Mercurial > hg > truffle
annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/sparc/MembarOperand.java @ 4235:23f41c48b19b
Re-enabled Java cleaning in gate.
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 06 Jan 2012 14:22:57 +0100 |
parents | e233f5660da4 |
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rev | line source |
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1 /* |
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2 * Copyright (c) 2007, 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.max.asm.sparc; |
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24 |
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25 import java.util.*; |
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26 |
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27 import com.sun.max.asm.*; |
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28 import com.sun.max.util.*; |
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29 |
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30 /** |
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31 * The components of the argument to the Memory Barrier (i.e. {@code membar}) instruction. |
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32 */ |
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33 public final class MembarOperand extends AbstractSymbolicArgument { |
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34 |
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35 private String externalName; |
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36 |
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37 private MembarOperand(String name, String externalName, int value) { |
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38 super(name, value); |
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39 this.externalName = externalName; |
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40 } |
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41 |
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42 private MembarOperand(MembarOperand addend1, MembarOperand addend2) { |
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43 super(addend1.name() + "_" + addend2.name(), addend1.value() | addend2.value()); |
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44 externalName = addend1.externalName + " | " + addend2.externalName; |
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45 } |
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46 |
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47 @Override |
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48 public String externalValue() { |
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49 return externalName; |
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50 } |
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51 |
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52 @Override |
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53 public String toString() { |
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54 return externalValue(); |
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55 } |
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56 |
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57 public MembarOperand or(MembarOperand other) { |
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58 return new MembarOperand(this, other); |
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59 } |
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60 |
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61 public static final MembarOperand NO_MEMBAR = new MembarOperand("None", "0", 0); |
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62 public static final MembarOperand LOAD_LOAD = new MembarOperand("LoadLoad", "#LoadLoad", 1); |
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63 public static final MembarOperand STORE_LOAD = new MembarOperand("StoreLoad", "#StoreLoad", 2); |
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64 public static final MembarOperand LOAD_STORE = new MembarOperand("LoadStore", "#LoadStore", 4); |
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65 public static final MembarOperand STORE_STORE = new MembarOperand("StoreStore", "#StoreStore", 8); |
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66 public static final MembarOperand LOOKASIDE = new MembarOperand("Lookaside", "#Lookaside", 16); |
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67 public static final MembarOperand MEM_ISSUE = new MembarOperand("MemIssue", "#MemIssue", 32); |
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68 public static final MembarOperand SYNC = new MembarOperand("Sync", "#Sync", 64); |
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69 |
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70 public static final Symbolizer<MembarOperand> SYMBOLIZER = new Symbolizer<MembarOperand>() { |
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71 |
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72 private final List<MembarOperand> values = Arrays.asList(new MembarOperand[]{NO_MEMBAR, LOAD_LOAD, STORE_LOAD, LOAD_STORE, STORE_STORE, LOOKASIDE, MEM_ISSUE, SYNC}); |
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73 |
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74 public Class<MembarOperand> type() { |
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75 return MembarOperand.class; |
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76 } |
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77 |
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78 public int numberOfValues() { |
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79 return values.size(); |
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80 } |
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81 |
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82 public MembarOperand fromValue(int value) { |
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83 MembarOperand result = NO_MEMBAR; |
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84 for (MembarOperand operand : values) { |
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85 if ((value & operand.value()) != 0) { |
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86 if (result == NO_MEMBAR) { |
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87 result = operand; |
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88 } else { |
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89 result = new MembarOperand(result, operand); |
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90 } |
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91 } |
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92 } |
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93 return result; |
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94 } |
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95 |
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96 public Iterator<MembarOperand> iterator() { |
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97 return values.iterator(); |
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98 } |
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99 }; |
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100 |
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101 } |