/*

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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 */

/*

 * @test

 * @bug 8184271

 * @summary Test correct scheduling of System.nanoTime and System.currentTimeMillis C1 intrinsics.

 * @run main/othervm -XX:TieredStopAtLevel=1 -Xbatch

 *                   -XX:CompileCommand=dontinline,compiler.c1.TestPinnedIntrinsics::checkNanoTime

 *                   -XX:CompileCommand=dontinline,compiler.c1.TestPinnedIntrinsics::checkCurrentTimeMillis

 *                   compiler.c1.TestPinnedIntrinsics

 */

package compiler.c1;

public class TestPinnedIntrinsics {

    private static void testNanoTime() {

        long start = System.nanoTime();

        long end = System.nanoTime();

        checkNanoTime(end - start);

    }

    private static void checkNanoTime(long diff) {

        if (diff < 0) {

            throw new RuntimeException("testNanoTime failed with " + diff);

        }

    }

    private static void testCurrentTimeMillis() {

        long start = System.currentTimeMillis();

        long end = System.currentTimeMillis();

        checkCurrentTimeMillis(end - start);

    }

    private static void checkCurrentTimeMillis(long diff) {

        if (diff < 0) {

            throw new RuntimeException("testCurrentTimeMillis failed with " + diff);

        }

    }

    public static void main(String[] args) {

        for (int i = 0; i < 100_000; ++i) {

            testNanoTime();

            testCurrentTimeMillis();

        }

    }

}