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comparison graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/ir/ClipNode.java @ 2921:d01b4f441613

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Added clip node.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Thu, 09 Jun 2011 13:25:45 +0200
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2920:a6d0743f3380 2921:d01b4f441613
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.graal.compiler.ir;
24
25 import com.oracle.max.graal.compiler.debug.*;
26 import com.oracle.max.graal.graph.*;
27 import com.sun.cri.ci.*;
28
29
30 public final class ClipNode extends Instruction {
31 private static final int INPUT_COUNT = 1;
32 private static final int INPUT_NODE = 0;
33
34 private static final int SUCCESSOR_COUNT = 0;
35
36 /**
37 * The instruction that produces the object tested against null.
38 */
39 public FloatingNode node() {
40 return (FloatingNode) inputs().get(super.inputCount() + INPUT_NODE);
41 }
42
43 public FloatingNode setNode(FloatingNode n) {
44 return (FloatingNode) inputs().set(super.inputCount() + INPUT_NODE, n);
45 }
46
47 public ClipNode(Graph graph) {
48 super(CiKind.Illegal, INPUT_COUNT, SUCCESSOR_COUNT, graph);
49 }
50
51 @Override
52 public void accept(ValueVisitor v) {
53 // Do nothing.
54 }
55
56 @Override
57 public void print(LogStream out) {
58 out.print("clip node ").print(node());
59 }
60
61 @Override
62 public Node copy(Graph into) {
63 return new ClipNode(into);
64 }
65 }