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1 module dmd.XorExp;
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2
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3 import dmd.Expression;
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4 import dmd.Identifier;
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5 import dmd.InterState;
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6 import dmd.MATCH;
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7 import dmd.Id;
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8 import dmd.Type;
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9 import dmd.OutBuffer;
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10 import dmd.Loc;
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11 import dmd.Scope;
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12 import dmd.IntRange;
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13 import dmd.IRState;
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14 import dmd.ArrayTypes;
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15 import dmd.BinExp;
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16 import dmd.TOK;
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17 import dmd.TY;
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18
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19 import dmd.backend.elem;
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20 import dmd.expression.Util;
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21 import dmd.expression.Xor;
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22
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23 class XorExp : BinExp
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24 {
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25 this(Loc loc, Expression e1, Expression e2)
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26 {
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27 super(loc, TOK.TOKxor, XorExp.sizeof, e1, e2);
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28 }
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29
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30 Expression semantic(Scope sc)
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31 {
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32 Expression e;
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33
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34 if (!type)
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35 {
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36 BinExp.semanticp(sc);
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37 e = op_overload(sc);
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38 if (e)
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39 return e;
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40 if (e1.type.toBasetype().ty == Tbool &&
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41 e2.type.toBasetype().ty == Tbool)
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42 {
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43 type = e1.type;
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44 e = this;
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45 }
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46 else
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47 {
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48 typeCombine(sc);
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49 if (e1.op != TOKslice && e2.op != TOKslice)
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50 {
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51 e1.checkIntegral();
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52 e2.checkIntegral();
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53 }
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54 }
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55 }
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56 return this;
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57 }
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58
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59 Expression optimize(int result)
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60 {
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61 Expression e;
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62
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63 e1 = e1.optimize(result);
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64 e2 = e2.optimize(result);
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65 if (e1.isConst() == 1 && e2.isConst() == 1)
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66 e = Xor(type, e1, e2);
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67 else
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68 e = this;
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69
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70 return e;
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71 }
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72
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73 Expression interpret(InterState* istate)
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74 {
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75 assert(false);
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76 }
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77
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78 void buildArrayIdent(OutBuffer buf, Expressions arguments)
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79 {
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80 assert(false);
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81 }
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82
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83 Expression buildArrayLoop(Arguments fparams)
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84 {
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85 assert(false);
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86 }
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87
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88 MATCH implicitConvTo(Type t)
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89 {
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90 assert(false);
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91 }
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92
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93 IntRange getIntRange()
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94 {
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95 assert(false);
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96 }
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97
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98 bool isCommutative()
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99 {
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100 return true;
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101 }
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102
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103 Identifier opId()
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104 {
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105 return Id.ixor;
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106 }
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107
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108 Identifier opId_r()
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109 {
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110 return Id.ixor_r;
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111 }
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112
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113 elem* toElem(IRState* irs)
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114 {
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115 assert(false);
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116 }
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117 }
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118
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