///
void dropAllTypeUses();
+ /// unlockedRefineAbstractTypeTo - Internal version of refineAbstractTypeTo
+ /// that performs no locking. Only used for internal recursion.
+ void unlockedRefineAbstractTypeTo(const Type *NewType);
+
public:
//===--------------------------------------------------------------------===//
/// Class to represent integer types. Note that this class is also used to
/// represent the built-in integer types: Int1Ty, Int8Ty, Int16Ty, Int32Ty and
-/// Int64Ty.
+/// Int64Ty.
/// @brief Integer representation type
class IntegerType : public DerivedType {
protected:
///< which has 23 bits. This yields a maximum bit width of 8,388,607 bits.
};
- /// This static method is the primary way of constructing an IntegerType.
+ /// This static method is the primary way of constructing an IntegerType.
/// If an IntegerType with the same NumBits value was previously instantiated,
/// that instance will be returned. Otherwise a new one will be created. Only
/// one instance with a given NumBits value is ever created.
uint64_t getSignBit() const {
return 1ULL << (getBitWidth()-1);
}
-
+
/// For example, this is 0xFF for an 8 bit integer, 0xFFFF for i16, etc.
/// @returns a bit mask with ones set for all the bits of this type.
/// @brief Get a bit mask for this type.
APInt getMask() const;
/// This method determines if the width of this IntegerType is a power-of-2
- /// in terms of 8 bit bytes.
+ /// in terms of 8 bit bytes.
/// @returns true if this is a power-of-2 byte width.
/// @brief Is this a power-of-2 byte-width IntegerType ?
bool isPowerOf2ByteWidth() const;
public:
/// FunctionType::get - This static method is the primary way of constructing
- /// a FunctionType.
+ /// a FunctionType.
///
static FunctionType *get(
const Type *Result, ///< The result type
const std::vector<const Type*> &Params, ///< The types of the parameters
bool isVarArg ///< Whether this is a variable argument length function
);
-
+
+ /// FunctionType::get - Create a FunctionType taking no parameters.
+ ///
+ static FunctionType *get(
+ const Type *Result, ///< The result type
+ bool isVarArg ///< Whether this is a variable argument length function
+ ) {
+ return get(Result, std::vector<const Type *>(), isVarArg);
+ }
+
/// isValidReturnType - Return true if the specified type is valid as a return
/// type.
static bool isValidReturnType(const Type *RetTy);
+ /// isValidArgumentType - Return true if the specified type is valid as an
+ /// argument type.
+ static bool isValidArgumentType(const Type *ArgTy);
+
inline bool isVarArg() const { return isVarArgs; }
inline const Type *getReturnType() const { return ContainedTys[0]; }
/// StructType::get - This static method is the primary way to create a
/// StructType.
///
- static StructType *get(const std::vector<const Type*> &Params,
+ static StructType *get(const std::vector<const Type*> &Params,
bool isPacked=false);
+ /// StructType::get - Create an empty structure type.
+ ///
+ static StructType *get(bool isPacked=false) {
+ return get(std::vector<const Type*>(), isPacked);
+ }
+
/// StructType::get - This static method is a convenience method for
/// creating structure types by specifying the elements as arguments.
/// Note that this method always returns a non-packed struct. To get
/// an empty struct, pass NULL, NULL.
static StructType *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);
+
// Iterator access to the elements
typedef Type::subtype_iterator element_iterator;
element_iterator element_begin() const { return ContainedTys; }
// avoiding warning: 'this' : used in base member initializer list
SequentialType* this_() { return this; }
protected:
- SequentialType(TypeID TID, const Type *ElType)
+ SequentialType(TypeID TID, const Type *ElType)
: CompositeType(TID), ContainedType(ElType, this_()) {
- ContainedTys = &ContainedType;
+ ContainedTys = &ContainedType;
NumContainedTys = 1;
}
///
static ArrayType *get(const Type *ElementType, uint64_t NumElements);
+ /// isValidElementType - Return true if the specified type is valid as a
+ /// element type.
+ static bool isValidElementType(const Type *ElemTy);
+
inline uint64_t getNumElements() const { return NumElements; }
// Implement the AbstractTypeUser interface.
return VectorType::get(EltTy, VTy->getNumElements());
}
+ /// isValidElementType - Return true if the specified type is valid as a
+ /// element type.
+ static bool isValidElementType(const Type *ElemTy);
+
/// @brief Return the number of elements in the Vector type.
inline unsigned getNumElements() const { return NumElements; }
/// @brief Return the number of bits in the Vector type.
- inline unsigned getBitWidth() const {
+ inline unsigned getBitWidth() const {
return NumElements *getElementType()->getPrimitiveSizeInBits();
}
class PointerType : public SequentialType {
friend class TypeMap<PointerValType, PointerType>;
unsigned AddressSpace;
-
+
PointerType(const PointerType &); // Do not implement
const PointerType &operator=(const PointerType &); // Do not implement
explicit PointerType(const Type *ElType, unsigned AddrSpace);
public:
- /// PointerType::get - This constructs a pointer to an object of the specified
+ /// PointerType::get - This constructs a pointer to an object of the specified
/// type in a numbered address space.
static PointerType *get(const Type *ElementType, unsigned AddressSpace);
-
- /// PointerType::getUnqual - This constructs a pointer to an object of the
+
+ /// PointerType::getUnqual - This constructs a pointer to an object of the
/// specified type in the generic address space (address space zero).
- static PointerType *getUnqual(const Type *ElementType) {
+ static PointerType *getUnqual(const Type *ElementType) {
return PointerType::get(ElementType, 0);
}
-
+
+ /// isValidElementType - Return true if the specified type is valid as a
+ /// element type.
+ static bool isValidElementType(const Type *ElemTy);
+
/// @brief Return the address space of the Pointer type.
inline unsigned getAddressSpace() const { return AddressSpace; }
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