1 /* 2 * Copyright (c) 2017, 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 package runtime.valhalla.inlinetypes; 24 25 import jdk.internal.vm.annotation.NullRestricted; 26 import jdk.test.lib.Asserts; 27 28 /* 29 * @test InlineTypeGetField 30 * @summary Inline Type get field test 31 * @library /test/lib 32 * @modules java.base/jdk.internal.vm.annotation 33 * @enablePreview 34 * @compile Point.java InlineTypeGetField.java 35 * @run main/othervm runtime.valhalla.inlinetypes.InlineTypeGetField 36 */ 37 public class InlineTypeGetField { 38 39 @NullRestricted 40 static Point staticPoint0; 41 @NullRestricted 42 static Point staticPoint1; 43 @NullRestricted 44 Point instancePoint0; 45 @NullRestricted 46 Point instancePoint1; 47 48 static { 49 staticPoint0 = new Point(358, 406); 50 staticPoint1 = new Point(101, 2653); 51 } 52 53 InlineTypeGetField() { 54 instancePoint0 = new Point(1890, 1918); 55 instancePoint1 = new Point(91, 102); 56 } 57 58 public static void main(String[] args) { 59 InlineTypeGetField inlineTypeGetField = new InlineTypeGetField(); 60 System.gc(); // check that VTs survive GC 61 inlineTypeGetField.run(); 62 } 63 64 public void run() { 65 // testing initial configuration 66 checkPoint(staticPoint0, 358, 406); 67 checkPoint(staticPoint1, 101, 2653); 68 checkPoint(instancePoint0, 1890, 1918); 69 checkPoint(instancePoint1, 91, 102); 70 // swapping static fields 71 Point p = staticPoint1; 72 staticPoint1 = staticPoint0; 73 staticPoint0 = p; 74 System.gc(); 75 checkPoint(staticPoint0, 101, 2653); 76 checkPoint(staticPoint1, 358, 406); 77 //swapping instance fields 78 p = instancePoint1; 79 instancePoint1 = instancePoint0; 80 instancePoint0 = p; 81 System.gc(); 82 checkPoint(instancePoint0, 91, 102); 83 checkPoint(instancePoint1, 1890, 1918); 84 // instance to static 85 staticPoint0 = instancePoint0; 86 System.gc(); 87 checkPoint(staticPoint0, 91, 102); 88 // static to instance 89 instancePoint1 = staticPoint1; 90 System.gc(); 91 checkPoint(instancePoint1, 358, 406); 92 } 93 94 static void checkPoint(Point p , int x, int y) { 95 Asserts.assertEquals(p.x, x, "invalid x value"); 96 Asserts.assertEquals(p.y, y, "invalid y value"); 97 } 98 }