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-rw-r--r--include/llvm/DerivedTypes.h192
1 files changed, 82 insertions, 110 deletions
diff --git a/include/llvm/DerivedTypes.h b/include/llvm/DerivedTypes.h
index fe9f5f8099d..1cefcb298d4 100644
--- a/include/llvm/DerivedTypes.h
+++ b/include/llvm/DerivedTypes.h
@@ -24,51 +24,16 @@
namespace llvm {
class Value;
-template<class ValType, class TypeClass> class TypeMap;
-class FunctionValType;
-class ArrayValType;
-class StructValType;
-class PointerValType;
-class VectorValType;
-class IntegerValType;
class APInt;
class LLVMContext;
template<typename T> class ArrayRef;
+class StringRef;
class DerivedType : public Type {
- friend class Type;
-
protected:
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
- /// concrete.
- ///
- void notifyUsesThatTypeBecameConcrete();
-
- /// dropAllTypeUses - When this (abstract) type is resolved to be equal to
- /// another (more concrete) type, we must eliminate all references to other
- /// types, to avoid some circular reference problems.
- ///
- void dropAllTypeUses();
-
public:
- //===--------------------------------------------------------------------===//
- // Abstract Type handling methods - These types have special lifetimes, which
- // are managed by (add|remove)AbstractTypeUser. See comments in
- // AbstractTypeUser.h for more information.
-
- /// refineAbstractTypeTo - This function is used to when it is discovered that
- /// the 'this' abstract type is actually equivalent to the NewType specified.
- /// This causes all users of 'this' to switch to reference the more concrete
- /// type NewType and for 'this' to be deleted.
- ///
- void refineAbstractTypeTo(const Type *NewType);
-
- void dump() const { Type::dump(); }
-
// Methods for support type inquiry through isa, cast, and dyn_cast.
static inline bool classof(const DerivedType *) { return true; }
static inline bool classof(const Type *T) {
@@ -88,7 +53,6 @@ protected:
DerivedType(C, IntegerTyID) {
setSubclassData(NumBits);
}
- friend class TypeMap<IntegerValType, IntegerType>;
public:
/// This enum is just used to hold constants we need for IntegerType.
enum {
@@ -103,7 +67,7 @@ public:
/// 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(LLVMContext &C, unsigned NumBits);
+ static IntegerType *get(LLVMContext &C, unsigned NumBits);
/// @brief Get the number of bits in this IntegerType
unsigned getBitWidth() const { return getSubclassData(); }
@@ -143,11 +107,9 @@ public:
/// FunctionType - Class to represent function types
///
class FunctionType : public DerivedType {
- friend class TypeMap<FunctionValType, FunctionType>;
FunctionType(const FunctionType &); // Do not implement
const FunctionType &operator=(const FunctionType &); // Do not implement
- FunctionType(const Type *Result, ArrayRef<const Type*> Params,
- bool IsVarArgs);
+ FunctionType(const Type *Result, ArrayRef<Type*> Params, bool IsVarArgs);
public:
/// FunctionType::get - This static method is the primary way of constructing
@@ -155,6 +117,8 @@ public:
///
static FunctionType *get(const Type *Result,
ArrayRef<const Type*> Params, bool isVarArg);
+ static FunctionType *get(const Type *Result,
+ ArrayRef<Type*> Params, bool isVarArg);
/// FunctionType::get - Create a FunctionType taking no parameters.
///
@@ -169,24 +133,20 @@ public:
static bool isValidArgumentType(const Type *ArgTy);
bool isVarArg() const { return getSubclassData(); }
- const Type *getReturnType() const { return ContainedTys[0]; }
+ Type *getReturnType() const { return ContainedTys[0]; }
typedef Type::subtype_iterator param_iterator;
param_iterator param_begin() const { return ContainedTys + 1; }
param_iterator param_end() const { return &ContainedTys[NumContainedTys]; }
// Parameter type accessors.
- const Type *getParamType(unsigned i) const { return ContainedTys[i+1]; }
+ Type *getParamType(unsigned i) const { return ContainedTys[i+1]; }
/// getNumParams - Return the number of fixed parameters this function type
/// requires. This does not consider varargs.
///
unsigned getNumParams() const { return NumContainedTys - 1; }
- // 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 FunctionType *) { return true; }
static inline bool classof(const Type *T) {
@@ -205,8 +165,8 @@ public:
/// getTypeAtIndex - Given an index value into the type, return the type of
/// the element.
///
- const Type *getTypeAtIndex(const Value *V) const;
- const Type *getTypeAtIndex(unsigned Idx) const;
+ Type *getTypeAtIndex(const Value *V) const;
+ Type *getTypeAtIndex(unsigned Idx) const;
bool indexValid(const Value *V) const;
bool indexValid(unsigned Idx) const;
@@ -222,18 +182,49 @@ public:
/// 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.
///
class StructType : public CompositeType {
- friend class TypeMap<StructValType, StructType>;
StructType(const StructType &); // Do not implement
const StructType &operator=(const StructType &); // Do not implement
- StructType(LLVMContext &C, ArrayRef<const Type*> Types, bool isPacked);
+ 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
+ };
+
+ /// 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
+ ///
+ 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);
+
+ 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;
+
/// 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);
+ static StructType *get(LLVMContext &Context, ArrayRef<Type*> Elements,
+ bool isPacked = false);
/// StructType::get - Create an empty structure type.
///
@@ -245,11 +236,37 @@ public:
/// element type.
static StructType *get(const 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;}
+
+ /// 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; }
+
+ /// 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.
+ 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
+ /// type.
+ void setName(StringRef Name);
+
+ /// setBody - Specify a body for an opaque 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);
-
- bool isPacked() const { return getSubclassData() != 0 ? true : false; }
+
// Iterator access to the elements.
typedef Type::subtype_iterator element_iterator;
@@ -258,22 +275,15 @@ public:
/// isLayoutIdentical - Return true if this is layout identical to the
/// specified struct.
- bool isLayoutIdentical(const StructType *Other) const {
- return this == Other;
- }
-
+ bool isLayoutIdentical(const StructType *Other) const;
// Random access to the elements
unsigned getNumElements() const { return NumContainedTys; }
- const Type *getElementType(unsigned N) const {
+ Type *getElementType(unsigned N) const {
assert(N < NumContainedTys && "Element number out of range!");
return ContainedTys[N];
}
- // 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 StructType *) { return true; }
static inline bool classof(const Type *T) {
@@ -290,21 +300,19 @@ public:
/// components out in memory identically.
///
class SequentialType : public CompositeType {
- PATypeHandle ContainedType; ///< Storage for the single contained type.
+ Type *ContainedType; ///< Storage for the single contained type.
SequentialType(const SequentialType &); // Do not implement!
const SequentialType &operator=(const SequentialType &); // Do not implement!
- // avoiding warning: 'this' : used in base member initializer list
- SequentialType *this_() { return this; }
protected:
- SequentialType(TypeID TID, const Type *ElType)
- : CompositeType(ElType->getContext(), TID), ContainedType(ElType, this_()) {
+ SequentialType(TypeID TID, Type *ElType)
+ : CompositeType(ElType->getContext(), TID), ContainedType(ElType) {
ContainedTys = &ContainedType;
NumContainedTys = 1;
}
public:
- const Type *getElementType() const { return ContainedTys[0]; }
+ 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; }
@@ -319,12 +327,11 @@ public:
/// ArrayType - Class to represent array types.
///
class ArrayType : public SequentialType {
- friend class TypeMap<ArrayValType, ArrayType>;
uint64_t NumElements;
ArrayType(const ArrayType &); // Do not implement
const ArrayType &operator=(const ArrayType &); // Do not implement
- ArrayType(const Type *ElType, uint64_t NumEl);
+ ArrayType(Type *ElType, uint64_t NumEl);
public:
/// ArrayType::get - This static method is the primary way to construct an
/// ArrayType
@@ -337,10 +344,6 @@ public:
uint64_t getNumElements() const { return NumElements; }
- // 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 ArrayType *) { return true; }
static inline bool classof(const Type *T) {
@@ -351,12 +354,11 @@ public:
/// VectorType - Class to represent vector types.
///
class VectorType : public SequentialType {
- friend class TypeMap<VectorValType, VectorType>;
unsigned NumElements;
VectorType(const VectorType &); // Do not implement
const VectorType &operator=(const VectorType &); // Do not implement
- VectorType(const Type *ElType, unsigned NumEl);
+ VectorType(Type *ElType, unsigned NumEl);
public:
/// VectorType::get - This static method is the primary way to construct an
/// VectorType.
@@ -369,7 +371,7 @@ public:
///
static VectorType *getInteger(const VectorType *VTy) {
unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
- const Type *EltTy = IntegerType::get(VTy->getContext(), EltBits);
+ Type *EltTy = IntegerType::get(VTy->getContext(), EltBits);
return VectorType::get(EltTy, VTy->getNumElements());
}
@@ -379,7 +381,7 @@ public:
///
static VectorType *getExtendedElementVectorType(const VectorType *VTy) {
unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
- const Type *EltTy = IntegerType::get(VTy->getContext(), EltBits * 2);
+ Type *EltTy = IntegerType::get(VTy->getContext(), EltBits * 2);
return VectorType::get(EltTy, VTy->getNumElements());
}
@@ -391,7 +393,7 @@ public:
unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
assert((EltBits & 1) == 0 &&
"Cannot truncate vector element with odd bit-width");
- const Type *EltTy = IntegerType::get(VTy->getContext(), EltBits / 2);
+ Type *EltTy = IntegerType::get(VTy->getContext(), EltBits / 2);
return VectorType::get(EltTy, VTy->getNumElements());
}
@@ -407,10 +409,6 @@ public:
return NumElements * getElementType()->getPrimitiveSizeInBits();
}
- // 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 VectorType *) { return true; }
static inline bool classof(const Type *T) {
@@ -422,11 +420,9 @@ public:
/// PointerType - Class to represent pointers.
///
class PointerType : public SequentialType {
- friend class TypeMap<PointerValType, PointerType>;
-
PointerType(const PointerType &); // Do not implement
const PointerType &operator=(const PointerType &); // Do not implement
- explicit PointerType(const Type *ElType, unsigned AddrSpace);
+ explicit PointerType(Type *ElType, unsigned AddrSpace);
public:
/// PointerType::get - This constructs a pointer to an object of the specified
/// type in a numbered address space.
@@ -445,10 +441,6 @@ public:
/// @brief Return the address space of the Pointer type.
inline unsigned getAddressSpace() const { return getSubclassData(); }
- // Implement the AbstractTypeUser interface.
- virtual void refineAbstractType(const DerivedType *OldTy, const Type *NewTy);
- virtual void typeBecameConcrete(const DerivedType *AbsTy);
-
// 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) {
@@ -456,26 +448,6 @@ public:
}
};
-
-/// OpaqueType - Class to represent opaque types.
-///
-class OpaqueType : public DerivedType {
- friend class LLVMContextImpl;
- OpaqueType(const OpaqueType &); // DO NOT IMPLEMENT
- const OpaqueType &operator=(const OpaqueType &); // DO NOT IMPLEMENT
- OpaqueType(LLVMContext &C);
-public:
- /// OpaqueType::get - Static factory method for the OpaqueType class.
- ///
- static OpaqueType *get(LLVMContext &C);
-
- // Implement support for type inquiry through isa, cast, and dyn_cast.
- static inline bool classof(const OpaqueType *) { return true; }
- static inline bool classof(const Type *T) {
- return T->getTypeID() == OpaqueTyID;
- }
-};
-
} // End llvm namespace
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-26 07:31:44 +0000