diff --git a/libcxx/test/std/strings/string.view/char.bad.fail.cpp b/libcxx/test/std/strings/string.view/char.bad.fail.cpp
--- a/libcxx/test/std/strings/string.view/char.bad.fail.cpp
+++ b/libcxx/test/std/strings/string.view/char.bad.fail.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 //   ... manipulating sequences of any non-array trivial standard-layout types.
 
diff --git a/libcxx/test/std/strings/string.view/string.view.hash/char_type.hash.fail.cpp b/libcxx/test/std/strings/string.view/string.view.hash/char_type.hash.fail.cpp
--- a/libcxx/test/std/strings/string.view/string.view.hash/char_type.hash.fail.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.hash/char_type.hash.fail.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03
+// UNSUPPORTED: !stdlib=libc++ && (c++11 || c++14)
 
 // <string_view>
 
diff --git a/libcxx/test/std/strings/string.view/string.view.hash/enabled_hashes.pass.cpp b/libcxx/test/std/strings/string.view/string.view.hash/enabled_hashes.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.hash/enabled_hashes.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.hash/enabled_hashes.pass.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++03
+// UNSUPPORTED: !stdlib=libc++ && (c++11 || c++14)
 
 // <string_view>
 
diff --git a/libcxx/test/std/strings/string.view/string.view.hash/string_view.pass.cpp b/libcxx/test/std/strings/string.view/string.view.hash/string_view.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.hash/string_view.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.hash/string_view.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <functional>
 
 // template <class T>
diff --git a/libcxx/test/std/strings/string.view/string.view.access/back.pass.cpp b/libcxx/test/std/strings/string.view/string.view.access/back.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.access/back.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.access/back.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr const _CharT& front();
diff --git a/libcxx/test/std/strings/string.view/string.view.access/data.pass.cpp b/libcxx/test/std/strings/string.view/string.view.access/data.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.access/data.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.access/data.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr const _CharT* data() const noexcept;
diff --git a/libcxx/test/std/strings/string.view/string.view.access/front.pass.cpp b/libcxx/test/std/strings/string.view/string.view.access/front.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.access/front.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.access/front.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr const _CharT& back();
diff --git a/libcxx/test/std/strings/string.view/string.view.access/index.pass.cpp b/libcxx/test/std/strings/string.view/string.view.access/index.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.access/index.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.access/index.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr const _CharT& operator[](size_type _pos) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.capacity/capacity.pass.cpp b/libcxx/test/std/strings/string.view/string.view.capacity/capacity.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.capacity/capacity.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.capacity/capacity.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // [string.view.capacity], capacity
diff --git a/libcxx/test/std/strings/string.view/string.view.comparison/equal.pass.cpp b/libcxx/test/std/strings/string.view/string.view.comparison/equal.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.comparison/equal.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.comparison/equal.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // template<class charT, class traits>
diff --git a/libcxx/test/std/strings/string.view/string.view.comparison/greater.pass.cpp b/libcxx/test/std/strings/string.view/string.view.comparison/greater.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.comparison/greater.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.comparison/greater.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // template<class charT, class traits>
diff --git a/libcxx/test/std/strings/string.view/string.view.comparison/greater_equal.pass.cpp b/libcxx/test/std/strings/string.view/string.view.comparison/greater_equal.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.comparison/greater_equal.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.comparison/greater_equal.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // template<class charT, class traits>
diff --git a/libcxx/test/std/strings/string.view/string.view.comparison/less.pass.cpp b/libcxx/test/std/strings/string.view/string.view.comparison/less.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.comparison/less.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.comparison/less.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // template<class charT, class traits>
diff --git a/libcxx/test/std/strings/string.view/string.view.comparison/less_equal.pass.cpp b/libcxx/test/std/strings/string.view/string.view.comparison/less_equal.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.comparison/less_equal.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.comparison/less_equal.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // template<class charT, class traits>
diff --git a/libcxx/test/std/strings/string.view/string.view.comparison/not_equal.pass.cpp b/libcxx/test/std/strings/string.view/string.view.comparison/not_equal.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.comparison/not_equal.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.comparison/not_equal.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // template<class charT, class traits>
diff --git a/libcxx/test/std/strings/string.view/string.view.cons/assign.pass.cpp b/libcxx/test/std/strings/string.view/string.view.cons/assign.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.cons/assign.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.cons/assign.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr basic_string_view& operator=(const basic_string_view &) noexcept = default;
diff --git a/libcxx/test/std/strings/string.view/string.view.cons/default.pass.cpp b/libcxx/test/std/strings/string.view/string.view.cons/default.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.cons/default.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.cons/default.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr basic_string_view () noexcept;
diff --git a/libcxx/test/std/strings/string.view/string.view.cons/from_literal.pass.cpp b/libcxx/test/std/strings/string.view/string.view.cons/from_literal.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.cons/from_literal.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.cons/from_literal.pass.cpp
@@ -6,12 +6,13 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr basic_string_view(const _CharT* _s)
 //    : __data (_s), __size(_Traits::length(_s)) {}
 
-
 #include <string_view>
 #include <string>
 #include <cassert>
diff --git a/libcxx/test/std/strings/string.view/string.view.cons/from_ptr_len.pass.cpp b/libcxx/test/std/strings/string.view/string.view.cons/from_ptr_len.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.cons/from_ptr_len.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.cons/from_ptr_len.pass.cpp
@@ -6,12 +6,13 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 //  constexpr basic_string_view(const _CharT* _s, size_type _len)
 //      : __data (_s), __size(_len) {}
 
-
 #include <string_view>
 #include <string>
 #include <cassert>
diff --git a/libcxx/test/std/strings/string.view/string.view.cons/from_string.pass.cpp b/libcxx/test/std/strings/string.view/string.view.cons/from_string.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.cons/from_string.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.cons/from_string.pass.cpp
@@ -6,12 +6,13 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // template<class Allocator>
 // basic_string_view(const basic_string<_CharT, _Traits, Allocator>& _str) noexcept
 
-
 #include <string_view>
 #include <string>
 #include <cassert>
diff --git a/libcxx/test/std/strings/string.view/string.view.cons/from_string1.compile.fail.cpp b/libcxx/test/std/strings/string.view/string.view.cons/from_string1.compile.fail.cpp
--- a/libcxx/test/std/strings/string.view/string.view.cons/from_string1.compile.fail.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.cons/from_string1.compile.fail.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // template<class Allocator>
diff --git a/libcxx/test/std/strings/string.view/string.view.cons/from_string2.compile.fail.cpp b/libcxx/test/std/strings/string.view/string.view.cons/from_string2.compile.fail.cpp
--- a/libcxx/test/std/strings/string.view/string.view.cons/from_string2.compile.fail.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.cons/from_string2.compile.fail.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // template<class Allocator>
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_char_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_char_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_char_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_char_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find(charT c, size_type pos = 0) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_char_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_char_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_char_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_char_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_first_not_of(charT c, size_type pos = 0) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_pointer_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_pointer_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_pointer_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_pointer_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_first_not_of(const charT* s, size_type pos = 0) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_pointer_size_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_pointer_size_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_pointer_size_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_pointer_size_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_first_not_of(const charT* s, size_type pos, size_type n) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_string_view_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_string_view_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_string_view_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_first_not_of_string_view_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // size_type find_first_not_of(const basic_string& str, size_type pos = 0) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_first_of_char_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_first_of_char_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_first_of_char_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_first_of_char_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_first_of(charT c, size_type pos = 0) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_first_of_pointer_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_first_of_pointer_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_first_of_pointer_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_first_of_pointer_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_first_of(const charT* s, size_type pos = 0) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_first_of_pointer_size_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_first_of_pointer_size_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_first_of_pointer_size_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_first_of_pointer_size_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_first_of(const charT* s, size_type pos, size_type n) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_first_of_string_view_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_first_of_string_view_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_first_of_string_view_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_first_of_string_view_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // size_type find_first_of(const basic_string_view& str, size_type pos = 0) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_char_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_char_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_char_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_char_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // size_type find_last_not_of(charT c, size_type pos = npos) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_pointer_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_pointer_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_pointer_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_pointer_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_last_not_of(const charT* s, size_type pos = npos) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_pointer_size_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_pointer_size_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_pointer_size_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_pointer_size_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_last_not_of(const charT* s, size_type pos, size_type n) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_string_view_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_string_view_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_string_view_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_last_not_of_string_view_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // size_type find_last_not_of(const basic_string& str, size_type pos = npos) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_last_of_char_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_last_of_char_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_last_of_char_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_last_of_char_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_last_of(charT c, size_type pos = npos) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_last_of_pointer_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_last_of_pointer_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_last_of_pointer_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_last_of_pointer_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_last_of(const charT* s, size_type pos = npos) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_last_of_pointer_size_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_last_of_pointer_size_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_last_of_pointer_size_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_last_of_pointer_size_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find_last_of(const charT* s, size_type pos, size_type n) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_last_of_string_view_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_last_of_string_view_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_last_of_string_view_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_last_of_string_view_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // size_type find_last_of(const basic_string& str, size_type pos = npos) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_pointer_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_pointer_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_pointer_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_pointer_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find(const charT* s, size_type pos = 0) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_pointer_size_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_pointer_size_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_pointer_size_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_pointer_size_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find(const charT* s, size_type pos, size_type n) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/find_string_view_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/find_string_view_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/find_string_view_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/find_string_view_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type find(const basic_string_view& str, size_type pos = 0) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.find/rfind_char_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/rfind_char_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/rfind_char_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/rfind_char_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 // constexpr size_type rfind(charT c, size_type pos = npos) const;
 
diff --git a/libcxx/test/std/strings/string.view/string.view.find/rfind_pointer_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/rfind_pointer_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/rfind_pointer_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/rfind_pointer_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 // constexpr size_type rfind(const charT* s, size_type pos = npos) const;
 
diff --git a/libcxx/test/std/strings/string.view/string.view.find/rfind_pointer_size_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/rfind_pointer_size_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/rfind_pointer_size_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/rfind_pointer_size_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 // constexpr size_type rfind(const charT* s, size_type pos, size_type n) const;
 
diff --git a/libcxx/test/std/strings/string.view/string.view.find/rfind_string_view_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.find/rfind_string_view_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.find/rfind_string_view_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.find/rfind_string_view_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr size_type rfind(const basic_string& str, size_type pos = npos) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.io/stream_insert.pass.cpp b/libcxx/test/std/strings/string.view/string.view.io/stream_insert.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.io/stream_insert.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.io/stream_insert.pass.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: no-localization
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
 
 // <string_view>
 
diff --git a/libcxx/test/std/strings/string.view/string.view.io/stream_insert_decl_present.compile.pass.cpp b/libcxx/test/std/strings/string.view/string.view.io/stream_insert_decl_present.compile.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.io/stream_insert_decl_present.compile.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.io/stream_insert_decl_present.compile.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // template<class charT, class traits, class Allocator>
diff --git a/libcxx/test/std/strings/string.view/string.view.iterators/begin.pass.cpp b/libcxx/test/std/strings/string.view/string.view.iterators/begin.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.iterators/begin.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.iterators/begin.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr const_iterator begin() const;
diff --git a/libcxx/test/std/strings/string.view/string.view.iterators/end.pass.cpp b/libcxx/test/std/strings/string.view/string.view.iterators/end.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.iterators/end.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.iterators/end.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr const_iterator end() const;
diff --git a/libcxx/test/std/strings/string.view/string.view.iterators/rbegin.pass.cpp b/libcxx/test/std/strings/string.view/string.view.iterators/rbegin.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.iterators/rbegin.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.iterators/rbegin.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // const_iterator rbegin() const;
diff --git a/libcxx/test/std/strings/string.view/string.view.iterators/rend.pass.cpp b/libcxx/test/std/strings/string.view/string.view.iterators/rend.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.iterators/rend.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.iterators/rend.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr const_iterator rend() const;
diff --git a/libcxx/test/std/strings/string.view/string.view.modifiers/remove_prefix.pass.cpp b/libcxx/test/std/strings/string.view/string.view.modifiers/remove_prefix.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.modifiers/remove_prefix.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.modifiers/remove_prefix.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // void remove_prefix(size_type _n)
diff --git a/libcxx/test/std/strings/string.view/string.view.modifiers/remove_suffix.pass.cpp b/libcxx/test/std/strings/string.view/string.view.modifiers/remove_suffix.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.modifiers/remove_suffix.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.modifiers/remove_suffix.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // void remove_suffix(size_type _n)
diff --git a/libcxx/test/std/strings/string.view/string.view.modifiers/swap.pass.cpp b/libcxx/test/std/strings/string.view/string.view.modifiers/swap.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.modifiers/swap.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.modifiers/swap.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // void swap(basic_string_view& _other) noexcept
diff --git a/libcxx/test/std/strings/string.view/string.view.nonmem/quoted.pass.cpp b/libcxx/test/std/strings/string.view/string.view.nonmem/quoted.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.nonmem/quoted.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.nonmem/quoted.pass.cpp
@@ -8,6 +8,7 @@
 
 // UNSUPPORTED: c++03, c++11
 // UNSUPPORTED: no-localization
+// UNSUPPORTED: !stdlib=libc++ && c++14
 
 // <iomanip>
 
diff --git a/libcxx/test/std/strings/string.view/string.view.ops/compare.pointer.pass.cpp b/libcxx/test/std/strings/string.view/string.view.ops/compare.pointer.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.ops/compare.pointer.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.ops/compare.pointer.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr int compare(const charT* s) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr int compare(size_type pos1, size_type n1, const charT* s) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv.pass.cpp b/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr int compare(size_type pos1, size_type n1, basic_string_view str) const;
diff --git a/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv_pointer_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv_pointer_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv_pointer_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv_pointer_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr int compare(size_type pos1, size_type n1,
diff --git a/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv_size_size.pass.cpp b/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv_size_size.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv_size_size.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.ops/compare.size_size_sv_size_size.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr int compare(size_type pos1, size_type n1, basic_string_view str,
diff --git a/libcxx/test/std/strings/string.view/string.view.ops/compare.sv.pass.cpp b/libcxx/test/std/strings/string.view/string.view.ops/compare.sv.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.ops/compare.sv.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.ops/compare.sv.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr int compare(basic_string_view str) const noexcept;
diff --git a/libcxx/test/std/strings/string.view/string.view.ops/copy.pass.cpp b/libcxx/test/std/strings/string.view/string.view.ops/copy.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.ops/copy.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.ops/copy.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // size_type copy(charT* s, size_type n, size_type pos = 0) const;
@@ -16,7 +18,6 @@
 // Effects: Equivalent to std::copy_n(begin() + pos, rlen, s).
 // Returns: rlen.
 
-
 #include <string_view>
 #include <algorithm>
 #include <cassert>
diff --git a/libcxx/test/std/strings/string.view/string.view.ops/substr.pass.cpp b/libcxx/test/std/strings/string.view/string.view.ops/substr.pass.cpp
--- a/libcxx/test/std/strings/string.view/string.view.ops/substr.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string.view.ops/substr.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // constexpr basic_string_view substr(size_type pos = 0, size_type n = npos) const;
diff --git a/libcxx/test/std/strings/string.view/string_view.literals/literal.pass.cpp b/libcxx/test/std/strings/string.view/string_view.literals/literal.pass.cpp
--- a/libcxx/test/std/strings/string.view/string_view.literals/literal.pass.cpp
+++ b/libcxx/test/std/strings/string.view/string_view.literals/literal.pass.cpp
@@ -6,9 +6,9 @@
 //
 //===----------------------------------------------------------------------===//
 
-// UNSUPPORTED: c++03, c++11
-
 // Note: libc++ supports string_view before C++17, but literals were introduced in C++14
+// UNSUPPORTED: c++03, c++11
+// UNSUPPORTED: !stdlib=libc++ && c++14
 
 #include <string_view>
 #include <cassert>
diff --git a/libcxx/test/std/strings/string.view/string_view.literals/literal.verify.cpp b/libcxx/test/std/strings/string.view/string_view.literals/literal.verify.cpp
--- a/libcxx/test/std/strings/string.view/string_view.literals/literal.verify.cpp
+++ b/libcxx/test/std/strings/string.view/string_view.literals/literal.verify.cpp
@@ -6,7 +6,9 @@
 //
 //===----------------------------------------------------------------------===//
 
+// Note: libc++ supports string_view before C++17, but literals were introduced in C++14
 // UNSUPPORTED: c++03, c++11
+// UNSUPPORTED: !stdlib=libc++ && c++14
 
 #include <string_view>
 
diff --git a/libcxx/test/std/strings/string.view/traits_mismatch.compile.fail.cpp b/libcxx/test/std/strings/string.view/traits_mismatch.compile.fail.cpp
--- a/libcxx/test/std/strings/string.view/traits_mismatch.compile.fail.cpp
+++ b/libcxx/test/std/strings/string.view/traits_mismatch.compile.fail.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 //   The string_views's value type must be the same as the traits's char_type
 
diff --git a/libcxx/test/std/strings/string.view/trivially_copyable.compile.pass.cpp b/libcxx/test/std/strings/string.view/trivially_copyable.compile.pass.cpp
--- a/libcxx/test/std/strings/string.view/trivially_copyable.compile.pass.cpp
+++ b/libcxx/test/std/strings/string.view/trivially_copyable.compile.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // P2251 was voted into C++23, but is supported even in C++17 mode by all vendors.
 
 // <string_view>
diff --git a/libcxx/test/std/strings/string.view/types.pass.cpp b/libcxx/test/std/strings/string.view/types.pass.cpp
--- a/libcxx/test/std/strings/string.view/types.pass.cpp
+++ b/libcxx/test/std/strings/string.view/types.pass.cpp
@@ -6,6 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
+
 // <string_view>
 
 // Test nested types and default template args: