src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/HashMapGetTest.java
author dlong
Thu, 14 Nov 2019 12:21:00 -0800
changeset 59095 03fbcd06b4c0
parent 52910 583fd71c47d6
permissions -rw-r--r--
8233841: Update Graal Reviewed-by: kvn
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/*
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 * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package org.graalvm.compiler.core.test;
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import jdk.vm.ci.meta.ResolvedJavaMethod;
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import org.graalvm.compiler.nodes.IfNode;
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import org.graalvm.compiler.nodes.LogicNode;
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import org.graalvm.compiler.nodes.ReturnNode;
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import org.graalvm.compiler.nodes.calc.ObjectEqualsNode;
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import org.junit.Test;
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import java.util.HashMap;
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public class HashMapGetTest extends GraalCompilerTest {
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    public static void mapGet(HashMap<Integer, Integer> map, Integer key) {
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        map.get(key);
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    }
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    @Test
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    public void hashMapTest() {
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        HashMap<Integer, Integer> map = new HashMap<>();
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        ResolvedJavaMethod get = getResolvedJavaMethod(HashMapGetTest.class, "mapGet");
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        for (int i = 0; i < 5000; i++) {
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            mapGet(map, i);
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            map.put(i, i);
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            mapGet(map, i);
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        }
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        test(get, null, map, 0);
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        for (IfNode ifNode : lastCompiledGraph.getNodes(IfNode.TYPE)) {
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            LogicNode condition = ifNode.condition();
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            if (ifNode.getTrueSuccessorProbability() < 0.4 && condition instanceof ObjectEqualsNode) {
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                assertTrue(ifNode.trueSuccessor().next() instanceof ReturnNode, "Expected return but got %s (trueSuccessor: %s)", ifNode.trueSuccessor().next(), ifNode.trueSuccessor());
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            }
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        }
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    }
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}