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diff --git a/libstdc++-v3/testsuite/performance/ext/pb_ds/priority_queue_text_modify_timing.hpp b/libstdc++-v3/testsuite/performance/ext/pb_ds/priority_queue_text_modify_timing.hpp
new file mode 100644
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+++ b/libstdc++-v3/testsuite/performance/ext/pb_ds/priority_queue_text_modify_timing.hpp
@@ -0,0 +1,127 @@
+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 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/>.
+
+
+// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
+
+// Permission to use, copy, modify, sell, and distribute this software
+// is hereby granted without fee, provided that the above copyright
+// notice appears in all copies, and that both that copyright notice
+// and this permission notice appear in supporting documentation. None
+// of the above authors, nor IBM Haifa Research Laboratories, make any
+// representation about the suitability of this software for any
+// purpose. It is provided "as is" without express or implied
+// warranty.
+
+/**
+ * @file priority_queue_text_modify_timing_test.cpp
+ * Contains test for finding text.
+ */
+
+#include <ext/typelist.h>
+#include <performance/io/xml_formatter.hpp>
+#include <io/verified_cmd_line_input.hpp>
+#include <common_type/priority_queue/common_type.hpp>
+#include <performance/priority_queue/timing/modify_test.hpp>
+#include <io/text_populate.hpp>
+#include <native_type/native_priority_queue.hpp>
+#include <iostream>
+#include <vector>
+
+void
+usage();
+
+void
+set_test_parameters(bool& b);
+
+int
+main(int argc, char* a_p_argv[])
+{
+  using namespace __gnu_pbds::test;
+
+  std::string f_name = "thirty_years_among_the_dead_preproc.txt";
+  size_t vn = 100;
+  size_t vs = 100;
+  size_t vm = 1100;
+  bool modify_up;
+
+  set_test_parameters(modify_up);
+
+  try
+    {
+      xml_test_performance_formatter fmt("Size", "Average time (sec.)");
+
+      typedef std::vector<std::pair<std::string, char> > vec_t;
+      vec_t a_v(vm);
+      text_populate(f_name, a_v);
+
+      typedef modify_test<vec_t::const_iterator> test_t;
+      vec_t::const_iterator b = a_v.begin();
+      test_t tst(b, vn, vs, vm, modify_up);
+      {
+	typedef pq_common_types<std::string>::performance_tl pq_tl_t;
+	pq_tl_t tl;
+	__gnu_cxx::typelist::apply(tst, tl);
+      }
+
+      {
+	typedef native_priority_queue<std::string, true> native_pq_t;
+	tst(native_pq_t());
+      }
+
+      {
+	typedef native_priority_queue<std::string, false> native_pq_t;
+	tst(native_pq_t());
+      }
+    }
+  catch (...)
+    {
+      std::cerr << "Test failed" << std::endl;
+      return -1;
+    }
+  return 0;
+}
+
+void
+usage()
+{
+  using namespace std;
+  cerr << "usage: priority_queue_text_modify_timing_test <f_name> <vn> <vs> <vm> <modify_up>" <<
+    endl << endl;
+
+  cerr <<
+    "This test checks the performance of various priority_queueiative containers "
+    "using their modify method. " << endl;
+  cerr << "Specifically, it does the following:" << endl;
+  cerr << "*  Creates a vector of text words " << endl;
+  cerr << "*  Pushes the elements into the container" << endl;
+  cerr << "*  Modifies the words in the container. If modify_up == 't', then" << endl;
+  cerr << "*      it modifies them to the largest word. If modify_up == 'f', then" << endl;
+  cerr << "*      it modifies them to the smallest word." << endl;
+  cerr << "*  Repeats the above test a number of times "
+	    << endl;
+
+  cerr << endl << endl;
+
+  cerr << "f_name = file name containing the text words. "
+    "Each line should contain one word." << endl;
+  cerr << "vn = minimum size of the vector" << endl;
+  cerr << "vs = step size of the vector" << endl;
+  cerr << "vm = maximum size of the vector" << endl;
+}