QRegularExpression: add ways to force an immediate optimization

The fact that we kick in a pattern study and possibly a JIT compilation
after an undocumented number of usages is suboptimal, for a number
or reasons: users may want to JIT compile a pattern immediately,
and at the same time they may not want a random delay in the program
(due to the pattern getting optimized at a random usage).

So: add an optimize() call to force an immediate pattern optimization,
and a pattern option to force an optimization on the first usage.

Change-Id: I95efdecfd31f11ca7cceb9c05037df613601a11c
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/tests/auto/corelib/tools/qregularexpression/forceoptimize/tst_qregularexpression_forceoptimize.cpp b/tests/auto/corelib/tools/qregularexpression/forceoptimize/tst_qregularexpression_forceoptimize.cpp
new file mode 100644
index 0000000000..6244aacedf
--- /dev/null
+++ b/tests/auto/corelib/tools/qregularexpression/forceoptimize/tst_qregularexpression_forceoptimize.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QtTest>
+#include "../tst_qregularexpression.h"
+
+class tst_QRegularExpression_ForceOptimize : public tst_QRegularExpression
+{
+    Q_OBJECT
+};
+
+QTEST_APPLESS_MAIN(tst_QRegularExpression_ForceOptimize)
+
+#include "tst_qregularexpression_forceoptimize.moc"