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annotate graal/GraalCompiler/src/com/sun/c1x/ir/NewInstance.java @ 2600:f1bc67c2d453

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new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
author Lukas Stadler <lukas.stadler@jku.at>
date Thu, 05 May 2011 16:32:20 +0200
parents c58a301eb2d7
children 91d3952f7eb7
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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.sun.c1x.ir;
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24
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25 import com.oracle.graal.graph.*;
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26 import com.sun.c1x.debug.*;
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27 import com.sun.c1x.value.*;
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28 import com.sun.cri.ci.*;
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29 import com.sun.cri.ri.*;
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30
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31 /**
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32 * The {@code NewInstance} instruction represents the allocation of an instance class object.
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33 */
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34 public final class NewInstance extends StateSplit {
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36 private static final int INPUT_COUNT = 0;
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37 private static final int SUCCESSOR_COUNT = 0;
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38
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39 final RiType instanceClass;
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40 public final int cpi;
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41 public final RiConstantPool constantPool;
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42
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43 /**
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44 * Constructs a NewInstance instruction.
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45 * @param type the class being allocated
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46 * @param cpi the constant pool index
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47 * @param stateBefore the state before executing this instruction
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48 * @param graph
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49 */
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50 public NewInstance(RiType type, int cpi, RiConstantPool constantPool, FrameState stateBefore, Graph graph) {
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51 super(CiKind.Object, stateBefore, INPUT_COUNT, SUCCESSOR_COUNT, graph);
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52 this.instanceClass = type;
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53 this.cpi = cpi;
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54 this.constantPool = constantPool;
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55 setFlag(Flag.NonNull);
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56 }
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57
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58 /**
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59 * Gets the instance class being allocated by this instruction.
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60 * @return the instance class allocated
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61 */
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62 public RiType instanceClass() {
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63 return instanceClass;
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64 }
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65
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66 /**
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67 * Gets the exact type produced by this instruction. For allocations of instance classes, this is
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68 * always the class allocated.
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69 * @return the exact type produced by this instruction
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70 */
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71 @Override
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72 public RiType exactType() {
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73 return instanceClass;
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74 }
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75
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76 @Override
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77 public void accept(ValueVisitor v) {
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78 v.visitNewInstance(this);
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79 }
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80
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81 @Override
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82 public void print(LogStream out) {
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83 out.print("new instance ").print(CiUtil.toJavaName(instanceClass()));
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84 }
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85 }