1 //===- Record.cpp - Record implementation ---------------------------------===//
4 //===----------------------------------------------------------------------===//
8 //===----------------------------------------------------------------------===//
9 // Type implementations
10 //===----------------------------------------------------------------------===//
12 void RecTy::dump() const { print(std::cerr); }
14 Init *BitRecTy::convertValue(BitsInit *BI) {
15 if (BI->getNumBits() != 1) return 0; // Only accept if just one bit!
19 Init *BitRecTy::convertValue(IntInit *II) {
20 int Val = II->getValue();
21 if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit!
24 return new BitInit(Val != 0);
27 Init *BitRecTy::convertValue(VarInit *VI) {
28 if (dynamic_cast<BitRecTy*>(VI->getType()))
29 return VI; // Accept variable if it is already of bit type!
33 Init *BitsRecTy::convertValue(UnsetInit *UI) {
34 BitsInit *Ret = new BitsInit(Size);
36 for (unsigned i = 0; i != Size; ++i)
37 Ret->setBit(i, new UnsetInit());
41 Init *BitsRecTy::convertValue(BitInit *UI) {
42 if (Size != 1) return 0; // Can only convert single bit...
43 BitsInit *Ret = new BitsInit(1);
48 // convertValue from Int initializer to bits type: Split the integer up into the
49 // appropriate bits...
51 Init *BitsRecTy::convertValue(IntInit *II) {
52 int Value = II->getValue();
55 BitsInit *Ret = new BitsInit(Size);
56 for (unsigned i = 0; i != Size; ++i)
57 Ret->setBit(i, new BitInit(Value & (1 << i)));
61 Init *BitsRecTy::convertValue(BitsInit *BI) {
62 // If the number of bits is right, return it. Otherwise we need to expand or
64 if (BI->getNumBits() == Size) return BI;
68 Init *BitsRecTy::convertValue(VarInit *VI) {
69 if (BitsRecTy *BRT = dynamic_cast<BitsRecTy*>(VI->getType()))
70 if (BRT->Size == Size) {
71 BitsInit *Ret = new BitsInit(Size);
72 for (unsigned i = 0; i != Size; ++i)
73 Ret->setBit(i, new VarBitInit(VI, i));
76 if (Size == 1 && dynamic_cast<BitRecTy*>(VI->getType())) {
77 BitsInit *Ret = new BitsInit(1);
85 Init *BitsRecTy::convertValue(FieldInit *VI) {
90 Init *IntRecTy::convertValue(BitsInit *BI) {
92 for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
93 if (BitInit *Bit = dynamic_cast<BitInit*>(BI->getBit(i))) {
94 Result |= Bit->getValue() << i;
98 return new IntInit(Result);
101 Init *IntRecTy::convertValue(VarInit *VI) {
102 if (dynamic_cast<IntRecTy*>(VI->getType()))
103 return VI; // Accept variable if already of the right type!
107 Init *StringRecTy::convertValue(VarInit *VI) {
108 if (dynamic_cast<StringRecTy*>(VI->getType()))
109 return VI; // Accept variable if already of the right type!
113 void ListRecTy::print(std::ostream &OS) const {
114 OS << "list<" << Class->getName() << ">";
117 Init *ListRecTy::convertValue(ListInit *LI) {
118 // Verify that all of the elements of the list are subclasses of the
120 for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
121 if (!LI->getElement(i)->isSubClassOf(Class))
126 void RecordRecTy::print(std::ostream &OS) const {
127 OS << Rec->getName();
130 Init *RecordRecTy::convertValue(DefInit *DI) {
131 // Ensure that DI is a subclass of Rec.
132 if (!DI->getDef()->isSubClassOf(Rec))
137 //===----------------------------------------------------------------------===//
138 // Initializer implementations
139 //===----------------------------------------------------------------------===//
141 void Init::dump() const { return print(std::cerr); }
143 Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
144 BitsInit *BI = new BitsInit(Bits.size());
145 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
146 if (Bits[i] >= getNumBits()) {
150 BI->setBit(i, getBit(Bits[i]));
155 void BitsInit::print(std::ostream &OS) const {
156 //if (!printInHex(OS)) return;
157 if (!printAsVariable(OS)) return;
158 if (!printAsUnset(OS)) return;
161 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
163 getBit(e-i-1)->print(OS);
168 bool BitsInit::printInHex(std::ostream &OS) const {
169 // First, attempt to convert the value into an integer value...
171 for (unsigned i = 0, e = getNumBits(); i != e; ++i)
172 if (BitInit *Bit = dynamic_cast<BitInit*>(getBit(i))) {
173 Result |= Bit->getValue() << i;
178 OS << "0x" << std::hex << Result << std::dec;
182 bool BitsInit::printAsVariable(std::ostream &OS) const {
183 // Get the variable that we may be set equal to...
184 assert(getNumBits() != 0);
185 VarBitInit *FirstBit = dynamic_cast<VarBitInit*>(getBit(0));
186 if (FirstBit == 0) return true;
187 TypedInit *Var = FirstBit->getVariable();
189 // Check to make sure the types are compatible.
190 BitsRecTy *Ty = dynamic_cast<BitsRecTy*>(FirstBit->getVariable()->getType());
191 if (Ty == 0) return true;
192 if (Ty->getNumBits() != getNumBits()) return true; // Incompatible types!
194 // Check to make sure all bits are referring to the right bits in the variable
195 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
196 VarBitInit *Bit = dynamic_cast<VarBitInit*>(getBit(i));
197 if (Bit == 0 || Bit->getVariable() != Var || Bit->getBitNum() != i)
205 bool BitsInit::printAsUnset(std::ostream &OS) const {
206 for (unsigned i = 0, e = getNumBits(); i != e; ++i)
207 if (!dynamic_cast<UnsetInit*>(getBit(i)))
213 Init *BitsInit::resolveReferences(Record &R) {
214 bool Changed = false;
215 BitsInit *New = new BitsInit(getNumBits());
217 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
219 New->setBit(i, getBit(i));
222 New->setBit(i, B->resolveReferences(R));
223 Changed |= B != New->getBit(i);
224 } while (B != New->getBit(i));
233 Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
234 BitsInit *BI = new BitsInit(Bits.size());
236 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
241 BI->setBit(i, new BitInit(Value & (1 << Bits[i])));
246 void ListInit::print(std::ostream &OS) const {
248 for (unsigned i = 0, e = Records.size(); i != e; ++i) {
250 OS << Records[i]->getName();
255 Init *VarInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
256 BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
257 if (T == 0) return 0; // Cannot subscript a non-bits variable...
258 unsigned NumBits = T->getNumBits();
260 BitsInit *BI = new BitsInit(Bits.size());
261 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
262 if (Bits[i] >= NumBits) {
266 BI->setBit(i, new VarBitInit(this, Bits[i]));
271 RecTy *VarInit::getFieldType(const std::string &FieldName) const {
272 if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
273 if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
274 return RV->getType();
278 Init *VarInit::resolveBitReference(Record &R, unsigned Bit) {
279 if (R.isTemplateArg(getName()))
282 RecordVal *RV = R.getValue(getName());
283 assert(RV && "Reference to a non-existant variable?");
284 assert(dynamic_cast<BitsInit*>(RV->getValue()));
285 BitsInit *BI = (BitsInit*)RV->getValue();
287 assert(Bit < BI->getNumBits() && "Bit reference out of range!");
288 Init *B = BI->getBit(Bit);
290 if (!dynamic_cast<UnsetInit*>(B)) // If the bit is not set...
291 return B; // Replace the VarBitInit with it.
297 Init *VarBitInit::resolveReferences(Record &R) {
298 Init *I = getVariable()->resolveBitReference(R, getBitNum());
300 if (I != getVariable())
305 void DefInit::print(std::ostream &OS) const {
306 OS << Def->getName();
309 Init *FieldInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
310 BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
311 if (T == 0) return 0; // Cannot subscript a non-bits field...
312 unsigned NumBits = T->getNumBits();
314 BitsInit *BI = new BitsInit(Bits.size());
315 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
316 if (Bits[i] >= NumBits) {
320 BI->setBit(i, new VarBitInit(this, Bits[i]));
325 Init *FieldInit::resolveBitReference(Record &R, unsigned Bit) {
326 // Can never be resolved yet.
331 //===----------------------------------------------------------------------===//
332 // Other implementations
333 //===----------------------------------------------------------------------===//
335 RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
336 : Name(N), Ty(T), Prefix(P) {
337 Value = Ty->convertValue(new UnsetInit());
338 assert(Value && "Cannot create unset value for current type!");
341 void RecordVal::dump() const { std::cerr << *this; }
343 void RecordVal::print(std::ostream &OS, bool PrintSem) const {
344 if (getPrefix()) OS << "field ";
345 OS << *getType() << " " << getName();
347 OS << " = " << *getValue();
349 if (PrintSem) OS << ";\n";
352 // resolveReferences - If there are any field references that refer to fields
353 // that have been filled in, we can propagate the values now.
355 void Record::resolveReferences() {
356 for (unsigned i = 0, e = Values.size(); i != e; ++i)
357 Values[i].setValue(Values[i].getValue()->resolveReferences(*this));
360 void Record::dump() const { std::cerr << *this; }
362 std::ostream &operator<<(std::ostream &OS, const Record &R) {
365 const std::vector<std::string> &TArgs = R.getTemplateArgs();
366 if (!TArgs.empty()) {
368 for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
370 const RecordVal *RV = R.getValue(TArgs[i]);
371 assert(RV && "Template argument record not found??");
372 RV->print(OS, false);
378 const std::vector<Record*> &SC = R.getSuperClasses();
381 for (unsigned i = 0, e = SC.size(); i != e; ++i)
382 OS << " " << SC[i]->getName();
386 const std::vector<RecordVal> &Vals = R.getValues();
387 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
388 if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
390 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
391 if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
397 void RecordKeeper::dump() const { std::cerr << *this; }
399 std::ostream &operator<<(std::ostream &OS, const RecordKeeper &RK) {
400 OS << "------------- Classes -----------------\n";
401 const std::map<std::string, Record*> &Classes = RK.getClasses();
402 for (std::map<std::string, Record*>::const_iterator I = Classes.begin(),
403 E = Classes.end(); I != E; ++I)
404 OS << "class " << *I->second;
406 OS << "------------- Defs -----------------\n";
407 const std::map<std::string, Record*> &Defs = RK.getDefs();
408 for (std::map<std::string, Record*>::const_iterator I = Defs.begin(),
409 E = Defs.end(); I != E; ++I)
410 OS << "def " << *I->second;