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annotate gen/dvalue.h @ 143:336ec4f4bbb3 trunk

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[svn r147] tango.io.Console is now working. True this time :) Yay!
author lindquist
date Fri, 25 Jan 2008 01:42:36 +0100
parents 3efbcc81ba45
children 7816aafeea3c
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1 #ifndef LLVMDC_GEN_DVALUE_H
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2 #define LLVMDC_GEN_DVALUE_H
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3
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4 /*
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5 These classes are used for generating the IR. They encapsulate D values and
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6 provide a common interface to the most common operations. When more specialized
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7 handling is necessary, they hold enough information to do-the-right-thing (TM)
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8 */
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9
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10 #include <cassert>
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11 #include "root.h"
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12
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13 struct Type;
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14 struct Dsymbol;
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15 struct VarDeclaration;
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16 struct FuncDeclaration;
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17
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18 namespace llvm
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19 {
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20 class Value;
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21 class Type;
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22 class Constant;
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23 }
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24
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25 struct DImValue;
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26 struct DConstValue;
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27 struct DNullValue;
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28 struct DVarValue;
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29 struct DFieldValue;
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30 struct DThisValue;
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31 struct DFuncValue;
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32 struct DSliceValue;
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33 struct DArrayLenValue;
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34 struct DLRValue;
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35 struct DComplexValue;
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36
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37 // base class for d-values
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38 struct DValue : Object
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39 {
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40 virtual Type* getType() = 0;
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41
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42 virtual llvm::Value* getLVal() { assert(0); return 0; }
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43 virtual llvm::Value* getRVal() { assert(0); return 0; }
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44
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45 virtual DImValue* isIm() { return NULL; }
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46 virtual DConstValue* isConst() { return NULL; }
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47 virtual DNullValue* isNull() { return NULL; }
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48 virtual DVarValue* isVar() { return NULL; }
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49 virtual DFieldValue* isField() { return NULL; }
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50 virtual DThisValue* isThis() { return NULL; }
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51 virtual DSliceValue* isSlice() { return NULL; }
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52 virtual DFuncValue* isFunc() { return NULL; }
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53 virtual DArrayLenValue* isArrayLen() { return NULL; }
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54 virtual DComplexValue* isComplex() { return NULL; }
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55 virtual DLRValue* isLRValue() { return NULL; }
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56
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57 virtual bool inPlace() { return false; }
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58
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59 protected:
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60 DValue() {}
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61 DValue(const DValue&) { }
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62 DValue& operator=(const DValue&) { return *this; }
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63 };
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64
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65 // immediate d-value
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66 struct DImValue : DValue
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67 {
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68 Type* type;
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69 llvm::Value* val;
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70 bool inplace;
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71
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72 DImValue(Type* t, llvm::Value* v, bool in_place = false) { type = t; val = v; inplace = in_place; }
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73
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74 virtual llvm::Value* getRVal() { assert(val); return val; }
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75
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76 virtual Type* getType() { assert(type); return type; }
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77 virtual DImValue* isIm() { return this; }
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78
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79 virtual bool inPlace() { return inplace; }
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80 };
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81
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82 // constant d-value
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83 struct DConstValue : DValue
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84 {
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85 Type* type;
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86 llvm::Constant* c;
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87
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88 DConstValue(Type* t, llvm::Constant* con) { type = t; c = con; }
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89
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90 virtual llvm::Value* getRVal();
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91
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92 virtual Type* getType() { assert(type); return type; }
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93 virtual DConstValue* isConst() { return this; }
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94 };
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95
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96 // null d-value
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97 struct DNullValue : DConstValue
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98 {
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99 DNullValue(Type* t, llvm::Constant* con) : DConstValue(t,con) {}
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100 virtual DNullValue* isNull() { return this; }
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101 };
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102
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103 // variable d-value
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104 struct DVarValue : DValue
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105 {
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106 Type* type;
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107 VarDeclaration* var;
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108 llvm::Value* val;
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109 llvm::Value* rval;
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110 bool lval;
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111
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112 DVarValue(VarDeclaration* vd, llvm::Value* llvmValue, bool lvalue);
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113 DVarValue(Type* vd, llvm::Value* lv, llvm::Value* rv);
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114 DVarValue(Type* t, llvm::Value* llvmValue, bool lvalue);
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115
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116 virtual llvm::Value* getLVal();
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117 virtual llvm::Value* getRVal();
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118
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119 virtual Type* getType() { assert(type); return type; }
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120 virtual DVarValue* isVar() { return this; }
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121 };
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122
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123 // field d-value
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124 struct DFieldValue : DVarValue
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125 {
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126 DFieldValue(Type* t, llvm::Value* llvmValue, bool l) : DVarValue(t, llvmValue, l) {}
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127 virtual DFieldValue* isField() { return this; }
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128 };
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129
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130 // this d-value
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131 struct DThisValue : DVarValue
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132 {
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133 DThisValue(VarDeclaration* vd, llvm::Value* llvmValue) : DVarValue(vd, llvmValue, true) {}
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134 virtual DThisValue* isThis() { return this; }
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135 };
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136
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137 // array length d-value
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138 struct DArrayLenValue : DVarValue
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139 {
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140 DArrayLenValue(Type* t, llvm::Value* llvmValue) : DVarValue(t, llvmValue, true) {}
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141 virtual DArrayLenValue* isArrayLen() { return this; }
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142 };
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143
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144 // slice d-value
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145 struct DSliceValue : DValue
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146 {
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147 Type* type;
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148 llvm::Value* len;
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149 llvm::Value* ptr;
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150
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151 DSliceValue(Type* t, llvm::Value* l, llvm::Value* p) { type=t; ptr=p; len=l; }
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152
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153 virtual Type* getType() { assert(type); return type; }
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154 virtual DSliceValue* isSlice() { return this; }
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155 };
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156
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157 // function d-value
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158 struct DFuncValue : DValue
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159 {
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160 Type* type;
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161 FuncDeclaration* func;
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162 llvm::Value* val;
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163 llvm::Value* vthis;
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164 unsigned cc;
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165
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166 DFuncValue(FuncDeclaration* fd, llvm::Value* v, llvm::Value* vt = 0);
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167
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168 virtual llvm::Value* getLVal();
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169 virtual llvm::Value* getRVal();
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170
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171 virtual Type* getType() { assert(type); return type; }
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172 virtual DFuncValue* isFunc() { return this; }
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173 };
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174
107
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175 // l-value and r-value pair d-value
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176 struct DLRValue : DValue
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177 {
107
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178 Type* ltype;
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179 llvm::Value* lval;
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180 Type* rtype;
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181 llvm::Value* rval;
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182
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183 DLRValue(Type* lt, llvm::Value* l, Type* rt, llvm::Value* r) {
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184 ltype = lt;
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185 lval = l;
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186 rtype = rt;
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187 rval = r;
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188 }
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189
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190 virtual llvm::Value* getLVal() { assert(lval); return lval; }
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191 virtual llvm::Value* getRVal() { assert(rval); return rval; }
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192
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193 Type* getLType() { return ltype; }
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194 Type* getRType() { return rtype; }
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195 virtual Type* getType() { return getRType(); }
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196 virtual DLRValue* isLRValue() { return this; }
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197 };
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198
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199 // complex number immediate d-value (much like slice)
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200 struct DComplexValue : DValue
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201 {
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202 Type* type;
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203 llvm::Value* re;
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204 llvm::Value* im;
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205
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206 DComplexValue(Type* t, llvm::Value* r, llvm::Value* i) {
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207 type = t;
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208 re = r;
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209 im = i;
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210 }
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211
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212 virtual Type* getType() { assert(type); return type; }
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213 virtual DComplexValue* isComplex() { return this; }
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214 };
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215
88
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216 #endif // LLVMDC_GEN_DVALUE_H