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annotate graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/ir/NewArray.java @ 2874:d90bf514d647

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Renamed packages.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 08 Jun 2011 08:59:54 +0200
parents graal/com.oracle.max.graal.compiler/src/com/sun/c1x/ir/NewArray.java@0341b6424579
children ef9afe6ffd5e
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1 /*
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2 * Copyright (c) 2009, 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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25 import com.oracle.max.graal.graph.*;
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26 import com.sun.cri.ci.*;
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27
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28 /**
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29 * The {@code NewArray} class is the base of all instructions that allocate arrays.
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30 */
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31 public abstract class NewArray extends Instruction {
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32
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33 private static final int INPUT_COUNT = 1;
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34 private static final int INPUT_LENGTH = 0;
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35
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36 private static final int SUCCESSOR_COUNT = 0;
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37
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38 @Override
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39 protected int inputCount() {
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40 return super.inputCount() + INPUT_COUNT;
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41 }
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42
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43 @Override
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44 protected int successorCount() {
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45 return super.successorCount() + SUCCESSOR_COUNT;
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46 }
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47
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48 /**
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49 * The instruction that produces the length of this array.
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50 */
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51 public Value length() {
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52 return (Value) inputs().get(super.inputCount() + INPUT_LENGTH);
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53 }
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54
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55 public Value setLength(Value n) {
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56 return (Value) inputs().set(super.inputCount() + INPUT_LENGTH, n);
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57 }
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58
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59 /**
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60 * Constructs a new NewArray instruction.
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61 * @param length the instruction that produces the length for this allocation
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62 * @param stateBefore the state before the allocation
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63 * @param inputCount
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64 * @param successorCount
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65 * @param graph
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66 */
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67 NewArray(Value length, int inputCount, int successorCount, Graph graph) {
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68 super(CiKind.Object, inputCount + INPUT_COUNT, successorCount + SUCCESSOR_COUNT, graph);
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69 setLength(length);
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70 }
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71 }