| /* |
| * Copyright (c) 2018, Red Hat, Inc. 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 8201368 |
| * @summary IfNode::fold_compares() may lead to incorrect execution |
| * |
| * @run main/othervm -XX:-TieredCompilation -XX:-UseOnStackReplacement -XX:-BackgroundCompilation FoldedIfNonDomMidIf |
| * |
| */ |
| |
| public class FoldedIfNonDomMidIf { |
| public static void main(String[] args) { |
| for (int i = 0; i < 20_000; i++) { |
| test_helper(0, 0); |
| test_helper(20, 0); |
| test(12); |
| } |
| if (test(14) != null) { |
| throw new RuntimeException("Incorrect code execution"); |
| } |
| } |
| |
| private static Object test(int i) { |
| return test_helper(i, 0x42); |
| } |
| |
| static class A { |
| |
| } |
| |
| static final MyException myex = new MyException(); |
| |
| private static Object test_helper(int i, int j) { |
| Object res = null; |
| try { |
| if (i < 10) { |
| throw myex; |
| } |
| |
| if (i == 14) { |
| |
| } |
| |
| if (i > 15) { |
| throw myex; |
| } |
| } catch (MyException e) { |
| if (j == 0x42) { |
| res = new A(); |
| } |
| } |
| return res; |
| } |
| |
| private static class MyException extends Exception { |
| } |
| } |
