russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
73 lines
2.3 KiB
Java
73 lines
2.3 KiB
Java
/*
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* Copyright (c) 2025 IBM Corporation. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 8373508
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* @summary C2: sinking CreateEx out of loop breaks the graph
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* @library /test/lib
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* @run main/othervm -Xbatch ${test.main.class}
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* @run main ${test.main.class}
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*/
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package compiler.loopopts;
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import jdk.test.lib.Utils;
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public class TestCreateExSunkOutOfLoop {
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volatile boolean _mutatorToggle;
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boolean _mutatorFlip() {
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_mutatorToggle = !_mutatorToggle;
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return _mutatorToggle;
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}
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void test() {
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int idx = -845;
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for (;;) {
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try {
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try {
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for (Object temp = new byte[idx];;) {;}
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} finally {
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boolean flag = _mutatorFlip();
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_mutatorFlip();
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for (;;) {
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if (flag) {
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break;
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}
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}
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}
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} catch (Throwable $) {;}
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}
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}
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public static void main(String[] strArr) throws InterruptedException {
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Thread thread = new Thread(() -> {
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TestCreateExSunkOutOfLoop t = new TestCreateExSunkOutOfLoop();
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t.test();
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});
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thread.setDaemon(true);
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thread.start();
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Thread.sleep(Utils.adjustTimeout(4000));
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}
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}
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