class FunctionValType;
class ArrayValType;
class StructValType;
+class UnionValType;
class PointerValType;
class VectorValType;
class IntegerValType;
friend class Type;
protected:
- explicit DerivedType(TypeID id) : Type(id) {}
+ explicit DerivedType(LLVMContext &C, TypeID id) : Type(C, id) {}
/// notifyUsesThatTypeBecameConcrete - Notify AbstractTypeUsers of this type
/// that the current type has transitioned from being abstract to being
///
void dropAllTypeUses();
- /// unlockedRefineAbstractTypeTo - Internal version of refineAbstractTypeTo
- /// that performs no locking. Only used for internal recursion.
- void unlockedRefineAbstractTypeTo(const Type *NewType);
-
public:
//===--------------------------------------------------------------------===//
/// Int64Ty.
/// @brief Integer representation type
class IntegerType : public DerivedType {
+ friend class LLVMContextImpl;
+
protected:
- explicit IntegerType(unsigned NumBits) : DerivedType(IntegerTyID) {
+ explicit IntegerType(LLVMContext &C, unsigned NumBits) :
+ DerivedType(C, IntegerTyID) {
setSubclassData(NumBits);
}
friend class TypeMap<IntegerValType, IntegerType>;
/// that instance will be returned. Otherwise a new one will be created. Only
/// one instance with a given NumBits value is ever created.
/// @brief Get or create an IntegerType instance.
- static const IntegerType* get(unsigned NumBits);
+ static const IntegerType* get(LLVMContext &C, unsigned NumBits);
/// @brief Get the number of bits in this IntegerType
unsigned getBitWidth() const { return getSubclassData(); }
/// and VectorType
class CompositeType : public DerivedType {
protected:
- inline explicit CompositeType(TypeID id) : DerivedType(id) { }
+ inline explicit CompositeType(LLVMContext &C, TypeID id) :
+ DerivedType(C, id) { }
public:
/// getTypeAtIndex - Given an index value into the type, return the type of
return T->getTypeID() == ArrayTyID ||
T->getTypeID() == StructTyID ||
T->getTypeID() == PointerTyID ||
- T->getTypeID() == VectorTyID;
+ T->getTypeID() == VectorTyID ||
+ T->getTypeID() == UnionTyID;
}
};
friend class TypeMap<StructValType, StructType>;
StructType(const StructType &); // Do not implement
const StructType &operator=(const StructType &); // Do not implement
- StructType(const std::vector<const Type*> &Types, bool isPacked);
+ StructType(LLVMContext &C,
+ const std::vector<const Type*> &Types, bool isPacked);
public:
/// StructType::get - This static method is the primary way to create a
/// StructType.
};
+/// UnionType - Class to represent union types. A union type is similar to
+/// a structure, except that all member fields begin at offset 0.
+///
+class UnionType : public CompositeType {
+ friend class TypeMap<UnionValType, UnionType>;
+ UnionType(const UnionType &); // Do not implement
+ const UnionType &operator=(const UnionType &); // Do not implement
+ UnionType(LLVMContext &C, const Type* const* Types, unsigned NumTypes);
+public:
+ /// UnionType::get - This static method is the primary way to create a
+ /// UnionType.
+ static UnionType *get(const Type* const* Types, unsigned NumTypes);
+
+ /// UnionType::get - This static method is a convenience method for
+ /// creating union types by specifying the elements as arguments.
+ static UnionType *get(const Type *type, ...) END_WITH_NULL;
+
+ /// isValidElementType - Return true if the specified type is valid as a
+ /// element type.
+ static bool isValidElementType(const Type *ElemTy);
+
+ /// Given an element type, return the member index of that type, or -1
+ /// if there is no such member type.
+ int getElementTypeIndex(const Type *ElemTy) const;
+
+ // Iterator access to the elements
+ typedef Type::subtype_iterator element_iterator;
+ element_iterator element_begin() const { return ContainedTys; }
+ element_iterator element_end() const { return &ContainedTys[NumContainedTys];}
+
+ // Random access to the elements
+ unsigned getNumElements() const { return NumContainedTys; }
+ const Type *getElementType(unsigned N) const {
+ assert(N < NumContainedTys && "Element number out of range!");
+ return ContainedTys[N];
+ }
+
+ /// getTypeAtIndex - Given an index value into the type, return the type of
+ /// the element. For a union type, this must be a constant value...
+ ///
+ virtual const Type *getTypeAtIndex(const Value *V) const;
+ virtual const Type *getTypeAtIndex(unsigned Idx) const;
+ virtual bool indexValid(const Value *V) const;
+ virtual bool indexValid(unsigned Idx) const;
+
+ // Implement the AbstractTypeUser interface.
+ virtual void refineAbstractType(const DerivedType *OldTy, const Type *NewTy);
+ virtual void typeBecameConcrete(const DerivedType *AbsTy);
+
+ // Methods for support type inquiry through isa, cast, and dyn_cast:
+ static inline bool classof(const UnionType *) { return true; }
+ static inline bool classof(const Type *T) {
+ return T->getTypeID() == UnionTyID;
+ }
+};
+
+
/// SequentialType - This is the superclass of the array, pointer and vector
/// type classes. All of these represent "arrays" in memory. The array type
/// represents a specifically sized array, pointer types are unsized/unknown
SequentialType* this_() { return this; }
protected:
SequentialType(TypeID TID, const Type *ElType)
- : CompositeType(TID), ContainedType(ElType, this_()) {
+ : CompositeType(ElType->getContext(), TID), ContainedType(ElType, this_()) {
ContainedTys = &ContainedType;
NumContainedTys = 1;
}
///
static VectorType *getInteger(const VectorType *VTy) {
unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
- const Type *EltTy = IntegerType::get(EltBits);
+ const Type *EltTy = IntegerType::get(VTy->getContext(), EltBits);
return VectorType::get(EltTy, VTy->getNumElements());
}
///
static VectorType *getExtendedElementVectorType(const VectorType *VTy) {
unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
- const Type *EltTy = IntegerType::get(EltBits * 2);
+ const Type *EltTy = IntegerType::get(VTy->getContext(), EltBits * 2);
return VectorType::get(EltTy, VTy->getNumElements());
}
unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
assert((EltBits & 1) == 0 &&
"Cannot truncate vector element with odd bit-width");
- const Type *EltTy = IntegerType::get(EltBits / 2);
+ const Type *EltTy = IntegerType::get(VTy->getContext(), EltBits / 2);
return VectorType::get(EltTy, VTy->getNumElements());
}
/// OpaqueType - Class to represent abstract types
///
class OpaqueType : public DerivedType {
+ friend class LLVMContextImpl;
OpaqueType(const OpaqueType &); // DO NOT IMPLEMENT
const OpaqueType &operator=(const OpaqueType &); // DO NOT IMPLEMENT
- OpaqueType();
+ OpaqueType(LLVMContext &C);
public:
/// OpaqueType::get - Static factory method for the OpaqueType class...
///
- static OpaqueType *get() {
- return new OpaqueType(); // All opaque types are distinct
- }
+ static OpaqueType *get(LLVMContext &C);
// Implement support for type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const OpaqueType *) { return true; }