1 /* 2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 20 * CA 95054 USA or visit www.sun.com if you need additional information or 21 * have any questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.opto; 26 27 import java.util.*; 28 import java.io.PrintStream; 29 import sun.jvm.hotspot.debugger.*; 30 import sun.jvm.hotspot.runtime.*; 31 import sun.jvm.hotspot.oops.*; 32 import sun.jvm.hotspot.types.*; 33 34 public class Block extends VMObject { 35 static { 36 VM.registerVMInitializedObserver(new Observer() { 37 public void update(Observable o, Object data) { 38 initialize(VM.getVM().getTypeDataBase()); 39 } 40 }); 41 } 42 43 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { 44 Type type = db.lookupType("Block"); 45 nodesField = type.getAddressField("_nodes"); 46 succsField = type.getAddressField("_succs"); 47 numSuccsField = new CIntField(type.getCIntegerField("_num_succs"), 0); 48 preOrderField = new CIntField(type.getCIntegerField("_pre_order"), 0); 49 domDepthField = new CIntField(type.getCIntegerField("_dom_depth"), 0); 50 idomField = type.getAddressField("_idom"); 51 freqField = type.getJFloatField("_freq"); 52 } 53 54 private static AddressField nodesField; 55 private static AddressField succsField; 56 private static CIntField numSuccsField; 57 private static CIntField preOrderField; 58 private static CIntField domDepthField; 59 private static AddressField idomField; 60 private static JFloatField freqField; 61 62 public Block(Address addr) { 63 super(addr); 64 } 65 66 public int preOrder() { 67 return (int)preOrderField.getValue(getAddress()); 68 } 69 70 public float freq() { 71 return (float)freqField.getValue(getAddress()); 72 } 73 74 public Node_List nodes() { 75 return new Node_List(getAddress().addOffsetTo(nodesField.getOffset())); 76 } 77 78 public void dump(PrintStream out) { 79 out.print("B" + preOrder()); 80 out.print(" Freq: " + freq()); 81 out.println(); 82 Node_List nl = nodes(); 83 int cnt = nl.size(); 84 for( int i=0; i<cnt; i++ ) 85 nl.at(i).dump(out); 86 out.print("\n"); 87 } 88 }