Mercurial > hg > graal-compiler
diff graal/com.oracle.max.graal.hotspot/src/com/oracle/max/graal/hotspot/ri/HOTSPOTPROFILINGINFO.JAVA @ 4446:48756b901156
bugfixes
author | Christian Haeubl <christian.haeubl@oracle.com> |
---|---|
date | Tue, 24 Jan 2012 13:25:16 -0800 |
parents | |
children | 00a04b57a046 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.max.graal.hotspot/src/com/oracle/max/graal/hotspot/ri/HOTSPOTPROFILINGINFO.JAVA Tue Jan 24 13:25:16 2012 -0800 @@ -0,0 +1,132 @@ +/* + * Copyright (c) 2012, 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.max.graal.hotspot.ri; + +import com.oracle.max.cri.ri.*; +import com.oracle.max.graal.hotspot.*; +import com.oracle.max.graal.hotspot.Compiler; + + +public final class HotSpotProfilingInfo extends CompilerObject implements RiProfilingInfo { + + /** + * + */ + private static final long serialVersionUID = -8307682725047864875L; + + private int position; + private int hintPosition; + private int hintBCI; + private HotSpotMethodDataAccessor dataAccessor; + private HotSpotMethodData methodData; + + public HotSpotProfilingInfo(Compiler compiler, HotSpotMethodData methodData) { + super(compiler); + this.methodData = methodData; + hintPosition = 0; + hintBCI = -1; + } + + @Override + public RiTypeProfile getTypeProfile(int bci) { + findBCI(bci); + return dataAccessor.getTypeProfile(methodData, position); + } + + @Override + public double getBranchTakenProbability(int bci) { + findBCI(bci); + return dataAccessor.getBranchTakenProbability(methodData, position); + } + + @Override + public double[] getSwitchProbabilities(int bci) { + findBCI(bci); + return dataAccessor.getSwitchProbabilities(methodData, position); + } + + @Override + public boolean getImplicitExceptionSeen(int bci) { + findBCI(bci); + return dataAccessor.getImplicitExceptionSeen(methodData, position); + } + + @Override + public int getExecutionCount(int bci) { + findBCI(bci); + return dataAccessor.getExecutionCount(methodData, position); + } + + private void findBCI(int targetBCI) { + assert targetBCI >= 0 : "invalid BCI"; + + if (methodData.hasNormalData()) { + int currentPosition = targetBCI < hintBCI ? 0 : hintPosition; + HotSpotMethodDataAccessor currentAccessor; + while ((currentAccessor = methodData.getNormalData(currentPosition)) != null) { + int currentBCI = currentAccessor.getBCI(methodData, currentPosition); + if (currentBCI == targetBCI) { + normalDataFound(currentAccessor, currentPosition, currentBCI); + return; + } else if (currentBCI > targetBCI) { + break; + } + currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition); + } + } + + if (methodData.hasExtraData()) { + int currentPosition = 0; + HotSpotMethodDataAccessor currentAccessor; + while ((currentAccessor = methodData.getExtraData(currentPosition)) != null) { + int currentBCI = currentAccessor.getBCI(methodData, currentPosition); + if (currentBCI == targetBCI) { + extraDataFound(currentAccessor, currentPosition); + return; + } + currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition); + } + } + + noDataFound(); + } + + private void normalDataFound(HotSpotMethodDataAccessor data, int pos, int bci) { + setCurrentData(data, pos); + this.hintPosition = position; + this.hintBCI = bci; + } + + private void extraDataFound(HotSpotMethodDataAccessor data, int pos) { + setCurrentData(data, pos); + } + + private void noDataFound() { + setCurrentData(HotSpotMethodData.getNoDataAccessor(), -1); + } + + private void setCurrentData(HotSpotMethodDataAccessor dataAccessor, int position) { + this.dataAccessor = dataAccessor; + this.position = position; + } +}