return this;
}
-/// getNumElements - If this is a vector type, return the number of elements,
-/// otherwise return zero.
-unsigned Type::getNumElements() {
- if (VectorType *VTy = dyn_cast<VectorType>(this))
- return VTy->getNumElements();
- return 0;
-}
-
/// isIntegerTy - Return true if this is an IntegerType of the specified width.
bool Type::isIntegerTy(unsigned Bitwidth) const {
return isIntegerTy() && cast<IntegerType>(this)->getBitWidth() == Bitwidth;
bool Type::isIntOrIntVectorTy() const {
if (isIntegerTy())
return true;
- if (ID != Type::VectorTyID) return false;
+ if (getTypeID() != Type::VectorTyID) return false;
return cast<VectorType>(this)->getElementType()->isIntegerTy();
}
/// isFPOrFPVectorTy - Return true if this is a FP type or a vector of FP types.
///
bool Type::isFPOrFPVectorTy() const {
- if (ID == Type::HalfTyID || ID == Type::FloatTyID || ID == Type::DoubleTyID ||
- ID == Type::FP128TyID || ID == Type::X86_FP80TyID ||
- ID == Type::PPC_FP128TyID)
+ if (getTypeID() == Type::HalfTyID || getTypeID() == Type::FloatTyID ||
+ getTypeID() == Type::DoubleTyID ||
+ getTypeID() == Type::FP128TyID || getTypeID() == Type::X86_FP80TyID ||
+ getTypeID() == Type::PPC_FP128TyID)
return true;
- if (ID != Type::VectorTyID) return false;
+ if (getTypeID() != Type::VectorTyID) return false;
return cast<VectorType>(this)->getElementType()->isFloatingPointTy();
}
if (const VectorType *VTy = dyn_cast<VectorType>(this))
return VTy->getElementType()->getFPMantissaWidth();
assert(isFloatingPointTy() && "Not a floating point type!");
- if (ID == HalfTyID) return 11;
- if (ID == FloatTyID) return 24;
- if (ID == DoubleTyID) return 53;
- if (ID == X86_FP80TyID) return 64;
- if (ID == FP128TyID) return 113;
- assert(ID == PPC_FP128TyID && "unknown fp type");
+ if (getTypeID() == HalfTyID) return 11;
+ if (getTypeID() == FloatTyID) return 24;
+ if (getTypeID() == DoubleTyID) return 53;
+ if (getTypeID() == X86_FP80TyID) return 64;
+ if (getTypeID() == FP128TyID) return 113;
+ assert(getTypeID() == PPC_FP128TyID && "unknown fp type");
return -1;
}
if (!this->isStructTy())
return false;
- // Opaque structs have no size.
- if (cast<StructType>(this)->isOpaque())
- return false;
-
- // Okay, our struct is sized if all of the elements are.
- for (subtype_iterator I = subtype_begin(), E = subtype_end(); I != E; ++I)
- if (!(*I)->isSized())
- return false;
+ return cast<StructType>(this)->isSized();
+}
- return true;
+//===----------------------------------------------------------------------===//
+// Subclass Helper Methods
+//===----------------------------------------------------------------------===//
+
+unsigned Type::getIntegerBitWidth() const {
+ return cast<IntegerType>(this)->getBitWidth();
+}
+
+bool Type::isFunctionVarArg() const {
+ return cast<FunctionType>(this)->isVarArg();
+}
+
+Type *Type::getFunctionParamType(unsigned i) const {
+ return cast<FunctionType>(this)->getParamType(i);
+}
+
+unsigned Type::getFunctionNumParams() const {
+ return cast<FunctionType>(this)->getNumParams();
+}
+
+StringRef Type::getStructName() const {
+ return cast<StructType>(this)->getName();
+}
+
+unsigned Type::getStructNumElements() const {
+ return cast<StructType>(this)->getNumElements();
+}
+
+Type *Type::getStructElementType(unsigned N) const {
+ return cast<StructType>(this)->getElementType(N);
+}
+
+
+
+Type *Type::getSequentialElementType() const {
+ return cast<SequentialType>(this)->getElementType();
+}
+
+uint64_t Type::getArrayNumElements() const {
+ return cast<ArrayType>(this)->getNumElements();
}
+unsigned Type::getVectorNumElements() const {
+ return cast<VectorType>(this)->getNumElements();
+}
+
+unsigned Type::getPointerAddressSpace() const {
+ return cast<PointerType>(this)->getAddressSpace();
+}
+
+
+
+
//===----------------------------------------------------------------------===//
// Primitive 'Type' data
//===----------------------------------------------------------------------===//
// FunctionType::get - The factory function for the FunctionType class.
FunctionType *FunctionType::get(Type *ReturnType,
ArrayRef<Type*> Params, bool isVarArg) {
- // TODO: This is brutally slow.
- std::vector<Type*> Key;
- Key.reserve(Params.size()+2);
- Key.push_back(const_cast<Type*>(ReturnType));
- for (unsigned i = 0, e = Params.size(); i != e; ++i)
- Key.push_back(const_cast<Type*>(Params[i]));
- if (isVarArg)
- Key.push_back(0);
-
LLVMContextImpl *pImpl = ReturnType->getContext().pImpl;
- FunctionType *&FT = pImpl->FunctionTypes[Key];
-
- if (FT == 0) {
+ FunctionTypeKeyInfo::KeyTy Key(ReturnType, Params, isVarArg);
+ LLVMContextImpl::FunctionTypeMap::iterator I =
+ pImpl->FunctionTypes.find_as(Key);
+ FunctionType *FT;
+
+ if (I == pImpl->FunctionTypes.end()) {
FT = (FunctionType*) pImpl->TypeAllocator.
- Allocate(sizeof(FunctionType) + sizeof(Type*)*(Params.size()+1),
+ Allocate(sizeof(FunctionType) + sizeof(Type*) * (Params.size() + 1),
AlignOf<FunctionType>::Alignment);
new (FT) FunctionType(ReturnType, Params, isVarArg);
+ pImpl->FunctionTypes[FT] = true;
+ } else {
+ FT = I->first;
}
return FT;
StructType *StructType::get(LLVMContext &Context, ArrayRef<Type*> ETypes,
bool isPacked) {
- // FIXME: std::vector is horribly inefficient for this probe.
- std::vector<Type*> Key;
- for (unsigned i = 0, e = ETypes.size(); i != e; ++i) {
- assert(isValidElementType(ETypes[i]) &&
- "Invalid type for structure element!");
- Key.push_back(ETypes[i]);
+ LLVMContextImpl *pImpl = Context.pImpl;
+ AnonStructTypeKeyInfo::KeyTy Key(ETypes, isPacked);
+ LLVMContextImpl::StructTypeMap::iterator I =
+ pImpl->AnonStructTypes.find_as(Key);
+ StructType *ST;
+
+ if (I == pImpl->AnonStructTypes.end()) {
+ // Value not found. Create a new type!
+ ST = new (Context.pImpl->TypeAllocator) StructType(Context);
+ ST->setSubclassData(SCDB_IsLiteral); // Literal struct.
+ ST->setBody(ETypes, isPacked);
+ Context.pImpl->AnonStructTypes[ST] = true;
+ } else {
+ ST = I->first;
}
- if (isPacked)
- Key.push_back(0);
-
- StructType *&ST = Context.pImpl->AnonStructTypes[Key];
- if (ST) return ST;
-
- // Value not found. Create a new type!
- ST = new (Context.pImpl->TypeAllocator) StructType(Context);
- ST->setSubclassData(SCDB_IsLiteral); // Literal struct.
- ST->setBody(ETypes, isPacked);
+
return ST;
}
setSubclassData(getSubclassData() | SCDB_HasBody);
if (isPacked)
setSubclassData(getSubclassData() | SCDB_Packed);
-
- Type **Elts = getContext().pImpl->
- TypeAllocator.Allocate<Type*>(Elements.size());
- memcpy(Elts, Elements.data(), sizeof(Elements[0])*Elements.size());
+
+ unsigned NumElements = Elements.size();
+ Type **Elts = getContext().pImpl->TypeAllocator.Allocate<Type*>(NumElements);
+ memcpy(Elts, Elements.data(), sizeof(Elements[0]) * NumElements);
ContainedTys = Elts;
- NumContainedTys = Elements.size();
+ NumContainedTys = NumElements;
}
void StructType::setName(StringRef Name) {
if (Name == getName()) return;
- // If this struct already had a name, remove its symbol table entry.
- if (SymbolTableEntry) {
- getContext().pImpl->NamedStructTypes.erase(getName());
- SymbolTableEntry = 0;
- }
-
+ StringMap<StructType *> &SymbolTable = getContext().pImpl->NamedStructTypes;
+ typedef StringMap<StructType *>::MapEntryTy EntryTy;
+
+ // If this struct already had a name, remove its symbol table entry. Don't
+ // delete the data yet because it may be part of the new name.
+ if (SymbolTableEntry)
+ SymbolTable.remove((EntryTy *)SymbolTableEntry);
+
// If this is just removing the name, we're done.
- if (Name.empty())
+ if (Name.empty()) {
+ if (SymbolTableEntry) {
+ // Delete the old string data.
+ ((EntryTy *)SymbolTableEntry)->Destroy(SymbolTable.getAllocator());
+ SymbolTableEntry = 0;
+ }
return;
+ }
// Look up the entry for the name.
- StringMapEntry<StructType*> *Entry =
- &getContext().pImpl->NamedStructTypes.GetOrCreateValue(Name);
+ EntryTy *Entry = &getContext().pImpl->NamedStructTypes.GetOrCreateValue(Name);
// While we have a name collision, try a random rename.
if (Entry->getValue()) {
SmallString<64> TempStr(Name);
TempStr.push_back('.');
raw_svector_ostream TmpStream(TempStr);
+ unsigned NameSize = Name.size();
do {
- TempStr.resize(Name.size()+1);
+ TempStr.resize(NameSize + 1);
TmpStream.resync();
TmpStream << getContext().pImpl->NamedStructTypesUniqueID++;
// Okay, we found an entry that isn't used. It's us!
Entry->setValue(this);
-
+
+ // Delete the old string data.
+ if (SymbolTableEntry)
+ ((EntryTy *)SymbolTableEntry)->Destroy(SymbolTable.getAllocator());
SymbolTableEntry = Entry;
}
return llvm::StructType::create(Ctx, StructFields, Name);
}
+bool StructType::isSized() const {
+ if ((getSubclassData() & SCDB_IsSized) != 0)
+ return true;
+ if (isOpaque())
+ return false;
+
+ // Okay, our struct is sized if all of the elements are, but if one of the
+ // elements is opaque, the struct isn't sized *yet*, but may become sized in
+ // the future, so just bail out without caching.
+ for (element_iterator I = element_begin(), E = element_end(); I != E; ++I)
+ if (!(*I)->isSized())
+ return false;
+
+ // Here we cheat a bit and cast away const-ness. The goal is to memoize when
+ // we find a sized type, as types can only move from opaque to sized, not the
+ // other way.
+ const_cast<StructType*>(this)->setSubclassData(
+ getSubclassData() | SCDB_IsSized);
+ return true;
+}
StringRef StructType::getName() const {
assert(!isLiteral() && "Literal structs never have names");
PointerType::PointerType(Type *E, unsigned AddrSpace)
: SequentialType(PointerTyID, E) {
+#ifndef NDEBUG
+ const unsigned oldNCT = NumContainedTys;
+#endif
setSubclassData(AddrSpace);
+ // Check for miscompile. PR11652.
+ assert(oldNCT == NumContainedTys && "bitfield written out of bounds?");
}
PointerType *Type::getPointerTo(unsigned addrs) {
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