Mercurial > hg > graal-jvmci-8
annotate graal/GraalCompiler/src/com/sun/c1x/ir/Local.java @ 2848:c061a6be3728
merge
author | Gilles Duboscq <gilles.duboscq@oracle.com> |
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date | Tue, 31 May 2011 15:19:30 +0200 |
parents | caf55daa41dc bfce42cd9c07 |
children | 14708c03abba |
rev | line source |
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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 |
2603 | 25 import com.oracle.graal.graph.*; |
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26 import com.sun.c1x.debug.*; |
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27 import com.sun.cri.ci.*; |
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28 import com.sun.cri.ri.*; |
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29 |
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30 /** |
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31 * The {@code Local} instruction is a placeholder for an incoming argument |
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32 * to a function call. |
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33 */ |
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34 public final class Local extends FloatingNode { |
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35 |
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36 private static final int INPUT_COUNT = 1; |
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37 |
2603 | 38 private static final int SUCCESSOR_COUNT = 0; |
39 | |
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40 private final int index; |
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41 private RiType declaredType; |
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42 |
2603 | 43 public Local(CiKind kind, int javaIndex, Graph graph) { |
44 super(kind, INPUT_COUNT, SUCCESSOR_COUNT, graph); | |
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45 this.index = javaIndex; |
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46 } |
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47 |
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48 /** |
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49 * Gets the index of this local. |
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50 * @return the index |
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51 */ |
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52 public int index() { |
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53 return index; |
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54 } |
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55 |
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56 /** |
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57 * Sets the declared type of this local, e.g. derived from the signature of the method. |
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58 * @param declaredType the declared type of the local variable |
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59 */ |
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60 public void setDeclaredType(RiType declaredType) { |
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61 this.declaredType = declaredType; |
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62 } |
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63 |
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64 /** |
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65 * Computes the declared type of the result of this instruction, if possible. |
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66 * @return the declared type of the result of this instruction, if it is known; {@code null} otherwise |
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67 */ |
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68 @Override |
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69 public RiType declaredType() { |
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70 return declaredType; |
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71 } |
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72 |
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73 @Override |
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74 public void accept(ValueVisitor v) { |
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75 v.visitLocal(this); |
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76 } |
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77 |
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78 @Override |
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79 public void print(LogStream out) { |
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80 out.print("local[index ").print(index()).print(']'); |
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81 } |
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82 |
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83 @Override |
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84 protected int inputCount() { |
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85 return super.inputCount() + INPUT_COUNT; |
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86 } |
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87 |
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88 @Override |
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89 protected int successorCount() { |
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90 return super.successorCount() + SUCCESSOR_COUNT; |
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91 } |
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92 |
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93 @Override |
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94 public Node copy(Graph into) { |
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95 Local x = new Local(kind, index, into); |
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96 x.setDeclaredType(declaredType()); |
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97 x.setNonNull(isNonNull()); |
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98 return x; |
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99 } |
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100 } |