| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| package org.graalvm.compiler.hotspot.test; |
| |
| import org.graalvm.compiler.core.common.GraalOptions; |
| import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
| import org.graalvm.compiler.hotspot.meta.HotSpotClassInitializationPlugin; |
| import org.graalvm.compiler.hotspot.nodes.aot.InitializeKlassNode; |
| import org.graalvm.compiler.hotspot.nodes.aot.LoadConstantIndirectlyNode; |
| import org.graalvm.compiler.hotspot.nodes.aot.ResolveConstantNode; |
| import org.graalvm.compiler.hotspot.phases.LoadJavaMirrorWithKlassPhase; |
| import org.graalvm.compiler.hotspot.phases.aot.EliminateRedundantInitializationPhase; |
| import org.graalvm.compiler.hotspot.phases.aot.ReplaceConstantNodesPhase; |
| import org.graalvm.compiler.nodes.StructuredGraph; |
| import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions; |
| import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration.Plugins; |
| import org.graalvm.compiler.nodes.spi.LoweringTool; |
| import org.graalvm.compiler.options.OptionValues; |
| import org.graalvm.compiler.phases.common.CanonicalizerPhase; |
| import org.graalvm.compiler.phases.common.LoweringPhase; |
| import org.graalvm.compiler.phases.tiers.HighTierContext; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class ReplaceConstantNodesPhaseTest extends HotSpotGraalCompilerTest { |
| private final GraalHotSpotVMConfig config = runtime().getVMConfig(); |
| |
| @Override |
| protected Plugins getDefaultGraphBuilderPlugins() { |
| Plugins plugins = super.getDefaultGraphBuilderPlugins(); |
| plugins.setClassInitializationPlugin(new HotSpotClassInitializationPlugin()); |
| return plugins; |
| } |
| |
| public static class X { |
| public static int x; |
| public static int y; |
| public static int z; |
| public static Object o; |
| } |
| |
| public static class Y extends X { |
| public static int a; |
| public static int b; |
| } |
| |
| public static int a; |
| |
| public static void assignFields() { |
| X.x = 1; |
| X.y = 2; |
| X.z = 3; |
| } |
| |
| public static void assignFieldsInBranches(boolean x) { |
| if (x) { |
| X.y = 1; |
| } else { |
| X.z = 2; |
| } |
| } |
| |
| public static void assignFieldsWithDominatingInit(boolean x) { |
| X.x = 1; |
| if (x) { |
| X.y = 2; |
| } else { |
| X.z = 3; |
| } |
| } |
| |
| public static void assignString() { |
| X.o = "foo"; |
| } |
| |
| public static void assignToParentAndChild() { |
| Y.a = 1; |
| X.x = 2; |
| } |
| |
| public static void assignToThis() { |
| a = 1; |
| } |
| |
| public static void assignFieldsWithDominatingInitOfParent(boolean x) { |
| Y.a = 1; |
| if (x) { |
| X.y = 2; |
| } else { |
| X.z = 3; |
| } |
| Y.b = 4; |
| } |
| |
| private void test(String name, int expectedInits, int expectedResolves, int expectedLoads) { |
| StructuredGraph graph = parseEager(name, AllowAssumptions.NO, new OptionValues(getInitialOptions(), GraalOptions.GeneratePIC, true)); |
| HighTierContext highTierContext = getDefaultHighTierContext(); |
| CanonicalizerPhase canonicalizer = new CanonicalizerPhase(); |
| new EliminateRedundantInitializationPhase().apply(graph, highTierContext); |
| new LoweringPhase(canonicalizer, LoweringTool.StandardLoweringStage.HIGH_TIER).apply(graph, highTierContext); |
| new LoadJavaMirrorWithKlassPhase(config).apply(graph, highTierContext); |
| new ReplaceConstantNodesPhase(false).apply(graph, highTierContext); |
| Assert.assertEquals(expectedInits, graph.getNodes().filter(InitializeKlassNode.class).count()); |
| Assert.assertEquals(expectedResolves, graph.getNodes().filter(ResolveConstantNode.class).count()); |
| Assert.assertEquals(expectedLoads, graph.getNodes().filter(LoadConstantIndirectlyNode.class).count()); |
| } |
| |
| @Test |
| public void test1() { |
| test("assignFields", 1, 0, 0); |
| } |
| |
| @Test |
| public void test2() { |
| test("assignFieldsWithDominatingInit", 1, 0, 0); |
| } |
| |
| @Test |
| public void test3() { |
| test("assignString", 1, 1, 0); |
| } |
| |
| @Test |
| public void test4() { |
| test("assignToParentAndChild", 1, 1, 0); |
| } |
| |
| @Test |
| public void test5() { |
| test("assignToThis", 0, 0, 1); |
| } |
| |
| @Test |
| public void test6() { |
| test("assignFieldsWithDominatingInitOfParent", 1, 1, 0); |
| } |
| |
| @Test |
| public void test7() { |
| test("assignFieldsInBranches", 2, 1, 0); |
| } |
| } |