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/Support/DataTypes.h"
16 #include "llvm/Support/Streams.h"
17 #include "llvm/ADT/StringExtras.h"
22 //===----------------------------------------------------------------------===//
23 // Type implementations
24 //===----------------------------------------------------------------------===//
26 void RecTy::dump() const { print(*cerr.stream()); }
28 Init *BitRecTy::convertValue(BitsInit *BI) {
29 if (BI->getNumBits() != 1) return 0; // Only accept if just one bit!
33 bool BitRecTy::baseClassOf(const BitsRecTy *RHS) const {
34 return RHS->getNumBits() == 1;
37 Init *BitRecTy::convertValue(IntInit *II) {
38 int64_t Val = II->getValue();
39 if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit!
41 return new BitInit(Val != 0);
44 Init *BitRecTy::convertValue(TypedInit *VI) {
45 if (dynamic_cast<BitRecTy*>(VI->getType()))
46 return VI; // Accept variable if it is already of bit type!
50 std::string BitsRecTy::getAsString() const {
51 return "bits<" + utostr(Size) + ">";
54 Init *BitsRecTy::convertValue(UnsetInit *UI) {
55 BitsInit *Ret = new BitsInit(Size);
57 for (unsigned i = 0; i != Size; ++i)
58 Ret->setBit(i, new UnsetInit());
62 Init *BitsRecTy::convertValue(BitInit *UI) {
63 if (Size != 1) return 0; // Can only convert single bit...
64 BitsInit *Ret = new BitsInit(1);
69 // convertValue from Int initializer to bits type: Split the integer up into the
70 // appropriate bits...
72 Init *BitsRecTy::convertValue(IntInit *II) {
73 int64_t Value = II->getValue();
74 // Make sure this bitfield is large enough to hold the integer value...
76 if (Value & ~((1LL << Size)-1))
79 if ((Value >> Size) != -1 || ((Value & (1LL << (Size-1))) == 0))
83 BitsInit *Ret = new BitsInit(Size);
84 for (unsigned i = 0; i != Size; ++i)
85 Ret->setBit(i, new BitInit(Value & (1LL << i)));
90 Init *BitsRecTy::convertValue(BitsInit *BI) {
91 // If the number of bits is right, return it. Otherwise we need to expand or
93 if (BI->getNumBits() == Size) return BI;
97 Init *BitsRecTy::convertValue(TypedInit *VI) {
98 if (BitsRecTy *BRT = dynamic_cast<BitsRecTy*>(VI->getType()))
99 if (BRT->Size == Size) {
100 BitsInit *Ret = new BitsInit(Size);
101 for (unsigned i = 0; i != Size; ++i)
102 Ret->setBit(i, new VarBitInit(VI, i));
105 if (Size == 1 && dynamic_cast<BitRecTy*>(VI->getType())) {
106 BitsInit *Ret = new BitsInit(1);
114 Init *IntRecTy::convertValue(BitInit *BI) {
115 return new IntInit(BI->getValue());
118 Init *IntRecTy::convertValue(BitsInit *BI) {
120 for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
121 if (BitInit *Bit = dynamic_cast<BitInit*>(BI->getBit(i))) {
122 Result |= Bit->getValue() << i;
126 return new IntInit(Result);
129 Init *IntRecTy::convertValue(TypedInit *TI) {
130 if (TI->getType()->typeIsConvertibleTo(this))
131 return TI; // Accept variable if already of the right type!
135 Init *StringRecTy::convertValue(UnOpInit *BO) {
136 if (BO->getOpcode() == UnOpInit::CAST) {
137 Init *L = BO->getOperand()->convertInitializerTo(this);
138 if (L == 0) return 0;
139 if (L != BO->getOperand())
140 return new UnOpInit(UnOpInit::CAST, L, new StringRecTy);
144 return convertValue((TypedInit*)BO);
147 Init *StringRecTy::convertValue(BinOpInit *BO) {
148 if (BO->getOpcode() == BinOpInit::STRCONCAT) {
149 Init *L = BO->getLHS()->convertInitializerTo(this);
150 Init *R = BO->getRHS()->convertInitializerTo(this);
151 if (L == 0 || R == 0) return 0;
152 if (L != BO->getLHS() || R != BO->getRHS())
153 return new BinOpInit(BinOpInit::STRCONCAT, L, R, new StringRecTy);
156 if (BO->getOpcode() == BinOpInit::NAMECONCAT) {
157 if (BO->getType()->getAsString() == getAsString()) {
158 Init *L = BO->getLHS()->convertInitializerTo(this);
159 Init *R = BO->getRHS()->convertInitializerTo(this);
160 if (L == 0 || R == 0) return 0;
161 if (L != BO->getLHS() || R != BO->getRHS())
162 return new BinOpInit(BinOpInit::NAMECONCAT, L, R, new StringRecTy);
167 return convertValue((TypedInit*)BO);
171 Init *StringRecTy::convertValue(TypedInit *TI) {
172 if (dynamic_cast<StringRecTy*>(TI->getType()))
173 return TI; // Accept variable if already of the right type!
177 std::string ListRecTy::getAsString() const {
178 return "list<" + Ty->getAsString() + ">";
181 Init *ListRecTy::convertValue(ListInit *LI) {
182 std::vector<Init*> Elements;
184 // Verify that all of the elements of the list are subclasses of the
185 // appropriate class!
186 for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
187 if (Init *CI = LI->getElement(i)->convertInitializerTo(Ty))
188 Elements.push_back(CI);
192 return new ListInit(Elements);
195 Init *ListRecTy::convertValue(TypedInit *TI) {
196 // Ensure that TI is compatible with our class.
197 if (ListRecTy *LRT = dynamic_cast<ListRecTy*>(TI->getType()))
198 if (LRT->getElementType()->typeIsConvertibleTo(getElementType()))
203 Init *CodeRecTy::convertValue(TypedInit *TI) {
204 if (TI->getType()->typeIsConvertibleTo(this))
209 Init *DagRecTy::convertValue(TypedInit *TI) {
210 if (TI->getType()->typeIsConvertibleTo(this))
215 Init *DagRecTy::convertValue(UnOpInit *BO) {
216 if (BO->getOpcode() == UnOpInit::CAST) {
217 Init *L = BO->getOperand()->convertInitializerTo(this);
218 if (L == 0) return 0;
219 if (L != BO->getOperand())
220 return new UnOpInit(UnOpInit::CAST, L, new DagRecTy);
226 Init *DagRecTy::convertValue(BinOpInit *BO) {
227 if (BO->getOpcode() == BinOpInit::CONCAT) {
228 Init *L = BO->getLHS()->convertInitializerTo(this);
229 Init *R = BO->getRHS()->convertInitializerTo(this);
230 if (L == 0 || R == 0) return 0;
231 if (L != BO->getLHS() || R != BO->getRHS())
232 return new BinOpInit(BinOpInit::CONCAT, L, R, new DagRecTy);
235 if (BO->getOpcode() == BinOpInit::NAMECONCAT) {
236 if (BO->getType()->getAsString() == getAsString()) {
237 Init *L = BO->getLHS()->convertInitializerTo(this);
238 Init *R = BO->getRHS()->convertInitializerTo(this);
239 if (L == 0 || R == 0) return 0;
240 if (L != BO->getLHS() || R != BO->getRHS())
241 return new BinOpInit(BinOpInit::CONCAT, L, R, new DagRecTy);
248 std::string RecordRecTy::getAsString() const {
249 return Rec->getName();
252 Init *RecordRecTy::convertValue(DefInit *DI) {
253 // Ensure that DI is a subclass of Rec.
254 if (!DI->getDef()->isSubClassOf(Rec))
259 Init *RecordRecTy::convertValue(TypedInit *TI) {
260 // Ensure that TI is compatible with Rec.
261 if (RecordRecTy *RRT = dynamic_cast<RecordRecTy*>(TI->getType()))
262 if (RRT->getRecord()->isSubClassOf(getRecord()) ||
263 RRT->getRecord() == getRecord())
268 bool RecordRecTy::baseClassOf(const RecordRecTy *RHS) const {
269 return Rec == RHS->getRecord() || RHS->getRecord()->isSubClassOf(Rec);
273 //===----------------------------------------------------------------------===//
274 // Initializer implementations
275 //===----------------------------------------------------------------------===//
277 void Init::dump() const { return print(*cerr.stream()); }
279 Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
280 BitsInit *BI = new BitsInit(Bits.size());
281 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
282 if (Bits[i] >= getNumBits()) {
286 BI->setBit(i, getBit(Bits[i]));
291 std::string BitsInit::getAsString() const {
292 //if (!printInHex(OS)) return;
293 //if (!printAsVariable(OS)) return;
294 //if (!printAsUnset(OS)) return;
296 std::string Result = "{ ";
297 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
298 if (i) Result += ", ";
299 if (Init *Bit = getBit(e-i-1))
300 Result += Bit->getAsString();
304 return Result + " }";
307 bool BitsInit::printInHex(std::ostream &OS) const {
308 // First, attempt to convert the value into an integer value...
310 for (unsigned i = 0, e = getNumBits(); i != e; ++i)
311 if (BitInit *Bit = dynamic_cast<BitInit*>(getBit(i))) {
312 Result |= Bit->getValue() << i;
317 OS << "0x" << std::hex << Result << std::dec;
321 bool BitsInit::printAsVariable(std::ostream &OS) const {
322 // Get the variable that we may be set equal to...
323 assert(getNumBits() != 0);
324 VarBitInit *FirstBit = dynamic_cast<VarBitInit*>(getBit(0));
325 if (FirstBit == 0) return true;
326 TypedInit *Var = FirstBit->getVariable();
328 // Check to make sure the types are compatible.
329 BitsRecTy *Ty = dynamic_cast<BitsRecTy*>(FirstBit->getVariable()->getType());
330 if (Ty == 0) return true;
331 if (Ty->getNumBits() != getNumBits()) return true; // Incompatible types!
333 // Check to make sure all bits are referring to the right bits in the variable
334 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
335 VarBitInit *Bit = dynamic_cast<VarBitInit*>(getBit(i));
336 if (Bit == 0 || Bit->getVariable() != Var || Bit->getBitNum() != i)
344 bool BitsInit::printAsUnset(std::ostream &OS) const {
345 for (unsigned i = 0, e = getNumBits(); i != e; ++i)
346 if (!dynamic_cast<UnsetInit*>(getBit(i)))
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 Init *BitsInit::resolveReferences(Record &R, const RecordVal *RV) {
356 bool Changed = false;
357 BitsInit *New = new BitsInit(getNumBits());
359 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
361 Init *CurBit = getBit(i);
365 CurBit = CurBit->resolveReferences(R, RV);
366 Changed |= B != CurBit;
367 } while (B != CurBit);
368 New->setBit(i, CurBit);
377 std::string IntInit::getAsString() const {
378 return itostr(Value);
381 Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
382 BitsInit *BI = new BitsInit(Bits.size());
384 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
389 BI->setBit(i, new BitInit(Value & (INT64_C(1) << Bits[i])));
394 Init *ListInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
395 std::vector<Init*> Vals;
396 for (unsigned i = 0, e = Elements.size(); i != e; ++i) {
397 if (Elements[i] >= getSize())
399 Vals.push_back(getElement(Elements[i]));
401 return new ListInit(Vals);
404 Record *ListInit::getElementAsRecord(unsigned i) const {
405 assert(i < Values.size() && "List element index out of range!");
406 DefInit *DI = dynamic_cast<DefInit*>(Values[i]);
407 if (DI == 0) throw "Expected record in list!";
411 Init *ListInit::resolveReferences(Record &R, const RecordVal *RV) {
412 std::vector<Init*> Resolved;
413 Resolved.reserve(getSize());
414 bool Changed = false;
416 for (unsigned i = 0, e = getSize(); i != e; ++i) {
418 Init *CurElt = getElement(i);
422 CurElt = CurElt->resolveReferences(R, RV);
423 Changed |= E != CurElt;
424 } while (E != CurElt);
425 Resolved.push_back(E);
429 return new ListInit(Resolved);
433 std::string ListInit::getAsString() const {
434 std::string Result = "[";
435 for (unsigned i = 0, e = Values.size(); i != e; ++i) {
436 if (i) Result += ", ";
437 Result += Values[i]->getAsString();
442 Init *OpInit::resolveBitReference(Record &R, const RecordVal *IRV,
444 Init *Folded = Fold(&R, 0);
446 if (Folded != this) {
447 TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
449 return Typed->resolveBitReference(R, IRV, Bit);
456 Init *OpInit::resolveListElementReference(Record &R, const RecordVal *IRV,
458 Init *Folded = Fold(&R, 0);
460 if (Folded != this) {
461 TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
463 return Typed->resolveListElementReference(R, IRV, Elt);
470 Init *UnOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
471 switch (getOpcode()) {
472 default: assert(0 && "Unknown unop");
474 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
476 std::string Name = LHSs->getValue();
478 // From TGParser::ParseIDValue
480 if (const RecordVal *RV = CurRec->getValue(Name)) {
481 if (RV->getType() != getType()) {
482 throw "type mismatch in nameconcat";
484 return new VarInit(Name, RV->getType());
487 std::string TemplateArgName = CurRec->getName()+":"+Name;
488 if (CurRec->isTemplateArg(TemplateArgName)) {
489 const RecordVal *RV = CurRec->getValue(TemplateArgName);
490 assert(RV && "Template arg doesn't exist??");
492 if (RV->getType() != getType()) {
493 throw "type mismatch in nameconcat";
496 return new VarInit(TemplateArgName, RV->getType());
501 std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
502 if (CurMultiClass->Rec.isTemplateArg(MCName)) {
503 const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
504 assert(RV && "Template arg doesn't exist??");
506 if (RV->getType() != getType()) {
507 throw "type mismatch in nameconcat";
510 return new VarInit(MCName, RV->getType());
514 if (Record *D = Records.getDef(Name))
515 return new DefInit(D);
517 cerr << "Variable not defined: '" + Name + "'\n";
518 assert(0 && "Variable not found");
527 Init *UnOpInit::resolveReferences(Record &R, const RecordVal *RV) {
528 Init *lhs = LHS->resolveReferences(R, RV);
531 return (new UnOpInit(getOpcode(), lhs, getType()))->Fold(&R, 0);
535 std::string UnOpInit::getAsString() const {
538 case CAST: Result = "!cast<" + getType()->getAsString() + ">"; break;
540 return Result + "(" + LHS->getAsString() + ")";
543 Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
544 switch (getOpcode()) {
545 default: assert(0 && "Unknown binop");
547 DagInit *LHSs = dynamic_cast<DagInit*>(LHS);
548 DagInit *RHSs = dynamic_cast<DagInit*>(RHS);
550 DefInit *LOp = dynamic_cast<DefInit*>(LHSs->getOperator());
551 DefInit *ROp = dynamic_cast<DefInit*>(RHSs->getOperator());
552 if (LOp->getDef() != ROp->getDef()) {
554 LOp->getDef()->getName() == "outs" ||
555 LOp->getDef()->getName() != "ins" ||
556 LOp->getDef()->getName() != "defs";
558 ROp->getDef()->getName() == "outs" ||
559 ROp->getDef()->getName() != "ins" ||
560 ROp->getDef()->getName() != "defs";
561 if (!LIsOps || !RIsOps)
562 throw "Concated Dag operators do not match!";
564 std::vector<Init*> Args;
565 std::vector<std::string> ArgNames;
566 for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) {
567 Args.push_back(LHSs->getArg(i));
568 ArgNames.push_back(LHSs->getArgName(i));
570 for (unsigned i = 0, e = RHSs->getNumArgs(); i != e; ++i) {
571 Args.push_back(RHSs->getArg(i));
572 ArgNames.push_back(RHSs->getArgName(i));
574 return new DagInit(LHSs->getOperator(), "", Args, ArgNames);
579 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
580 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
582 return new StringInit(LHSs->getValue() + RHSs->getValue());
586 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
587 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
589 std::string Name(LHSs->getValue() + RHSs->getValue());
591 // From TGParser::ParseIDValue
593 if (const RecordVal *RV = CurRec->getValue(Name)) {
594 if (RV->getType() != getType()) {
595 throw "type mismatch in nameconcat";
597 return new VarInit(Name, RV->getType());
600 std::string TemplateArgName = CurRec->getName()+":"+Name;
601 if (CurRec->isTemplateArg(TemplateArgName)) {
602 const RecordVal *RV = CurRec->getValue(TemplateArgName);
603 assert(RV && "Template arg doesn't exist??");
605 if (RV->getType() != getType()) {
606 throw "type mismatch in nameconcat";
609 return new VarInit(TemplateArgName, RV->getType());
614 std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
615 if (CurMultiClass->Rec.isTemplateArg(MCName)) {
616 const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
617 assert(RV && "Template arg doesn't exist??");
619 if (RV->getType() != getType()) {
620 throw "type mismatch in nameconcat";
623 return new VarInit(MCName, RV->getType());
627 if (Record *D = Records.getDef(Name))
628 return new DefInit(D);
630 cerr << "Variable not defined: '" + Name + "'\n";
631 assert(0 && "Variable not found");
639 IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
640 IntInit *RHSi = dynamic_cast<IntInit*>(RHS);
642 int64_t LHSv = LHSi->getValue(), RHSv = RHSi->getValue();
644 switch (getOpcode()) {
645 default: assert(0 && "Bad opcode!");
646 case SHL: Result = LHSv << RHSv; break;
647 case SRA: Result = LHSv >> RHSv; break;
648 case SRL: Result = (uint64_t)LHSv >> (uint64_t)RHSv; break;
650 return new IntInit(Result);
658 Init *BinOpInit::resolveReferences(Record &R, const RecordVal *RV) {
659 Init *lhs = LHS->resolveReferences(R, RV);
660 Init *rhs = RHS->resolveReferences(R, RV);
662 if (LHS != lhs || RHS != rhs)
663 return (new BinOpInit(getOpcode(), lhs, rhs, getType()))->Fold(&R, 0);
667 std::string BinOpInit::getAsString() const {
670 case CONCAT: Result = "!con"; break;
671 case SHL: Result = "!shl"; break;
672 case SRA: Result = "!sra"; break;
673 case SRL: Result = "!srl"; break;
674 case STRCONCAT: Result = "!strconcat"; break;
676 Result = "!nameconcat<" + getType()->getAsString() + ">"; break;
678 return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")";
681 static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
682 Record *CurRec, MultiClass *CurMultiClass);
684 static Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg,
685 RecTy *Type, Record *CurRec,
686 MultiClass *CurMultiClass) {
687 std::vector<Init *> NewOperands;
689 TypedInit *TArg = dynamic_cast<TypedInit*>(Arg);
691 // If this is a dag, recurse
692 if (TArg && TArg->getType()->getAsString() == "dag") {
693 Init *Result = ForeachHelper(LHS, Arg, RHSo, Type,
694 CurRec, CurMultiClass);
703 for (int i = 0; i < RHSo->getNumOperands(); ++i) {
704 OpInit *RHSoo = dynamic_cast<OpInit*>(RHSo->getOperand(i));
707 Init *Result = EvaluateOperation(RHSoo, LHS, Arg,
708 Type, CurRec, CurMultiClass);
710 NewOperands.push_back(Result);
713 NewOperands.push_back(Arg);
716 else if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
717 NewOperands.push_back(Arg);
720 NewOperands.push_back(RHSo->getOperand(i));
724 // Now run the operator and use its result as the new leaf
725 OpInit *NewOp = RHSo->clone(NewOperands);
726 Init *NewVal = NewOp->Fold(CurRec, CurMultiClass);
727 if (NewVal != NewOp) {
734 static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
735 Record *CurRec, MultiClass *CurMultiClass) {
736 DagInit *MHSd = dynamic_cast<DagInit*>(MHS);
737 ListInit *MHSl = dynamic_cast<ListInit*>(MHS);
739 DagRecTy *DagType = dynamic_cast<DagRecTy*>(Type);
740 ListRecTy *ListType = dynamic_cast<ListRecTy*>(Type);
742 OpInit *RHSo = dynamic_cast<OpInit*>(RHS);
745 cerr << "!foreach requires an operator\n";
746 assert(0 && "No operator for !foreach");
749 TypedInit *LHSt = dynamic_cast<TypedInit*>(LHS);
752 cerr << "!foreach requires typed variable\n";
753 assert(0 && "No typed variable for !foreach");
756 if (MHSd && DagType || MHSl && ListType) {
758 Init *Val = MHSd->getOperator();
759 Init *Result = EvaluateOperation(RHSo, LHS, Val,
760 Type, CurRec, CurMultiClass);
765 std::vector<std::pair<Init *, std::string> > args;
766 for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) {
769 Arg = MHSd->getArg(i);
770 ArgName = MHSd->getArgName(i);
773 Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type,
774 CurRec, CurMultiClass);
779 // TODO: Process arg names
780 args.push_back(std::make_pair(Arg, ArgName));
783 return new DagInit(Val, "", args);
786 std::vector<Init *> NewOperands;
787 std::vector<Init *> NewList(MHSl->begin(), MHSl->end());
789 for (ListInit::iterator li = NewList.begin(),
790 liend = NewList.end();
795 for(int i = 0; i < RHSo->getNumOperands(); ++i) {
796 // First, replace the foreach variable with the list item
797 if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
798 NewOperands.push_back(Item);
801 NewOperands.push_back(RHSo->getOperand(i));
805 // Now run the operator and use its result as the new list item
806 OpInit *NewOp = RHSo->clone(NewOperands);
807 Init *NewItem = NewOp->Fold(CurRec, CurMultiClass);
808 if (NewItem != NewOp) {
813 return new ListInit(NewList);
819 Init *TernOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
820 switch (getOpcode()) {
821 default: assert(0 && "Unknown binop");
823 DefInit *LHSd = dynamic_cast<DefInit*>(LHS);
824 VarInit *LHSv = dynamic_cast<VarInit*>(LHS);
825 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
827 DefInit *MHSd = dynamic_cast<DefInit*>(MHS);
828 VarInit *MHSv = dynamic_cast<VarInit*>(MHS);
829 StringInit *MHSs = dynamic_cast<StringInit*>(MHS);
831 DefInit *RHSd = dynamic_cast<DefInit*>(RHS);
832 VarInit *RHSv = dynamic_cast<VarInit*>(RHS);
833 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
835 if ((LHSd && MHSd && RHSd)
836 || (LHSv && MHSv && RHSv)
837 || (LHSs && MHSs && RHSs)) {
839 Record *Val = RHSd->getDef();
840 if (LHSd->getAsString() == RHSd->getAsString()) {
841 Val = MHSd->getDef();
843 return new DefInit(Val);
846 std::string Val = RHSv->getName();
847 if (LHSv->getAsString() == RHSv->getAsString()) {
848 Val = MHSv->getName();
850 return new VarInit(Val, getType());
853 std::string Val = RHSs->getValue();
855 std::string::size_type found;
857 found = Val.find(LHSs->getValue());
858 if (found != std::string::npos) {
859 Val.replace(found, LHSs->getValue().size(), MHSs->getValue());
861 } while (found != std::string::npos);
863 return new StringInit(Val);
870 Init *Result = ForeachHelper(LHS, MHS, RHS, getType(),
871 CurRec, CurMultiClass);
882 Init *TernOpInit::resolveReferences(Record &R, const RecordVal *RV) {
883 Init *lhs = LHS->resolveReferences(R, RV);
884 Init *mhs = MHS->resolveReferences(R, RV);
885 Init *rhs = RHS->resolveReferences(R, RV);
887 if (LHS != lhs || MHS != mhs || RHS != rhs)
888 return (new TernOpInit(getOpcode(), lhs, mhs, rhs, getType()))->Fold(&R, 0);
892 std::string TernOpInit::getAsString() const {
895 case SUBST: Result = "!subst"; break;
896 case FOREACH: Result = "!foreach"; break;
898 return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", "
899 + RHS->getAsString() + ")";
902 Init *TypedInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
903 BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
904 if (T == 0) return 0; // Cannot subscript a non-bits variable...
905 unsigned NumBits = T->getNumBits();
907 BitsInit *BI = new BitsInit(Bits.size());
908 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
909 if (Bits[i] >= NumBits) {
913 BI->setBit(i, new VarBitInit(this, Bits[i]));
918 Init *TypedInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
919 ListRecTy *T = dynamic_cast<ListRecTy*>(getType());
920 if (T == 0) return 0; // Cannot subscript a non-list variable...
922 if (Elements.size() == 1)
923 return new VarListElementInit(this, Elements[0]);
925 std::vector<Init*> ListInits;
926 ListInits.reserve(Elements.size());
927 for (unsigned i = 0, e = Elements.size(); i != e; ++i)
928 ListInits.push_back(new VarListElementInit(this, Elements[i]));
929 return new ListInit(ListInits);
933 Init *VarInit::resolveBitReference(Record &R, const RecordVal *IRV,
935 if (R.isTemplateArg(getName())) return 0;
936 if (IRV && IRV->getName() != getName()) return 0;
938 RecordVal *RV = R.getValue(getName());
939 assert(RV && "Reference to a non-existant variable?");
940 assert(dynamic_cast<BitsInit*>(RV->getValue()));
941 BitsInit *BI = (BitsInit*)RV->getValue();
943 assert(Bit < BI->getNumBits() && "Bit reference out of range!");
944 Init *B = BI->getBit(Bit);
946 if (!dynamic_cast<UnsetInit*>(B)) // If the bit is not set...
947 return B; // Replace the VarBitInit with it.
951 Init *VarInit::resolveListElementReference(Record &R, const RecordVal *IRV,
953 if (R.isTemplateArg(getName())) return 0;
954 if (IRV && IRV->getName() != getName()) return 0;
956 RecordVal *RV = R.getValue(getName());
957 assert(RV && "Reference to a non-existant variable?");
958 ListInit *LI = dynamic_cast<ListInit*>(RV->getValue());
960 VarInit *VI = dynamic_cast<VarInit*>(RV->getValue());
961 assert(VI && "Invalid list element!");
962 return new VarListElementInit(VI, Elt);
965 if (Elt >= LI->getSize())
966 return 0; // Out of range reference.
967 Init *E = LI->getElement(Elt);
968 if (!dynamic_cast<UnsetInit*>(E)) // If the element is set
969 return E; // Replace the VarListElementInit with it.
974 RecTy *VarInit::getFieldType(const std::string &FieldName) const {
975 if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
976 if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
977 return RV->getType();
981 Init *VarInit::getFieldInit(Record &R, const std::string &FieldName) const {
982 if (dynamic_cast<RecordRecTy*>(getType()))
983 if (const RecordVal *RV = R.getValue(VarName)) {
984 Init *TheInit = RV->getValue();
985 assert(TheInit != this && "Infinite loop detected!");
986 if (Init *I = TheInit->getFieldInit(R, FieldName))
994 /// resolveReferences - This method is used by classes that refer to other
995 /// variables which may not be defined at the time they expression is formed.
996 /// If a value is set for the variable later, this method will be called on
997 /// users of the value to allow the value to propagate out.
999 Init *VarInit::resolveReferences(Record &R, const RecordVal *RV) {
1000 if (RecordVal *Val = R.getValue(VarName))
1001 if (RV == Val || (RV == 0 && !dynamic_cast<UnsetInit*>(Val->getValue())))
1002 return Val->getValue();
1006 std::string VarBitInit::getAsString() const {
1007 return TI->getAsString() + "{" + utostr(Bit) + "}";
1010 Init *VarBitInit::resolveReferences(Record &R, const RecordVal *RV) {
1011 if (Init *I = getVariable()->resolveBitReference(R, RV, getBitNum()))
1016 std::string VarListElementInit::getAsString() const {
1017 return TI->getAsString() + "[" + utostr(Element) + "]";
1020 Init *VarListElementInit::resolveReferences(Record &R, const RecordVal *RV) {
1021 if (Init *I = getVariable()->resolveListElementReference(R, RV,
1027 Init *VarListElementInit::resolveBitReference(Record &R, const RecordVal *RV,
1029 // FIXME: This should be implemented, to support references like:
1030 // bit B = AA[0]{1};
1034 Init *VarListElementInit::
1035 resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) {
1036 // FIXME: This should be implemented, to support references like:
1037 // int B = AA[0][1];
1041 RecTy *DefInit::getFieldType(const std::string &FieldName) const {
1042 if (const RecordVal *RV = Def->getValue(FieldName))
1043 return RV->getType();
1047 Init *DefInit::getFieldInit(Record &R, const std::string &FieldName) const {
1048 return Def->getValue(FieldName)->getValue();
1052 std::string DefInit::getAsString() const {
1053 return Def->getName();
1056 Init *FieldInit::resolveBitReference(Record &R, const RecordVal *RV,
1058 if (Init *BitsVal = Rec->getFieldInit(R, FieldName))
1059 if (BitsInit *BI = dynamic_cast<BitsInit*>(BitsVal)) {
1060 assert(Bit < BI->getNumBits() && "Bit reference out of range!");
1061 Init *B = BI->getBit(Bit);
1063 if (dynamic_cast<BitInit*>(B)) // If the bit is set...
1064 return B; // Replace the VarBitInit with it.
1069 Init *FieldInit::resolveListElementReference(Record &R, const RecordVal *RV,
1071 if (Init *ListVal = Rec->getFieldInit(R, FieldName))
1072 if (ListInit *LI = dynamic_cast<ListInit*>(ListVal)) {
1073 if (Elt >= LI->getSize()) return 0;
1074 Init *E = LI->getElement(Elt);
1076 if (!dynamic_cast<UnsetInit*>(E)) // If the bit is set...
1077 return E; // Replace the VarListElementInit with it.
1082 Init *FieldInit::resolveReferences(Record &R, const RecordVal *RV) {
1083 Init *NewRec = RV ? Rec->resolveReferences(R, RV) : Rec;
1085 Init *BitsVal = NewRec->getFieldInit(R, FieldName);
1087 Init *BVR = BitsVal->resolveReferences(R, RV);
1088 return BVR->isComplete() ? BVR : this;
1091 if (NewRec != Rec) {
1092 return new FieldInit(NewRec, FieldName);
1097 Init *DagInit::resolveReferences(Record &R, const RecordVal *RV) {
1098 std::vector<Init*> NewArgs;
1099 for (unsigned i = 0, e = Args.size(); i != e; ++i)
1100 NewArgs.push_back(Args[i]->resolveReferences(R, RV));
1102 Init *Op = Val->resolveReferences(R, RV);
1104 if (Args != NewArgs || Op != Val)
1105 return new DagInit(Op, "", NewArgs, ArgNames);
1111 std::string DagInit::getAsString() const {
1112 std::string Result = "(" + Val->getAsString();
1113 if (!ValName.empty())
1114 Result += ":" + ValName;
1116 Result += " " + Args[0]->getAsString();
1117 if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0];
1118 for (unsigned i = 1, e = Args.size(); i != e; ++i) {
1119 Result += ", " + Args[i]->getAsString();
1120 if (!ArgNames[i].empty()) Result += ":$" + ArgNames[i];
1123 return Result + ")";
1127 //===----------------------------------------------------------------------===//
1128 // Other implementations
1129 //===----------------------------------------------------------------------===//
1131 RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
1132 : Name(N), Ty(T), Prefix(P) {
1133 Value = Ty->convertValue(new UnsetInit());
1134 assert(Value && "Cannot create unset value for current type!");
1137 void RecordVal::dump() const { cerr << *this; }
1139 void RecordVal::print(std::ostream &OS, bool PrintSem) const {
1140 if (getPrefix()) OS << "field ";
1141 OS << *getType() << " " << getName();
1144 OS << " = " << *getValue();
1146 if (PrintSem) OS << ";\n";
1149 void Record::setName(const std::string &Name) {
1150 if (Records.getDef(getName()) == this) {
1151 Records.removeDef(getName());
1153 Records.addDef(this);
1155 Records.removeClass(getName());
1157 Records.addClass(this);
1161 /// resolveReferencesTo - If anything in this record refers to RV, replace the
1162 /// reference to RV with the RHS of RV. If RV is null, we resolve all possible
1164 void Record::resolveReferencesTo(const RecordVal *RV) {
1165 for (unsigned i = 0, e = Values.size(); i != e; ++i) {
1166 if (Init *V = Values[i].getValue())
1167 Values[i].setValue(V->resolveReferences(*this, RV));
1172 void Record::dump() const { cerr << *this; }
1174 std::ostream &llvm::operator<<(std::ostream &OS, const Record &R) {
1177 const std::vector<std::string> &TArgs = R.getTemplateArgs();
1178 if (!TArgs.empty()) {
1180 for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
1182 const RecordVal *RV = R.getValue(TArgs[i]);
1183 assert(RV && "Template argument record not found??");
1184 RV->print(OS, false);
1190 const std::vector<Record*> &SC = R.getSuperClasses();
1193 for (unsigned i = 0, e = SC.size(); i != e; ++i)
1194 OS << " " << SC[i]->getName();
1198 const std::vector<RecordVal> &Vals = R.getValues();
1199 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
1200 if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
1202 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
1203 if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
1209 /// getValueInit - Return the initializer for a value with the specified name,
1210 /// or throw an exception if the field does not exist.
1212 Init *Record::getValueInit(const std::string &FieldName) const {
1213 const RecordVal *R = getValue(FieldName);
1214 if (R == 0 || R->getValue() == 0)
1215 throw "Record `" + getName() + "' does not have a field named `" +
1217 return R->getValue();
1221 /// getValueAsString - This method looks up the specified field and returns its
1222 /// value as a string, throwing an exception if the field does not exist or if
1223 /// the value is not a string.
1225 std::string Record::getValueAsString(const std::string &FieldName) const {
1226 const RecordVal *R = getValue(FieldName);
1227 if (R == 0 || R->getValue() == 0)
1228 throw "Record `" + getName() + "' does not have a field named `" +
1231 if (const StringInit *SI = dynamic_cast<const StringInit*>(R->getValue()))
1232 return SI->getValue();
1233 throw "Record `" + getName() + "', field `" + FieldName +
1234 "' does not have a string initializer!";
1237 /// getValueAsBitsInit - This method looks up the specified field and returns
1238 /// its value as a BitsInit, throwing an exception if the field does not exist
1239 /// or if the value is not the right type.
1241 BitsInit *Record::getValueAsBitsInit(const std::string &FieldName) const {
1242 const RecordVal *R = getValue(FieldName);
1243 if (R == 0 || R->getValue() == 0)
1244 throw "Record `" + getName() + "' does not have a field named `" +
1247 if (BitsInit *BI = dynamic_cast<BitsInit*>(R->getValue()))
1249 throw "Record `" + getName() + "', field `" + FieldName +
1250 "' does not have a BitsInit initializer!";
1253 /// getValueAsListInit - This method looks up the specified field and returns
1254 /// its value as a ListInit, throwing an exception if the field does not exist
1255 /// or if the value is not the right type.
1257 ListInit *Record::getValueAsListInit(const std::string &FieldName) const {
1258 const RecordVal *R = getValue(FieldName);
1259 if (R == 0 || R->getValue() == 0)
1260 throw "Record `" + getName() + "' does not have a field named `" +
1263 if (ListInit *LI = dynamic_cast<ListInit*>(R->getValue()))
1265 throw "Record `" + getName() + "', field `" + FieldName +
1266 "' does not have a list initializer!";
1269 /// getValueAsListOfDefs - This method looks up the specified field and returns
1270 /// its value as a vector of records, throwing an exception if the field does
1271 /// not exist or if the value is not the right type.
1273 std::vector<Record*>
1274 Record::getValueAsListOfDefs(const std::string &FieldName) const {
1275 ListInit *List = getValueAsListInit(FieldName);
1276 std::vector<Record*> Defs;
1277 for (unsigned i = 0; i < List->getSize(); i++) {
1278 if (DefInit *DI = dynamic_cast<DefInit*>(List->getElement(i))) {
1279 Defs.push_back(DI->getDef());
1281 throw "Record `" + getName() + "', field `" + FieldName +
1282 "' list is not entirely DefInit!";
1288 /// getValueAsInt - This method looks up the specified field and returns its
1289 /// value as an int64_t, throwing an exception if the field does not exist or if
1290 /// the value is not the right type.
1292 int64_t Record::getValueAsInt(const std::string &FieldName) const {
1293 const RecordVal *R = getValue(FieldName);
1294 if (R == 0 || R->getValue() == 0)
1295 throw "Record `" + getName() + "' does not have a field named `" +
1298 if (IntInit *II = dynamic_cast<IntInit*>(R->getValue()))
1299 return II->getValue();
1300 throw "Record `" + getName() + "', field `" + FieldName +
1301 "' does not have an int initializer!";
1304 /// getValueAsListOfInts - This method looks up the specified field and returns
1305 /// its value as a vector of integers, throwing an exception if the field does
1306 /// not exist or if the value is not the right type.
1308 std::vector<int64_t>
1309 Record::getValueAsListOfInts(const std::string &FieldName) const {
1310 ListInit *List = getValueAsListInit(FieldName);
1311 std::vector<int64_t> Ints;
1312 for (unsigned i = 0; i < List->getSize(); i++) {
1313 if (IntInit *II = dynamic_cast<IntInit*>(List->getElement(i))) {
1314 Ints.push_back(II->getValue());
1316 throw "Record `" + getName() + "', field `" + FieldName +
1317 "' does not have a list of ints initializer!";
1323 /// getValueAsDef - This method looks up the specified field and returns its
1324 /// value as a Record, throwing an exception if the field does not exist or if
1325 /// the value is not the right type.
1327 Record *Record::getValueAsDef(const std::string &FieldName) const {
1328 const RecordVal *R = getValue(FieldName);
1329 if (R == 0 || R->getValue() == 0)
1330 throw "Record `" + getName() + "' does not have a field named `" +
1333 if (DefInit *DI = dynamic_cast<DefInit*>(R->getValue()))
1334 return DI->getDef();
1335 throw "Record `" + getName() + "', field `" + FieldName +
1336 "' does not have a def initializer!";
1339 /// getValueAsBit - This method looks up the specified field and returns its
1340 /// value as a bit, throwing an exception if the field does not exist or if
1341 /// the value is not the right type.
1343 bool Record::getValueAsBit(const std::string &FieldName) const {
1344 const RecordVal *R = getValue(FieldName);
1345 if (R == 0 || R->getValue() == 0)
1346 throw "Record `" + getName() + "' does not have a field named `" +
1349 if (BitInit *BI = dynamic_cast<BitInit*>(R->getValue()))
1350 return BI->getValue();
1351 throw "Record `" + getName() + "', field `" + FieldName +
1352 "' does not have a bit initializer!";
1355 /// getValueAsDag - This method looks up the specified field and returns its
1356 /// value as an Dag, throwing an exception if the field does not exist or if
1357 /// the value is not the right type.
1359 DagInit *Record::getValueAsDag(const std::string &FieldName) const {
1360 const RecordVal *R = getValue(FieldName);
1361 if (R == 0 || R->getValue() == 0)
1362 throw "Record `" + getName() + "' does not have a field named `" +
1365 if (DagInit *DI = dynamic_cast<DagInit*>(R->getValue()))
1367 throw "Record `" + getName() + "', field `" + FieldName +
1368 "' does not have a dag initializer!";
1371 std::string Record::getValueAsCode(const std::string &FieldName) const {
1372 const RecordVal *R = getValue(FieldName);
1373 if (R == 0 || R->getValue() == 0)
1374 throw "Record `" + getName() + "' does not have a field named `" +
1377 if (const CodeInit *CI = dynamic_cast<const CodeInit*>(R->getValue()))
1378 return CI->getValue();
1379 throw "Record `" + getName() + "', field `" + FieldName +
1380 "' does not have a code initializer!";
1384 void MultiClass::dump() const {
1385 cerr << "Record:\n";
1389 for (RecordVector::const_iterator r = DefPrototypes.begin(),
1390 rend = DefPrototypes.end();
1398 void RecordKeeper::dump() const { cerr << *this; }
1400 std::ostream &llvm::operator<<(std::ostream &OS, const RecordKeeper &RK) {
1401 OS << "------------- Classes -----------------\n";
1402 const std::map<std::string, Record*> &Classes = RK.getClasses();
1403 for (std::map<std::string, Record*>::const_iterator I = Classes.begin(),
1404 E = Classes.end(); I != E; ++I)
1405 OS << "class " << *I->second;
1407 OS << "------------- Defs -----------------\n";
1408 const std::map<std::string, Record*> &Defs = RK.getDefs();
1409 for (std::map<std::string, Record*>::const_iterator I = Defs.begin(),
1410 E = Defs.end(); I != E; ++I)
1411 OS << "def " << *I->second;
1416 /// getAllDerivedDefinitions - This method returns all concrete definitions
1417 /// that derive from the specified class name. If a class with the specified
1418 /// name does not exist, an error is printed and true is returned.
1419 std::vector<Record*>
1420 RecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const {
1421 Record *Class = Records.getClass(ClassName);
1423 throw "ERROR: Couldn't find the `" + ClassName + "' class!\n";
1425 std::vector<Record*> Defs;
1426 for (std::map<std::string, Record*>::const_iterator I = getDefs().begin(),
1427 E = getDefs().end(); I != E; ++I)
1428 if (I->second->isSubClassOf(Class))
1429 Defs.push_back(I->second);