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diff --git a/tests/benchmarks/corelib/text/qstringbuilder/tst_bench_qstringbuilder.cpp b/tests/benchmarks/corelib/text/qstringbuilder/tst_bench_qstringbuilder.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// Select one of the scenarios below
+#define SCENARIO 1
+
+#if SCENARIO == 1
+// this is the "no harm done" version. Only operator% is active,
+// with NO_CAST * defined
+#undef QT_USE_FAST_OPERATOR_PLUS
+#undef QT_USE_FAST_CONCATENATION
+#define QT_NO_CAST_FROM_ASCII
+#define QT_NO_CAST_TO_ASCII
+#endif
+
+
+#if SCENARIO == 2
+// this is the "full" version. Operator+ is replaced by a QStringBuilder
+// based version
+// with NO_CAST * defined
+#define QT_USE_FAST_OPERATOR_PLUS
+#define QT_USE_FAST_CONCATENATION
+#define QT_NO_CAST_FROM_ASCII
+#define QT_NO_CAST_TO_ASCII
+#endif
+
+#if SCENARIO == 3
+// this is the "no harm done" version. Only operator% is active,
+// with NO_CAST * _not_ defined
+#undef QT_USE_FAST_OPERATOR_PLUS
+#undef QT_USE_FAST_CONCATENATION
+#undef QT_NO_CAST_FROM_ASCII
+#undef QT_NO_CAST_TO_ASCII
+#endif
+
+#if SCENARIO == 4
+// this is the "full" version. Operator+ is replaced by a QStringBuilder
+// based version
+// with NO_CAST * _not_ defined
+#define QT_USE_FAST_OPERATOR_PLUS
+#define QT_USE_FAST_CONCATENATION
+#undef QT_NO_CAST_FROM_ASCII
+#undef QT_NO_CAST_TO_ASCII
+#endif
+
+
+#include <qbytearray.h>
+#include <qdebug.h>
+#include <qstring.h>
+#include <qstringbuilder.h>
+
+#include <qtest.h>
+
+#include <string>
+
+// Select one of the scenarios below
+#if SCENARIO == 1
+#define P %
+#elif SCENARIO == 2
+#define P +
+#elif SCENARIO == 3
+#define P %
+#elif SCENARIO == 4
+#define P +
+#endif
+
+#define COMPARE(a, b) QCOMPARE(a, b)
+//#define COMPARE(a, b)
+
+#define SEP(s) qDebug() << "\n\n-------- " s " ---------";
+
+#define LITERAL "some string literal"
+
+class tst_QStringBuilder : public QObject
+{
+ Q_OBJECT
+
+public:
+ tst_QStringBuilder()
+ : l1literal(LITERAL),
+ l1string(LITERAL),
+ ba(LITERAL),
+ string(l1string),
+ stdstring(LITERAL),
+ achar('c'),
+ r2(QLatin1String(LITERAL LITERAL)),
+ r3(QLatin1String(LITERAL LITERAL LITERAL)),
+ r4(QLatin1String(LITERAL LITERAL LITERAL LITERAL)),
+ r5(QLatin1String(LITERAL LITERAL LITERAL LITERAL LITERAL))
+ {}
+
+
+public:
+ enum { N = 10000 };
+
+ int run_traditional()
+ {
+ int s = 0;
+ for (int i = 0; i < N; ++i) {
+#if 0
+ s += QString(l1string + l1string).size();
+ s += QString(l1string + l1string + l1string).size();
+ s += QString(l1string + l1string + l1string + l1string).size();
+ s += QString(l1string + l1string + l1string + l1string + l1string).size();
+#endif
+ s += QString(achar + l1string + achar).size();
+ }
+ return s;
+ }
+
+ int run_builder()
+ {
+ int s = 0;
+ for (int i = 0; i < N; ++i) {
+#if 0
+ s += QString(l1literal P l1literal).size();
+ s += QString(l1literal P l1literal P l1literal).size();
+ s += QString(l1literal P l1literal P l1literal P l1literal).size();
+ s += QString(l1literal P l1literal P l1literal P l1literal P l1literal).size();
+#endif
+ s += QString(achar % l1literal % achar).size();
+ }
+ return s;
+ }
+
+private slots:
+
+ void separator_0() {
+ qDebug() << "\nIn each block the QStringBuilder based result appear first "
+ "(with a 'b_' prefix), QStringBased second ('q_' prefix), std::string "
+ "last ('s_' prefix)\n";
+ }
+
+ void separator_1() { SEP("literal + literal (builder first)"); }
+
+ void b_2_l1literal() {
+ QBENCHMARK { r = l1literal P l1literal; }
+ COMPARE(r, r2);
+ }
+ #ifndef QT_NO_CAST_FROM_ASCII
+ void b_l1literal_LITERAL() {
+ QBENCHMARK { r = l1literal P LITERAL; }
+ COMPARE(r, r2);
+ }
+ #endif
+ void q_2_l1string() {
+ QBENCHMARK { r = l1string + l1string; }
+ COMPARE(r, r2);
+ }
+
+
+ void separator_2() { SEP("2 strings"); }
+
+ void b_2_string() {
+ QBENCHMARK { r = string P string; }
+ COMPARE(r, r2);
+ }
+ void q_2_string() {
+ QBENCHMARK { r = string + string; }
+ COMPARE(r, r2);
+ }
+ void s_2_string() {
+ QBENCHMARK { stdr = stdstring + stdstring; }
+ COMPARE(stdr, stdstring + stdstring);
+ }
+
+
+ void separator_2b() { SEP("3 strings"); }
+
+ void b_3_string() {
+ QBENCHMARK { r = string P string P string; }
+ COMPARE(r, r3);
+ }
+ void q_3_string() {
+ QBENCHMARK { r = string + string + string; }
+ COMPARE(r, r3);
+ }
+ void s_3_string() {
+ QBENCHMARK { stdr = stdstring + stdstring + stdstring; }
+ COMPARE(stdr, stdstring + stdstring + stdstring);
+ }
+
+ void separator_2e() { SEP("4 strings"); }
+
+ void b_4_string() {
+ QBENCHMARK { r = string P string P string P string; }
+ COMPARE(r, r4);
+ }
+ void q_4_string() {
+ QBENCHMARK { r = string + string + string + string; }
+ COMPARE(r, r4);
+ }
+ void s_4_string() {
+ QBENCHMARK { stdr = stdstring + stdstring + stdstring + stdstring; }
+ COMPARE(stdr, stdstring + stdstring + stdstring + stdstring);
+ }
+
+
+
+ void separator_2a() { SEP("string + literal (builder first)"); }
+
+ void b_string_l1literal() {
+ QBENCHMARK { r = string % l1literal; }
+ COMPARE(r, r2);
+ }
+ #ifndef QT_NO_CAST_FROM_ASCII
+ void b_string_LITERAL() {
+ QBENCHMARK { r = string P LITERAL; }
+ COMPARE(r, r2);
+ }
+ void b_LITERAL_string() {
+ QBENCHMARK { r = LITERAL P string; }
+ COMPARE(r, r2);
+ }
+ #endif
+ void b_string_l1string() {
+ QBENCHMARK { r = string P l1string; }
+ COMPARE(r, r2);
+ }
+ void q_string_l1literal() {
+ QBENCHMARK { r = string + l1string; }
+ COMPARE(r, r2);
+ }
+ void q_string_l1string() {
+ QBENCHMARK { r = string + l1string; }
+ COMPARE(r, r2);
+ }
+ void s_LITERAL_string() {
+ QBENCHMARK { stdr = LITERAL + stdstring; }
+ COMPARE(stdr, stdstring + stdstring);
+ }
+
+
+ void separator_3() { SEP("3 literals"); }
+
+ void b_3_l1literal() {
+ QBENCHMARK { r = l1literal P l1literal P l1literal; }
+ COMPARE(r, r3);
+ }
+ void q_3_l1string() {
+ QBENCHMARK { r = l1string + l1string + l1string; }
+ COMPARE(r, r3);
+ }
+ void s_3_l1string() {
+ QBENCHMARK { stdr = stdstring + LITERAL + LITERAL; }
+ COMPARE(stdr, stdstring + stdstring + stdstring);
+ }
+
+
+ void separator_4() { SEP("4 literals"); }
+
+ void b_4_l1literal() {
+ QBENCHMARK { r = l1literal P l1literal P l1literal P l1literal; }
+ COMPARE(r, r4);
+ }
+ void q_4_l1string() {
+ QBENCHMARK { r = l1string + l1string + l1string + l1string; }
+ COMPARE(r, r4);
+ }
+
+
+ void separator_5() { SEP("5 literals"); }
+
+ void b_5_l1literal() {
+ QBENCHMARK { r = l1literal P l1literal P l1literal P l1literal P l1literal; }
+ COMPARE(r, r5);
+ }
+
+ void q_5_l1string() {
+ QBENCHMARK { r = l1string + l1string + l1string + l1string + l1string; }
+ COMPARE(r, r5);
+ }
+
+
+ void separator_6() { SEP("4 chars"); }
+
+ void b_string_4_char() {
+ QBENCHMARK { r = string + achar + achar + achar + achar; }
+ COMPARE(r, QString(string P achar P achar P achar P achar));
+ }
+
+ void q_string_4_char() {
+ QBENCHMARK { r = string + achar + achar + achar + achar; }
+ COMPARE(r, QString(string P achar P achar P achar P achar));
+ }
+
+ void s_string_4_char() {
+ QBENCHMARK { stdr = stdstring + 'c' + 'c' + 'c' + 'c'; }
+ COMPARE(stdr, stdstring + 'c' + 'c' + 'c' + 'c');
+ }
+
+
+ void separator_7() { SEP("char + string + char"); }
+
+ void b_char_string_char() {
+ QBENCHMARK { r = achar + string + achar; }
+ COMPARE(r, QString(achar P string P achar));
+ }
+
+ void q_char_string_char() {
+ QBENCHMARK { r = achar + string + achar; }
+ COMPARE(r, QString(achar P string P achar));
+ }
+
+ void s_char_string_char() {
+ QBENCHMARK { stdr = 'c' + stdstring + 'c'; }
+ COMPARE(stdr, 'c' + stdstring + 'c');
+ }
+
+
+ void separator_8() { SEP("string.arg"); }
+
+ void b_string_arg() {
+ const QString pattern = l1string + QString::fromLatin1("%1") + l1string;
+ QBENCHMARK { r = l1literal P string P l1literal; }
+ COMPARE(r, r3);
+ }
+
+ void q_string_arg() {
+ const QString pattern = l1string + QLatin1String("%1") + l1string;
+ QBENCHMARK { r = pattern.arg(string); }
+ COMPARE(r, r3);
+ }
+
+ void q_bytearray_arg() {
+ QByteArray result;
+ QBENCHMARK { result = ba + ba + ba; }
+ }
+
+
+ void separator_9() { SEP("QString::reserve()"); }
+
+ void b_reserve() {
+ QBENCHMARK {
+ r.clear();
+ r = string P string P string P string;
+ }
+ COMPARE(r, r4);
+ }
+ void b_reserve_lit() {
+ QBENCHMARK {
+ r.clear();
+ r = string P l1literal P string P string;
+ }
+ COMPARE(r, r4);
+ }
+ void s_reserve() {
+ QBENCHMARK {
+ r.clear();
+ r.reserve(string.size() + string.size() + string.size() + string.size());
+ r += string;
+ r += string;
+ r += string;
+ r += string;
+ }
+ COMPARE(r, r4);
+ }
+ void s_reserve_lit() {
+ QBENCHMARK {
+ r.clear();
+ //r.reserve(string.size() + qstrlen(l1string.latin1())
+ // + string.size() + string.size());
+ r.reserve(1024);
+ r += string;
+ r += l1string;
+ r += string;
+ r += string;
+ }
+ COMPARE(r, r4);
+ }
+
+private:
+ const QLatin1String l1literal;
+ const QLatin1String l1string;
+ const QByteArray ba;
+ const QString string;
+ const std::string stdstring;
+ const QLatin1Char achar;
+ const QString r2, r3, r4, r5;
+
+ // short cuts for results
+ QString r;
+ std::string stdr;
+};
+
+#undef P
+
+QTEST_MAIN(tst_QStringBuilder)
+
+#include "tst_bench_qstringbuilder.moc"