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annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/sparc/MembarOperand.java @ 4150:c78bace5086a

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start work on integrating old hooks into mx, work on sanity checks introduce a DB class to access the bench DB in an easier way (create benchmarks and benchmark values automatically in the DB)
author Gilles Duboscq <gilles.m.duboscq@gmail.com>
date Tue, 20 Dec 2011 15:34:43 +0100
parents e233f5660da4
children
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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 }