, d1);
-		assert(res == d0 || res == d1);
-		assert(d0 <= res);
-		assert(res <= d1);
-		res = std::midpoint(d1, d0);
-		assert(res == d0 || res == d1);
-		assert(d0 <= res);
-		assert(res <= d1);
-
-		res = std::midpoint(d1, d2);
-		assert(res == d1 || res == d2);
-		assert(d1 <= res);
-		assert(res <= d2);
-		res = std::midpoint(d2, d1);
-		assert(res == d1 || res == d2);
-		assert(d1 <= res);
-		assert(res <= d2);
+    //  Since there's nothing in between, the midpoint has to be one or the other
+        T res;
+        res = std::midpoint(d0, d1);
+        assert(res == d0 || res == d1);
+        assert(d0 <= res);
+        assert(res <= d1);
+        res = std::midpoint(d1, d0);
+        assert(res == d0 || res == d1);
+        assert(d0 <= res);
+        assert(res <= d1);
+
+        res = std::midpoint(d1, d2);
+        assert(res == d1 || res == d2);
+        assert(d1 <= res);
+        assert(res <= d2);
+        res = std::midpoint(d2, d1);
+        assert(res == d1 || res == d2);
+        assert(d1 <= res);
+        assert(res <= d2);
     }
 }
 
diff --git a/libcxx/test/std/numerics/numeric.ops/partial.sum/partial_sum_op.pass.cpp b/libcxx/test/std/numerics/numeric.ops/partial.sum/partial_sum_op.pass.cpp
--- a/libcxx/test/std/numerics/numeric.ops/partial.sum/partial_sum_op.pass.cpp
+++ b/libcxx/test/std/numerics/numeric.ops/partial.sum/partial_sum_op.pass.cpp
@@ -69,7 +69,7 @@
 // don't have the support yet. In these cases omit the constexpr test.
 // FIXME Remove constexpr string workaround introduced in D90569
 #if TEST_STD_VER > 17 && \
-	(!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
+    (!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
 void
 #else
 TEST_CONSTEXPR_CXX20 void
@@ -137,8 +137,8 @@
     // don't have the support yet. In these cases omit the constexpr test.
     // FIXME Remove constexpr string workaround introduced in D90569
 #if TEST_STD_VER > 17 && \
-	(!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
-	if (!std::is_constant_evaluated())
+    (!defined(__cpp_lib_constexpr_string) || __cpp_lib_constexpr_string < 201907L)
+    if (!std::is_constant_evaluated())
 #endif
     test_string();
 
diff --git a/libcxx/test/std/ranges/range.adaptors/range.join.view/begin.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.join.view/begin.pass.cpp
--- a/libcxx/test/std/ranges/range.adaptors/range.join.view/begin.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.join.view/begin.pass.cpp
@@ -10,7 +10,7 @@
 
 // constexpr auto begin();
 // constexpr auto begin() const
-//    requires input_­range<const V> &&
+//    requires input_range<const V> &&
 //             is_reference_v<range_reference_t<const V>>;
 
 #include <cassert>
@@ -119,7 +119,7 @@
     static_assert(HasConstBegin<decltype(jv)>);
   }
 
-  // !input_­range<const V>
+  // !input_range<const V>
   {
     std::ranges::join_view jv{ConstNotRange{}};
     static_assert(!HasConstBegin<decltype(jv)>);
diff --git a/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/ctor.other.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/ctor.other.pass.cpp
--- a/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/ctor.other.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/ctor.other.pass.cpp
@@ -10,8 +10,8 @@
 
 // constexpr iterator(iterator<!Const> i)
 //             requires Const &&
-//                      convertible_­to<iterator_t<V>, OuterIter> &&
-//                      convertible_­to<iterator_t<InnerRng>, InnerIter>;
+//                      convertible_to<iterator_t<V>, OuterIter> &&
+//                      convertible_to<iterator_t<InnerRng>, InnerIter>;
 
 #include <cassert>
 #include <ranges>
diff --git a/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/decrement.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/decrement.pass.cpp
--- a/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/decrement.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/decrement.pass.cpp
@@ -9,13 +9,13 @@
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 
 // constexpr iterator& operator--();
-//              requires ref-is-glvalue && bidirectional_­range<Base> &&
-//                       bidirectional_­range<range_reference_t<Base>> &&
-//                       common_­range<range_reference_t<Base>>;
+//              requires ref-is-glvalue && bidirectional_range<Base> &&
+//                       bidirectional_range<range_reference_t<Base>> &&
+//                       common_range<range_reference_t<Base>>;
 // constexpr iterator operator--(int);
-//              requires ref-is-glvalue && bidirectional_­range<Base> &&
-//                       bidirectional_­range<range_reference_t<Base>> &&
-//                       common_­range<range_reference_t<Base>>;
+//              requires ref-is-glvalue && bidirectional_range<Base> &&
+//                       bidirectional_range<range_reference_t<Base>> &&
+//                       common_range<range_reference_t<Base>>;
 
 #include <cassert>
 #include <ranges>
@@ -124,7 +124,7 @@
   }
 
   {
-    // !bidirectional_­range<Base>
+    // !bidirectional_range<Base>
     BidiCommonInner inners[2] = {buffer[0], buffer[1]};
     SimpleForwardCommonOuter<BidiCommonInner> outer{inners};
     std::ranges::join_view jv(outer);
@@ -132,7 +132,7 @@
   }
 
   {
-    // !bidirectional_­range<range_reference_t<Base>>
+    // !bidirectional_range<range_reference_t<Base>>
     ForwardCommonInner inners[2] = {buffer[0], buffer[1]};
     std::ranges::join_view jv(inners);
     noDecrementTest(jv);
@@ -141,7 +141,7 @@
   {
     // LWG3313 `join_view::iterator::operator--` is incorrectly constrained
     // `join_view::iterator` should not have `operator--` if
-    // !common_­range<range_reference_t<Base>>
+    // !common_range<range_reference_t<Base>>
     BidiNonCommonInner inners[2] = {buffer[0], buffer[1]};
     std::ranges::join_view jv(inners);
     auto iter = jv.begin();
diff --git a/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/increment.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/increment.pass.cpp
--- a/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/increment.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.join.view/iterator/increment.pass.cpp
@@ -11,7 +11,7 @@
 // constexpr iterator& operator++();
 // constexpr void operator++(int);
 // constexpr iterator operator++(int)
-//            requires ref-is-glvalue && forward_­range<Base> &&
+//            requires ref-is-glvalue && forward_range<Base> &&
 //                     forward_range<range_reference_t<Base>>;
 
 #include <cassert>
@@ -186,7 +186,7 @@
   }
 
   {
-    // !forward_­range<Base>
+    // !forward_range<Base>
     BufferView<int*> inners[2] = {buffer1[0], buffer1[1]};
     using Outer = SimpleInputCommonOuter<BufferView<int*>>;
     std::ranges::join_view jv{Outer(inners)};
diff --git a/libcxx/test/std/ranges/range.adaptors/range.join.view/sentinel/ctor.other.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.join.view/sentinel/ctor.other.pass.cpp
--- a/libcxx/test/std/ranges/range.adaptors/range.join.view/sentinel/ctor.other.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.join.view/sentinel/ctor.other.pass.cpp
@@ -9,7 +9,7 @@
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 
 // constexpr sentinel(sentinel<!Const> s);
-//             requires Const && convertible_­to<sentinel_t<V>, sentinel_t<Base>>;
+//             requires Const && convertible_to<sentinel_t<V>, sentinel_t<Base>>;
 
 #include <cassert>
 #include <ranges>
diff --git a/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/arithmetic.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/arithmetic.pass.cpp
--- a/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/arithmetic.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/arithmetic.pass.cpp
@@ -16,7 +16,7 @@
 // x - y;
 // All the arithmetic operators have the constraint `requires all-random-access<Const, Views...>;`,
 // except `operator-(x, y)` which instead has the constraint
-//    `requires (sized_­sentinel_­for<iterator_t<maybe-const<Const, Views>>,
+//    `requires (sized_sentinel_for<iterator_t<maybe-const<Const, Views>>,
 //                                  iterator_t<maybe-const<Const, Views>>> && ...);`
 
 #include <ranges>
diff --git a/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/compare.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/compare.pass.cpp
--- a/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/compare.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/compare.pass.cpp
@@ -9,7 +9,7 @@
 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
 
 // friend constexpr bool operator==(const iterator& x, const iterator& y)
-//   requires (equality_­comparable<iterator_t<maybe-const<Const, Views>>> && ...);
+//   requires (equality_comparable<iterator_t<maybe-const<Const, Views>>> && ...);
 // friend constexpr bool operator<(const iterator& x, const iterator& y)
 //   requires all-random-access<Const, Views...>;
 // friend constexpr bool operator>(const iterator& x, const iterator& y)
@@ -20,7 +20,7 @@
 //   requires all-random-access<Const, Views...>;
 // friend constexpr auto operator<=>(const iterator& x, const iterator& y)
 //   requires all-random-access<Const, Views...> &&
-//            (three_­way_­comparable<iterator_t<maybe-const<Const, Views>>> && ...);
+//            (three_way_comparable<iterator_t<maybe-const<Const, Views>>> && ...);
 
 #include <ranges>
 #include <compare>
diff --git a/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/ctor.other.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/ctor.other.pass.cpp
--- a/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/ctor.other.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/ctor.other.pass.cpp
@@ -9,7 +9,7 @@
 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
 
 // constexpr iterator(iterator<!Const> i)
-//       requires Const && (convertible_­to<iterator_t<Views>,
+//       requires Const && (convertible_to<iterator_t<Views>,
 //                                         iterator_t<maybe-const<Const, Views>>> && ...);
 
 #include <ranges>
diff --git a/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/iter_swap.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/iter_swap.pass.cpp
--- a/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/iter_swap.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.zip/iterator/iter_swap.pass.cpp
@@ -9,7 +9,7 @@
 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
 
 // friend constexpr void iter_swap(const iterator& l, const iterator& r) noexcept(see below)
-//   requires (indirectly_­swappable<iterator_t<maybe-const<Const, Views>>> && ...);
+//   requires (indirectly_swappable<iterator_t<maybe-const<Const, Views>>> && ...);
 
 #include <array>
 #include <cassert>
diff --git a/libcxx/test/std/ranges/range.adaptors/range.zip/sentinel/minus.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.zip/sentinel/minus.pass.cpp
--- a/libcxx/test/std/ranges/range.adaptors/range.zip/sentinel/minus.pass.cpp
+++ b/libcxx/test/std/ranges/range.adaptors/range.zip/sentinel/minus.pass.cpp
@@ -12,7 +12,7 @@
 // requires(sized_sentinel_for<sentinel_t<maybe-const<Const, Views>>,
 //                             iterator_t<maybe-const<OtherConst, Views>>>&&...)
 // friend constexpr common_type_t<range_difference_t<maybe-const<OtherConst, Views>>...>
-// 	operator-(const iterator<OtherConst>&, const sentinel&)
+//   operator-(const iterator<OtherConst>&, const sentinel&)
 //
 // template <bool OtherConst>
 // requires(sized_sentinel_for<sentinel_t<maybe-const<Const, Views>>,
diff --git a/libcxx/test/std/re/re.regex/re.regex.construct/deduct.fail.cpp b/libcxx/test/std/re/re.regex/re.regex.construct/deduct.fail.cpp
--- a/libcxx/test/std/re/re.regex/re.regex.construct/deduct.fail.cpp
+++ b/libcxx/test/std/re/re.regex/re.regex.construct/deduct.fail.cpp
@@ -9,10 +9,10 @@
 // <regex>
 // UNSUPPORTED: c++03, c++11, c++14
 
-// template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
-//    vector(InputIterator, InputIterator, Allocator = Allocator())
-//    -> vector<typename iterator_traits<InputIterator>::value_type, Allocator>;
-//
+// template<class ForwardIterator>
+// basic_regex(ForwardIterator, ForwardIterator,
+//             regex_constants::syntax_option_type = regex_constants::ECMAScript)
+// -> basic_regex<typename iterator_traits<ForwardIterator>::value_type>;
 
 #include <regex>
 #include <string>
@@ -23,21 +23,18 @@
 
 int main(int, char**)
 {
-//  Test the explicit deduction guides
+    // Test the explicit deduction guides
     {
-//	basic_regex(ForwardIterator, ForwardIterator)
-//  <int> is not an iterator
+    // basic_regex(ForwardIterator, ForwardIterator)
+    // <int> is not an iterator
     std::basic_regex re(23, 34);   // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'basic_regex'}}
     }
 
     {
-//	basic_regex(ForwardIterator, ForwardIterator, flag_type)
-//  <double> is not an iterator
+    // basic_regex(ForwardIterator, ForwardIterator, flag_type)
+    // <double> is not an iterator
     std::basic_regex re(23.0, 34.0, std::regex_constants::basic);   // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'basic_regex'}}
     }
 
-//  Test the implicit deduction guides
-
-
-  return 0;
+    return 0;
 }
diff --git a/libcxx/test/std/time/time.hms/time.hms.members/is_negative.pass.cpp b/libcxx/test/std/time/time.hms/time.hms.members/is_negative.pass.cpp
--- a/libcxx/test/std/time/time.hms/time.hms.members/is_negative.pass.cpp
+++ b/libcxx/test/std/time/time.hms/time.hms.members/is_negative.pass.cpp
@@ -23,34 +23,34 @@
 template <typename Duration>
 constexpr bool check_neg(Duration d)
 {
-	ASSERT_SAME_TYPE(bool, decltype(std::declval<std::chrono::hh_mm_ss<Duration>>().is_negative()));
-	ASSERT_NOEXCEPT(                std::declval<std::chrono::hh_mm_ss<Duration>>().is_negative());
-	return std::chrono::hh_mm_ss<Duration>(d).is_negative();
+    ASSERT_SAME_TYPE(bool, decltype(std::declval<std::chrono::hh_mm_ss<Duration>>().is_negative()));
+    ASSERT_NOEXCEPT(                std::declval<std::chrono::hh_mm_ss<Duration>>().is_negative());
+    return std::chrono::hh_mm_ss<Duration>(d).is_negative();
 }
 
 int main(int, char**)
 {
-	using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;
+    using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;
 
-	static_assert(!check_neg(std::chrono::minutes( 1)), "");
-	static_assert( check_neg(std::chrono::minutes(-1)), "");
+    static_assert(!check_neg(std::chrono::minutes( 1)), "");
+    static_assert( check_neg(std::chrono::minutes(-1)), "");
 
-	assert(!check_neg(std::chrono::seconds( 5000)));
-	assert( check_neg(std::chrono::seconds(-5000)));
-	assert(!check_neg(std::chrono::minutes( 5000)));
-	assert( check_neg(std::chrono::minutes(-5000)));
-	assert(!check_neg(std::chrono::hours( 11)));
-	assert( check_neg(std::chrono::hours(-11)));
+    assert(!check_neg(std::chrono::seconds( 5000)));
+    assert( check_neg(std::chrono::seconds(-5000)));
+    assert(!check_neg(std::chrono::minutes( 5000)));
+    assert( check_neg(std::chrono::minutes(-5000)));
+    assert(!check_neg(std::chrono::hours( 11)));
+    assert( check_neg(std::chrono::hours(-11)));
 
-	assert(!check_neg(std::chrono::milliseconds( 123456789LL)));
-	assert( check_neg(std::chrono::milliseconds(-123456789LL)));
-	assert(!check_neg(std::chrono::microseconds( 123456789LL)));
-	assert( check_neg(std::chrono::microseconds(-123456789LL)));
-	assert(!check_neg(std::chrono::nanoseconds( 123456789LL)));
-	assert( check_neg(std::chrono::nanoseconds(-123456789LL)));
+    assert(!check_neg(std::chrono::milliseconds( 123456789LL)));
+    assert( check_neg(std::chrono::milliseconds(-123456789LL)));
+    assert(!check_neg(std::chrono::microseconds( 123456789LL)));
+    assert( check_neg(std::chrono::microseconds(-123456789LL)));
+    assert(!check_neg(std::chrono::nanoseconds( 123456789LL)));
+    assert( check_neg(std::chrono::nanoseconds(-123456789LL)));
 
-	assert(!check_neg(microfortnights( 10000)));
-	assert( check_neg(microfortnights(-10000)));
+    assert(!check_neg(microfortnights( 10000)));
+    assert( check_neg(microfortnights(-10000)));
 
-	return 0;
+    return 0;
 }
diff --git a/libcxx/test/std/time/time.hms/time.hms.members/precision.pass.cpp b/libcxx/test/std/time/time.hms/time.hms.members/precision.pass.cpp
--- a/libcxx/test/std/time/time.hms/time.hms.members/precision.pass.cpp
+++ b/libcxx/test/std/time/time.hms/time.hms.members/precision.pass.cpp
@@ -26,57 +26,57 @@
 #include "test_macros.h"
 
 constexpr unsigned long long powers[] = {
-	1ULL,
-	10ULL,
-	100ULL,
-	1000ULL,
-	10000ULL,
-	100000ULL,
-	1000000ULL,
-	10000000ULL,
-	100000000ULL,
-	1000000000ULL,
-	10000000000ULL,
-	100000000000ULL,
-	1000000000000ULL,
-	10000000000000ULL,
-	100000000000000ULL,
-	1000000000000000ULL,
-	10000000000000000ULL,
-	100000000000000000ULL,
-	1000000000000000000ULL,
-	10000000000000000000ULL
+    1ULL,
+    10ULL,
+    100ULL,
+    1000ULL,
+    10000ULL,
+    100000ULL,
+    1000000ULL,
+    10000000ULL,
+    100000000ULL,
+    1000000000ULL,
+    10000000000ULL,
+    100000000000ULL,
+    1000000000000ULL,
+    10000000000000ULL,
+    100000000000000ULL,
+    1000000000000000ULL,
+    10000000000000000ULL,
+    100000000000000000ULL,
+    1000000000000000000ULL,
+    10000000000000000000ULL
 };
 
 template <typename Duration, unsigned width>
 constexpr bool check_precision()
 {
-	using HMS = std::chrono::hh_mm_ss<Duration>;
-	using CT  = std::common_type_t<typename Duration::rep, std::chrono::seconds::rep>;
-	using Pre = std::chrono::duration<CT, std::ratio<1, powers[width]>>;
-	return std::is_same_v<typename HMS::precision, Pre>;
+    using HMS = std::chrono::hh_mm_ss<Duration>;
+    using CT  = std::common_type_t<typename Duration::rep, std::chrono::seconds::rep>;
+    using Pre = std::chrono::duration<CT, std::ratio<1, powers[width]>>;
+    return std::is_same_v<typename HMS::precision, Pre>;
 }
 
 int main(int, char**)
 {
-	using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;
+    using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;
 
-	static_assert( check_precision<std::chrono::hours,                               0>(), "");
-	static_assert( check_precision<std::chrono::minutes,                             0>(), "");
-	static_assert( check_precision<std::chrono::seconds,                             0>(), "");
-	static_assert( check_precision<std::chrono::milliseconds,                        3>(), "");
-	static_assert( check_precision<std::chrono::microseconds,                        6>(), "");
-	static_assert( check_precision<std::chrono::nanoseconds,                         9>(), "");
-	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   2>>, 1>(), "");
-	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   3>>, 6>(), "");
-	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   4>>, 2>(), "");
-	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   5>>, 1>(), "");
-	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   6>>, 6>(), "");
-	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   7>>, 6>(), "");
-	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   8>>, 3>(), "");
-	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   9>>, 6>(), "");
-	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,  10>>, 1>(), "");
-	static_assert( check_precision<microfortnights,                                  4>(), "");
+    static_assert( check_precision<std::chrono::hours,                               0>(), "");
+    static_assert( check_precision<std::chrono::minutes,                             0>(), "");
+    static_assert( check_precision<std::chrono::seconds,                             0>(), "");
+    static_assert( check_precision<std::chrono::milliseconds,                        3>(), "");
+    static_assert( check_precision<std::chrono::microseconds,                        6>(), "");
+    static_assert( check_precision<std::chrono::nanoseconds,                         9>(), "");
+    static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   2>>, 1>(), "");
+    static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   3>>, 6>(), "");
+    static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   4>>, 2>(), "");
+    static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   5>>, 1>(), "");
+    static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   6>>, 6>(), "");
+    static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   7>>, 6>(), "");
+    static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   8>>, 3>(), "");
+    static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   9>>, 6>(), "");
+    static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,  10>>, 1>(), "");
+    static_assert( check_precision<microfortnights,                                  4>(), "");
 
-	return 0;
+    return 0;
 }
diff --git a/libcxx/test/std/time/time.hms/time.hms.members/width.pass.cpp b/libcxx/test/std/time/time.hms/time.hms.members/width.pass.cpp
--- a/libcxx/test/std/time/time.hms/time.hms.members/width.pass.cpp
+++ b/libcxx/test/std/time/time.hms/time.hms.members/width.pass.cpp
@@ -15,7 +15,7 @@
 //     static unsigned constexpr fractional_width = see below;
 //     using precision                            = see below;
 //
-//	fractional_width is the number of fractional decimal digits represented by precision.
+//  fractional_width is the number of fractional decimal digits represented by precision.
 //  fractional_width has the value of the smallest possible integer in the range [0, 18]
 //    such that precision will exactly represent all values of Duration.
 //  If no such value of fractional_width exists, then fractional_width is 6.
@@ -30,30 +30,30 @@
 template <typename Duration, unsigned width>
 constexpr bool check_width()
 {
-	using HMS = std::chrono::hh_mm_ss<Duration>;
-	return HMS::fractional_width == width;
+    using HMS = std::chrono::hh_mm_ss<Duration>;
+    return HMS::fractional_width == width;
 }
 
 int main(int, char**)
 {
-	using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;
-
-	static_assert( check_width<std::chrono::hours,                               0>(), "");
-	static_assert( check_width<std::chrono::minutes,                             0>(), "");
-	static_assert( check_width<std::chrono::seconds,                             0>(), "");
-	static_assert( check_width<std::chrono::milliseconds,                        3>(), "");
-	static_assert( check_width<std::chrono::microseconds,                        6>(), "");
-	static_assert( check_width<std::chrono::nanoseconds,                         9>(), "");
-	static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   2>>, 1>(), "");
-	static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   3>>, 6>(), "");
-	static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   4>>, 2>(), "");
-	static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   5>>, 1>(), "");
-	static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   6>>, 6>(), "");
-	static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   7>>, 6>(), "");
-	static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   8>>, 3>(), "");
-	static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   9>>, 6>(), "");
-	static_assert( check_width<std::chrono::duration<int, std::ratio<  1,  10>>, 1>(), "");
-	static_assert( check_width<microfortnights,                                  4>(), "");
-
-	return 0;
+    using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;
+
+    static_assert( check_width<std::chrono::hours,                               0>(), "");
+    static_assert( check_width<std::chrono::minutes,                             0>(), "");
+    static_assert( check_width<std::chrono::seconds,                             0>(), "");
+    static_assert( check_width<std::chrono::milliseconds,                        3>(), "");
+    static_assert( check_width<std::chrono::microseconds,                        6>(), "");
+    static_assert( check_width<std::chrono::nanoseconds,                         9>(), "");
+    static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   2>>, 1>(), "");
+    static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   3>>, 6>(), "");
+    static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   4>>, 2>(), "");
+    static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   5>>, 1>(), "");
+    static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   6>>, 6>(), "");
+    static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   7>>, 6>(), "");
+    static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   8>>, 3>(), "");
+    static_assert( check_width<std::chrono::duration<int, std::ratio<  1,   9>>, 6>(), "");
+    static_assert( check_width<std::chrono::duration<int, std::ratio<  1,  10>>, 1>(), "");
+    static_assert( check_width<microfortnights,                                  4>(), "");
+
+    return 0;
 }
diff --git a/libcxx/test/std/time/time.hms/time.12/is_am.pass.cpp b/libcxx/test/std/time/time.hms/time.12/is_am.pass.cpp
--- a/libcxx/test/std/time/time.hms/time.12/is_am.pass.cpp
+++ b/libcxx/test/std/time/time.hms/time.12/is_am.pass.cpp
@@ -19,19 +19,19 @@
 
 int main(int, char**)
 {
-	using hours = std::chrono::hours;
-	ASSERT_SAME_TYPE(bool, decltype(std::chrono::is_am(std::declval<hours>())));
-	ASSERT_NOEXCEPT(                std::chrono::is_am(std::declval<hours>()));
+    using hours = std::chrono::hours;
+    ASSERT_SAME_TYPE(bool, decltype(std::chrono::is_am(std::declval<hours>())));
+    ASSERT_NOEXCEPT(                std::chrono::is_am(std::declval<hours>()));
 
-	static_assert( std::chrono::is_am(hours( 0)), "");
-	static_assert( std::chrono::is_am(hours(11)), "");
-	static_assert(!std::chrono::is_am(hours(12)), "");
-	static_assert(!std::chrono::is_am(hours(23)), "");
+    static_assert( std::chrono::is_am(hours( 0)), "");
+    static_assert( std::chrono::is_am(hours(11)), "");
+    static_assert(!std::chrono::is_am(hours(12)), "");
+    static_assert(!std::chrono::is_am(hours(23)), "");
 
-	for (int i = 0; i < 12; ++i)
-		assert( std::chrono::is_am(hours(i)));
-	for (int i = 12; i < 24; ++i)
-		assert(!std::chrono::is_am(hours(i)));
+    for (int i = 0; i < 12; ++i)
+        assert( std::chrono::is_am(hours(i)));
+    for (int i = 12; i < 24; ++i)
+        assert(!std::chrono::is_am(hours(i)));
 
     return 0;
 }
diff --git a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/minus.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/minus.pass.cpp
@@ -17,7 +17,7 @@
 //   Returns: If x.ok() == true and y.ok() == true, returns a value m in the range
 //   [months{0}, months{11}] satisfying y + m == x.
 //   Otherwise the value returned is unspecified.
-//   [Example: January - February == months{11}. —end example]
+//   [Example: January - February == months{11}. -end example]
 
 #include <chrono>
 #include <type_traits>
diff --git a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/plus.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/plus.pass.cpp
@@ -20,8 +20,8 @@
 //   [Note: Given a divisor of 12, Euclidean division truncates towards negative infinity
 //   and always produces a remainder in the range of [0, 11].
 //   Assuming no overflow in the signed summation, this operation results in a month
-//   holding a value in the range [1, 12] even if !x.ok(). —end note]
-//   [Example: February + months{11} == January. —end example]
+//   holding a value in the range [1, 12] even if !x.ok(). -end note]
+//   [Example: February + months{11} == January. -end example]
 
 
 
diff --git a/libcxx/test/std/time/time.cal/time.cal.operators/month_day.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.operators/month_day.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.operators/month_day.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.operators/month_day.pass.cpp
@@ -30,7 +30,6 @@
 //   operator/(const day& d, int m) noexcept;
 // Returns: month(m) / d.
 
-
 #include <chrono>
 #include <type_traits>
 #include <cassert>
diff --git a/libcxx/test/std/time/time.cal/time.cal.operators/month_day_last.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.operators/month_day_last.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.operators/month_day_last.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.operators/month_day_last.pass.cpp
@@ -28,7 +28,7 @@
 //
 //
 // [Note: A month_day_last object can be constructed using the expression m/last or last/m,
-//     where m is an expression of type month. — end note]
+//     where m is an expression of type month. - end note]
 // [Example:
 //     constexpr auto mdl = February/last; // mdl is the last day of February of an as yet unspecified year
 //     static_assert(mdl.month() == February);
diff --git a/libcxx/test/std/time/time.cal/time.cal.operators/month_weekday.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.operators/month_weekday.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.operators/month_weekday.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.operators/month_weekday.pass.cpp
@@ -26,16 +26,12 @@
 //   operator/(const weekday_indexed& wdi, int m) noexcept;
 // Returns: month(m) / wdi.
 
-
 //
 // [Example:
 // constexpr auto mwd = February/Tuesday[3]; // mwd is the third Tuesday of February of an as yet unspecified year
 //      static_assert(mwd.month() == February);
 //      static_assert(mwd.weekday_indexed() == Tuesday[3]);
-// —end example]
-
-
-
+// -end example]
 
 #include <chrono>
 #include <type_traits>
diff --git a/libcxx/test/std/time/time.cal/time.cal.operators/month_weekday_last.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.operators/month_weekday_last.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.operators/month_weekday_last.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.operators/month_weekday_last.pass.cpp
@@ -26,9 +26,6 @@
 //   operator/(const weekday_last& wdl, int m) noexcept;
 // Returns: month(m) / wdl.
 
-
-
-
 #include <chrono>
 #include <type_traits>
 #include <cassert>
diff --git a/libcxx/test/std/time/time.cal/time.cal.operators/year_month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.operators/year_month.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.operators/year_month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.operators/year_month.pass.cpp
@@ -16,8 +16,6 @@
 // constexpr year_month operator/(const year& y, int m) noexcept;
 //   Returns: y / month(m).
 
-
-
 #include <chrono>
 #include <type_traits>
 #include <cassert>
diff --git a/libcxx/test/std/time/time.cal/time.cal.operators/year_month_day.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.operators/year_month_day.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.operators/year_month_day.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.operators/year_month_day.pass.cpp
@@ -34,7 +34,6 @@
 //   operator/(const month_day& md, int y) noexcept;
 // Returns: year(y) / md.
 
-
 #include <chrono>
 #include <type_traits>
 #include <cassert>
diff --git a/libcxx/test/std/time/time.cal/time.cal.operators/year_month_day_last.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.operators/year_month_day_last.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.operators/year_month_day_last.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.operators/year_month_day_last.pass.cpp
@@ -30,7 +30,6 @@
 //   operator/(const month_day_last& mdl, int y) noexcept;
 // Returns: year(y) / mdl.
 
-
 #include <chrono>
 #include <type_traits>
 #include <cassert>
diff --git a/libcxx/test/std/time/time.cal/time.cal.operators/year_month_weekday_last.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.operators/year_month_weekday_last.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.operators/year_month_weekday_last.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.operators/year_month_weekday_last.pass.cpp
@@ -30,8 +30,6 @@
 //   operator/(const month_weekday_last& mwdl, int y) noexcept;
 // Returns: year(y) / mwdl.
 
-
-
 #include <chrono>
 #include <type_traits>
 #include <cassert>
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.local_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.local_days.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.local_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.local_days.pass.cpp
@@ -21,7 +21,7 @@
 //
 // [Example:
 //  If dp represents 1970-01-01, the constructed weekday represents Thursday by storing 4 in wd_.
-// —end example]
+// -end example]
 
 #include <chrono>
 #include <type_traits>
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.sys_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.sys_days.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.sys_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.sys_days.pass.cpp
@@ -21,7 +21,7 @@
 //
 // [Example:
 //  If dp represents 1970-01-01, the constructed weekday represents Thursday by storing 4 in wd_.
-// —end example]
+// -end example]
 
 #include <chrono>
 #include <type_traits>
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/minus.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/minus.pass.cpp
@@ -17,7 +17,7 @@
 // Returns: If x.ok() == true and y.ok() == true, returns a value d in the range
 //    [days{0}, days{6}] satisfying y + d == x.
 // Otherwise the value returned is unspecified.
-// [Example: Sunday - Monday == days{6}. —end example]
+// [Example: Sunday - Monday == days{6}. -end example]
 
 #include <chrono>
 #include <type_traits>
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/plus.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/plus.pass.cpp
@@ -20,10 +20,8 @@
 //   [Note: Given a divisor of 12, Euclidean division truncates towards negative infinity
 //   and always produces a remainder in the range of [0, 6].
 //   Assuming no overflow in the signed summation, this operation results in a weekday
-//   holding a value in the range [0, 6] even if !x.ok(). —end note]
-//   [Example: Monday + days{6} == Sunday. —end example]
-
-
+//   holding a value in the range [0, 6] even if !x.ok(). -end note]
+//   [Example: Monday + days{6} == Sunday. -end example]
 
 #include <chrono>
 #include <type_traits>
diff --git a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/minus.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/minus.pass.cpp
@@ -17,7 +17,7 @@
 //   Returns: If x.ok() == true and y.ok() == true, returns a value m in the range
 //   [years{0}, years{11}] satisfying y + m == x.
 //   Otherwise the value returned is unspecified.
-//   [Example: January - February == years{11}. —end example]
+//   [Example: January - February == years{11}. -end example]
 
 #include <chrono>
 #include <type_traits>
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.local_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.local_days.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.local_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.local_days.pass.cpp
@@ -27,7 +27,7 @@
 //   static_assert(year_month_day{local_days{2017y/January/0}}  == 2016y/December/31);
 //   static_assert(year_month_day{local_days{2017y/January/31}} == 2017y/January/31);
 //   static_assert(year_month_day{local_days{2017y/January/32}} == 2017y/February/1);
-// —end example]
+// -end example]
 
 #include <chrono>
 #include <type_traits>
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.sys_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.sys_days.pass.cpp
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.sys_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.sys_days.pass.cpp
@@ -27,7 +27,7 @@
 //   static_assert(year_month_day{sys_days{2017y/January/0}}  == 2016y/December/31);
 //   static_assert(year_month_day{sys_days{2017y/January/31}} == 2017y/January/31);
 //   static_assert(year_month_day{sys_days{2017y/January/32}} == 2017y/February/1);
-// —end example]
+// -end example]
 
 #include <chrono>
 #include <type_traits>
diff --git a/libcxx/test/std/time/time.clock/time.clock.system/local_time.types.pass.cpp b/libcxx/test/std/time/time.clock/time.clock.system/local_time.types.pass.cpp
--- a/libcxx/test/std/time/time.clock/time.clock.system/local_time.types.pass.cpp
+++ b/libcxx/test/std/time/time.clock/time.clock.system/local_time.types.pass.cpp
@@ -17,8 +17,8 @@
 
 // [Example:
 //   sys_seconds{sys_days{1970y/January/1}}.time_since_epoch() is 0s.
-//   sys_seconds{sys_days{2000y/January/1}}.time_since_epoch() is 946’684’800s, which is 10’957 * 86’400s.
-// —end example]
+//   sys_seconds{sys_days{2000y/January/1}}.time_since_epoch() is 946'684'800s, which is 10'957 * 86'400s.
+// - end example]
 
 
 #include <chrono>
diff --git a/libcxx/test/std/time/time.clock/time.clock.system/sys.time.types.pass.cpp b/libcxx/test/std/time/time.clock/time.clock.system/sys.time.types.pass.cpp
--- a/libcxx/test/std/time/time.clock/time.clock.system/sys.time.types.pass.cpp
+++ b/libcxx/test/std/time/time.clock/time.clock.system/sys.time.types.pass.cpp
@@ -16,8 +16,8 @@
 
 // [Example:
 //   sys_seconds{sys_days{1970y/January/1}}.time_since_epoch() is 0s.
-//   sys_seconds{sys_days{2000y/January/1}}.time_since_epoch() is 946’684’800s, which is 10’957 * 86’400s.
-// —end example]
+//   sys_seconds{sys_days{2000y/January/1}}.time_since_epoch() is 946'684'800s, which is 10'957 * 86'400s.
+// - end example]
 
 
 #include <chrono>
diff --git a/libcxx/test/std/utilities/format/format.functions/format.verify.cpp b/libcxx/test/std/utilities/format/format.functions/format.verify.cpp
--- a/libcxx/test/std/utilities/format/format.functions/format.verify.cpp
+++ b/libcxx/test/std/utilities/format/format.functions/format.verify.cpp
@@ -95,10 +95,10 @@
 
 void P2418()
 {
-	auto t = tiny{};
-	std::format("{}", t.bit); // expected-error{{non-const reference cannot bind to bit-field 'bit'}}
+  auto t = tiny{};
+  std::format("{}", t.bit); // expected-error{{non-const reference cannot bind to bit-field 'bit'}}
 
 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
-	std::format(L"{}", t.bit); // expected-error{{non-const reference cannot bind to bit-field 'bit'}}
+  std::format(L"{}", t.bit); // expected-error{{non-const reference cannot bind to bit-field 'bit'}}
 #endif
 }
diff --git a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_move.pass.cpp b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_move.pass.cpp
--- a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_move.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_move.pass.cpp
@@ -116,9 +116,9 @@
         assert(globalMemCounter.checkOutstandingNewEq(1));
         RTTI_ASSERT(f.target<A>());
         RTTI_ASSERT(f.target<int(*)(int)>() == 0);
-		LIBCPP_ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
+        LIBCPP_ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
 #if TEST_STD_VER > 17
-		ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
+        ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
 #endif
         std::function<int(int)> f2 = std::move(f);
         assert(A::count == 1);
@@ -140,9 +140,9 @@
         assert(A::count == 1);
         RTTI_ASSERT(f.target<A>() == nullptr);
         RTTI_ASSERT(f.target<Ref>());
-		LIBCPP_ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
+        LIBCPP_ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
 #if TEST_STD_VER > 17
-		ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
+        ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
 #endif
         std::function<int(int)> f2(std::move(f));
         assert(A::count == 1);
@@ -161,9 +161,9 @@
         std::function<int(int)> f(p);
         RTTI_ASSERT(f.target<A>() == nullptr);
         RTTI_ASSERT(f.target<Ptr>());
-		LIBCPP_ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
+        LIBCPP_ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
 #if TEST_STD_VER > 17
-		ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
+        ASSERT_NOEXCEPT(std::function<int(int)>(std::move(f)));
 #endif
         std::function<int(int)> f2(std::move(f));
         RTTI_ASSERT(f2.target<A>() == nullptr);
diff --git a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_bounded_array.pass.cpp b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_bounded_array.pass.cpp
--- a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_bounded_array.pass.cpp
+++ b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_bounded_array.pass.cpp
@@ -19,8 +19,8 @@
 template <class T, bool B>
 void test_array_imp()
 {
-	static_assert( B == std::is_bounded_array<T>::value, "" );
-	static_assert( B == std::is_bounded_array_v<T>, "" );
+    static_assert( B == std::is_bounded_array<T>::value, "" );
+    static_assert( B == std::is_bounded_array_v<T>, "" );
 }
 
 template <class T, bool B>
@@ -47,21 +47,21 @@
 
 int main(int, char**)
 {
-//	Non-array types
-	test_array<void,           false>();
-	test_array<std::nullptr_t, false>();
-	test_array<int,            false>();
-	test_array<double,         false>();
-	test_array<void *,         false>();
-	test_array<int &,          false>();
-	test_array<int &&,         false>();
+    // Non-array types
+    test_array<void,           false>();
+    test_array<std::nullptr_t, false>();
+    test_array<int,            false>();
+    test_array<double,         false>();
+    test_array<void *,         false>();
+    test_array<int &,          false>();
+    test_array<int &&,         false>();
     test_array<Empty,          false>();
     test_array<Union,          false>();
     test_array<Abstract,       false>();
     test_array<Enum,           false>();
     test_array<FunctionPtr,    false>();
 
-//  Array types
+    // Array types
     test_array<char[3],           true>();
     test_array<int[0],            false>();
     test_array<char[],            false>();
diff --git a/libcxx/test/std/utilities/optional/optional.object/optional.object.ctor/ctor.fail.cpp b/libcxx/test/std/utilities/optional/optional.object/optional.object.ctor/ctor.fail.cpp
--- a/libcxx/test/std/utilities/optional/optional.object/optional.object.ctor/ctor.fail.cpp
+++ b/libcxx/test/std/utilities/optional/optional.object/optional.object.ctor/ctor.fail.cpp
@@ -23,25 +23,25 @@
 
 int main(int, char**)
 {
-	{
-	std::optional<char &> o1;	        // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with a reference type is ill-formed}}
-	std::optional<NonDestructible> o2;  // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with a non-destructible type is ill-formed}}
-	std::optional<char[20]> o3;	        // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with an array type is ill-formed}}
-	}
-
-	{
-	std::optional<               std::in_place_t> o1;  // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
-	std::optional<const          std::in_place_t> o2;  // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
-	std::optional<      volatile std::in_place_t> o3;  // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
-	std::optional<const volatile std::in_place_t> o4;  // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
-	}
-
-	{
-	std::optional<               std::nullopt_t> o1;	// expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
-	std::optional<const          std::nullopt_t> o2;	// expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
-	std::optional<      volatile std::nullopt_t> o3;	// expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
-	std::optional<const volatile std::nullopt_t> o4;	// expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
-	}
-
-	return 0;
+    {
+    std::optional<char &> o1;          // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with a reference type is ill-formed}}
+    std::optional<NonDestructible> o2; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with a non-destructible type is ill-formed}}
+    std::optional<char[20]> o3;        // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with an array type is ill-formed}}
+    }
+
+    {
+    std::optional<               std::in_place_t> o1; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
+    std::optional<const          std::in_place_t> o2; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
+    std::optional<      volatile std::in_place_t> o3; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
+    std::optional<const volatile std::in_place_t> o4; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with in_place_t is ill-formed}}
+    }
+
+    {
+    std::optional<               std::nullopt_t> o1; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
+    std::optional<const          std::nullopt_t> o2; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
+    std::optional<      volatile std::nullopt_t> o3; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
+    std::optional<const volatile std::nullopt_t> o4; // expected-error-re@optional:* {{{{(static_assert|static assertion)}} failed{{.*}}instantiation of optional with nullopt_t is ill-formed}}
+    }
+
+    return 0;
 }
diff --git a/libcxx/test/std/utilities/smartptr/unique.ptr/unique.ptr.special/cmp_nullptr.pass.cpp b/libcxx/test/std/utilities/smartptr/unique.ptr/unique.ptr.special/cmp_nullptr.pass.cpp
--- a/libcxx/test/std/utilities/smartptr/unique.ptr/unique.ptr.special/cmp_nullptr.pass.cpp
+++ b/libcxx/test/std/utilities/smartptr/unique.ptr/unique.ptr.special/cmp_nullptr.pass.cpp
@@ -35,7 +35,7 @@
 // template <class T, class D>
 //     bool operator>=(nullptr_t, const unique_ptr<T, D>& y);
 // template<class T, class D>
-//   requires three_­way_­comparable<typename unique_ptr<T, D>::pointer>
+//   requires three_way_comparable<typename unique_ptr<T, D>::pointer>
 //   constexpr compare_three_way_result_t<typename unique_ptr<T, D>::pointer>
 //     operator<=>(const unique_ptr<T, D>& x, nullptr_t);                            // C++20
 
diff --git a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_convert_const_move.pass.cpp b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_convert_const_move.pass.cpp
--- a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_convert_const_move.pass.cpp
+++ b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_convert_const_move.pass.cpp
@@ -18,12 +18,12 @@
 //  sizeof...(Types) equals sizeof...(UTypes) &&
 //  (is_constructible_v<Types, decltype(get<I>(FWD(u)))> && ...) is true &&
 //  (
-//	sizeof...(Types) is not 1 ||
-//	(
-//		!is_convertible_v<decltype(u), T> &&
-//		!is_constructible_v<T, decltype(u)> &&
-//		!is_same_v<T, U>
-//	)
+//    sizeof...(Types) is not 1 ||
+//    (
+//      !is_convertible_v<decltype(u), T> &&
+//      !is_constructible_v<T, decltype(u)> &&
+//      !is_same_v<T, U>
+//    )
 //  )
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
diff --git a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_convert_non_const_copy.pass.cpp b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_convert_non_const_copy.pass.cpp
--- a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_convert_non_const_copy.pass.cpp
+++ b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_convert_non_const_copy.pass.cpp
@@ -18,12 +18,12 @@
 //  sizeof...(Types) equals sizeof...(UTypes) &&
 //  (is_constructible_v<Types, decltype(get<I>(FWD(u)))> && ...) is true &&
 //  (
-//	sizeof...(Types) is not 1 ||
-//	(
-//		!is_convertible_v<decltype(u), T> &&
-//		!is_constructible_v<T, decltype(u)> &&
-//		!is_same_v<T, U>
-//	)
+//    sizeof...(Types) is not 1 ||
+//    (
+//      !is_convertible_v<decltype(u), T> &&
+//      !is_constructible_v<T, decltype(u)> &&
+//      !is_same_v<T, U>
+//    )
 //  )
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
diff --git a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_non_const_pair.pass.cpp b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_non_const_pair.pass.cpp
--- a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_non_const_pair.pass.cpp
+++ b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_non_const_pair.pass.cpp
@@ -11,8 +11,7 @@
 // template <class... Types>
 // template <class Alloc, class U1, class U2>
 // constexpr explicit(see below)
-//	 tuple<Types...>::tuple(allocator_arg_t, const Alloc& a, pair<U1, U2>&
-// u);
+//  tuple<Types...>::tuple(allocator_arg_t, const Alloc& a, pair<U1, U2>& u);
 
 // Constraints:
 // - sizeof...(Types) is 2 and
diff --git a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/convert_const_move.pass.cpp b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/convert_const_move.pass.cpp
--- a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/convert_const_move.pass.cpp
+++ b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/convert_const_move.pass.cpp
@@ -17,12 +17,12 @@
 //  sizeof...(Types) equals sizeof...(UTypes) &&
 //  (is_constructible_v<Types, decltype(get<I>(FWD(u)))> && ...) is true &&
 //  (
-//	sizeof...(Types) is not 1 ||
-//	(
-//		!is_convertible_v<decltype(u), T> &&
-//		!is_constructible_v<T, decltype(u)> &&
-//		!is_same_v<T, U>
-//	)
+//    sizeof...(Types) is not 1 ||
+//    (
+//      !is_convertible_v<decltype(u), T> &&
+//      !is_constructible_v<T, decltype(u)> &&
+//      !is_same_v<T, U>
+//    )
 //  )
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
diff --git a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/convert_non_const_copy.pass.cpp b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/convert_non_const_copy.pass.cpp
--- a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/convert_non_const_copy.pass.cpp
+++ b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/convert_non_const_copy.pass.cpp
@@ -16,12 +16,12 @@
 //  sizeof...(Types) equals sizeof...(UTypes) &&
 //  (is_constructible_v<Types, decltype(get<I>(FWD(u)))> && ...) is true &&
 //  (
-//	sizeof...(Types) is not 1 ||
-//	(
-//		!is_convertible_v<decltype(u), T> &&
-//		!is_constructible_v<T, decltype(u)> &&
-//		!is_same_v<T, U>
-//	)
+//    sizeof...(Types) is not 1 ||
+//    (
+//      !is_convertible_v<decltype(u), T> &&
+//      !is_constructible_v<T, decltype(u)> &&
+//      !is_same_v<T, U>
+//    )
 //  )
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
diff --git a/libcxx/test/support/filesystem_test_helper.h b/libcxx/test/support/filesystem_test_helper.h
--- a/libcxx/test/support/filesystem_test_helper.h
+++ b/libcxx/test/support/filesystem_test_helper.h
@@ -328,20 +328,20 @@
 /// This class generates the following tree:
 ///
 ///     static_test_env
-///     ├── bad_symlink -> dne
-///     ├── dir1
-///     │   ├── dir2
-///     │   │   ├── afile3
-///     │   │   ├── dir3
-///     │   │   │   └── file5
-///     │   │   ├── file4
-///     │   │   └── symlink_to_dir3 -> dir3
-///     │   ├── file1
-///     │   └── file2
-///     ├── empty_file
-///     ├── non_empty_file
-///     ├── symlink_to_dir -> dir1
-///     └── symlink_to_empty_file -> empty_file
+///     |-- bad_symlink -> dne
+///     |-- dir1
+///     |   |-- dir2
+///     |   |   |-- afile3
+///     |   |   |-- dir3
+///     |   |   |   `-- file5
+///     |   |   |-- file4
+///     |   |   `-- symlink_to_dir3 -> dir3
+///     |   `-- file1
+///     |   `-- file2
+///     |-- empty_file
+///     |-- non_empty_file
+///     |-- symlink_to_dir -> dir1
+///     `-- symlink_to_empty_file -> empty_file
 ///
 class static_test_env {
     scoped_test_env env_;
diff --git a/libcxx/test/support/fp_compare.h b/libcxx/test/support/fp_compare.h
--- a/libcxx/test/support/fp_compare.h
+++ b/libcxx/test/support/fp_compare.h
@@ -17,29 +17,29 @@
 template<typename T>
 bool fptest_close(T val, T expected, T eps)
 {
-	constexpr T zero = T(0);
-	assert(eps >= zero);
+    constexpr T zero = T(0);
+    assert(eps >= zero);
 
-//	Handle the zero cases
-	if (eps      == zero) return val == expected;
-	if (val      == zero) return std::abs(expected) <= eps;
-	if (expected == zero) return std::abs(val)      <= eps;
+    // Handle the zero cases
+    if (eps      == zero) return val == expected;
+    if (val      == zero) return std::abs(expected) <= eps;
+    if (expected == zero) return std::abs(val)      <= eps;
 
-	return std::abs(val - expected) < eps
-	    && std::abs(val - expected)/std::abs(val) < eps;
+    return std::abs(val - expected) < eps
+        && std::abs(val - expected)/std::abs(val) < eps;
 }
 
 template<typename T>
 bool fptest_close_pct(T val, T expected, T percent)
 {
-	constexpr T zero = T(0);
-	assert(percent >= zero);
+    constexpr T zero = T(0);
+    assert(percent >= zero);
 
-//	Handle the zero cases
-	if (percent == zero) return val == expected;
-	T eps = (percent / T(100)) * std::max(std::abs(val), std::abs(expected));
+    // Handle the zero cases
+    if (percent == zero) return val == expected;
+    T eps = (percent / T(100)) * std::max(std::abs(val), std::abs(expected));
 
-	return fptest_close(val, expected, eps);
+    return fptest_close(val, expected, eps);
 }
 
 
diff --git a/libcxx/utils/ci/run-buildbot b/libcxx/utils/ci/run-buildbot
--- a/libcxx/utils/ci/run-buildbot
+++ b/libcxx/utils/ci/run-buildbot
@@ -185,7 +185,12 @@
 
     # Reject patches that introduce non-ASCII characters or hard tabs.
     # Depends on LC_COLLATE set at the top of this script.
-    ! grep -rn '[^ -~]' libcxx/include/ || false
+    ! grep -rn '[^ -~]' libcxx/include libcxx/src libcxx/test libcxx/benchmarks \
+           --exclude '*.dat' \
+           --exclude 'std_format_spec_string_unicode.bench.cpp' \
+           --exclude 'grep.pass.cpp' \
+           --exclude 'locale-specific_form.pass.cpp' \
+           --exclude 'format_tests.h' || false
 
     # Reject patches that introduce dependency cycles in the headers.
     python3 libcxx/utils/graph_header_deps.py >/dev/null