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/*
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* Copyright (c) 2015, 2016, 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.replacements.test;
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import static org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin.InlineInfo.createStandardInlineInfo;
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import org.graalvm.compiler.core.common.type.StampFactory;
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import org.graalvm.compiler.core.test.GraalCompilerTest;
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import org.graalvm.compiler.debug.DebugContext;
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import org.graalvm.compiler.nodes.AbstractBeginNode;
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import org.graalvm.compiler.nodes.StructuredGraph;
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import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
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import org.graalvm.compiler.nodes.ValueNode;
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import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration;
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import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext;
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import org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin;
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import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
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import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins;
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import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins.Registration;
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import org.graalvm.compiler.nodes.memory.HeapAccess.BarrierType;
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import org.graalvm.compiler.nodes.memory.ReadNode;
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import org.graalvm.compiler.nodes.memory.address.AddressNode;
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import org.graalvm.compiler.nodes.memory.address.OffsetAddressNode;
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import org.graalvm.compiler.phases.OptimisticOptimizations;
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import org.graalvm.compiler.phases.common.CanonicalizerPhase;
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import org.graalvm.compiler.phases.tiers.PhaseContext;
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import org.graalvm.compiler.replacements.CachingPEGraphDecoder;
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import org.graalvm.word.LocationIdentity;
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import org.junit.Test;
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import jdk.vm.ci.meta.JavaKind;
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import jdk.vm.ci.meta.ResolvedJavaMethod;
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public class PEGraphDecoderTest extends GraalCompilerTest {
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/**
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* This method is intrinsified to a node with a guard dependency on the block it is in. The
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* various tests ensure that this guard is correctly updated when blocks are merged during
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* inlining.
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*/
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private static native int readInt(Object obj, long offset);
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private static boolean flag;
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private static int value;
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private static void invokeSimple() {
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value = 111;
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}
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private static void invokeComplicated() {
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if (flag) {
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value = 0;
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} else {
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value = 42;
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}
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}
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private static int readInt1(Object obj) {
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return readInt(obj, 16);
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}
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private static int readInt2(Object obj) {
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invokeSimple();
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return readInt(obj, 16);
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}
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private static int readInt3(Object obj) {
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invokeComplicated();
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return readInt(obj, 16);
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}
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private static int readInt4(Object obj, int n) {
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if (n > 0) {
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invokeComplicated();
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}
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return readInt(obj, 16);
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}
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public static int doTest(Object obj) {
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int result = 0;
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result += readInt1(obj);
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result += readInt2(obj);
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result += readInt3(obj);
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result += readInt4(obj, 2);
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return result;
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}
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private static void registerPlugins(InvocationPlugins plugins) {
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Registration r = new Registration(plugins, PEGraphDecoderTest.class);
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r.register2("readInt", Object.class, long.class, new InvocationPlugin() {
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@Override
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public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver unused, ValueNode obj, ValueNode offset) {
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AddressNode address = b.add(new OffsetAddressNode(obj, offset));
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ReadNode read = b.addPush(JavaKind.Int, new ReadNode(address, LocationIdentity.any(), StampFactory.forKind(JavaKind.Int), BarrierType.NONE));
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read.setGuard(AbstractBeginNode.prevBegin(read));
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return true;
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}
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});
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}
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class InlineAll implements InlineInvokePlugin {
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@Override
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public InlineInfo shouldInlineInvoke(GraphBuilderContext b, ResolvedJavaMethod method, ValueNode[] args) {
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return createStandardInlineInfo(method);
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}
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}
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@Test
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@SuppressWarnings("try")
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public void test() {
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ResolvedJavaMethod testMethod = getResolvedJavaMethod(PEGraphDecoderTest.class, "doTest", Object.class);
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StructuredGraph targetGraph = null;
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DebugContext debug = getDebugContext();
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try (DebugContext.Scope scope = debug.scope("GraphPETest", testMethod)) {
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GraphBuilderConfiguration graphBuilderConfig = GraphBuilderConfiguration.getDefault(getDefaultGraphBuilderPlugins()).withEagerResolving(true).withUnresolvedIsError(true);
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registerPlugins(graphBuilderConfig.getPlugins().getInvocationPlugins());
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targetGraph = new StructuredGraph.Builder(getInitialOptions(), debug, AllowAssumptions.YES).method(testMethod).build();
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CachingPEGraphDecoder decoder = new CachingPEGraphDecoder(getTarget().arch, targetGraph, getProviders(), graphBuilderConfig, OptimisticOptimizations.NONE, AllowAssumptions.YES,
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null, null, new InlineInvokePlugin[]{new InlineAll()}, null, null, null, null);
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decoder.decode(testMethod, false);
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debug.dump(DebugContext.BASIC_LEVEL, targetGraph, "Target Graph");
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targetGraph.verify();
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PhaseContext context = new PhaseContext(getProviders());
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new CanonicalizerPhase().apply(targetGraph, context);
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targetGraph.verify();
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} catch (Throwable ex) {
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if (targetGraph != null) {
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debug.dump(DebugContext.BASIC_LEVEL, targetGraph, ex.toString());
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}
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debug.handle(ex);
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}
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}
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}
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