Mercurial > hg > graal-jvmci-8
annotate graal/GraalCompiler/src/com/sun/c1x/lir/LIRCompareAndSwap.java @ 2846:9b8c194c1b1f
Small clean up.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Tue, 07 Jun 2011 15:13:22 +0200 |
parents | 16b9a8b5ad39 |
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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.lir; |
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24 |
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25 import com.sun.cri.ci.*; |
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26 |
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27 /** |
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28 * The {@code LIRCompareAndSwap} class definition. |
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29 * |
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30 * @author Marcelo Cintra |
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31 * |
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32 */ |
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33 public class LIRCompareAndSwap extends LIRInstruction { |
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34 |
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35 /** |
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36 * Constructs a new LIRCompareAndSwap instruction. |
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37 * @param addr |
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38 * @param expectedValue |
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39 * @param newValue |
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40 */ |
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41 public LIRCompareAndSwap(LIROpcode opcode, CiValue addr, CiValue expectedValue, CiValue newValue) { |
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42 super(opcode, CiValue.IllegalValue, null, false, 0, 0, addr, expectedValue, newValue); |
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43 } |
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44 |
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45 /** |
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46 * Gets the address of compare and swap. |
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47 * |
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48 * @return the address |
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49 */ |
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50 public CiValue address() { |
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51 return operand(0); |
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52 } |
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53 |
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54 /** |
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55 * Gets the cmpValue of this class. |
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56 * |
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57 * @return the cmpValue |
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58 */ |
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59 public CiValue expectedValue() { |
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60 return operand(1); |
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61 } |
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62 |
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63 /** |
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64 * Gets the newValue of this class. |
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65 * |
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66 * @return the newValue |
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67 */ |
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68 public CiValue newValue() { |
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69 return operand(2); |
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70 } |
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71 |
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72 /** |
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73 * Emits target assembly code for this instruction. |
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74 * |
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75 * @param masm the target assembler |
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76 */ |
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77 @Override |
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78 public void emitCode(LIRAssembler masm) { |
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79 masm.emitCompareAndSwap(this); |
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80 } |
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81 } |