Mercurial > hg > graal-jvmci-8
comparison graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiTypeProfile.java @ 4199:aaac4894175c
Renamed cri packages from sun to oracle.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 03 Jan 2012 16:29:28 +0100 |
parents | graal/com.oracle.max.cri/src/com/sun/cri/ri/RiTypeProfile.java@bc8527f3071c |
children | 4e3aaf14cbc6 |
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4198:8c9c0e1eaab1 | 4199:aaac4894175c |
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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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
23 package com.oracle.max.cri.ri; | |
24 | |
25 import java.io.*; | |
26 | |
27 /** | |
28 * This profile object represents the type profile of one call site, cast or instanceof instruction. The precision of | |
29 * the supplied values may vary, but a runtime that provides this information should be aware that it will be used to | |
30 * guide performance-critical decisions like speculative inlining, etc. | |
31 */ | |
32 public class RiTypeProfile implements Serializable { | |
33 | |
34 /** | |
35 * | |
36 */ | |
37 private static final long serialVersionUID = -6877016333706838441L; | |
38 | |
39 /** | |
40 * How often the instruction was executed, which may be used to judge the maturity of this profile. | |
41 */ | |
42 public int count; | |
43 | |
44 /** | |
45 * An estimation of how many different receiver types were encountered. This may or may not be the same as | |
46 * probabilities.length/types.length, as the runtime may store probabilities for a limited number of receivers. | |
47 */ | |
48 public int morphism; | |
49 | |
50 /** | |
51 * A list of receivers for which the runtime has recorded probability information. This array needs to have the same | |
52 * length as {@link RiTypeProfile#probabilities}. | |
53 */ | |
54 public RiResolvedType[] types; | |
55 | |
56 /** | |
57 * The estimated probabilities of the different receivers. This array needs to have the same length as | |
58 * {@link RiTypeProfile#types}. | |
59 */ | |
60 public float[] probabilities; | |
61 } |