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diff --git a/tests/benchmarks/corelib/text/qlocale/main.cpp b/tests/benchmarks/corelib/text/qlocale/main.cpp
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+++ b/tests/benchmarks/corelib/text/qlocale/main.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QLocale>
+#include <QTest>
+
+class tst_QLocale : public QObject
+{
+    Q_OBJECT
+
+private Q_SLOTS:
+    void toUpper_QLocale_1();
+    void toUpper_QLocale_2();
+    void toUpper_QString();
+};
+
+static QString data()
+{
+    return QStringLiteral("/qt-5/qtbase/tests/benchmarks/corelib/tools/qlocale");
+}
+
+#define LOOP(s) for (int i = 0; i < 5000; ++i) { s; }
+
+void tst_QLocale::toUpper_QLocale_1()
+{
+    QString s = data();
+    QBENCHMARK { LOOP(QLocale().toUpper(s)) }
+}
+
+void tst_QLocale::toUpper_QLocale_2()
+{
+    QString s = data();
+    QLocale l;
+    QBENCHMARK { LOOP(l.toUpper(s)) }
+}
+
+void tst_QLocale::toUpper_QString()
+{
+    QString s = data();
+    QBENCHMARK { LOOP(s.toUpper()) }
+}
+
+QTEST_MAIN(tst_QLocale)
+
+#include "main.moc"