1 /* 2 * Copyright (c) 2017, 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 package org.graalvm.compiler.core.test; 24 25 import jdk.vm.ci.meta.ResolvedJavaMethod; 26 import org.graalvm.compiler.nodes.IfNode; 27 import org.graalvm.compiler.nodes.LogicNode; 28 import org.graalvm.compiler.nodes.ReturnNode; 29 import org.graalvm.compiler.nodes.calc.ObjectEqualsNode; 30 import org.junit.Test; 31 32 import java.util.HashMap; 33 34 public class HashMapGetTest extends GraalCompilerTest { 35 36 public static void mapGet(HashMap<Integer, Integer> map, Integer key) { 37 map.get(key); 38 } 39 40 @Test 41 public void hashMapTest() { 42 HashMap<Integer, Integer> map = new HashMap<>(); 43 ResolvedJavaMethod get = getResolvedJavaMethod(HashMapGetTest.class, "mapGet"); 44 for (int i = 0; i < 5000; i++) { 45 mapGet(map, i); 46 map.put(i, i); 47 mapGet(map, i); 48 } 49 test(get, null, map, new Integer(0)); 50 for (IfNode ifNode : lastCompiledGraph.getNodes(IfNode.TYPE)) { 51 LogicNode condition = ifNode.condition(); 52 if (ifNode.getTrueSuccessorProbability() < 0.4 && condition instanceof ObjectEqualsNode) { 53 assertTrue(ifNode.trueSuccessor().next() instanceof ReturnNode, "Expected return.", ifNode.trueSuccessor(), ifNode.trueSuccessor().next()); 54 } 55 } 56 } 57 58 }