Define aliases for containers using polymorphic_allocator

diff --git a/libstdc++-v3/include/std/deque b/libstdc++-v3/include/std/deque
index 896ec8aade0..d2c75f1f078 100644
--- a/libstdc++-v3/include/std/deque
+++ b/libstdc++-v3/include/std/deque
@@ -73,4 +73,18 @@ 
 # include <profile/deque>
 #endif
 
+#if __cplusplus >= 201703L
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+  namespace pmr
+  {
+    template<typename _Tp> class polymorphic_allocator;
+    template<typename _Tp>
+      using deque = std::deque<_Tp, polymorphic_allocator<_Tp>>;
+  } // namespace pmr
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++17
+
 #endif /* _GLIBCXX_DEQUE */
diff --git a/libstdc++-v3/include/std/forward_list b/libstdc++-v3/include/std/forward_list
index fd4cfe53179..00b41354c7d 100644
--- a/libstdc++-v3/include/std/forward_list
+++ b/libstdc++-v3/include/std/forward_list
@@ -47,6 +47,19 @@ 
 # include <profile/forward_list>
 #endif
 
+#if __cplusplus >= 201703L
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+  namespace pmr
+  {
+    template<typename _Tp> class polymorphic_allocator;
+    template<typename _Tp>
+      using forward_list = std::forward_list<_Tp, polymorphic_allocator<_Tp>>;
+  } // namespace pmr
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++17
 #endif // C++11
 
 #endif // _GLIBCXX_FORWARD_LIST
diff --git a/libstdc++-v3/include/std/list b/libstdc++-v3/include/std/list
index 6ba1363b84d..555371ffb76 100644
--- a/libstdc++-v3/include/std/list
+++ b/libstdc++-v3/include/std/list
@@ -71,5 +71,17 @@ 
 # include <profile/list>
 #endif
 
+#if __cplusplus >= 201703L
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+  namespace pmr
+  {
+    template<typename _Tp> class polymorphic_allocator;
+    template<typename _Tp>
+      using list = std::list<_Tp, polymorphic_allocator<_Tp>>;
+  } // namespace pmr
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++17
 #endif /* _GLIBCXX_LIST */
-
diff --git a/libstdc++-v3/include/std/map b/libstdc++-v3/include/std/map
index 5c429f00c0b..84f8cdb701d 100644
--- a/libstdc++-v3/include/std/map
+++ b/libstdc++-v3/include/std/map
@@ -70,4 +70,24 @@ 
 # include <profile/map>
 #endif
 
+#if __cplusplus >= 201703L
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+  namespace pmr
+  {
+    template<typename _Tp> class polymorphic_allocator;
+    template<typename _Key, typename _Tp, typename _Cmp = std::less<_Key>>
+      using map
+	= std::map<_Key, _Tp, _Cmp,
+		   polymorphic_allocator<pair<const _Key, _Tp>>>;
+    template<typename _Key, typename _Tp, typename _Cmp = std::less<_Key>>
+      using multimap
+	= std::multimap<_Key, _Tp, _Cmp,
+			polymorphic_allocator<pair<const _Key, _Tp>>>;
+  } // namespace pmr
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++17
+
 #endif /* _GLIBCXX_MAP */
diff --git a/libstdc++-v3/include/std/regex b/libstdc++-v3/include/std/regex
index 7e4564a3783..f0dfa3f68ab 100644
--- a/libstdc++-v3/include/std/regex
+++ b/libstdc++-v3/include/std/regex
@@ -62,6 +62,27 @@ 
 #include <bits/regex.h>
 #include <bits/regex_executor.h>
 
+#if __cplusplus >= 201703L
+#include <memory_resource>
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+  namespace pmr {
+    template<typename _Tp> class polymorphic_allocator;
+    template<typename _BidirectionalIterator>
+      using match_results
+	= std::match_results<_BidirectionalIterator, polymorphic_allocator<
+				sub_match<_BidirectionalIterator>>>;
+    using cmatch  = match_results<const char*>;
+    using smatch  = match_results<string::const_iterator>;
+#ifdef _GLIBCXX_USE_WCHAR_T
+    using wcmatch = match_results<const wchar_t*>;
+    using wsmatch = match_results<wstring::const_iterator>;
+#endif
+  } // namespace pmr
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++17
 #endif // C++11
 
 #endif // _GLIBCXX_REGEX
diff --git a/libstdc++-v3/include/std/set b/libstdc++-v3/include/std/set
index 732c6d33f08..dd41b2f1911 100644
--- a/libstdc++-v3/include/std/set
+++ b/libstdc++-v3/include/std/set
@@ -70,4 +70,20 @@ 
 # include <profile/set>
 #endif
 
+#if __cplusplus >= 201703L
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+  namespace pmr
+  {
+    template<typename _Tp> class polymorphic_allocator;
+    template<typename _Key, typename _Cmp = std::less<_Key>>
+      using set = std::set<_Key, _Cmp, polymorphic_allocator<_Key>>;
+    template<typename _Key, typename _Cmp = std::less<_Key>>
+      using multiset = std::multiset<_Key, _Cmp, polymorphic_allocator<_Key>>;
+  } // namespace pmr
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++17
+
 #endif /* _GLIBCXX_SET */
diff --git a/libstdc++-v3/include/std/string b/libstdc++-v3/include/std/string
index 2fceead30a8..d3cc03aa179 100644
--- a/libstdc++-v3/include/std/string
+++ b/libstdc++-v3/include/std/string
@@ -52,4 +52,24 @@ 
 #include <bits/basic_string.h>
 #include <bits/basic_string.tcc>
 
+#if __cplusplus >= 201703L
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+  namespace pmr {
+    template<typename _Tp> class polymorphic_allocator;
+    template<typename _CharT, typename _Traits = char_traits<_CharT>>
+      using basic_string = std::basic_string<_CharT, _Traits,
+					     polymorphic_allocator<_CharT>>;
+    using string    = basic_string<char>;
+    using u16string = basic_string<char16_t>;
+    using u32string = basic_string<char32_t>;
+#ifdef _GLIBCXX_USE_WCHAR_T
+    using wstring   = basic_string<wchar_t>;
+#endif
+  } // namespace pmr
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++17
+
 #endif /* _GLIBCXX_STRING */
diff --git a/libstdc++-v3/include/std/unordered_map b/libstdc++-v3/include/std/unordered_map
index 85840fc49cd..fc1b1e3c71c 100644
--- a/libstdc++-v3/include/std/unordered_map
+++ b/libstdc++-v3/include/std/unordered_map
@@ -55,6 +55,27 @@ 
 # include <profile/unordered_map>
 #endif
 
+#if __cplusplus >= 201703L
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+  namespace pmr
+  {
+    template<typename _Tp> class polymorphic_allocator;
+    template<typename _Key, typename _Tp, typename _Hash = std::hash<_Key>,
+	     typename _Pred = std::equal_to<_Key>>
+      using unordered_map
+	= std::unordered_map<_Key, _Tp, _Hash, _Pred,
+			     polymorphic_allocator<pair<const _Key, _Tp>>>;
+    template<typename _Key, typename _Tp, typename _Hash = std::hash<_Key>,
+	     typename _Pred = std::equal_to<_Key>>
+      using unordered_multimap
+	= std::unordered_multimap<_Key, _Tp, _Hash, _Pred,
+				  polymorphic_allocator<pair<const _Key, _Tp>>>;
+  } // namespace pmr
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++17
 #endif // C++11
 
 #endif // _GLIBCXX_UNORDERED_MAP
diff --git a/libstdc++-v3/include/std/unordered_set b/libstdc++-v3/include/std/unordered_set
index 0593fbd1b61..8c04669a46e 100644
--- a/libstdc++-v3/include/std/unordered_set
+++ b/libstdc++-v3/include/std/unordered_set
@@ -54,6 +54,28 @@ 
 #ifdef _GLIBCXX_PROFILE
 # include <profile/unordered_set>
 #endif
+
+#if __cplusplus >= 201703L
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+  namespace pmr
+  {
+    template<typename _Tp> class polymorphic_allocator;
+    template<typename _Key, typename _Hash = std::hash<_Key>,
+	     typename _Pred = std::equal_to<_Key>>
+      using unordered_set
+	= std::unordered_set<_Key, _Hash, _Pred,
+			     polymorphic_allocator<_Key>>;
+    template<typename _Key, typename _Hash = std::hash<_Key>,
+	     typename _Pred = std::equal_to<_Key>>
+      using unordered_multiset
+	= std::unordered_multiset<_Key, _Hash, _Pred,
+				  polymorphic_allocator<_Key>>;
+  } // namespace pmr
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++17
 #endif // C++11
 
 #endif // _GLIBCXX_UNORDERED_SET
diff --git a/libstdc++-v3/include/std/vector b/libstdc++-v3/include/std/vector
index e03e50f9c9a..2a421c631f1 100644
--- a/libstdc++-v3/include/std/vector
+++ b/libstdc++-v3/include/std/vector
@@ -77,5 +77,17 @@ 
 # include <profile/vector>
 #endif
 
-#endif /* _GLIBCXX_VECTOR */
+#if __cplusplus >= 201703L
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+  namespace pmr {
+    template<typename _Tp> class polymorphic_allocator;
+    template<typename _Tp>
+      using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
+  } // namespace pmr
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+#endif // C++17
 
+#endif /* _GLIBCXX_VECTOR */
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/types/pmr_typedefs.cc b/libstdc++-v3/testsuite/21_strings/basic_string/types/pmr_typedefs.cc
new file mode 100644
index 00000000000..d20fc42901e
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/types/pmr_typedefs.cc
@@ -0,0 +1,52 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <string>
+#include <memory_resource>
+
+struct T : std::char_traits<char> { };
+
+static_assert(std::is_same_v<std::pmr::basic_string<char>,
+    std::basic_string<char, std::char_traits<char>,
+		      std::pmr::polymorphic_allocator<char>>>);
+static_assert(std::is_same_v<std::pmr::basic_string<char, T>,
+    std::basic_string<char, T, std::pmr::polymorphic_allocator<char>>>);
+
+static_assert(std::is_same_v<std::pmr::string,
+    std::basic_string<char, std::char_traits<char>,
+		      std::pmr::polymorphic_allocator<char>>>);
+static_assert(std::is_same_v<std::pmr::u16string,
+    std::basic_string<char16_t, std::char_traits<char16_t>,
+		      std::pmr::polymorphic_allocator<char16_t>>>);
+static_assert(std::is_same_v<std::pmr::u32string,
+    std::basic_string<char32_t, std::char_traits<char32_t>,
+		      std::pmr::polymorphic_allocator<char32_t>>>);
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+static_assert(std::is_same_v<std::pmr::basic_string<wchar_t>,
+    std::basic_string<wchar_t, std::char_traits<wchar_t>,
+		      std::pmr::polymorphic_allocator<wchar_t>>>);
+static_assert(std::is_same_v<std::pmr::basic_string<wchar_t, T>,
+    std::basic_string<wchar_t, T, std::pmr::polymorphic_allocator<wchar_t>>>);
+
+static_assert(std::is_same_v<std::pmr::wstring,
+    std::basic_string<wchar_t, std::char_traits<wchar_t>,
+		      std::pmr::polymorphic_allocator<wchar_t>>>);
+#endif
diff --git a/libstdc++-v3/testsuite/23_containers/deque/types/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/deque/types/pmr_typedefs.cc
new file mode 100644
index 00000000000..cd51626d35b
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/deque/types/pmr_typedefs.cc
@@ -0,0 +1,27 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <deque>
+#include <memory_resource>
+
+struct X { };
+
+static_assert(std::is_same_v<std::pmr::deque<X>,
+    std::deque<X, std::pmr::polymorphic_allocator<X>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/forward_list/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/forward_list/pmr_typedefs.cc
new file mode 100644
index 00000000000..7bf61fac5f1
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/forward_list/pmr_typedefs.cc
@@ -0,0 +1,27 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <forward_list>
+#include <memory_resource>
+
+struct X { };
+
+static_assert(std::is_same_v<std::pmr::forward_list<X>,
+    std::forward_list<X, std::pmr::polymorphic_allocator<X>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/list/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/list/pmr_typedefs.cc
new file mode 100644
index 00000000000..3359295ea33
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/list/pmr_typedefs.cc
@@ -0,0 +1,27 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <list>
+#include <memory_resource>
+
+struct X { };
+
+static_assert(std::is_same_v<std::pmr::list<X>,
+    std::list<X, std::pmr::polymorphic_allocator<X>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/map/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/map/pmr_typedefs.cc
new file mode 100644
index 00000000000..1a49272b30c
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/map/pmr_typedefs.cc
@@ -0,0 +1,33 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <map>
+#include <memory_resource>
+
+struct X { };
+struct Y { };
+struct Cmp { bool operator()(X, X) const { return false; } };
+
+static_assert(std::is_same_v<std::pmr::map<X, Y>,
+    std::map<X, Y, std::less<X>,
+	     std::pmr::polymorphic_allocator<std::pair<const X, Y>>>>);
+static_assert(std::is_same_v<std::pmr::map<X, Y, Cmp>,
+    std::map<X, Y, Cmp,
+	     std::pmr::polymorphic_allocator<std::pair<const X, Y>>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/multimap/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/multimap/pmr_typedefs.cc
new file mode 100644
index 00000000000..f1dc01e3393
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/multimap/pmr_typedefs.cc
@@ -0,0 +1,33 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <map>
+#include <memory_resource>
+
+struct X { };
+struct Y { };
+struct Cmp { bool operator()(X, X) const { return false; } };
+
+static_assert(std::is_same_v<std::pmr::multimap<X, Y>,
+    std::multimap<X, Y, std::less<X>,
+		  std::pmr::polymorphic_allocator<std::pair<const X, Y>>>>);
+static_assert(std::is_same_v<std::pmr::multimap<X, Y, Cmp>,
+    std::multimap<X, Y, Cmp,
+		  std::pmr::polymorphic_allocator<std::pair<const X, Y>>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/multiset/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/multiset/pmr_typedefs.cc
new file mode 100644
index 00000000000..224d8821a27
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/multiset/pmr_typedefs.cc
@@ -0,0 +1,30 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <set>
+#include <memory_resource>
+
+struct X { };
+struct Cmp { bool operator()(X, X) const { return false; } };
+
+static_assert(std::is_same_v<std::pmr::multiset<X>,
+    std::multiset<X, std::less<X>, std::pmr::polymorphic_allocator<X>>>);
+static_assert(std::is_same_v<std::pmr::multiset<X, Cmp>,
+    std::multiset<X, Cmp, std::pmr::polymorphic_allocator<X>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/set/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/set/pmr_typedefs.cc
new file mode 100644
index 00000000000..f041c853118
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/set/pmr_typedefs.cc
@@ -0,0 +1,30 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <set>
+#include <memory_resource>
+
+struct X { };
+struct Cmp { bool operator()(X, X) const { return false; } };
+
+static_assert(std::is_same_v<std::pmr::set<X>,
+    std::set<X, std::less<X>, std::pmr::polymorphic_allocator<X>>>);
+static_assert(std::is_same_v<std::pmr::set<X, Cmp>,
+    std::set<X, Cmp, std::pmr::polymorphic_allocator<X>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/pmr_typedefs.cc
new file mode 100644
index 00000000000..c628539663e
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/pmr_typedefs.cc
@@ -0,0 +1,37 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <unordered_map>
+#include <memory_resource>
+
+struct X { };
+struct Y { };
+struct Hash { std::size_t operator()(X) const { return 0; } };
+struct Eq { bool operator()(X, X) const { return true; } };
+
+static_assert(std::is_same_v<std::pmr::unordered_map<X, Y>,
+    std::unordered_map<X, Y, std::hash<X>, std::equal_to<X>,
+      std::pmr::polymorphic_allocator<std::pair<const X, Y>>>>);
+static_assert(std::is_same_v<std::pmr::unordered_map<X, Y, Hash>,
+    std::unordered_map<X, Y, Hash, std::equal_to<X>,
+      std::pmr::polymorphic_allocator<std::pair<const X, Y>>>>);
+static_assert(std::is_same_v<std::pmr::unordered_map<X, Y, Hash, Eq>,
+    std::unordered_map<X, Y, Hash, Eq,
+      std::pmr::polymorphic_allocator<std::pair<const X, Y>>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multimap/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/unordered_multimap/pmr_typedefs.cc
new file mode 100644
index 00000000000..849b5ab71e7
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multimap/pmr_typedefs.cc
@@ -0,0 +1,37 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <unordered_map>
+#include <memory_resource>
+
+struct X { };
+struct Y { };
+struct Hash { std::size_t operator()(X) const { return 0; } };
+struct Eq { bool operator()(X, X) const { return true; } };
+
+static_assert(std::is_same_v<std::pmr::unordered_multimap<X, Y>,
+    std::unordered_multimap<X, Y, std::hash<X>, std::equal_to<X>,
+      std::pmr::polymorphic_allocator<std::pair<const X, Y>>>>);
+static_assert(std::is_same_v<std::pmr::unordered_multimap<X, Y, Hash>,
+    std::unordered_multimap<X, Y, Hash, std::equal_to<X>,
+      std::pmr::polymorphic_allocator<std::pair<const X, Y>>>>);
+static_assert(std::is_same_v<std::pmr::unordered_multimap<X, Y, Hash, Eq>,
+    std::unordered_multimap<X, Y, Hash, Eq,
+      std::pmr::polymorphic_allocator<std::pair<const X, Y>>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/pmr_typedefs.cc
new file mode 100644
index 00000000000..c4eaaf5c7b7
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/pmr_typedefs.cc
@@ -0,0 +1,36 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <unordered_set>
+#include <memory_resource>
+
+struct X { };
+struct Hash { std::size_t operator()(X) const { return 0; } };
+struct Eq { bool operator()(X, X) const { return true; } };
+
+static_assert(std::is_same_v<std::pmr::unordered_multiset<X>,
+    std::unordered_multiset<X, std::hash<X>, std::equal_to<X>,
+      std::pmr::polymorphic_allocator<X>>>);
+static_assert(std::is_same_v<std::pmr::unordered_multiset<X, Hash>,
+    std::unordered_multiset<X, Hash, std::equal_to<X>,
+      std::pmr::polymorphic_allocator<X>>>);
+static_assert(std::is_same_v<std::pmr::unordered_multiset<X, Hash, Eq>,
+    std::unordered_multiset<X, Hash, Eq,
+      std::pmr::polymorphic_allocator<X>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_set/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/unordered_set/pmr_typedefs.cc
new file mode 100644
index 00000000000..ecd38235657
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/unordered_set/pmr_typedefs.cc
@@ -0,0 +1,36 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <unordered_set>
+#include <memory_resource>
+
+struct X { };
+struct Hash { std::size_t operator()(X) const { return 0; } };
+struct Eq { bool operator()(X, X) const { return true; } };
+
+static_assert(std::is_same_v<std::pmr::unordered_set<X>,
+    std::unordered_set<X, std::hash<X>, std::equal_to<X>,
+      std::pmr::polymorphic_allocator<X>>>);
+static_assert(std::is_same_v<std::pmr::unordered_set<X, Hash>,
+    std::unordered_set<X, Hash, std::equal_to<X>,
+      std::pmr::polymorphic_allocator<X>>>);
+static_assert(std::is_same_v<std::pmr::unordered_set<X, Hash, Eq>,
+    std::unordered_set<X, Hash, Eq,
+      std::pmr::polymorphic_allocator<X>>>);
diff --git a/libstdc++-v3/testsuite/23_containers/vector/pmr_typedefs.cc b/libstdc++-v3/testsuite/23_containers/vector/pmr_typedefs.cc
new file mode 100644
index 00000000000..d2f60febe8d
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/vector/pmr_typedefs.cc
@@ -0,0 +1,27 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <vector>
+#include <memory_resource>
+
+struct X { };
+
+static_assert(std::is_same_v<std::pmr::vector<X>,
+    std::vector<X, std::pmr::polymorphic_allocator<X>>>);
diff --git a/libstdc++-v3/testsuite/28_regex/match_results/pmr_typedefs.cc b/libstdc++-v3/testsuite/28_regex/match_results/pmr_typedefs.cc
new file mode 100644
index 00000000000..23aef39caf3
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/match_results/pmr_typedefs.cc
@@ -0,0 +1,44 @@ 
+// Copyright (C) 2018 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17" }
+// { dg-do compile { target c++17 } }
+
+#include <regex>
+#include <memory_resource>
+
+struct X;
+static_assert(std::is_same_v<std::pmr::match_results<X*>,
+    std::match_results<X*,
+      std::pmr::polymorphic_allocator<std::sub_match<X*>>>>);
+
+static_assert(std::is_same_v<std::pmr::cmatch,
+    std::match_results<const char*,
+      std::pmr::polymorphic_allocator<std::sub_match<const char*>>>>);
+static_assert(std::is_same_v<std::pmr::smatch,
+    std::match_results<std::pmr::string::const_iterator,
+      std::pmr::polymorphic_allocator<
+	std::sub_match<std::pmr::string::const_iterator>>>>);
+#ifdef _GLIBCXX_USE_WCHAR_T
+static_assert(std::is_same_v<std::pmr::wcmatch,
+    std::match_results<const wchar_t*,
+      std::pmr::polymorphic_allocator<std::sub_match<const wchar_t*>>>>);
+static_assert(std::is_same_v<std::pmr::wsmatch,
+    std::match_results<std::pmr::wstring::const_iterator,
+      std::pmr::polymorphic_allocator<
+	std::sub_match<std::pmr::wstring::const_iterator>>>>);
+#endif