| /* |
| * Copyright (c) 2020, 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 8240576 |
| * @summary JVM crashes after transformation in C2 IdealLoopTree::merge_many_backedges |
| * |
| * @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation |
| * compiler.loopopts.TestBeautifyLoops |
| */ |
| |
| package compiler.loopopts; |
| |
| public class TestBeautifyLoops { |
| private int mI = 0; |
| private long mJ = 0; |
| private float mF = 0f; |
| |
| public void testMethod() { |
| for (int i0 = 0; i0 < 100; i0++) { |
| if (mF != 0) { |
| // do nothing |
| } else { |
| try { |
| mJ = Long.MAX_VALUE; |
| for (int i1 = 0; i1 < 101; i1++) { |
| for (int i2 = 0; i2 < 102; i2++) { |
| mI = new Integer(0x1234); |
| } |
| } |
| } catch (Exception ignored) {} |
| } |
| } |
| } |
| |
| public static void main(String[] args) { |
| TestBeautifyLoops obj = new TestBeautifyLoops(); |
| obj.testMethod(); |
| } |
| } |
