Mercurial > hg > graal-compiler
comparison graal/GraalCompiler/src/com/sun/c1x/ir/LoopEnd.java @ 2799:e1dad0edd57a
first part of loop reworking
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Fri, 27 May 2011 17:48:28 +0200 |
parents | |
children | bd17ac598c6e |
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2798:58e65eb6bb5d | 2799:e1dad0edd57a |
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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.sun.c1x.ir; | |
24 | |
25 import com.oracle.graal.graph.*; | |
26 import com.sun.c1x.debug.*; | |
27 | |
28 | |
29 public class LoopEnd extends Merge { | |
30 | |
31 private static final int INPUT_COUNT = 1; | |
32 private static final int INPUT_LOOP_BEGIN = 0; | |
33 | |
34 private static final int SUCCESSOR_COUNT = 0; | |
35 | |
36 @Override | |
37 protected int inputCount() { | |
38 return super.inputCount() + INPUT_COUNT; | |
39 } | |
40 | |
41 @Override | |
42 protected int successorCount() { | |
43 return super.successorCount() + SUCCESSOR_COUNT; | |
44 } | |
45 | |
46 /** | |
47 * The instruction which produces the input value to this instruction. | |
48 */ | |
49 public LoopBegin loopBegin() { | |
50 return (LoopBegin) inputs().get(super.inputCount() + INPUT_LOOP_BEGIN); | |
51 } | |
52 | |
53 public LoopBegin setLoopBegin(LoopBegin n) { | |
54 return (LoopBegin) inputs().set(super.inputCount() + INPUT_LOOP_BEGIN, n); | |
55 } | |
56 | |
57 public LoopEnd(Graph graph) { | |
58 super(INPUT_COUNT, SUCCESSOR_COUNT, graph); | |
59 } | |
60 | |
61 @Override | |
62 public void accept(ValueVisitor v) { | |
63 v.visitLoopEnd(this); | |
64 } | |
65 | |
66 @Override | |
67 public void print(LogStream out) { | |
68 out.print("loopEnd ").print(loopBegin()); | |
69 } | |
70 | |
71 | |
72 } |