| /* |
| * 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 jdk.vm.ci.hotspot; |
| |
| import jdk.vm.ci.meta.DeoptimizationReason; |
| import jdk.vm.ci.meta.JavaMethodProfile; |
| import jdk.vm.ci.meta.JavaTypeProfile; |
| import jdk.vm.ci.meta.ProfilingInfo; |
| import jdk.vm.ci.meta.TriState; |
| |
| public final class HotSpotProfilingInfo implements ProfilingInfo { |
| |
| private final HotSpotMethodData methodData; |
| private final HotSpotResolvedJavaMethod method; |
| |
| private boolean isMature; |
| private int position; |
| private int hintPosition; |
| private int hintBCI; |
| private HotSpotMethodDataAccessor dataAccessor; |
| |
| private boolean includeNormal; |
| private boolean includeOSR; |
| |
| public HotSpotProfilingInfo(HotSpotMethodData methodData, HotSpotResolvedJavaMethod method, boolean includeNormal, boolean includeOSR) { |
| this.methodData = methodData; |
| this.method = method; |
| this.includeNormal = includeNormal; |
| this.includeOSR = includeOSR; |
| this.isMature = methodData.isProfileMature(); |
| hintPosition = 0; |
| hintBCI = -1; |
| } |
| |
| @Override |
| public int getCodeSize() { |
| return method.getCodeSize(); |
| } |
| |
| public int getDecompileCount() { |
| return methodData.getDecompileCount(); |
| } |
| |
| public int getOverflowRecompileCount() { |
| return methodData.getOverflowRecompileCount(); |
| } |
| |
| public int getOverflowTrapCount() { |
| return methodData.getOverflowTrapCount(); |
| } |
| |
| @Override |
| public JavaTypeProfile getTypeProfile(int bci) { |
| if (!isMature) { |
| return null; |
| } |
| findBCI(bci, false); |
| return dataAccessor.getTypeProfile(methodData, position); |
| } |
| |
| @Override |
| public JavaMethodProfile getMethodProfile(int bci) { |
| if (!isMature) { |
| return null; |
| } |
| findBCI(bci, false); |
| return dataAccessor.getMethodProfile(methodData, position); |
| } |
| |
| @Override |
| public double getBranchTakenProbability(int bci) { |
| if (!isMature) { |
| return -1; |
| } |
| findBCI(bci, false); |
| return dataAccessor.getBranchTakenProbability(methodData, position); |
| } |
| |
| @Override |
| public double[] getSwitchProbabilities(int bci) { |
| if (!isMature) { |
| return null; |
| } |
| findBCI(bci, false); |
| return dataAccessor.getSwitchProbabilities(methodData, position); |
| } |
| |
| @Override |
| public TriState getExceptionSeen(int bci) { |
| findBCI(bci, true); |
| return dataAccessor.getExceptionSeen(methodData, position); |
| } |
| |
| @Override |
| public TriState getNullSeen(int bci) { |
| findBCI(bci, false); |
| return dataAccessor.getNullSeen(methodData, position); |
| } |
| |
| @Override |
| public int getExecutionCount(int bci) { |
| if (!isMature) { |
| return -1; |
| } |
| findBCI(bci, false); |
| return dataAccessor.getExecutionCount(methodData, position); |
| } |
| |
| @Override |
| public int getDeoptimizationCount(DeoptimizationReason reason) { |
| int count = 0; |
| if (includeNormal) { |
| count += methodData.getDeoptimizationCount(reason); |
| } |
| if (includeOSR) { |
| count += methodData.getOSRDeoptimizationCount(reason); |
| } |
| return count; |
| } |
| |
| 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); |
| } |
| } |
| |
| boolean exceptionPossiblyNotRecorded = false; |
| if (searchExtraData && methodData.hasExtraData()) { |
| int currentPosition = methodData.getExtraDataBeginOffset(); |
| 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); |
| } |
| |
| if (!methodData.isWithin(currentPosition)) { |
| exceptionPossiblyNotRecorded = true; |
| } |
| } |
| |
| noDataFound(exceptionPossiblyNotRecorded); |
| } |
| |
| 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(boolean exceptionPossiblyNotRecorded) { |
| HotSpotMethodDataAccessor accessor = HotSpotMethodData.getNoDataAccessor(exceptionPossiblyNotRecorded); |
| setCurrentData(accessor, -1); |
| } |
| |
| private void setCurrentData(HotSpotMethodDataAccessor dataAccessor, int position) { |
| this.dataAccessor = dataAccessor; |
| this.position = position; |
| } |
| |
| @Override |
| public boolean isMature() { |
| return isMature; |
| } |
| |
| public void ignoreMature() { |
| isMature = true; |
| } |
| |
| @Override |
| public String toString() { |
| return "HotSpotProfilingInfo<" + this.toString(null, "; ") + ">"; |
| } |
| |
| @Override |
| public void setMature() { |
| isMature = true; |
| } |
| |
| /** |
| * {@code MethodData::_jvmci_ir_size} (currently) supports at most one JVMCI compiler IR type |
| * which will be determined by the first JVMCI compiler that calls |
| * {@link #setCompilerIRSize(Class, int)}. |
| */ |
| private static volatile Class<?> supportedCompilerIRType; |
| |
| @Override |
| public boolean setCompilerIRSize(Class<?> irType, int size) { |
| if (supportedCompilerIRType == null) { |
| synchronized (HotSpotProfilingInfo.class) { |
| if (supportedCompilerIRType == null) { |
| supportedCompilerIRType = irType; |
| } |
| } |
| } |
| if (supportedCompilerIRType != irType) { |
| return false; |
| } |
| methodData.setCompiledIRSize(size); |
| return true; |
| } |
| |
| @Override |
| public int getCompilerIRSize(Class<?> irType) { |
| if (irType == supportedCompilerIRType) { |
| return methodData.getCompiledIRSize(); |
| } |
| return -1; |
| } |
| } |