1 /* 2 * Copyright (c) 2017, 2018, 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 package compiler.valhalla.valuetypes; 25 26 27 import java.lang.invoke.*; 28 29 import jdk.experimental.value.MethodHandleBuilder; 30 import jdk.incubator.mvt.ValueType; 31 32 /** 33 * @test 34 * @bug 8185339 35 * @summary Test correct compilation of MethodHandles with bound value type arguments. 36 * @modules java.base/jdk.experimental.value 37 * jdk.incubator.mvt 38 * @compile -XDenableValueTypes ValueCapableClass2.java TestBoundValueTypes.java 39 * @run main/othervm -XX:CompileCommand=compileonly,compiler.valhalla.valuetypes.TestBoundValueTypes::* 40 * -XX:CompileCommand=compileonly,java.lang.invoke.*::* compiler.valhalla.valuetypes.TestBoundValueTypes 41 */ 42 public class TestBoundValueTypes { 43 static final Object vcc = ValueCapableClass2.create(42L); 44 45 static final MethodHandle mh; 46 static { 47 final MethodHandle getU = MethodHandleBuilder.loadCode(MethodHandles.lookup(), "getU", 48 MethodType.methodType(long.class, ValueType.forClass(ValueCapableClass2.class).valueClass()), 49 CODE -> { 50 CODE. 51 vload(0). 52 vbox(ValueCapableClass2.class). 53 vunbox(ValueType.forClass(ValueCapableClass2.class).valueClass()). 54 getfield(ValueType.forClass(ValueCapableClass2.class).valueClass(), "u", "J"). 55 lreturn(); 56 }); 57 // Bind the value type argument to 'vcc' 58 mh = MethodHandles.insertArguments(getU, 0, vcc); 59 } 60 61 long test() throws Throwable { 62 return (long)mh.invoke(); 63 } 64 65 public static void main(String[] args) throws Throwable { 66 TestBoundValueTypes t = new TestBoundValueTypes(); 67 for (int i = 0; i < 100_000; ++i) { 68 if (t.test() != 42) { 69 throw new RuntimeException("Test failed"); 70 } 71 } 72 } 73 }