X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FDerivedTypes.h;h=053091b86fe16be30787c410c56ed2de53538666;hb=819c4f365fe2bf9be75faafa667fb22366dabaf5;hp=7fc7ed6a91cd173acb90ad05f4de36c070ae4090;hpb=d8ff3caaa0d5dd4a7cbbe25c42d70af2e3caca7f;p=oota-llvm.git diff --git a/include/llvm/DerivedTypes.h b/include/llvm/DerivedTypes.h index 7fc7ed6a91c..053091b86fe 100644 --- a/include/llvm/DerivedTypes.h +++ b/include/llvm/DerivedTypes.h @@ -50,6 +50,10 @@ protected: /// void dropAllTypeUses(); + /// unlockedRefineAbstractTypeTo - Internal version of refineAbstractTypeTo + /// that performs no locking. Only used for internal recursion. + void unlockedRefineAbstractTypeTo(const Type *NewType); + public: //===--------------------------------------------------------------------===// @@ -67,7 +71,7 @@ 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(); } @@ -75,7 +79,7 @@ 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 { protected: @@ -92,7 +96,7 @@ 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. @@ -104,7 +108,7 @@ public: /// 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()); } @@ -114,20 +118,20 @@ 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; } @@ -147,7 +151,7 @@ class FunctionType : public DerivedType { 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 @@ -155,6 +159,23 @@ public: 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]; } @@ -175,7 +196,7 @@ public: 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; } @@ -193,10 +214,12 @@ public: /// 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 || @@ -217,14 +240,25 @@ public: /// StructType::get - This static method is the primary way to create a /// StructType. /// - static StructType *get(const std::vector &Params, + static StructType *get(const std::vector &Params, bool isPacked=false); + /// StructType::get - Create an empty structure type. + /// + static StructType *get(bool isPacked=false) { + return get(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. + /// 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(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; } @@ -240,15 +274,17 @@ 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; } @@ -273,9 +309,9 @@ class SequentialType : public CompositeType { // avoiding warning: 'this' : used in base member initializer list SequentialType* this_() { return this; } protected: - SequentialType(TypeID TID, const Type *ElType) + SequentialType(TypeID TID, const Type *ElType) : CompositeType(TID), ContainedType(ElType, this_()) { - ContainedTys = &ContainedType; + ContainedTys = &ContainedType; NumContainedTys = 1; } @@ -283,16 +319,22 @@ 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 || @@ -316,6 +358,10 @@ 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. @@ -323,7 +369,7 @@ 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; } @@ -344,11 +390,47 @@ 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(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(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(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 { + inline unsigned getBitWidth() const { return NumElements *getElementType()->getPrimitiveSizeInBits(); } @@ -357,7 +439,7 @@ 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; } @@ -369,21 +451,25 @@ 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, unsigned AddrSpace); public: - /// PointerType::get - This constructs a pointer to an object of the specified + /// 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 + + /// 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(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; } @@ -392,7 +478,7 @@ public: 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; } @@ -413,7 +499,7 @@ public: } // 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; }