1 /* 2 * Copyright (c) 2014, 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 import java.io.File; 25 import java.util.ArrayList; 26 import java.util.Collections; 27 28 import com.oracle.java.testlibrary.*; 29 30 /* 31 * @test 32 * @bug 8050079 33 * @summary Compiles a monomorphic call to finalizeObject() on a modified java.lang.Object to test C1 CHA. 34 * @library /testlibrary 35 * @build com.oracle.java.testlibrary.* 36 * @compile -XDignore.symbol.file java/lang/Object.java TestMonomorphicObjectCall.java 37 * @run main TestMonomorphicObjectCall 38 */ 39 public class TestMonomorphicObjectCall { 40 final static String testClasses = System.getProperty("test.classes") + File.separator; 41 42 private static void callFinalize(Object object) throws Throwable { 43 // Call modified version of java.lang.Object::finalize() that is 44 // not overridden by any subclass. C1 CHA should mark the call site 45 // as monomorphic and inline the method. 46 object.finalizeObject(); 47 } 48 49 public static void main(String[] args) throws Throwable { 50 if (args.length == 0) { 51 // Execute new instance with modified java.lang.Object 52 executeTestJvm(); 53 } else { 54 // Trigger compilation of 'callFinalize' 55 callFinalize(new Object()); 56 } 57 } 58 59 public static void executeTestJvm() throws Throwable { 60 // Execute test with modified version of java.lang.Object 61 // in -Xbootclasspath. 62 String[] vmOpts = new String[] { 63 "-Xbootclasspath/p:" + testClasses, 64 "-Xcomp", 65 "-XX:+IgnoreUnrecognizedVMOptions", 66 "-XX:-VerifyDependencies", 67 "-XX:CompileOnly=TestMonomorphicObjectCall::callFinalize", 68 "-XX:CompileOnly=Object::finalizeObject", 69 "-XX:TieredStopAtLevel=1", 70 TestMonomorphicObjectCall.class.getName(), 71 "true"}; 72 OutputAnalyzer output = ProcessTools.executeTestJvm(vmOpts); 73 output.shouldHaveExitValue(0); 74 } 75 }