--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/HotSpotGraalCompiler.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,316 @@
+/*
+ * 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.hotspot;
+
+import static org.graalvm.compiler.core.common.GraalOptions.OptAssumptions;
+import static org.graalvm.compiler.nodes.graphbuilderconf.IntrinsicContext.CompilationContext.ROOT_COMPILATION;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import java.util.Collections;
+import java.util.Formattable;
+import java.util.Formatter;
+import java.util.List;
+
+import org.graalvm.compiler.api.runtime.GraalJVMCICompiler;
+import org.graalvm.compiler.bytecode.Bytecode;
+import org.graalvm.compiler.code.CompilationResult;
+import org.graalvm.compiler.core.GraalCompiler;
+import org.graalvm.compiler.core.common.CompilationIdentifier;
+import org.graalvm.compiler.core.common.util.CompilationAlarm;
+import org.graalvm.compiler.debug.DebugHandlersFactory;
+import org.graalvm.compiler.debug.DebugContext;
+import org.graalvm.compiler.debug.DebugContext.Activation;
+import org.graalvm.compiler.debug.DebugOptions;
+import org.graalvm.compiler.hotspot.CompilationCounters.Options;
+import org.graalvm.compiler.hotspot.meta.HotSpotProviders;
+import org.graalvm.compiler.hotspot.phases.OnStackReplacementPhase;
+import org.graalvm.compiler.java.GraphBuilderPhase;
+import org.graalvm.compiler.lir.asm.CompilationResultBuilderFactory;
+import org.graalvm.compiler.lir.phases.LIRSuites;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
+import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration;
+import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration.Plugins;
+import org.graalvm.compiler.nodes.graphbuilderconf.IntrinsicContext;
+import org.graalvm.compiler.nodes.spi.Replacements;
+import org.graalvm.compiler.options.OptionValues;
+import org.graalvm.compiler.phases.OptimisticOptimizations;
+import org.graalvm.compiler.phases.OptimisticOptimizations.Optimization;
+import org.graalvm.compiler.phases.PhaseSuite;
+import org.graalvm.compiler.phases.tiers.HighTierContext;
+import org.graalvm.compiler.phases.tiers.Suites;
+import org.graalvm.compiler.printer.GraalDebugHandlersFactory;
+
+import jdk.vm.ci.code.CompilationRequest;
+import jdk.vm.ci.code.CompilationRequestResult;
+import jdk.vm.ci.hotspot.HotSpotCompilationRequest;
+import jdk.vm.ci.hotspot.HotSpotCompilationRequestResult;
+import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider;
+import jdk.vm.ci.meta.DefaultProfilingInfo;
+import jdk.vm.ci.meta.JavaMethod;
+import jdk.vm.ci.meta.ProfilingInfo;
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+import jdk.vm.ci.meta.SpeculationLog;
+import jdk.vm.ci.meta.TriState;
+import jdk.vm.ci.runtime.JVMCICompiler;
+
+public class HotSpotGraalCompiler implements GraalJVMCICompiler {
+
+ private final HotSpotJVMCIRuntimeProvider jvmciRuntime;
+ private final HotSpotGraalRuntimeProvider graalRuntime;
+ private final CompilationCounters compilationCounters;
+ private final BootstrapWatchDog bootstrapWatchDog;
+ private List<DebugHandlersFactory> factories;
+
+ HotSpotGraalCompiler(HotSpotJVMCIRuntimeProvider jvmciRuntime, HotSpotGraalRuntimeProvider graalRuntime, OptionValues options) {
+ this.jvmciRuntime = jvmciRuntime;
+ this.graalRuntime = graalRuntime;
+ // It is sufficient to have one compilation counter object per Graal compiler object.
+ this.compilationCounters = Options.CompilationCountLimit.getValue(options) > 0 ? new CompilationCounters(options) : null;
+ this.bootstrapWatchDog = graalRuntime.isBootstrapping() && !DebugOptions.BootstrapInitializeOnly.getValue(options) ? BootstrapWatchDog.maybeCreate(graalRuntime) : null;
+ }
+
+ public List<DebugHandlersFactory> getDebugHandlersFactories() {
+ if (factories == null) {
+ factories = Collections.singletonList(new GraalDebugHandlersFactory(graalRuntime.getHostProviders().getSnippetReflection()));
+ }
+ return factories;
+ }
+
+ @Override
+ public HotSpotGraalRuntimeProvider getGraalRuntime() {
+ return graalRuntime;
+ }
+
+ @Override
+ public CompilationRequestResult compileMethod(CompilationRequest request) {
+ return compileMethod(request, true);
+ }
+
+ @SuppressWarnings("try")
+ CompilationRequestResult compileMethod(CompilationRequest request, boolean installAsDefault) {
+ if (graalRuntime.isShutdown()) {
+ return HotSpotCompilationRequestResult.failure(String.format("Shutdown entered"), false);
+ }
+
+ ResolvedJavaMethod method = request.getMethod();
+ OptionValues options = graalRuntime.getOptions(method);
+
+ if (graalRuntime.isBootstrapping()) {
+ if (DebugOptions.BootstrapInitializeOnly.getValue(options)) {
+ return HotSpotCompilationRequestResult.failure(String.format("Skip compilation because %s is enabled", DebugOptions.BootstrapInitializeOnly.getName()), true);
+ }
+ if (bootstrapWatchDog != null) {
+ if (bootstrapWatchDog.hitCriticalCompilationRateOrTimeout()) {
+ // Drain the compilation queue to expedite completion of the bootstrap
+ return HotSpotCompilationRequestResult.failure("hit critical bootstrap compilation rate or timeout", true);
+ }
+ }
+ }
+ HotSpotCompilationRequest hsRequest = (HotSpotCompilationRequest) request;
+ try (CompilationWatchDog w1 = CompilationWatchDog.watch(method, hsRequest.getId(), options);
+ BootstrapWatchDog.Watch w2 = bootstrapWatchDog == null ? null : bootstrapWatchDog.watch(request);
+ CompilationAlarm alarm = CompilationAlarm.trackCompilationPeriod(options);) {
+ if (compilationCounters != null) {
+ compilationCounters.countCompilation(method);
+ }
+ CompilationTask task = new CompilationTask(jvmciRuntime, this, hsRequest, true, installAsDefault, options);
+ CompilationRequestResult r = null;
+ try (DebugContext debug = graalRuntime.openDebugContext(options, task.getCompilationIdentifier(), method, getDebugHandlersFactories());
+ Activation a = debug.activate()) {
+ r = task.runCompilation(debug);
+ }
+ assert r != null;
+ return r;
+ }
+ }
+
+ public StructuredGraph createGraph(ResolvedJavaMethod method, int entryBCI, boolean useProfilingInfo, CompilationIdentifier compilationId, OptionValues options, DebugContext debug) {
+ HotSpotBackend backend = graalRuntime.getHostBackend();
+ HotSpotProviders providers = backend.getProviders();
+ final boolean isOSR = entryBCI != JVMCICompiler.INVOCATION_ENTRY_BCI;
+ StructuredGraph graph = method.isNative() || isOSR ? null : getIntrinsicGraph(method, providers, compilationId, options, debug);
+
+ if (graph == null) {
+ SpeculationLog speculationLog = method.getSpeculationLog();
+ if (speculationLog != null) {
+ speculationLog.collectFailedSpeculations();
+ }
+ graph = new StructuredGraph.Builder(options, debug, AllowAssumptions.ifTrue(OptAssumptions.getValue(options))).method(method).entryBCI(entryBCI).speculationLog(
+ speculationLog).useProfilingInfo(useProfilingInfo).compilationId(compilationId).build();
+ }
+ return graph;
+ }
+
+ public CompilationResult compileHelper(CompilationResultBuilderFactory crbf, CompilationResult result, StructuredGraph graph, ResolvedJavaMethod method, int entryBCI, boolean useProfilingInfo,
+ OptionValues options) {
+
+ HotSpotBackend backend = graalRuntime.getHostBackend();
+ HotSpotProviders providers = backend.getProviders();
+ final boolean isOSR = entryBCI != JVMCICompiler.INVOCATION_ENTRY_BCI;
+
+ Suites suites = getSuites(providers, options);
+ LIRSuites lirSuites = getLIRSuites(providers, options);
+ ProfilingInfo profilingInfo = useProfilingInfo ? method.getProfilingInfo(!isOSR, isOSR) : DefaultProfilingInfo.get(TriState.FALSE);
+ OptimisticOptimizations optimisticOpts = getOptimisticOpts(profilingInfo, options);
+
+ /*
+ * Cut off never executed code profiles if there is code, e.g. after the osr loop, that is
+ * never executed.
+ */
+ if (isOSR && !OnStackReplacementPhase.Options.DeoptAfterOSR.getValue(options)) {
+ optimisticOpts.remove(Optimization.RemoveNeverExecutedCode);
+ }
+
+ result.setEntryBCI(entryBCI);
+ boolean shouldDebugNonSafepoints = providers.getCodeCache().shouldDebugNonSafepoints();
+ PhaseSuite<HighTierContext> graphBuilderSuite = configGraphBuilderSuite(providers.getSuites().getDefaultGraphBuilderSuite(), shouldDebugNonSafepoints, isOSR);
+ GraalCompiler.compileGraph(graph, method, providers, backend, graphBuilderSuite, optimisticOpts, profilingInfo, suites, lirSuites, result, crbf);
+
+ if (!isOSR && useProfilingInfo) {
+ ProfilingInfo profile = profilingInfo;
+ profile.setCompilerIRSize(StructuredGraph.class, graph.getNodeCount());
+ }
+
+ return result;
+ }
+
+ public CompilationResult compile(ResolvedJavaMethod method, int entryBCI, boolean useProfilingInfo, CompilationIdentifier compilationId, OptionValues options, DebugContext debug) {
+ StructuredGraph graph = createGraph(method, entryBCI, useProfilingInfo, compilationId, options, debug);
+ CompilationResult result = new CompilationResult(compilationId);
+ return compileHelper(CompilationResultBuilderFactory.Default, result, graph, method, entryBCI, useProfilingInfo, options);
+ }
+
+ /**
+ * Gets a graph produced from the intrinsic for a given method that can be compiled and
+ * installed for the method.
+ *
+ * @param method
+ * @param compilationId
+ * @param options
+ * @param debug
+ * @return an intrinsic graph that can be compiled and installed for {@code method} or null
+ */
+ @SuppressWarnings("try")
+ public StructuredGraph getIntrinsicGraph(ResolvedJavaMethod method, HotSpotProviders providers, CompilationIdentifier compilationId, OptionValues options, DebugContext debug) {
+ Replacements replacements = providers.getReplacements();
+ Bytecode subst = replacements.getSubstitutionBytecode(method);
+ if (subst != null) {
+ ResolvedJavaMethod substMethod = subst.getMethod();
+ assert !substMethod.equals(method);
+ StructuredGraph graph = new StructuredGraph.Builder(options, debug, AllowAssumptions.YES).method(substMethod).compilationId(compilationId).build();
+ try (DebugContext.Scope scope = debug.scope("GetIntrinsicGraph", graph)) {
+ Plugins plugins = new Plugins(providers.getGraphBuilderPlugins());
+ GraphBuilderConfiguration config = GraphBuilderConfiguration.getSnippetDefault(plugins);
+ IntrinsicContext initialReplacementContext = new IntrinsicContext(method, substMethod, subst.getOrigin(), ROOT_COMPILATION);
+ new GraphBuilderPhase.Instance(providers.getMetaAccess(), providers.getStampProvider(), providers.getConstantReflection(), providers.getConstantFieldProvider(), config,
+ OptimisticOptimizations.NONE, initialReplacementContext).apply(graph);
+ assert !graph.isFrozen();
+ return graph;
+ } catch (Throwable e) {
+ debug.handle(e);
+ }
+ }
+ return null;
+ }
+
+ protected OptimisticOptimizations getOptimisticOpts(ProfilingInfo profilingInfo, OptionValues options) {
+ return new OptimisticOptimizations(profilingInfo, options);
+ }
+
+ protected Suites getSuites(HotSpotProviders providers, OptionValues options) {
+ return providers.getSuites().getDefaultSuites(options);
+ }
+
+ protected LIRSuites getLIRSuites(HotSpotProviders providers, OptionValues options) {
+ return providers.getSuites().getDefaultLIRSuites(options);
+ }
+
+ /**
+ * Reconfigures a given graph builder suite (GBS) if one of the given GBS parameter values is
+ * not the default.
+ *
+ * @param suite the graph builder suite
+ * @param shouldDebugNonSafepoints specifies if extra debug info should be generated (default is
+ * false)
+ * @param isOSR specifies if extra OSR-specific post-processing is required (default is false)
+ * @return a new suite derived from {@code suite} if any of the GBS parameters did not have a
+ * default value otherwise {@code suite}
+ */
+ protected PhaseSuite<HighTierContext> configGraphBuilderSuite(PhaseSuite<HighTierContext> suite, boolean shouldDebugNonSafepoints, boolean isOSR) {
+ if (shouldDebugNonSafepoints || isOSR) {
+ PhaseSuite<HighTierContext> newGbs = suite.copy();
+
+ if (shouldDebugNonSafepoints) {
+ GraphBuilderPhase graphBuilderPhase = (GraphBuilderPhase) newGbs.findPhase(GraphBuilderPhase.class).previous();
+ GraphBuilderConfiguration graphBuilderConfig = graphBuilderPhase.getGraphBuilderConfig();
+ graphBuilderConfig = graphBuilderConfig.withNodeSourcePosition(true);
+ GraphBuilderPhase newGraphBuilderPhase = new GraphBuilderPhase(graphBuilderConfig);
+ newGbs.findPhase(GraphBuilderPhase.class).set(newGraphBuilderPhase);
+ }
+ if (isOSR) {
+ // We must not clear non liveness for OSR compilations.
+ GraphBuilderPhase graphBuilderPhase = (GraphBuilderPhase) newGbs.findPhase(GraphBuilderPhase.class).previous();
+ GraphBuilderConfiguration graphBuilderConfig = graphBuilderPhase.getGraphBuilderConfig();
+ GraphBuilderPhase newGraphBuilderPhase = new GraphBuilderPhase(graphBuilderConfig);
+ newGbs.findPhase(GraphBuilderPhase.class).set(newGraphBuilderPhase);
+ newGbs.appendPhase(new OnStackReplacementPhase());
+ }
+ return newGbs;
+ }
+ return suite;
+ }
+
+ /**
+ * Converts {@code method} to a String with {@link JavaMethod#format(String)} and the format
+ * string {@code "%H.%n(%p)"}.
+ */
+ static String str(JavaMethod method) {
+ return method.format("%H.%n(%p)");
+ }
+
+ /**
+ * Wraps {@code obj} in a {@link Formatter} that standardizes formatting for certain objects.
+ */
+ static Formattable fmt(Object obj) {
+ return new Formattable() {
+ @Override
+ public void formatTo(Formatter buf, int flags, int width, int precision) {
+ if (obj instanceof Throwable) {
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
+ ((Throwable) obj).printStackTrace(new PrintStream(baos));
+ buf.format("%s", baos.toString());
+ } else if (obj instanceof StackTraceElement[]) {
+ for (StackTraceElement e : (StackTraceElement[]) obj) {
+ buf.format("\t%s%n", e);
+ }
+ } else if (obj instanceof JavaMethod) {
+ buf.format("%s", str((JavaMethod) obj));
+ } else {
+ buf.format("%s", obj);
+ }
+ }
+ };
+ }
+}