hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.jtt/src/org/graalvm/compiler/jtt/optimize/ArrayCopy01.java

/*
 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package org.graalvm.compiler.jtt.optimize;

import org.junit.Test;

import org.graalvm.compiler.jtt.JTTTest;

/*
 * Tests calls to the array copy method.
 */
public class ArrayCopy01 extends JTTTest {

    public static Object[] src = new Object[]{null, null};
    public static Object[] dest = new Object[]{null, null};
    static {
        // Ensure System is resolved
        System.arraycopy(src, 0, src, 0, src.length);
    }

    public static int test(int srcPos, int destPos, int length) {
        System.arraycopy(src, srcPos, dest, destPos, length);
        return 0;
    }

    @Test
    public void run0() throws Throwable {
        runTest("test", 0, 0, 0);
    }

    @Test
    public void run1() throws Throwable {
        runTest("test", 0, 0, -1);
    }

    @Test
    public void run2() throws Throwable {
        runTest("test", -1, 0, 0);
    }

    @Test
    public void run3() throws Throwable {
        runTest("test", 0, -1, 0);
    }

    @Test
    public void run4() throws Throwable {
        runTest("test", 0, 0, 2);
    }

    @Test
    public void run5() throws Throwable {
        runTest("test", 0, 1, 2);
    }

    @Test
    public void run6() throws Throwable {
        runTest("test", 1, 0, 2);
    }

    @Test
    public void run7() throws Throwable {
        runTest("test", 1, 1, -1);
    }

}