1 //===- Record.cpp - Record implementation ---------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
14 #include "llvm/Support/DataTypes.h"
17 //===----------------------------------------------------------------------===//
18 // Type implementations
19 //===----------------------------------------------------------------------===//
21 void RecTy::dump() const { print(std::cerr); }
23 Init *BitRecTy::convertValue(BitsInit *BI) {
24 if (BI->getNumBits() != 1) return 0; // Only accept if just one bit!
28 bool BitRecTy::baseClassOf(const BitsRecTy *RHS) const {
29 return RHS->getNumBits() == 1;
32 Init *BitRecTy::convertValue(IntInit *II) {
33 int Val = II->getValue();
34 if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit!
36 return new BitInit(Val != 0);
39 Init *BitRecTy::convertValue(TypedInit *VI) {
40 if (dynamic_cast<BitRecTy*>(VI->getType()))
41 return VI; // Accept variable if it is already of bit type!
45 Init *BitsRecTy::convertValue(UnsetInit *UI) {
46 BitsInit *Ret = new BitsInit(Size);
48 for (unsigned i = 0; i != Size; ++i)
49 Ret->setBit(i, new UnsetInit());
53 Init *BitsRecTy::convertValue(BitInit *UI) {
54 if (Size != 1) return 0; // Can only convert single bit...
55 BitsInit *Ret = new BitsInit(1);
60 // convertValue from Int initializer to bits type: Split the integer up into the
61 // appropriate bits...
63 Init *BitsRecTy::convertValue(IntInit *II) {
64 int64_t Value = II->getValue();
65 // Make sure this bitfield is large enough to hold the integer value...
67 if (Value & ~((1LL << Size)-1))
70 if ((Value >> Size) != -1 || ((Value & (1 << Size-1)) == 0))
74 BitsInit *Ret = new BitsInit(Size);
75 for (unsigned i = 0; i != Size; ++i)
76 Ret->setBit(i, new BitInit(Value & (1 << i)));
81 Init *BitsRecTy::convertValue(BitsInit *BI) {
82 // If the number of bits is right, return it. Otherwise we need to expand or
84 if (BI->getNumBits() == Size) return BI;
88 Init *BitsRecTy::convertValue(TypedInit *VI) {
89 if (BitsRecTy *BRT = dynamic_cast<BitsRecTy*>(VI->getType()))
90 if (BRT->Size == Size) {
91 BitsInit *Ret = new BitsInit(Size);
92 for (unsigned i = 0; i != Size; ++i)
93 Ret->setBit(i, new VarBitInit(VI, i));
96 if (Size == 1 && dynamic_cast<BitRecTy*>(VI->getType())) {
97 BitsInit *Ret = new BitsInit(1);
105 Init *IntRecTy::convertValue(BitInit *BI) {
106 return new IntInit(BI->getValue());
109 Init *IntRecTy::convertValue(BitsInit *BI) {
111 for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
112 if (BitInit *Bit = dynamic_cast<BitInit*>(BI->getBit(i))) {
113 Result |= Bit->getValue() << i;
117 return new IntInit(Result);
120 Init *IntRecTy::convertValue(TypedInit *TI) {
121 if (TI->getType()->typeIsConvertibleTo(this))
122 return TI; // Accept variable if already of the right type!
126 Init *StringRecTy::convertValue(TypedInit *TI) {
127 if (dynamic_cast<StringRecTy*>(TI->getType()))
128 return TI; // Accept variable if already of the right type!
132 void ListRecTy::print(std::ostream &OS) const {
133 OS << "list<" << *Ty << ">";
136 Init *ListRecTy::convertValue(ListInit *LI) {
137 std::vector<Init*> Elements;
139 // Verify that all of the elements of the list are subclasses of the
140 // appropriate class!
141 for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
142 if (Init *CI = LI->getElement(i)->convertInitializerTo(Ty))
143 Elements.push_back(CI);
147 return new ListInit(Elements);
150 Init *ListRecTy::convertValue(TypedInit *TI) {
151 // Ensure that TI is compatible with our class.
152 if (ListRecTy *LRT = dynamic_cast<ListRecTy*>(TI->getType()))
153 if (LRT->getElementType()->typeIsConvertibleTo(getElementType()))
158 Init *CodeRecTy::convertValue(TypedInit *TI) {
159 if (TI->getType()->typeIsConvertibleTo(this))
164 Init *DagRecTy::convertValue(TypedInit *TI) {
165 if (TI->getType()->typeIsConvertibleTo(this))
171 void RecordRecTy::print(std::ostream &OS) const {
172 OS << Rec->getName();
175 Init *RecordRecTy::convertValue(DefInit *DI) {
176 // Ensure that DI is a subclass of Rec.
177 if (!DI->getDef()->isSubClassOf(Rec))
182 Init *RecordRecTy::convertValue(TypedInit *TI) {
183 // Ensure that TI is compatible with Rec.
184 if (RecordRecTy *RRT = dynamic_cast<RecordRecTy*>(TI->getType()))
185 if (RRT->getRecord()->isSubClassOf(getRecord()) ||
186 RRT->getRecord() == getRecord())
191 bool RecordRecTy::baseClassOf(const RecordRecTy *RHS) const {
192 return Rec == RHS->getRecord() || RHS->getRecord()->isSubClassOf(Rec);
196 //===----------------------------------------------------------------------===//
197 // Initializer implementations
198 //===----------------------------------------------------------------------===//
200 void Init::dump() const { return print(std::cerr); }
202 Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
203 BitsInit *BI = new BitsInit(Bits.size());
204 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
205 if (Bits[i] >= getNumBits()) {
209 BI->setBit(i, getBit(Bits[i]));
214 void BitsInit::print(std::ostream &OS) const {
215 //if (!printInHex(OS)) return;
216 //if (!printAsVariable(OS)) return;
217 //if (!printAsUnset(OS)) return;
220 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
222 if (Init *Bit = getBit(e-i-1))
230 bool BitsInit::printInHex(std::ostream &OS) const {
231 // First, attempt to convert the value into an integer value...
233 for (unsigned i = 0, e = getNumBits(); i != e; ++i)
234 if (BitInit *Bit = dynamic_cast<BitInit*>(getBit(i))) {
235 Result |= Bit->getValue() << i;
240 OS << "0x" << std::hex << Result << std::dec;
244 bool BitsInit::printAsVariable(std::ostream &OS) const {
245 // Get the variable that we may be set equal to...
246 assert(getNumBits() != 0);
247 VarBitInit *FirstBit = dynamic_cast<VarBitInit*>(getBit(0));
248 if (FirstBit == 0) return true;
249 TypedInit *Var = FirstBit->getVariable();
251 // Check to make sure the types are compatible.
252 BitsRecTy *Ty = dynamic_cast<BitsRecTy*>(FirstBit->getVariable()->getType());
253 if (Ty == 0) return true;
254 if (Ty->getNumBits() != getNumBits()) return true; // Incompatible types!
256 // Check to make sure all bits are referring to the right bits in the variable
257 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
258 VarBitInit *Bit = dynamic_cast<VarBitInit*>(getBit(i));
259 if (Bit == 0 || Bit->getVariable() != Var || Bit->getBitNum() != i)
267 bool BitsInit::printAsUnset(std::ostream &OS) const {
268 for (unsigned i = 0, e = getNumBits(); i != e; ++i)
269 if (!dynamic_cast<UnsetInit*>(getBit(i)))
275 // resolveReferences - If there are any field references that refer to fields
276 // that have been filled in, we can propagate the values now.
278 Init *BitsInit::resolveReferences(Record &R) {
279 bool Changed = false;
280 BitsInit *New = new BitsInit(getNumBits());
282 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
284 Init *CurBit = getBit(i);
288 CurBit = CurBit->resolveReferences(R);
289 Changed |= B != CurBit;
290 } while (B != CurBit);
291 New->setBit(i, CurBit);
300 Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
301 BitsInit *BI = new BitsInit(Bits.size());
303 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
308 BI->setBit(i, new BitInit(Value & (1 << Bits[i])));
313 Init *ListInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
314 std::vector<Init*> Vals;
315 for (unsigned i = 0, e = Elements.size(); i != e; ++i) {
316 if (Elements[i] >= getSize())
318 Vals.push_back(getElement(Elements[i]));
320 return new ListInit(Vals);
323 Init *ListInit::resolveReferences(Record &R) {
324 std::vector<Init*> Resolved;
325 Resolved.reserve(getSize());
326 bool Changed = false;
328 for (unsigned i = 0, e = getSize(); i != e; ++i) {
330 Init *CurElt = getElement(i);
334 CurElt = CurElt->resolveReferences(R);
335 Changed |= E != CurElt;
336 } while (E != CurElt);
337 Resolved.push_back(E);
341 return new ListInit(Resolved);
345 void ListInit::print(std::ostream &OS) const {
347 for (unsigned i = 0, e = Values.size(); i != e; ++i) {
354 Init *TypedInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
355 BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
356 if (T == 0) return 0; // Cannot subscript a non-bits variable...
357 unsigned NumBits = T->getNumBits();
359 BitsInit *BI = new BitsInit(Bits.size());
360 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
361 if (Bits[i] >= NumBits) {
365 BI->setBit(i, new VarBitInit(this, Bits[i]));
370 Init *TypedInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
371 ListRecTy *T = dynamic_cast<ListRecTy*>(getType());
372 if (T == 0) return 0; // Cannot subscript a non-list variable...
374 if (Elements.size() == 1)
375 return new VarListElementInit(this, Elements[0]);
377 std::vector<Init*> ListInits;
378 ListInits.reserve(Elements.size());
379 for (unsigned i = 0, e = Elements.size(); i != e; ++i)
380 ListInits.push_back(new VarListElementInit(this, Elements[i]));
381 return new ListInit(ListInits);
385 Init *VarInit::resolveBitReference(Record &R, unsigned Bit) {
386 if (R.isTemplateArg(getName()))
389 RecordVal *RV = R.getValue(getName());
390 assert(RV && "Reference to a non-existant variable?");
391 assert(dynamic_cast<BitsInit*>(RV->getValue()));
392 BitsInit *BI = (BitsInit*)RV->getValue();
394 assert(Bit < BI->getNumBits() && "Bit reference out of range!");
395 Init *B = BI->getBit(Bit);
397 if (!dynamic_cast<UnsetInit*>(B)) // If the bit is not set...
398 return B; // Replace the VarBitInit with it.
402 Init *VarInit::resolveListElementReference(Record &R, unsigned Elt) {
403 if (R.isTemplateArg(getName()))
406 RecordVal *RV = R.getValue(getName());
407 assert(RV && "Reference to a non-existant variable?");
408 ListInit *LI = dynamic_cast<ListInit*>(RV->getValue());
409 assert(LI && "Invalid list element!");
411 if (Elt >= LI->getSize())
412 return 0; // Out of range reference.
413 Init *E = LI->getElement(Elt);
414 if (!dynamic_cast<UnsetInit*>(E)) // If the element is set
415 return E; // Replace the VarListElementInit with it.
420 RecTy *VarInit::getFieldType(const std::string &FieldName) const {
421 if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
422 if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
423 return RV->getType();
427 Init *VarInit::getFieldInit(Record &R, const std::string &FieldName) const {
428 if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
429 if (const RecordVal *RV = R.getValue(VarName)) {
430 Init *TheInit = RV->getValue();
431 assert(TheInit != this && "Infinite loop detected!");
432 if (Init *I = TheInit->getFieldInit(R, FieldName))
440 /// resolveReferences - This method is used by classes that refer to other
441 /// variables which may not be defined at the time they expression is formed.
442 /// If a value is set for the variable later, this method will be called on
443 /// users of the value to allow the value to propagate out.
445 Init *VarInit::resolveReferences(Record &R) {
446 if (RecordVal *Val = R.getValue(VarName))
447 if (!dynamic_cast<UnsetInit*>(Val->getValue()))
448 return Val->getValue();
453 Init *VarBitInit::resolveReferences(Record &R) {
454 if (Init *I = getVariable()->resolveBitReference(R, getBitNum()))
459 Init *VarListElementInit::resolveReferences(Record &R) {
460 if (Init *I = getVariable()->resolveListElementReference(R, getElementNum()))
465 Init *VarListElementInit::resolveBitReference(Record &R, unsigned Bit) {
466 // FIXME: This should be implemented, to support references like:
471 Init *VarListElementInit::resolveListElementReference(Record &R, unsigned Elt) {
472 // FIXME: This should be implemented, to support references like:
477 RecTy *DefInit::getFieldType(const std::string &FieldName) const {
478 if (const RecordVal *RV = Def->getValue(FieldName))
479 return RV->getType();
483 Init *DefInit::getFieldInit(Record &R, const std::string &FieldName) const {
484 return Def->getValue(FieldName)->getValue();
488 void DefInit::print(std::ostream &OS) const {
489 OS << Def->getName();
492 Init *FieldInit::resolveBitReference(Record &R, unsigned Bit) {
493 if (Init *BitsVal = Rec->getFieldInit(R, FieldName))
494 if (BitsInit *BI = dynamic_cast<BitsInit*>(BitsVal)) {
495 assert(Bit < BI->getNumBits() && "Bit reference out of range!");
496 Init *B = BI->getBit(Bit);
498 if (dynamic_cast<BitInit*>(B)) // If the bit is set...
499 return B; // Replace the VarBitInit with it.
504 Init *FieldInit::resolveListElementReference(Record &R, unsigned Elt) {
505 if (Init *ListVal = Rec->getFieldInit(R, FieldName))
506 if (ListInit *LI = dynamic_cast<ListInit*>(ListVal)) {
507 if (Elt >= LI->getSize()) return 0;
508 Init *E = LI->getElement(Elt);
510 if (!dynamic_cast<UnsetInit*>(E)) // If the bit is set...
511 return E; // Replace the VarListElementInit with it.
516 Init *FieldInit::resolveReferences(Record &R) {
517 Init *BitsVal = Rec->getFieldInit(R, FieldName);
519 Init *BVR = BitsVal->resolveReferences(R);
520 return BVR->isComplete() ? BVR : this;
526 void DagInit::print(std::ostream &OS) const {
527 OS << "(" << NodeTypeDef->getName();
529 OS << " " << *Args[0];
530 if (!ArgNames[0].empty()) OS << ":$" << ArgNames[0];
531 for (unsigned i = 1, e = Args.size(); i != e; ++i) {
532 OS << ", " << *Args[i];
533 if (!ArgNames[i].empty()) OS << ":$" << ArgNames[i];
540 //===----------------------------------------------------------------------===//
541 // Other implementations
542 //===----------------------------------------------------------------------===//
544 RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
545 : Name(N), Ty(T), Prefix(P) {
546 Value = Ty->convertValue(new UnsetInit());
547 assert(Value && "Cannot create unset value for current type!");
550 void RecordVal::dump() const { std::cerr << *this; }
552 void RecordVal::print(std::ostream &OS, bool PrintSem) const {
553 if (getPrefix()) OS << "field ";
554 OS << *getType() << " " << getName();
556 OS << " = " << *getValue();
558 if (PrintSem) OS << ";\n";
561 // resolveReferences - If there are any field references that refer to fields
562 // that have been filled in, we can propagate the values now.
564 void Record::resolveReferences() {
565 for (unsigned i = 0, e = Values.size(); i != e; ++i)
566 Values[i].setValue(Values[i].getValue()->resolveReferences(*this));
569 void Record::dump() const { std::cerr << *this; }
571 std::ostream &llvm::operator<<(std::ostream &OS, const Record &R) {
574 const std::vector<std::string> &TArgs = R.getTemplateArgs();
575 if (!TArgs.empty()) {
577 for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
579 const RecordVal *RV = R.getValue(TArgs[i]);
580 assert(RV && "Template argument record not found??");
581 RV->print(OS, false);
587 const std::vector<Record*> &SC = R.getSuperClasses();
590 for (unsigned i = 0, e = SC.size(); i != e; ++i)
591 OS << " " << SC[i]->getName();
595 const std::vector<RecordVal> &Vals = R.getValues();
596 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
597 if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
599 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
600 if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
606 /// getValueInit - Return the initializer for a value with the specified name,
607 /// or throw an exception if the field does not exist.
609 Init *Record::getValueInit(const std::string &FieldName) const {
610 const RecordVal *R = getValue(FieldName);
611 if (R == 0 || R->getValue() == 0)
612 throw "Record '" + getName() + "' does not have a field named '" +
614 return R->getValue();
618 /// getValueAsString - This method looks up the specified field and returns its
619 /// value as a string, throwing an exception if the field does not exist or if
620 /// the value is not a string.
622 std::string Record::getValueAsString(const std::string &FieldName) const {
623 const RecordVal *R = getValue(FieldName);
624 if (R == 0 || R->getValue() == 0)
625 throw "Record '" + getName() + "' does not have a field named '" +
628 if (const StringInit *SI = dynamic_cast<const StringInit*>(R->getValue()))
629 return SI->getValue();
630 throw "Record '" + getName() + "', field '" + FieldName +
631 "' does not have a string initializer!";
634 /// getValueAsBitsInit - This method looks up the specified field and returns
635 /// its value as a BitsInit, throwing an exception if the field does not exist
636 /// or if the value is not the right type.
638 BitsInit *Record::getValueAsBitsInit(const std::string &FieldName) const {
639 const RecordVal *R = getValue(FieldName);
640 if (R == 0 || R->getValue() == 0)
641 throw "Record '" + getName() + "' does not have a field named '" +
644 if (BitsInit *BI = dynamic_cast<BitsInit*>(R->getValue()))
646 throw "Record '" + getName() + "', field '" + FieldName +
647 "' does not have a BitsInit initializer!";
650 /// getValueAsListInit - This method looks up the specified field and returns
651 /// its value as a ListInit, throwing an exception if the field does not exist
652 /// or if the value is not the right type.
654 ListInit *Record::getValueAsListInit(const std::string &FieldName) const {
655 const RecordVal *R = getValue(FieldName);
656 if (R == 0 || R->getValue() == 0)
657 throw "Record '" + getName() + "' does not have a field named '" +
660 if (ListInit *LI = dynamic_cast<ListInit*>(R->getValue()))
662 throw "Record '" + getName() + "', field '" + FieldName +
663 "' does not have a list initializer!";
666 /// getValueAsInt - This method looks up the specified field and returns its
667 /// value as an int, throwing an exception if the field does not exist or if
668 /// the value is not the right type.
670 int Record::getValueAsInt(const std::string &FieldName) const {
671 const RecordVal *R = getValue(FieldName);
672 if (R == 0 || R->getValue() == 0)
673 throw "Record '" + getName() + "' does not have a field named '" +
676 if (IntInit *II = dynamic_cast<IntInit*>(R->getValue()))
677 return II->getValue();
678 throw "Record '" + getName() + "', field '" + FieldName +
679 "' does not have a list initializer!";
682 /// getValueAsDef - This method looks up the specified field and returns its
683 /// value as a Record, throwing an exception if the field does not exist or if
684 /// the value is not the right type.
686 Record *Record::getValueAsDef(const std::string &FieldName) const {
687 const RecordVal *R = getValue(FieldName);
688 if (R == 0 || R->getValue() == 0)
689 throw "Record '" + getName() + "' does not have a field named '" +
692 if (DefInit *DI = dynamic_cast<DefInit*>(R->getValue()))
694 throw "Record '" + getName() + "', field '" + FieldName +
695 "' does not have a list initializer!";
698 /// getValueAsBit - This method looks up the specified field and returns its
699 /// value as a bit, throwing an exception if the field does not exist or if
700 /// the value is not the right type.
702 bool Record::getValueAsBit(const std::string &FieldName) const {
703 const RecordVal *R = getValue(FieldName);
704 if (R == 0 || R->getValue() == 0)
705 throw "Record '" + getName() + "' does not have a field named '" +
708 if (BitInit *BI = dynamic_cast<BitInit*>(R->getValue()))
709 return BI->getValue();
710 throw "Record '" + getName() + "', field '" + FieldName +
711 "' does not have a bit initializer!";
714 /// getValueAsDag - This method looks up the specified field and returns its
715 /// value as an Dag, throwing an exception if the field does not exist or if
716 /// the value is not the right type.
718 DagInit *Record::getValueAsDag(const std::string &FieldName) const {
719 const RecordVal *R = getValue(FieldName);
720 if (R == 0 || R->getValue() == 0)
721 throw "Record '" + getName() + "' does not have a field named '" +
724 if (DagInit *DI = dynamic_cast<DagInit*>(R->getValue()))
726 throw "Record '" + getName() + "', field '" + FieldName +
727 "' does not have a dag initializer!";
731 void RecordKeeper::dump() const { std::cerr << *this; }
733 std::ostream &llvm::operator<<(std::ostream &OS, const RecordKeeper &RK) {
734 OS << "------------- Classes -----------------\n";
735 const std::map<std::string, Record*> &Classes = RK.getClasses();
736 for (std::map<std::string, Record*>::const_iterator I = Classes.begin(),
737 E = Classes.end(); I != E; ++I)
738 OS << "class " << *I->second;
740 OS << "------------- Defs -----------------\n";
741 const std::map<std::string, Record*> &Defs = RK.getDefs();
742 for (std::map<std::string, Record*>::const_iterator I = Defs.begin(),
743 E = Defs.end(); I != E; ++I)
744 OS << "def " << *I->second;
749 /// getAllDerivedDefinitions - This method returns all concrete definitions
750 /// that derive from the specified class name. If a class with the specified
751 /// name does not exist, an error is printed and true is returned.
753 RecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const {
754 Record *Class = Records.getClass(ClassName);
756 throw "ERROR: Couldn't find the '" + ClassName + "' class!\n";
758 std::vector<Record*> Defs;
759 for (std::map<std::string, Record*>::const_iterator I = getDefs().begin(),
760 E = getDefs().end(); I != E; ++I)
761 if (I->second->isSubClassOf(Class))
762 Defs.push_back(I->second);