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annotate 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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2921
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1 /*
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.max.graal.compiler.ir;
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24
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25 import com.oracle.max.graal.compiler.debug.*;
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26 import com.oracle.max.graal.graph.*;
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27 import com.sun.cri.ci.*;
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28
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29
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30 public final class ClipNode extends Instruction {
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31 private static final int INPUT_COUNT = 1;
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32 private static final int INPUT_NODE = 0;
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33
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34 private static final int SUCCESSOR_COUNT = 0;
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35
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36 /**
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37 * The instruction that produces the object tested against null.
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38 */
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39 public FloatingNode node() {
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40 return (FloatingNode) inputs().get(super.inputCount() + INPUT_NODE);
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41 }
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42
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43 public FloatingNode setNode(FloatingNode n) {
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44 return (FloatingNode) inputs().set(super.inputCount() + INPUT_NODE, n);
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45 }
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46
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47 public ClipNode(Graph graph) {
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48 super(CiKind.Illegal, INPUT_COUNT, SUCCESSOR_COUNT, graph);
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49 }
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50
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51 @Override
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52 public void accept(ValueVisitor v) {
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53 // Do nothing.
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54 }
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55
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56 @Override
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57 public void print(LogStream out) {
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58 out.print("clip node ").print(node());
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59 }
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60
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61 @Override
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62 public Node copy(Graph into) {
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63 return new ClipNode(into);
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64 }
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65 }