class FunctionType : public Type {
FunctionType(const FunctionType &); // Do not implement
const FunctionType &operator=(const FunctionType &); // Do not implement
- FunctionType(const Type *Result, ArrayRef<Type*> Params, bool IsVarArgs);
+ FunctionType(Type *Result, ArrayRef<Type*> Params, bool IsVarArgs);
public:
/// FunctionType::get - This static method is the primary way of constructing
/// a FunctionType.
///
- static FunctionType *get(const Type *Result,
- ArrayRef<const Type*> Params, bool isVarArg);
- static FunctionType *get(const Type *Result,
+ static FunctionType *get(Type *Result,
ArrayRef<Type*> Params, bool isVarArg);
/// FunctionType::get - Create a FunctionType taking no parameters.
///
- static FunctionType *get(const Type *Result, bool isVarArg);
+ static FunctionType *get(Type *Result, bool isVarArg);
/// isValidReturnType - Return true if the specified type is valid as a return
/// type.
- static bool isValidReturnType(const Type *RetTy);
+ static bool isValidReturnType(Type *RetTy);
/// isValidArgumentType - Return true if the specified type is valid as an
/// argument type.
- static bool isValidArgumentType(const Type *ArgTy);
+ static bool isValidArgumentType(Type *ArgTy);
bool isVarArg() const { return getSubclassData(); }
Type *getReturnType() const { return ContainedTys[0]; }
/// getTypeAtIndex - Given an index value into the type, return the type of
/// the element.
///
- Type *getTypeAtIndex(const Value *V) const;
- Type *getTypeAtIndex(unsigned Idx) const;
+ Type *getTypeAtIndex(const Value *V);
+ Type *getTypeAtIndex(unsigned Idx);
bool indexValid(const Value *V) const;
bool indexValid(unsigned Idx) const;
};
-/// StructType - Class to represent struct types, both normal and packed.
-/// Besides being optionally packed, structs can be either "anonymous" or may
-/// have an identity. Anonymous structs are uniqued by structural equivalence,
-/// but types are each unique when created, and optionally have a name.
+/// StructType - Class to represent struct types. There are two different kinds
+/// of struct types: Literal structs and Identified structs.
+///
+/// Literal struct types (e.g. { i32, i32 }) are uniqued structurally, and must
+/// always have a body when created. You can get one of these by using one of
+/// the StructType::get() forms.
+///
+/// Identified structs (e.g. %foo or %42) may optionally have a name and are not
+/// uniqued. The names for identified structs are managed at the LLVMContext
+/// level, so there can only be a single identified struct with a given name in
+/// a particular LLVMContext. Identified structs may also optionally be opaque
+/// (have no body specified). You get one of these by using one of the
+/// StructType::create() forms.
+///
+/// Independent of what kind of struct you have, the body of a struct type are
+/// laid out in memory consequtively with the elements directly one after the
+/// other (if the struct is packed) or (if not packed) with padding between the
+/// elements as defined by TargetData (which is required to match what the code
+/// generator for a target expects).
///
class StructType : public CompositeType {
StructType(const StructType &); // Do not implement
// This is the contents of the SubClassData field.
SCDB_HasBody = 1,
SCDB_Packed = 2,
- SCDB_IsAnonymous = 4
+ SCDB_IsLiteral = 4
};
/// SymbolTableEntry - For a named struct that actually has a name, this is a
/// pointer to the symbol table entry (maintained by LLVMContext) for the
- /// struct. This is null if the type is an anonymous struct or if it is
+ /// struct. This is null if the type is an literal struct or if it is
+ /// a identified type that has an empty name.
///
void *SymbolTableEntry;
public:
- /// StructType::createNamed - This creates a named struct with no body
- /// specified. If the name is empty, it creates an unnamed struct, which has
- /// a unique identity but no actual name.
- static StructType *createNamed(LLVMContext &Context, StringRef Name);
+ ~StructType() {
+ delete [] ContainedTys; // Delete the body.
+ }
+
+ /// StructType::create - This creates an identified struct.
+ static StructType *create(LLVMContext &Context, StringRef Name);
+ static StructType *create(LLVMContext &Context);
- static StructType *createNamed(StringRef Name, ArrayRef<Type*> Elements,
- bool isPacked = false);
- static StructType *createNamed(LLVMContext &Context, StringRef Name,
- ArrayRef<Type*> Elements,
- bool isPacked = false);
- static StructType *createNamed(StringRef Name, Type *elt1, ...) END_WITH_NULL;
+ static StructType *create(ArrayRef<Type*> Elements,
+ StringRef Name,
+ bool isPacked = false);
+ static StructType *create(ArrayRef<Type*> Elements);
+ static StructType *create(LLVMContext &Context,
+ ArrayRef<Type*> Elements,
+ StringRef Name,
+ bool isPacked = false);
+ static StructType *create(LLVMContext &Context, ArrayRef<Type*> Elements);
+ static StructType *create(StringRef Name, Type *elt1, ...) END_WITH_NULL;
/// StructType::get - This static method is the primary way to create a
- /// StructType.
- ///
- /// FIXME: Remove the 'const Type*' version of this when types are pervasively
- /// de-constified.
- static StructType *get(LLVMContext &Context, ArrayRef<const Type*> Elements,
- bool isPacked = false);
+ /// literal StructType.
static StructType *get(LLVMContext &Context, ArrayRef<Type*> Elements,
bool isPacked = false);
/// structure types by specifying the elements as arguments. Note that this
/// method always returns a non-packed struct, and requires at least one
/// element type.
- static StructType *get(const Type *elt1, ...) END_WITH_NULL;
+ static StructType *get(Type *elt1, ...) END_WITH_NULL;
bool isPacked() const { return (getSubclassData() & SCDB_Packed) != 0; }
- /// isAnonymous - Return true if this type is uniqued by structural
- /// equivalence, false if it has an identity.
- bool isAnonymous() const {return (getSubclassData() & SCDB_IsAnonymous) != 0;}
+ /// isLiteral - Return true if this type is uniqued by structural
+ /// equivalence, false if it is a struct definition.
+ bool isLiteral() const { return (getSubclassData() & SCDB_IsLiteral) != 0; }
/// isOpaque - Return true if this is a type with an identity that has no body
/// specified yet. These prints as 'opaque' in .ll files.
/// getName - Return the name for this struct type if it has an identity.
/// This may return an empty string for an unnamed struct type. Do not call
- /// this on an anonymous type.
+ /// this on an literal type.
StringRef getName() const;
/// setName - Change the name of this type to the specified name, or to a name
- /// with a suffix if there is a collision. Do not call this on an anonymous
+ /// with a suffix if there is a collision. Do not call this on an literal
/// type.
void setName(StringRef Name);
- /// setBody - Specify a body for an opaque type.
+ /// setBody - Specify a body for an opaque identified type.
void setBody(ArrayRef<Type*> Elements, bool isPacked = false);
void setBody(Type *elt1, ...) END_WITH_NULL;
/// isValidElementType - Return true if the specified type is valid as a
/// element type.
- static bool isValidElementType(const Type *ElemTy);
+ static bool isValidElementType(Type *ElemTy);
// Iterator access to the elements.
/// isLayoutIdentical - Return true if this is layout identical to the
/// specified struct.
- bool isLayoutIdentical(const StructType *Other) const;
+ bool isLayoutIdentical(StructType *Other) const;
// Random access to the elements
unsigned getNumElements() const { return NumContainedTys; }
/// ArrayType::get - This static method is the primary way to construct an
/// ArrayType
///
- static ArrayType *get(const Type *ElementType, uint64_t NumElements);
+ static ArrayType *get(Type *ElementType, uint64_t NumElements);
/// isValidElementType - Return true if the specified type is valid as a
/// element type.
- static bool isValidElementType(const Type *ElemTy);
+ static bool isValidElementType(Type *ElemTy);
uint64_t getNumElements() const { return NumElements; }
/// VectorType::get - This static method is the primary way to construct an
/// VectorType.
///
- static VectorType *get(const Type *ElementType, unsigned NumElements);
+ static VectorType *get(Type *ElementType, unsigned NumElements);
/// VectorType::getInteger - This static method gets a VectorType with the
/// same number of elements as the input type, and the element type is an
/// integer type of the same width as the input element type.
///
- static VectorType *getInteger(const VectorType *VTy) {
+ static VectorType *getInteger(VectorType *VTy) {
unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
Type *EltTy = IntegerType::get(VTy->getContext(), EltBits);
return VectorType::get(EltTy, VTy->getNumElements());
/// getInteger except that the element types are twice as wide as the
/// elements in the input type.
///
- static VectorType *getExtendedElementVectorType(const VectorType *VTy) {
+ static VectorType *getExtendedElementVectorType(VectorType *VTy) {
unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
Type *EltTy = IntegerType::get(VTy->getContext(), EltBits * 2);
return VectorType::get(EltTy, VTy->getNumElements());
/// getInteger except that the element types are half as wide as the
/// elements in the input type.
///
- static VectorType *getTruncatedElementVectorType(const VectorType *VTy) {
+ static VectorType *getTruncatedElementVectorType(VectorType *VTy) {
unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
assert((EltBits & 1) == 0 &&
"Cannot truncate vector element with odd bit-width");
/// isValidElementType - Return true if the specified type is valid as a
/// element type.
- static bool isValidElementType(const Type *ElemTy);
+ static bool isValidElementType(Type *ElemTy);
/// @brief Return the number of elements in the Vector type.
unsigned getNumElements() const { return NumElements; }
public:
/// 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);
+ static PointerType *get(Type *ElementType, unsigned AddressSpace);
/// 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(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);
+ static bool isValidElementType(Type *ElemTy);
/// @brief Return the address space of the Pointer type.
inline unsigned getAddressSpace() const { return getSubclassData(); }
projects / oota-llvm.git / blobdiff