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annotate graal/GraalCompiler/src/com/sun/c1x/lir/LIRCompareAndSwap.java @ 2725:c379183d1c54

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Removed target block references from LIR to BlockBegin instructions. Now there is a getLIRBlock method in the LIRGenerator.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Thu, 19 May 2011 16:56:05 +0200
parents 16b9a8b5ad39
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2507
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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 }