#ifndef LLVM_DERIVED_TYPES_H
#define LLVM_DERIVED_TYPES_H
-#include "llvm/Type.h"
+#include "llvm/Support/Compiler.h"
#include "llvm/Support/DataTypes.h"
+#include "llvm/Type.h"
namespace llvm {
bool isPowerOf2ByteWidth() const;
// Methods for support type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const IntegerType *) { return true; }
static inline bool classof(const Type *T) {
return T->getTypeID() == IntegerTyID;
}
/// FunctionType - Class to represent function types
///
class FunctionType : public Type {
- FunctionType(const FunctionType &); // Do not implement
- const FunctionType &operator=(const FunctionType &); // Do not implement
+ FunctionType(const FunctionType &) LLVM_DELETED_FUNCTION;
+ const FunctionType &operator=(const FunctionType &) LLVM_DELETED_FUNCTION;
FunctionType(Type *Result, ArrayRef<Type*> Params, bool IsVarArgs);
public:
unsigned getNumParams() const { return NumContainedTys - 1; }
// Methods for support type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const FunctionType *) { return true; }
static inline bool classof(const Type *T) {
return T->getTypeID() == FunctionTyID;
}
bool indexValid(unsigned Idx) const;
// Methods for support type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const CompositeType *) { return true; }
static inline bool classof(const Type *T) {
return T->getTypeID() == ArrayTyID ||
T->getTypeID() == StructTyID ||
};
-/// 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 DataLayout (which is required to match what the code
+/// generator for a target expects).
///
class StructType : public CompositeType {
- StructType(const StructType &); // Do not implement
- const StructType &operator=(const StructType &); // Do not implement
+ StructType(const StructType &) LLVM_DELETED_FUNCTION;
+ const StructType &operator=(const StructType &) LLVM_DELETED_FUNCTION;
StructType(LLVMContext &C)
: CompositeType(C, StructTyID), SymbolTableEntry(0) {}
enum {
// This is the contents of the SubClassData field.
SCDB_HasBody = 1,
SCDB_Packed = 2,
- SCDB_IsAnonymous = 4
+ SCDB_IsLiteral = 4,
+ SCDB_IsSized = 8
};
-
+
/// 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
- /// a named type that has an empty name.
+ /// 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:
delete [] ContainedTys; // Delete the body.
}
- /// 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::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.
+ /// literal StructType.
static StructType *get(LLVMContext &Context, ArrayRef<Type*> Elements,
bool isPacked = false);
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.
bool isOpaque() const { return (getSubclassData() & SCDB_HasBody) == 0; }
+
+ /// isSized - Return true if this is a sized type.
+ bool isSized() const;
/// hasName - Return true if this is a named struct that has a non-empty name.
bool hasName() const { return SymbolTableEntry != 0; }
/// 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;
}
// Methods for support type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const StructType *) { return true; }
static inline bool classof(const Type *T) {
return T->getTypeID() == StructTyID;
}
///
class SequentialType : public CompositeType {
Type *ContainedType; ///< Storage for the single contained type.
- SequentialType(const SequentialType &); // Do not implement!
- const SequentialType &operator=(const SequentialType &); // Do not implement!
+ SequentialType(const SequentialType &) LLVM_DELETED_FUNCTION;
+ const SequentialType &operator=(const SequentialType &) LLVM_DELETED_FUNCTION;
protected:
SequentialType(TypeID TID, Type *ElType)
Type *getElementType() const { return ContainedTys[0]; }
// Methods for support type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const SequentialType *) { return true; }
static inline bool classof(const Type *T) {
return T->getTypeID() == ArrayTyID ||
T->getTypeID() == PointerTyID ||
class ArrayType : public SequentialType {
uint64_t NumElements;
- ArrayType(const ArrayType &); // Do not implement
- const ArrayType &operator=(const ArrayType &); // Do not implement
+ ArrayType(const ArrayType &) LLVM_DELETED_FUNCTION;
+ const ArrayType &operator=(const ArrayType &) LLVM_DELETED_FUNCTION;
ArrayType(Type *ElType, uint64_t NumEl);
public:
/// ArrayType::get - This static method is the primary way to construct an
uint64_t getNumElements() const { return NumElements; }
// Methods for support type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const ArrayType *) { return true; }
static inline bool classof(const Type *T) {
return T->getTypeID() == ArrayTyID;
}
class VectorType : public SequentialType {
unsigned NumElements;
- VectorType(const VectorType &); // Do not implement
- const VectorType &operator=(const VectorType &); // Do not implement
+ VectorType(const VectorType &) LLVM_DELETED_FUNCTION;
+ const VectorType &operator=(const VectorType &) LLVM_DELETED_FUNCTION;
VectorType(Type *ElType, unsigned NumEl);
public:
/// VectorType::get - This static method is the primary way to construct an
///
static VectorType *getInteger(VectorType *VTy) {
unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
+ assert(EltBits && "Element size must be of a non-zero size");
Type *EltTy = IntegerType::get(VTy->getContext(), EltBits);
return VectorType::get(EltTy, VTy->getNumElements());
}
unsigned getNumElements() const { return NumElements; }
/// @brief Return the number of bits in the Vector type.
+ /// Returns zero when the vector is a vector of pointers.
unsigned getBitWidth() const {
return NumElements * getElementType()->getPrimitiveSizeInBits();
}
// Methods for support type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const VectorType *) { return true; }
static inline bool classof(const Type *T) {
return T->getTypeID() == VectorTyID;
}
/// PointerType - Class to represent pointers.
///
class PointerType : public SequentialType {
- PointerType(const PointerType &); // Do not implement
- const PointerType &operator=(const PointerType &); // Do not implement
+ PointerType(const PointerType &) LLVM_DELETED_FUNCTION;
+ const PointerType &operator=(const PointerType &) LLVM_DELETED_FUNCTION;
explicit PointerType(Type *ElType, unsigned AddrSpace);
public:
/// PointerType::get - This constructs a pointer to an object of the specified
inline unsigned getAddressSpace() const { return getSubclassData(); }
// Implement support type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const PointerType *) { return true; }
static inline bool classof(const Type *T) {
return T->getTypeID() == PointerTyID;
}
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