/* * Copyright (c) 2025 IBM Corporation. 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 8373508 * @summary C2: sinking CreateEx out of loop breaks the graph * @library /test/lib * @run main/othervm -Xbatch ${test.main.class} * @run main ${test.main.class} */ package compiler.loopopts; import jdk.test.lib.Utils; public class TestCreateExSunkOutOfLoop { volatile boolean _mutatorToggle; boolean _mutatorFlip() { _mutatorToggle = !_mutatorToggle; return _mutatorToggle; } void test() { int idx = -845; for (;;) { try { try { for (Object temp = new byte[idx];;) {;} } finally { boolean flag = _mutatorFlip(); _mutatorFlip(); for (;;) { if (flag) { break; } } } } catch (Throwable $) {;} } } public static void main(String[] strArr) throws InterruptedException { Thread thread = new Thread(() -> { TestCreateExSunkOutOfLoop t = new TestCreateExSunkOutOfLoop(); t.test(); }); thread.setDaemon(true); thread.start(); Thread.sleep(Utils.adjustTimeout(4000)); } }