| /* |
| * Copyright (c) 2009, 2013, 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. |
| */ |
| |
| /** |
| * @test |
| * @bug 6636138 |
| * @summary SuperWord::co_locate_pack(Node_List* p) generates memory graph that leads to memory order violation. |
| * |
| * @run main/othervm -Xbatch -XX:CompileOnly=Test2.shift Test2 |
| */ |
| |
| public class Test2 { |
| |
| public static void init(int src[]) { |
| // Initialize the array |
| for (int i = 0; i < src.length; i++) |
| src[i] = i; |
| } |
| |
| public static void shift(int src[]) { |
| //left-shift the array |
| for (int i = src.length-1; i > 0; i--){ |
| int tmp = src[i]; |
| src[i] = src[i-1]; |
| src[i-1] = tmp; |
| } |
| } |
| |
| public static void verify(int src[]) { |
| for (int i = 0; i < src.length; i++){ |
| int value = (i-1 + src.length)%src.length; // correct value after shifting |
| if (src[i] != value) { |
| System.out.println("Error: src["+i+"] should be "+ value + " instead of " + src[i]); |
| System.exit(97); |
| } |
| } |
| } |
| |
| public static void test() { |
| int[] src = new int[10]; |
| init(src); |
| shift(src); |
| verify(src); |
| } |
| |
| public static void main(String[] args) { |
| for (int i=0; i< 2000; i++) |
| test(); |
| } |
| } |