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annotate graal/GraalCompiler/src/com/sun/c1x/ir/Convert.java @ 2509:16b9a8b5ad39

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Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 27 Apr 2011 11:50:44 +0200
parents graal/Compiler/src/com/sun/c1x/ir/Convert.java@9ec15d6914ca
children 092e628ddd5d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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.sun.c1x.debug.*;
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26 import com.sun.c1x.util.*;
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27 import com.sun.cri.bytecode.*;
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28 import com.sun.cri.ci.*;
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29
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30 /**
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31 * The {@code Convert} class represents a conversion between primitive types.
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32 *
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33 * @author Ben L. Titzer
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34 */
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35 public final class Convert extends Instruction {
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36
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37 /**
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38 * The opcode for this conversion operation.
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39 */
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40 public final int opcode;
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41
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42 Value value;
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43
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44 /**
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45 * Constructs a new Convert instance.
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46 * @param opcode the bytecode representing the operation
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47 * @param value the instruction producing the input value
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48 * @param kind the result type of this instruction
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49 */
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50 public Convert(int opcode, Value value, CiKind kind) {
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51 super(kind);
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52 this.opcode = opcode;
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53 this.value = value;
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54 }
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55
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56 /**
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57 * Gets the instruction which produces the input value to this instruction.
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58 * @return the input value instruction
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59 */
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60 public Value value() {
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61 return value;
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62 }
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63
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64 @Override
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65 public void inputValuesDo(ValueClosure closure) {
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66 value = closure.apply(value);
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67 }
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68
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69 @Override
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70 public void accept(ValueVisitor v) {
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71 v.visitConvert(this);
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72 }
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73
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74 @Override
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75 public int valueNumber() {
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76 return Util.hash1(opcode, value);
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77 }
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78
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79 @Override
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80 public boolean valueEqual(Instruction i) {
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81 if (i instanceof Convert) {
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82 Convert o = (Convert) i;
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83 return opcode == o.opcode && value == o.value;
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84 }
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85 return false;
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86 }
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87
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88 @Override
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89 public void print(LogStream out) {
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90 out.print(Bytecodes.nameOf(opcode)).print('(').print(value()).print(')');
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91 }
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92 }