Mercurial > hg > graal-compiler
view graal/com.oracle.max.criutils/src/com/oracle/max/criutils/BaseProfilingInfo.java @ 5466:af07e798947d
lifted fast subtype check into checkcast snippets
introduced ExplodeLoopNode for use in snippets to denote a loop that must be completely unrolled
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 01 Jun 2012 11:10:49 +0200 |
parents | 4c3d953f8131 |
children | 56860d3f9f39 |
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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.criutils; import com.oracle.max.cri.ci.*; import com.oracle.max.cri.ri.*; /** * Dummy profiling information in case that a method was not executed frequently enough so that * no profiling information does exist yet, or in case that the profiling information should not be used. */ public final class BaseProfilingInfo implements RiProfilingInfo { private static final RiProfilingInfo[] NO_PROFILING_INFO = new RiProfilingInfo[] { new BaseProfilingInfo(RiExceptionSeen.TRUE), new BaseProfilingInfo(RiExceptionSeen.FALSE), new BaseProfilingInfo(RiExceptionSeen.NOT_SUPPORTED) }; private final RiExceptionSeen exceptionSeen; BaseProfilingInfo(RiExceptionSeen exceptionSeen) { this.exceptionSeen = exceptionSeen; } @Override public int codeSize() { return 0; } @Override public RiTypeProfile getTypeProfile(int bci) { return null; } @Override public double getBranchTakenProbability(int bci) { return -1; } @Override public double[] getSwitchProbabilities(int bci) { return null; } @Override public RiExceptionSeen getExceptionSeen(int bci) { return exceptionSeen; } @Override public int getExecutionCount(int bci) { return -1; } public static RiProfilingInfo get(RiExceptionSeen exceptionSeen) { return NO_PROFILING_INFO[exceptionSeen.ordinal()]; } @Override public int getDeoptimizationCount(RiDeoptReason reason) { return 0; } @Override public String toString() { return "BaseProfilingInfo<" + CiUtil.profileToString(this, null, "; ") + ">"; } }