X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FDerivedTypes.h;h=56d1e3e237d6e2ac09ac6d3ae27d4de746038d18;hb=ce96902d88d473697f05c0465952dae374be564e;hp=1ae8cbd45b97f00695a6bec8640734a8fd311c50;hpb=efd4a5144b03f61ebfd53d0245176f95e1170fb8;p=oota-llvm.git diff --git a/include/llvm/DerivedTypes.h b/include/llvm/DerivedTypes.h index 1ae8cbd45b9..56d1e3e237d 100644 --- a/include/llvm/DerivedTypes.h +++ b/include/llvm/DerivedTypes.h @@ -2,14 +2,14 @@ // // The LLVM Compiler Infrastructure // -// This file was developed by the LLVM research group and is distributed under -// the University of Illinois Open Source License. See LICENSE.TXT for details. +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This file contains the declarations of classes that represent "derived // types". These are things like "arrays of x" or "structure of x, y, z" or -// "method returning x taking (y,z) as parameters", etc... +// "function returning x taking (y,z) as parameters", etc... // // The implementations of these classes live in the Type.cpp file. // @@ -19,6 +19,7 @@ #define LLVM_DERIVED_TYPES_H #include "llvm/Type.h" +#include "llvm/Support/DataTypes.h" namespace llvm { @@ -31,13 +32,13 @@ class PointerValType; class VectorValType; class IntegerValType; class APInt; -class ParamAttrsList; +class LLVMContext; class DerivedType : public Type { friend class Type; protected: - explicit DerivedType(TypeID id) : Type(id) {} + 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 @@ -68,7 +69,7 @@ public: void dump() const { Type::dump(); } // Methods for support type inquiry through isa, cast, and dyn_cast: - static inline bool classof(const DerivedType *T) { return true; } + static inline bool classof(const DerivedType *) { return true; } static inline bool classof(const Type *T) { return T->isDerivedType(); } @@ -76,11 +77,14 @@ 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 { + friend class LLVMContextImpl; + protected: - explicit IntegerType(unsigned NumBits) : DerivedType(IntegerTyID) { + explicit IntegerType(LLVMContext &C, unsigned NumBits) : + DerivedType(C, IntegerTyID) { setSubclassData(NumBits); } friend class TypeMap; @@ -93,19 +97,19 @@ public: ///< 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. /// @brief Get or create an IntegerType instance. - static const IntegerType* get(unsigned NumBits); + static const IntegerType* get(LLVMContext &C, unsigned NumBits); /// @brief Get the number of bits in this IntegerType unsigned getBitWidth() const { return getSubclassData(); } /// getBitMask - Return a bitmask with ones set for all of the bits /// that can be set by an unsigned version of this type. This is 0xFF for - /// sbyte/ubyte, 0xFFFF for shorts, etc. + /// i8, 0xFFFF for i16, etc. uint64_t getBitMask() const { return ~uint64_t(0UL) >> (64-getBitWidth()); } @@ -115,20 +119,20 @@ public: 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; // Methods for support type inquiry through isa, cast, and dyn_cast: - static inline bool classof(const IntegerType *T) { return true; } + static inline bool classof(const IntegerType *) { return true; } static inline bool classof(const Type *T) { return T->getTypeID() == IntegerTyID; } @@ -140,28 +144,39 @@ public: class FunctionType : public DerivedType { friend class TypeMap; bool isVarArgs; - const ParamAttrsList *ParamAttrs; FunctionType(const FunctionType &); // Do not implement const FunctionType &operator=(const FunctionType &); // Do not implement FunctionType(const Type *Result, const std::vector &Params, - bool IsVarArgs, const ParamAttrsList *Attrs = 0); + bool IsVarArgs); 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 &Params, ///< The types of the parameters - bool isVarArg, ///< Whether this is a variable argument length function - const ParamAttrsList *Attrs = 0 - ///< Indicates the parameter attributes to use, if any. The 0th entry - ///< in the list refers to the return type. Parameters are numbered - ///< starting at 1. This argument must be on the heap and FunctionType - ///< owns it after its passed here. + 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(), 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]; } @@ -177,20 +192,12 @@ public: /// unsigned getNumParams() const { return NumContainedTys - 1; } - bool isStructReturn() const; - - /// The parameter attributes for the \p ith parameter are returned. The 0th - /// parameter refers to the return type of the function. - /// @returns The ParameterAttributes for the \p ith parameter. - /// @brief Get the attributes for a parameter - const ParamAttrsList *getParamAttrs() const { return ParamAttrs; } - // 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 *T) { return true; } + static inline bool classof(const FunctionType *) { return true; } static inline bool classof(const Type *T) { return T->getTypeID() == FunctionTyID; } @@ -201,17 +208,20 @@ public: /// and VectorType class CompositeType : public DerivedType { protected: - inline explicit CompositeType(TypeID id) : DerivedType(id) { } + inline explicit CompositeType(LLVMContext &C, TypeID id) : + DerivedType(C, id) { } public: /// getTypeAtIndex - Given an index value into the type, return the type of /// the element. /// virtual const Type *getTypeAtIndex(const Value *V) const = 0; + virtual const Type *getTypeAtIndex(unsigned Idx) const = 0; virtual bool indexValid(const Value *V) const = 0; + virtual bool indexValid(unsigned Idx) const = 0; // Methods for support type inquiry through isa, cast, and dyn_cast: - static inline bool classof(const CompositeType *T) { return true; } + static inline bool classof(const CompositeType *) { return true; } static inline bool classof(const Type *T) { return T->getTypeID() == ArrayTyID || T->getTypeID() == StructTyID || @@ -227,14 +237,33 @@ class StructType : public CompositeType { friend class TypeMap; StructType(const StructType &); // Do not implement const StructType &operator=(const StructType &); // Do not implement - StructType(const std::vector &Types, bool isPacked); + StructType(LLVMContext &C, + const std::vector &Types, bool isPacked); public: /// StructType::get - This static method is the primary way to create a /// StructType. /// - static StructType *get(const std::vector &Params, + static StructType *get(LLVMContext &Context, + const std::vector &Params, bool isPacked=false); + /// StructType::get - Create an empty structure type. + /// + static StructType *get(LLVMContext &Context, bool isPacked=false) { + return get(Context, std::vector(), 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(LLVMContext &Context, + 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; } @@ -250,15 +279,17 @@ public: /// getTypeAtIndex - Given an index value into the type, return the type of /// the element. For a structure type, this must be a constant value... /// - virtual const Type *getTypeAtIndex(const Value *V) const ; + virtual const Type *getTypeAtIndex(const Value *V) const; + virtual const Type *getTypeAtIndex(unsigned Idx) const; virtual bool indexValid(const Value *V) const; + virtual bool indexValid(unsigned Idx) const; // 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 *T) { return true; } + static inline bool classof(const StructType *) { return true; } static inline bool classof(const Type *T) { return T->getTypeID() == StructTyID; } @@ -266,7 +297,6 @@ public: bool isPacked() const { return (0 != getSubclassData()) ? true : false; } }; - /// SequentialType - This is the superclass of the array, pointer and vector /// type classes. All of these represent "arrays" in memory. The array type /// represents a specifically sized array, pointer types are unsized/unknown @@ -283,9 +313,9 @@ class SequentialType : public CompositeType { // avoiding warning: 'this' : used in base member initializer list SequentialType* this_() { return this; } protected: - SequentialType(TypeID TID, const Type *ElType) - : CompositeType(TID), ContainedType(ElType, this_()) { - ContainedTys = &ContainedType; + SequentialType(TypeID TID, const Type *ElType) + : CompositeType(ElType->getContext(), TID), ContainedType(ElType, this_()) { + ContainedTys = &ContainedType; NumContainedTys = 1; } @@ -293,16 +323,22 @@ public: inline const Type *getElementType() const { return ContainedTys[0]; } virtual bool indexValid(const Value *V) const; + virtual bool indexValid(unsigned) const { + return true; + } /// getTypeAtIndex - Given an index value into the type, return the type of /// the element. For sequential types, there is only one subtype... /// - virtual const Type *getTypeAtIndex(const Value *V) const { + virtual const Type *getTypeAtIndex(const Value *) const { + return ContainedTys[0]; + } + virtual const Type *getTypeAtIndex(unsigned) const { return ContainedTys[0]; } // Methods for support type inquiry through isa, cast, and dyn_cast: - static inline bool classof(const SequentialType *T) { return true; } + static inline bool classof(const SequentialType *) { return true; } static inline bool classof(const Type *T) { return T->getTypeID() == ArrayTyID || T->getTypeID() == PointerTyID || @@ -326,6 +362,10 @@ public: /// 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. @@ -333,7 +373,7 @@ public: virtual void typeBecameConcrete(const DerivedType *AbsTy); // Methods for support type inquiry through isa, cast, and dyn_cast: - static inline bool classof(const ArrayType *T) { return true; } + static inline bool classof(const ArrayType *) { return true; } static inline bool classof(const Type *T) { return T->getTypeID() == ArrayTyID; } @@ -354,12 +394,48 @@ public: /// static VectorType *get(const 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) { + unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits(); + const Type *EltTy = IntegerType::get(VTy->getContext(), EltBits); + return VectorType::get(EltTy, VTy->getNumElements()); + } + + /// VectorType::getExtendedElementVectorType - This static method is like + /// getInteger except that the element types are twice as wide as the + /// elements in the input type. + /// + static VectorType *getExtendedElementVectorType(const VectorType *VTy) { + unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits(); + const Type *EltTy = IntegerType::get(VTy->getContext(), EltBits * 2); + return VectorType::get(EltTy, VTy->getNumElements()); + } + + /// VectorType::getTruncatedElementVectorType - This static method is like + /// getInteger except that the element types are half as wide as the + /// elements in the input type. + /// + static VectorType *getTruncatedElementVectorType(const VectorType *VTy) { + 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); + 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 { - return NumElements *getElementType()->getPrimitiveSizeInBits(); + inline unsigned getBitWidth() const { + return NumElements * getElementType()->getPrimitiveSizeInBits(); } // Implement the AbstractTypeUser interface. @@ -367,7 +443,7 @@ public: virtual void typeBecameConcrete(const DerivedType *AbsTy); // Methods for support type inquiry through isa, cast, and dyn_cast: - static inline bool classof(const VectorType *T) { return true; } + static inline bool classof(const VectorType *) { return true; } static inline bool classof(const Type *T) { return T->getTypeID() == VectorTyID; } @@ -378,19 +454,35 @@ public: /// class PointerType : public SequentialType { friend class TypeMap; + unsigned AddressSpace; + PointerType(const PointerType &); // Do not implement const PointerType &operator=(const PointerType &); // Do not implement - explicit PointerType(const Type *ElType); + explicit PointerType(const Type *ElType, unsigned AddrSpace); public: - /// PointerType::get - This is the only way to construct a new pointer type. - static PointerType *get(const Type *ElementType); + /// 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 + /// specified type in the generic address space (address space zero). + 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; } // 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 *T) { return true; } + static inline bool classof(const PointerType *) { return true; } static inline bool classof(const Type *T) { return T->getTypeID() == PointerTyID; } @@ -400,18 +492,17 @@ public: /// OpaqueType - Class to represent abstract types /// class OpaqueType : public DerivedType { + friend class LLVMContextImpl; OpaqueType(const OpaqueType &); // DO NOT IMPLEMENT const OpaqueType &operator=(const OpaqueType &); // DO NOT IMPLEMENT - OpaqueType(); + OpaqueType(LLVMContext &C); public: /// OpaqueType::get - Static factory method for the OpaqueType class... /// - static OpaqueType *get() { - return new OpaqueType(); // All opaque types are distinct - } + static OpaqueType *get(LLVMContext &C); // Implement support for type inquiry through isa, cast, and dyn_cast: - static inline bool classof(const OpaqueType *T) { return true; } + static inline bool classof(const OpaqueType *) { return true; } static inline bool classof(const Type *T) { return T->getTypeID() == OpaqueTyID; }