1/* 2 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* 25 * @test 26 * @bug 8050079 27 * @summary Compiles a monomorphic call to finalizeObject() on a modified java.lang.Object to test C1 CHA. 28 * 29 * @build java.base/java.lang.Object 30 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -Xcomp -XX:-VerifyDependencies 31 * -XX:TieredStopAtLevel=1 32 * -XX:CompileCommand=compileonly,compiler.dependencies.MonomorphicObjectCall.TestMonomorphicObjectCall::callFinalize 33 * -XX:CompileCommand=compileonly,java.lang.Object::finalizeObject 34 * compiler.dependencies.MonomorphicObjectCall.TestMonomorphicObjectCall 35 */ 36 37package compiler.dependencies.MonomorphicObjectCall; 38 39public class TestMonomorphicObjectCall { 40 41 private static void callFinalize(Object object) throws Throwable { 42 // Call modified version of java.lang.Object::finalize() that is 43 // not overridden by any subclass. C1 CHA should mark the call site 44 // as monomorphic and inline the method. 45 object.finalizeObject(); 46 } 47 48 public static void main(String[] args) throws Throwable { 49 // Trigger compilation of 'callFinalize' 50 callFinalize(new Object()); 51 } 52} 53