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 8073866 27 * @summary Fix for 8064703 may also cause stores between the allocation and arraycopy to be rexecuted after a deoptimization 28 * 29 * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement 30 * compiler.arraycopy.TestArrayCopyBadReexec 31 */ 32 33 package compiler.arraycopy; 34 35 public class TestArrayCopyBadReexec { 36 37 static int val; 38 39 static int[] m1(int[] src, int l) { 40 if (src == null) { 41 return null; 42 } 43 int[] dest = new int[10]; 44 val++; 45 try { 46 System.arraycopy(src, 0, dest, 0, l); 47 } catch (IndexOutOfBoundsException npe) { 48 } 49 return dest; 50 } 51 52 static public void main(String[] args) { 53 int[] src = new int[10]; 54 int[] res = null; 55 boolean success = true; 56 57 for (int i = 0; i < 20000; i++) { 58 m1(src, 10); 59 } 60 61 int val_before = val; 62 63 m1(src, -1); 64 65 if (val - val_before != 1) { 66 System.out.println("Bad increment: " + (val - val_before)); 67 throw new RuntimeException("Test failed"); 68 } 69 } 70 }