Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/oops/BranchData.java @ 18665:96861e3f8cc5
made CFGPrinterObserver reset (upon close) properly
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 11 Dec 2014 22:14:30 +0100 |
parents | b9a9ed0f8eeb |
children |
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/* * Copyright (c) 2011, 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 sun.jvm.hotspot.oops; import java.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.utilities.*; // BranchData // // A BranchData is used to access profiling data for a two-way branch. // It consists of taken and notTaken counts as well as a data displacement // for the taken case. public class BranchData extends JumpData { static final int notTakenOffSet = jumpCellCount; static final int branchCellCount = notTakenOffSet + 1; public BranchData(DataLayout layout) { super(layout); //assert(layout.tag() == DataLayout.branchDataTag, "wrong type"); } static int staticCellCount() { return branchCellCount; } public int cellCount() { return staticCellCount(); } // Direct accessor int notTaken() { return uintAt(notTakenOffSet); } // Code generation support static int notTakenOffset() { return cellOffset(notTakenOffSet); } static int branchDataSize() { return cellOffset(branchCellCount); } public void printDataOn(PrintStream st) { printShared(st, "BranchData"); st.println("taken(" + taken() + ") displacement(" + displacement() + ")"); tab(st); st.println("not taken(" + notTaken() + ")"); } }