1 /* 2 * Copyright (c) 2018, 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 25 package org.graalvm.compiler.core.test.ea; 26 27 import java.util.concurrent.atomic.AtomicReference; 28 import java.util.concurrent.atomic.AtomicReferenceArray; 29 30 import org.graalvm.compiler.nodes.java.LogicCompareAndSwapNode; 31 import org.junit.Test; 32 33 import jdk.vm.ci.meta.JavaConstant; 34 35 public class UnsafeCompareAndSwapVirtualizationTest extends EATestBase { 36 37 private static Object obj1 = new Object(); 38 private static Object obj2 = new Object(); 39 private static final Object OBJ1 = new Object(); 40 41 public static boolean bothVirtualNoMatch() { 42 AtomicReference<Object> a = new AtomicReference<>(); 43 return a.compareAndSet(new Object(), new Object()); 44 } 45 46 @Test 47 public void bothVirtualNoMatchTest() { 48 testEscapeAnalysis("bothVirtualNoMatch", JavaConstant.INT_0, true); 49 assertTrue(graph.getNodes(LogicCompareAndSwapNode.TYPE).isEmpty()); 50 } 51 52 public static boolean bothVirtualMatch() { 53 Object expect = new Object(); 54 AtomicReference<Object> a = new AtomicReference<>(expect); 55 return a.compareAndSet(expect, new Object()); 56 } 57 58 @Test 59 public void bothVirtualMatchTest() { 60 testEscapeAnalysis("bothVirtualMatch", JavaConstant.INT_1, true); 61 assertTrue(graph.getNodes(LogicCompareAndSwapNode.TYPE).isEmpty()); 62 } 63 64 public static boolean expectedVirtualMatch() { 65 Object o = new Object(); 66 AtomicReference<Object> a = new AtomicReference<>(o); 67 return a.compareAndSet(o, obj1); 68 } 69 70 @Test 71 public void expectedVirtualMatchTest() { 72 testEscapeAnalysis("expectedVirtualMatch", JavaConstant.INT_1, true); 73 assertTrue(graph.getNodes(LogicCompareAndSwapNode.TYPE).isEmpty()); 74 } 75 76 public static boolean expectedVirtualNoMatch() { 77 Object o = new Object(); 78 AtomicReference<Object> a = new AtomicReference<>(); 79 return a.compareAndSet(o, obj1); 80 } 81 82 @Test 83 public void expectedVirtualNoMatchTest() { 84 testEscapeAnalysis("expectedVirtualNoMatch", JavaConstant.INT_0, true); 85 assertTrue(graph.getNodes(LogicCompareAndSwapNode.TYPE).isEmpty()); 86 } 87 88 public static boolean bothNonVirtualNoMatch() { 89 AtomicReference<Object> a = new AtomicReference<>(); 90 return a.compareAndSet(OBJ1, obj2); 91 } 92 93 @Test 94 public void bothNonVirtualNoMatchTest() { 95 testEscapeAnalysis("bothNonVirtualNoMatch", JavaConstant.INT_0, true); 96 assertTrue(graph.getNodes(LogicCompareAndSwapNode.TYPE).isEmpty()); 97 } 98 99 public static boolean bothNonVirtualMatch() { 100 AtomicReference<Object> a = new AtomicReference<>(OBJ1); 101 return a.compareAndSet(OBJ1, obj2); 102 } 103 104 @Test 105 public void bothNonVirtualMatchTest() { 106 testEscapeAnalysis("bothNonVirtualMatch", JavaConstant.INT_1, true); 107 assertTrue(graph.getNodes(LogicCompareAndSwapNode.TYPE).isEmpty()); 108 } 109 110 public static boolean onlyInitialValueVirtualNoMatch() { 111 AtomicReference<Object> a = new AtomicReference<>(new Object()); 112 return a.compareAndSet(obj1, obj2); 113 } 114 115 @Test 116 public void onlyInitialValueVirtualNoMatchTest() { 117 testEscapeAnalysis("onlyInitialValueVirtualNoMatch", JavaConstant.INT_0, true); 118 assertTrue(graph.getNodes(LogicCompareAndSwapNode.TYPE).isEmpty()); 119 } 120 121 public static boolean onlyInitialValueVirtualMatch() { 122 Object o = new Object(); 123 AtomicReference<Object> a = new AtomicReference<>(o); 124 return a.compareAndSet(o, obj2); 125 } 126 127 @Test 128 public void onlyInitialValueVirtualMatchTest() { 129 testEscapeAnalysis("onlyInitialValueVirtualMatch", JavaConstant.INT_1, true); 130 assertTrue(graph.getNodes(LogicCompareAndSwapNode.TYPE).isEmpty()); 131 } 132 133 public static boolean bothVirtualNoMatchArray() { 134 AtomicReferenceArray<Object> array = new AtomicReferenceArray<>(1); 135 return array.compareAndSet(0, new Object(), new Object()); 136 } 137 138 @Test 139 public void bothVirtualNoMatchArrayTest() { 140 testEscapeAnalysis("bothVirtualNoMatchArray", JavaConstant.INT_0, true); 141 assertTrue(graph.getNodes(LogicCompareAndSwapNode.TYPE).isEmpty()); 142 } 143 }