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 package runtime.valhalla.valuetypes; 24 25 import jdk.test.lib.Asserts; 26 27 /* 28 * @test 29 * @summary Uninitialized value fields test 30 * @library /test/lib 31 * @compile -XDemitQtypes -XDenableValueTypes -XDallowWithFieldOperator -XDallowFlattenabilityModifiers Point.java JumboValue.java UninitializedValueFieldsTest.java 32 * @run main/othervm -Xint -XX:ValueFieldMaxFlatSize=64 -XX:+EnableValhalla runtime.valhalla.valuetypes.UninitializedValueFieldsTest 33 * @run main/othervm -Xcomp -XX:+EnableValhalla -XX:ValueFieldMaxFlatSize=64 runtime.valhalla.valuetypes.UninitializedValueFieldsTest 34 */ 35 public class UninitializedValueFieldsTest { 36 static Point.box nonFlattenableStaticPoint; 37 static Point.val staticPoint; 38 39 Point instancePoint; 40 41 static JumboValue.box sj1; 42 static JumboValue.val sj2; 43 44 JumboValue.box j1; 45 JumboValue.val j2; 46 47 static Object getNull() { 48 return null; 49 } 50 51 UninitializedValueFieldsTest() { } 52 53 public static void main(String[] args) { 54 checkUninitializedPoint(UninitializedValueFieldsTest.staticPoint, 0, 0); 55 Asserts.assertEquals(nonFlattenableStaticPoint, null, "invalid non flattenable static value field"); 56 UninitializedValueFieldsTest.staticPoint = Point.createPoint(456, 678); 57 checkUninitializedPoint(UninitializedValueFieldsTest.staticPoint, 456, 678); 58 UninitializedValueFieldsTest test = new UninitializedValueFieldsTest(); 59 checkUninitializedPoint(test.instancePoint, 0, 0); 60 test.instancePoint = Point.createPoint(123, 345); 61 checkUninitializedPoint(test.instancePoint, 123, 345); 62 63 Asserts.assertEquals(test.j1, null, "invalid non flattenable instance value field"); 64 Asserts.assertEquals(test.j2.l0, 0L, "invalid flattenable instance value field"); 65 } 66 67 static void checkUninitializedPoint(Point p, int x, int y) { 68 Asserts.assertEquals(p.x, x, "invalid x value"); 69 Asserts.assertEquals(p.y, y, "invalid y value"); 70 } 71 }