|
72
|
1 module dmd.RealExp;
|
|
|
2
|
|
|
3 import dmd.Expression;
|
|
|
4 import dmd.backend.elem;
|
|
|
5 import dmd.InterState;
|
|
|
6 import dmd.Type;
|
|
|
7 import dmd.OutBuffer;
|
|
|
8 import dmd.Loc;
|
|
|
9 import dmd.TOK;
|
|
|
10 import dmd.Scope;
|
|
0
|
11 import dmd.IRState;
|
|
72
|
12 import dmd.Type;
|
|
0
|
13 import dmd.HdrGenState;
|
|
|
14 import dmd.Port;
|
|
|
15 import dmd.TY;
|
|
72
|
16
|
|
0
|
17 import dmd.backend.dt_t;
|
|
|
18 import dmd.backend.Util;
|
|
|
19 import dmd.backend.TYM;
|
|
|
20 import dmd.backend.mTY;
|
|
|
21
|
|
72
|
22 import dmd.Complex;
|
|
|
23
|
|
73
|
24 import std.stdio;
|
|
|
25
|
|
0
|
26 class RealExp : Expression
|
|
|
27 {
|
|
|
28 real value;
|
|
|
29
|
|
|
30 this(Loc loc, real value, Type type)
|
|
|
31 {
|
|
|
32 super(loc, TOK.TOKfloat64, RealExp.sizeof);
|
|
|
33 //printf("RealExp.RealExp(%Lg)\n", value);
|
|
|
34 this.value = value;
|
|
|
35 this.type = type;
|
|
|
36 }
|
|
|
37
|
|
72
|
38 override bool equals(Object o)
|
|
0
|
39 {
|
|
|
40 assert(false);
|
|
|
41 }
|
|
|
42
|
|
72
|
43 override Expression semantic(Scope sc)
|
|
0
|
44 {
|
|
|
45 if (!type)
|
|
|
46 type = Type.tfloat64;
|
|
|
47 else
|
|
|
48 type = type.semantic(loc, sc);
|
|
|
49 return this;
|
|
|
50 }
|
|
|
51
|
|
72
|
52 override Expression interpret(InterState istate)
|
|
0
|
53 {
|
|
|
54 assert(false);
|
|
|
55 }
|
|
|
56
|
|
72
|
57 override string toChars()
|
|
0
|
58 {
|
|
|
59 assert(false);
|
|
|
60 }
|
|
|
61
|
|
72
|
62 override ulong toInteger()
|
|
0
|
63 {
|
|
|
64 assert(false);
|
|
|
65 }
|
|
|
66
|
|
72
|
67 override ulong toUInteger()
|
|
0
|
68 {
|
|
|
69 assert(false);
|
|
|
70 }
|
|
|
71
|
|
72
|
72 override real toReal()
|
|
0
|
73 {
|
|
|
74 return type.isreal() ? value : 0;
|
|
|
75 }
|
|
|
76
|
|
72
|
77 override real toImaginary()
|
|
0
|
78 {
|
|
|
79 return type.isreal() ? 0 : value;
|
|
|
80 }
|
|
|
81
|
|
72
|
82 override Complex!(real) toComplex()
|
|
0
|
83 {
|
|
|
84 return Complex!(real)(toReal(), toImaginary());
|
|
|
85 }
|
|
|
86
|
|
72
|
87 override Expression castTo(Scope sc, Type t)
|
|
0
|
88 {
|
|
|
89 Expression e = this;
|
|
|
90 if (type != t)
|
|
|
91 {
|
|
|
92 if ((type.isreal() && t.isreal()) ||
|
|
|
93 (type.isimaginary() && t.isimaginary())
|
|
|
94 )
|
|
|
95 {
|
|
|
96 e = copy();
|
|
|
97 e.type = t;
|
|
|
98 }
|
|
|
99 else
|
|
|
100 e = Expression.castTo(sc, t);
|
|
|
101 }
|
|
|
102 return e;
|
|
|
103 }
|
|
|
104
|
|
72
|
105 override int isConst()
|
|
0
|
106 {
|
|
|
107 return 1;
|
|
|
108 }
|
|
|
109
|
|
72
|
110 override bool isBool(bool result)
|
|
0
|
111 {
|
|
|
112 assert(false);
|
|
|
113 }
|
|
|
114
|
|
72
|
115 override void toCBuffer(OutBuffer buf, HdrGenState* hgs)
|
|
0
|
116 {
|
|
|
117 assert(false);
|
|
|
118 }
|
|
|
119
|
|
72
|
120 override void toMangleBuffer(OutBuffer buf)
|
|
0
|
121 {
|
|
|
122 assert(false);
|
|
|
123 }
|
|
|
124
|
|
72
|
125 override elem* toElem(IRState* irs)
|
|
0
|
126 {
|
|
|
127 eve c;
|
|
|
128 tym_t ty;
|
|
|
129
|
|
|
130 //printf("RealExp.toElem(%p) %s\n", this, toChars());
|
|
|
131 ///memset(&c, 0, sizeof(c));
|
|
|
132 ty = type.toBasetype().totym();
|
|
|
133 switch (tybasic(ty))
|
|
|
134 {
|
|
|
135 case TYfloat:
|
|
|
136 case TYifloat:
|
|
|
137 c.Vfloat = value;
|
|
|
138 if (Port.isSignallingNan(value)) {
|
|
|
139 std.stdio.writeln("signalling float");
|
|
|
140 (cast(uint*)&c.Vfloat)[0] &= 0xFFBFFFFFL;
|
|
|
141 }
|
|
|
142 break;
|
|
|
143
|
|
|
144 case TYdouble:
|
|
|
145 case TYidouble:
|
|
|
146 c.Vdouble = value; // unfortunately, this converts SNAN to QNAN
|
|
|
147 if (Port.isSignallingNan(value)) {
|
|
|
148 std.stdio.writeln("signalling double");
|
|
|
149 // Put SNAN back
|
|
|
150 (cast(uint*)&c.Vdouble)[1] &= 0xFFF7FFFFL;
|
|
|
151 }
|
|
|
152 break;
|
|
|
153
|
|
|
154 case TYldouble:
|
|
|
155 case TYildouble:
|
|
|
156 c.Vldouble = value;
|
|
|
157 break;
|
|
|
158
|
|
|
159 default:
|
|
|
160 print();
|
|
|
161 ///type.print();
|
|
|
162 ///type.toBasetype().print();
|
|
73
|
163 printf("ty = %d, tym = %lx\n", type.ty, ty);
|
|
0
|
164 assert(0);
|
|
|
165 }
|
|
|
166 return el_const(ty, &c);
|
|
|
167 }
|
|
|
168
|
|
|
169 static private char[6] zeropad;
|
|
|
170
|
|
72
|
171 override dt_t** toDt(dt_t** pdt)
|
|
0
|
172 {
|
|
|
173 float fvalue;
|
|
|
174 double dvalue;
|
|
|
175 real evalue;
|
|
|
176
|
|
|
177 //printf("RealExp.toDt(%Lg)\n", value);
|
|
|
178 switch (type.toBasetype().ty)
|
|
|
179 {
|
|
|
180 case Tfloat32:
|
|
|
181 case Timaginary32:
|
|
|
182 fvalue = value;
|
|
|
183 pdt = dtnbytes(pdt,4,cast(char*)&fvalue);
|
|
|
184 break;
|
|
|
185
|
|
|
186 case Tfloat64:
|
|
|
187 case Timaginary64:
|
|
|
188 dvalue = value;
|
|
|
189 pdt = dtnbytes(pdt,8,cast(char*)&dvalue);
|
|
|
190 break;
|
|
|
191
|
|
|
192 case Tfloat80:
|
|
|
193 case Timaginary80:
|
|
|
194 evalue = value;
|
|
|
195 pdt = dtnbytes(pdt,REALSIZE - REALPAD,cast(char*)&evalue);
|
|
|
196 pdt = dtnbytes(pdt,REALPAD,zeropad.ptr);
|
|
|
197 assert(REALPAD <= zeropad.sizeof);
|
|
|
198 break;
|
|
|
199
|
|
|
200 default:
|
|
|
201 writef("%s\n", toChars());
|
|
|
202 ///type.print();
|
|
|
203 assert(0);
|
|
|
204 break;
|
|
|
205 }
|
|
|
206 return pdt;
|
|
|
207 }
|
|
|
208 }
|
|
|
209
|
