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72
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1 module dmd.OrExp;
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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.Type;
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8 import dmd.OutBuffer;
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9 import dmd.Loc;
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10 import dmd.Scope;
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11 import dmd.IntRange;
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12 import dmd.IRState;
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13 import dmd.ArrayTypes;
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14 import dmd.BinExp;
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0
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15 import dmd.TOK;
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16 import dmd.TY;
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72
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17 import dmd.Id;
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18
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0
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19 import dmd.backend.elem;
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20 import dmd.backend.OPER;
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21
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72
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22 import dmd.expression.Or;
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23
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0
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24 class OrExp : BinExp
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25 {
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26 this(Loc loc, Expression e1, Expression e2)
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27 {
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28 super(loc, TOK.TOKor, OrExp.sizeof, e1, e2);
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29 }
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30
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72
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31 override Expression semantic(Scope sc)
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32 {
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33 Expression e;
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34
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35 if (!type)
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36 {
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37 BinExp.semanticp(sc);
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38 e = op_overload(sc);
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39
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40 if (e)
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41 return e;
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42
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43 if (e1.type.toBasetype().ty == TY.Tbool && e2.type.toBasetype().ty == TY.Tbool)
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44 {
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45 type = e1.type;
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46 e = this;
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47 }
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48 else
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49 {
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50 typeCombine(sc);
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109
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51 if (!e1.isArrayOperand())
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0
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52 e1.checkIntegral();
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109
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53 if (!e2.isArrayOperand())
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54 e2.checkIntegral();
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55 }
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56 }
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57
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58 return this;
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59 }
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60
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61 override Expression optimize(int result)
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62 {
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63 Expression e;
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64
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65 e1 = e1.optimize(result);
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66 e2 = e2.optimize(result);
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67
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68 if (e1.isConst() == 1 && e2.isConst() == 1)
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69 e = Or(type, e1, e2);
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70 else
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71 e = this;
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72
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73 return e;
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74 }
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75
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76 override Expression interpret(InterState istate)
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0
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77 {
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78 assert(false);
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79 }
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80
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72
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81 override void buildArrayIdent(OutBuffer buf, Expressions arguments)
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82 {
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83 assert(false);
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84 }
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85
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86 override Expression buildArrayLoop(Arguments fparams)
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87 {
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88 assert(false);
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89 }
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90
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72
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91 override MATCH implicitConvTo(Type t)
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92 {
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93 MATCH result = Expression.implicitConvTo(t);
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94
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95 if (result == MATCH.MATCHnomatch)
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96 {
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97 MATCH m1 = e1.implicitConvTo(t);
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98 MATCH m2 = e2.implicitConvTo(t);
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99
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100 // Pick the worst match
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101 result = (m1 < m2) ? m1 : m2;
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102 }
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103
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104 return result;
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105 }
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106
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107 override IntRange getIntRange()
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108 {
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109 IntRange ir;
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110 IntRange ir1 = e1.getIntRange();
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111 IntRange ir2 = e2.getIntRange();
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112
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113 ir.imin = ir1.imin;
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114 if (ir2.imin < ir.imin)
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115 ir.imin = ir2.imin;
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116
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117 ir.imax = ir1.imax;
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118 if (ir2.imax > ir.imax)
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119 ir.imax = ir2.imax;
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120
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121 ir.imin &= type.sizemask();
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122 ir.imax &= type.sizemask();
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123
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124 //printf("OrExp: imin = x%llx, imax = x%llx\n", ir.imin, ir.imax);
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125 //e1.dump(0);
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126
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53
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127 return ir;
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0
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128 }
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129
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72
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130 override bool isCommutative()
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131 {
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132 return true;
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133 }
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134
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135 override Identifier opId()
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136 {
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137 return Id.ior;
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138 }
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139
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140 override Identifier opId_r()
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141 {
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142 return Id.ior_r;
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143 }
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144
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145 override elem* toElem(IRState* irs)
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146 {
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147 return toElemBin(irs, OPER.OPor);
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148 }
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149 }
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150
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