//
//===----------------------------------------------------------------------===//
-
#ifndef LLVM_TYPE_H
#define LLVM_TYPE_H
#include "llvm/AbstractTypeUser.h"
#include "llvm/Support/Casting.h"
-#include "llvm/Support/DataTypes.h"
-#include "llvm/System/Atomic.h"
+#include "llvm/System/DataTypes.h"
#include "llvm/ADT/GraphTraits.h"
-#include "llvm/ADT/iterator.h"
#include <string>
#include <vector>
class TypeMapBase;
class raw_ostream;
class Module;
+class LLVMContext;
/// This file contains the declaration of the Type class. For more "Type" type
/// stuff, look in DerivedTypes.h.
/// value, you can cast to a "DerivedType" subclass (see DerivedTypes.h)
/// Note: If you add an element to this, you need to add an element to the
/// Type::getPrimitiveType function, or else things will break!
+ /// Also update LLVMTypeKind and LLVMGetTypeKind () in the C binding.
///
enum TypeID {
// PrimitiveTypes .. make sure LastPrimitiveTyID stays up to date
IntegerTyID, ///< 8: Arbitrary bit width integers
FunctionTyID, ///< 9: Functions
StructTyID, ///< 10: Structures
- ArrayTyID, ///< 11: Arrays
- PointerTyID, ///< 12: Pointers
- OpaqueTyID, ///< 13: Opaque: type with unknown structure
- VectorTyID, ///< 14: SIMD 'packed' format, or other vector type
+ UnionTyID, ///< 11: Unions
+ ArrayTyID, ///< 12: Arrays
+ PointerTyID, ///< 13: Pointers
+ OpaqueTyID, ///< 14: Opaque: type with unknown structure
+ VectorTyID, ///< 15: SIMD 'packed' format, or other vector type
NumTypeIDs, // Must remain as last defined ID
- LastPrimitiveTyID = LabelTyID,
+ LastPrimitiveTyID = MetadataTyID,
FirstDerivedTyID = IntegerTyID
};
/// has no AbstractTypeUsers, the type is deleted. This is only sensical for
/// derived types.
///
- mutable uint32_t RefCount;
+ mutable unsigned RefCount;
+
+ /// Context - This refers to the LLVMContext in which this type was uniqued.
+ LLVMContext &Context;
+ friend class LLVMContextImpl;
const Type *getForwardedTypeInternal() const;
void destroy() const; // const is a lie, this does "delete this"!
protected:
- explicit Type(TypeID id) : ID(id), Abstract(false), SubclassData(0),
- RefCount(0), ForwardType(0), NumContainedTys(0),
+ explicit Type(LLVMContext &C, TypeID id) :
+ ID(id), Abstract(false), SubclassData(0),
+ RefCount(0), Context(C),
+ ForwardType(0), NumContainedTys(0),
ContainedTys(0) {}
virtual ~Type() {
assert(AbstractTypeUsers.empty() && "Abstract types remain");
public:
void print(raw_ostream &O) const;
- void print(std::ostream &O) const;
/// @brief Debugging support: print to stderr
void dump() const;
/// module).
void dump(const Module *Context) const;
+ /// getContext - Fetch the LLVMContext in which this type was uniqued.
+ LLVMContext &getContext() const { return Context; }
+
//===--------------------------------------------------------------------===//
// Property accessors for dealing with types... Some of these virtual methods
// are defined in private classes defined in Type.cpp for primitive types.
//
+ /// getDescription - Return the string representation of the type.
+ std::string getDescription() const;
+
/// getTypeID - Return the type id for the type. This will return one
/// of the TypeID enum elements defined above.
///
inline TypeID getTypeID() const { return ID; }
- /// getDescription - Return the string representation of the type.
- std::string getDescription() const;
+ /// isVoidTy - Return true if this is 'void'.
+ bool isVoidTy() const { return ID == VoidTyID; }
+
+ /// isFloatTy - Return true if this is 'float', a 32-bit IEEE fp type.
+ bool isFloatTy() const { return ID == FloatTyID; }
+
+ /// isDoubleTy - Return true if this is 'double', a 64-bit IEEE fp type.
+ bool isDoubleTy() const { return ID == DoubleTyID; }
+
+ /// isX86_FP80Ty - Return true if this is x86 long double.
+ bool isX86_FP80Ty() const { return ID == X86_FP80TyID; }
- /// isInteger - True if this is an instance of IntegerType.
+ /// isFP128Ty - Return true if this is 'fp128'.
+ bool isFP128Ty() const { return ID == FP128TyID; }
+
+ /// isPPC_FP128Ty - Return true if this is powerpc long double.
+ bool isPPC_FP128Ty() const { return ID == PPC_FP128TyID; }
+
+ /// isFloatingPointTy - Return true if this is one of the five floating point
+ /// types
+ bool isFloatingPointTy() const { return ID == FloatTyID || ID == DoubleTyID ||
+ ID == X86_FP80TyID || ID == FP128TyID || ID == PPC_FP128TyID; }
+
+ /// isFPOrFPVectorTy - Return true if this is a FP type or a vector of FP.
///
- bool isInteger() const { return ID == IntegerTyID; }
+ bool isFPOrFPVectorTy() const;
+
+ /// isLabelTy - Return true if this is 'label'.
+ bool isLabelTy() const { return ID == LabelTyID; }
+
+ /// isMetadataTy - Return true if this is 'metadata'.
+ bool isMetadataTy() const { return ID == MetadataTyID; }
- /// isIntOrIntVector - Return true if this is an integer type or a vector of
+ /// isIntegerTy - True if this is an instance of IntegerType.
+ ///
+ bool isIntegerTy() const { return ID == IntegerTyID; }
+
+ /// isIntegerTy - Return true if this is an IntegerType of the given width.
+ bool isIntegerTy(unsigned Bitwidth) const;
+
+ /// isIntOrIntVectorTy - Return true if this is an integer type or a vector of
/// integer types.
///
- bool isIntOrIntVector() const;
+ bool isIntOrIntVectorTy() const;
- /// isFloatingPoint - Return true if this is one of the two floating point
- /// types
- bool isFloatingPoint() const { return ID == FloatTyID || ID == DoubleTyID ||
- ID == X86_FP80TyID || ID == FP128TyID || ID == PPC_FP128TyID; }
+ /// isFunctionTy - True if this is an instance of FunctionType.
+ ///
+ bool isFunctionTy() const { return ID == FunctionTyID; }
- /// isFPOrFPVector - Return true if this is a FP type or a vector of FP types.
+ /// isStructTy - True if this is an instance of StructType.
///
- bool isFPOrFPVector() const;
-
+ bool isStructTy() const { return ID == StructTyID; }
+
+ /// isUnionTy - True if this is an instance of UnionType.
+ ///
+ bool isUnionTy() const { return ID == UnionTyID; }
+
+ /// isArrayTy - True if this is an instance of ArrayType.
+ ///
+ bool isArrayTy() const { return ID == ArrayTyID; }
+
+ /// isPointerTy - True if this is an instance of PointerType.
+ ///
+ bool isPointerTy() const { return ID == PointerTyID; }
+
+ /// isOpaqueTy - True if this is an instance of OpaqueType.
+ ///
+ bool isOpaqueTy() const { return ID == OpaqueTyID; }
+
+ /// isVectorTy - True if this is an instance of VectorType.
+ ///
+ bool isVectorTy() const { return ID == VectorTyID; }
+
/// isAbstract - True if the type is either an Opaque type, or is a derived
/// type that includes an opaque type somewhere in it.
///
/// does not include vector types.
///
inline bool isAggregateType() const {
- return ID == StructTyID || ID == ArrayTyID;
+ return ID == StructTyID || ID == ArrayTyID || ID == UnionTyID;
}
/// isSized - Return true if it makes sense to take the size of this type. To
///
bool isSized() const {
// If it's a primitive, it is always sized.
- if (ID == IntegerTyID || isFloatingPoint() || ID == PointerTyID)
+ if (ID == IntegerTyID || isFloatingPointTy() || ID == PointerTyID)
return true;
// If it is not something that can have a size (e.g. a function or label),
// it doesn't have a size.
- if (ID != StructTyID && ID != ArrayTyID && ID != VectorTyID)
+ if (ID != StructTyID && ID != ArrayTyID && ID != VectorTyID &&
+ ID != UnionTyID)
return false;
// If it is something that can have a size and it's concrete, it definitely
// has a size, otherwise we have to try harder to decide.
/// This will return zero if the type does not have a size or is not a
/// primitive type.
///
+ /// Note that this may not reflect the size of memory allocated for an
+ /// instance of the type or the number of bytes that are written when an
+ /// instance of the type is stored to memory. The TargetData class provides
+ /// additional query functions to provide this information.
+ ///
unsigned getPrimitiveSizeInBits() const;
/// getScalarSizeInBits - If this is a vector type, return the
/// getVAArgsPromotedType - Return the type an argument of this type
/// will be promoted to if passed through a variable argument
/// function.
- const Type *getVAArgsPromotedType() const;
+ const Type *getVAArgsPromotedType(LLVMContext &C) const;
/// getScalarType - If this is a vector type, return the element type,
/// otherwise return this.
//
/// getPrimitiveType - Return a type based on an identifier.
- static const Type *getPrimitiveType(TypeID IDNumber);
+ static const Type *getPrimitiveType(LLVMContext &C, TypeID IDNumber);
//===--------------------------------------------------------------------===//
// These are the builtin types that are always available...
//
- static const Type *VoidTy, *LabelTy, *FloatTy, *DoubleTy, *MetadataTy;
- static const Type *X86_FP80Ty, *FP128Ty, *PPC_FP128Ty;
- static const IntegerType *Int1Ty, *Int8Ty, *Int16Ty, *Int32Ty, *Int64Ty;
+ static const Type *getVoidTy(LLVMContext &C);
+ static const Type *getLabelTy(LLVMContext &C);
+ static const Type *getFloatTy(LLVMContext &C);
+ static const Type *getDoubleTy(LLVMContext &C);
+ static const Type *getMetadataTy(LLVMContext &C);
+ static const Type *getX86_FP80Ty(LLVMContext &C);
+ static const Type *getFP128Ty(LLVMContext &C);
+ static const Type *getPPC_FP128Ty(LLVMContext &C);
+ static const IntegerType *getIntNTy(LLVMContext &C, unsigned N);
+ static const IntegerType *getInt1Ty(LLVMContext &C);
+ static const IntegerType *getInt8Ty(LLVMContext &C);
+ static const IntegerType *getInt16Ty(LLVMContext &C);
+ static const IntegerType *getInt32Ty(LLVMContext &C);
+ static const IntegerType *getInt64Ty(LLVMContext &C);
+
+ //===--------------------------------------------------------------------===//
+ // Convenience methods for getting pointer types with one of the above builtin
+ // types as pointee.
+ //
+ static const PointerType *getFloatPtrTy(LLVMContext &C, unsigned AS = 0);
+ static const PointerType *getDoublePtrTy(LLVMContext &C, unsigned AS = 0);
+ static const PointerType *getX86_FP80PtrTy(LLVMContext &C, unsigned AS = 0);
+ static const PointerType *getFP128PtrTy(LLVMContext &C, unsigned AS = 0);
+ static const PointerType *getPPC_FP128PtrTy(LLVMContext &C, unsigned AS = 0);
+ static const PointerType *getIntNPtrTy(LLVMContext &C, unsigned N,
+ unsigned AS = 0);
+ static const PointerType *getInt1PtrTy(LLVMContext &C, unsigned AS = 0);
+ static const PointerType *getInt8PtrTy(LLVMContext &C, unsigned AS = 0);
+ static const PointerType *getInt16PtrTy(LLVMContext &C, unsigned AS = 0);
+ static const PointerType *getInt32PtrTy(LLVMContext &C, unsigned AS = 0);
+ static const PointerType *getInt64PtrTy(LLVMContext &C, unsigned AS = 0);
/// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const Type *) { return true; }
void addRef() const {
assert(isAbstract() && "Cannot add a reference to a non-abstract type!");
- sys::AtomicIncrement32(&RefCount);
+ ++RefCount;
}
void dropRef() const {
// If this is the last PATypeHolder using this object, and there are no
// PATypeHandles using it, the type is dead, delete it now.
- uint32_t Count = sys::AtomicDecrement32(&RefCount);
- if (Count == 0 && AbstractTypeUsers.empty())
+ if (--RefCount == 0 && AbstractTypeUsers.empty())
this->destroy();
}
/// getPointerTo - Return a pointer to the current type. This is equivalent
/// to PointerType::get(Foo, AddrSpace).
- PointerType *getPointerTo(unsigned AddrSpace = 0) const;
+ const PointerType *getPointerTo(unsigned AddrSpace = 0) const;
private:
/// isSizedDerivedType - Derived types like structures and arrays are sized
/// reference to the type.
///
inline Type* PATypeHolder::get() const {
+ if (Ty == 0) return 0;
const Type *NewTy = Ty->getForwardedType();
if (!NewTy) return const_cast<Type*>(Ty);
return *const_cast<PATypeHolder*>(this) = NewTy;
}
inline void PATypeHolder::addRef() {
- assert(Ty && "Type Holder has a null type!");
- if (Ty->isAbstract())
+ if (Ty && Ty->isAbstract())
Ty->addRef();
}
inline void PATypeHolder::dropRef() {
- if (Ty->isAbstract())
+ if (Ty && Ty->isAbstract())
Ty->dropRef();
}
}
};
-template <> inline bool isa_impl<PointerType, Type>(const Type &Ty) {
- return Ty.getTypeID() == Type::PointerTyID;
-}
+template <> struct isa_impl<PointerType, Type> {
+ static inline bool doit(const Type &Ty) {
+ return Ty.getTypeID() == Type::PointerTyID;
+ }
+};
-std::ostream &operator<<(std::ostream &OS, const Type &T);
raw_ostream &operator<<(raw_ostream &OS, const Type &T);
} // End llvm namespace
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