Mercurial > hg > graal-compiler
view graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java @ 15220:ccf0c5a1edf1
Use a synthetic BCI instead of a random BCI (the first parsed bytecode that could throw an exception) for the exception unwind block
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Thu, 17 Apr 2014 15:32:57 -0700 |
parents | d59f48be0ed6 |
children | 58d2c5bdb9cd |
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/* * Copyright (c) 2013, 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 com.oracle.graal.truffle; import static com.oracle.graal.truffle.OptimizedCallTargetLog.*; import static com.oracle.graal.truffle.TruffleCompilerOptions.*; import java.io.*; import java.util.*; import java.util.concurrent.atomic.*; import com.oracle.graal.api.code.*; import com.oracle.graal.debug.*; import com.oracle.truffle.api.*; import com.oracle.truffle.api.CompilerDirectives.CompilationFinal; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.nodes.*; /** * Call target that is optimized by Graal upon surpassing a specific invocation threshold. */ public class OptimizedCallTarget extends InstalledCode implements RootCallTarget, LoopCountReceiver, ReplaceObserver { protected static final PrintStream OUT = TTY.out().out(); protected final GraalTruffleRuntime runtime; private SpeculationLog speculationLog; protected int callCount; protected boolean inliningPerformed; protected final CompilationProfile compilationProfile; protected final CompilationPolicy compilationPolicy; private OptimizedCallTarget splitSource; private final AtomicInteger callSitesKnown = new AtomicInteger(0); @CompilationFinal private Class<?> profiledReturnType; @CompilationFinal private Assumption profiledReturnTypeAssumption; private final RootNode rootNode; public final RootNode getRootNode() { return rootNode; } public Class<?> getProfiledReturnType() { Class<?> result = profiledReturnType; if (result != null) { try { profiledReturnTypeAssumption.check(); } catch (InvalidAssumptionException e) { } } return result; } public OptimizedCallTarget(RootNode rootNode, GraalTruffleRuntime runtime, int invokeCounter, int compilationThreshold, CompilationPolicy compilationPolicy, SpeculationLog speculationLog) { this.runtime = runtime; this.speculationLog = speculationLog; this.rootNode = rootNode; this.rootNode.adoptChildren(); this.rootNode.setCallTarget(this); this.compilationPolicy = compilationPolicy; this.compilationProfile = new CompilationProfile(compilationThreshold, invokeCounter); if (TruffleCallTargetProfiling.getValue()) { registerCallTarget(this); } } public SpeculationLog getSpeculationLog() { return speculationLog; } @Override public Object call(Object... args) { return callBoundary(args); } @TruffleCallBoundary private Object callBoundary(Object[] args) { if (CompilerDirectives.inInterpreter()) { // We are called and we are still in Truffle interpreter mode. CompilerDirectives.transferToInterpreter(); interpreterCall(); } else { // We come here from compiled code (i.e., we have been inlined). } return callRoot(args); } @Override public void invalidate() { this.runtime.invalidateInstalledCode(this); } protected void invalidate(Node oldNode, Node newNode, CharSequence reason) { if (isValid()) { CompilerAsserts.neverPartOfCompilation(); invalidate(); compilationProfile.reportInvalidated(); logOptimizedInvalidated(this, oldNode, newNode, reason); } cancelInstalledTask(oldNode, newNode, reason); } private void cancelInstalledTask(Node oldNode, Node newNode, CharSequence reason) { if (this.runtime.cancelInstalledTask(this)) { logOptimizingUnqueued(this, oldNode, newNode, reason); compilationProfile.reportInvalidated(); } } private void interpreterCall() { CompilerAsserts.neverPartOfCompilation(); compilationProfile.reportInterpreterCall(); if (TruffleCallTargetProfiling.getValue()) { callCount++; } if (compilationPolicy.shouldCompile(compilationProfile)) { compile(); } } public void compile() { if (!runtime.isCompiling(this)) { performInlining(); logOptimizingQueued(this); runtime.compile(this, TruffleBackgroundCompilation.getValue()); } } public void compilationFinished(Throwable t) { if (t == null) { // Compilation was successful. } else { compilationPolicy.recordCompilationFailure(t); logOptimizingFailed(this, t.getMessage()); if (t instanceof BailoutException) { // Bailout => move on. } else { if (TruffleCompilationExceptionsAreFatal.getValue()) { t.printStackTrace(OUT); System.exit(-1); } } } } protected final Object callProxy(VirtualFrame frame) { try { return getRootNode().execute(frame); } finally { // this assertion is needed to keep the values from being cleared as non-live locals assert frame != null && this != null; } } public final int getKnownCallSiteCount() { return callSitesKnown.get(); } public final void incrementKnownCallSites() { callSitesKnown.incrementAndGet(); } public final void decrementKnownCallSites() { callSitesKnown.decrementAndGet(); } public final OptimizedCallTarget getSplitSource() { return splitSource; } public final void setSplitSource(OptimizedCallTarget splitSource) { this.splitSource = splitSource; } @Override public String toString() { String superString = rootNode.toString(); if (isValid()) { superString += " <compiled>"; } if (splitSource != null) { superString += " <split>"; } return superString; } public CompilationProfile getCompilationProfile() { return compilationProfile; } public final Object callInlined(Object[] arguments) { if (CompilerDirectives.inInterpreter()) { compilationProfile.reportInlinedCall(); } VirtualFrame frame = createFrame(getRootNode().getFrameDescriptor(), arguments); return callProxy(frame); } public final void performInlining() { if (!TruffleFunctionInlining.getValue()) { return; } if (inliningPerformed) { return; } TruffleInliningHandler handler = new TruffleInliningHandler(new DefaultInliningPolicy()); TruffleInliningResult result = handler.decideInlining(this, 0); performInlining(result); logInliningDecision(result); } private void performInlining(TruffleInliningResult result) { if (inliningPerformed) { return; } inliningPerformed = true; for (TruffleInliningProfile profile : result) { profile.getCallNode().inline(); TruffleInliningResult recursiveResult = profile.getRecursiveResult(); if (recursiveResult != null) { recursiveResult.getCallTarget().performInlining(recursiveResult); } } } public final Object callRoot(Object[] args) { VirtualFrame frame = createFrame(getRootNode().getFrameDescriptor(), args); Object result = callProxy(frame); // Profile call return type if (profiledReturnTypeAssumption == null) { CompilerDirectives.transferToInterpreter(); profiledReturnType = result.getClass(); profiledReturnTypeAssumption = Truffle.getRuntime().createAssumption("Profiled Return Type"); } else if (profiledReturnType != null) { if (result == null || profiledReturnType != result.getClass()) { CompilerDirectives.transferToInterpreter(); profiledReturnType = null; profiledReturnTypeAssumption.invalidate(); } } return result; } public static FrameWithoutBoxing createFrame(FrameDescriptor descriptor, Object[] args) { return new FrameWithoutBoxing(descriptor, args); } @Override public void reportLoopCount(int count) { compilationProfile.reportLoopCount(count); } @Override public void nodeReplaced(Node oldNode, Node newNode, CharSequence reason) { compilationProfile.reportNodeReplaced(); invalidate(oldNode, newNode, reason); } public Map<String, Object> getDebugProperties() { Map<String, Object> properties = new LinkedHashMap<>(); addASTSizeProperty(this, properties); properties.putAll(getCompilationProfile().getDebugProperties()); return properties; } }