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comparison agent/src/share/classes/sun/jvm/hotspot/opto/Block.java @ 3939:f6f3bb0ee072

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7088955: add C2 IR support to the SA Reviewed-by: kvn
author never
date Sun, 11 Sep 2011 14:48:24 -0700
parents
children 79f492f184d0
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3938:e6b1331a51d2 3939:f6f3bb0ee072
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 }