Mercurial > projects > ddmd
annotate dmd/MulExp.d @ 115:6caaf0256da1
+ interpretation of (non-assign) binary expressions
+ BinExp.isunsigned
+ EqualExp.isBit
| author | Trass3r |
|---|---|
| date | Thu, 02 Sep 2010 01:29:29 +0200 |
| parents | e28b18c23469 |
| children | 9e39c7de8438 |
| rev | line source |
|---|---|
| 72 | 1 module dmd.MulExp; |
| 2 | |
| 114 | 3 import dmd.common; |
| 72 | 4 import dmd.Expression; |
| 5 import dmd.Identifier; | |
| 6 import dmd.backend.elem; | |
| 7 import dmd.InterState; | |
| 0 | 8 import dmd.OutBuffer; |
| 72 | 9 import dmd.NegExp; |
| 10 import dmd.Loc; | |
| 0 | 11 import dmd.Id; |
| 72 | 12 import dmd.Scope; |
| 13 import dmd.IRState; | |
| 14 import dmd.BinExp; | |
| 15 import dmd.ArrayTypes; | |
| 0 | 16 import dmd.TOK; |
| 17 import dmd.Type; | |
| 18 import dmd.TY; | |
| 19 | |
| 20 import dmd.expression.Util; | |
| 21 import dmd.expression.Mul; | |
| 22 import dmd.backend.OPER; | |
| 72 | 23 import dmd.backend.Util; |
| 24 | |
| 0 | 25 class MulExp : BinExp |
| 26 { | |
| 27 this(Loc loc, Expression e1, Expression e2) | |
| 72 | 28 { |
| 0 | 29 super(loc, TOK.TOKmul, MulExp.sizeof, e1, e2); |
| 30 } | |
| 31 | |
| 72 | 32 override Expression semantic(Scope sc) |
| 0 | 33 { |
| 34 Expression e; | |
| 35 | |
| 36 static if (false) { | |
| 37 printf("MulExp.semantic() %s\n", toChars()); | |
| 38 } | |
| 39 if (type) | |
| 40 { | |
| 41 return this; | |
| 42 } | |
| 43 | |
| 44 BinExp.semanticp(sc); | |
| 45 e = op_overload(sc); | |
| 46 if (e) | |
| 47 return e; | |
| 48 | |
| 49 typeCombine(sc); | |
| 109 | 50 if (!e1.isArrayOperand()) |
| 0 | 51 e1.checkArithmetic(); |
| 109 | 52 if (!e2.isArrayOperand()) |
| 0 | 53 e2.checkArithmetic(); |
| 109 | 54 |
| 0 | 55 if (type.isfloating()) |
| 56 { | |
| 57 Type t1 = e1.type; | |
| 58 Type t2 = e2.type; | |
| 59 | |
| 60 if (t1.isreal()) | |
| 61 { | |
| 62 type = t2; | |
| 63 } | |
| 64 else if (t2.isreal()) | |
| 65 { | |
| 66 type = t1; | |
| 67 } | |
| 68 else if (t1.isimaginary()) | |
| 69 { | |
| 70 if (t2.isimaginary()) | |
| 71 { | |
| 72 switch (t1.ty) | |
| 73 { | |
| 74 case Timaginary32: type = Type.tfloat32; break; | |
| 75 case Timaginary64: type = Type.tfloat64; break; | |
| 76 case Timaginary80: type = Type.tfloat80; break; | |
| 77 default: assert(0); | |
| 78 } | |
| 79 | |
| 80 // iy * iv = -yv | |
| 81 e1.type = type; | |
| 82 e2.type = type; | |
| 83 Expression ee = new NegExp(loc, this); | |
| 84 ee = ee.semantic(sc); | |
| 85 return ee; | |
| 86 } | |
| 87 else | |
| 88 type = t2; // t2 is complex | |
| 89 } | |
| 90 else if (t2.isimaginary()) | |
| 91 { | |
| 92 type = t1; // t1 is complex | |
| 93 } | |
| 94 } | |
| 95 return this; | |
| 96 } | |
| 97 | |
| 72 | 98 override Expression optimize(int result) |
| 0 | 99 { |
| 100 Expression e; | |
| 101 | |
| 102 //printf("MulExp.optimize(result = %d) %s\n", result, toChars()); | |
| 103 e1 = e1.optimize(result); | |
| 104 e2 = e2.optimize(result); | |
| 105 if (e1.isConst() == 1 && e2.isConst() == 1) | |
| 106 { | |
| 107 e = Mul(type, e1, e2); | |
| 108 } | |
| 109 else | |
| 110 e = this; | |
| 111 return e; | |
| 112 } | |
| 113 | |
| 72 | 114 override Expression interpret(InterState istate) |
| 0 | 115 { |
|
115
6caaf0256da1
+ interpretation of (non-assign) binary expressions
Trass3r
parents:
114
diff
changeset
|
116 return interpretCommon(istate, &Mul); |
| 0 | 117 } |
| 118 | |
| 72 | 119 override void buildArrayIdent(OutBuffer buf, Expressions arguments) |
| 0 | 120 { |
|
12
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
121 Exp_buildArrayIdent(buf, arguments, "Mul"); |
| 0 | 122 } |
| 123 | |
| 72 | 124 override Expression buildArrayLoop(Arguments fparams) |
| 0 | 125 { |
| 72 | 126 /* Evaluate assign expressions left to right |
| 127 */ | |
| 128 Expression ex1 = e1.buildArrayLoop(fparams); | |
| 129 Expression ex2 = e2.buildArrayLoop(fparams); | |
| 130 Expression e = new MulExp(Loc(0), ex1, ex2); | |
|
12
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
131 return e; |
| 0 | 132 } |
| 133 | |
| 72 | 134 override bool isCommutative() |
| 0 | 135 { |
| 136 return true; | |
| 137 } | |
| 138 | |
| 72 | 139 override Identifier opId() |
| 0 | 140 { |
| 141 return Id.mul; | |
| 142 } | |
| 143 | |
| 72 | 144 override Identifier opId_r() |
| 0 | 145 { |
| 146 return Id.mul_r; | |
| 147 } | |
| 148 | |
| 72 | 149 override elem* toElem(IRState* irs) |
| 0 | 150 { |
| 151 return toElemBin(irs,OPmul); | |
| 152 } | |
| 153 } | |
| 154 |