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"
19 #include <sys/types.h>
24 //===----------------------------------------------------------------------===//
25 // Type implementations
26 //===----------------------------------------------------------------------===//
28 void RecTy::dump() const { print(*cerr.stream()); }
30 Init *BitRecTy::convertValue(BitsInit *BI) {
31 if (BI->getNumBits() != 1) return 0; // Only accept if just one bit!
35 bool BitRecTy::baseClassOf(const BitsRecTy *RHS) const {
36 return RHS->getNumBits() == 1;
39 Init *BitRecTy::convertValue(IntInit *II) {
40 int64_t Val = II->getValue();
41 if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit!
43 return new BitInit(Val != 0);
46 Init *BitRecTy::convertValue(TypedInit *VI) {
47 if (dynamic_cast<BitRecTy*>(VI->getType()))
48 return VI; // Accept variable if it is already of bit type!
52 std::string BitsRecTy::getAsString() const {
53 return "bits<" + utostr(Size) + ">";
56 Init *BitsRecTy::convertValue(UnsetInit *UI) {
57 BitsInit *Ret = new BitsInit(Size);
59 for (unsigned i = 0; i != Size; ++i)
60 Ret->setBit(i, new UnsetInit());
64 Init *BitsRecTy::convertValue(BitInit *UI) {
65 if (Size != 1) return 0; // Can only convert single bit...
66 BitsInit *Ret = new BitsInit(1);
71 // convertValue from Int initializer to bits type: Split the integer up into the
72 // appropriate bits...
74 Init *BitsRecTy::convertValue(IntInit *II) {
75 int64_t Value = II->getValue();
76 // Make sure this bitfield is large enough to hold the integer value...
78 if (Value & ~((1LL << Size)-1))
81 if ((Value >> Size) != -1 || ((Value & (1LL << (Size-1))) == 0))
85 BitsInit *Ret = new BitsInit(Size);
86 for (unsigned i = 0; i != Size; ++i)
87 Ret->setBit(i, new BitInit(Value & (1LL << i)));
92 Init *BitsRecTy::convertValue(BitsInit *BI) {
93 // If the number of bits is right, return it. Otherwise we need to expand or
95 if (BI->getNumBits() == Size) return BI;
99 Init *BitsRecTy::convertValue(TypedInit *VI) {
100 if (BitsRecTy *BRT = dynamic_cast<BitsRecTy*>(VI->getType()))
101 if (BRT->Size == Size) {
102 BitsInit *Ret = new BitsInit(Size);
103 for (unsigned i = 0; i != Size; ++i)
104 Ret->setBit(i, new VarBitInit(VI, i));
107 if (Size == 1 && dynamic_cast<BitRecTy*>(VI->getType())) {
108 BitsInit *Ret = new BitsInit(1);
116 Init *IntRecTy::convertValue(BitInit *BI) {
117 return new IntInit(BI->getValue());
120 Init *IntRecTy::convertValue(BitsInit *BI) {
122 for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
123 if (BitInit *Bit = dynamic_cast<BitInit*>(BI->getBit(i))) {
124 Result |= Bit->getValue() << i;
128 return new IntInit(Result);
131 Init *IntRecTy::convertValue(TypedInit *TI) {
132 if (TI->getType()->typeIsConvertibleTo(this))
133 return TI; // Accept variable if already of the right type!
137 Init *StringRecTy::convertValue(UnOpInit *BO) {
138 if (BO->getOpcode() == UnOpInit::CAST) {
139 Init *L = BO->getOperand()->convertInitializerTo(this);
140 if (L == 0) return 0;
141 if (L != BO->getOperand())
142 return new UnOpInit(UnOpInit::CAST, L, new StringRecTy);
146 return convertValue((TypedInit*)BO);
149 Init *StringRecTy::convertValue(BinOpInit *BO) {
150 if (BO->getOpcode() == BinOpInit::STRCONCAT) {
151 Init *L = BO->getLHS()->convertInitializerTo(this);
152 Init *R = BO->getRHS()->convertInitializerTo(this);
153 if (L == 0 || R == 0) return 0;
154 if (L != BO->getLHS() || R != BO->getRHS())
155 return new BinOpInit(BinOpInit::STRCONCAT, L, R, new StringRecTy);
158 if (BO->getOpcode() == BinOpInit::NAMECONCAT) {
159 if (BO->getType()->getAsString() == getAsString()) {
160 Init *L = BO->getLHS()->convertInitializerTo(this);
161 Init *R = BO->getRHS()->convertInitializerTo(this);
162 if (L == 0 || R == 0) return 0;
163 if (L != BO->getLHS() || R != BO->getRHS())
164 return new BinOpInit(BinOpInit::NAMECONCAT, L, R, new StringRecTy);
169 return convertValue((TypedInit*)BO);
173 Init *StringRecTy::convertValue(TypedInit *TI) {
174 if (dynamic_cast<StringRecTy*>(TI->getType()))
175 return TI; // Accept variable if already of the right type!
179 std::string ListRecTy::getAsString() const {
180 return "list<" + Ty->getAsString() + ">";
183 Init *ListRecTy::convertValue(ListInit *LI) {
184 std::vector<Init*> Elements;
186 // Verify that all of the elements of the list are subclasses of the
187 // appropriate class!
188 for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
189 if (Init *CI = LI->getElement(i)->convertInitializerTo(Ty))
190 Elements.push_back(CI);
194 return new ListInit(Elements);
197 Init *ListRecTy::convertValue(TypedInit *TI) {
198 // Ensure that TI is compatible with our class.
199 if (ListRecTy *LRT = dynamic_cast<ListRecTy*>(TI->getType()))
200 if (LRT->getElementType()->typeIsConvertibleTo(getElementType()))
205 Init *CodeRecTy::convertValue(TypedInit *TI) {
206 if (TI->getType()->typeIsConvertibleTo(this))
211 Init *DagRecTy::convertValue(TypedInit *TI) {
212 if (TI->getType()->typeIsConvertibleTo(this))
217 Init *DagRecTy::convertValue(UnOpInit *BO) {
218 if (BO->getOpcode() == UnOpInit::CAST) {
219 Init *L = BO->getOperand()->convertInitializerTo(this);
220 if (L == 0) return 0;
221 if (L != BO->getOperand())
222 return new UnOpInit(UnOpInit::CAST, L, new DagRecTy);
228 Init *DagRecTy::convertValue(BinOpInit *BO) {
229 if (BO->getOpcode() == BinOpInit::CONCAT) {
230 Init *L = BO->getLHS()->convertInitializerTo(this);
231 Init *R = BO->getRHS()->convertInitializerTo(this);
232 if (L == 0 || R == 0) return 0;
233 if (L != BO->getLHS() || R != BO->getRHS())
234 return new BinOpInit(BinOpInit::CONCAT, L, R, new DagRecTy);
237 if (BO->getOpcode() == BinOpInit::NAMECONCAT) {
238 if (BO->getType()->getAsString() == getAsString()) {
239 Init *L = BO->getLHS()->convertInitializerTo(this);
240 Init *R = BO->getRHS()->convertInitializerTo(this);
241 if (L == 0 || R == 0) return 0;
242 if (L != BO->getLHS() || R != BO->getRHS())
243 return new BinOpInit(BinOpInit::CONCAT, L, R, new DagRecTy);
250 std::string RecordRecTy::getAsString() const {
251 return Rec->getName();
254 Init *RecordRecTy::convertValue(DefInit *DI) {
255 // Ensure that DI is a subclass of Rec.
256 if (!DI->getDef()->isSubClassOf(Rec))
261 Init *RecordRecTy::convertValue(TypedInit *TI) {
262 // Ensure that TI is compatible with Rec.
263 if (RecordRecTy *RRT = dynamic_cast<RecordRecTy*>(TI->getType()))
264 if (RRT->getRecord()->isSubClassOf(getRecord()) ||
265 RRT->getRecord() == getRecord())
270 bool RecordRecTy::baseClassOf(const RecordRecTy *RHS) const {
271 return Rec == RHS->getRecord() || RHS->getRecord()->isSubClassOf(Rec);
275 //===----------------------------------------------------------------------===//
276 // Initializer implementations
277 //===----------------------------------------------------------------------===//
279 void Init::dump() const { return print(*cerr.stream()); }
281 Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
282 BitsInit *BI = new BitsInit(Bits.size());
283 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
284 if (Bits[i] >= getNumBits()) {
288 BI->setBit(i, getBit(Bits[i]));
293 std::string BitsInit::getAsString() const {
294 //if (!printInHex(OS)) return;
295 //if (!printAsVariable(OS)) return;
296 //if (!printAsUnset(OS)) return;
298 std::string Result = "{ ";
299 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
300 if (i) Result += ", ";
301 if (Init *Bit = getBit(e-i-1))
302 Result += Bit->getAsString();
306 return Result + " }";
309 bool BitsInit::printInHex(std::ostream &OS) const {
310 // First, attempt to convert the value into an integer value...
312 for (unsigned i = 0, e = getNumBits(); i != e; ++i)
313 if (BitInit *Bit = dynamic_cast<BitInit*>(getBit(i))) {
314 Result |= Bit->getValue() << i;
319 OS << "0x" << std::hex << Result << std::dec;
323 bool BitsInit::printAsVariable(std::ostream &OS) const {
324 // Get the variable that we may be set equal to...
325 assert(getNumBits() != 0);
326 VarBitInit *FirstBit = dynamic_cast<VarBitInit*>(getBit(0));
327 if (FirstBit == 0) return true;
328 TypedInit *Var = FirstBit->getVariable();
330 // Check to make sure the types are compatible.
331 BitsRecTy *Ty = dynamic_cast<BitsRecTy*>(FirstBit->getVariable()->getType());
332 if (Ty == 0) return true;
333 if (Ty->getNumBits() != getNumBits()) return true; // Incompatible types!
335 // Check to make sure all bits are referring to the right bits in the variable
336 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
337 VarBitInit *Bit = dynamic_cast<VarBitInit*>(getBit(i));
338 if (Bit == 0 || Bit->getVariable() != Var || Bit->getBitNum() != i)
346 bool BitsInit::printAsUnset(std::ostream &OS) const {
347 for (unsigned i = 0, e = getNumBits(); i != e; ++i)
348 if (!dynamic_cast<UnsetInit*>(getBit(i)))
354 // resolveReferences - If there are any field references that refer to fields
355 // that have been filled in, we can propagate the values now.
357 Init *BitsInit::resolveReferences(Record &R, const RecordVal *RV) {
358 bool Changed = false;
359 BitsInit *New = new BitsInit(getNumBits());
361 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
363 Init *CurBit = getBit(i);
367 CurBit = CurBit->resolveReferences(R, RV);
368 Changed |= B != CurBit;
369 } while (B != CurBit);
370 New->setBit(i, CurBit);
379 std::string IntInit::getAsString() const {
380 return itostr(Value);
383 Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
384 BitsInit *BI = new BitsInit(Bits.size());
386 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
391 BI->setBit(i, new BitInit(Value & (INT64_C(1) << Bits[i])));
396 Init *ListInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
397 std::vector<Init*> Vals;
398 for (unsigned i = 0, e = Elements.size(); i != e; ++i) {
399 if (Elements[i] >= getSize())
401 Vals.push_back(getElement(Elements[i]));
403 return new ListInit(Vals);
406 Record *ListInit::getElementAsRecord(unsigned i) const {
407 assert(i < Values.size() && "List element index out of range!");
408 DefInit *DI = dynamic_cast<DefInit*>(Values[i]);
409 if (DI == 0) throw "Expected record in list!";
413 Init *ListInit::resolveReferences(Record &R, const RecordVal *RV) {
414 std::vector<Init*> Resolved;
415 Resolved.reserve(getSize());
416 bool Changed = false;
418 for (unsigned i = 0, e = getSize(); i != e; ++i) {
420 Init *CurElt = getElement(i);
424 CurElt = CurElt->resolveReferences(R, RV);
425 Changed |= E != CurElt;
426 } while (E != CurElt);
427 Resolved.push_back(E);
431 return new ListInit(Resolved);
435 std::string ListInit::getAsString() const {
436 std::string Result = "[";
437 for (unsigned i = 0, e = Values.size(); i != e; ++i) {
438 if (i) Result += ", ";
439 Result += Values[i]->getAsString();
444 Init *OpInit::resolveBitReference(Record &R, const RecordVal *IRV,
446 Init *Folded = Fold(&R, 0);
448 if (Folded != this) {
449 TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
451 return Typed->resolveBitReference(R, IRV, Bit);
458 Init *OpInit::resolveListElementReference(Record &R, const RecordVal *IRV,
460 Init *Folded = Fold(&R, 0);
462 if (Folded != this) {
463 TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
465 return Typed->resolveListElementReference(R, IRV, Elt);
472 Init *UnOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
473 switch (getOpcode()) {
474 default: assert(0 && "Unknown unop");
476 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
478 std::string Name = LHSs->getValue();
480 // From TGParser::ParseIDValue
482 if (const RecordVal *RV = CurRec->getValue(Name)) {
483 if (RV->getType() != getType()) {
484 throw "type mismatch in nameconcat";
486 return new VarInit(Name, RV->getType());
489 std::string TemplateArgName = CurRec->getName()+":"+Name;
490 if (CurRec->isTemplateArg(TemplateArgName)) {
491 const RecordVal *RV = CurRec->getValue(TemplateArgName);
492 assert(RV && "Template arg doesn't exist??");
494 if (RV->getType() != getType()) {
495 throw "type mismatch in nameconcat";
498 return new VarInit(TemplateArgName, RV->getType());
503 std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
504 if (CurMultiClass->Rec.isTemplateArg(MCName)) {
505 const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
506 assert(RV && "Template arg doesn't exist??");
508 if (RV->getType() != getType()) {
509 throw "type mismatch in nameconcat";
512 return new VarInit(MCName, RV->getType());
516 if (Record *D = Records.getDef(Name))
517 return new DefInit(D);
519 cerr << "Variable not defined: '" + Name + "'\n";
520 assert(0 && "Variable not found");
526 ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
528 if (LHSl->getSize() == 0) {
529 assert(0 && "Empty list in car");
532 return LHSl->getElement(0);
537 ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
539 if (LHSl->getSize() == 0) {
540 assert(0 && "Empty list in cdr");
543 ListInit *Result = new ListInit(LHSl->begin()+1, LHSl->end());
549 ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
551 if (LHSl->getSize() == 0) {
552 return new IntInit(1);
555 return new IntInit(0);
564 Init *UnOpInit::resolveReferences(Record &R, const RecordVal *RV) {
565 Init *lhs = LHS->resolveReferences(R, RV);
568 return (new UnOpInit(getOpcode(), lhs, getType()))->Fold(&R, 0);
572 std::string UnOpInit::getAsString() const {
575 case CAST: Result = "!cast<" + getType()->getAsString() + ">"; break;
576 case CAR: Result = "!car"; break;
577 case CDR: Result = "!cdr"; break;
578 case LNULL: Result = "!null"; break;
580 return Result + "(" + LHS->getAsString() + ")";
583 Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
584 switch (getOpcode()) {
585 default: assert(0 && "Unknown binop");
587 DagInit *LHSs = dynamic_cast<DagInit*>(LHS);
588 DagInit *RHSs = dynamic_cast<DagInit*>(RHS);
590 DefInit *LOp = dynamic_cast<DefInit*>(LHSs->getOperator());
591 DefInit *ROp = dynamic_cast<DefInit*>(RHSs->getOperator());
592 if (LOp->getDef() != ROp->getDef()) {
594 LOp->getDef()->getName() == "outs" ||
595 LOp->getDef()->getName() != "ins" ||
596 LOp->getDef()->getName() != "defs";
598 ROp->getDef()->getName() == "outs" ||
599 ROp->getDef()->getName() != "ins" ||
600 ROp->getDef()->getName() != "defs";
601 if (!LIsOps || !RIsOps)
602 throw "Concated Dag operators do not match!";
604 std::vector<Init*> Args;
605 std::vector<std::string> ArgNames;
606 for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) {
607 Args.push_back(LHSs->getArg(i));
608 ArgNames.push_back(LHSs->getArgName(i));
610 for (unsigned i = 0, e = RHSs->getNumArgs(); i != e; ++i) {
611 Args.push_back(RHSs->getArg(i));
612 ArgNames.push_back(RHSs->getArgName(i));
614 return new DagInit(LHSs->getOperator(), "", Args, ArgNames);
619 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
620 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
622 return new StringInit(LHSs->getValue() + RHSs->getValue());
626 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
627 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
629 std::string Name(LHSs->getValue() + RHSs->getValue());
631 // From TGParser::ParseIDValue
633 if (const RecordVal *RV = CurRec->getValue(Name)) {
634 if (RV->getType() != getType()) {
635 throw "type mismatch in nameconcat";
637 return new VarInit(Name, RV->getType());
640 std::string TemplateArgName = CurRec->getName()+":"+Name;
641 if (CurRec->isTemplateArg(TemplateArgName)) {
642 const RecordVal *RV = CurRec->getValue(TemplateArgName);
643 assert(RV && "Template arg doesn't exist??");
645 if (RV->getType() != getType()) {
646 throw "type mismatch in nameconcat";
649 return new VarInit(TemplateArgName, RV->getType());
654 std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
655 if (CurMultiClass->Rec.isTemplateArg(MCName)) {
656 const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
657 assert(RV && "Template arg doesn't exist??");
659 if (RV->getType() != getType()) {
660 throw "type mismatch in nameconcat";
663 return new VarInit(MCName, RV->getType());
667 if (Record *D = Records.getDef(Name))
668 return new DefInit(D);
670 cerr << "Variable not defined: '" + Name + "'\n";
671 assert(0 && "Variable not found");
677 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
678 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
681 int err = regcomp (&compiled, LHSs->getValue().c_str(), REG_EXTENDED);
683 size_t length = regerror (err, &compiled, NULL, 0);
684 char *buffer = new char[length];
685 (void) regerror (err, &compiled, buffer, length);
686 std::string errmsg = buffer;
691 int result = regexec(&compiled, RHSs->getValue().c_str(), 0, NULL, 0);
692 if (result == REG_ESPACE) {
693 size_t length = regerror (err, &compiled, NULL, 0);
694 char *buffer = new char[length];
695 (void) regerror (err, &compiled, buffer, length);
696 std::string errmsg = buffer;
702 return new IntInit(result == 0);
709 IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
710 IntInit *RHSi = dynamic_cast<IntInit*>(RHS);
712 int64_t LHSv = LHSi->getValue(), RHSv = RHSi->getValue();
714 switch (getOpcode()) {
715 default: assert(0 && "Bad opcode!");
716 case SHL: Result = LHSv << RHSv; break;
717 case SRA: Result = LHSv >> RHSv; break;
718 case SRL: Result = (uint64_t)LHSv >> (uint64_t)RHSv; break;
720 return new IntInit(Result);
728 Init *BinOpInit::resolveReferences(Record &R, const RecordVal *RV) {
729 Init *lhs = LHS->resolveReferences(R, RV);
730 Init *rhs = RHS->resolveReferences(R, RV);
732 if (LHS != lhs || RHS != rhs)
733 return (new BinOpInit(getOpcode(), lhs, rhs, getType()))->Fold(&R, 0);
737 std::string BinOpInit::getAsString() const {
740 case CONCAT: Result = "!con"; break;
741 case SHL: Result = "!shl"; break;
742 case SRA: Result = "!sra"; break;
743 case SRL: Result = "!srl"; break;
744 case STRCONCAT: Result = "!strconcat"; break;
745 case REGMATCH: Result = "!regmatch"; break;
747 Result = "!nameconcat<" + getType()->getAsString() + ">"; break;
749 return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")";
752 static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
753 Record *CurRec, MultiClass *CurMultiClass);
755 static Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg,
756 RecTy *Type, Record *CurRec,
757 MultiClass *CurMultiClass) {
758 std::vector<Init *> NewOperands;
760 TypedInit *TArg = dynamic_cast<TypedInit*>(Arg);
762 // If this is a dag, recurse
763 if (TArg && TArg->getType()->getAsString() == "dag") {
764 Init *Result = ForeachHelper(LHS, Arg, RHSo, Type,
765 CurRec, CurMultiClass);
774 for (int i = 0; i < RHSo->getNumOperands(); ++i) {
775 OpInit *RHSoo = dynamic_cast<OpInit*>(RHSo->getOperand(i));
778 Init *Result = EvaluateOperation(RHSoo, LHS, Arg,
779 Type, CurRec, CurMultiClass);
781 NewOperands.push_back(Result);
784 NewOperands.push_back(Arg);
787 else if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
788 NewOperands.push_back(Arg);
791 NewOperands.push_back(RHSo->getOperand(i));
795 // Now run the operator and use its result as the new leaf
796 OpInit *NewOp = RHSo->clone(NewOperands);
797 Init *NewVal = NewOp->Fold(CurRec, CurMultiClass);
798 if (NewVal != NewOp) {
805 static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
806 Record *CurRec, MultiClass *CurMultiClass) {
807 DagInit *MHSd = dynamic_cast<DagInit*>(MHS);
808 ListInit *MHSl = dynamic_cast<ListInit*>(MHS);
810 DagRecTy *DagType = dynamic_cast<DagRecTy*>(Type);
811 ListRecTy *ListType = dynamic_cast<ListRecTy*>(Type);
813 OpInit *RHSo = dynamic_cast<OpInit*>(RHS);
816 cerr << "!foreach requires an operator\n";
817 assert(0 && "No operator for !foreach");
820 TypedInit *LHSt = dynamic_cast<TypedInit*>(LHS);
823 cerr << "!foreach requires typed variable\n";
824 assert(0 && "No typed variable for !foreach");
827 if ((MHSd && DagType) || (MHSl && ListType)) {
829 Init *Val = MHSd->getOperator();
830 Init *Result = EvaluateOperation(RHSo, LHS, Val,
831 Type, CurRec, CurMultiClass);
836 std::vector<std::pair<Init *, std::string> > args;
837 for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) {
840 Arg = MHSd->getArg(i);
841 ArgName = MHSd->getArgName(i);
844 Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type,
845 CurRec, CurMultiClass);
850 // TODO: Process arg names
851 args.push_back(std::make_pair(Arg, ArgName));
854 return new DagInit(Val, "", args);
857 std::vector<Init *> NewOperands;
858 std::vector<Init *> NewList(MHSl->begin(), MHSl->end());
860 for (ListInit::iterator li = NewList.begin(),
861 liend = NewList.end();
866 for(int i = 0; i < RHSo->getNumOperands(); ++i) {
867 // First, replace the foreach variable with the list item
868 if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
869 NewOperands.push_back(Item);
872 NewOperands.push_back(RHSo->getOperand(i));
876 // Now run the operator and use its result as the new list item
877 OpInit *NewOp = RHSo->clone(NewOperands);
878 Init *NewItem = NewOp->Fold(CurRec, CurMultiClass);
879 if (NewItem != NewOp) {
884 return new ListInit(NewList);
890 Init *TernOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
891 switch (getOpcode()) {
892 default: assert(0 && "Unknown binop");
894 DefInit *LHSd = dynamic_cast<DefInit*>(LHS);
895 VarInit *LHSv = dynamic_cast<VarInit*>(LHS);
896 StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
898 DefInit *MHSd = dynamic_cast<DefInit*>(MHS);
899 VarInit *MHSv = dynamic_cast<VarInit*>(MHS);
900 StringInit *MHSs = dynamic_cast<StringInit*>(MHS);
902 DefInit *RHSd = dynamic_cast<DefInit*>(RHS);
903 VarInit *RHSv = dynamic_cast<VarInit*>(RHS);
904 StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
906 if ((LHSd && MHSd && RHSd)
907 || (LHSv && MHSv && RHSv)
908 || (LHSs && MHSs && RHSs)) {
910 Record *Val = RHSd->getDef();
911 if (LHSd->getAsString() == RHSd->getAsString()) {
912 Val = MHSd->getDef();
914 return new DefInit(Val);
917 std::string Val = RHSv->getName();
918 if (LHSv->getAsString() == RHSv->getAsString()) {
919 Val = MHSv->getName();
921 return new VarInit(Val, getType());
924 std::string Val = RHSs->getValue();
926 std::string::size_type found;
928 found = Val.find(LHSs->getValue());
929 if (found != std::string::npos) {
930 Val.replace(found, LHSs->getValue().size(), MHSs->getValue());
932 } while (found != std::string::npos);
934 return new StringInit(Val);
941 Init *Result = ForeachHelper(LHS, MHS, RHS, getType(),
942 CurRec, CurMultiClass);
950 IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
952 if (LHSi->getValue()) {
966 Init *TernOpInit::resolveReferences(Record &R, const RecordVal *RV) {
967 Init *lhs = LHS->resolveReferences(R, RV);
969 if (Opc == IF && lhs != LHS) {
970 IntInit *Value = dynamic_cast<IntInit*>(lhs);
973 if (Value->getValue()) {
974 Init *mhs = MHS->resolveReferences(R, RV);
975 return (new TernOpInit(getOpcode(), lhs, mhs, RHS, getType()))->Fold(&R, 0);
978 Init *rhs = RHS->resolveReferences(R, RV);
979 return (new TernOpInit(getOpcode(), lhs, MHS, rhs, getType()))->Fold(&R, 0);
984 Init *mhs = MHS->resolveReferences(R, RV);
985 Init *rhs = RHS->resolveReferences(R, RV);
987 if (LHS != lhs || MHS != mhs || RHS != rhs)
988 return (new TernOpInit(getOpcode(), lhs, mhs, rhs, getType()))->Fold(&R, 0);
992 std::string TernOpInit::getAsString() const {
995 case SUBST: Result = "!subst"; break;
996 case FOREACH: Result = "!foreach"; break;
997 case IF: Result = "!if"; break;
999 return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", "
1000 + RHS->getAsString() + ")";
1003 Init *TypedInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
1004 BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
1005 if (T == 0) return 0; // Cannot subscript a non-bits variable...
1006 unsigned NumBits = T->getNumBits();
1008 BitsInit *BI = new BitsInit(Bits.size());
1009 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
1010 if (Bits[i] >= NumBits) {
1014 BI->setBit(i, new VarBitInit(this, Bits[i]));
1019 Init *TypedInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
1020 ListRecTy *T = dynamic_cast<ListRecTy*>(getType());
1021 if (T == 0) return 0; // Cannot subscript a non-list variable...
1023 if (Elements.size() == 1)
1024 return new VarListElementInit(this, Elements[0]);
1026 std::vector<Init*> ListInits;
1027 ListInits.reserve(Elements.size());
1028 for (unsigned i = 0, e = Elements.size(); i != e; ++i)
1029 ListInits.push_back(new VarListElementInit(this, Elements[i]));
1030 return new ListInit(ListInits);
1034 Init *VarInit::resolveBitReference(Record &R, const RecordVal *IRV,
1036 if (R.isTemplateArg(getName())) return 0;
1037 if (IRV && IRV->getName() != getName()) return 0;
1039 RecordVal *RV = R.getValue(getName());
1040 assert(RV && "Reference to a non-existant variable?");
1041 assert(dynamic_cast<BitsInit*>(RV->getValue()));
1042 BitsInit *BI = (BitsInit*)RV->getValue();
1044 assert(Bit < BI->getNumBits() && "Bit reference out of range!");
1045 Init *B = BI->getBit(Bit);
1047 if (!dynamic_cast<UnsetInit*>(B)) // If the bit is not set...
1048 return B; // Replace the VarBitInit with it.
1052 Init *VarInit::resolveListElementReference(Record &R, const RecordVal *IRV,
1054 if (R.isTemplateArg(getName())) return 0;
1055 if (IRV && IRV->getName() != getName()) return 0;
1057 RecordVal *RV = R.getValue(getName());
1058 assert(RV && "Reference to a non-existant variable?");
1059 ListInit *LI = dynamic_cast<ListInit*>(RV->getValue());
1061 VarInit *VI = dynamic_cast<VarInit*>(RV->getValue());
1062 assert(VI && "Invalid list element!");
1063 return new VarListElementInit(VI, Elt);
1066 if (Elt >= LI->getSize())
1067 return 0; // Out of range reference.
1068 Init *E = LI->getElement(Elt);
1069 if (!dynamic_cast<UnsetInit*>(E)) // If the element is set
1070 return E; // Replace the VarListElementInit with it.
1075 RecTy *VarInit::getFieldType(const std::string &FieldName) const {
1076 if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
1077 if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
1078 return RV->getType();
1082 Init *VarInit::getFieldInit(Record &R, const std::string &FieldName) const {
1083 if (dynamic_cast<RecordRecTy*>(getType()))
1084 if (const RecordVal *RV = R.getValue(VarName)) {
1085 Init *TheInit = RV->getValue();
1086 assert(TheInit != this && "Infinite loop detected!");
1087 if (Init *I = TheInit->getFieldInit(R, FieldName))
1095 /// resolveReferences - This method is used by classes that refer to other
1096 /// variables which may not be defined at the time they expression is formed.
1097 /// If a value is set for the variable later, this method will be called on
1098 /// users of the value to allow the value to propagate out.
1100 Init *VarInit::resolveReferences(Record &R, const RecordVal *RV) {
1101 if (RecordVal *Val = R.getValue(VarName))
1102 if (RV == Val || (RV == 0 && !dynamic_cast<UnsetInit*>(Val->getValue())))
1103 return Val->getValue();
1107 std::string VarBitInit::getAsString() const {
1108 return TI->getAsString() + "{" + utostr(Bit) + "}";
1111 Init *VarBitInit::resolveReferences(Record &R, const RecordVal *RV) {
1112 if (Init *I = getVariable()->resolveBitReference(R, RV, getBitNum()))
1117 std::string VarListElementInit::getAsString() const {
1118 return TI->getAsString() + "[" + utostr(Element) + "]";
1121 Init *VarListElementInit::resolveReferences(Record &R, const RecordVal *RV) {
1122 if (Init *I = getVariable()->resolveListElementReference(R, RV,
1128 Init *VarListElementInit::resolveBitReference(Record &R, const RecordVal *RV,
1130 // FIXME: This should be implemented, to support references like:
1131 // bit B = AA[0]{1};
1135 Init *VarListElementInit::
1136 resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) {
1137 // FIXME: This should be implemented, to support references like:
1138 // int B = AA[0][1];
1142 RecTy *DefInit::getFieldType(const std::string &FieldName) const {
1143 if (const RecordVal *RV = Def->getValue(FieldName))
1144 return RV->getType();
1148 Init *DefInit::getFieldInit(Record &R, const std::string &FieldName) const {
1149 return Def->getValue(FieldName)->getValue();
1153 std::string DefInit::getAsString() const {
1154 return Def->getName();
1157 Init *FieldInit::resolveBitReference(Record &R, const RecordVal *RV,
1159 if (Init *BitsVal = Rec->getFieldInit(R, FieldName))
1160 if (BitsInit *BI = dynamic_cast<BitsInit*>(BitsVal)) {
1161 assert(Bit < BI->getNumBits() && "Bit reference out of range!");
1162 Init *B = BI->getBit(Bit);
1164 if (dynamic_cast<BitInit*>(B)) // If the bit is set...
1165 return B; // Replace the VarBitInit with it.
1170 Init *FieldInit::resolveListElementReference(Record &R, const RecordVal *RV,
1172 if (Init *ListVal = Rec->getFieldInit(R, FieldName))
1173 if (ListInit *LI = dynamic_cast<ListInit*>(ListVal)) {
1174 if (Elt >= LI->getSize()) return 0;
1175 Init *E = LI->getElement(Elt);
1177 if (!dynamic_cast<UnsetInit*>(E)) // If the bit is set...
1178 return E; // Replace the VarListElementInit with it.
1183 Init *FieldInit::resolveReferences(Record &R, const RecordVal *RV) {
1184 Init *NewRec = RV ? Rec->resolveReferences(R, RV) : Rec;
1186 Init *BitsVal = NewRec->getFieldInit(R, FieldName);
1188 Init *BVR = BitsVal->resolveReferences(R, RV);
1189 return BVR->isComplete() ? BVR : this;
1192 if (NewRec != Rec) {
1193 return new FieldInit(NewRec, FieldName);
1198 Init *DagInit::resolveReferences(Record &R, const RecordVal *RV) {
1199 std::vector<Init*> NewArgs;
1200 for (unsigned i = 0, e = Args.size(); i != e; ++i)
1201 NewArgs.push_back(Args[i]->resolveReferences(R, RV));
1203 Init *Op = Val->resolveReferences(R, RV);
1205 if (Args != NewArgs || Op != Val)
1206 return new DagInit(Op, "", NewArgs, ArgNames);
1212 std::string DagInit::getAsString() const {
1213 std::string Result = "(" + Val->getAsString();
1214 if (!ValName.empty())
1215 Result += ":" + ValName;
1217 Result += " " + Args[0]->getAsString();
1218 if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0];
1219 for (unsigned i = 1, e = Args.size(); i != e; ++i) {
1220 Result += ", " + Args[i]->getAsString();
1221 if (!ArgNames[i].empty()) Result += ":$" + ArgNames[i];
1224 return Result + ")";
1228 //===----------------------------------------------------------------------===//
1229 // Other implementations
1230 //===----------------------------------------------------------------------===//
1232 RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
1233 : Name(N), Ty(T), Prefix(P) {
1234 Value = Ty->convertValue(new UnsetInit());
1235 assert(Value && "Cannot create unset value for current type!");
1238 void RecordVal::dump() const { cerr << *this; }
1240 void RecordVal::print(std::ostream &OS, bool PrintSem) const {
1241 if (getPrefix()) OS << "field ";
1242 OS << *getType() << " " << getName();
1245 OS << " = " << *getValue();
1247 if (PrintSem) OS << ";\n";
1250 void Record::setName(const std::string &Name) {
1251 if (Records.getDef(getName()) == this) {
1252 Records.removeDef(getName());
1254 Records.addDef(this);
1256 Records.removeClass(getName());
1258 Records.addClass(this);
1262 /// resolveReferencesTo - If anything in this record refers to RV, replace the
1263 /// reference to RV with the RHS of RV. If RV is null, we resolve all possible
1265 void Record::resolveReferencesTo(const RecordVal *RV) {
1266 for (unsigned i = 0, e = Values.size(); i != e; ++i) {
1267 if (Init *V = Values[i].getValue())
1268 Values[i].setValue(V->resolveReferences(*this, RV));
1273 void Record::dump() const { cerr << *this; }
1275 std::ostream &llvm::operator<<(std::ostream &OS, const Record &R) {
1278 const std::vector<std::string> &TArgs = R.getTemplateArgs();
1279 if (!TArgs.empty()) {
1281 for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
1283 const RecordVal *RV = R.getValue(TArgs[i]);
1284 assert(RV && "Template argument record not found??");
1285 RV->print(OS, false);
1291 const std::vector<Record*> &SC = R.getSuperClasses();
1294 for (unsigned i = 0, e = SC.size(); i != e; ++i)
1295 OS << " " << SC[i]->getName();
1299 const std::vector<RecordVal> &Vals = R.getValues();
1300 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
1301 if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
1303 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
1304 if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
1310 /// getValueInit - Return the initializer for a value with the specified name,
1311 /// or throw an exception if the field does not exist.
1313 Init *Record::getValueInit(const std::string &FieldName) const {
1314 const RecordVal *R = getValue(FieldName);
1315 if (R == 0 || R->getValue() == 0)
1316 throw "Record `" + getName() + "' does not have a field named `" +
1318 return R->getValue();
1322 /// getValueAsString - This method looks up the specified field and returns its
1323 /// value as a string, throwing an exception if the field does not exist or if
1324 /// the value is not a string.
1326 std::string Record::getValueAsString(const std::string &FieldName) const {
1327 const RecordVal *R = getValue(FieldName);
1328 if (R == 0 || R->getValue() == 0)
1329 throw "Record `" + getName() + "' does not have a field named `" +
1332 if (const StringInit *SI = dynamic_cast<const StringInit*>(R->getValue()))
1333 return SI->getValue();
1334 throw "Record `" + getName() + "', field `" + FieldName +
1335 "' does not have a string initializer!";
1338 /// getValueAsBitsInit - This method looks up the specified field and returns
1339 /// its value as a BitsInit, throwing an exception if the field does not exist
1340 /// or if the value is not the right type.
1342 BitsInit *Record::getValueAsBitsInit(const std::string &FieldName) const {
1343 const RecordVal *R = getValue(FieldName);
1344 if (R == 0 || R->getValue() == 0)
1345 throw "Record `" + getName() + "' does not have a field named `" +
1348 if (BitsInit *BI = dynamic_cast<BitsInit*>(R->getValue()))
1350 throw "Record `" + getName() + "', field `" + FieldName +
1351 "' does not have a BitsInit initializer!";
1354 /// getValueAsListInit - This method looks up the specified field and returns
1355 /// its value as a ListInit, throwing an exception if the field does not exist
1356 /// or if the value is not the right type.
1358 ListInit *Record::getValueAsListInit(const std::string &FieldName) const {
1359 const RecordVal *R = getValue(FieldName);
1360 if (R == 0 || R->getValue() == 0)
1361 throw "Record `" + getName() + "' does not have a field named `" +
1364 if (ListInit *LI = dynamic_cast<ListInit*>(R->getValue()))
1366 throw "Record `" + getName() + "', field `" + FieldName +
1367 "' does not have a list initializer!";
1370 /// getValueAsListOfDefs - This method looks up the specified field and returns
1371 /// its value as a vector of records, throwing an exception if the field does
1372 /// not exist or if the value is not the right type.
1374 std::vector<Record*>
1375 Record::getValueAsListOfDefs(const std::string &FieldName) const {
1376 ListInit *List = getValueAsListInit(FieldName);
1377 std::vector<Record*> Defs;
1378 for (unsigned i = 0; i < List->getSize(); i++) {
1379 if (DefInit *DI = dynamic_cast<DefInit*>(List->getElement(i))) {
1380 Defs.push_back(DI->getDef());
1382 throw "Record `" + getName() + "', field `" + FieldName +
1383 "' list is not entirely DefInit!";
1389 /// getValueAsInt - This method looks up the specified field and returns its
1390 /// value as an int64_t, throwing an exception if the field does not exist or if
1391 /// the value is not the right type.
1393 int64_t Record::getValueAsInt(const std::string &FieldName) const {
1394 const RecordVal *R = getValue(FieldName);
1395 if (R == 0 || R->getValue() == 0)
1396 throw "Record `" + getName() + "' does not have a field named `" +
1399 if (IntInit *II = dynamic_cast<IntInit*>(R->getValue()))
1400 return II->getValue();
1401 throw "Record `" + getName() + "', field `" + FieldName +
1402 "' does not have an int initializer!";
1405 /// getValueAsListOfInts - This method looks up the specified field and returns
1406 /// its value as a vector of integers, throwing an exception if the field does
1407 /// not exist or if the value is not the right type.
1409 std::vector<int64_t>
1410 Record::getValueAsListOfInts(const std::string &FieldName) const {
1411 ListInit *List = getValueAsListInit(FieldName);
1412 std::vector<int64_t> Ints;
1413 for (unsigned i = 0; i < List->getSize(); i++) {
1414 if (IntInit *II = dynamic_cast<IntInit*>(List->getElement(i))) {
1415 Ints.push_back(II->getValue());
1417 throw "Record `" + getName() + "', field `" + FieldName +
1418 "' does not have a list of ints initializer!";
1424 /// getValueAsDef - This method looks up the specified field and returns its
1425 /// value as a Record, throwing an exception if the field does not exist or if
1426 /// the value is not the right type.
1428 Record *Record::getValueAsDef(const std::string &FieldName) const {
1429 const RecordVal *R = getValue(FieldName);
1430 if (R == 0 || R->getValue() == 0)
1431 throw "Record `" + getName() + "' does not have a field named `" +
1434 if (DefInit *DI = dynamic_cast<DefInit*>(R->getValue()))
1435 return DI->getDef();
1436 throw "Record `" + getName() + "', field `" + FieldName +
1437 "' does not have a def initializer!";
1440 /// getValueAsBit - This method looks up the specified field and returns its
1441 /// value as a bit, throwing an exception if the field does not exist or if
1442 /// the value is not the right type.
1444 bool Record::getValueAsBit(const std::string &FieldName) const {
1445 const RecordVal *R = getValue(FieldName);
1446 if (R == 0 || R->getValue() == 0)
1447 throw "Record `" + getName() + "' does not have a field named `" +
1450 if (BitInit *BI = dynamic_cast<BitInit*>(R->getValue()))
1451 return BI->getValue();
1452 throw "Record `" + getName() + "', field `" + FieldName +
1453 "' does not have a bit initializer!";
1456 /// getValueAsDag - This method looks up the specified field and returns its
1457 /// value as an Dag, throwing an exception if the field does not exist or if
1458 /// the value is not the right type.
1460 DagInit *Record::getValueAsDag(const std::string &FieldName) const {
1461 const RecordVal *R = getValue(FieldName);
1462 if (R == 0 || R->getValue() == 0)
1463 throw "Record `" + getName() + "' does not have a field named `" +
1466 if (DagInit *DI = dynamic_cast<DagInit*>(R->getValue()))
1468 throw "Record `" + getName() + "', field `" + FieldName +
1469 "' does not have a dag initializer!";
1472 std::string Record::getValueAsCode(const std::string &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 `" +
1478 if (const CodeInit *CI = dynamic_cast<const CodeInit*>(R->getValue()))
1479 return CI->getValue();
1480 throw "Record `" + getName() + "', field `" + FieldName +
1481 "' does not have a code initializer!";
1485 void MultiClass::dump() const {
1486 cerr << "Record:\n";
1490 for (RecordVector::const_iterator r = DefPrototypes.begin(),
1491 rend = DefPrototypes.end();
1499 void RecordKeeper::dump() const { cerr << *this; }
1501 std::ostream &llvm::operator<<(std::ostream &OS, const RecordKeeper &RK) {
1502 OS << "------------- Classes -----------------\n";
1503 const std::map<std::string, Record*> &Classes = RK.getClasses();
1504 for (std::map<std::string, Record*>::const_iterator I = Classes.begin(),
1505 E = Classes.end(); I != E; ++I)
1506 OS << "class " << *I->second;
1508 OS << "------------- Defs -----------------\n";
1509 const std::map<std::string, Record*> &Defs = RK.getDefs();
1510 for (std::map<std::string, Record*>::const_iterator I = Defs.begin(),
1511 E = Defs.end(); I != E; ++I)
1512 OS << "def " << *I->second;
1517 /// getAllDerivedDefinitions - This method returns all concrete definitions
1518 /// that derive from the specified class name. If a class with the specified
1519 /// name does not exist, an error is printed and true is returned.
1520 std::vector<Record*>
1521 RecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const {
1522 Record *Class = Records.getClass(ClassName);
1524 throw "ERROR: Couldn't find the `" + ClassName + "' class!\n";
1526 std::vector<Record*> Defs;
1527 for (std::map<std::string, Record*>::const_iterator I = getDefs().begin(),
1528 E = getDefs().end(); I != E; ++I)
1529 if (I->second->isSubClassOf(Class))
1530 Defs.push_back(I->second);