1 //===- Record.cpp - Record implementation ---------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Implement the tablegen record classes.
12 //===----------------------------------------------------------------------===//
15 #include "llvm/System/DataTypes.h"
16 #include "llvm/Support/Format.h"
17 #include "llvm/ADT/StringExtras.h"
21 //===----------------------------------------------------------------------===//
22 // Type implementations
23 //===----------------------------------------------------------------------===//
25 void RecTy::dump() const { print(errs()); }
27 Init *BitRecTy::convertValue(BitsInit *BI) {
28 if (BI->getNumBits() != 1) return 0; // Only accept if just one bit!
32 bool BitRecTy::baseClassOf(const BitsRecTy *RHS) const {
33 return RHS->getNumBits() == 1;
36 Init *BitRecTy::convertValue(IntInit *II) {
37 int64_t Val = II->getValue();
38 if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit!
40 return new BitInit(Val != 0);
43 Init *BitRecTy::convertValue(TypedInit *VI) {
44 if (dynamic_cast<BitRecTy*>(VI->getType()))
45 return VI; // Accept variable if it is already of bit type!
49 std::string BitsRecTy::getAsString() const {
50 return "bits<" + utostr(Size) + ">";
53 Init *BitsRecTy::convertValue(UnsetInit *UI) {
54 BitsInit *Ret = new BitsInit(Size);
56 for (unsigned i = 0; i != Size; ++i)
57 Ret->setBit(i, new UnsetInit());
61 Init *BitsRecTy::convertValue(BitInit *UI) {
62 if (Size != 1) return 0; // Can only convert single bit...
63 BitsInit *Ret = new BitsInit(1);
68 // convertValue from Int initializer to bits type: Split the integer up into the
69 // appropriate bits...
71 Init *BitsRecTy::convertValue(IntInit *II) {
72 int64_t Value = II->getValue();
73 // Make sure this bitfield is large enough to hold the integer value...
75 if (Value & ~((1LL << Size)-1))
78 if ((Value >> Size) != -1 || ((Value & (1LL << (Size-1))) == 0))
82 BitsInit *Ret = new BitsInit(Size);
83 for (unsigned i = 0; i != Size; ++i)
84 Ret->setBit(i, new BitInit(Value & (1LL << i)));
89 Init *BitsRecTy::convertValue(BitsInit *BI) {
90 // If the number of bits is right, return it. Otherwise we need to expand or
92 if (BI->getNumBits() == Size) return BI;
96 Init *BitsRecTy::convertValue(TypedInit *VI) {
97 if (BitsRecTy *BRT = dynamic_cast<BitsRecTy*>(VI->getType()))
98 if (BRT->Size == Size) {
99 BitsInit *Ret = new BitsInit(Size);
100 for (unsigned i = 0; i != Size; ++i)
101 Ret->setBit(i, new VarBitInit(VI, i));
104 if (Size == 1 && dynamic_cast<BitRecTy*>(VI->getType())) {
105 BitsInit *Ret = new BitsInit(1);
113 Init *IntRecTy::convertValue(BitInit *BI) {
114 return new IntInit(BI->getValue());
117 Init *IntRecTy::convertValue(BitsInit *BI) {
119 for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
120 if (BitInit *Bit = dynamic_cast<BitInit*>(BI->getBit(i))) {
121 Result |= Bit->getValue() << i;
125 return new IntInit(Result);
128 Init *IntRecTy::convertValue(TypedInit *TI) {
129 if (TI->getType()->typeIsConvertibleTo(this))
130 return TI; // Accept variable if already of the right type!
134 Init *StringRecTy::convertValue(UnOpInit *BO) {
135 if (BO->getOpcode() == UnOpInit::CAST) {
136 Init *L = BO->getOperand()->convertInitializerTo(this);
137 if (L == 0) return 0;
138 if (L != BO->getOperand())
139 return new UnOpInit(UnOpInit::CAST, L, new StringRecTy);
143 return convertValue((TypedInit*)BO);
146 Init *StringRecTy::convertValue(BinOpInit *BO) {
147 if (BO->getOpcode() == BinOpInit::STRCONCAT) {
148 Init *L = BO->getLHS()->convertInitializerTo(this);
149 Init *R = BO->getRHS()->convertInitializerTo(this);
150 if (L == 0 || R == 0) return 0;
151 if (L != BO->getLHS() || R != BO->getRHS())
152 return new BinOpInit(BinOpInit::STRCONCAT, L, R, new StringRecTy);
155 if (BO->getOpcode() == BinOpInit::NAMECONCAT) {
156 if (BO->getType()->getAsString() == getAsString()) {
157 Init *L = BO->getLHS()->convertInitializerTo(this);
158 Init *R = BO->getRHS()->convertInitializerTo(this);
159 if (L == 0 || R == 0) return 0;
160 if (L != BO->getLHS() || R != BO->getRHS())
161 return new BinOpInit(BinOpInit::NAMECONCAT, L, R, new StringRecTy);
166 return convertValue((TypedInit*)BO);
170 Init *StringRecTy::convertValue(TypedInit *TI) {
171 if (dynamic_cast<StringRecTy*>(TI->getType()))
172 return TI; // Accept variable if already of the right type!
176 std::string ListRecTy::getAsString() const {
177 return "list<" + Ty->getAsString() + ">";
180 Init *ListRecTy::convertValue(ListInit *LI) {
181 std::vector<Init*> Elements;
183 // Verify that all of the elements of the list are subclasses of the
184 // appropriate class!
185 for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
186 if (Init *CI = LI->getElement(i)->convertInitializerTo(Ty))
187 Elements.push_back(CI);
191 ListRecTy *LType = dynamic_cast<ListRecTy*>(LI->getType());
196 return new ListInit(Elements, new ListRecTy(Ty));
199 Init *ListRecTy::convertValue(TypedInit *TI) {
200 // Ensure that TI is compatible with our class.
201 if (ListRecTy *LRT = dynamic_cast<ListRecTy*>(TI->getType()))
202 if (LRT->getElementType()->typeIsConvertibleTo(getElementType()))
207 Init *CodeRecTy::convertValue(TypedInit *TI) {
208 if (TI->getType()->typeIsConvertibleTo(this))
213 Init *DagRecTy::convertValue(TypedInit *TI) {
214 if (TI->getType()->typeIsConvertibleTo(this))
219 Init *DagRecTy::convertValue(UnOpInit *BO) {
220 if (BO->getOpcode() == UnOpInit::CAST) {
221 Init *L = BO->getOperand()->convertInitializerTo(this);
222 if (L == 0) return 0;
223 if (L != BO->getOperand())
224 return new UnOpInit(UnOpInit::CAST, L, new DagRecTy);
230 Init *DagRecTy::convertValue(BinOpInit *BO) {
231 if (BO->getOpcode() == BinOpInit::CONCAT) {
232 Init *L = BO->getLHS()->convertInitializerTo(this);
233 Init *R = BO->getRHS()->convertInitializerTo(this);
234 if (L == 0 || R == 0) return 0;
235 if (L != BO->getLHS() || R != BO->getRHS())
236 return new BinOpInit(BinOpInit::CONCAT, L, R, new DagRecTy);
239 if (BO->getOpcode() == BinOpInit::NAMECONCAT) {
240 if (BO->getType()->getAsString() == getAsString()) {
241 Init *L = BO->getLHS()->convertInitializerTo(this);
242 Init *R = BO->getRHS()->convertInitializerTo(this);
243 if (L == 0 || R == 0) return 0;
244 if (L != BO->getLHS() || R != BO->getRHS())
245 return new BinOpInit(BinOpInit::CONCAT, L, R, new DagRecTy);
252 std::string RecordRecTy::getAsString() const {
253 return Rec->getName();
256 Init *RecordRecTy::convertValue(DefInit *DI) {
257 // Ensure that DI is a subclass of Rec.
258 if (!DI->getDef()->isSubClassOf(Rec))
263 Init *RecordRecTy::convertValue(TypedInit *TI) {
264 // Ensure that TI is compatible with Rec.
265 if (RecordRecTy *RRT = dynamic_cast<RecordRecTy*>(TI->getType()))
266 if (RRT->getRecord()->isSubClassOf(getRecord()) ||
267 RRT->getRecord() == getRecord())
272 bool RecordRecTy::baseClassOf(const RecordRecTy *RHS) const {
273 return Rec == RHS->getRecord() || RHS->getRecord()->isSubClassOf(Rec);
277 /// resolveTypes - Find a common type that T1 and T2 convert to.
278 /// Return 0 if no such type exists.
280 RecTy *llvm::resolveTypes(RecTy *T1, RecTy *T2) {
281 if (!T1->typeIsConvertibleTo(T2)) {
282 if (!T2->typeIsConvertibleTo(T1)) {
283 // If one is a Record type, check superclasses
284 RecordRecTy *RecTy1 = dynamic_cast<RecordRecTy*>(T1);
286 // See if T2 inherits from a type T1 also inherits from
287 const std::vector<Record *> &T1SuperClasses =
288 RecTy1->getRecord()->getSuperClasses();
289 for(std::vector<Record *>::const_iterator i = T1SuperClasses.begin(),
290 iend = T1SuperClasses.end();
293 RecordRecTy *SuperRecTy1 = new RecordRecTy(*i);
294 RecTy *NewType1 = resolveTypes(SuperRecTy1, T2);
296 if (NewType1 != SuperRecTy1) {
303 RecordRecTy *RecTy2 = dynamic_cast<RecordRecTy*>(T2);
305 // See if T1 inherits from a type T2 also inherits from
306 const std::vector<Record *> &T2SuperClasses =
307 RecTy2->getRecord()->getSuperClasses();
308 for (std::vector<Record *>::const_iterator i = T2SuperClasses.begin(),
309 iend = T2SuperClasses.end();
312 RecordRecTy *SuperRecTy2 = new RecordRecTy(*i);
313 RecTy *NewType2 = resolveTypes(T1, SuperRecTy2);
315 if (NewType2 != SuperRecTy2) {
330 //===----------------------------------------------------------------------===//
331 // Initializer implementations
332 //===----------------------------------------------------------------------===//
334 void Init::dump() const { return print(errs()); }
336 Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
337 BitsInit *BI = new BitsInit(Bits.size());
338 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
339 if (Bits[i] >= getNumBits()) {
343 BI->setBit(i, getBit(Bits[i]));
348 std::string BitsInit::getAsString() const {
349 std::string Result = "{ ";
350 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
351 if (i) Result += ", ";
352 if (Init *Bit = getBit(e-i-1))
353 Result += Bit->getAsString();
357 return Result + " }";
360 // resolveReferences - If there are any field references that refer to fields
361 // that have been filled in, we can propagate the values now.
363 Init *BitsInit::resolveReferences(Record &R, const RecordVal *RV) {
364 bool Changed = false;
365 BitsInit *New = new BitsInit(getNumBits());
367 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
369 Init *CurBit = getBit(i);
373 CurBit = CurBit->resolveReferences(R, RV);
374 Changed |= B != CurBit;
375 } while (B != CurBit);
376 New->setBit(i, CurBit);
385 std::string IntInit::getAsString() const {
386 return itostr(Value);
389 Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
390 BitsInit *BI = new BitsInit(Bits.size());
392 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
397 BI->setBit(i, new BitInit(Value & (INT64_C(1) << Bits[i])));
402 Init *ListInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
403 std::vector<Init*> Vals;
404 for (unsigned i = 0, e = Elements.size(); i != e; ++i) {
405 if (Elements[i] >= getSize())
407 Vals.push_back(getElement(Elements[i]));
409 return new ListInit(Vals, getType());
412 Record *ListInit::getElementAsRecord(unsigned i) const {
413 assert(i < Values.size() && "List element index out of range!");
414 DefInit *DI = dynamic_cast<DefInit*>(Values[i]);
415 if (DI == 0) throw "Expected record in list!";
419 Init *ListInit::resolveReferences(Record &R, const RecordVal *RV) {
420 std::vector<Init*> Resolved;
421 Resolved.reserve(getSize());
422 bool Changed = false;
424 for (unsigned i = 0, e = getSize(); i != e; ++i) {
426 Init *CurElt = getElement(i);
430 CurElt = CurElt->resolveReferences(R, RV);
431 Changed |= E != CurElt;
432 } while (E != CurElt);
433 Resolved.push_back(E);
437 return new ListInit(Resolved, getType());
441 Init *ListInit::resolveListElementReference(Record &R, const RecordVal *IRV,
443 if (Elt >= getSize())
444 return 0; // Out of range reference.
445 Init *E = getElement(Elt);
446 // If the element is set to some value, or if we are resolving a reference
447 // to a specific variable and that variable is explicitly unset, then
448 // replace the VarListElementInit with it.
449 if (IRV || !dynamic_cast<UnsetInit*>(E))
454 std::string ListInit::getAsString() const {
455 std::string Result = "[";
456 for (unsigned i = 0, e = Values.size(); i != e; ++i) {
457 if (i) Result += ", ";
458 Result += Values[i]->getAsString();
463 Init *OpInit::resolveBitReference(Record &R, const RecordVal *IRV,
465 Init *Folded = Fold(&R, 0);
467 if (Folded != this) {
468 TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
470 return Typed->resolveBitReference(R, IRV, Bit);
477 Init *OpInit::resolveListElementReference(Record &R, const RecordVal *IRV,
479 Init *Folded = Fold(&R, 0);
481 if (Folded != this) {
482 TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
484 return Typed->resolveListElementReference(R, IRV, Elt);
491 Init *UnOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
492 switch (getOpcode()) {
493 default: assert(0 && "Unknown unop");
495 if (getType()->getAsString() == "string") {
496 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
501 DefInit *LHSd = dynamic_cast<DefInit*>(LHS);
503 return new StringInit(LHSd->getDef()->getName());
506 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
508 std::string Name = LHSs->getValue();
510 // From TGParser::ParseIDValue
512 if (const RecordVal *RV = CurRec->getValue(Name)) {
513 if (RV->getType() != getType()) {
514 throw "type mismatch in nameconcat";
516 return new VarInit(Name, RV->getType());
519 std::string TemplateArgName = CurRec->getName()+":"+Name;
520 if (CurRec->isTemplateArg(TemplateArgName)) {
521 const RecordVal *RV = CurRec->getValue(TemplateArgName);
522 assert(RV && "Template arg doesn't exist??");
524 if (RV->getType() != getType()) {
525 throw "type mismatch in nameconcat";
528 return new VarInit(TemplateArgName, RV->getType());
533 std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
534 if (CurMultiClass->Rec.isTemplateArg(MCName)) {
535 const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
536 assert(RV && "Template arg doesn't exist??");
538 if (RV->getType() != getType()) {
539 throw "type mismatch in nameconcat";
542 return new VarInit(MCName, RV->getType());
546 if (Record *D = Records.getDef(Name))
547 return new DefInit(D);
549 errs() << "Variable not defined: '" + Name + "'\n";
550 assert(0 && "Variable not found");
557 ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
559 if (LHSl->getSize() == 0) {
560 assert(0 && "Empty list in car");
563 return LHSl->getElement(0);
568 ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
570 if (LHSl->getSize() == 0) {
571 assert(0 && "Empty list in cdr");
574 ListInit *Result = new ListInit(LHSl->begin()+1, LHSl->end(),
581 ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
583 if (LHSl->getSize() == 0) {
584 return new IntInit(1);
586 return new IntInit(0);
589 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
591 if (LHSs->getValue().empty()) {
592 return new IntInit(1);
594 return new IntInit(0);
604 Init *UnOpInit::resolveReferences(Record &R, const RecordVal *RV) {
605 Init *lhs = LHS->resolveReferences(R, RV);
608 return (new UnOpInit(getOpcode(), lhs, getType()))->Fold(&R, 0);
612 std::string UnOpInit::getAsString() const {
615 case CAST: Result = "!cast<" + getType()->getAsString() + ">"; break;
616 case CAR: Result = "!car"; break;
617 case CDR: Result = "!cdr"; break;
618 case LNULL: Result = "!null"; break;
620 return Result + "(" + LHS->getAsString() + ")";
623 RecTy *UnOpInit::getFieldType(const std::string &FieldName) const {
624 switch (getOpcode()) {
625 default: assert(0 && "Unknown unop");
627 RecordRecTy *RecordType = dynamic_cast<RecordRecTy *>(getType());
629 RecordVal *Field = RecordType->getRecord()->getValue(FieldName);
631 return Field->getType();
640 Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
641 switch (getOpcode()) {
642 default: assert(0 && "Unknown binop");
644 DagInit *LHSs = dynamic_cast<DagInit*>(LHS);
645 DagInit *RHSs = dynamic_cast<DagInit*>(RHS);
647 DefInit *LOp = dynamic_cast<DefInit*>(LHSs->getOperator());
648 DefInit *ROp = dynamic_cast<DefInit*>(RHSs->getOperator());
649 if (LOp->getDef() != ROp->getDef()) {
651 LOp->getDef()->getName() == "outs" ||
652 LOp->getDef()->getName() != "ins" ||
653 LOp->getDef()->getName() != "defs";
655 ROp->getDef()->getName() == "outs" ||
656 ROp->getDef()->getName() != "ins" ||
657 ROp->getDef()->getName() != "defs";
658 if (!LIsOps || !RIsOps)
659 throw "Concated Dag operators do not match!";
661 std::vector<Init*> Args;
662 std::vector<std::string> ArgNames;
663 for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) {
664 Args.push_back(LHSs->getArg(i));
665 ArgNames.push_back(LHSs->getArgName(i));
667 for (unsigned i = 0, e = RHSs->getNumArgs(); i != e; ++i) {
668 Args.push_back(RHSs->getArg(i));
669 ArgNames.push_back(RHSs->getArgName(i));
671 return new DagInit(LHSs->getOperator(), "", Args, ArgNames);
676 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
677 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
679 return new StringInit(LHSs->getValue() + RHSs->getValue());
683 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
684 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
686 std::string Name(LHSs->getValue() + RHSs->getValue());
688 // From TGParser::ParseIDValue
690 if (const RecordVal *RV = CurRec->getValue(Name)) {
691 if (RV->getType() != getType()) {
692 throw "type mismatch in nameconcat";
694 return new VarInit(Name, RV->getType());
697 std::string TemplateArgName = CurRec->getName()+":"+Name;
698 if (CurRec->isTemplateArg(TemplateArgName)) {
699 const RecordVal *RV = CurRec->getValue(TemplateArgName);
700 assert(RV && "Template arg doesn't exist??");
702 if (RV->getType() != getType()) {
703 throw "type mismatch in nameconcat";
706 return new VarInit(TemplateArgName, RV->getType());
711 std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
712 if (CurMultiClass->Rec.isTemplateArg(MCName)) {
713 const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
714 assert(RV && "Template arg doesn't exist??");
716 if (RV->getType() != getType()) {
717 throw "type mismatch in nameconcat";
720 return new VarInit(MCName, RV->getType());
724 if (Record *D = Records.getDef(Name))
725 return new DefInit(D);
727 errs() << "Variable not defined in !nameconcat: '" + Name + "'\n";
728 assert(0 && "Variable not found in !nameconcat");
734 // Make sure we've resolved
735 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
736 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
738 return new IntInit(LHSs->getValue() == RHSs->getValue());
745 IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
746 IntInit *RHSi = dynamic_cast<IntInit*>(RHS);
748 int64_t LHSv = LHSi->getValue(), RHSv = RHSi->getValue();
750 switch (getOpcode()) {
751 default: assert(0 && "Bad opcode!");
752 case SHL: Result = LHSv << RHSv; break;
753 case SRA: Result = LHSv >> RHSv; break;
754 case SRL: Result = (uint64_t)LHSv >> (uint64_t)RHSv; break;
756 return new IntInit(Result);
764 Init *BinOpInit::resolveReferences(Record &R, const RecordVal *RV) {
765 Init *lhs = LHS->resolveReferences(R, RV);
766 Init *rhs = RHS->resolveReferences(R, RV);
768 if (LHS != lhs || RHS != rhs)
769 return (new BinOpInit(getOpcode(), lhs, rhs, getType()))->Fold(&R, 0);
773 std::string BinOpInit::getAsString() const {
776 case CONCAT: Result = "!con"; break;
777 case SHL: Result = "!shl"; break;
778 case SRA: Result = "!sra"; break;
779 case SRL: Result = "!srl"; break;
780 case EQ: Result = "!eq"; break;
781 case STRCONCAT: Result = "!strconcat"; break;
783 Result = "!nameconcat<" + getType()->getAsString() + ">"; break;
785 return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")";
788 static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
789 Record *CurRec, MultiClass *CurMultiClass);
791 static Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg,
792 RecTy *Type, Record *CurRec,
793 MultiClass *CurMultiClass) {
794 std::vector<Init *> NewOperands;
796 TypedInit *TArg = dynamic_cast<TypedInit*>(Arg);
798 // If this is a dag, recurse
799 if (TArg && TArg->getType()->getAsString() == "dag") {
800 Init *Result = ForeachHelper(LHS, Arg, RHSo, Type,
801 CurRec, CurMultiClass);
809 for (int i = 0; i < RHSo->getNumOperands(); ++i) {
810 OpInit *RHSoo = dynamic_cast<OpInit*>(RHSo->getOperand(i));
813 Init *Result = EvaluateOperation(RHSoo, LHS, Arg,
814 Type, CurRec, CurMultiClass);
816 NewOperands.push_back(Result);
818 NewOperands.push_back(Arg);
820 } else if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
821 NewOperands.push_back(Arg);
823 NewOperands.push_back(RHSo->getOperand(i));
827 // Now run the operator and use its result as the new leaf
828 OpInit *NewOp = RHSo->clone(NewOperands);
829 Init *NewVal = NewOp->Fold(CurRec, CurMultiClass);
830 if (NewVal != NewOp) {
837 static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
838 Record *CurRec, MultiClass *CurMultiClass) {
839 DagInit *MHSd = dynamic_cast<DagInit*>(MHS);
840 ListInit *MHSl = dynamic_cast<ListInit*>(MHS);
842 DagRecTy *DagType = dynamic_cast<DagRecTy*>(Type);
843 ListRecTy *ListType = dynamic_cast<ListRecTy*>(Type);
845 OpInit *RHSo = dynamic_cast<OpInit*>(RHS);
848 errs() << "!foreach requires an operator\n";
849 assert(0 && "No operator for !foreach");
852 TypedInit *LHSt = dynamic_cast<TypedInit*>(LHS);
855 errs() << "!foreach requires typed variable\n";
856 assert(0 && "No typed variable for !foreach");
859 if ((MHSd && DagType) || (MHSl && ListType)) {
861 Init *Val = MHSd->getOperator();
862 Init *Result = EvaluateOperation(RHSo, LHS, Val,
863 Type, CurRec, CurMultiClass);
868 std::vector<std::pair<Init *, std::string> > args;
869 for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) {
872 Arg = MHSd->getArg(i);
873 ArgName = MHSd->getArgName(i);
876 Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type,
877 CurRec, CurMultiClass);
882 // TODO: Process arg names
883 args.push_back(std::make_pair(Arg, ArgName));
886 return new DagInit(Val, "", args);
889 std::vector<Init *> NewOperands;
890 std::vector<Init *> NewList(MHSl->begin(), MHSl->end());
892 for (ListInit::iterator li = NewList.begin(),
893 liend = NewList.end();
898 for(int i = 0; i < RHSo->getNumOperands(); ++i) {
899 // First, replace the foreach variable with the list item
900 if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
901 NewOperands.push_back(Item);
903 NewOperands.push_back(RHSo->getOperand(i));
907 // Now run the operator and use its result as the new list item
908 OpInit *NewOp = RHSo->clone(NewOperands);
909 Init *NewItem = NewOp->Fold(CurRec, CurMultiClass);
910 if (NewItem != NewOp) {
915 return new ListInit(NewList, MHSl->getType());
921 Init *TernOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
922 switch (getOpcode()) {
923 default: assert(0 && "Unknown binop");
925 DefInit *LHSd = dynamic_cast<DefInit*>(LHS);
926 VarInit *LHSv = dynamic_cast<VarInit*>(LHS);
927 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
929 DefInit *MHSd = dynamic_cast<DefInit*>(MHS);
930 VarInit *MHSv = dynamic_cast<VarInit*>(MHS);
931 StringInit *MHSs = dynamic_cast<StringInit*>(MHS);
933 DefInit *RHSd = dynamic_cast<DefInit*>(RHS);
934 VarInit *RHSv = dynamic_cast<VarInit*>(RHS);
935 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
937 if ((LHSd && MHSd && RHSd)
938 || (LHSv && MHSv && RHSv)
939 || (LHSs && MHSs && RHSs)) {
941 Record *Val = RHSd->getDef();
942 if (LHSd->getAsString() == RHSd->getAsString()) {
943 Val = MHSd->getDef();
945 return new DefInit(Val);
948 std::string Val = RHSv->getName();
949 if (LHSv->getAsString() == RHSv->getAsString()) {
950 Val = MHSv->getName();
952 return new VarInit(Val, getType());
955 std::string Val = RHSs->getValue();
957 std::string::size_type found;
958 std::string::size_type idx = 0;
960 found = Val.find(LHSs->getValue(), idx);
961 if (found != std::string::npos) {
962 Val.replace(found, LHSs->getValue().size(), MHSs->getValue());
964 idx = found + MHSs->getValue().size();
965 } while (found != std::string::npos);
967 return new StringInit(Val);
974 Init *Result = ForeachHelper(LHS, MHS, RHS, getType(),
975 CurRec, CurMultiClass);
983 IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
985 if (LHSi->getValue()) {
998 Init *TernOpInit::resolveReferences(Record &R, const RecordVal *RV) {
999 Init *lhs = LHS->resolveReferences(R, RV);
1001 if (Opc == IF && lhs != LHS) {
1002 IntInit *Value = dynamic_cast<IntInit*>(lhs);
1005 if (Value->getValue()) {
1006 Init *mhs = MHS->resolveReferences(R, RV);
1007 return (new TernOpInit(getOpcode(), lhs, mhs,
1008 RHS, getType()))->Fold(&R, 0);
1010 Init *rhs = RHS->resolveReferences(R, RV);
1011 return (new TernOpInit(getOpcode(), lhs, MHS,
1012 rhs, getType()))->Fold(&R, 0);
1017 Init *mhs = MHS->resolveReferences(R, RV);
1018 Init *rhs = RHS->resolveReferences(R, RV);
1020 if (LHS != lhs || MHS != mhs || RHS != rhs)
1021 return (new TernOpInit(getOpcode(), lhs, mhs, rhs, getType()))->Fold(&R, 0);
1025 std::string TernOpInit::getAsString() const {
1028 case SUBST: Result = "!subst"; break;
1029 case FOREACH: Result = "!foreach"; break;
1030 case IF: Result = "!if"; break;
1032 return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", "
1033 + RHS->getAsString() + ")";
1036 Init *TypedInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
1037 BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
1038 if (T == 0) return 0; // Cannot subscript a non-bits variable...
1039 unsigned NumBits = T->getNumBits();
1041 BitsInit *BI = new BitsInit(Bits.size());
1042 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
1043 if (Bits[i] >= NumBits) {
1047 BI->setBit(i, new VarBitInit(this, Bits[i]));
1052 Init *TypedInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
1053 ListRecTy *T = dynamic_cast<ListRecTy*>(getType());
1054 if (T == 0) return 0; // Cannot subscript a non-list variable...
1056 if (Elements.size() == 1)
1057 return new VarListElementInit(this, Elements[0]);
1059 std::vector<Init*> ListInits;
1060 ListInits.reserve(Elements.size());
1061 for (unsigned i = 0, e = Elements.size(); i != e; ++i)
1062 ListInits.push_back(new VarListElementInit(this, Elements[i]));
1063 return new ListInit(ListInits, T);
1067 Init *VarInit::resolveBitReference(Record &R, const RecordVal *IRV,
1069 if (R.isTemplateArg(getName())) return 0;
1070 if (IRV && IRV->getName() != getName()) return 0;
1072 RecordVal *RV = R.getValue(getName());
1073 assert(RV && "Reference to a non-existent variable?");
1074 assert(dynamic_cast<BitsInit*>(RV->getValue()));
1075 BitsInit *BI = (BitsInit*)RV->getValue();
1077 assert(Bit < BI->getNumBits() && "Bit reference out of range!");
1078 Init *B = BI->getBit(Bit);
1080 // If the bit is set to some value, or if we are resolving a reference to a
1081 // specific variable and that variable is explicitly unset, then replace the
1082 // VarBitInit with it.
1083 if (IRV || !dynamic_cast<UnsetInit*>(B))
1088 Init *VarInit::resolveListElementReference(Record &R, const RecordVal *IRV,
1090 if (R.isTemplateArg(getName())) return 0;
1091 if (IRV && IRV->getName() != getName()) return 0;
1093 RecordVal *RV = R.getValue(getName());
1094 assert(RV && "Reference to a non-existent variable?");
1095 ListInit *LI = dynamic_cast<ListInit*>(RV->getValue());
1097 VarInit *VI = dynamic_cast<VarInit*>(RV->getValue());
1098 assert(VI && "Invalid list element!");
1099 return new VarListElementInit(VI, Elt);
1102 if (Elt >= LI->getSize())
1103 return 0; // Out of range reference.
1104 Init *E = LI->getElement(Elt);
1105 // If the element is set to some value, or if we are resolving a reference
1106 // to a specific variable and that variable is explicitly unset, then
1107 // replace the VarListElementInit with it.
1108 if (IRV || !dynamic_cast<UnsetInit*>(E))
1114 RecTy *VarInit::getFieldType(const std::string &FieldName) const {
1115 if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
1116 if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
1117 return RV->getType();
1121 Init *VarInit::getFieldInit(Record &R, const std::string &FieldName) const {
1122 if (dynamic_cast<RecordRecTy*>(getType()))
1123 if (const RecordVal *RV = R.getValue(VarName)) {
1124 Init *TheInit = RV->getValue();
1125 assert(TheInit != this && "Infinite loop detected!");
1126 if (Init *I = TheInit->getFieldInit(R, FieldName))
1134 /// resolveReferences - This method is used by classes that refer to other
1135 /// variables which may not be defined at the time the expression is formed.
1136 /// If a value is set for the variable later, this method will be called on
1137 /// users of the value to allow the value to propagate out.
1139 Init *VarInit::resolveReferences(Record &R, const RecordVal *RV) {
1140 if (RecordVal *Val = R.getValue(VarName))
1141 if (RV == Val || (RV == 0 && !dynamic_cast<UnsetInit*>(Val->getValue())))
1142 return Val->getValue();
1146 std::string VarBitInit::getAsString() const {
1147 return TI->getAsString() + "{" + utostr(Bit) + "}";
1150 Init *VarBitInit::resolveReferences(Record &R, const RecordVal *RV) {
1151 if (Init *I = getVariable()->resolveBitReference(R, RV, getBitNum()))
1156 std::string VarListElementInit::getAsString() const {
1157 return TI->getAsString() + "[" + utostr(Element) + "]";
1160 Init *VarListElementInit::resolveReferences(Record &R, const RecordVal *RV) {
1161 if (Init *I = getVariable()->resolveListElementReference(R, RV,
1167 Init *VarListElementInit::resolveBitReference(Record &R, const RecordVal *RV,
1169 // FIXME: This should be implemented, to support references like:
1170 // bit B = AA[0]{1};
1174 Init *VarListElementInit::
1175 resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) {
1176 // FIXME: This should be implemented, to support references like:
1177 // int B = AA[0][1];
1181 RecTy *DefInit::getFieldType(const std::string &FieldName) const {
1182 if (const RecordVal *RV = Def->getValue(FieldName))
1183 return RV->getType();
1187 Init *DefInit::getFieldInit(Record &R, const std::string &FieldName) const {
1188 return Def->getValue(FieldName)->getValue();
1192 std::string DefInit::getAsString() const {
1193 return Def->getName();
1196 Init *FieldInit::resolveBitReference(Record &R, const RecordVal *RV,
1198 if (Init *BitsVal = Rec->getFieldInit(R, FieldName))
1199 if (BitsInit *BI = dynamic_cast<BitsInit*>(BitsVal)) {
1200 assert(Bit < BI->getNumBits() && "Bit reference out of range!");
1201 Init *B = BI->getBit(Bit);
1203 if (dynamic_cast<BitInit*>(B)) // If the bit is set...
1204 return B; // Replace the VarBitInit with it.
1209 Init *FieldInit::resolveListElementReference(Record &R, const RecordVal *RV,
1211 if (Init *ListVal = Rec->getFieldInit(R, FieldName))
1212 if (ListInit *LI = dynamic_cast<ListInit*>(ListVal)) {
1213 if (Elt >= LI->getSize()) return 0;
1214 Init *E = LI->getElement(Elt);
1216 // If the element is set to some value, or if we are resolving a
1217 // reference to a specific variable and that variable is explicitly
1218 // unset, then replace the VarListElementInit with it.
1219 if (RV || !dynamic_cast<UnsetInit*>(E))
1225 Init *FieldInit::resolveReferences(Record &R, const RecordVal *RV) {
1226 Init *NewRec = RV ? Rec->resolveReferences(R, RV) : Rec;
1228 Init *BitsVal = NewRec->getFieldInit(R, FieldName);
1230 Init *BVR = BitsVal->resolveReferences(R, RV);
1231 return BVR->isComplete() ? BVR : this;
1234 if (NewRec != Rec) {
1235 return new FieldInit(NewRec, FieldName);
1240 Init *DagInit::resolveReferences(Record &R, const RecordVal *RV) {
1241 std::vector<Init*> NewArgs;
1242 for (unsigned i = 0, e = Args.size(); i != e; ++i)
1243 NewArgs.push_back(Args[i]->resolveReferences(R, RV));
1245 Init *Op = Val->resolveReferences(R, RV);
1247 if (Args != NewArgs || Op != Val)
1248 return new DagInit(Op, "", NewArgs, ArgNames);
1254 std::string DagInit::getAsString() const {
1255 std::string Result = "(" + Val->getAsString();
1256 if (!ValName.empty())
1257 Result += ":" + ValName;
1259 Result += " " + Args[0]->getAsString();
1260 if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0];
1261 for (unsigned i = 1, e = Args.size(); i != e; ++i) {
1262 Result += ", " + Args[i]->getAsString();
1263 if (!ArgNames[i].empty()) Result += ":$" + ArgNames[i];
1266 return Result + ")";
1270 //===----------------------------------------------------------------------===//
1271 // Other implementations
1272 //===----------------------------------------------------------------------===//
1274 RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
1275 : Name(N), Ty(T), Prefix(P) {
1276 Value = Ty->convertValue(new UnsetInit());
1277 assert(Value && "Cannot create unset value for current type!");
1280 void RecordVal::dump() const { errs() << *this; }
1282 void RecordVal::print(raw_ostream &OS, bool PrintSem) const {
1283 if (getPrefix()) OS << "field ";
1284 OS << *getType() << " " << getName();
1287 OS << " = " << *getValue();
1289 if (PrintSem) OS << ";\n";
1292 unsigned Record::LastID = 0;
1294 void Record::setName(const std::string &Name) {
1295 if (Records.getDef(getName()) == this) {
1296 Records.removeDef(getName());
1298 Records.addDef(this);
1300 Records.removeClass(getName());
1302 Records.addClass(this);
1306 /// resolveReferencesTo - If anything in this record refers to RV, replace the
1307 /// reference to RV with the RHS of RV. If RV is null, we resolve all possible
1309 void Record::resolveReferencesTo(const RecordVal *RV) {
1310 for (unsigned i = 0, e = Values.size(); i != e; ++i) {
1311 if (Init *V = Values[i].getValue())
1312 Values[i].setValue(V->resolveReferences(*this, RV));
1317 void Record::dump() const { errs() << *this; }
1319 raw_ostream &llvm::operator<<(raw_ostream &OS, const Record &R) {
1322 const std::vector<std::string> &TArgs = R.getTemplateArgs();
1323 if (!TArgs.empty()) {
1325 for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
1327 const RecordVal *RV = R.getValue(TArgs[i]);
1328 assert(RV && "Template argument record not found??");
1329 RV->print(OS, false);
1335 const std::vector<Record*> &SC = R.getSuperClasses();
1338 for (unsigned i = 0, e = SC.size(); i != e; ++i)
1339 OS << " " << SC[i]->getName();
1343 const std::vector<RecordVal> &Vals = R.getValues();
1344 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
1345 if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
1347 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
1348 if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
1354 /// getValueInit - Return the initializer for a value with the specified name,
1355 /// or throw an exception if the field does not exist.
1357 Init *Record::getValueInit(StringRef FieldName) const {
1358 const RecordVal *R = getValue(FieldName);
1359 if (R == 0 || R->getValue() == 0)
1360 throw "Record `" + getName() + "' does not have a field named `" +
1361 FieldName.str() + "'!\n";
1362 return R->getValue();
1366 /// getValueAsString - This method looks up the specified field and returns its
1367 /// value as a string, throwing an exception if the field does not exist or if
1368 /// the value is not a string.
1370 std::string Record::getValueAsString(StringRef FieldName) const {
1371 const RecordVal *R = getValue(FieldName);
1372 if (R == 0 || R->getValue() == 0)
1373 throw "Record `" + getName() + "' does not have a field named `" +
1374 FieldName.str() + "'!\n";
1376 if (const StringInit *SI = dynamic_cast<const StringInit*>(R->getValue()))
1377 return SI->getValue();
1378 throw "Record `" + getName() + "', field `" + FieldName.str() +
1379 "' does not have a string initializer!";
1382 /// getValueAsBitsInit - This method looks up the specified field and returns
1383 /// its value as a BitsInit, throwing an exception if the field does not exist
1384 /// or if the value is not the right type.
1386 BitsInit *Record::getValueAsBitsInit(StringRef FieldName) const {
1387 const RecordVal *R = getValue(FieldName);
1388 if (R == 0 || R->getValue() == 0)
1389 throw "Record `" + getName() + "' does not have a field named `" +
1390 FieldName.str() + "'!\n";
1392 if (BitsInit *BI = dynamic_cast<BitsInit*>(R->getValue()))
1394 throw "Record `" + getName() + "', field `" + FieldName.str() +
1395 "' does not have a BitsInit initializer!";
1398 /// getValueAsListInit - This method looks up the specified field and returns
1399 /// its value as a ListInit, throwing an exception if the field does not exist
1400 /// or if the value is not the right type.
1402 ListInit *Record::getValueAsListInit(StringRef FieldName) const {
1403 const RecordVal *R = getValue(FieldName);
1404 if (R == 0 || R->getValue() == 0)
1405 throw "Record `" + getName() + "' does not have a field named `" +
1406 FieldName.str() + "'!\n";
1408 if (ListInit *LI = dynamic_cast<ListInit*>(R->getValue()))
1410 throw "Record `" + getName() + "', field `" + FieldName.str() +
1411 "' does not have a list initializer!";
1414 /// getValueAsListOfDefs - This method looks up the specified field and returns
1415 /// its value as a vector of records, throwing an exception if the field does
1416 /// not exist or if the value is not the right type.
1418 std::vector<Record*>
1419 Record::getValueAsListOfDefs(StringRef FieldName) const {
1420 ListInit *List = getValueAsListInit(FieldName);
1421 std::vector<Record*> Defs;
1422 for (unsigned i = 0; i < List->getSize(); i++) {
1423 if (DefInit *DI = dynamic_cast<DefInit*>(List->getElement(i))) {
1424 Defs.push_back(DI->getDef());
1426 throw "Record `" + getName() + "', field `" + FieldName.str() +
1427 "' list is not entirely DefInit!";
1433 /// getValueAsInt - This method looks up the specified field and returns its
1434 /// value as an int64_t, throwing an exception if the field does not exist or if
1435 /// the value is not the right type.
1437 int64_t Record::getValueAsInt(StringRef FieldName) const {
1438 const RecordVal *R = getValue(FieldName);
1439 if (R == 0 || R->getValue() == 0)
1440 throw "Record `" + getName() + "' does not have a field named `" +
1441 FieldName.str() + "'!\n";
1443 if (IntInit *II = dynamic_cast<IntInit*>(R->getValue()))
1444 return II->getValue();
1445 throw "Record `" + getName() + "', field `" + FieldName.str() +
1446 "' does not have an int initializer!";
1449 /// getValueAsListOfInts - This method looks up the specified field and returns
1450 /// its value as a vector of integers, throwing an exception if the field does
1451 /// not exist or if the value is not the right type.
1453 std::vector<int64_t>
1454 Record::getValueAsListOfInts(StringRef FieldName) const {
1455 ListInit *List = getValueAsListInit(FieldName);
1456 std::vector<int64_t> Ints;
1457 for (unsigned i = 0; i < List->getSize(); i++) {
1458 if (IntInit *II = dynamic_cast<IntInit*>(List->getElement(i))) {
1459 Ints.push_back(II->getValue());
1461 throw "Record `" + getName() + "', field `" + FieldName.str() +
1462 "' does not have a list of ints initializer!";
1468 /// getValueAsDef - This method looks up the specified field and returns its
1469 /// value as a Record, throwing an exception if the field does not exist or if
1470 /// the value is not the right type.
1472 Record *Record::getValueAsDef(StringRef FieldName) const {
1473 const RecordVal *R = getValue(FieldName);
1474 if (R == 0 || R->getValue() == 0)
1475 throw "Record `" + getName() + "' does not have a field named `" +
1476 FieldName.str() + "'!\n";
1478 if (DefInit *DI = dynamic_cast<DefInit*>(R->getValue()))
1479 return DI->getDef();
1480 throw "Record `" + getName() + "', field `" + FieldName.str() +
1481 "' does not have a def initializer!";
1484 /// getValueAsBit - This method looks up the specified field and returns its
1485 /// value as a bit, throwing an exception if the field does not exist or if
1486 /// the value is not the right type.
1488 bool Record::getValueAsBit(StringRef FieldName) const {
1489 const RecordVal *R = getValue(FieldName);
1490 if (R == 0 || R->getValue() == 0)
1491 throw "Record `" + getName() + "' does not have a field named `" +
1492 FieldName.str() + "'!\n";
1494 if (BitInit *BI = dynamic_cast<BitInit*>(R->getValue()))
1495 return BI->getValue();
1496 throw "Record `" + getName() + "', field `" + FieldName.str() +
1497 "' does not have a bit initializer!";
1500 /// getValueAsDag - This method looks up the specified field and returns its
1501 /// value as an Dag, throwing an exception if the field does not exist or if
1502 /// the value is not the right type.
1504 DagInit *Record::getValueAsDag(StringRef FieldName) const {
1505 const RecordVal *R = getValue(FieldName);
1506 if (R == 0 || R->getValue() == 0)
1507 throw "Record `" + getName() + "' does not have a field named `" +
1508 FieldName.str() + "'!\n";
1510 if (DagInit *DI = dynamic_cast<DagInit*>(R->getValue()))
1512 throw "Record `" + getName() + "', field `" + FieldName.str() +
1513 "' does not have a dag initializer!";
1516 std::string Record::getValueAsCode(StringRef FieldName) const {
1517 const RecordVal *R = getValue(FieldName);
1518 if (R == 0 || R->getValue() == 0)
1519 throw "Record `" + getName() + "' does not have a field named `" +
1520 FieldName.str() + "'!\n";
1522 if (const CodeInit *CI = dynamic_cast<const CodeInit*>(R->getValue()))
1523 return CI->getValue();
1524 throw "Record `" + getName() + "', field `" + FieldName.str() +
1525 "' does not have a code initializer!";
1529 void MultiClass::dump() const {
1530 errs() << "Record:\n";
1533 errs() << "Defs:\n";
1534 for (RecordVector::const_iterator r = DefPrototypes.begin(),
1535 rend = DefPrototypes.end();
1543 void RecordKeeper::dump() const { errs() << *this; }
1545 raw_ostream &llvm::operator<<(raw_ostream &OS, const RecordKeeper &RK) {
1546 OS << "------------- Classes -----------------\n";
1547 const std::map<std::string, Record*> &Classes = RK.getClasses();
1548 for (std::map<std::string, Record*>::const_iterator I = Classes.begin(),
1549 E = Classes.end(); I != E; ++I)
1550 OS << "class " << *I->second;
1552 OS << "------------- Defs -----------------\n";
1553 const std::map<std::string, Record*> &Defs = RK.getDefs();
1554 for (std::map<std::string, Record*>::const_iterator I = Defs.begin(),
1555 E = Defs.end(); I != E; ++I)
1556 OS << "def " << *I->second;
1561 /// getAllDerivedDefinitions - This method returns all concrete definitions
1562 /// that derive from the specified class name. If a class with the specified
1563 /// name does not exist, an error is printed and true is returned.
1564 std::vector<Record*>
1565 RecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const {
1566 Record *Class = Records.getClass(ClassName);
1568 throw "ERROR: Couldn't find the `" + ClassName + "' class!\n";
1570 std::vector<Record*> Defs;
1571 for (std::map<std::string, Record*>::const_iterator I = getDefs().begin(),
1572 E = getDefs().end(); I != E; ++I)
1573 if (I->second->isSubClassOf(Class))
1574 Defs.push_back(I->second);