diff -r 18e65332ac5c -r 4d85990f9c4a test/hotspot/jtreg/vmTestbase/jit/deoptimization/test03/test03.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/hotspot/jtreg/vmTestbase/jit/deoptimization/test03/test03.java Fri Jun 01 15:48:55 2018 -0700 @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2008, 2018, 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 + * + * @summary converted from VM Testbase jit/deoptimization/test03. + * VM Testbase keywords: [jit, quick] + * + * @library /vmTestbase + * /test/lib + * @run driver jdk.test.lib.FileInstaller . . + * @build jit.deoptimization.test03.test03 + * @run driver ExecDriver --java jit.deoptimization.test03.test03 + */ + +package jit.deoptimization.test03; + +import nsk.share.TestFailure; + +/* + * Simple loop causes the optimizer to deoptimize + * foo methos when an instance of class B is created. + * + * run with the -XX:TraceDeoptimization to observ the result. + */ + +class test03 { + public static void main (String[] args) { + A obj = new A(); + for (int index = 0; index < 100; index++) { + obj.used_alot(); + } + } +} + +class A { + protected final int counter = 25000; + protected int count = 0; + public void foo(int index) { + count++; + + if (index == counter - 1) { + try { + ((B)Class.forName("B").newInstance()).foo(index); + } + catch(Exception e) { + } + } + } + + public synchronized void used_alot() { + for (int index = 0; index < counter - 1; index++) { + synchronized (extern_Lock) { + foo(index); + } + } + } + + Object extern_Lock = new Object(); +} + +class B extends A { + public void foo(int index) { + count--; + } +};