1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
|
//===- Record.cpp - Record implementation ---------------------------------===//
//
//
//===----------------------------------------------------------------------===//
#include "Record.h"
//===----------------------------------------------------------------------===//
// Type implementations
//===----------------------------------------------------------------------===//
void RecTy::dump() const { print(std::cerr); }
Init *BitRecTy::convertValue(BitsInit *BI) {
if (BI->getNumBits() != 1) return 0; // Only accept if just one bit!
return BI->getBit(0);
}
Init *BitRecTy::convertValue(IntInit *II) {
int Val = II->getValue();
if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit!
delete II;
return new BitInit(Val != 0);
}
Init *BitRecTy::convertValue(VarInit *VI) {
if (dynamic_cast<BitRecTy*>(VI->getType()))
return VI; // Accept variable if it is already of bit type!
return 0;
}
Init *BitsRecTy::convertValue(UnsetInit *UI) {
BitsInit *Ret = new BitsInit(Size);
for (unsigned i = 0; i != Size; ++i)
Ret->setBit(i, new UnsetInit());
return Ret;
}
Init *BitsRecTy::convertValue(BitInit *UI) {
if (Size != 1) return 0; // Can only convert single bit...
BitsInit *Ret = new BitsInit(1);
Ret->setBit(0, UI);
return Ret;
}
// convertValue from Int initializer to bits type: Split the integer up into the
// appropriate bits...
//
Init *BitsRecTy::convertValue(IntInit *II) {
int Value = II->getValue();
delete II;
BitsInit *Ret = new BitsInit(Size);
for (unsigned i = 0; i != Size; ++i)
Ret->setBit(i, new BitInit(Value & (1 << i)));
return Ret;
}
Init *BitsRecTy::convertValue(BitsInit *BI) {
// If the number of bits is right, return it. Otherwise we need to expand or
// truncate...
if (BI->getNumBits() == Size) return BI;
return 0;
}
Init *BitsRecTy::convertValue(VarInit *VI) {
if (BitsRecTy *BRT = dynamic_cast<BitsRecTy*>(VI->getType()))
if (BRT->Size == Size) {
BitsInit *Ret = new BitsInit(Size);
for (unsigned i = 0; i != Size; ++i)
Ret->setBit(i, new VarBitInit(VI, i));
return Ret;
}
if (Size == 1 && dynamic_cast<BitRecTy*>(VI->getType())) {
BitsInit *Ret = new BitsInit(1);
Ret->setBit(0, VI);
return Ret;
}
return 0;
}
Init *BitsRecTy::convertValue(FieldInit *VI) {
return 0;
}
Init *IntRecTy::convertValue(BitsInit *BI) {
int Result = 0;
for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
if (BitInit *Bit = dynamic_cast<BitInit*>(BI->getBit(i))) {
Result |= Bit->getValue() << i;
} else {
return 0;
}
return new IntInit(Result);
}
Init *IntRecTy::convertValue(VarInit *VI) {
if (dynamic_cast<IntRecTy*>(VI->getType()))
return VI; // Accept variable if already of the right type!
return 0;
}
Init *StringRecTy::convertValue(VarInit *VI) {
if (dynamic_cast<StringRecTy*>(VI->getType()))
return VI; // Accept variable if already of the right type!
return 0;
}
void ListRecTy::print(std::ostream &OS) const {
OS << "list<" << Class->getName() << ">";
}
Init *ListRecTy::convertValue(ListInit *LI) {
// Verify that all of the elements of the list are subclasses of the
// appopriate class!
for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
if (!LI->getElement(i)->isSubClassOf(Class))
return 0;
return LI;
}
void RecordRecTy::print(std::ostream &OS) const {
OS << Rec->getName();
}
Init *RecordRecTy::convertValue(DefInit *DI) {
// Ensure that DI is a subclass of Rec.
if (!DI->getDef()->isSubClassOf(Rec))
return 0;
return DI;
}
//===----------------------------------------------------------------------===//
// Initializer implementations
//===----------------------------------------------------------------------===//
void Init::dump() const { return print(std::cerr); }
Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
BitsInit *BI = new BitsInit(Bits.size());
for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
if (Bits[i] >= getNumBits()) {
delete BI;
return 0;
}
BI->setBit(i, getBit(Bits[i]));
}
return BI;
}
void BitsInit::print(std::ostream &OS) const {
//if (!printInHex(OS)) return;
if (!printAsVariable(OS)) return;
if (!printAsUnset(OS)) return;
OS << "{ ";
for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
if (i) OS << ", ";
getBit(e-i-1)->print(OS);
}
OS << " }";
}
bool BitsInit::printInHex(std::ostream &OS) const {
// First, attempt to convert the value into an integer value...
int Result = 0;
for (unsigned i = 0, e = getNumBits(); i != e; ++i)
if (BitInit *Bit = dynamic_cast<BitInit*>(getBit(i))) {
Result |= Bit->getValue() << i;
} else {
return true;
}
OS << "0x" << std::hex << Result << std::dec;
return false;
}
bool BitsInit::printAsVariable(std::ostream &OS) const {
// Get the variable that we may be set equal to...
assert(getNumBits() != 0);
VarBitInit *FirstBit = dynamic_cast<VarBitInit*>(getBit(0));
if (FirstBit == 0) return true;
TypedInit *Var = FirstBit->getVariable();
// Check to make sure the types are compatible.
BitsRecTy *Ty = dynamic_cast<BitsRecTy*>(FirstBit->getVariable()->getType());
if (Ty == 0) return true;
if (Ty->getNumBits() != getNumBits()) return true; // Incompatible types!
// Check to make sure all bits are referring to the right bits in the variable
for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
VarBitInit *Bit = dynamic_cast<VarBitInit*>(getBit(i));
if (Bit == 0 || Bit->getVariable() != Var || Bit->getBitNum() != i)
return true;
}
Var->print(OS);
return false;
}
bool BitsInit::printAsUnset(std::ostream &OS) const {
for (unsigned i = 0, e = getNumBits(); i != e; ++i)
if (!dynamic_cast<UnsetInit*>(getBit(i)))
return true;
OS << "?";
return false;
}
Init *BitsInit::resolveReferences(Record &R) {
bool Changed = false;
BitsInit *New = new BitsInit(getNumBits());
for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
Init *B;
New->setBit(i, getBit(i));
do {
B = New->getBit(i);
New->setBit(i, B->resolveReferences(R));
Changed |= B != New->getBit(i);
} while (B != New->getBit(i));
}
if (Changed)
return New;
delete New;
return this;
}
Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
BitsInit *BI = new BitsInit(Bits.size());
for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
if (Bits[i] >= 32) {
delete BI;
return 0;
}
BI->setBit(i, new BitInit(Value & (1 << Bits[i])));
}
return BI;
}
void ListInit::print(std::ostream &OS) const {
OS << "[";
for (unsigned i = 0, e = Records.size(); i != e; ++i) {
if (i) OS << ", ";
OS << Records[i]->getName();
}
OS << "]";
}
Init *VarInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
if (T == 0) return 0; // Cannot subscript a non-bits variable...
unsigned NumBits = T->getNumBits();
BitsInit *BI = new BitsInit(Bits.size());
for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
if (Bits[i] >= NumBits) {
delete BI;
return 0;
}
BI->setBit(i, new VarBitInit(this, Bits[i]));
}
return BI;
}
RecTy *VarInit::getFieldType(const std::string &FieldName) const {
if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
return RV->getType();
return 0;
}
Init *VarInit::resolveBitReference(Record &R, unsigned Bit) {
if (R.isTemplateArg(getName()))
return this;
RecordVal *RV = R.getValue(getName());
assert(RV && "Reference to a non-existant variable?");
assert(dynamic_cast<BitsInit*>(RV->getValue()));
BitsInit *BI = (BitsInit*)RV->getValue();
assert(Bit < BI->getNumBits() && "Bit reference out of range!");
Init *B = BI->getBit(Bit);
if (!dynamic_cast<UnsetInit*>(B)) // If the bit is not set...
return B; // Replace the VarBitInit with it.
return this;
}
Init *VarBitInit::resolveReferences(Record &R) {
Init *I = getVariable()->resolveBitReference(R, getBitNum());
if (I != getVariable())
return I;
return this;
}
void DefInit::print(std::ostream &OS) const {
OS << Def->getName();
}
Init *FieldInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
if (T == 0) return 0; // Cannot subscript a non-bits field...
unsigned NumBits = T->getNumBits();
BitsInit *BI = new BitsInit(Bits.size());
for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
if (Bits[i] >= NumBits) {
delete BI;
return 0;
}
BI->setBit(i, new VarBitInit(this, Bits[i]));
}
return BI;
}
Init *FieldInit::resolveBitReference(Record &R, unsigned Bit) {
// Can never be resolved yet.
return this;
}
//===----------------------------------------------------------------------===//
// Other implementations
//===----------------------------------------------------------------------===//
RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
: Name(N), Ty(T), Prefix(P) {
Value = Ty->convertValue(new UnsetInit());
assert(Value && "Cannot create unset value for current type!");
}
void RecordVal::dump() const { std::cerr << *this; }
void RecordVal::print(std::ostream &OS, bool PrintSem) const {
if (getPrefix()) OS << "field ";
OS << *getType() << " " << getName();
if (getValue()) {
OS << " = " << *getValue();
}
if (PrintSem) OS << ";\n";
}
// resolveReferences - If there are any field references that refer to fields
// that have been filled in, we can propagate the values now.
//
void Record::resolveReferences() {
for (unsigned i = 0, e = Values.size(); i != e; ++i)
Values[i].setValue(Values[i].getValue()->resolveReferences(*this));
}
void Record::dump() const { std::cerr << *this; }
std::ostream &operator<<(std::ostream &OS, const Record &R) {
OS << R.getName();
const std::vector<std::string> &TArgs = R.getTemplateArgs();
if (!TArgs.empty()) {
OS << "<";
for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
if (i) OS << ", ";
const RecordVal *RV = R.getValue(TArgs[i]);
assert(RV && "Template argument record not found??");
RV->print(OS, false);
}
OS << ">";
}
OS << " {";
const std::vector<Record*> &SC = R.getSuperClasses();
if (!SC.empty()) {
OS << "\t//";
for (unsigned i = 0, e = SC.size(); i != e; ++i)
OS << " " << SC[i]->getName();
}
OS << "\n";
const std::vector<RecordVal> &Vals = R.getValues();
for (unsigned i = 0, e = Vals.size(); i != e; ++i)
if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
OS << Vals[i];
for (unsigned i = 0, e = Vals.size(); i != e; ++i)
if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
OS << Vals[i];
return OS << "}\n";
}
void RecordKeeper::dump() const { std::cerr << *this; }
std::ostream &operator<<(std::ostream &OS, const RecordKeeper &RK) {
OS << "------------- Classes -----------------\n";
const std::map<std::string, Record*> &Classes = RK.getClasses();
for (std::map<std::string, Record*>::const_iterator I = Classes.begin(),
E = Classes.end(); I != E; ++I)
OS << "class " << *I->second;
OS << "------------- Defs -----------------\n";
const std::map<std::string, Record*> &Defs = RK.getDefs();
for (std::map<std::string, Record*>::const_iterator I = Defs.begin(),
E = Defs.end(); I != E; ++I)
OS << "def " << *I->second;
return OS;
}
|