Mercurial > hg > graal-compiler
comparison agent/src/share/classes/sun/jvm/hotspot/oops/CounterData.java @ 3939:f6f3bb0ee072
7088955: add C2 IR support to the SA
Reviewed-by: kvn
author | never |
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date | Sun, 11 Sep 2011 14:48:24 -0700 |
parents | |
children | 4bec1b1f7b33 |
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3938:e6b1331a51d2 | 3939:f6f3bb0ee072 |
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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 } |