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 //===----------------------------------------------------------------------===//
14 #include "llvm/TableGen/Record.h"
15 #include "llvm/ADT/DenseMap.h"
16 #include "llvm/ADT/FoldingSet.h"
17 #include "llvm/ADT/Hashing.h"
18 #include "llvm/ADT/STLExtras.h"
19 #include "llvm/ADT/SmallVector.h"
20 #include "llvm/ADT/StringExtras.h"
21 #include "llvm/ADT/StringMap.h"
22 #include "llvm/Support/DataTypes.h"
23 #include "llvm/Support/ErrorHandling.h"
24 #include "llvm/Support/Format.h"
25 #include "llvm/TableGen/Error.h"
29 //===----------------------------------------------------------------------===//
30 // std::string wrapper for DenseMap purposes
31 //===----------------------------------------------------------------------===//
35 /// TableGenStringKey - This is a wrapper for std::string suitable for
36 /// using as a key to a DenseMap. Because there isn't a particularly
37 /// good way to indicate tombstone or empty keys for strings, we want
38 /// to wrap std::string to indicate that this is a "special" string
39 /// not expected to take on certain values (those of the tombstone and
40 /// empty keys). This makes things a little safer as it clarifies
41 /// that DenseMap is really not appropriate for general strings.
43 class TableGenStringKey {
45 TableGenStringKey(const std::string &str) : data(str) {}
46 TableGenStringKey(const char *str) : data(str) {}
48 const std::string &str() const { return data; }
50 friend hash_code hash_value(const TableGenStringKey &Value) {
51 using llvm::hash_value;
52 return hash_value(Value.str());
58 /// Specialize DenseMapInfo for TableGenStringKey.
59 template<> struct DenseMapInfo<TableGenStringKey> {
60 static inline TableGenStringKey getEmptyKey() {
61 TableGenStringKey Empty("<<<EMPTY KEY>>>");
64 static inline TableGenStringKey getTombstoneKey() {
65 TableGenStringKey Tombstone("<<<TOMBSTONE KEY>>>");
68 static unsigned getHashValue(const TableGenStringKey& Val) {
69 using llvm::hash_value;
70 return hash_value(Val);
72 static bool isEqual(const TableGenStringKey& LHS,
73 const TableGenStringKey& RHS) {
74 return LHS.str() == RHS.str();
80 //===----------------------------------------------------------------------===//
81 // Type implementations
82 //===----------------------------------------------------------------------===//
84 BitRecTy BitRecTy::Shared;
85 IntRecTy IntRecTy::Shared;
86 StringRecTy StringRecTy::Shared;
87 DagRecTy DagRecTy::Shared;
89 void RecTy::dump() const { print(errs()); }
91 ListRecTy *RecTy::getListTy() {
93 ListTy.reset(new ListRecTy(this));
97 bool RecTy::typeIsConvertibleTo(const RecTy *RHS) const {
98 assert(RHS && "NULL pointer");
99 return Kind == RHS->getRecTyKind();
102 bool BitRecTy::typeIsConvertibleTo(const RecTy *RHS) const{
103 if(RecTy::typeIsConvertibleTo(RHS) || RHS->getRecTyKind() == IntRecTyKind)
105 if(const BitsRecTy *BitsTy = dyn_cast<BitsRecTy>(RHS))
106 return BitsTy->getNumBits() == 1;
110 BitsRecTy *BitsRecTy::get(unsigned Sz) {
111 static std::vector<std::unique_ptr<BitsRecTy>> Shared;
112 if (Sz >= Shared.size())
113 Shared.resize(Sz + 1);
114 std::unique_ptr<BitsRecTy> &Ty = Shared[Sz];
116 Ty.reset(new BitsRecTy(Sz));
120 std::string BitsRecTy::getAsString() const {
121 return "bits<" + utostr(Size) + ">";
124 bool BitsRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
125 if (RecTy::typeIsConvertibleTo(RHS)) //argument and the sender are same type
126 return cast<BitsRecTy>(RHS)->Size == Size;
127 RecTyKind kind = RHS->getRecTyKind();
128 return (kind == BitRecTyKind && Size == 1) || (kind == IntRecTyKind);
131 bool IntRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
132 RecTyKind kind = RHS->getRecTyKind();
133 return kind==BitRecTyKind || kind==BitsRecTyKind || kind==IntRecTyKind;
136 std::string StringRecTy::getAsString() const {
140 std::string ListRecTy::getAsString() const {
141 return "list<" + Ty->getAsString() + ">";
144 bool ListRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
145 if (const auto *ListTy = dyn_cast<ListRecTy>(RHS))
146 return Ty->typeIsConvertibleTo(ListTy->getElementType());
150 std::string DagRecTy::getAsString() const {
154 RecordRecTy *RecordRecTy::get(Record *R) {
155 return dyn_cast<RecordRecTy>(R->getDefInit()->getType());
158 std::string RecordRecTy::getAsString() const {
159 return Rec->getName();
162 bool RecordRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
163 const RecordRecTy *RTy = dyn_cast<RecordRecTy>(RHS);
167 if (RTy->getRecord() == Rec || Rec->isSubClassOf(RTy->getRecord()))
170 for (Record *SC : RTy->getRecord()->getSuperClasses())
171 if (Rec->isSubClassOf(SC))
177 /// resolveTypes - Find a common type that T1 and T2 convert to.
178 /// Return null if no such type exists.
180 RecTy *llvm::resolveTypes(RecTy *T1, RecTy *T2) {
181 if (T1->typeIsConvertibleTo(T2))
183 if (T2->typeIsConvertibleTo(T1))
186 // If one is a Record type, check superclasses
187 if (RecordRecTy *RecTy1 = dyn_cast<RecordRecTy>(T1)) {
188 // See if T2 inherits from a type T1 also inherits from
189 for (Record *SuperRec1 : RecTy1->getRecord()->getSuperClasses()) {
190 RecordRecTy *SuperRecTy1 = RecordRecTy::get(SuperRec1);
191 RecTy *NewType1 = resolveTypes(SuperRecTy1, T2);
196 if (RecordRecTy *RecTy2 = dyn_cast<RecordRecTy>(T2)) {
197 // See if T1 inherits from a type T2 also inherits from
198 for (Record *SuperRec2 : RecTy2->getRecord()->getSuperClasses()) {
199 RecordRecTy *SuperRecTy2 = RecordRecTy::get(SuperRec2);
200 RecTy *NewType2 = resolveTypes(T1, SuperRecTy2);
209 //===----------------------------------------------------------------------===//
210 // Initializer implementations
211 //===----------------------------------------------------------------------===//
213 void Init::anchor() { }
214 void Init::dump() const { return print(errs()); }
216 UnsetInit *UnsetInit::get() {
217 static UnsetInit TheInit;
221 Init *UnsetInit::convertInitializerTo(RecTy *Ty) const {
222 if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
223 SmallVector<Init *, 16> NewBits(BRT->getNumBits());
225 for (unsigned i = 0; i != BRT->getNumBits(); ++i)
226 NewBits[i] = UnsetInit::get();
228 return BitsInit::get(NewBits);
231 // All other types can just be returned.
232 return const_cast<UnsetInit *>(this);
235 BitInit *BitInit::get(bool V) {
236 static BitInit True(true);
237 static BitInit False(false);
239 return V ? &True : &False;
242 Init *BitInit::convertInitializerTo(RecTy *Ty) const {
243 if (isa<BitRecTy>(Ty))
244 return const_cast<BitInit *>(this);
246 if (isa<IntRecTy>(Ty))
247 return IntInit::get(getValue());
249 if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
250 // Can only convert single bit.
251 if (BRT->getNumBits() == 1)
252 return BitsInit::get(const_cast<BitInit *>(this));
259 ProfileBitsInit(FoldingSetNodeID &ID, ArrayRef<Init *> Range) {
260 ID.AddInteger(Range.size());
262 for (Init *I : Range)
266 BitsInit *BitsInit::get(ArrayRef<Init *> Range) {
267 static FoldingSet<BitsInit> ThePool;
268 static std::vector<std::unique_ptr<BitsInit>> TheActualPool;
271 ProfileBitsInit(ID, Range);
274 if (BitsInit *I = ThePool.FindNodeOrInsertPos(ID, IP))
277 BitsInit *I = new BitsInit(Range);
278 ThePool.InsertNode(I, IP);
279 TheActualPool.push_back(std::unique_ptr<BitsInit>(I));
283 void BitsInit::Profile(FoldingSetNodeID &ID) const {
284 ProfileBitsInit(ID, Bits);
287 Init *BitsInit::convertInitializerTo(RecTy *Ty) const {
288 if (isa<BitRecTy>(Ty)) {
289 if (getNumBits() != 1) return nullptr; // Only accept if just one bit!
293 if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
294 // If the number of bits is right, return it. Otherwise we need to expand
296 if (getNumBits() != BRT->getNumBits()) return nullptr;
297 return const_cast<BitsInit *>(this);
300 if (isa<IntRecTy>(Ty)) {
302 for (unsigned i = 0, e = getNumBits(); i != e; ++i)
303 if (auto *Bit = dyn_cast<BitInit>(getBit(i)))
304 Result |= static_cast<int64_t>(Bit->getValue()) << i;
307 return IntInit::get(Result);
314 BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) const {
315 SmallVector<Init *, 16> NewBits(Bits.size());
317 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
318 if (Bits[i] >= getNumBits())
320 NewBits[i] = getBit(Bits[i]);
322 return BitsInit::get(NewBits);
325 std::string BitsInit::getAsString() const {
326 std::string Result = "{ ";
327 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
328 if (i) Result += ", ";
329 if (Init *Bit = getBit(e-i-1))
330 Result += Bit->getAsString();
334 return Result + " }";
337 // Fix bit initializer to preserve the behavior that bit reference from a unset
338 // bits initializer will resolve into VarBitInit to keep the field name and bit
339 // number used in targets with fixed insn length.
340 static Init *fixBitInit(const RecordVal *RV, Init *Before, Init *After) {
341 if (RV || !isa<UnsetInit>(After))
346 // resolveReferences - If there are any field references that refer to fields
347 // that have been filled in, we can propagate the values now.
349 Init *BitsInit::resolveReferences(Record &R, const RecordVal *RV) const {
350 bool Changed = false;
351 SmallVector<Init *, 16> NewBits(getNumBits());
353 Init *CachedInit = nullptr;
354 Init *CachedBitVar = nullptr;
355 bool CachedBitVarChanged = false;
357 for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
358 Init *CurBit = Bits[i];
359 Init *CurBitVar = CurBit->getBitVar();
363 if (CurBitVar == CachedBitVar) {
364 if (CachedBitVarChanged) {
365 Init *Bit = CachedInit->getBit(CurBit->getBitNum());
366 NewBits[i] = fixBitInit(RV, CurBit, Bit);
370 CachedBitVar = CurBitVar;
371 CachedBitVarChanged = false;
376 CurBitVar = CurBitVar->resolveReferences(R, RV);
377 CachedBitVarChanged |= B != CurBitVar;
378 Changed |= B != CurBitVar;
379 } while (B != CurBitVar);
380 CachedInit = CurBitVar;
382 if (CachedBitVarChanged) {
383 Init *Bit = CurBitVar->getBit(CurBit->getBitNum());
384 NewBits[i] = fixBitInit(RV, CurBit, Bit);
389 return BitsInit::get(NewBits);
391 return const_cast<BitsInit *>(this);
394 IntInit *IntInit::get(int64_t V) {
395 static DenseMap<int64_t, std::unique_ptr<IntInit>> ThePool;
397 std::unique_ptr<IntInit> &I = ThePool[V];
398 if (!I) I.reset(new IntInit(V));
402 std::string IntInit::getAsString() const {
403 return itostr(Value);
406 /// canFitInBitfield - Return true if the number of bits is large enough to hold
407 /// the integer value.
408 static bool canFitInBitfield(int64_t Value, unsigned NumBits) {
409 // For example, with NumBits == 4, we permit Values from [-7 .. 15].
410 return (NumBits >= sizeof(Value) * 8) ||
411 (Value >> NumBits == 0) || (Value >> (NumBits-1) == -1);
414 Init *IntInit::convertInitializerTo(RecTy *Ty) const {
415 if (isa<IntRecTy>(Ty))
416 return const_cast<IntInit *>(this);
418 if (isa<BitRecTy>(Ty)) {
419 int64_t Val = getValue();
420 if (Val != 0 && Val != 1) return nullptr; // Only accept 0 or 1 for a bit!
421 return BitInit::get(Val != 0);
424 if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
425 int64_t Value = getValue();
426 // Make sure this bitfield is large enough to hold the integer value.
427 if (!canFitInBitfield(Value, BRT->getNumBits()))
430 SmallVector<Init *, 16> NewBits(BRT->getNumBits());
431 for (unsigned i = 0; i != BRT->getNumBits(); ++i)
432 NewBits[i] = BitInit::get(Value & (1LL << i));
434 return BitsInit::get(NewBits);
441 IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) const {
442 SmallVector<Init *, 16> NewBits(Bits.size());
444 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
448 NewBits[i] = BitInit::get(Value & (INT64_C(1) << Bits[i]));
450 return BitsInit::get(NewBits);
453 StringInit *StringInit::get(StringRef V) {
454 static StringMap<std::unique_ptr<StringInit>> ThePool;
456 std::unique_ptr<StringInit> &I = ThePool[V];
457 if (!I) I.reset(new StringInit(V));
461 Init *StringInit::convertInitializerTo(RecTy *Ty) const {
462 if (isa<StringRecTy>(Ty))
463 return const_cast<StringInit *>(this);
468 static void ProfileListInit(FoldingSetNodeID &ID,
469 ArrayRef<Init *> Range,
471 ID.AddInteger(Range.size());
472 ID.AddPointer(EltTy);
474 for (Init *I : Range)
478 ListInit *ListInit::get(ArrayRef<Init *> Range, RecTy *EltTy) {
479 static FoldingSet<ListInit> ThePool;
480 static std::vector<std::unique_ptr<ListInit>> TheActualPool;
483 ProfileListInit(ID, Range, EltTy);
486 if (ListInit *I = ThePool.FindNodeOrInsertPos(ID, IP))
489 ListInit *I = new ListInit(Range, EltTy);
490 ThePool.InsertNode(I, IP);
491 TheActualPool.push_back(std::unique_ptr<ListInit>(I));
495 void ListInit::Profile(FoldingSetNodeID &ID) const {
496 RecTy *EltTy = cast<ListRecTy>(getType())->getElementType();
498 ProfileListInit(ID, Values, EltTy);
501 Init *ListInit::convertInitializerTo(RecTy *Ty) const {
502 if (auto *LRT = dyn_cast<ListRecTy>(Ty)) {
503 std::vector<Init*> Elements;
505 // Verify that all of the elements of the list are subclasses of the
506 // appropriate class!
507 for (unsigned i = 0, e = getSize(); i != e; ++i)
508 if (Init *CI = getElement(i)->convertInitializerTo(LRT->getElementType()))
509 Elements.push_back(CI);
513 if (isa<ListRecTy>(getType()))
514 return ListInit::get(Elements, Ty);
521 ListInit::convertInitListSlice(const std::vector<unsigned> &Elements) const {
522 std::vector<Init*> Vals;
523 for (unsigned i = 0, e = Elements.size(); i != e; ++i) {
524 if (Elements[i] >= getSize())
526 Vals.push_back(getElement(Elements[i]));
528 return ListInit::get(Vals, getType());
531 Record *ListInit::getElementAsRecord(unsigned i) const {
532 assert(i < Values.size() && "List element index out of range!");
533 DefInit *DI = dyn_cast<DefInit>(Values[i]);
535 PrintFatalError("Expected record in list!");
539 Init *ListInit::resolveReferences(Record &R, const RecordVal *RV) const {
540 std::vector<Init*> Resolved;
541 Resolved.reserve(getSize());
542 bool Changed = false;
544 for (unsigned i = 0, e = getSize(); i != e; ++i) {
546 Init *CurElt = getElement(i);
550 CurElt = CurElt->resolveReferences(R, RV);
551 Changed |= E != CurElt;
552 } while (E != CurElt);
553 Resolved.push_back(E);
557 return ListInit::get(Resolved, getType());
558 return const_cast<ListInit *>(this);
561 Init *ListInit::resolveListElementReference(Record &R, const RecordVal *IRV,
562 unsigned Elt) const {
563 if (Elt >= getSize())
564 return nullptr; // Out of range reference.
565 Init *E = getElement(Elt);
566 // If the element is set to some value, or if we are resolving a reference
567 // to a specific variable and that variable is explicitly unset, then
568 // replace the VarListElementInit with it.
569 if (IRV || !isa<UnsetInit>(E))
574 std::string ListInit::getAsString() const {
575 std::string Result = "[";
576 for (unsigned i = 0, e = Values.size(); i != e; ++i) {
577 if (i) Result += ", ";
578 Result += Values[i]->getAsString();
583 Init *OpInit::resolveListElementReference(Record &R, const RecordVal *IRV,
584 unsigned Elt) const {
585 Init *Resolved = resolveReferences(R, IRV);
586 OpInit *OResolved = dyn_cast<OpInit>(Resolved);
588 Resolved = OResolved->Fold(&R, nullptr);
591 if (Resolved != this) {
592 TypedInit *Typed = cast<TypedInit>(Resolved);
593 if (Init *New = Typed->resolveListElementReference(R, IRV, Elt))
595 return VarListElementInit::get(Typed, Elt);
601 Init *OpInit::getBit(unsigned Bit) const {
602 if (getType() == BitRecTy::get())
603 return const_cast<OpInit*>(this);
604 return VarBitInit::get(const_cast<OpInit*>(this), Bit);
607 UnOpInit *UnOpInit::get(UnaryOp opc, Init *lhs, RecTy *Type) {
608 typedef std::pair<std::pair<unsigned, Init *>, RecTy *> Key;
609 static DenseMap<Key, std::unique_ptr<UnOpInit>> ThePool;
611 Key TheKey(std::make_pair(std::make_pair(opc, lhs), Type));
613 std::unique_ptr<UnOpInit> &I = ThePool[TheKey];
614 if (!I) I.reset(new UnOpInit(opc, lhs, Type));
618 Init *UnOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const {
619 switch (getOpcode()) {
621 if (isa<StringRecTy>(getType())) {
622 if (StringInit *LHSs = dyn_cast<StringInit>(LHS))
625 if (DefInit *LHSd = dyn_cast<DefInit>(LHS))
626 return StringInit::get(LHSd->getAsString());
628 if (IntInit *LHSi = dyn_cast<IntInit>(LHS))
629 return StringInit::get(LHSi->getAsString());
631 if (StringInit *LHSs = dyn_cast<StringInit>(LHS)) {
632 std::string Name = LHSs->getValue();
634 // From TGParser::ParseIDValue
636 if (const RecordVal *RV = CurRec->getValue(Name)) {
637 if (RV->getType() != getType())
638 PrintFatalError("type mismatch in cast");
639 return VarInit::get(Name, RV->getType());
642 Init *TemplateArgName = QualifyName(*CurRec, CurMultiClass, Name,
645 if (CurRec->isTemplateArg(TemplateArgName)) {
646 const RecordVal *RV = CurRec->getValue(TemplateArgName);
647 assert(RV && "Template arg doesn't exist??");
649 if (RV->getType() != getType())
650 PrintFatalError("type mismatch in cast");
652 return VarInit::get(TemplateArgName, RV->getType());
657 Init *MCName = QualifyName(CurMultiClass->Rec, CurMultiClass, Name,
660 if (CurMultiClass->Rec.isTemplateArg(MCName)) {
661 const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
662 assert(RV && "Template arg doesn't exist??");
664 if (RV->getType() != getType())
665 PrintFatalError("type mismatch in cast");
667 return VarInit::get(MCName, RV->getType());
670 assert(CurRec && "NULL pointer");
671 if (Record *D = (CurRec->getRecords()).getDef(Name))
672 return DefInit::get(D);
674 PrintFatalError(CurRec->getLoc(),
675 "Undefined reference:'" + Name + "'\n");
681 if (ListInit *LHSl = dyn_cast<ListInit>(LHS)) {
682 assert(!LHSl->empty() && "Empty list in head");
683 return LHSl->getElement(0);
688 if (ListInit *LHSl = dyn_cast<ListInit>(LHS)) {
689 assert(!LHSl->empty() && "Empty list in tail");
690 // Note the +1. We can't just pass the result of getValues()
692 return ListInit::get(LHSl->getValues().slice(1), LHSl->getType());
697 if (ListInit *LHSl = dyn_cast<ListInit>(LHS))
698 return IntInit::get(LHSl->empty());
699 if (StringInit *LHSs = dyn_cast<StringInit>(LHS))
700 return IntInit::get(LHSs->getValue().empty());
705 return const_cast<UnOpInit *>(this);
708 Init *UnOpInit::resolveReferences(Record &R, const RecordVal *RV) const {
709 Init *lhs = LHS->resolveReferences(R, RV);
712 return (UnOpInit::get(getOpcode(), lhs, getType()))->Fold(&R, nullptr);
713 return Fold(&R, nullptr);
716 std::string UnOpInit::getAsString() const {
719 case CAST: Result = "!cast<" + getType()->getAsString() + ">"; break;
720 case HEAD: Result = "!head"; break;
721 case TAIL: Result = "!tail"; break;
722 case EMPTY: Result = "!empty"; break;
724 return Result + "(" + LHS->getAsString() + ")";
727 BinOpInit *BinOpInit::get(BinaryOp opc, Init *lhs,
728 Init *rhs, RecTy *Type) {
730 std::pair<std::pair<unsigned, Init *>, Init *>,
734 static DenseMap<Key, std::unique_ptr<BinOpInit>> ThePool;
736 Key TheKey(std::make_pair(std::make_pair(std::make_pair(opc, lhs), rhs),
739 std::unique_ptr<BinOpInit> &I = ThePool[TheKey];
740 if (!I) I.reset(new BinOpInit(opc, lhs, rhs, Type));
744 Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const {
745 switch (getOpcode()) {
747 DagInit *LHSs = dyn_cast<DagInit>(LHS);
748 DagInit *RHSs = dyn_cast<DagInit>(RHS);
750 DefInit *LOp = dyn_cast<DefInit>(LHSs->getOperator());
751 DefInit *ROp = dyn_cast<DefInit>(RHSs->getOperator());
752 if (!LOp || !ROp || LOp->getDef() != ROp->getDef())
753 PrintFatalError("Concated Dag operators do not match!");
754 std::vector<Init*> Args;
755 std::vector<std::string> ArgNames;
756 for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) {
757 Args.push_back(LHSs->getArg(i));
758 ArgNames.push_back(LHSs->getArgName(i));
760 for (unsigned i = 0, e = RHSs->getNumArgs(); i != e; ++i) {
761 Args.push_back(RHSs->getArg(i));
762 ArgNames.push_back(RHSs->getArgName(i));
764 return DagInit::get(LHSs->getOperator(), "", Args, ArgNames);
769 ListInit *LHSs = dyn_cast<ListInit>(LHS);
770 ListInit *RHSs = dyn_cast<ListInit>(RHS);
772 std::vector<Init *> Args;
773 Args.insert(Args.end(), LHSs->begin(), LHSs->end());
774 Args.insert(Args.end(), RHSs->begin(), RHSs->end());
775 return ListInit::get(
776 Args, cast<ListRecTy>(LHSs->getType())->getElementType());
781 StringInit *LHSs = dyn_cast<StringInit>(LHS);
782 StringInit *RHSs = dyn_cast<StringInit>(RHS);
784 return StringInit::get(LHSs->getValue() + RHSs->getValue());
788 // try to fold eq comparison for 'bit' and 'int', otherwise fallback
789 // to string objects.
791 dyn_cast_or_null<IntInit>(LHS->convertInitializerTo(IntRecTy::get()));
793 dyn_cast_or_null<IntInit>(RHS->convertInitializerTo(IntRecTy::get()));
796 return IntInit::get(L->getValue() == R->getValue());
798 StringInit *LHSs = dyn_cast<StringInit>(LHS);
799 StringInit *RHSs = dyn_cast<StringInit>(RHS);
801 // Make sure we've resolved
803 return IntInit::get(LHSs->getValue() == RHSs->getValue());
813 dyn_cast_or_null<IntInit>(LHS->convertInitializerTo(IntRecTy::get()));
815 dyn_cast_or_null<IntInit>(RHS->convertInitializerTo(IntRecTy::get()));
817 int64_t LHSv = LHSi->getValue(), RHSv = RHSi->getValue();
819 switch (getOpcode()) {
820 default: llvm_unreachable("Bad opcode!");
821 case ADD: Result = LHSv + RHSv; break;
822 case AND: Result = LHSv & RHSv; break;
823 case SHL: Result = LHSv << RHSv; break;
824 case SRA: Result = LHSv >> RHSv; break;
825 case SRL: Result = (uint64_t)LHSv >> (uint64_t)RHSv; break;
827 return IntInit::get(Result);
832 return const_cast<BinOpInit *>(this);
835 Init *BinOpInit::resolveReferences(Record &R, const RecordVal *RV) const {
836 Init *lhs = LHS->resolveReferences(R, RV);
837 Init *rhs = RHS->resolveReferences(R, RV);
839 if (LHS != lhs || RHS != rhs)
840 return (BinOpInit::get(getOpcode(), lhs, rhs, getType()))->Fold(&R,nullptr);
841 return Fold(&R, nullptr);
844 std::string BinOpInit::getAsString() const {
847 case CONCAT: Result = "!con"; break;
848 case ADD: Result = "!add"; break;
849 case AND: Result = "!and"; break;
850 case SHL: Result = "!shl"; break;
851 case SRA: Result = "!sra"; break;
852 case SRL: Result = "!srl"; break;
853 case EQ: Result = "!eq"; break;
854 case LISTCONCAT: Result = "!listconcat"; break;
855 case STRCONCAT: Result = "!strconcat"; break;
857 return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")";
860 TernOpInit *TernOpInit::get(TernaryOp opc, Init *lhs, Init *mhs, Init *rhs,
864 std::pair<std::pair<unsigned, RecTy *>, Init *>,
870 static DenseMap<Key, std::unique_ptr<TernOpInit>> ThePool;
872 Key TheKey(std::make_pair(std::make_pair(std::make_pair(std::make_pair(opc,
878 std::unique_ptr<TernOpInit> &I = ThePool[TheKey];
879 if (!I) I.reset(new TernOpInit(opc, lhs, mhs, rhs, Type));
883 static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
884 Record *CurRec, MultiClass *CurMultiClass);
886 static Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg,
887 RecTy *Type, Record *CurRec,
888 MultiClass *CurMultiClass) {
889 // If this is a dag, recurse
890 if (auto *TArg = dyn_cast<TypedInit>(Arg))
891 if (isa<DagRecTy>(TArg->getType()))
892 return ForeachHelper(LHS, Arg, RHSo, Type, CurRec, CurMultiClass);
894 std::vector<Init *> NewOperands;
895 for (int i = 0; i < RHSo->getNumOperands(); ++i) {
896 if (auto *RHSoo = dyn_cast<OpInit>(RHSo->getOperand(i))) {
897 if (Init *Result = EvaluateOperation(RHSoo, LHS, Arg,
898 Type, CurRec, CurMultiClass))
899 NewOperands.push_back(Result);
901 NewOperands.push_back(Arg);
902 } else if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
903 NewOperands.push_back(Arg);
905 NewOperands.push_back(RHSo->getOperand(i));
909 // Now run the operator and use its result as the new leaf
910 const OpInit *NewOp = RHSo->clone(NewOperands);
911 Init *NewVal = NewOp->Fold(CurRec, CurMultiClass);
912 return (NewVal != NewOp) ? NewVal : nullptr;
915 static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
916 Record *CurRec, MultiClass *CurMultiClass) {
917 DagInit *MHSd = dyn_cast<DagInit>(MHS);
918 ListInit *MHSl = dyn_cast<ListInit>(MHS);
920 OpInit *RHSo = dyn_cast<OpInit>(RHS);
923 PrintFatalError(CurRec->getLoc(), "!foreach requires an operator\n");
925 TypedInit *LHSt = dyn_cast<TypedInit>(LHS);
928 PrintFatalError(CurRec->getLoc(), "!foreach requires typed variable\n");
930 if ((MHSd && isa<DagRecTy>(Type)) || (MHSl && isa<ListRecTy>(Type))) {
932 Init *Val = MHSd->getOperator();
933 Init *Result = EvaluateOperation(RHSo, LHS, Val,
934 Type, CurRec, CurMultiClass);
938 std::vector<std::pair<Init *, std::string> > args;
939 for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) {
942 Arg = MHSd->getArg(i);
943 ArgName = MHSd->getArgName(i);
946 Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type,
947 CurRec, CurMultiClass);
951 // TODO: Process arg names
952 args.push_back(std::make_pair(Arg, ArgName));
955 return DagInit::get(Val, "", args);
958 std::vector<Init *> NewOperands;
959 std::vector<Init *> NewList(MHSl->begin(), MHSl->end());
961 for (Init *&Item : NewList) {
963 for(int i = 0; i < RHSo->getNumOperands(); ++i) {
964 // First, replace the foreach variable with the list item
965 if (LHS->getAsString() == RHSo->getOperand(i)->getAsString())
966 NewOperands.push_back(Item);
968 NewOperands.push_back(RHSo->getOperand(i));
971 // Now run the operator and use its result as the new list item
972 const OpInit *NewOp = RHSo->clone(NewOperands);
973 Init *NewItem = NewOp->Fold(CurRec, CurMultiClass);
974 if (NewItem != NewOp)
977 return ListInit::get(NewList, MHSl->getType());
983 Init *TernOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const {
984 switch (getOpcode()) {
986 DefInit *LHSd = dyn_cast<DefInit>(LHS);
987 VarInit *LHSv = dyn_cast<VarInit>(LHS);
988 StringInit *LHSs = dyn_cast<StringInit>(LHS);
990 DefInit *MHSd = dyn_cast<DefInit>(MHS);
991 VarInit *MHSv = dyn_cast<VarInit>(MHS);
992 StringInit *MHSs = dyn_cast<StringInit>(MHS);
994 DefInit *RHSd = dyn_cast<DefInit>(RHS);
995 VarInit *RHSv = dyn_cast<VarInit>(RHS);
996 StringInit *RHSs = dyn_cast<StringInit>(RHS);
998 if (LHSd && MHSd && RHSd) {
999 Record *Val = RHSd->getDef();
1000 if (LHSd->getAsString() == RHSd->getAsString())
1001 Val = MHSd->getDef();
1002 return DefInit::get(Val);
1004 if (LHSv && MHSv && RHSv) {
1005 std::string Val = RHSv->getName();
1006 if (LHSv->getAsString() == RHSv->getAsString())
1007 Val = MHSv->getName();
1008 return VarInit::get(Val, getType());
1010 if (LHSs && MHSs && RHSs) {
1011 std::string Val = RHSs->getValue();
1013 std::string::size_type found;
1014 std::string::size_type idx = 0;
1016 found = Val.find(LHSs->getValue(), idx);
1017 if (found == std::string::npos)
1019 Val.replace(found, LHSs->getValue().size(), MHSs->getValue());
1020 idx = found + MHSs->getValue().size();
1023 return StringInit::get(Val);
1029 if (Init *Result = ForeachHelper(LHS, MHS, RHS, getType(),
1030 CurRec, CurMultiClass))
1036 IntInit *LHSi = dyn_cast<IntInit>(LHS);
1037 if (Init *I = LHS->convertInitializerTo(IntRecTy::get()))
1038 LHSi = dyn_cast<IntInit>(I);
1040 if (LHSi->getValue())
1048 return const_cast<TernOpInit *>(this);
1051 Init *TernOpInit::resolveReferences(Record &R,
1052 const RecordVal *RV) const {
1053 Init *lhs = LHS->resolveReferences(R, RV);
1055 if (Opc == IF && lhs != LHS) {
1056 IntInit *Value = dyn_cast<IntInit>(lhs);
1057 if (Init *I = lhs->convertInitializerTo(IntRecTy::get()))
1058 Value = dyn_cast<IntInit>(I);
1061 if (Value->getValue()) {
1062 Init *mhs = MHS->resolveReferences(R, RV);
1063 return (TernOpInit::get(getOpcode(), lhs, mhs,
1064 RHS, getType()))->Fold(&R, nullptr);
1066 Init *rhs = RHS->resolveReferences(R, RV);
1067 return (TernOpInit::get(getOpcode(), lhs, MHS,
1068 rhs, getType()))->Fold(&R, nullptr);
1072 Init *mhs = MHS->resolveReferences(R, RV);
1073 Init *rhs = RHS->resolveReferences(R, RV);
1075 if (LHS != lhs || MHS != mhs || RHS != rhs)
1076 return (TernOpInit::get(getOpcode(), lhs, mhs, rhs,
1077 getType()))->Fold(&R, nullptr);
1078 return Fold(&R, nullptr);
1081 std::string TernOpInit::getAsString() const {
1084 case SUBST: Result = "!subst"; break;
1085 case FOREACH: Result = "!foreach"; break;
1086 case IF: Result = "!if"; break;
1088 return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", " +
1089 RHS->getAsString() + ")";
1092 RecTy *TypedInit::getFieldType(const std::string &FieldName) const {
1093 if (RecordRecTy *RecordType = dyn_cast<RecordRecTy>(getType()))
1094 if (RecordVal *Field = RecordType->getRecord()->getValue(FieldName))
1095 return Field->getType();
1100 TypedInit::convertInitializerTo(RecTy *Ty) const {
1101 if (isa<IntRecTy>(Ty)) {
1102 if (getType()->typeIsConvertibleTo(Ty))
1103 return const_cast<TypedInit *>(this);
1107 if (isa<StringRecTy>(Ty)) {
1108 if (isa<StringRecTy>(getType()))
1109 return const_cast<TypedInit *>(this);
1113 if (isa<BitRecTy>(Ty)) {
1114 // Accept variable if it is already of bit type!
1115 if (isa<BitRecTy>(getType()))
1116 return const_cast<TypedInit *>(this);
1117 if (auto *BitsTy = dyn_cast<BitsRecTy>(getType())) {
1118 // Accept only bits<1> expression.
1119 if (BitsTy->getNumBits() == 1)
1120 return const_cast<TypedInit *>(this);
1123 // Ternary !if can be converted to bit, but only if both sides are
1124 // convertible to a bit.
1125 if (const auto *TOI = dyn_cast<TernOpInit>(this)) {
1126 if (TOI->getOpcode() == TernOpInit::TernaryOp::IF &&
1127 TOI->getMHS()->convertInitializerTo(BitRecTy::get()) &&
1128 TOI->getRHS()->convertInitializerTo(BitRecTy::get()))
1129 return const_cast<TypedInit *>(this);
1135 if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
1136 if (BRT->getNumBits() == 1 && isa<BitRecTy>(getType()))
1137 return BitsInit::get(const_cast<TypedInit *>(this));
1139 if (getType()->typeIsConvertibleTo(BRT)) {
1140 SmallVector<Init *, 16> NewBits(BRT->getNumBits());
1142 for (unsigned i = 0; i != BRT->getNumBits(); ++i)
1143 NewBits[i] = VarBitInit::get(const_cast<TypedInit *>(this), i);
1144 return BitsInit::get(NewBits);
1150 if (auto *DLRT = dyn_cast<ListRecTy>(Ty)) {
1151 if (auto *SLRT = dyn_cast<ListRecTy>(getType()))
1152 if (SLRT->getElementType()->typeIsConvertibleTo(DLRT->getElementType()))
1153 return const_cast<TypedInit *>(this);
1157 if (auto *DRT = dyn_cast<DagRecTy>(Ty)) {
1158 if (getType()->typeIsConvertibleTo(DRT))
1159 return const_cast<TypedInit *>(this);
1163 if (auto *SRRT = dyn_cast<RecordRecTy>(Ty)) {
1164 // Ensure that this is compatible with Rec.
1165 if (RecordRecTy *DRRT = dyn_cast<RecordRecTy>(getType()))
1166 if (DRRT->getRecord()->isSubClassOf(SRRT->getRecord()) ||
1167 DRRT->getRecord() == SRRT->getRecord())
1168 return const_cast<TypedInit *>(this);
1176 TypedInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) const {
1177 BitsRecTy *T = dyn_cast<BitsRecTy>(getType());
1178 if (!T) return nullptr; // Cannot subscript a non-bits variable.
1179 unsigned NumBits = T->getNumBits();
1181 SmallVector<Init *, 16> NewBits(Bits.size());
1182 for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
1183 if (Bits[i] >= NumBits)
1186 NewBits[i] = VarBitInit::get(const_cast<TypedInit *>(this), Bits[i]);
1188 return BitsInit::get(NewBits);
1192 TypedInit::convertInitListSlice(const std::vector<unsigned> &Elements) const {
1193 ListRecTy *T = dyn_cast<ListRecTy>(getType());
1194 if (!T) return nullptr; // Cannot subscript a non-list variable.
1196 if (Elements.size() == 1)
1197 return VarListElementInit::get(const_cast<TypedInit *>(this), Elements[0]);
1199 std::vector<Init*> ListInits;
1200 ListInits.reserve(Elements.size());
1201 for (unsigned i = 0, e = Elements.size(); i != e; ++i)
1202 ListInits.push_back(VarListElementInit::get(const_cast<TypedInit *>(this),
1204 return ListInit::get(ListInits, T);
1208 VarInit *VarInit::get(const std::string &VN, RecTy *T) {
1209 Init *Value = StringInit::get(VN);
1210 return VarInit::get(Value, T);
1213 VarInit *VarInit::get(Init *VN, RecTy *T) {
1214 typedef std::pair<RecTy *, Init *> Key;
1215 static DenseMap<Key, std::unique_ptr<VarInit>> ThePool;
1217 Key TheKey(std::make_pair(T, VN));
1219 std::unique_ptr<VarInit> &I = ThePool[TheKey];
1220 if (!I) I.reset(new VarInit(VN, T));
1224 const std::string &VarInit::getName() const {
1225 StringInit *NameString = cast<StringInit>(getNameInit());
1226 return NameString->getValue();
1229 Init *VarInit::getBit(unsigned Bit) const {
1230 if (getType() == BitRecTy::get())
1231 return const_cast<VarInit*>(this);
1232 return VarBitInit::get(const_cast<VarInit*>(this), Bit);
1235 Init *VarInit::resolveListElementReference(Record &R,
1236 const RecordVal *IRV,
1237 unsigned Elt) const {
1238 if (R.isTemplateArg(getNameInit())) return nullptr;
1239 if (IRV && IRV->getNameInit() != getNameInit()) return nullptr;
1241 RecordVal *RV = R.getValue(getNameInit());
1242 assert(RV && "Reference to a non-existent variable?");
1243 ListInit *LI = dyn_cast<ListInit>(RV->getValue());
1245 return VarListElementInit::get(cast<TypedInit>(RV->getValue()), Elt);
1247 if (Elt >= LI->getSize())
1248 return nullptr; // Out of range reference.
1249 Init *E = LI->getElement(Elt);
1250 // If the element is set to some value, or if we are resolving a reference
1251 // to a specific variable and that variable is explicitly unset, then
1252 // replace the VarListElementInit with it.
1253 if (IRV || !isa<UnsetInit>(E))
1259 RecTy *VarInit::getFieldType(const std::string &FieldName) const {
1260 if (RecordRecTy *RTy = dyn_cast<RecordRecTy>(getType()))
1261 if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
1262 return RV->getType();
1266 Init *VarInit::getFieldInit(Record &R, const RecordVal *RV,
1267 const std::string &FieldName) const {
1268 if (isa<RecordRecTy>(getType()))
1269 if (const RecordVal *Val = R.getValue(VarName)) {
1270 if (RV != Val && (RV || isa<UnsetInit>(Val->getValue())))
1272 Init *TheInit = Val->getValue();
1273 assert(TheInit != this && "Infinite loop detected!");
1274 if (Init *I = TheInit->getFieldInit(R, RV, FieldName))
1281 /// resolveReferences - This method is used by classes that refer to other
1282 /// variables which may not be defined at the time the expression is formed.
1283 /// If a value is set for the variable later, this method will be called on
1284 /// users of the value to allow the value to propagate out.
1286 Init *VarInit::resolveReferences(Record &R, const RecordVal *RV) const {
1287 if (RecordVal *Val = R.getValue(VarName))
1288 if (RV == Val || (!RV && !isa<UnsetInit>(Val->getValue())))
1289 return Val->getValue();
1290 return const_cast<VarInit *>(this);
1293 VarBitInit *VarBitInit::get(TypedInit *T, unsigned B) {
1294 typedef std::pair<TypedInit *, unsigned> Key;
1295 static DenseMap<Key, std::unique_ptr<VarBitInit>> ThePool;
1297 Key TheKey(std::make_pair(T, B));
1299 std::unique_ptr<VarBitInit> &I = ThePool[TheKey];
1300 if (!I) I.reset(new VarBitInit(T, B));
1304 Init *VarBitInit::convertInitializerTo(RecTy *Ty) const {
1305 if (isa<BitRecTy>(Ty))
1306 return const_cast<VarBitInit *>(this);
1311 std::string VarBitInit::getAsString() const {
1312 return TI->getAsString() + "{" + utostr(Bit) + "}";
1315 Init *VarBitInit::resolveReferences(Record &R, const RecordVal *RV) const {
1316 Init *I = TI->resolveReferences(R, RV);
1318 return I->getBit(getBitNum());
1320 return const_cast<VarBitInit*>(this);
1323 VarListElementInit *VarListElementInit::get(TypedInit *T,
1325 typedef std::pair<TypedInit *, unsigned> Key;
1326 static DenseMap<Key, std::unique_ptr<VarListElementInit>> ThePool;
1328 Key TheKey(std::make_pair(T, E));
1330 std::unique_ptr<VarListElementInit> &I = ThePool[TheKey];
1331 if (!I) I.reset(new VarListElementInit(T, E));
1335 std::string VarListElementInit::getAsString() const {
1336 return TI->getAsString() + "[" + utostr(Element) + "]";
1340 VarListElementInit::resolveReferences(Record &R, const RecordVal *RV) const {
1341 if (Init *I = getVariable()->resolveListElementReference(R, RV,
1344 return const_cast<VarListElementInit *>(this);
1347 Init *VarListElementInit::getBit(unsigned Bit) const {
1348 if (getType() == BitRecTy::get())
1349 return const_cast<VarListElementInit*>(this);
1350 return VarBitInit::get(const_cast<VarListElementInit*>(this), Bit);
1353 Init *VarListElementInit:: resolveListElementReference(Record &R,
1354 const RecordVal *RV,
1355 unsigned Elt) const {
1356 if (Init *Result = TI->resolveListElementReference(R, RV, Element)) {
1357 if (TypedInit *TInit = dyn_cast<TypedInit>(Result)) {
1358 Init *Result2 = TInit->resolveListElementReference(R, RV, Elt);
1359 if (Result2) return Result2;
1360 return VarListElementInit::get(TInit, Elt);
1368 DefInit *DefInit::get(Record *R) {
1369 return R->getDefInit();
1372 Init *DefInit::convertInitializerTo(RecTy *Ty) const {
1373 if (auto *RRT = dyn_cast<RecordRecTy>(Ty))
1374 if (getDef()->isSubClassOf(RRT->getRecord()))
1375 return const_cast<DefInit *>(this);
1379 RecTy *DefInit::getFieldType(const std::string &FieldName) const {
1380 if (const RecordVal *RV = Def->getValue(FieldName))
1381 return RV->getType();
1385 Init *DefInit::getFieldInit(Record &R, const RecordVal *RV,
1386 const std::string &FieldName) const {
1387 return Def->getValue(FieldName)->getValue();
1391 std::string DefInit::getAsString() const {
1392 return Def->getName();
1395 FieldInit *FieldInit::get(Init *R, const std::string &FN) {
1396 typedef std::pair<Init *, TableGenStringKey> Key;
1397 static DenseMap<Key, std::unique_ptr<FieldInit>> ThePool;
1399 Key TheKey(std::make_pair(R, FN));
1401 std::unique_ptr<FieldInit> &I = ThePool[TheKey];
1402 if (!I) I.reset(new FieldInit(R, FN));
1406 Init *FieldInit::getBit(unsigned Bit) const {
1407 if (getType() == BitRecTy::get())
1408 return const_cast<FieldInit*>(this);
1409 return VarBitInit::get(const_cast<FieldInit*>(this), Bit);
1412 Init *FieldInit::resolveListElementReference(Record &R, const RecordVal *RV,
1413 unsigned Elt) const {
1414 if (Init *ListVal = Rec->getFieldInit(R, RV, FieldName))
1415 if (ListInit *LI = dyn_cast<ListInit>(ListVal)) {
1416 if (Elt >= LI->getSize()) return nullptr;
1417 Init *E = LI->getElement(Elt);
1419 // If the element is set to some value, or if we are resolving a
1420 // reference to a specific variable and that variable is explicitly
1421 // unset, then replace the VarListElementInit with it.
1422 if (RV || !isa<UnsetInit>(E))
1428 Init *FieldInit::resolveReferences(Record &R, const RecordVal *RV) const {
1429 Init *NewRec = RV ? Rec->resolveReferences(R, RV) : Rec;
1431 if (Init *BitsVal = NewRec->getFieldInit(R, RV, FieldName)) {
1432 Init *BVR = BitsVal->resolveReferences(R, RV);
1433 return BVR->isComplete() ? BVR : const_cast<FieldInit *>(this);
1437 return FieldInit::get(NewRec, FieldName);
1438 return const_cast<FieldInit *>(this);
1441 static void ProfileDagInit(FoldingSetNodeID &ID, Init *V, const std::string &VN,
1442 ArrayRef<Init *> ArgRange,
1443 ArrayRef<std::string> NameRange) {
1447 ArrayRef<Init *>::iterator Arg = ArgRange.begin();
1448 ArrayRef<std::string>::iterator Name = NameRange.begin();
1449 while (Arg != ArgRange.end()) {
1450 assert(Name != NameRange.end() && "Arg name underflow!");
1451 ID.AddPointer(*Arg++);
1452 ID.AddString(*Name++);
1454 assert(Name == NameRange.end() && "Arg name overflow!");
1458 DagInit::get(Init *V, const std::string &VN,
1459 ArrayRef<Init *> ArgRange,
1460 ArrayRef<std::string> NameRange) {
1461 static FoldingSet<DagInit> ThePool;
1462 static std::vector<std::unique_ptr<DagInit>> TheActualPool;
1464 FoldingSetNodeID ID;
1465 ProfileDagInit(ID, V, VN, ArgRange, NameRange);
1468 if (DagInit *I = ThePool.FindNodeOrInsertPos(ID, IP))
1471 DagInit *I = new DagInit(V, VN, ArgRange, NameRange);
1472 ThePool.InsertNode(I, IP);
1473 TheActualPool.push_back(std::unique_ptr<DagInit>(I));
1478 DagInit::get(Init *V, const std::string &VN,
1479 const std::vector<std::pair<Init*, std::string> > &args) {
1480 std::vector<Init *> Args;
1481 std::vector<std::string> Names;
1483 for (const auto &Arg : args) {
1484 Args.push_back(Arg.first);
1485 Names.push_back(Arg.second);
1488 return DagInit::get(V, VN, Args, Names);
1491 void DagInit::Profile(FoldingSetNodeID &ID) const {
1492 ProfileDagInit(ID, Val, ValName, Args, ArgNames);
1495 Init *DagInit::convertInitializerTo(RecTy *Ty) const {
1496 if (isa<DagRecTy>(Ty))
1497 return const_cast<DagInit *>(this);
1502 Init *DagInit::resolveReferences(Record &R, const RecordVal *RV) const {
1503 std::vector<Init*> NewArgs;
1504 for (unsigned i = 0, e = Args.size(); i != e; ++i)
1505 NewArgs.push_back(Args[i]->resolveReferences(R, RV));
1507 Init *Op = Val->resolveReferences(R, RV);
1509 if (Args != NewArgs || Op != Val)
1510 return DagInit::get(Op, ValName, NewArgs, ArgNames);
1512 return const_cast<DagInit *>(this);
1516 std::string DagInit::getAsString() const {
1517 std::string Result = "(" + Val->getAsString();
1518 if (!ValName.empty())
1519 Result += ":" + ValName;
1520 if (!Args.empty()) {
1521 Result += " " + Args[0]->getAsString();
1522 if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0];
1523 for (unsigned i = 1, e = Args.size(); i != e; ++i) {
1524 Result += ", " + Args[i]->getAsString();
1525 if (!ArgNames[i].empty()) Result += ":$" + ArgNames[i];
1528 return Result + ")";
1532 //===----------------------------------------------------------------------===//
1533 // Other implementations
1534 //===----------------------------------------------------------------------===//
1536 RecordVal::RecordVal(Init *N, RecTy *T, unsigned P)
1537 : Name(N), Ty(T), Prefix(P) {
1538 Value = UnsetInit::get()->convertInitializerTo(Ty);
1539 assert(Value && "Cannot create unset value for current type!");
1542 RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
1543 : Name(StringInit::get(N)), Ty(T), Prefix(P) {
1544 Value = UnsetInit::get()->convertInitializerTo(Ty);
1545 assert(Value && "Cannot create unset value for current type!");
1548 const std::string &RecordVal::getName() const {
1549 return cast<StringInit>(Name)->getValue();
1552 void RecordVal::dump() const { errs() << *this; }
1554 void RecordVal::print(raw_ostream &OS, bool PrintSem) const {
1555 if (getPrefix()) OS << "field ";
1556 OS << *getType() << " " << getNameInitAsString();
1559 OS << " = " << *getValue();
1561 if (PrintSem) OS << ";\n";
1564 unsigned Record::LastID = 0;
1566 void Record::init() {
1569 // Every record potentially has a def at the top. This value is
1570 // replaced with the top-level def name at instantiation time.
1571 RecordVal DN("NAME", StringRecTy::get(), 0);
1575 void Record::checkName() {
1576 // Ensure the record name has string type.
1577 const TypedInit *TypedName = cast<const TypedInit>(Name);
1578 RecTy *Type = TypedName->getType();
1579 if (!isa<StringRecTy>(Type))
1580 PrintFatalError(getLoc(), "Record name is not a string!");
1583 DefInit *Record::getDefInit() {
1584 static DenseMap<Record *, std::unique_ptr<DefInit>> ThePool;
1588 std::unique_ptr<DefInit> &I = ThePool[this];
1589 if (!I) I.reset(new DefInit(this, new RecordRecTy(this)));
1593 const std::string &Record::getName() const {
1594 return cast<StringInit>(Name)->getValue();
1597 void Record::setName(Init *NewName) {
1600 // DO NOT resolve record values to the name at this point because
1601 // there might be default values for arguments of this def. Those
1602 // arguments might not have been resolved yet so we don't want to
1603 // prematurely assume values for those arguments were not passed to
1606 // Nonetheless, it may be that some of this Record's values
1607 // reference the record name. Indeed, the reason for having the
1608 // record name be an Init is to provide this flexibility. The extra
1609 // resolve steps after completely instantiating defs takes care of
1610 // this. See TGParser::ParseDef and TGParser::ParseDefm.
1613 void Record::setName(const std::string &Name) {
1614 setName(StringInit::get(Name));
1617 /// resolveReferencesTo - If anything in this record refers to RV, replace the
1618 /// reference to RV with the RHS of RV. If RV is null, we resolve all possible
1620 void Record::resolveReferencesTo(const RecordVal *RV) {
1621 for (unsigned i = 0, e = Values.size(); i != e; ++i) {
1622 if (RV == &Values[i]) // Skip resolve the same field as the given one
1624 if (Init *V = Values[i].getValue())
1625 if (Values[i].setValue(V->resolveReferences(*this, RV)))
1626 PrintFatalError(getLoc(), "Invalid value is found when setting '" +
1627 Values[i].getNameInitAsString() +
1628 "' after resolving references" +
1629 (RV ? " against '" + RV->getNameInitAsString() +
1630 "' of (" + RV->getValue()->getAsUnquotedString() +
1634 Init *OldName = getNameInit();
1635 Init *NewName = Name->resolveReferences(*this, RV);
1636 if (NewName != OldName) {
1637 // Re-register with RecordKeeper.
1642 void Record::dump() const { errs() << *this; }
1644 raw_ostream &llvm::operator<<(raw_ostream &OS, const Record &R) {
1645 OS << R.getNameInitAsString();
1647 const std::vector<Init *> &TArgs = R.getTemplateArgs();
1648 if (!TArgs.empty()) {
1650 for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
1652 const RecordVal *RV = R.getValue(TArgs[i]);
1653 assert(RV && "Template argument record not found??");
1654 RV->print(OS, false);
1660 const std::vector<Record*> &SC = R.getSuperClasses();
1663 for (unsigned i = 0, e = SC.size(); i != e; ++i)
1664 OS << " " << SC[i]->getNameInitAsString();
1668 const std::vector<RecordVal> &Vals = R.getValues();
1669 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
1670 if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
1672 for (unsigned i = 0, e = Vals.size(); i != e; ++i)
1673 if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
1679 /// getValueInit - Return the initializer for a value with the specified name,
1680 /// or abort if the field does not exist.
1682 Init *Record::getValueInit(StringRef FieldName) const {
1683 const RecordVal *R = getValue(FieldName);
1684 if (!R || !R->getValue())
1685 PrintFatalError(getLoc(), "Record `" + getName() +
1686 "' does not have a field named `" + FieldName + "'!\n");
1687 return R->getValue();
1691 /// getValueAsString - This method looks up the specified field and returns its
1692 /// value as a string, aborts if the field does not exist or if
1693 /// the value is not a string.
1695 std::string Record::getValueAsString(StringRef FieldName) const {
1696 const RecordVal *R = getValue(FieldName);
1697 if (!R || !R->getValue())
1698 PrintFatalError(getLoc(), "Record `" + getName() +
1699 "' does not have a field named `" + FieldName + "'!\n");
1701 if (StringInit *SI = dyn_cast<StringInit>(R->getValue()))
1702 return SI->getValue();
1703 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1704 FieldName + "' does not have a string initializer!");
1707 /// getValueAsBitsInit - This method looks up the specified field and returns
1708 /// its value as a BitsInit, aborts if the field does not exist or if
1709 /// the value is not the right type.
1711 BitsInit *Record::getValueAsBitsInit(StringRef FieldName) const {
1712 const RecordVal *R = getValue(FieldName);
1713 if (!R || !R->getValue())
1714 PrintFatalError(getLoc(), "Record `" + getName() +
1715 "' does not have a field named `" + FieldName + "'!\n");
1717 if (BitsInit *BI = dyn_cast<BitsInit>(R->getValue()))
1719 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1720 FieldName + "' does not have a BitsInit initializer!");
1723 /// getValueAsListInit - This method looks up the specified field and returns
1724 /// its value as a ListInit, aborting if the field does not exist or if
1725 /// the value is not the right type.
1727 ListInit *Record::getValueAsListInit(StringRef FieldName) const {
1728 const RecordVal *R = getValue(FieldName);
1729 if (!R || !R->getValue())
1730 PrintFatalError(getLoc(), "Record `" + getName() +
1731 "' does not have a field named `" + FieldName + "'!\n");
1733 if (ListInit *LI = dyn_cast<ListInit>(R->getValue()))
1735 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1736 FieldName + "' does not have a list initializer!");
1739 /// getValueAsListOfDefs - This method looks up the specified field and returns
1740 /// its value as a vector of records, aborting if the field does not exist
1741 /// or if the value is not the right type.
1743 std::vector<Record*>
1744 Record::getValueAsListOfDefs(StringRef FieldName) const {
1745 ListInit *List = getValueAsListInit(FieldName);
1746 std::vector<Record*> Defs;
1747 for (unsigned i = 0; i < List->getSize(); i++) {
1748 if (DefInit *DI = dyn_cast<DefInit>(List->getElement(i)))
1749 Defs.push_back(DI->getDef());
1751 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1752 FieldName + "' list is not entirely DefInit!");
1757 /// getValueAsInt - This method looks up the specified field and returns its
1758 /// value as an int64_t, aborting if the field does not exist or if the value
1759 /// is not the right type.
1761 int64_t Record::getValueAsInt(StringRef FieldName) const {
1762 const RecordVal *R = getValue(FieldName);
1763 if (!R || !R->getValue())
1764 PrintFatalError(getLoc(), "Record `" + getName() +
1765 "' does not have a field named `" + FieldName + "'!\n");
1767 if (IntInit *II = dyn_cast<IntInit>(R->getValue()))
1768 return II->getValue();
1769 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1770 FieldName + "' does not have an int initializer!");
1773 /// getValueAsListOfInts - This method looks up the specified field and returns
1774 /// its value as a vector of integers, aborting if the field does not exist or
1775 /// if the value is not the right type.
1777 std::vector<int64_t>
1778 Record::getValueAsListOfInts(StringRef FieldName) const {
1779 ListInit *List = getValueAsListInit(FieldName);
1780 std::vector<int64_t> Ints;
1781 for (unsigned i = 0; i < List->getSize(); i++) {
1782 if (IntInit *II = dyn_cast<IntInit>(List->getElement(i)))
1783 Ints.push_back(II->getValue());
1785 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1786 FieldName + "' does not have a list of ints initializer!");
1791 /// getValueAsListOfStrings - This method looks up the specified field and
1792 /// returns its value as a vector of strings, aborting if the field does not
1793 /// exist or if the value is not the right type.
1795 std::vector<std::string>
1796 Record::getValueAsListOfStrings(StringRef FieldName) const {
1797 ListInit *List = getValueAsListInit(FieldName);
1798 std::vector<std::string> Strings;
1799 for (unsigned i = 0; i < List->getSize(); i++) {
1800 if (StringInit *II = dyn_cast<StringInit>(List->getElement(i)))
1801 Strings.push_back(II->getValue());
1803 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1804 FieldName + "' does not have a list of strings initializer!");
1809 /// getValueAsDef - This method looks up the specified field and returns its
1810 /// value as a Record, aborting if the field does not exist or if the value
1811 /// is not the right type.
1813 Record *Record::getValueAsDef(StringRef FieldName) const {
1814 const RecordVal *R = getValue(FieldName);
1815 if (!R || !R->getValue())
1816 PrintFatalError(getLoc(), "Record `" + getName() +
1817 "' does not have a field named `" + FieldName + "'!\n");
1819 if (DefInit *DI = dyn_cast<DefInit>(R->getValue()))
1820 return DI->getDef();
1821 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1822 FieldName + "' does not have a def initializer!");
1825 /// getValueAsBit - This method looks up the specified field and returns its
1826 /// value as a bit, aborting if the field does not exist or if the value is
1827 /// not the right type.
1829 bool Record::getValueAsBit(StringRef FieldName) const {
1830 const RecordVal *R = getValue(FieldName);
1831 if (!R || !R->getValue())
1832 PrintFatalError(getLoc(), "Record `" + getName() +
1833 "' does not have a field named `" + FieldName + "'!\n");
1835 if (BitInit *BI = dyn_cast<BitInit>(R->getValue()))
1836 return BI->getValue();
1837 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1838 FieldName + "' does not have a bit initializer!");
1841 bool Record::getValueAsBitOrUnset(StringRef FieldName, bool &Unset) const {
1842 const RecordVal *R = getValue(FieldName);
1843 if (!R || !R->getValue())
1844 PrintFatalError(getLoc(), "Record `" + getName() +
1845 "' does not have a field named `" + FieldName.str() + "'!\n");
1847 if (isa<UnsetInit>(R->getValue())) {
1852 if (BitInit *BI = dyn_cast<BitInit>(R->getValue()))
1853 return BI->getValue();
1854 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1855 FieldName + "' does not have a bit initializer!");
1858 /// getValueAsDag - This method looks up the specified field and returns its
1859 /// value as an Dag, aborting if the field does not exist or if the value is
1860 /// not the right type.
1862 DagInit *Record::getValueAsDag(StringRef FieldName) const {
1863 const RecordVal *R = getValue(FieldName);
1864 if (!R || !R->getValue())
1865 PrintFatalError(getLoc(), "Record `" + getName() +
1866 "' does not have a field named `" + FieldName + "'!\n");
1868 if (DagInit *DI = dyn_cast<DagInit>(R->getValue()))
1870 PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1871 FieldName + "' does not have a dag initializer!");
1875 void MultiClass::dump() const {
1876 errs() << "Record:\n";
1879 errs() << "Defs:\n";
1880 for (const auto &Proto : DefPrototypes)
1885 void RecordKeeper::dump() const { errs() << *this; }
1887 raw_ostream &llvm::operator<<(raw_ostream &OS, const RecordKeeper &RK) {
1888 OS << "------------- Classes -----------------\n";
1889 for (const auto &C : RK.getClasses())
1890 OS << "class " << *C.second;
1892 OS << "------------- Defs -----------------\n";
1893 for (const auto &D : RK.getDefs())
1894 OS << "def " << *D.second;
1899 /// getAllDerivedDefinitions - This method returns all concrete definitions
1900 /// that derive from the specified class name. If a class with the specified
1901 /// name does not exist, an error is printed and true is returned.
1902 std::vector<Record*>
1903 RecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const {
1904 Record *Class = getClass(ClassName);
1906 PrintFatalError("ERROR: Couldn't find the `" + ClassName + "' class!\n");
1908 std::vector<Record*> Defs;
1909 for (const auto &D : getDefs())
1910 if (D.second->isSubClassOf(Class))
1911 Defs.push_back(D.second.get());
1916 /// QualifyName - Return an Init with a qualifier prefix referring
1917 /// to CurRec's name.
1918 Init *llvm::QualifyName(Record &CurRec, MultiClass *CurMultiClass,
1919 Init *Name, const std::string &Scoper) {
1920 RecTy *Type = cast<TypedInit>(Name)->getType();
1922 BinOpInit *NewName =
1923 BinOpInit::get(BinOpInit::STRCONCAT,
1924 BinOpInit::get(BinOpInit::STRCONCAT,
1925 CurRec.getNameInit(),
1926 StringInit::get(Scoper),
1927 Type)->Fold(&CurRec, CurMultiClass),
1931 if (CurMultiClass && Scoper != "::") {
1933 BinOpInit::get(BinOpInit::STRCONCAT,
1934 BinOpInit::get(BinOpInit::STRCONCAT,
1935 CurMultiClass->Rec.getNameInit(),
1936 StringInit::get("::"),
1937 Type)->Fold(&CurRec, CurMultiClass),
1938 NewName->Fold(&CurRec, CurMultiClass),
1942 return NewName->Fold(&CurRec, CurMultiClass);
1945 /// QualifyName - Return an Init with a qualifier prefix referring
1946 /// to CurRec's name.
1947 Init *llvm::QualifyName(Record &CurRec, MultiClass *CurMultiClass,
1948 const std::string &Name,
1949 const std::string &Scoper) {
1950 return QualifyName(CurRec, CurMultiClass, StringInit::get(Name), Scoper);