/* * Copyright (c) 2015, 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 8073154 * @run main/othervm -XX:TypeProfileLevel=020 * -XX:CompileCommand=compileonly,compiler.print.TestProfileReturnTypePrinting::testMethod * -XX:+IgnoreUnrecognizedVMOptions -XX:+PrintLIR * compiler.print.TestProfileReturnTypePrinting * @summary Verify that c1's LIR that contains ProfileType node could be dumped * without a crash disregard to an exact class knowledge. */ package compiler.print; public class TestProfileReturnTypePrinting { private static final int ITERATIONS = 1_000_000; public static void main(String args[]) { for (int i = 0; i < ITERATIONS; i++) { TestProfileReturnTypePrinting.testMethod(i); } } private static int testMethod(int i) { return TestProfileReturnTypePrinting.foo().hashCode() + TestProfileReturnTypePrinting.bar(i).hashCode(); } /* Exact class of returned value is known statically. */ private static B foo() { return new B(); } /* Exact class of returned value is not known statically. */ private static Object bar(int i) { if (i % 2 == 0) { return new A(); } else { return new B(); } } private static class A { } private static class B extends A { } }