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73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
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// Copyright (C) 2021 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <QTest>
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#include <QtCore/QCoreApplication>
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#if __has_include(<valgrind/valgrind.h>)
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# include <valgrind/valgrind.h>
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# define HAVE_VALGRIND_H
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#endif
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class tst_BenchlibCallgrind: public QObject
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{
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Q_OBJECT
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private slots:
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void failInChildProcess();
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void twoHundredMillionInstructions();
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};
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void tst_BenchlibCallgrind::failInChildProcess()
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{
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#ifdef HAVE_VALGRIND_H
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static double f = 1.0;
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QBENCHMARK {
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for (int i = 0; i < 1000000; ++i) {
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f *= 1.1;
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if (RUNNING_ON_VALGRIND) QFAIL("Running under valgrind!");
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}
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}
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#else
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QSKIP("Skipping test because I can't see <valgrind/valgrind.h> - is valgrind installed ?");
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#endif
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}
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void tst_BenchlibCallgrind::twoHundredMillionInstructions()
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{
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#if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
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QBENCHMARK {
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__asm__ __volatile__(
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"mov $100000000,%%eax \n"
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"1: \n"
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"dec %%eax \n"
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"jnz 1b \n"
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: /* no output */
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: /* no input */
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: /* clobber */ "eax"
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);
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}
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#else
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QSKIP("This test is only implemented for gcc on x86.");
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#endif
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}
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QTEST_MAIN_WRAPPER(tst_BenchlibCallgrind,
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std::vector<const char*> args(argv, argv + argc);
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// Add the -callgrind argument unless (it's there anyway or) we're the
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// recursive invocation with -callgrindchild passed.
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if (std::find_if(args.begin(), args.end(),
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[](const char *arg) {
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return qstrcmp(arg, "-callgrindchild") == 0
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|| qstrcmp(arg, "-callgrind") == 0;
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}) == args.end()) {
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args.push_back("-callgrind");
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argc = args.size();
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argv = const_cast<char**>(&args[0]);
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}
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QTEST_MAIN_SETUP())
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#undef HAVE_VALGRIND_H
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#include "tst_benchlibcallgrind.moc"
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