Mercurial > hg > truffle

comparison agent/src/share/classes/sun/jvm/hotspot/oops/CounterData.java @ 3939:f6f3bb0ee072

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7088955: add C2 IR support to the SA Reviewed-by: kvn
author never
date Sun, 11 Sep 2011 14:48:24 -0700
parents
children 4bec1b1f7b33
comparison
equal deleted inserted replaced
3938:e6b1331a51d2 3939:f6f3bb0ee072
1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
3 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
4 *
5 *
6 *
7 *
8 *
9 *
10 *
11 *
12 *
13 *
14 *
15 *
16 *
17 *
18 *
19 *
20 *
21 *
22 *
23 */
24
25 package sun.jvm.hotspot.oops;
26
27 import java.io.*;
28 import java.util.*;
29 import sun.jvm.hotspot.debugger.*;
30 import sun.jvm.hotspot.runtime.*;
31 import sun.jvm.hotspot.types.*;
32 import sun.jvm.hotspot.utilities.*;
33
34 // CounterData
35 //
36 // A CounterData corresponds to a simple counter.
37 public class CounterData extends BitData {
38
39 static final int countOff = 0;
40 static final int counterCellCount = 1;
41
42 public CounterData(DataLayout layout) {
43 super(layout);
44 }
45
46 static int staticCellCount() {
47 return counterCellCount;
48 }
49
50 public int cellCount() {
51 return staticCellCount();
52 }
53
54 // Direct accessor
55 int count() {
56 return uintAt(countOff);
57 }
58
59 // Code generation support
60 static int countOffset() {
61 return cellOffset(countOff);
62 }
63 static int counterDataSize() {
64 return cellOffset(counterCellCount);
65 }
66
67 public void printDataOn(PrintStream st) {
68 printShared(st, "CounterData");
69 st.println("count(" + count() + ")");
70 }
71 }