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

package compiler.longcountedloops;
import jdk.internal.misc.Unsafe;

import java.util.Objects;
/*
 * @test
 * @bug 8342692
 * @summary C2: long counted loop/long range checks: don't create loop-nest for short running loops
 * @modules java.base/jdk.internal.misc
 * @run main/othervm -XX:-BackgroundCompilation compiler.longcountedloops.TestShortRunningLongCountedLoopVectorization
 */

public class TestShortRunningLongCountedLoopVectorization {
    private static final Unsafe UNSAFE = Unsafe.getUnsafe();
    private static volatile int volatileField;

    public static void main(String[] args) {
        for (int i = 0; i < 20_000; i++) {
            test1();
        }
    }

    static int size = 1024;
    static long longSize = size;
    static int[] intArray = new int[size];

    public static void test1() {
        boolean doIt = true;
        int localSize = Integer.max(Integer.min(size, 10000), 0);
        int i = 0;
        while (true) {
            synchronized (new Object()) {};
            if (i >= localSize) {
                break;
            }
            if (doIt) {
                volatileField = 42;
                doIt = false;
            }
            long j = Objects.checkIndex(i, longSize);
            UNSAFE.putInt(intArray, Unsafe.ARRAY_INT_BASE_OFFSET + j * Unsafe.ARRAY_INT_INDEX_SCALE, 42);
            i++;
        }
    }
};