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annotate dmd/ShlExp.d @ 192:eb38fdcb3e62 default tip

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updated to compile with dmd2.062
author korDen
date Sat, 02 Mar 2013 01:25:52 -0800
parents b0d41ff5e0df
children
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1 module dmd.ShlExp;
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2
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3 import dmd.common;
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4 import dmd.Expression;
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5 import dmd.Identifier;
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6 import dmd.backend.elem;
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7 import dmd.InterState;
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8 import dmd.Loc;
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9 import dmd.Scope;
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10 import dmd.IntRange;
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11 import dmd.IRState;
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12 import dmd.BinExp;
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13 import dmd.TOK;
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14 import dmd.Id;
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15 import dmd.Type;
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16
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17 import dmd.expression.shift_optimize;
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18 import dmd.expression.Shl;
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19 import dmd.expression.Util;
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21 import dmd.backend.OPER;
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22
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23 import dmd.DDMDExtensions;
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24
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25 class ShlExp : BinExp
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26 {
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27 mixin insertMemberExtension!(typeof(this));
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28
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29 this(Loc loc, Expression e1, Expression e2)
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30 {
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31 register();
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32 super(loc, TOK.TOKshl, ShlExp.sizeof, e1, e2);
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33 }
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34
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35 override Expression semantic(Scope sc)
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36 {
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37 Expression e;
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38
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39 //printf("ShlExp.semantic(), type = %p\n", type);
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40 if (!type)
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41 {
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42 BinExp.semanticp(sc);
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43 e = op_overload(sc);
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44
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45 if (e)
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46 return e;
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47
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48 e1 = e1.checkIntegral();
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49 e2 = e2.checkIntegral();
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50 e1 = e1.integralPromotions(sc);
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51 e2 = e2.castTo(sc, Type.tshiftcnt);
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52 type = e1.type;
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53 }
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54
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55 return this;
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56 }
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58 override Expression optimize(int result)
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59 {
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60 //printf("ShlExp::optimize(result = %d) %s\n", result, toChars());
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61 return shift_optimize(result, this, &Shl);
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62 }
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64 override Expression interpret(InterState istate)
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65 {
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66 return interpretCommon(istate, &Shl);
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67 }
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69 override IntRange getIntRange()
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70 {
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71 IntRange ir;
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72 IntRange ir1 = e1.getIntRange();
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73 IntRange ir2 = e2.getIntRange();
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74
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75 ir.imin = getMask(ir1.imin) << ir2.imin;
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76 ir.imax = getMask(ir1.imax) << ir2.imax;
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78 ir.imin &= type.sizemask();
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79 ir.imax &= type.sizemask();
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81 //printf("ShlExp: imin = x%llx, imax = x%llx\n", ir.imin, ir.imax);
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82 //e1.dump(0);
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83
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84 return ir;
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85 }
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87 override Identifier opId()
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88 {
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89 return Id.shl;
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90 }
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92 override Identifier opId_r()
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93 {
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94 return Id.shl_r;
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95 }
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97 override elem* toElem(IRState* irs)
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98 {
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99 return toElemBin(irs, OPER.OPshl);
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100 }
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101 }
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