1 /*
   2  * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.jtt.optimize;
  24 
  25 import org.junit.Test;
  26 
  27 import org.graalvm.compiler.jtt.JTTTest;
  28 
  29 /*
  30  * Tests calls to the array copy method.
  31  */
  32 public class ArrayCopy01 extends JTTTest {
  33 
  34     public static Object[] src = new Object[]{null, null};
  35     public static Object[] dest = new Object[]{null, null};
  36     static {
  37         // Ensure System is resolved
  38         System.arraycopy(src, 0, src, 0, src.length);
  39     }
  40 
  41     public static int test(int srcPos, int destPos, int length) {
  42         System.arraycopy(src, srcPos, dest, destPos, length);
  43         return 0;
  44     }
  45 
  46     @Test
  47     public void run0() throws Throwable {
  48         runTest("test", 0, 0, 0);
  49     }
  50 
  51     @Test
  52     public void run1() throws Throwable {
  53         runTest("test", 0, 0, -1);
  54     }
  55 
  56     @Test
  57     public void run2() throws Throwable {
  58         runTest("test", -1, 0, 0);
  59     }
  60 
  61     @Test
  62     public void run3() throws Throwable {
  63         runTest("test", 0, -1, 0);
  64     }
  65 
  66     @Test
  67     public void run4() throws Throwable {
  68         runTest("test", 0, 0, 2);
  69     }
  70 
  71     @Test
  72     public void run5() throws Throwable {
  73         runTest("test", 0, 1, 2);
  74     }
  75 
  76     @Test
  77     public void run6() throws Throwable {
  78         runTest("test", 1, 0, 2);
  79     }
  80 
  81     @Test
  82     public void run7() throws Throwable {
  83         runTest("test", 1, 1, -1);
  84     }
  85 
  86 }