1 /* 2 * Copyright (c) 2016, 2024, 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 runtime.valhalla.inlinetypes; 25 26 import jdk.internal.value.ValueClass; 27 import jdk.internal.vm.annotation.ImplicitlyConstructible; 28 import jdk.internal.vm.annotation.LooselyConsistentValue; 29 30 /* 31 * @test Test8186715 32 * @summary test return of buffered inline type passed in argument by caller 33 * @library /test/lib 34 * @modules java.base/jdk.internal.vm.annotation 35 * java.base/jdk.internal.value 36 * @enablePreview 37 * @compile Test8186715.java 38 * @run main/othervm runtime.valhalla.inlinetypes.Test8186715 39 */ 40 41 public class Test8186715 { 42 43 public static void main(String[] args) { 44 MyValueType v = MyValueType.testDefault(); 45 46 for (int i = 0; i < 1000000; i++) { 47 MyValueType.testBranchArg1(false, v); 48 } 49 } 50 } 51 52 @ImplicitlyConstructible 53 @LooselyConsistentValue 54 value class MyValueType { 55 final int i; 56 final int j; 57 58 private MyValueType(int i, int j) { 59 this.i = i; 60 this.j = j; 61 } 62 63 static MyValueType testDefault() { 64 MyValueType[] array = (MyValueType[])ValueClass.newNullRestrictedArray(MyValueType.class, 1); 65 return array[0]; 66 } 67 68 static MyValueType testBranchArg1(boolean flag, MyValueType v1) { 69 if (flag) { 70 v1 = new MyValueType(3, 4); 71 } 72 return v1; 73 } 74 }