--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.test/src/org/graalvm/compiler/replacements/test/PEGraphDecoderTest.java 2017-02-15 17:08:53.297527791 -0800 @@ -0,0 +1,156 @@ +/* + * Copyright (c) 2015, 2016, 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.replacements.test; + +import static org.graalvm.compiler.core.common.CompilationIdentifier.INVALID_COMPILATION_ID; +import static org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin.InlineInfo.createStandardInlineInfo; + +import org.junit.Test; + +import org.graalvm.compiler.core.common.LocationIdentity; +import org.graalvm.compiler.core.common.type.StampFactory; +import org.graalvm.compiler.core.test.GraalCompilerTest; +import org.graalvm.compiler.debug.Debug; +import org.graalvm.compiler.nodes.AbstractBeginNode; +import org.graalvm.compiler.nodes.StructuredGraph; +import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions; +import org.graalvm.compiler.nodes.ValueNode; +import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration; +import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext; +import org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin; +import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin; +import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins; +import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins.Registration; +import org.graalvm.compiler.nodes.memory.HeapAccess.BarrierType; +import org.graalvm.compiler.nodes.memory.ReadNode; +import org.graalvm.compiler.nodes.memory.address.AddressNode; +import org.graalvm.compiler.nodes.memory.address.OffsetAddressNode; +import org.graalvm.compiler.phases.OptimisticOptimizations; +import org.graalvm.compiler.phases.common.CanonicalizerPhase; +import org.graalvm.compiler.phases.tiers.PhaseContext; +import org.graalvm.compiler.replacements.CachingPEGraphDecoder; + +import jdk.vm.ci.meta.JavaKind; +import jdk.vm.ci.meta.ResolvedJavaMethod; + +public class PEGraphDecoderTest extends GraalCompilerTest { + + /** + * This method is intrinsified to a node with a guard dependency on the block it is in. The + * various tests ensure that this guard is correctly updated when blocks are merged during + * inlining. + */ + private static native int readInt(Object obj, long offset); + + private static boolean flag; + private static int value; + + private static void invokeSimple() { + value = 111; + } + + private static void invokeComplicated() { + if (flag) { + value = 0; + } else { + value = 42; + } + } + + private static int readInt1(Object obj) { + return readInt(obj, 16); + } + + private static int readInt2(Object obj) { + invokeSimple(); + return readInt(obj, 16); + } + + private static int readInt3(Object obj) { + invokeComplicated(); + return readInt(obj, 16); + } + + private static int readInt4(Object obj, int n) { + if (n > 0) { + invokeComplicated(); + } + return readInt(obj, 16); + } + + public static int doTest(Object obj) { + int result = 0; + result += readInt1(obj); + result += readInt2(obj); + result += readInt3(obj); + result += readInt4(obj, 2); + return result; + } + + private static void registerPlugins(InvocationPlugins plugins) { + Registration r = new Registration(plugins, PEGraphDecoderTest.class); + r.register2("readInt", Object.class, long.class, new InvocationPlugin() { + @Override + public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver unused, ValueNode obj, ValueNode offset) { + AddressNode address = b.add(new OffsetAddressNode(obj, offset)); + ReadNode read = b.addPush(JavaKind.Int, new ReadNode(address, LocationIdentity.any(), StampFactory.forKind(JavaKind.Int), BarrierType.NONE)); + read.setGuard(AbstractBeginNode.prevBegin(read)); + return true; + } + }); + } + + class InlineAll implements InlineInvokePlugin { + @Override + public InlineInfo shouldInlineInvoke(GraphBuilderContext b, ResolvedJavaMethod method, ValueNode[] args) { + return createStandardInlineInfo(method); + } + } + + @Test + @SuppressWarnings("try") + public void test() { + ResolvedJavaMethod testMethod = getResolvedJavaMethod(PEGraphDecoderTest.class, "doTest", Object.class); + StructuredGraph targetGraph = null; + try (Debug.Scope scope = Debug.scope("GraphPETest", testMethod)) { + GraphBuilderConfiguration graphBuilderConfig = GraphBuilderConfiguration.getDefault(getDefaultGraphBuilderPlugins()).withEagerResolving(true); + registerPlugins(graphBuilderConfig.getPlugins().getInvocationPlugins()); + CachingPEGraphDecoder decoder = new CachingPEGraphDecoder(getProviders(), graphBuilderConfig, OptimisticOptimizations.NONE, AllowAssumptions.YES, getTarget().arch); + + targetGraph = new StructuredGraph(testMethod, AllowAssumptions.YES, INVALID_COMPILATION_ID); + decoder.decode(targetGraph, testMethod, null, null, new InlineInvokePlugin[]{new InlineAll()}, null); + Debug.dump(Debug.BASIC_LOG_LEVEL, targetGraph, "Target Graph"); + targetGraph.verify(); + + PhaseContext context = new PhaseContext(getProviders()); + new CanonicalizerPhase().apply(targetGraph, context); + targetGraph.verify(); + + } catch (Throwable ex) { + if (targetGraph != null) { + Debug.dump(Debug.BASIC_LOG_LEVEL, targetGraph, ex.toString()); + } + Debug.handle(ex); + } + } +}