Mercurial > hg > truffle
comparison graal/com.oracle.max.graal.compiler/src/com/sun/c1x/lir/LIRLabel.java @ 2872:0341b6424579
Project renaming.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 08 Jun 2011 08:42:25 +0200 |
parents | graal/GraalCompiler/src/com/sun/c1x/lir/LIRLabel.java@0ea5f12e873a |
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2871:d704eb526603 | 2872:0341b6424579 |
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1 /* | |
2 * Copyright (c) 2009, 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.sun.c1x.lir; | |
24 | |
25 import com.oracle.max.asm.*; | |
26 import com.sun.cri.ci.*; | |
27 | |
28 /** | |
29 * The {@code LIRLabel} class definition. | |
30 * | |
31 * @author Marcelo Cintra | |
32 */ | |
33 public class LIRLabel extends LIROp0 { | |
34 | |
35 private Label label; | |
36 | |
37 /** | |
38 * Constructs a LIRLabel instruction. | |
39 * @param label the label | |
40 */ | |
41 public LIRLabel(Label label) { | |
42 super(LIROpcode.Label, CiValue.IllegalValue, null); | |
43 assert label != null; | |
44 this.label = label; | |
45 } | |
46 | |
47 /** | |
48 * Gets the label associated to this instruction. | |
49 * @return the label | |
50 */ | |
51 public Label label() { | |
52 return label; | |
53 } | |
54 | |
55 /** | |
56 * Emits target assembly code for this LIRLabel instruction. | |
57 * @param masm the LIRAssembler | |
58 */ | |
59 @Override | |
60 public void emitCode(LIRAssembler masm) { | |
61 masm.emitOpLabel(this); | |
62 } | |
63 | |
64 /** | |
65 * Prints this instruction to a LogStream. | |
66 */ | |
67 @Override | |
68 public String operationString(OperandFormatter operandFmt) { | |
69 return label.isBound() ? String.valueOf(label.position()) : "?"; | |
70 } | |
71 } |