108 lines
3.7 KiB
Java
108 lines
3.7 KiB
Java
/*
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* Copyright (c) 2019, 2022, Oracle and/or its affiliates. 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 OSRFailureLevel4Test
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* @summary check that not compilable OSR level 4 results in falling back to level 1
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* @library /test/lib /
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* @modules java.base/jdk.internal.misc
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* java.management
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*
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* @requires vm.opt.DeoptimizeALot != true
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* @comment the test can't be run w/ TieredStopAtLevel < 4
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* @requires vm.flavor == "server" & (vm.opt.TieredStopAtLevel == null | vm.opt.TieredStopAtLevel == 4)
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*
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* @build jdk.test.whitebox.WhiteBox
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
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* -XX:+WhiteBoxAPI -XX:+TieredCompilation compiler.whitebox.OSRFailureLevel4Test
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*/
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package compiler.whitebox;
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import jdk.test.whitebox.WhiteBox;
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import java.lang.reflect.Executable;
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import java.lang.reflect.Method;
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import jtreg.SkippedException;
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public class OSRFailureLevel4Test extends Thread {
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private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
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private static final long BACKEDGE_THRESHOLD = 150000;
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private Method method;
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public static void main(String[] args) throws Exception {
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if (CompilerWhiteBoxTest.skipOnTieredCompilation(false)) {
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throw new SkippedException("Test isn't applicable for non-tiered mode");
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}
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OSRFailureLevel4Test test = new OSRFailureLevel4Test();
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test.test();
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}
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/**
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* Triggers two different OSR compilations for the same method and
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* checks if WhiteBox.deoptimizeMethod() deoptimizes both.
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*
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* @throws Exception
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*/
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public void test() throws Exception {
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method = OSRFailureLevel4Test.class.getDeclaredMethod("run");
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WHITE_BOX.makeMethodNotCompilable(method, 4, true);
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Thread t = new OSRFailureLevel4Test();
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t.setDaemon(true);
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t.start();
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int currentLevel = 0;
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int loops = 0;
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while (true) {
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int level = WHITE_BOX.getMethodCompilationLevel(method, true);
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if (level == 1) {
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System.err.println("success");
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running = false;
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return;
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}
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if (level == currentLevel) {
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Thread.sleep(1000);
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loops++;
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if (loops > 100) {
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running = false;
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throw new AssertionError("Never reached level 1");
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}
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continue;
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}
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currentLevel = level;
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System.err.println("Current level = " + currentLevel);
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}
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}
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static volatile int counter = 0;
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static boolean running = true;
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public void run() {
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while (running) {
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counter++;
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}
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}
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}
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