Mercurial > hg > truffle
comparison graal/GraalCompiler/src/com/sun/c1x/ir/Deoptimize.java @ 2671:d8601d421b96
New Deoptimize node, remove ResolveClass node and replace it with deoptimization
author | Gilles Duboscq <gilles.duboscq@oracle.com> |
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date | Thu, 12 May 2011 17:17:50 +0200 |
parents | |
children | 7b7dbe19fafb |
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2670:50b181d88c9f | 2671:d8601d421b96 |
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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.ir; | |
24 | |
25 import com.oracle.graal.graph.*; | |
26 import com.sun.c1x.debug.*; | |
27 import com.sun.c1x.value.*; | |
28 import com.sun.cri.ci.*; | |
29 | |
30 | |
31 /** | |
32 * | |
33 */ | |
34 public class Deoptimize extends Instruction { | |
35 | |
36 private static final int INPUT_COUNT = 1; | |
37 private static final int SUCCESSOR_COUNT = 0; | |
38 private static final int INPUT_STATE_BEFORE = 0; | |
39 | |
40 /** | |
41 * @param kind | |
42 * @param inputCount | |
43 * @param successorCount | |
44 * @param graph | |
45 */ | |
46 public Deoptimize(Graph graph, FrameState stateBefore) { | |
47 super(CiKind.Illegal, INPUT_COUNT, SUCCESSOR_COUNT, graph); | |
48 this.setStateBefore(stateBefore); | |
49 } | |
50 | |
51 @Override | |
52 protected int inputCount() { | |
53 return super.inputCount() + INPUT_COUNT; | |
54 } | |
55 | |
56 @Override | |
57 protected int successorCount() { | |
58 return super.successorCount() + SUCCESSOR_COUNT; | |
59 } | |
60 | |
61 /** | |
62 * The state for this instruction. | |
63 */ | |
64 public FrameState stateBefore() { | |
65 return (FrameState) inputs().get(super.inputCount() + INPUT_STATE_BEFORE); | |
66 } | |
67 | |
68 public FrameState setStateBefore(FrameState n) { | |
69 return (FrameState) inputs().set(super.inputCount() + INPUT_STATE_BEFORE, n); | |
70 } | |
71 | |
72 @Override | |
73 public void accept(ValueVisitor v) { | |
74 v.visitDeoptimize(this); | |
75 } | |
76 | |
77 @Override | |
78 public void print(LogStream out) { | |
79 out.print("deoptimize"); | |
80 } | |
81 | |
82 } |