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diff --git a/libstdc++-v3/testsuite/22_locale/global_templates/user_facet_hierarchies.cc b/libstdc++-v3/testsuite/22_locale/global_templates/user_facet_hierarchies.cc
new file mode 100644
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+++ b/libstdc++-v3/testsuite/22_locale/global_templates/user_facet_hierarchies.cc
@@ -0,0 +1,104 @@
+// Copyright (C) 2007, 2008, 2009 Free Software Foundation
+//
+// 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/>.
+
+#include <string>
+#include <locale>
+#include <testsuite_hooks.h>
+
+// Based on Langer Kreft "Standard C++ IOStreams and Locales" p 316-318
+struct base_facet: public std::locale::facet
+{
+  virtual std::string msg() const
+  { return "base class"; }
+
+  static std::locale::id id;
+};
+
+std::locale::id base_facet::id;
+
+
+struct derived_facet: public base_facet
+{
+  virtual std::string msg() const
+  { return "derived class"; }
+
+  virtual std::string msg_repeater() const
+  { return "derived class derived class"; }
+
+};
+
+// PR libstdc++/30127
+// PR libstdc++/34449
+int main()
+{
+  bool test __attribute__((unused)) = true;
+
+  using std::locale;
+  using std::has_facet;
+  using std::use_facet;
+
+  locale loc_c = locale::classic();
+  locale loc_base(loc_c, new base_facet);
+  locale loc_derived(loc_c, new derived_facet);
+
+  // Standard facets.
+  VERIFY( has_facet<std::ctype<char> >(loc_c) );
+  VERIFY( has_facet<std::ctype<char> >(loc_base) );
+  VERIFY( has_facet<std::ctype<char> >(loc_derived) );
+
+  // User defined base facet.
+  VERIFY( !has_facet<base_facet>(loc_c) );
+  VERIFY( has_facet<base_facet>(loc_base) );
+  VERIFY( has_facet<base_facet>(loc_derived) );
+
+  // User defined derived facet.
+  VERIFY( !has_facet<derived_facet>(loc_c) );
+  VERIFY( !has_facet<derived_facet>(loc_base) );
+  VERIFY( has_facet<derived_facet>(loc_derived) );
+
+
+  // 1
+  try
+    {
+      if (has_facet<derived_facet>(loc_base))
+	{
+	  use_facet<derived_facet>(loc_base).msg_repeater();
+	  VERIFY( false );
+	}
+    }
+  catch (...)
+    { 
+      // Expect no exception.
+      VERIFY( true );
+    }
+
+  // 2
+  try
+    {
+      if (has_facet<base_facet>(loc_derived))
+	use_facet<base_facet>(loc_derived).msg();
+      else
+	VERIFY( true );
+    }
+  catch (...)
+    { 
+      // Expect no exception.
+      VERIFY( true );
+    }
+
+  return 0;
+}