Mercurial > hg > truffle
annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/cisc/x86/X86InstructionDescriptionVisitor.java @ 4142:bc8527f3071c
Adjust code base to new level of warnings.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sun, 18 Dec 2011 05:24:06 +0100 |
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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.gen.cisc.x86; |
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24 |
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25 import com.sun.max.asm.gen.*; |
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26 import com.sun.max.asm.gen.cisc.*; |
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27 import com.sun.max.asm.x86.*; |
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28 import com.sun.max.program.*; |
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29 |
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30 /** |
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31 * Almost like the visitor pattern. |
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32 * Specialized dispatch over InstructionDescription objects. |
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33 */ |
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34 public interface X86InstructionDescriptionVisitor { |
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35 |
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36 void visitOperandCode(OperandCode operandCode, X86Operand.Designation designation, ArgumentRange argumentRange, TestArgumentExclusion testArgumentExclusion) throws TemplateNotNeededException; |
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37 |
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38 void visitAddressingMethodCode(AddressingMethodCode addressingMethodCode, X86Operand.Designation designation) throws TemplateNotNeededException; |
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39 |
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40 void visitOperandTypeCode(OperandTypeCode operandTypeCode) throws TemplateNotNeededException; |
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41 |
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42 void visitRegisterOperandCode(RegisterOperandCode registerOperandCode, X86Operand.Designation designation, ImplicitOperand.ExternalPresence externalPresence); |
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43 |
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44 void visitGeneralRegister(GeneralRegister generalRegister, X86Operand.Designation designation, ImplicitOperand.ExternalPresence externalPresence); |
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45 |
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46 void visitSegmentRegister(SegmentRegister segmentRegister, X86Operand.Designation designation); |
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47 |
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48 void visitModRMGroup(ModRMGroup modRMGroup) throws TemplateNotNeededException; |
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49 |
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50 void visitModCase(X86TemplateContext.ModCase modCase) throws TemplateNotNeededException; |
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51 |
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52 void visitFloatingPointOperandCode(FloatingPointOperandCode floatingPointOperandCode, X86Operand.Designation designation, TestArgumentExclusion testArgumentExclusion) throws TemplateNotNeededException; |
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53 |
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54 void visitFPStackRegister(FPStackRegister fpStackRegister, X86Operand.Designation designation); |
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55 |
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56 void visitString(String string); |
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57 |
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58 void visitInteger(Integer integer, X86Operand.Designation designation); |
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59 |
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60 void visitHexByte(HexByte hexByte) throws TemplateNotNeededException; |
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61 |
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62 void visitInstructionConstraint(InstructionConstraint constraint); |
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63 |
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64 public static final class Static { |
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65 private Static() { |
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66 } |
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67 |
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68 /** |
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69 * @return whether the specification constitutes an operand |
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70 * @throws TemplateNotNeededException |
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71 */ |
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72 private static boolean visitSpecification(X86InstructionDescriptionVisitor visitor, Object specification, |
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73 final X86Operand.Designation designation, ArgumentRange argumentRange, |
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74 final TestArgumentExclusion testArgumentExclusion, ImplicitOperand.ExternalPresence externalPresence) throws TemplateNotNeededException { |
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75 if (specification instanceof OperandCode) { |
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76 visitor.visitOperandCode((OperandCode) specification, designation, argumentRange, testArgumentExclusion); |
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77 return true; |
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78 } else if (specification instanceof AddressingMethodCode) { |
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79 visitor.visitAddressingMethodCode((AddressingMethodCode) specification, designation); |
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80 return true; |
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81 } else if (specification instanceof OperandTypeCode) { |
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82 visitor.visitOperandTypeCode((OperandTypeCode) specification); |
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83 return false; |
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84 } else if (specification instanceof RegisterOperandCode) { |
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85 visitor.visitRegisterOperandCode((RegisterOperandCode) specification, designation, externalPresence); |
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86 return true; |
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87 } else if (specification instanceof GeneralRegister) { |
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88 visitor.visitGeneralRegister((GeneralRegister) specification, designation, externalPresence); |
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89 return true; |
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90 } else if (specification instanceof SegmentRegister) { |
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91 visitor.visitSegmentRegister((SegmentRegister) specification, designation); |
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92 return true; |
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93 } else if (specification instanceof ModRMGroup) { |
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94 visitor.visitModRMGroup((ModRMGroup) specification); |
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95 return false; |
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96 } else if (specification instanceof X86TemplateContext.ModCase) { |
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97 visitor.visitModCase((X86TemplateContext.ModCase) specification); |
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98 return false; |
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99 } else if (specification instanceof FloatingPointOperandCode) { |
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100 visitor.visitFloatingPointOperandCode((FloatingPointOperandCode) specification, designation, testArgumentExclusion); |
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101 return true; |
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102 } else if (specification instanceof FPStackRegister) { |
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103 visitor.visitFPStackRegister((FPStackRegister) specification, designation); |
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104 return true; |
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105 } else if (specification instanceof String) { |
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106 visitor.visitString((String) specification); |
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107 return false; |
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108 } else if (specification instanceof Integer) { |
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109 visitor.visitInteger((Integer) specification, designation); |
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110 return true; |
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111 } else if (specification instanceof ArgumentRange) { |
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112 final ArgumentRange newArgumentRange = (ArgumentRange) specification; |
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113 return visitSpecification(visitor, newArgumentRange.wrappedSpecification(), designation, newArgumentRange, testArgumentExclusion, externalPresence); |
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114 } else if (specification instanceof HexByte) { |
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115 visitor.visitHexByte((HexByte) specification); |
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116 return false; |
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117 } else if (specification instanceof TestArgumentExclusion) { |
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118 final TestArgumentExclusion exclusion = (TestArgumentExclusion) specification; |
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119 return visitSpecification(visitor, exclusion.wrappedSpecification(), designation, argumentRange, exclusion, externalPresence); |
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120 } else if (specification instanceof ExternalOmission) { |
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121 final ExternalOmission omission = (ExternalOmission) specification; |
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122 return visitSpecification(visitor, omission.wrappedSpecification(), designation, argumentRange, testArgumentExclusion, ImplicitOperand.ExternalPresence.OMITTED); |
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123 } else { |
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124 throw ProgramError.unexpected("unknown instruction description specification: " + specification); |
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125 } |
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126 } |
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127 |
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128 /** |
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129 * @return whether this instruction description is to be used to create a template in the given context |
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130 */ |
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131 public static boolean visitInstructionDescription(X86InstructionDescriptionVisitor visitor, InstructionDescription instructionDescription) { |
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132 try { |
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133 int designationIndex = 0; |
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134 for (Object specification : instructionDescription) { |
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135 final X86Operand.Designation designation = X86Operand.Designation.VALUES.get(designationIndex); |
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136 if (visitSpecification(visitor, specification, designation, ArgumentRange.UNSPECIFIED, TestArgumentExclusion.NONE, ImplicitOperand.ExternalPresence.EXPLICIT)) { |
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137 designationIndex++; |
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138 } |
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139 } |
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140 return true; |
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141 } catch (TemplateNotNeededException templateNotNeededException) { |
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142 return false; |
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143 } |
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144 } |
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145 } |
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146 } |