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