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annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/risc/field/ImmediateOperandField.java @ 4142:bc8527f3071c

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Adjust code base to new level of warnings.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 18 Dec 2011 05:24:06 +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.gen.risc.field;
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24
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25 import java.lang.reflect.*;
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26 import java.util.*;
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27
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28 import com.sun.max.asm.*;
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29 import com.sun.max.asm.gen.*;
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30 import com.sun.max.asm.gen.risc.bitRange.*;
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31
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32 /**
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33 * A field that contains an immediate value.
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34 */
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35 public class ImmediateOperandField extends OperandField<ImmediateArgument> implements ImmediateParameter, WrappableSpecification, InstructionConstraint {
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36
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37 public String asJavaExpression() {
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38 final String value = valueString();
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39 return minArgumentValue() + " <= " + value + " && " + value + " <= " + maxArgumentValue();
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40 }
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41
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42 public boolean check(Template template, List<Argument> arguments) {
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43 final long value = evaluate(template, arguments);
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44 return minArgumentValue() <= value && value <= maxArgumentValue();
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45 }
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46
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47 public Method predicateMethod() {
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48 return null;
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49 }
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50
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51 public boolean referencesParameter(Parameter parameter) {
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52 return parameter == this;
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53 }
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54
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55 public ImmediateOperandField(BitRange bitRange) {
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56 super(bitRange);
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57 }
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58
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59 public static ImmediateOperandField create(BitRangeOrder order, int... bits) {
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60 final BitRange bitRange = BitRange.create(bits, order);
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61 return new ImmediateOperandField(bitRange);
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62 }
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63
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64 public static ImmediateOperandField createDescending(int firstBitIndex, int lastBitIndex) {
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65 return new ImmediateOperandField(new DescendingBitRange(firstBitIndex, lastBitIndex));
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66 }
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67
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68 public static ImmediateOperandField createAscending(int firstBitIndex, int lastBitIndex) {
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69 return new ImmediateOperandField(new AscendingBitRange(firstBitIndex, lastBitIndex));
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70 }
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71
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72 public static ImmediateOperandField createAscending(int... bits) {
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73 return create(BitRangeOrder.ASCENDING, bits);
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74 }
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75
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76 @Override
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77 public Class type() {
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78 return int.class;
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79 }
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80
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81 public String valueString() {
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82 if (boundTo() != null) {
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83 return boundTo().valueString();
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84 }
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85 return variableName();
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86 }
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87
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88 @Override
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89 public ImmediateOperandField beSigned() {
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90 return (ImmediateOperandField) super.beSigned();
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91 }
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92
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93 @Override
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94 public ImmediateOperandField beSignedOrUnsigned() {
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95 return (ImmediateOperandField) super.beSignedOrUnsigned();
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96 }
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97
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98 @Override
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99 public Immediate32Argument disassemble(int instruction) {
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100 return new Immediate32Argument(extract(instruction));
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101 }
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102
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103 @Override
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104 public ImmediateOperandField setVariableName(String name) {
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105 super.setVariableName(name);
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106 return this;
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107 }
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108
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109 private ArgumentRange argumentRange;
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110
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111 public ArgumentRange argumentRange() {
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112 if (argumentRange == null) {
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113 argumentRange = new ArgumentRange(this, minArgumentValue(), maxArgumentValue());
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114 }
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115 return argumentRange;
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116 }
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117
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118 private Iterable<? extends Argument> testArguments;
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119 private Iterable<? extends Argument> illegalTestArguments;
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120
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121 public Iterable<? extends Argument> getLegalTestArguments() {
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122 if (testArguments == null) {
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123 final List<Integer> integers = signDependentOperations().legalTestArgumentValues(minArgumentValue(), maxArgumentValue(), grain());
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124 List<Argument> result = new ArrayList<>(integers.size());
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125 for (Integer i : integers) {
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126 result.add(new Immediate32Argument(i));
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127 }
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128 testArguments = result;
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129 }
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130 return testArguments;
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131 }
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132
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133 public Iterable<? extends Argument> getIllegalTestArguments() {
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134 if (this.illegalTestArguments == null) {
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135 final List<Immediate32Argument> illegalArguments = new LinkedList<>();
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136 final int min = minArgumentValue();
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137 if (min != Integer.MIN_VALUE) {
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138 illegalArguments.add(new Immediate32Argument(min - 1));
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139 illegalArguments.add(new Immediate32Argument(Integer.MIN_VALUE));
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140 }
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141 final int max = maxArgumentValue();
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142 if (max != Integer.MAX_VALUE) {
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143 illegalArguments.add(new Immediate32Argument(max + 1));
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144 illegalArguments.add(new Immediate32Argument(Integer.MAX_VALUE));
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145 }
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146 this.illegalTestArguments = illegalArguments;
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147 }
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148 return illegalTestArguments;
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149 }
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150
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151 public TestArgumentExclusion excludeExternalTestArguments(Argument... arguments) {
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152 return new TestArgumentExclusion(AssemblyTestComponent.EXTERNAL_ASSEMBLER, this, new HashSet<>(Arrays.asList(arguments)));
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153 }
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154
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155 @Override
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156 public ImmediateOperandField bindTo(Expression expression) {
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157 return (ImmediateOperandField) super.bindTo(expression);
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158 }
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159 }