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