1 /* 2 * Copyright (c) 2015, 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 24 /* 25 * @test 26 * @bug 8134468 27 * @summary test that checks whether an array load falls into the range of an arraycopy is incorrect on 32bits 28 * 29 * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement 30 * compiler.arraycopy.TestArrayCopyOverflowInBoundChecks 31 */ 32 33 package compiler.arraycopy; 34 35 public class TestArrayCopyOverflowInBoundChecks { 36 37 static byte[] src_array = { 'a', 'b', 'c', 'd', 'e' }; 38 test(int copy_len)39 static byte test(int copy_len) { 40 byte[] dst_array = new byte[10]; 41 System.arraycopy(src_array, 0, dst_array, 1, copy_len); 42 return dst_array[1]; 43 } 44 main(String[] args)45 static public void main(String[] args) { 46 for (int i = 0; i < 20000; i++) { 47 if (test(src_array.length - 1) != src_array[0]) { 48 throw new RuntimeException("Test failed"); 49 } 50 } 51 } 52 } 53