Mercurial > hg > graal-compiler
view graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiProfilingInfo.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 | 9e8e92c3ff17 |
children | a0cca63cd366 |
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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.cri.ri; /** * Represents profiling information for one specific method. * Every accessor method returns the information that is available at the time of its invocation. * If a method is invoked multiple times, it may return a significantly different results for every invocation. */ public interface RiProfilingInfo { /** * Returns an estimate of how often the branch at the given byte code was taken. * @return The estimated probability, with 0.0 meaning never and 1.0 meaning always, or -1 if this information is not available. */ double getBranchTakenProbability(int bci); /** * Returns an estimate of how often the switch cases are taken at the given BCI. * The default case is stored as the last entry. * @return A double value that contains the estimated probabilities, with 0.0 meaning never and 1.0 meaning always, * or -1 if this information is not available. */ double[] getSwitchProbabilities(int bci); /** * Returns the TypeProfile for the given BCI. * @return Returns an RiTypeProfile object, or null if not available. */ RiTypeProfile getTypeProfile(int bci); /** * Returns true if the instruction at least once an exception was thrown at the given BCI. * @return true if an exception was encountered during profiling, false otherwise. */ boolean getExceptionSeen(int bci); /** * Returns an estimate how often the current BCI was executed. Avoid comparing execution counts to each other, * as the returned value highly depends on the time of invocation. * @return the estimated execution count or -1 if not available. */ int getExecutionCount(int bci); }