| /* |
| * Copyright (c) 2019, Huawei Technologies Co. Ltd. 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 8231988 |
| * @summary Unexpected test result caused by C2 IdealLoopTree::do_remove_empty_loop |
| * |
| * @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation |
| * TestRemoveEmptyLoop |
| */ |
| |
| public class TestRemoveEmptyLoop { |
| |
| public void test() { |
| int i = 34; |
| for (; i > 0; i -= 11); |
| if (i < 0) { |
| // do nothing |
| } else { |
| throw new RuntimeException("Test failed."); |
| } |
| } |
| |
| public static void main(String[] args) { |
| TestRemoveEmptyLoop _instance = new TestRemoveEmptyLoop(); |
| for (int i = 0; i < 50000; i++) { |
| _instance.test(); |
| } |
| System.out.println("Test passed."); |
| } |
| |
| } |
