| /* |
| * Copyright (c) 2024, 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 8336830 |
| * @summary C2: assert(get_loop(lca)->_nest < n_loop->_nest || lca->in(0)->is_NeverBranch()) failed: must not be moved into inner loop |
| * @library /test/lib |
| * @run main/othervm -XX:CompileCommand=compileonly,TestSunkNodeInInfiniteLoop::* -Xcomp TestSunkNodeInInfiniteLoop |
| * |
| */ |
| |
| import jdk.test.lib.Utils; |
| |
| public class TestSunkNodeInInfiniteLoop { |
| public static void main(String[] args) throws InterruptedException { |
| byte[] a = new byte[1]; |
| Thread thread = new Thread(() -> test(a)); |
| thread.setDaemon(true); |
| thread.start(); |
| Thread.sleep(Utils.adjustTimeout(4000)); |
| } |
| |
| static void test(byte[] a) { |
| // L0: |
| while(true) { |
| int i1 = a.length; |
| // L3: |
| while(true) { |
| int i2 = 0; |
| if ((i1--) <= 0) { break; /* ifle L0 */} |
| a[i2++] = -1; |
| // goto L3 |
| } |
| } |
| } |
| } |
