Mercurial > hg > truffle
annotate graal/GraalCompiler/src/com/sun/c1x/ir/LookupSwitch.java @ 2774:93fd92c9f8b0
Removed usage of stateAfter on BlockEnd instructions.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Tue, 24 May 2011 13:39:50 +0200 |
parents | ca31e84ff154 |
children | 398b8fa5dc81 |
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 |
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25 import static com.sun.c1x.debug.InstructionPrinter.InstructionLineColumn.*; |
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26 |
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27 import java.util.*; |
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28 |
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29 import com.oracle.graal.graph.*; |
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30 import com.sun.c1x.debug.*; |
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31 import com.sun.c1x.value.*; |
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32 |
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33 /** |
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34 * The {@code LookupSwitch} instruction represents a lookup switch bytecode, which has a sorted |
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35 * array of key values. |
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36 */ |
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37 public final class LookupSwitch extends Switch { |
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38 |
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39 private static final int INPUT_COUNT = 0; |
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40 private static final int SUCCESSOR_COUNT = 0; |
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41 |
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42 final int[] keys; |
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43 |
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44 /** |
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45 * Constructs a new LookupSwitch instruction. |
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46 * @param value the instruction producing the value being switched on |
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47 * @param successors the list of successors |
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48 * @param keys the list of keys, sorted |
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49 * @param stateAfter the state after the switch |
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50 * @param graph |
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51 */ |
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52 public LookupSwitch(Value value, List<? extends Instruction> successors, int[] keys, Graph graph) { |
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53 super(value, successors, INPUT_COUNT, SUCCESSOR_COUNT, graph); |
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54 this.keys = keys; |
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55 } |
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56 |
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57 /** |
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58 * Gets the key at the specified index. |
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59 * @param i the index |
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60 * @return the key at that index |
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61 */ |
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62 public int keyAt(int i) { |
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63 return keys[i]; |
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64 } |
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65 |
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66 public int keysLength() { |
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67 return keys.length; |
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68 } |
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69 |
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70 @Override |
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71 public void accept(ValueVisitor v) { |
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72 v.visitLookupSwitch(this); |
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73 } |
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74 |
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75 @Override |
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76 public void print(LogStream out) { |
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77 out.print("lookupswitch "); |
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78 out.println(value()); |
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79 int l = numberOfCases(); |
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80 for (int i = 0; i < l; i++) { |
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81 INSTRUCTION.advance(out); |
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82 out.printf("case %5d: B%d%n", keyAt(i), blockSuccessors().get(i).blockID); |
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83 } |
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84 INSTRUCTION.advance(out); |
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85 out.print("default : B").print(defaultSuccessor().blockID); |
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86 } |
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87 } |