Mercurial > hg > graal-jvmci-8
view graal/com.oracle.max.graal.hotspot/src/com/oracle/max/graal/hotspot/ri/HotSpotProfilingInfo.java @ 4457:5acf4a974e4a
fixed framestate for inlining multiple methods
author | Christian Haeubl <christian.haeubl@oracle.com> |
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date | Tue, 31 Jan 2012 17:09:11 -0800 |
parents | d585b608bd78 |
children | 00efac2934d3 |
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/* * 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, false); return dataAccessor.getTypeProfile(methodData, position); } @Override public double getBranchTakenProbability(int bci) { findBCI(bci, false); return dataAccessor.getBranchTakenProbability(methodData, position); } @Override public double[] getSwitchProbabilities(int bci) { findBCI(bci, false); return dataAccessor.getSwitchProbabilities(methodData, position); } @Override public boolean getExceptionSeen(int bci) { findBCI(bci, true); return dataAccessor.getExceptionSeen(methodData, position); } @Override public int getExecutionCount(int bci) { findBCI(bci, false); return dataAccessor.getExecutionCount(methodData, position); } private void findBCI(int targetBCI, boolean searchExtraData) { 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 (searchExtraData && 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.getNoMethodData(), -1); } private void setCurrentData(HotSpotMethodDataAccessor dataAccessor, int position) { this.dataAccessor = dataAccessor; this.position = position; } }