obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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2 files changed, 76 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/20_util/tuple/requirements/dr801.cc b/libstdc++-v3/testsuite/20_util/tuple/requirements/dr801.cc
new file mode 100644
index 000000000..fd21b9ee5
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/tuple/requirements/dr801.cc
@@ -0,0 +1,52 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2010 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/>.
+
+#include <tuple>
+#include <type_traits>
+
+// DR 801, pair and tuple vs. "passed in registers"
+void test_trivial()
+{
+  // PODType, TType, NType, SLType, LType, NLType, LTypeDerived
+  typedef std::tuple<int, int> tuple_type;
+  // static_assert(std::is_literal_type<tuple_type>::value, "! literal");
+  static_assert(std::has_trivial_copy_constructor<tuple_type>::value,
+		"! triv copy");
+  static_assert(std::has_trivial_destructor<tuple_type>::value,
+		"! triv destructor");
+  // static_assert(std::is_standard_layout<tuple_type>::value,
+  //		   "! standard layout");
+
+  // Negative
+  /*
+  static_assert(std::has_trivial_default_constructor<tuple_type>::value,
+		"! triv default");
+  static_assert(std::has_trivial_copy_assign<tuple_type>::value,
+		"! triv assign");
+  static_assert(std::is_trivial<tuple_type>::value, "! triv");
+  static_assert(std::is_pod<tuple_type>::value, "! pod");
+  */
+}
+
+int main()
+{
+  test_trivial();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/20_util/tuple/requirements/explicit_instantiation.cc b/libstdc++-v3/testsuite/20_util/tuple/requirements/explicit_instantiation.cc
new file mode 100644
index 000000000..22b8f50f5
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/tuple/requirements/explicit_instantiation.cc
@@ -0,0 +1,24 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2007, 2009 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/>.
+
+
+#include <tuple>
+
+template class std::tuple<short, int, double>;