Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/oops/BranchData.java @ 4772:8f8b94305aff
7129240: backout fix for 7102776 until 7128770 is resolved
Reviewed-by: phh, bobv, coleenp, dcubed
Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>
author | dcubed |
---|---|
date | Wed, 11 Jan 2012 19:54:34 -0800 |
parents | f6f3bb0ee072 |
children | 4bec1b1f7b33 |
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/* * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * */ 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() + ")"); } }