X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTableGen%2FRecord.cpp;h=271e52567a2faf30c8ff240c16591abc8d32cc8b;hb=f47cf2495ddda26f6df71d7849838ed915463687;hp=c92f1b2f61401fa2dd5f5f2afa641b53758d8429;hpb=a461c398267287d7a5d75fb3fa98d29cbfbb17f4;p=oota-llvm.git diff --git a/lib/TableGen/Record.cpp b/lib/TableGen/Record.cpp index c92f1b2f614..271e52567a2 100644 --- a/lib/TableGen/Record.cpp +++ b/lib/TableGen/Record.cpp @@ -12,16 +12,17 @@ //===----------------------------------------------------------------------===// #include "llvm/TableGen/Record.h" -#include "llvm/TableGen/Error.h" -#include "llvm/Support/DataTypes.h" -#include "llvm/Support/ErrorHandling.h" -#include "llvm/Support/Format.h" #include "llvm/ADT/DenseMap.h" #include "llvm/ADT/FoldingSet.h" -#include "llvm/ADT/SmallVector.h" +#include "llvm/ADT/Hashing.h" #include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/SmallVector.h" #include "llvm/ADT/StringExtras.h" #include "llvm/ADT/StringMap.h" +#include "llvm/Support/DataTypes.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/Format.h" +#include "llvm/TableGen/Error.h" using namespace llvm; @@ -29,6 +30,8 @@ using namespace llvm; // std::string wrapper for DenseMap purposes //===----------------------------------------------------------------------===// +namespace llvm { + /// TableGenStringKey - This is a wrapper for std::string suitable for /// using as a key to a DenseMap. Because there isn't a particularly /// good way to indicate tombstone or empty keys for strings, we want @@ -43,14 +46,16 @@ public: TableGenStringKey(const char *str) : data(str) {} const std::string &str() const { return data; } - + + friend hash_code hash_value(const TableGenStringKey &Value) { + using llvm::hash_value; + return hash_value(Value.str()); + } private: std::string data; }; /// Specialize DenseMapInfo for TableGenStringKey. -namespace llvm { - template<> struct DenseMapInfo { static inline TableGenStringKey getEmptyKey() { TableGenStringKey Empty("<<>>"); @@ -61,7 +66,8 @@ template<> struct DenseMapInfo { return Tombstone; } static unsigned getHashValue(const TableGenStringKey& Val) { - return HashString(Val.str()); + using llvm::hash_value; + return hash_value(Val); } static bool isEqual(const TableGenStringKey& LHS, const TableGenStringKey& RHS) { @@ -69,7 +75,7 @@ template<> struct DenseMapInfo { } }; -} +} // namespace llvm //===----------------------------------------------------------------------===// // Type implementations @@ -78,365 +84,125 @@ template<> struct DenseMapInfo { BitRecTy BitRecTy::Shared; IntRecTy IntRecTy::Shared; StringRecTy StringRecTy::Shared; -CodeRecTy CodeRecTy::Shared; DagRecTy DagRecTy::Shared; void RecTy::dump() const { print(errs()); } ListRecTy *RecTy::getListTy() { if (!ListTy) - ListTy = new ListRecTy(this); - return ListTy; -} - -Init *BitRecTy::convertValue(BitsInit *BI) { - if (BI->getNumBits() != 1) return 0; // Only accept if just one bit! - return BI->getBit(0); -} - -bool BitRecTy::baseClassOf(const BitsRecTy *RHS) const { - return RHS->getNumBits() == 1; + ListTy.reset(new ListRecTy(this)); + return ListTy.get(); } -Init *BitRecTy::convertValue(IntInit *II) { - int64_t Val = II->getValue(); - if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit! - - return BitInit::get(Val != 0); +bool RecTy::typeIsConvertibleTo(const RecTy *RHS) const { + assert(RHS && "NULL pointer"); + return Kind == RHS->getRecTyKind(); } -Init *BitRecTy::convertValue(TypedInit *VI) { - if (dynamic_cast(VI->getType())) - return VI; // Accept variable if it is already of bit type! - return 0; +bool BitRecTy::typeIsConvertibleTo(const RecTy *RHS) const{ + if (RecTy::typeIsConvertibleTo(RHS) || RHS->getRecTyKind() == IntRecTyKind) + return true; + if (const BitsRecTy *BitsTy = dyn_cast(RHS)) + return BitsTy->getNumBits() == 1; + return false; } BitsRecTy *BitsRecTy::get(unsigned Sz) { - static std::vector Shared; + static std::vector> Shared; if (Sz >= Shared.size()) Shared.resize(Sz + 1); - BitsRecTy *&Ty = Shared[Sz]; + std::unique_ptr &Ty = Shared[Sz]; if (!Ty) - Ty = new BitsRecTy(Sz); - return Ty; + Ty.reset(new BitsRecTy(Sz)); + return Ty.get(); } std::string BitsRecTy::getAsString() const { return "bits<" + utostr(Size) + ">"; } -Init *BitsRecTy::convertValue(UnsetInit *UI) { - SmallVector NewBits(Size); - - for (unsigned i = 0; i != Size; ++i) - NewBits[i] = UnsetInit::get(); - - return BitsInit::get(NewBits); +bool BitsRecTy::typeIsConvertibleTo(const RecTy *RHS) const { + if (RecTy::typeIsConvertibleTo(RHS)) //argument and the sender are same type + return cast(RHS)->Size == Size; + RecTyKind kind = RHS->getRecTyKind(); + return (kind == BitRecTyKind && Size == 1) || (kind == IntRecTyKind); } -Init *BitsRecTy::convertValue(BitInit *UI) { - if (Size != 1) return 0; // Can only convert single bit. - return BitsInit::get(UI); -} - -/// canFitInBitfield - Return true if the number of bits is large enough to hold -/// the integer value. -static bool canFitInBitfield(int64_t Value, unsigned NumBits) { - // For example, with NumBits == 4, we permit Values from [-7 .. 15]. - return (NumBits >= sizeof(Value) * 8) || - (Value >> NumBits == 0) || (Value >> (NumBits-1) == -1); -} - -/// convertValue from Int initializer to bits type: Split the integer up into the -/// appropriate bits. -/// -Init *BitsRecTy::convertValue(IntInit *II) { - int64_t Value = II->getValue(); - // Make sure this bitfield is large enough to hold the integer value. - if (!canFitInBitfield(Value, Size)) - return 0; - - SmallVector NewBits(Size); - - for (unsigned i = 0; i != Size; ++i) - NewBits[i] = BitInit::get(Value & (1LL << i)); - - return BitsInit::get(NewBits); +bool IntRecTy::typeIsConvertibleTo(const RecTy *RHS) const { + RecTyKind kind = RHS->getRecTyKind(); + return kind==BitRecTyKind || kind==BitsRecTyKind || kind==IntRecTyKind; } -Init *BitsRecTy::convertValue(BitsInit *BI) { - // If the number of bits is right, return it. Otherwise we need to expand or - // truncate. - if (BI->getNumBits() == Size) return BI; - return 0; -} - -Init *BitsRecTy::convertValue(TypedInit *VI) { - if (BitsRecTy *BRT = dynamic_cast(VI->getType())) - if (BRT->Size == Size) { - SmallVector NewBits(Size); - - for (unsigned i = 0; i != Size; ++i) - NewBits[i] = VarBitInit::get(VI, i); - return BitsInit::get(NewBits); - } - - if (Size == 1 && dynamic_cast(VI->getType())) - return BitsInit::get(VI); - - if (TernOpInit *Tern = dynamic_cast(VI)) { - if (Tern->getOpcode() == TernOpInit::IF) { - Init *LHS = Tern->getLHS(); - Init *MHS = Tern->getMHS(); - Init *RHS = Tern->getRHS(); - - IntInit *MHSi = dynamic_cast(MHS); - IntInit *RHSi = dynamic_cast(RHS); - - if (MHSi && RHSi) { - int64_t MHSVal = MHSi->getValue(); - int64_t RHSVal = RHSi->getValue(); - - if (canFitInBitfield(MHSVal, Size) && canFitInBitfield(RHSVal, Size)) { - SmallVector NewBits(Size); - - for (unsigned i = 0; i != Size; ++i) - NewBits[i] = - TernOpInit::get(TernOpInit::IF, LHS, - IntInit::get((MHSVal & (1LL << i)) ? 1 : 0), - IntInit::get((RHSVal & (1LL << i)) ? 1 : 0), - VI->getType()); - - return BitsInit::get(NewBits); - } - } else { - BitsInit *MHSbs = dynamic_cast(MHS); - BitsInit *RHSbs = dynamic_cast(RHS); - - if (MHSbs && RHSbs) { - SmallVector NewBits(Size); - - for (unsigned i = 0; i != Size; ++i) - NewBits[i] = TernOpInit::get(TernOpInit::IF, LHS, - MHSbs->getBit(i), - RHSbs->getBit(i), - VI->getType()); - - return BitsInit::get(NewBits); - } - } - } - } - - return 0; -} - -Init *IntRecTy::convertValue(BitInit *BI) { - return IntInit::get(BI->getValue()); -} - -Init *IntRecTy::convertValue(BitsInit *BI) { - int64_t Result = 0; - for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i) - if (BitInit *Bit = dynamic_cast(BI->getBit(i))) { - Result |= Bit->getValue() << i; - } else { - return 0; - } - return IntInit::get(Result); -} - -Init *IntRecTy::convertValue(TypedInit *TI) { - if (TI->getType()->typeIsConvertibleTo(this)) - return TI; // Accept variable if already of the right type! - return 0; -} - -Init *StringRecTy::convertValue(UnOpInit *BO) { - if (BO->getOpcode() == UnOpInit::CAST) { - Init *L = BO->getOperand()->convertInitializerTo(this); - if (L == 0) return 0; - if (L != BO->getOperand()) - return UnOpInit::get(UnOpInit::CAST, L, new StringRecTy); - return BO; - } - - return convertValue((TypedInit*)BO); -} - -Init *StringRecTy::convertValue(BinOpInit *BO) { - if (BO->getOpcode() == BinOpInit::STRCONCAT) { - Init *L = BO->getLHS()->convertInitializerTo(this); - Init *R = BO->getRHS()->convertInitializerTo(this); - if (L == 0 || R == 0) return 0; - if (L != BO->getLHS() || R != BO->getRHS()) - return BinOpInit::get(BinOpInit::STRCONCAT, L, R, new StringRecTy); - return BO; - } - - return convertValue((TypedInit*)BO); -} - - -Init *StringRecTy::convertValue(TypedInit *TI) { - if (dynamic_cast(TI->getType())) - return TI; // Accept variable if already of the right type! - return 0; +std::string StringRecTy::getAsString() const { + return "string"; } std::string ListRecTy::getAsString() const { return "list<" + Ty->getAsString() + ">"; } -Init *ListRecTy::convertValue(ListInit *LI) { - std::vector Elements; - - // Verify that all of the elements of the list are subclasses of the - // appropriate class! - for (unsigned i = 0, e = LI->getSize(); i != e; ++i) - if (Init *CI = LI->getElement(i)->convertInitializerTo(Ty)) - Elements.push_back(CI); - else - return 0; - - ListRecTy *LType = dynamic_cast(LI->getType()); - if (LType == 0) { - return 0; - } - - return ListInit::get(Elements, this); -} - -Init *ListRecTy::convertValue(TypedInit *TI) { - // Ensure that TI is compatible with our class. - if (ListRecTy *LRT = dynamic_cast(TI->getType())) - if (LRT->getElementType()->typeIsConvertibleTo(getElementType())) - return TI; - return 0; -} - -Init *CodeRecTy::convertValue(TypedInit *TI) { - if (TI->getType()->typeIsConvertibleTo(this)) - return TI; - return 0; -} - -Init *DagRecTy::convertValue(TypedInit *TI) { - if (TI->getType()->typeIsConvertibleTo(this)) - return TI; - return 0; -} - -Init *DagRecTy::convertValue(UnOpInit *BO) { - if (BO->getOpcode() == UnOpInit::CAST) { - Init *L = BO->getOperand()->convertInitializerTo(this); - if (L == 0) return 0; - if (L != BO->getOperand()) - return UnOpInit::get(UnOpInit::CAST, L, new DagRecTy); - return BO; - } - return 0; +bool ListRecTy::typeIsConvertibleTo(const RecTy *RHS) const { + if (const auto *ListTy = dyn_cast(RHS)) + return Ty->typeIsConvertibleTo(ListTy->getElementType()); + return false; } -Init *DagRecTy::convertValue(BinOpInit *BO) { - if (BO->getOpcode() == BinOpInit::CONCAT) { - Init *L = BO->getLHS()->convertInitializerTo(this); - Init *R = BO->getRHS()->convertInitializerTo(this); - if (L == 0 || R == 0) return 0; - if (L != BO->getLHS() || R != BO->getRHS()) - return BinOpInit::get(BinOpInit::CONCAT, L, R, new DagRecTy); - return BO; - } - return 0; +std::string DagRecTy::getAsString() const { + return "dag"; } RecordRecTy *RecordRecTy::get(Record *R) { - return &dynamic_cast(*R->getDefInit()->getType()); + return dyn_cast(R->getDefInit()->getType()); } std::string RecordRecTy::getAsString() const { return Rec->getName(); } -Init *RecordRecTy::convertValue(DefInit *DI) { - // Ensure that DI is a subclass of Rec. - if (!DI->getDef()->isSubClassOf(Rec)) - return 0; - return DI; -} - -Init *RecordRecTy::convertValue(TypedInit *TI) { - // Ensure that TI is compatible with Rec. - if (RecordRecTy *RRT = dynamic_cast(TI->getType())) - if (RRT->getRecord()->isSubClassOf(getRecord()) || - RRT->getRecord() == getRecord()) - return TI; - return 0; -} +bool RecordRecTy::typeIsConvertibleTo(const RecTy *RHS) const { + const RecordRecTy *RTy = dyn_cast(RHS); + if (!RTy) + return false; -bool RecordRecTy::baseClassOf(const RecordRecTy *RHS) const { - if (Rec == RHS->getRecord() || RHS->getRecord()->isSubClassOf(Rec)) + if (RTy->getRecord() == Rec || Rec->isSubClassOf(RTy->getRecord())) return true; - const std::vector &SC = Rec->getSuperClasses(); - for (unsigned i = 0, e = SC.size(); i != e; ++i) - if (RHS->getRecord()->isSubClassOf(SC[i])) + for (Record *SC : RTy->getRecord()->getSuperClasses()) + if (Rec->isSubClassOf(SC)) return true; return false; } - /// resolveTypes - Find a common type that T1 and T2 convert to. -/// Return 0 if no such type exists. +/// Return null if no such type exists. /// RecTy *llvm::resolveTypes(RecTy *T1, RecTy *T2) { - if (!T1->typeIsConvertibleTo(T2)) { - if (!T2->typeIsConvertibleTo(T1)) { - // If one is a Record type, check superclasses - RecordRecTy *RecTy1 = dynamic_cast(T1); - if (RecTy1) { - // See if T2 inherits from a type T1 also inherits from - const std::vector &T1SuperClasses = - RecTy1->getRecord()->getSuperClasses(); - for(std::vector::const_iterator i = T1SuperClasses.begin(), - iend = T1SuperClasses.end(); - i != iend; - ++i) { - RecordRecTy *SuperRecTy1 = RecordRecTy::get(*i); - RecTy *NewType1 = resolveTypes(SuperRecTy1, T2); - if (NewType1 != 0) { - if (NewType1 != SuperRecTy1) { - delete SuperRecTy1; - } - return NewType1; - } - } - } - RecordRecTy *RecTy2 = dynamic_cast(T2); - if (RecTy2) { - // See if T1 inherits from a type T2 also inherits from - const std::vector &T2SuperClasses = - RecTy2->getRecord()->getSuperClasses(); - for (std::vector::const_iterator i = T2SuperClasses.begin(), - iend = T2SuperClasses.end(); - i != iend; - ++i) { - RecordRecTy *SuperRecTy2 = RecordRecTy::get(*i); - RecTy *NewType2 = resolveTypes(T1, SuperRecTy2); - if (NewType2 != 0) { - if (NewType2 != SuperRecTy2) { - delete SuperRecTy2; - } - return NewType2; - } - } - } - return 0; - } + if (T1->typeIsConvertibleTo(T2)) return T2; + if (T2->typeIsConvertibleTo(T1)) + return T1; + + // If one is a Record type, check superclasses + if (RecordRecTy *RecTy1 = dyn_cast(T1)) { + // See if T2 inherits from a type T1 also inherits from + for (Record *SuperRec1 : RecTy1->getRecord()->getSuperClasses()) { + RecordRecTy *SuperRecTy1 = RecordRecTy::get(SuperRec1); + RecTy *NewType1 = resolveTypes(SuperRecTy1, T2); + if (NewType1) + return NewType1; + } } - return T1; + if (RecordRecTy *RecTy2 = dyn_cast(T2)) { + // See if T1 inherits from a type T2 also inherits from + for (Record *SuperRec2 : RecTy2->getRecord()->getSuperClasses()) { + RecordRecTy *SuperRecTy2 = RecordRecTy::get(SuperRec2); + RecTy *NewType2 = resolveTypes(T1, SuperRecTy2); + if (NewType2) + return NewType2; + } + } + return nullptr; } @@ -444,6 +210,7 @@ RecTy *llvm::resolveTypes(RecTy *T1, RecTy *T2) { // Initializer implementations //===----------------------------------------------------------------------===// +void Init::anchor() { } void Init::dump() const { return print(errs()); } UnsetInit *UnsetInit::get() { @@ -451,6 +218,20 @@ UnsetInit *UnsetInit::get() { return &TheInit; } +Init *UnsetInit::convertInitializerTo(RecTy *Ty) const { + if (auto *BRT = dyn_cast(Ty)) { + SmallVector NewBits(BRT->getNumBits()); + + for (unsigned i = 0; i != BRT->getNumBits(); ++i) + NewBits[i] = UnsetInit::get(); + + return BitsInit::get(NewBits); + } + + // All other types can just be returned. + return const_cast(this); +} + BitInit *BitInit::get(bool V) { static BitInit True(true); static BitInit False(false); @@ -458,31 +239,44 @@ BitInit *BitInit::get(bool V) { return V ? &True : &False; } +Init *BitInit::convertInitializerTo(RecTy *Ty) const { + if (isa(Ty)) + return const_cast(this); + + if (isa(Ty)) + return IntInit::get(getValue()); + + if (auto *BRT = dyn_cast(Ty)) { + // Can only convert single bit. + if (BRT->getNumBits() == 1) + return BitsInit::get(const_cast(this)); + } + + return nullptr; +} + static void ProfileBitsInit(FoldingSetNodeID &ID, ArrayRef Range) { ID.AddInteger(Range.size()); - for (ArrayRef::iterator i = Range.begin(), - iend = Range.end(); - i != iend; - ++i) - ID.AddPointer(*i); + for (Init *I : Range) + ID.AddPointer(I); } BitsInit *BitsInit::get(ArrayRef Range) { - typedef FoldingSet Pool; - static Pool ThePool; + static FoldingSet ThePool; + static std::vector> TheActualPool; FoldingSetNodeID ID; ProfileBitsInit(ID, Range); - void *IP = 0; + void *IP = nullptr; if (BitsInit *I = ThePool.FindNodeOrInsertPos(ID, IP)) return I; BitsInit *I = new BitsInit(Range); ThePool.InsertNode(I, IP); - + TheActualPool.push_back(std::unique_ptr(I)); return I; } @@ -490,13 +284,39 @@ void BitsInit::Profile(FoldingSetNodeID &ID) const { ProfileBitsInit(ID, Bits); } +Init *BitsInit::convertInitializerTo(RecTy *Ty) const { + if (isa(Ty)) { + if (getNumBits() != 1) return nullptr; // Only accept if just one bit! + return getBit(0); + } + + if (auto *BRT = dyn_cast(Ty)) { + // If the number of bits is right, return it. Otherwise we need to expand + // or truncate. + if (getNumBits() != BRT->getNumBits()) return nullptr; + return const_cast(this); + } + + if (isa(Ty)) { + int64_t Result = 0; + for (unsigned i = 0, e = getNumBits(); i != e; ++i) + if (auto *Bit = dyn_cast(getBit(i))) + Result |= static_cast(Bit->getValue()) << i; + else + return nullptr; + return IntInit::get(Result); + } + + return nullptr; +} + Init * BitsInit::convertInitializerBitRange(const std::vector &Bits) const { SmallVector NewBits(Bits.size()); for (unsigned i = 0, e = Bits.size(); i != e; ++i) { if (Bits[i] >= getNumBits()) - return 0; + return nullptr; NewBits[i] = getBit(Bits[i]); } return BitsInit::get(NewBits); @@ -514,6 +334,15 @@ std::string BitsInit::getAsString() const { return Result + " }"; } +// Fix bit initializer to preserve the behavior that bit reference from a unset +// bits initializer will resolve into VarBitInit to keep the field name and bit +// number used in targets with fixed insn length. +static Init *fixBitInit(const RecordVal *RV, Init *Before, Init *After) { + if (RV || !isa(After)) + return After; + return Before; +} + // resolveReferences - If there are any field references that refer to fields // that have been filled in, we can propagate the values now. // @@ -521,16 +350,39 @@ Init *BitsInit::resolveReferences(Record &R, const RecordVal *RV) const { bool Changed = false; SmallVector NewBits(getNumBits()); - for (unsigned i = 0, e = Bits.size(); i != e; ++i) { - Init *B; - Init *CurBit = getBit(i); + Init *CachedInit = nullptr; + Init *CachedBitVar = nullptr; + bool CachedBitVarChanged = false; + + for (unsigned i = 0, e = getNumBits(); i != e; ++i) { + Init *CurBit = Bits[i]; + Init *CurBitVar = CurBit->getBitVar(); - do { - B = CurBit; - CurBit = CurBit->resolveReferences(R, RV); - Changed |= B != CurBit; - } while (B != CurBit); NewBits[i] = CurBit; + + if (CurBitVar == CachedBitVar) { + if (CachedBitVarChanged) { + Init *Bit = CachedInit->getBit(CurBit->getBitNum()); + NewBits[i] = fixBitInit(RV, CurBit, Bit); + } + continue; + } + CachedBitVar = CurBitVar; + CachedBitVarChanged = false; + + Init *B; + do { + B = CurBitVar; + CurBitVar = CurBitVar->resolveReferences(R, RV); + CachedBitVarChanged |= B != CurBitVar; + Changed |= B != CurBitVar; + } while (B != CurBitVar); + CachedInit = CurBitVar; + + if (CachedBitVarChanged) { + Init *Bit = CurBitVar->getBit(CurBit->getBitNum()); + NewBits[i] = fixBitInit(RV, CurBit, Bit); + } } if (Changed) @@ -540,47 +392,77 @@ Init *BitsInit::resolveReferences(Record &R, const RecordVal *RV) const { } IntInit *IntInit::get(int64_t V) { - typedef DenseMap Pool; - static Pool ThePool; + static DenseMap> ThePool; - IntInit *&I = ThePool[V]; - if (!I) I = new IntInit(V); - return I; + std::unique_ptr &I = ThePool[V]; + if (!I) I.reset(new IntInit(V)); + return I.get(); } std::string IntInit::getAsString() const { return itostr(Value); } +/// canFitInBitfield - Return true if the number of bits is large enough to hold +/// the integer value. +static bool canFitInBitfield(int64_t Value, unsigned NumBits) { + // For example, with NumBits == 4, we permit Values from [-7 .. 15]. + return (NumBits >= sizeof(Value) * 8) || + (Value >> NumBits == 0) || (Value >> (NumBits-1) == -1); +} + +Init *IntInit::convertInitializerTo(RecTy *Ty) const { + if (isa(Ty)) + return const_cast(this); + + if (isa(Ty)) { + int64_t Val = getValue(); + if (Val != 0 && Val != 1) return nullptr; // Only accept 0 or 1 for a bit! + return BitInit::get(Val != 0); + } + + if (auto *BRT = dyn_cast(Ty)) { + int64_t Value = getValue(); + // Make sure this bitfield is large enough to hold the integer value. + if (!canFitInBitfield(Value, BRT->getNumBits())) + return nullptr; + + SmallVector NewBits(BRT->getNumBits()); + for (unsigned i = 0; i != BRT->getNumBits(); ++i) + NewBits[i] = BitInit::get(Value & (1LL << i)); + + return BitsInit::get(NewBits); + } + + return nullptr; +} + Init * IntInit::convertInitializerBitRange(const std::vector &Bits) const { SmallVector NewBits(Bits.size()); for (unsigned i = 0, e = Bits.size(); i != e; ++i) { if (Bits[i] >= 64) - return 0; + return nullptr; NewBits[i] = BitInit::get(Value & (INT64_C(1) << Bits[i])); } return BitsInit::get(NewBits); } -StringInit *StringInit::get(const std::string &V) { - typedef StringMap Pool; - static Pool ThePool; +StringInit *StringInit::get(StringRef V) { + static StringMap> ThePool; - StringInit *&I = ThePool[V]; - if (!I) I = new StringInit(V); - return I; + std::unique_ptr &I = ThePool[V]; + if (!I) I.reset(new StringInit(V)); + return I.get(); } -CodeInit *CodeInit::get(const std::string &V) { - typedef StringMap Pool; - static Pool ThePool; +Init *StringInit::convertInitializerTo(RecTy *Ty) const { + if (isa(Ty)) + return const_cast(this); - CodeInit *&I = ThePool[V]; - if (!I) I = new CodeInit(V); - return I; + return nullptr; } static void ProfileListInit(FoldingSetNodeID &ID, @@ -589,45 +471,58 @@ static void ProfileListInit(FoldingSetNodeID &ID, ID.AddInteger(Range.size()); ID.AddPointer(EltTy); - for (ArrayRef::iterator i = Range.begin(), - iend = Range.end(); - i != iend; - ++i) - ID.AddPointer(*i); + for (Init *I : Range) + ID.AddPointer(I); } ListInit *ListInit::get(ArrayRef Range, RecTy *EltTy) { - typedef FoldingSet Pool; - static Pool ThePool; + static FoldingSet ThePool; + static std::vector> TheActualPool; - // Just use the FoldingSetNodeID to compute a hash. Use a DenseMap - // for actual storage. FoldingSetNodeID ID; ProfileListInit(ID, Range, EltTy); - void *IP = 0; + void *IP = nullptr; if (ListInit *I = ThePool.FindNodeOrInsertPos(ID, IP)) return I; ListInit *I = new ListInit(Range, EltTy); ThePool.InsertNode(I, IP); + TheActualPool.push_back(std::unique_ptr(I)); return I; } void ListInit::Profile(FoldingSetNodeID &ID) const { - ListRecTy *ListType = dynamic_cast(getType()); - assert(ListType && "Bad type for ListInit!"); - RecTy *EltTy = ListType->getElementType(); + RecTy *EltTy = cast(getType())->getElementType(); ProfileListInit(ID, Values, EltTy); } +Init *ListInit::convertInitializerTo(RecTy *Ty) const { + if (auto *LRT = dyn_cast(Ty)) { + std::vector Elements; + + // Verify that all of the elements of the list are subclasses of the + // appropriate class! + for (Init *I : getValues()) + if (Init *CI = I->convertInitializerTo(LRT->getElementType())) + Elements.push_back(CI); + else + return nullptr; + + if (isa(getType())) + return ListInit::get(Elements, Ty); + } + + return nullptr; +} + Init * ListInit::convertInitListSlice(const std::vector &Elements) const { std::vector Vals; for (unsigned i = 0, e = Elements.size(); i != e; ++i) { - if (Elements[i] >= getSize()) - return 0; + if (Elements[i] >= size()) + return nullptr; Vals.push_back(getElement(Elements[i])); } return ListInit::get(Vals, getType()); @@ -635,19 +530,19 @@ ListInit::convertInitListSlice(const std::vector &Elements) const { Record *ListInit::getElementAsRecord(unsigned i) const { assert(i < Values.size() && "List element index out of range!"); - DefInit *DI = dynamic_cast(Values[i]); - if (DI == 0) throw "Expected record in list!"; + DefInit *DI = dyn_cast(Values[i]); + if (!DI) + PrintFatalError("Expected record in list!"); return DI->getDef(); } Init *ListInit::resolveReferences(Record &R, const RecordVal *RV) const { std::vector Resolved; - Resolved.reserve(getSize()); + Resolved.reserve(size()); bool Changed = false; - for (unsigned i = 0, e = getSize(); i != e; ++i) { + for (Init *CurElt : getValues()) { Init *E; - Init *CurElt = getElement(i); do { E = CurElt; @@ -664,15 +559,15 @@ Init *ListInit::resolveReferences(Record &R, const RecordVal *RV) const { Init *ListInit::resolveListElementReference(Record &R, const RecordVal *IRV, unsigned Elt) const { - if (Elt >= getSize()) - return 0; // Out of range reference. + if (Elt >= size()) + return nullptr; // Out of range reference. Init *E = getElement(Elt); // If the element is set to some value, or if we are resolving a reference // to a specific variable and that variable is explicitly unset, then // replace the VarListElementInit with it. - if (IRV || !dynamic_cast(E)) + if (IRV || !isa(E)) return E; - return 0; + return nullptr; } std::string ListInit::getAsString() const { @@ -684,164 +579,132 @@ std::string ListInit::getAsString() const { return Result + "]"; } -Init *OpInit::resolveBitReference(Record &R, const RecordVal *IRV, - unsigned Bit) const { - Init *Folded = Fold(&R, 0); - - if (Folded != this) { - TypedInit *Typed = dynamic_cast(Folded); - if (Typed) { - return Typed->resolveBitReference(R, IRV, Bit); - } - } - - return 0; -} - Init *OpInit::resolveListElementReference(Record &R, const RecordVal *IRV, unsigned Elt) const { Init *Resolved = resolveReferences(R, IRV); - OpInit *OResolved = dynamic_cast(Resolved); + OpInit *OResolved = dyn_cast(Resolved); if (OResolved) { - Resolved = OResolved->Fold(&R, 0); + Resolved = OResolved->Fold(&R, nullptr); } if (Resolved != this) { - TypedInit *Typed = dynamic_cast(Resolved); - assert(Typed && "Expected typed init for list reference"); - if (Typed) { - Init *New = Typed->resolveListElementReference(R, IRV, Elt); - if (New) - return New; - return VarListElementInit::get(Typed, Elt); - } + TypedInit *Typed = cast(Resolved); + if (Init *New = Typed->resolveListElementReference(R, IRV, Elt)) + return New; + return VarListElementInit::get(Typed, Elt); } - return 0; + return nullptr; +} + +Init *OpInit::getBit(unsigned Bit) const { + if (getType() == BitRecTy::get()) + return const_cast(this); + return VarBitInit::get(const_cast(this), Bit); } UnOpInit *UnOpInit::get(UnaryOp opc, Init *lhs, RecTy *Type) { typedef std::pair, RecTy *> Key; - - typedef DenseMap Pool; - static Pool ThePool; + static DenseMap> ThePool; Key TheKey(std::make_pair(std::make_pair(opc, lhs), Type)); - UnOpInit *&I = ThePool[TheKey]; - if (!I) I = new UnOpInit(opc, lhs, Type); - return I; + std::unique_ptr &I = ThePool[TheKey]; + if (!I) I.reset(new UnOpInit(opc, lhs, Type)); + return I.get(); } Init *UnOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const { switch (getOpcode()) { - default: assert(0 && "Unknown unop"); case CAST: { - if (getType()->getAsString() == "string") { - StringInit *LHSs = dynamic_cast(LHS); - if (LHSs) { + if (isa(getType())) { + if (StringInit *LHSs = dyn_cast(LHS)) return LHSs; - } - DefInit *LHSd = dynamic_cast(LHS); - if (LHSd) { - return StringInit::get(LHSd->getDef()->getName()); - } + if (DefInit *LHSd = dyn_cast(LHS)) + return StringInit::get(LHSd->getAsString()); + + if (IntInit *LHSi = dyn_cast(LHS)) + return StringInit::get(LHSi->getAsString()); } else { - StringInit *LHSs = dynamic_cast(LHS); - if (LHSs) { + if (StringInit *LHSs = dyn_cast(LHS)) { std::string Name = LHSs->getValue(); // From TGParser::ParseIDValue if (CurRec) { if (const RecordVal *RV = CurRec->getValue(Name)) { if (RV->getType() != getType()) - throw "type mismatch in cast"; + PrintFatalError("type mismatch in cast"); return VarInit::get(Name, RV->getType()); } Init *TemplateArgName = QualifyName(*CurRec, CurMultiClass, Name, ":"); - + if (CurRec->isTemplateArg(TemplateArgName)) { const RecordVal *RV = CurRec->getValue(TemplateArgName); assert(RV && "Template arg doesn't exist??"); if (RV->getType() != getType()) - throw "type mismatch in cast"; + PrintFatalError("type mismatch in cast"); return VarInit::get(TemplateArgName, RV->getType()); } } if (CurMultiClass) { - Init *MCName = QualifyName(CurMultiClass->Rec, CurMultiClass, Name, "::"); + Init *MCName = QualifyName(CurMultiClass->Rec, CurMultiClass, Name, + "::"); if (CurMultiClass->Rec.isTemplateArg(MCName)) { const RecordVal *RV = CurMultiClass->Rec.getValue(MCName); assert(RV && "Template arg doesn't exist??"); if (RV->getType() != getType()) - throw "type mismatch in cast"; + PrintFatalError("type mismatch in cast"); return VarInit::get(MCName, RV->getType()); } } - + assert(CurRec && "NULL pointer"); if (Record *D = (CurRec->getRecords()).getDef(Name)) return DefInit::get(D); - throw TGError(CurRec->getLoc(), "Undefined reference:'" + Name + "'\n"); + PrintFatalError(CurRec->getLoc(), + "Undefined reference:'" + Name + "'\n"); + } + + if (isa(getType())) { + if (BitsInit *BI = dyn_cast(LHS)) { + if (Init *NewInit = BI->convertInitializerTo(IntRecTy::get())) + return NewInit; + break; + } } } break; } case HEAD: { - ListInit *LHSl = dynamic_cast(LHS); - if (LHSl) { - if (LHSl->getSize() == 0) { - assert(0 && "Empty list in car"); - return 0; - } + if (ListInit *LHSl = dyn_cast(LHS)) { + assert(!LHSl->empty() && "Empty list in head"); return LHSl->getElement(0); } break; } case TAIL: { - ListInit *LHSl = dynamic_cast(LHS); - if (LHSl) { - if (LHSl->getSize() == 0) { - assert(0 && "Empty list in cdr"); - return 0; - } + if (ListInit *LHSl = dyn_cast(LHS)) { + assert(!LHSl->empty() && "Empty list in tail"); // Note the +1. We can't just pass the result of getValues() // directly. - ArrayRef::iterator begin = LHSl->getValues().begin()+1; - ArrayRef::iterator end = LHSl->getValues().end(); - ListInit *Result = - ListInit::get(ArrayRef(begin, end - begin), - LHSl->getType()); - return Result; + return ListInit::get(LHSl->getValues().slice(1), LHSl->getType()); } break; } case EMPTY: { - ListInit *LHSl = dynamic_cast(LHS); - if (LHSl) { - if (LHSl->getSize() == 0) { - return IntInit::get(1); - } else { - return IntInit::get(0); - } - } - StringInit *LHSs = dynamic_cast(LHS); - if (LHSs) { - if (LHSs->getValue().empty()) { - return IntInit::get(1); - } else { - return IntInit::get(0); - } - } + if (ListInit *LHSl = dyn_cast(LHS)) + return IntInit::get(LHSl->empty()); + if (StringInit *LHSs = dyn_cast(LHS)) + return IntInit::get(LHSs->getValue().empty()); break; } @@ -853,8 +716,8 @@ Init *UnOpInit::resolveReferences(Record &R, const RecordVal *RV) const { Init *lhs = LHS->resolveReferences(R, RV); if (LHS != lhs) - return (UnOpInit::get(getOpcode(), lhs, getType()))->Fold(&R, 0); - return Fold(&R, 0); + return (UnOpInit::get(getOpcode(), lhs, getType()))->Fold(&R, nullptr); + return Fold(&R, nullptr); } std::string UnOpInit::getAsString() const { @@ -875,28 +738,26 @@ BinOpInit *BinOpInit::get(BinaryOp opc, Init *lhs, RecTy * > Key; - typedef DenseMap Pool; - static Pool ThePool; + static DenseMap> ThePool; Key TheKey(std::make_pair(std::make_pair(std::make_pair(opc, lhs), rhs), Type)); - BinOpInit *&I = ThePool[TheKey]; - if (!I) I = new BinOpInit(opc, lhs, rhs, Type); - return I; + std::unique_ptr &I = ThePool[TheKey]; + if (!I) I.reset(new BinOpInit(opc, lhs, rhs, Type)); + return I.get(); } Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const { switch (getOpcode()) { - default: assert(0 && "Unknown binop"); case CONCAT: { - DagInit *LHSs = dynamic_cast(LHS); - DagInit *RHSs = dynamic_cast(RHS); + DagInit *LHSs = dyn_cast(LHS); + DagInit *RHSs = dyn_cast(RHS); if (LHSs && RHSs) { - DefInit *LOp = dynamic_cast(LHSs->getOperator()); - DefInit *ROp = dynamic_cast(RHSs->getOperator()); - if (LOp == 0 || ROp == 0 || LOp->getDef() != ROp->getDef()) - throw "Concated Dag operators do not match!"; + DefInit *LOp = dyn_cast(LHSs->getOperator()); + DefInit *ROp = dyn_cast(RHSs->getOperator()); + if (!LOp || !ROp || LOp->getDef() != ROp->getDef()) + PrintFatalError("Concated Dag operators do not match!"); std::vector Args; std::vector ArgNames; for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) { @@ -911,9 +772,21 @@ Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const { } break; } + case LISTCONCAT: { + ListInit *LHSs = dyn_cast(LHS); + ListInit *RHSs = dyn_cast(RHS); + if (LHSs && RHSs) { + std::vector Args; + Args.insert(Args.end(), LHSs->begin(), LHSs->end()); + Args.insert(Args.end(), RHSs->begin(), RHSs->end()); + return ListInit::get( + Args, cast(LHSs->getType())->getElementType()); + } + break; + } case STRCONCAT: { - StringInit *LHSs = dynamic_cast(LHS); - StringInit *RHSs = dynamic_cast(RHS); + StringInit *LHSs = dyn_cast(LHS); + StringInit *RHSs = dyn_cast(RHS); if (LHSs && RHSs) return StringInit::get(LHSs->getValue() + RHSs->getValue()); break; @@ -921,16 +794,16 @@ Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const { case EQ: { // try to fold eq comparison for 'bit' and 'int', otherwise fallback // to string objects. - IntInit* L = - dynamic_cast(LHS->convertInitializerTo(IntRecTy::get())); - IntInit* R = - dynamic_cast(RHS->convertInitializerTo(IntRecTy::get())); + IntInit *L = + dyn_cast_or_null(LHS->convertInitializerTo(IntRecTy::get())); + IntInit *R = + dyn_cast_or_null(RHS->convertInitializerTo(IntRecTy::get())); if (L && R) return IntInit::get(L->getValue() == R->getValue()); - StringInit *LHSs = dynamic_cast(LHS); - StringInit *RHSs = dynamic_cast(RHS); + StringInit *LHSs = dyn_cast(LHS); + StringInit *RHSs = dyn_cast(RHS); // Make sure we've resolved if (LHSs && RHSs) @@ -938,16 +811,22 @@ Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const { break; } + case ADD: + case AND: case SHL: case SRA: case SRL: { - IntInit *LHSi = dynamic_cast(LHS); - IntInit *RHSi = dynamic_cast(RHS); + IntInit *LHSi = + dyn_cast_or_null(LHS->convertInitializerTo(IntRecTy::get())); + IntInit *RHSi = + dyn_cast_or_null(RHS->convertInitializerTo(IntRecTy::get())); if (LHSi && RHSi) { int64_t LHSv = LHSi->getValue(), RHSv = RHSi->getValue(); int64_t Result; switch (getOpcode()) { - default: assert(0 && "Bad opcode!"); + default: llvm_unreachable("Bad opcode!"); + case ADD: Result = LHSv + RHSv; break; + case AND: Result = LHSv & RHSv; break; case SHL: Result = LHSv << RHSv; break; case SRA: Result = LHSv >> RHSv; break; case SRL: Result = (uint64_t)LHSv >> (uint64_t)RHSv; break; @@ -965,26 +844,28 @@ Init *BinOpInit::resolveReferences(Record &R, const RecordVal *RV) const { Init *rhs = RHS->resolveReferences(R, RV); if (LHS != lhs || RHS != rhs) - return (BinOpInit::get(getOpcode(), lhs, rhs, getType()))->Fold(&R, 0); - return Fold(&R, 0); + return (BinOpInit::get(getOpcode(), lhs, rhs, getType()))->Fold(&R,nullptr); + return Fold(&R, nullptr); } std::string BinOpInit::getAsString() const { std::string Result; switch (Opc) { case CONCAT: Result = "!con"; break; + case ADD: Result = "!add"; break; + case AND: Result = "!and"; break; case SHL: Result = "!shl"; break; case SRA: Result = "!sra"; break; case SRL: Result = "!srl"; break; case EQ: Result = "!eq"; break; + case LISTCONCAT: Result = "!listconcat"; break; case STRCONCAT: Result = "!strconcat"; break; } return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")"; } -TernOpInit *TernOpInit::get(TernaryOp opc, Init *lhs, - Init *mhs, Init *rhs, - RecTy *Type) { +TernOpInit *TernOpInit::get(TernaryOp opc, Init *lhs, Init *mhs, Init *rhs, + RecTy *Type) { typedef std::pair< std::pair< std::pair, Init *>, @@ -993,8 +874,7 @@ TernOpInit *TernOpInit::get(TernaryOp opc, Init *lhs, Init * > Key; - typedef DenseMap Pool; - static Pool ThePool; + static DenseMap> ThePool; Key TheKey(std::make_pair(std::make_pair(std::make_pair(std::make_pair(opc, Type), @@ -1002,9 +882,9 @@ TernOpInit *TernOpInit::get(TernaryOp opc, Init *lhs, mhs), rhs)); - TernOpInit *&I = ThePool[TheKey]; - if (!I) I = new TernOpInit(opc, lhs, mhs, rhs, Type); - return I; + std::unique_ptr &I = ThePool[TheKey]; + if (!I) I.reset(new TernOpInit(opc, lhs, mhs, rhs, Type)); + return I.get(); } static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type, @@ -1013,32 +893,19 @@ static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type, static Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg, RecTy *Type, Record *CurRec, MultiClass *CurMultiClass) { - std::vector NewOperands; - - TypedInit *TArg = dynamic_cast(Arg); - // If this is a dag, recurse - if (TArg && TArg->getType()->getAsString() == "dag") { - Init *Result = ForeachHelper(LHS, Arg, RHSo, Type, - CurRec, CurMultiClass); - if (Result != 0) { - return Result; - } else { - return 0; - } - } - - for (int i = 0; i < RHSo->getNumOperands(); ++i) { - OpInit *RHSoo = dynamic_cast(RHSo->getOperand(i)); + if (auto *TArg = dyn_cast(Arg)) + if (isa(TArg->getType())) + return ForeachHelper(LHS, Arg, RHSo, Type, CurRec, CurMultiClass); - if (RHSoo) { - Init *Result = EvaluateOperation(RHSoo, LHS, Arg, - Type, CurRec, CurMultiClass); - if (Result != 0) { + std::vector NewOperands; + for (unsigned i = 0; i < RHSo->getNumOperands(); ++i) { + if (auto *RHSoo = dyn_cast(RHSo->getOperand(i))) { + if (Init *Result = EvaluateOperation(RHSoo, LHS, Arg, + Type, CurRec, CurMultiClass)) NewOperands.push_back(Result); - } else { + else NewOperands.push_back(Arg); - } } else if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) { NewOperands.push_back(Arg); } else { @@ -1049,163 +916,132 @@ static Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg, // Now run the operator and use its result as the new leaf const OpInit *NewOp = RHSo->clone(NewOperands); Init *NewVal = NewOp->Fold(CurRec, CurMultiClass); - if (NewVal != NewOp) - return NewVal; - - return 0; + return (NewVal != NewOp) ? NewVal : nullptr; } static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type, Record *CurRec, MultiClass *CurMultiClass) { - DagInit *MHSd = dynamic_cast(MHS); - ListInit *MHSl = dynamic_cast(MHS); - DagRecTy *DagType = dynamic_cast(Type); - ListRecTy *ListType = dynamic_cast(Type); + OpInit *RHSo = dyn_cast(RHS); - OpInit *RHSo = dynamic_cast(RHS); + if (!RHSo) + PrintFatalError(CurRec->getLoc(), "!foreach requires an operator\n"); - if (!RHSo) { - throw TGError(CurRec->getLoc(), "!foreach requires an operator\n"); - } + TypedInit *LHSt = dyn_cast(LHS); - TypedInit *LHSt = dynamic_cast(LHS); + if (!LHSt) + PrintFatalError(CurRec->getLoc(), "!foreach requires typed variable\n"); - if (!LHSt) { - throw TGError(CurRec->getLoc(), "!foreach requires typed variable\n"); - } - - if ((MHSd && DagType) || (MHSl && ListType)) { - if (MHSd) { - Init *Val = MHSd->getOperator(); - Init *Result = EvaluateOperation(RHSo, LHS, Val, - Type, CurRec, CurMultiClass); - if (Result != 0) { - Val = Result; - } + DagInit *MHSd = dyn_cast(MHS); + if (MHSd && isa(Type)) { + Init *Val = MHSd->getOperator(); + if (Init *Result = EvaluateOperation(RHSo, LHS, Val, + Type, CurRec, CurMultiClass)) + Val = Result; - std::vector > args; - for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) { - Init *Arg; - std::string ArgName; - Arg = MHSd->getArg(i); - ArgName = MHSd->getArgName(i); - - // Process args - Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type, - CurRec, CurMultiClass); - if (Result != 0) { - Arg = Result; - } + std::vector > args; + for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) { + Init *Arg = MHSd->getArg(i); + std::string ArgName = MHSd->getArgName(i); - // TODO: Process arg names - args.push_back(std::make_pair(Arg, ArgName)); - } + // Process args + if (Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type, + CurRec, CurMultiClass)) + Arg = Result; - return DagInit::get(Val, "", args); + // TODO: Process arg names + args.push_back(std::make_pair(Arg, ArgName)); } - if (MHSl) { - std::vector NewOperands; - std::vector NewList(MHSl->begin(), MHSl->end()); - - for (std::vector::iterator li = NewList.begin(), - liend = NewList.end(); - li != liend; - ++li) { - Init *Item = *li; - NewOperands.clear(); - for(int i = 0; i < RHSo->getNumOperands(); ++i) { - // First, replace the foreach variable with the list item - if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) { - NewOperands.push_back(Item); - } else { - NewOperands.push_back(RHSo->getOperand(i)); - } - } - // Now run the operator and use its result as the new list item - const OpInit *NewOp = RHSo->clone(NewOperands); - Init *NewItem = NewOp->Fold(CurRec, CurMultiClass); - if (NewItem != NewOp) - *li = NewItem; + return DagInit::get(Val, "", args); + } + + ListInit *MHSl = dyn_cast(MHS); + if (MHSl && isa(Type)) { + std::vector NewOperands; + std::vector NewList(MHSl->begin(), MHSl->end()); + + for (Init *&Item : NewList) { + NewOperands.clear(); + for(unsigned i = 0; i < RHSo->getNumOperands(); ++i) { + // First, replace the foreach variable with the list item + if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) + NewOperands.push_back(Item); + else + NewOperands.push_back(RHSo->getOperand(i)); } - return ListInit::get(NewList, MHSl->getType()); + + // Now run the operator and use its result as the new list item + const OpInit *NewOp = RHSo->clone(NewOperands); + Init *NewItem = NewOp->Fold(CurRec, CurMultiClass); + if (NewItem != NewOp) + Item = NewItem; } + return ListInit::get(NewList, MHSl->getType()); } - return 0; + return nullptr; } Init *TernOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const { switch (getOpcode()) { - default: assert(0 && "Unknown binop"); case SUBST: { - DefInit *LHSd = dynamic_cast(LHS); - VarInit *LHSv = dynamic_cast(LHS); - StringInit *LHSs = dynamic_cast(LHS); - - DefInit *MHSd = dynamic_cast(MHS); - VarInit *MHSv = dynamic_cast(MHS); - StringInit *MHSs = dynamic_cast(MHS); - - DefInit *RHSd = dynamic_cast(RHS); - VarInit *RHSv = dynamic_cast(RHS); - StringInit *RHSs = dynamic_cast(RHS); - - if ((LHSd && MHSd && RHSd) - || (LHSv && MHSv && RHSv) - || (LHSs && MHSs && RHSs)) { - if (RHSd) { - Record *Val = RHSd->getDef(); - if (LHSd->getAsString() == RHSd->getAsString()) { - Val = MHSd->getDef(); - } - return DefInit::get(Val); - } - if (RHSv) { - std::string Val = RHSv->getName(); - if (LHSv->getAsString() == RHSv->getAsString()) { - Val = MHSv->getName(); - } - return VarInit::get(Val, getType()); + DefInit *LHSd = dyn_cast(LHS); + VarInit *LHSv = dyn_cast(LHS); + StringInit *LHSs = dyn_cast(LHS); + + DefInit *MHSd = dyn_cast(MHS); + VarInit *MHSv = dyn_cast(MHS); + StringInit *MHSs = dyn_cast(MHS); + + DefInit *RHSd = dyn_cast(RHS); + VarInit *RHSv = dyn_cast(RHS); + StringInit *RHSs = dyn_cast(RHS); + + if (LHSd && MHSd && RHSd) { + Record *Val = RHSd->getDef(); + if (LHSd->getAsString() == RHSd->getAsString()) + Val = MHSd->getDef(); + return DefInit::get(Val); + } + if (LHSv && MHSv && RHSv) { + std::string Val = RHSv->getName(); + if (LHSv->getAsString() == RHSv->getAsString()) + Val = MHSv->getName(); + return VarInit::get(Val, getType()); + } + if (LHSs && MHSs && RHSs) { + std::string Val = RHSs->getValue(); + + std::string::size_type found; + std::string::size_type idx = 0; + while (true) { + found = Val.find(LHSs->getValue(), idx); + if (found == std::string::npos) + break; + Val.replace(found, LHSs->getValue().size(), MHSs->getValue()); + idx = found + MHSs->getValue().size(); } - if (RHSs) { - std::string Val = RHSs->getValue(); - - std::string::size_type found; - std::string::size_type idx = 0; - do { - found = Val.find(LHSs->getValue(), idx); - if (found != std::string::npos) { - Val.replace(found, LHSs->getValue().size(), MHSs->getValue()); - } - idx = found + MHSs->getValue().size(); - } while (found != std::string::npos); - return StringInit::get(Val); - } + return StringInit::get(Val); } break; } case FOREACH: { - Init *Result = ForeachHelper(LHS, MHS, RHS, getType(), - CurRec, CurMultiClass); - if (Result != 0) { + if (Init *Result = ForeachHelper(LHS, MHS, RHS, getType(), + CurRec, CurMultiClass)) return Result; - } break; } case IF: { - IntInit *LHSi = dynamic_cast(LHS); + IntInit *LHSi = dyn_cast(LHS); if (Init *I = LHS->convertInitializerTo(IntRecTy::get())) - LHSi = dynamic_cast(I); + LHSi = dyn_cast(I); if (LHSi) { - if (LHSi->getValue()) { + if (LHSi->getValue()) return MHS; - } else { - return RHS; - } + return RHS; } break; } @@ -1219,20 +1055,19 @@ Init *TernOpInit::resolveReferences(Record &R, Init *lhs = LHS->resolveReferences(R, RV); if (Opc == IF && lhs != LHS) { - IntInit *Value = dynamic_cast(lhs); + IntInit *Value = dyn_cast(lhs); if (Init *I = lhs->convertInitializerTo(IntRecTy::get())) - Value = dynamic_cast(I); - if (Value != 0) { + Value = dyn_cast(I); + if (Value) { // Short-circuit if (Value->getValue()) { Init *mhs = MHS->resolveReferences(R, RV); return (TernOpInit::get(getOpcode(), lhs, mhs, - RHS, getType()))->Fold(&R, 0); - } else { - Init *rhs = RHS->resolveReferences(R, RV); - return (TernOpInit::get(getOpcode(), lhs, MHS, - rhs, getType()))->Fold(&R, 0); + RHS, getType()))->Fold(&R, nullptr); } + Init *rhs = RHS->resolveReferences(R, RV); + return (TernOpInit::get(getOpcode(), lhs, MHS, + rhs, getType()))->Fold(&R, nullptr); } } @@ -1241,8 +1076,8 @@ Init *TernOpInit::resolveReferences(Record &R, if (LHS != lhs || MHS != mhs || RHS != rhs) return (TernOpInit::get(getOpcode(), lhs, mhs, rhs, - getType()))->Fold(&R, 0); - return Fold(&R, 0); + getType()))->Fold(&R, nullptr); + return Fold(&R, nullptr); } std::string TernOpInit::getAsString() const { @@ -1251,32 +1086,104 @@ std::string TernOpInit::getAsString() const { case SUBST: Result = "!subst"; break; case FOREACH: Result = "!foreach"; break; case IF: Result = "!if"; break; - } - return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", " - + RHS->getAsString() + ")"; + } + return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", " + + RHS->getAsString() + ")"; } RecTy *TypedInit::getFieldType(const std::string &FieldName) const { - RecordRecTy *RecordType = dynamic_cast(getType()); - if (RecordType) { - RecordVal *Field = RecordType->getRecord()->getValue(FieldName); - if (Field) { + if (RecordRecTy *RecordType = dyn_cast(getType())) + if (RecordVal *Field = RecordType->getRecord()->getValue(FieldName)) return Field->getType(); + return nullptr; +} + +Init * +TypedInit::convertInitializerTo(RecTy *Ty) const { + if (isa(Ty)) { + if (getType()->typeIsConvertibleTo(Ty)) + return const_cast(this); + return nullptr; + } + + if (isa(Ty)) { + if (isa(getType())) + return const_cast(this); + return nullptr; + } + + if (isa(Ty)) { + // Accept variable if it is already of bit type! + if (isa(getType())) + return const_cast(this); + if (auto *BitsTy = dyn_cast(getType())) { + // Accept only bits<1> expression. + if (BitsTy->getNumBits() == 1) + return const_cast(this); + return nullptr; + } + // Ternary !if can be converted to bit, but only if both sides are + // convertible to a bit. + if (const auto *TOI = dyn_cast(this)) { + if (TOI->getOpcode() == TernOpInit::TernaryOp::IF && + TOI->getMHS()->convertInitializerTo(BitRecTy::get()) && + TOI->getRHS()->convertInitializerTo(BitRecTy::get())) + return const_cast(this); + return nullptr; } + return nullptr; } - return 0; + + if (auto *BRT = dyn_cast(Ty)) { + if (BRT->getNumBits() == 1 && isa(getType())) + return BitsInit::get(const_cast(this)); + + if (getType()->typeIsConvertibleTo(BRT)) { + SmallVector NewBits(BRT->getNumBits()); + + for (unsigned i = 0; i != BRT->getNumBits(); ++i) + NewBits[i] = VarBitInit::get(const_cast(this), i); + return BitsInit::get(NewBits); + } + + return nullptr; + } + + if (auto *DLRT = dyn_cast(Ty)) { + if (auto *SLRT = dyn_cast(getType())) + if (SLRT->getElementType()->typeIsConvertibleTo(DLRT->getElementType())) + return const_cast(this); + return nullptr; + } + + if (auto *DRT = dyn_cast(Ty)) { + if (getType()->typeIsConvertibleTo(DRT)) + return const_cast(this); + return nullptr; + } + + if (auto *SRRT = dyn_cast(Ty)) { + // Ensure that this is compatible with Rec. + if (RecordRecTy *DRRT = dyn_cast(getType())) + if (DRRT->getRecord()->isSubClassOf(SRRT->getRecord()) || + DRRT->getRecord() == SRRT->getRecord()) + return const_cast(this); + return nullptr; + } + + return nullptr; } Init * TypedInit::convertInitializerBitRange(const std::vector &Bits) const { - BitsRecTy *T = dynamic_cast(getType()); - if (T == 0) return 0; // Cannot subscript a non-bits variable. + BitsRecTy *T = dyn_cast(getType()); + if (!T) return nullptr; // Cannot subscript a non-bits variable. unsigned NumBits = T->getNumBits(); SmallVector NewBits(Bits.size()); for (unsigned i = 0, e = Bits.size(); i != e; ++i) { if (Bits[i] >= NumBits) - return 0; + return nullptr; NewBits[i] = VarBitInit::get(const_cast(this), Bits[i]); } @@ -1285,8 +1192,8 @@ TypedInit::convertInitializerBitRange(const std::vector &Bits) const { Init * TypedInit::convertInitListSlice(const std::vector &Elements) const { - ListRecTy *T = dynamic_cast(getType()); - if (T == 0) return 0; // Cannot subscript a non-list variable. + ListRecTy *T = dyn_cast(getType()); + if (!T) return nullptr; // Cannot subscript a non-list variable. if (Elements.size() == 1) return VarListElementInit::get(const_cast(this), Elements[0]); @@ -1307,92 +1214,70 @@ VarInit *VarInit::get(const std::string &VN, RecTy *T) { VarInit *VarInit::get(Init *VN, RecTy *T) { typedef std::pair Key; - typedef DenseMap Pool; - static Pool ThePool; + static DenseMap> ThePool; Key TheKey(std::make_pair(T, VN)); - VarInit *&I = ThePool[TheKey]; - if (!I) I = new VarInit(VN, T); - return I; + std::unique_ptr &I = ThePool[TheKey]; + if (!I) I.reset(new VarInit(VN, T)); + return I.get(); } const std::string &VarInit::getName() const { - StringInit *NameString = - dynamic_cast(getNameInit()); - assert(NameString && "VarInit name is not a string!"); + StringInit *NameString = cast(getNameInit()); return NameString->getValue(); } -Init *VarInit::resolveBitReference(Record &R, const RecordVal *IRV, - unsigned Bit) const { - if (R.isTemplateArg(getName())) return 0; - if (IRV && IRV->getName() != getName()) return 0; - - RecordVal *RV = R.getValue(getName()); - assert(RV && "Reference to a non-existent variable?"); - assert(dynamic_cast(RV->getValue())); - BitsInit *BI = (BitsInit*)RV->getValue(); - - assert(Bit < BI->getNumBits() && "Bit reference out of range!"); - Init *B = BI->getBit(Bit); - - // If the bit is set to some value, or if we are resolving a reference to a - // specific variable and that variable is explicitly unset, then replace the - // VarBitInit with it. - if (IRV || !dynamic_cast(B)) - return B; - return 0; +Init *VarInit::getBit(unsigned Bit) const { + if (getType() == BitRecTy::get()) + return const_cast(this); + return VarBitInit::get(const_cast(this), Bit); } Init *VarInit::resolveListElementReference(Record &R, const RecordVal *IRV, unsigned Elt) const { - if (R.isTemplateArg(getName())) return 0; - if (IRV && IRV->getName() != getName()) return 0; + if (R.isTemplateArg(getNameInit())) return nullptr; + if (IRV && IRV->getNameInit() != getNameInit()) return nullptr; - RecordVal *RV = R.getValue(getName()); + RecordVal *RV = R.getValue(getNameInit()); assert(RV && "Reference to a non-existent variable?"); - ListInit *LI = dynamic_cast(RV->getValue()); - if (!LI) { - TypedInit *VI = dynamic_cast(RV->getValue()); - assert(VI && "Invalid list element!"); - return VarListElementInit::get(VI, Elt); - } + ListInit *LI = dyn_cast(RV->getValue()); + if (!LI) + return VarListElementInit::get(cast(RV->getValue()), Elt); - if (Elt >= LI->getSize()) - return 0; // Out of range reference. + if (Elt >= LI->size()) + return nullptr; // Out of range reference. Init *E = LI->getElement(Elt); // If the element is set to some value, or if we are resolving a reference // to a specific variable and that variable is explicitly unset, then // replace the VarListElementInit with it. - if (IRV || !dynamic_cast(E)) + if (IRV || !isa(E)) return E; - return 0; + return nullptr; } RecTy *VarInit::getFieldType(const std::string &FieldName) const { - if (RecordRecTy *RTy = dynamic_cast(getType())) + if (RecordRecTy *RTy = dyn_cast(getType())) if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName)) return RV->getType(); - return 0; + return nullptr; } Init *VarInit::getFieldInit(Record &R, const RecordVal *RV, const std::string &FieldName) const { - if (dynamic_cast(getType())) + if (isa(getType())) if (const RecordVal *Val = R.getValue(VarName)) { - if (RV != Val && (RV || dynamic_cast(Val->getValue()))) - return 0; + if (RV != Val && (RV || isa(Val->getValue()))) + return nullptr; Init *TheInit = Val->getValue(); assert(TheInit != this && "Infinite loop detected!"); if (Init *I = TheInit->getFieldInit(R, RV, FieldName)) return I; - else - return 0; + return nullptr; } - return 0; + return nullptr; } /// resolveReferences - This method is used by classes that refer to other @@ -1402,46 +1287,51 @@ Init *VarInit::getFieldInit(Record &R, const RecordVal *RV, /// Init *VarInit::resolveReferences(Record &R, const RecordVal *RV) const { if (RecordVal *Val = R.getValue(VarName)) - if (RV == Val || (RV == 0 && !dynamic_cast(Val->getValue()))) + if (RV == Val || (!RV && !isa(Val->getValue()))) return Val->getValue(); return const_cast(this); } VarBitInit *VarBitInit::get(TypedInit *T, unsigned B) { typedef std::pair Key; - typedef DenseMap Pool; - - static Pool ThePool; + static DenseMap> ThePool; Key TheKey(std::make_pair(T, B)); - VarBitInit *&I = ThePool[TheKey]; - if (!I) I = new VarBitInit(T, B); - return I; + std::unique_ptr &I = ThePool[TheKey]; + if (!I) I.reset(new VarBitInit(T, B)); + return I.get(); +} + +Init *VarBitInit::convertInitializerTo(RecTy *Ty) const { + if (isa(Ty)) + return const_cast(this); + + return nullptr; } std::string VarBitInit::getAsString() const { - return TI->getAsString() + "{" + utostr(Bit) + "}"; + return TI->getAsString() + "{" + utostr(Bit) + "}"; } Init *VarBitInit::resolveReferences(Record &R, const RecordVal *RV) const { - if (Init *I = getVariable()->resolveBitReference(R, RV, getBitNum())) - return I; - return const_cast(this); + Init *I = TI->resolveReferences(R, RV); + if (TI != I) + return I->getBit(getBitNum()); + + return const_cast(this); } VarListElementInit *VarListElementInit::get(TypedInit *T, unsigned E) { typedef std::pair Key; - typedef DenseMap Pool; - - static Pool ThePool; + static DenseMap> ThePool; Key TheKey(std::make_pair(T, E)); - VarListElementInit *&I = ThePool[TheKey]; - if (!I) I = new VarListElementInit(T, E); - return I; + std::unique_ptr &I = ThePool[TheKey]; + if (!I) I.reset(new VarListElementInit(T, E)); + return I.get(); } std::string VarListElementInit::getAsString() const { @@ -1456,39 +1346,42 @@ VarListElementInit::resolveReferences(Record &R, const RecordVal *RV) const { return const_cast(this); } -Init *VarListElementInit::resolveBitReference(Record &R, const RecordVal *RV, - unsigned Bit) const { - // FIXME: This should be implemented, to support references like: - // bit B = AA[0]{1}; - return 0; +Init *VarListElementInit::getBit(unsigned Bit) const { + if (getType() == BitRecTy::get()) + return const_cast(this); + return VarBitInit::get(const_cast(this), Bit); } Init *VarListElementInit:: resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) const { - Init *Result = TI->resolveListElementReference(R, RV, Element); - - if (Result) { - TypedInit *TInit = dynamic_cast(Result); - if (TInit) { - Init *Result2 = TInit->resolveListElementReference(R, RV, Elt); - if (Result2) return Result2; - return new VarListElementInit(TInit, Elt); + if (Init *Result = TI->resolveListElementReference(R, RV, Element)) { + if (TypedInit *TInit = dyn_cast(Result)) { + if (Init *Result2 = TInit->resolveListElementReference(R, RV, Elt)) + return Result2; + return VarListElementInit::get(TInit, Elt); } return Result; } - - return 0; + + return nullptr; } DefInit *DefInit::get(Record *R) { return R->getDefInit(); } +Init *DefInit::convertInitializerTo(RecTy *Ty) const { + if (auto *RRT = dyn_cast(Ty)) + if (getDef()->isSubClassOf(RRT->getRecord())) + return const_cast(this); + return nullptr; +} + RecTy *DefInit::getFieldType(const std::string &FieldName) const { if (const RecordVal *RV = Def->getValue(FieldName)) return RV->getType(); - return 0; + return nullptr; } Init *DefInit::getFieldInit(Record &R, const RecordVal *RV, @@ -1503,65 +1396,53 @@ std::string DefInit::getAsString() const { FieldInit *FieldInit::get(Init *R, const std::string &FN) { typedef std::pair Key; - typedef DenseMap Pool; - static Pool ThePool; + static DenseMap> ThePool; Key TheKey(std::make_pair(R, FN)); - FieldInit *&I = ThePool[TheKey]; - if (!I) I = new FieldInit(R, FN); - return I; + std::unique_ptr &I = ThePool[TheKey]; + if (!I) I.reset(new FieldInit(R, FN)); + return I.get(); } -Init *FieldInit::resolveBitReference(Record &R, const RecordVal *RV, - unsigned Bit) const { - if (Init *BitsVal = Rec->getFieldInit(R, RV, FieldName)) - if (BitsInit *BI = dynamic_cast(BitsVal)) { - assert(Bit < BI->getNumBits() && "Bit reference out of range!"); - Init *B = BI->getBit(Bit); - - if (dynamic_cast(B)) // If the bit is set. - return B; // Replace the VarBitInit with it. - } - return 0; +Init *FieldInit::getBit(unsigned Bit) const { + if (getType() == BitRecTy::get()) + return const_cast(this); + return VarBitInit::get(const_cast(this), Bit); } Init *FieldInit::resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) const { if (Init *ListVal = Rec->getFieldInit(R, RV, FieldName)) - if (ListInit *LI = dynamic_cast(ListVal)) { - if (Elt >= LI->getSize()) return 0; + if (ListInit *LI = dyn_cast(ListVal)) { + if (Elt >= LI->size()) return nullptr; Init *E = LI->getElement(Elt); // If the element is set to some value, or if we are resolving a // reference to a specific variable and that variable is explicitly // unset, then replace the VarListElementInit with it. - if (RV || !dynamic_cast(E)) + if (RV || !isa(E)) return E; } - return 0; + return nullptr; } Init *FieldInit::resolveReferences(Record &R, const RecordVal *RV) const { Init *NewRec = RV ? Rec->resolveReferences(R, RV) : Rec; - Init *BitsVal = NewRec->getFieldInit(R, RV, FieldName); - if (BitsVal) { + if (Init *BitsVal = NewRec->getFieldInit(R, RV, FieldName)) { Init *BVR = BitsVal->resolveReferences(R, RV); return BVR->isComplete() ? BVR : const_cast(this); } - if (NewRec != Rec) { + if (NewRec != Rec) return FieldInit::get(NewRec, FieldName); - } return const_cast(this); } -void ProfileDagInit(FoldingSetNodeID &ID, - Init *V, - const std::string &VN, - ArrayRef ArgRange, - ArrayRef NameRange) { +static void ProfileDagInit(FoldingSetNodeID &ID, Init *V, const std::string &VN, + ArrayRef ArgRange, + ArrayRef NameRange) { ID.AddPointer(V); ID.AddString(VN); @@ -1579,36 +1460,31 @@ DagInit * DagInit::get(Init *V, const std::string &VN, ArrayRef ArgRange, ArrayRef NameRange) { - typedef FoldingSet Pool; - static Pool ThePool; + static FoldingSet ThePool; + static std::vector> TheActualPool; FoldingSetNodeID ID; ProfileDagInit(ID, V, VN, ArgRange, NameRange); - void *IP = 0; + void *IP = nullptr; if (DagInit *I = ThePool.FindNodeOrInsertPos(ID, IP)) return I; DagInit *I = new DagInit(V, VN, ArgRange, NameRange); ThePool.InsertNode(I, IP); - + TheActualPool.push_back(std::unique_ptr(I)); return I; } DagInit * DagInit::get(Init *V, const std::string &VN, const std::vector > &args) { - typedef std::pair PairType; - std::vector Args; std::vector Names; - for (std::vector::const_iterator i = args.begin(), - iend = args.end(); - i != iend; - ++i) { - Args.push_back(i->first); - Names.push_back(i->second); + for (const auto &Arg : args) { + Args.push_back(Arg.first); + Names.push_back(Arg.second); } return DagInit::get(V, VN, Args, Names); @@ -1618,6 +1494,13 @@ void DagInit::Profile(FoldingSetNodeID &ID) const { ProfileDagInit(ID, Val, ValName, Args, ArgNames); } +Init *DagInit::convertInitializerTo(RecTy *Ty) const { + if (isa(Ty)) + return const_cast(this); + + return nullptr; +} + Init *DagInit::resolveReferences(Record &R, const RecordVal *RV) const { std::vector NewArgs; for (unsigned i = 0, e = Args.size(); i != e; ++i) @@ -1636,7 +1519,7 @@ std::string DagInit::getAsString() const { std::string Result = "(" + Val->getAsString(); if (!ValName.empty()) Result += ":" + ValName; - if (Args.size()) { + if (!Args.empty()) { Result += " " + Args[0]->getAsString(); if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0]; for (unsigned i = 1, e = Args.size(); i != e; ++i) { @@ -1652,22 +1535,20 @@ std::string DagInit::getAsString() const { // Other implementations //===----------------------------------------------------------------------===// -RecordVal::RecordVal(Init *N, RecTy *T, unsigned P) - : Name(N), Ty(T), Prefix(P) { - Value = Ty->convertValue(UnsetInit::get()); +RecordVal::RecordVal(Init *N, RecTy *T, bool P) + : NameAndPrefix(N, P), Ty(T) { + Value = UnsetInit::get()->convertInitializerTo(Ty); assert(Value && "Cannot create unset value for current type!"); } -RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P) - : Name(StringInit::get(N)), Ty(T), Prefix(P) { - Value = Ty->convertValue(UnsetInit::get()); +RecordVal::RecordVal(const std::string &N, RecTy *T, bool P) + : NameAndPrefix(StringInit::get(N), P), Ty(T) { + Value = UnsetInit::get()->convertInitializerTo(Ty); assert(Value && "Cannot create unset value for current type!"); } const std::string &RecordVal::getName() const { - StringInit *NameString = dynamic_cast(Name); - assert(NameString && "RecordVal name is not a string!"); - return NameString->getValue(); + return cast(getNameInit())->getValue(); } void RecordVal::dump() const { errs() << *this; } @@ -1686,48 +1567,33 @@ unsigned Record::LastID = 0; void Record::init() { checkName(); + + // Every record potentially has a def at the top. This value is + // replaced with the top-level def name at instantiation time. + RecordVal DN("NAME", StringRecTy::get(), 0); + addValue(DN); } void Record::checkName() { // Ensure the record name has string type. - const TypedInit *TypedName = dynamic_cast(Name); - assert(TypedName && "Record name is not typed!"); - RecTy *Type = TypedName->getType(); - if (dynamic_cast(Type) == 0) { - llvm_unreachable("Record name is not a string!"); - } + const TypedInit *TypedName = cast(Name); + if (!isa(TypedName->getType())) + PrintFatalError(getLoc(), "Record name is not a string!"); } DefInit *Record::getDefInit() { if (!TheInit) - TheInit = new DefInit(this, new RecordRecTy(this)); - return TheInit; + TheInit.reset(new DefInit(this, new RecordRecTy(this))); + return TheInit.get(); } const std::string &Record::getName() const { - const StringInit *NameString = - dynamic_cast(Name); - assert(NameString && "Record name is not a string!"); - return NameString->getValue(); + return cast(Name)->getValue(); } void Record::setName(Init *NewName) { - if (TrackedRecords.getDef(Name->getAsUnquotedString()) == this) { - TrackedRecords.removeDef(Name->getAsUnquotedString()); - Name = NewName; - TrackedRecords.addDef(this); - } else { - TrackedRecords.removeClass(Name->getAsUnquotedString()); - Name = NewName; - TrackedRecords.addClass(this); - } + Name = NewName; checkName(); - // Since the Init for the name was changed, see if we can resolve - // any of it using members of the Record. - Init *ComputedName = Name->resolveReferences(*this, 0); - if (ComputedName != Name) { - setName(ComputedName); - } // DO NOT resolve record values to the name at this point because // there might be default values for arguments of this def. Those // arguments might not have been resolved yet so we don't want to @@ -1745,25 +1611,28 @@ void Record::setName(const std::string &Name) { setName(StringInit::get(Name)); } -const RecordVal *Record::getValue(Init *Name) const { - for (unsigned i = 0, e = Values.size(); i != e; ++i) - if (Values[i].getNameInit() == Name) return &Values[i]; - return 0; -} - -RecordVal *Record::getValue(Init *Name) { - for (unsigned i = 0, e = Values.size(); i != e; ++i) - if (Values[i].getNameInit() == Name) return &Values[i]; - return 0; -} - /// resolveReferencesTo - If anything in this record refers to RV, replace the /// reference to RV with the RHS of RV. If RV is null, we resolve all possible /// references. void Record::resolveReferencesTo(const RecordVal *RV) { for (unsigned i = 0, e = Values.size(); i != e; ++i) { + if (RV == &Values[i]) // Skip resolve the same field as the given one + continue; if (Init *V = Values[i].getValue()) - Values[i].setValue(V->resolveReferences(*this, RV)); + if (Values[i].setValue(V->resolveReferences(*this, RV))) + PrintFatalError(getLoc(), "Invalid value is found when setting '" + + Values[i].getNameInitAsString() + + "' after resolving references" + + (RV ? " against '" + RV->getNameInitAsString() + + "' of (" + RV->getValue()->getAsUnquotedString() + + ")" + : "") + "\n"); + } + Init *OldName = getNameInit(); + Init *NewName = Name->resolveReferences(*this, RV); + if (NewName != OldName) { + // Re-register with RecordKeeper. + setName(NewName); } } @@ -1775,9 +1644,11 @@ raw_ostream &llvm::operator<<(raw_ostream &OS, const Record &R) { const std::vector &TArgs = R.getTemplateArgs(); if (!TArgs.empty()) { OS << "<"; - for (unsigned i = 0, e = TArgs.size(); i != e; ++i) { - if (i) OS << ", "; - const RecordVal *RV = R.getValue(TArgs[i]); + bool NeedComma = false; + for (const Init *TA : TArgs) { + if (NeedComma) OS << ", "; + NeedComma = true; + const RecordVal *RV = R.getValue(TA); assert(RV && "Template argument record not found??"); RV->print(OS, false); } @@ -1785,216 +1656,217 @@ raw_ostream &llvm::operator<<(raw_ostream &OS, const Record &R) { } OS << " {"; - const std::vector &SC = R.getSuperClasses(); + ArrayRef SC = R.getSuperClasses(); if (!SC.empty()) { OS << "\t//"; - for (unsigned i = 0, e = SC.size(); i != e; ++i) - OS << " " << SC[i]->getNameInitAsString(); + for (const Record *Super : SC) + OS << " " << Super->getNameInitAsString(); } OS << "\n"; - const std::vector &Vals = R.getValues(); - for (unsigned i = 0, e = Vals.size(); i != e; ++i) - if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName())) - OS << Vals[i]; - for (unsigned i = 0, e = Vals.size(); i != e; ++i) - if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName())) - OS << Vals[i]; + for (const RecordVal &Val : R.getValues()) + if (Val.getPrefix() && !R.isTemplateArg(Val.getName())) + OS << Val; + for (const RecordVal &Val : R.getValues()) + if (!Val.getPrefix() && !R.isTemplateArg(Val.getName())) + OS << Val; return OS << "}\n"; } /// getValueInit - Return the initializer for a value with the specified name, -/// or throw an exception if the field does not exist. +/// or abort if the field does not exist. /// Init *Record::getValueInit(StringRef FieldName) const { const RecordVal *R = getValue(FieldName); - if (R == 0 || R->getValue() == 0) - throw "Record `" + getName() + "' does not have a field named `" + - FieldName.str() + "'!\n"; + if (!R || !R->getValue()) + PrintFatalError(getLoc(), "Record `" + getName() + + "' does not have a field named `" + FieldName + "'!\n"); return R->getValue(); } /// getValueAsString - This method looks up the specified field and returns its -/// value as a string, throwing an exception if the field does not exist or if +/// value as a string, aborts if the field does not exist or if /// the value is not a string. /// std::string Record::getValueAsString(StringRef FieldName) const { const RecordVal *R = getValue(FieldName); - if (R == 0 || R->getValue() == 0) - throw "Record `" + getName() + "' does not have a field named `" + - FieldName.str() + "'!\n"; + if (!R || !R->getValue()) + PrintFatalError(getLoc(), "Record `" + getName() + + "' does not have a field named `" + FieldName + "'!\n"); - if (StringInit *SI = dynamic_cast(R->getValue())) + if (StringInit *SI = dyn_cast(R->getValue())) return SI->getValue(); - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' does not have a string initializer!"; + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' does not have a string initializer!"); } /// getValueAsBitsInit - This method looks up the specified field and returns -/// its value as a BitsInit, throwing an exception if the field does not exist -/// or if the value is not the right type. +/// its value as a BitsInit, aborts if the field does not exist or if +/// the value is not the right type. /// BitsInit *Record::getValueAsBitsInit(StringRef FieldName) const { const RecordVal *R = getValue(FieldName); - if (R == 0 || R->getValue() == 0) - throw "Record `" + getName() + "' does not have a field named `" + - FieldName.str() + "'!\n"; + if (!R || !R->getValue()) + PrintFatalError(getLoc(), "Record `" + getName() + + "' does not have a field named `" + FieldName + "'!\n"); - if (BitsInit *BI = dynamic_cast(R->getValue())) + if (BitsInit *BI = dyn_cast(R->getValue())) return BI; - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' does not have a BitsInit initializer!"; + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' does not have a BitsInit initializer!"); } /// getValueAsListInit - This method looks up the specified field and returns -/// its value as a ListInit, throwing an exception if the field does not exist -/// or if the value is not the right type. +/// its value as a ListInit, aborting if the field does not exist or if +/// the value is not the right type. /// ListInit *Record::getValueAsListInit(StringRef FieldName) const { const RecordVal *R = getValue(FieldName); - if (R == 0 || R->getValue() == 0) - throw "Record `" + getName() + "' does not have a field named `" + - FieldName.str() + "'!\n"; + if (!R || !R->getValue()) + PrintFatalError(getLoc(), "Record `" + getName() + + "' does not have a field named `" + FieldName + "'!\n"); - if (ListInit *LI = dynamic_cast(R->getValue())) + if (ListInit *LI = dyn_cast(R->getValue())) return LI; - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' does not have a list initializer!"; + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' does not have a list initializer!"); } /// getValueAsListOfDefs - This method looks up the specified field and returns -/// its value as a vector of records, throwing an exception if the field does -/// not exist or if the value is not the right type. +/// its value as a vector of records, aborting if the field does not exist +/// or if the value is not the right type. /// std::vector Record::getValueAsListOfDefs(StringRef FieldName) const { ListInit *List = getValueAsListInit(FieldName); std::vector Defs; - for (unsigned i = 0; i < List->getSize(); i++) { - if (DefInit *DI = dynamic_cast(List->getElement(i))) { + for (Init *I : List->getValues()) { + if (DefInit *DI = dyn_cast(I)) Defs.push_back(DI->getDef()); - } else { - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' list is not entirely DefInit!"; - } + else + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' list is not entirely DefInit!"); } return Defs; } /// getValueAsInt - This method looks up the specified field and returns its -/// value as an int64_t, throwing an exception if the field does not exist or if -/// the value is not the right type. +/// value as an int64_t, aborting if the field does not exist or if the value +/// is not the right type. /// int64_t Record::getValueAsInt(StringRef FieldName) const { const RecordVal *R = getValue(FieldName); - if (R == 0 || R->getValue() == 0) - throw "Record `" + getName() + "' does not have a field named `" + - FieldName.str() + "'!\n"; + if (!R || !R->getValue()) + PrintFatalError(getLoc(), "Record `" + getName() + + "' does not have a field named `" + FieldName + "'!\n"); - if (IntInit *II = dynamic_cast(R->getValue())) + if (IntInit *II = dyn_cast(R->getValue())) return II->getValue(); - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' does not have an int initializer!"; + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' does not have an int initializer!"); } /// getValueAsListOfInts - This method looks up the specified field and returns -/// its value as a vector of integers, throwing an exception if the field does -/// not exist or if the value is not the right type. +/// its value as a vector of integers, aborting if the field does not exist or +/// if the value is not the right type. /// std::vector Record::getValueAsListOfInts(StringRef FieldName) const { ListInit *List = getValueAsListInit(FieldName); std::vector Ints; - for (unsigned i = 0; i < List->getSize(); i++) { - if (IntInit *II = dynamic_cast(List->getElement(i))) { + for (Init *I : List->getValues()) { + if (IntInit *II = dyn_cast(I)) Ints.push_back(II->getValue()); - } else { - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' does not have a list of ints initializer!"; - } + else + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' does not have a list of ints initializer!"); } return Ints; } /// getValueAsListOfStrings - This method looks up the specified field and -/// returns its value as a vector of strings, throwing an exception if the -/// field does not exist or if the value is not the right type. +/// returns its value as a vector of strings, aborting if the field does not +/// exist or if the value is not the right type. /// std::vector Record::getValueAsListOfStrings(StringRef FieldName) const { ListInit *List = getValueAsListInit(FieldName); std::vector Strings; - for (unsigned i = 0; i < List->getSize(); i++) { - if (StringInit *II = dynamic_cast(List->getElement(i))) { - Strings.push_back(II->getValue()); - } else { - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' does not have a list of strings initializer!"; - } + for (Init *I : List->getValues()) { + if (StringInit *SI = dyn_cast(I)) + Strings.push_back(SI->getValue()); + else + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' does not have a list of strings initializer!"); } return Strings; } /// getValueAsDef - This method looks up the specified field and returns its -/// value as a Record, throwing an exception if the field does not exist or if -/// the value is not the right type. +/// value as a Record, aborting if the field does not exist or if the value +/// is not the right type. /// Record *Record::getValueAsDef(StringRef FieldName) const { const RecordVal *R = getValue(FieldName); - if (R == 0 || R->getValue() == 0) - throw "Record `" + getName() + "' does not have a field named `" + - FieldName.str() + "'!\n"; + if (!R || !R->getValue()) + PrintFatalError(getLoc(), "Record `" + getName() + + "' does not have a field named `" + FieldName + "'!\n"); - if (DefInit *DI = dynamic_cast(R->getValue())) + if (DefInit *DI = dyn_cast(R->getValue())) return DI->getDef(); - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' does not have a def initializer!"; + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' does not have a def initializer!"); } /// getValueAsBit - This method looks up the specified field and returns its -/// value as a bit, throwing an exception if the field does not exist or if -/// the value is not the right type. +/// value as a bit, aborting if the field does not exist or if the value is +/// not the right type. /// bool Record::getValueAsBit(StringRef FieldName) const { const RecordVal *R = getValue(FieldName); - if (R == 0 || R->getValue() == 0) - throw "Record `" + getName() + "' does not have a field named `" + - FieldName.str() + "'!\n"; + if (!R || !R->getValue()) + PrintFatalError(getLoc(), "Record `" + getName() + + "' does not have a field named `" + FieldName + "'!\n"); - if (BitInit *BI = dynamic_cast(R->getValue())) + if (BitInit *BI = dyn_cast(R->getValue())) return BI->getValue(); - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' does not have a bit initializer!"; + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' does not have a bit initializer!"); } -/// getValueAsDag - This method looks up the specified field and returns its -/// value as an Dag, throwing an exception if the field does not exist or if -/// the value is not the right type. -/// -DagInit *Record::getValueAsDag(StringRef FieldName) const { +bool Record::getValueAsBitOrUnset(StringRef FieldName, bool &Unset) const { const RecordVal *R = getValue(FieldName); - if (R == 0 || R->getValue() == 0) - throw "Record `" + getName() + "' does not have a field named `" + - FieldName.str() + "'!\n"; + if (!R || !R->getValue()) + PrintFatalError(getLoc(), "Record `" + getName() + + "' does not have a field named `" + FieldName.str() + "'!\n"); - if (DagInit *DI = dynamic_cast(R->getValue())) - return DI; - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' does not have a dag initializer!"; + if (isa(R->getValue())) { + Unset = true; + return false; + } + Unset = false; + if (BitInit *BI = dyn_cast(R->getValue())) + return BI->getValue(); + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' does not have a bit initializer!"); } -std::string Record::getValueAsCode(StringRef FieldName) const { +/// getValueAsDag - This method looks up the specified field and returns its +/// value as an Dag, aborting if the field does not exist or if the value is +/// not the right type. +/// +DagInit *Record::getValueAsDag(StringRef FieldName) const { const RecordVal *R = getValue(FieldName); - if (R == 0 || R->getValue() == 0) - throw "Record `" + getName() + "' does not have a field named `" + - FieldName.str() + "'!\n"; + if (!R || !R->getValue()) + PrintFatalError(getLoc(), "Record `" + getName() + + "' does not have a field named `" + FieldName + "'!\n"); - if (CodeInit *CI = dynamic_cast(R->getValue())) - return CI->getValue(); - throw "Record `" + getName() + "', field `" + FieldName.str() + - "' does not have a code initializer!"; + if (DagInit *DI = dyn_cast(R->getValue())) + return DI; + PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + + FieldName + "' does not have a dag initializer!"); } @@ -2003,12 +1875,8 @@ void MultiClass::dump() const { Rec.dump(); errs() << "Defs:\n"; - for (RecordVector::const_iterator r = DefPrototypes.begin(), - rend = DefPrototypes.end(); - r != rend; - ++r) { - (*r)->dump(); - } + for (const auto &Proto : DefPrototypes) + Proto->dump(); } @@ -2016,16 +1884,12 @@ void RecordKeeper::dump() const { errs() << *this; } raw_ostream &llvm::operator<<(raw_ostream &OS, const RecordKeeper &RK) { OS << "------------- Classes -----------------\n"; - const std::map &Classes = RK.getClasses(); - for (std::map::const_iterator I = Classes.begin(), - E = Classes.end(); I != E; ++I) - OS << "class " << *I->second; + for (const auto &C : RK.getClasses()) + OS << "class " << *C.second; OS << "------------- Defs -----------------\n"; - const std::map &Defs = RK.getDefs(); - for (std::map::const_iterator I = Defs.begin(), - E = Defs.end(); I != E; ++I) - OS << "def " << *I->second; + for (const auto &D : RK.getDefs()) + OS << "def " << *D.second; return OS; } @@ -2037,13 +1901,12 @@ std::vector RecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const { Record *Class = getClass(ClassName); if (!Class) - throw "ERROR: Couldn't find the `" + ClassName + "' class!\n"; + PrintFatalError("ERROR: Couldn't find the `" + ClassName + "' class!\n"); std::vector Defs; - for (std::map::const_iterator I = getDefs().begin(), - E = getDefs().end(); I != E; ++I) - if (I->second->isSubClassOf(Class)) - Defs.push_back(I->second); + for (const auto &D : getDefs()) + if (D.second->isSubClassOf(Class)) + Defs.push_back(D.second.get()); return Defs; } @@ -2052,26 +1915,26 @@ RecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const { /// to CurRec's name. Init *llvm::QualifyName(Record &CurRec, MultiClass *CurMultiClass, Init *Name, const std::string &Scoper) { - RecTy *Type = dynamic_cast(Name)->getType(); + RecTy *Type = cast(Name)->getType(); BinOpInit *NewName = - BinOpInit::get(BinOpInit::STRCONCAT, - BinOpInit::get(BinOpInit::STRCONCAT, - CurRec.getNameInit(), - StringInit::get(Scoper), - Type)->Fold(&CurRec, CurMultiClass), - Name, - Type); + BinOpInit::get(BinOpInit::STRCONCAT, + BinOpInit::get(BinOpInit::STRCONCAT, + CurRec.getNameInit(), + StringInit::get(Scoper), + Type)->Fold(&CurRec, CurMultiClass), + Name, + Type); if (CurMultiClass && Scoper != "::") { NewName = - BinOpInit::get(BinOpInit::STRCONCAT, - BinOpInit::get(BinOpInit::STRCONCAT, - CurMultiClass->Rec.getNameInit(), - StringInit::get("::"), - Type)->Fold(&CurRec, CurMultiClass), - NewName->Fold(&CurRec, CurMultiClass), - Type); + BinOpInit::get(BinOpInit::STRCONCAT, + BinOpInit::get(BinOpInit::STRCONCAT, + CurMultiClass->Rec.getNameInit(), + StringInit::get("::"), + Type)->Fold(&CurRec, CurMultiClass), + NewName->Fold(&CurRec, CurMultiClass), + Type); } return NewName->Fold(&CurRec, CurMultiClass);