#define LLVM_DERIVED_TYPES_H
#include "llvm/Type.h"
-#include "llvm/ADT/APInt.h"
namespace llvm {
class PointerValType;
class VectorValType;
class IntegerValType;
+class APInt;
+class ParamAttrsList;
class DerivedType : public Type {
friend class Type;
protected:
- DerivedType(TypeID id) : Type(id) {}
+ explicit DerivedType(TypeID id) : Type(id) {}
/// notifyUsesThatTypeBecameConcrete - Notify AbstractTypeUsers of this type
/// that the current type has transitioned from being abstract to being
/// @brief Integer representation type
class IntegerType : public DerivedType {
protected:
- IntegerType(unsigned NumBits) : DerivedType(IntegerTyID) {
+ explicit IntegerType(unsigned NumBits) : DerivedType(IntegerTyID) {
setSubclassData(NumBits);
}
friend class TypeMap<IntegerValType, IntegerType>;
/// that can be set by an unsigned version of this type. This is 0xFF for
/// sbyte/ubyte, 0xFFFF for shorts, etc.
uint64_t getBitMask() const {
- return ~uint64_t(0UL) >> (64-getPrimitiveSizeInBits());
+ return ~uint64_t(0UL) >> (64-getBitWidth());
}
+ /// getSignBit - Return a uint64_t with just the most significant bit set (the
+ /// sign bit, if the value is treated as a signed number).
+ 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 {
- return APInt::getAllOnesValue(getBitWidth());
- }
+ APInt getMask() const;
/// This method determines if the width of this IntegerType is a power-of-2
/// in terms of 8 bit bytes.
/// FunctionType - Class to represent function types
///
class FunctionType : public DerivedType {
-public:
- /// Function parameters can have attributes to indicate how they should be
- /// treated by optimizations and code generation. This enumeration lists the
- /// set of possible attributes.
- /// @brief Function parameter attributes enumeration.
- enum ParameterAttributes {
- NoAttributeSet = 0, ///< No attribute value has been set
- ZExtAttribute = 1, ///< zero extended before/after call
- SExtAttribute = 1 << 1, ///< sign extended before/after call
- NoReturnAttribute = 1 << 2, ///< mark the function as not returning
- InRegAttribute = 1 << 3, ///< force argument to be passed in register
- StructRetAttribute= 1 << 4 ///< hidden pointer to structure to return
- };
- typedef std::vector<ParameterAttributes> ParamAttrsList;
-private:
friend class TypeMap<FunctionValType, FunctionType>;
bool isVarArgs;
- ParamAttrsList *ParamAttrs;
+ const ParamAttrsList *ParamAttrs;
FunctionType(const FunctionType &); // Do not implement
const FunctionType &operator=(const FunctionType &); // Do not implement
FunctionType(const Type *Result, const std::vector<const Type*> &Params,
- bool IsVarArgs, const ParamAttrsList &Attrs);
+ bool IsVarArgs, const ParamAttrsList *Attrs = 0);
public:
/// FunctionType::get - This static method is the primary way of constructing
const Type *Result, ///< The result type
const std::vector<const Type*> &Params, ///< The types of the parameters
bool isVarArg, ///< Whether this is a variable argument length function
- const ParamAttrsList & Attrs = ParamAttrsList()
+ 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.
+ ///< starting at 1. This argument must be on the heap and FunctionType
+ ///< owns it after its passed here.
);
inline bool isVarArg() const { return isVarArgs; }
inline const Type *getReturnType() const { return ContainedTys[0]; }
- typedef std::vector<PATypeHandle>::const_iterator param_iterator;
- param_iterator param_begin() const { return ContainedTys.begin()+1; }
- param_iterator param_end() const { return ContainedTys.end(); }
+ 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]; }
/// getNumParams - Return the number of fixed parameters this function type
/// requires. This does not consider varargs.
///
- unsigned getNumParams() const { return unsigned(ContainedTys.size()-1); }
+ unsigned getNumParams() const { return NumContainedTys - 1; }
- bool isStructReturn() const {
- return (getNumParams() && paramHasAttr(1, StructRetAttribute));
- }
+ 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
- ParameterAttributes getParamAttrs(unsigned i) const;
-
- /// @brief Determine if a parameter attribute is set
- bool paramHasAttr(unsigned i, ParameterAttributes attr) const {
- return getParamAttrs(i) & attr;
- }
-
- /// @brief Return the number of parameter attributes this type has.
- unsigned getNumAttrs() const {
- return (ParamAttrs ? unsigned(ParamAttrs->size()) : 0);
- }
-
- /// @brief Convert a ParameterAttribute into its assembly text
- static std::string getParamAttrsText(ParameterAttributes Attr);
+ const ParamAttrsList *getParamAttrs() const { return ParamAttrs; }
// Implement the AbstractTypeUser interface.
virtual void refineAbstractType(const DerivedType *OldTy, const Type *NewTy);
/// and VectorType
class CompositeType : public DerivedType {
protected:
- inline CompositeType(TypeID id) : DerivedType(id) { }
+ inline explicit CompositeType(TypeID id) : DerivedType(id) { }
public:
/// getTypeAtIndex - Given an index value into the type, return the type of
bool isPacked=false);
// Iterator access to the elements
- typedef std::vector<PATypeHandle>::const_iterator element_iterator;
- element_iterator element_begin() const { return ContainedTys.begin(); }
- element_iterator element_end() const { return ContainedTys.end(); }
+ typedef Type::subtype_iterator element_iterator;
+ element_iterator element_begin() const { return ContainedTys; }
+ element_iterator element_end() const { return &ContainedTys[NumContainedTys];}
// Random access to the elements
- unsigned getNumElements() const { return unsigned(ContainedTys.size()); }
+ unsigned getNumElements() const { return NumContainedTys; }
const Type *getElementType(unsigned N) const {
- assert(N < ContainedTys.size() && "Element number out of range!");
+ assert(N < NumContainedTys && "Element number out of range!");
return ContainedTys[N];
}
return T->getTypeID() == StructTyID;
}
- bool isPacked() const { return getSubclassData(); }
+ bool isPacked() const { return (0 != getSubclassData()) ? true : false; }
};
-/// SequentialType - This is the superclass of the array, pointer and packed
+/// 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
/// size arrays, vector types represent specifically sized arrays that
/// components out in memory identically.
///
class SequentialType : public CompositeType {
+ PATypeHandle 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(TID) {
- ContainedTys.reserve(1);
- ContainedTys.push_back(PATypeHandle(ElType, this));
+ SequentialType(TypeID TID, const Type *ElType)
+ : CompositeType(TID), ContainedType(ElType, this_()) {
+ ContainedTys = &ContainedType;
+ NumContainedTys = 1;
}
public:
friend class TypeMap<PointerValType, PointerType>;
PointerType(const PointerType &); // Do not implement
const PointerType &operator=(const PointerType &); // Do not implement
- PointerType(const Type *ElType);
+ explicit PointerType(const Type *ElType);
public:
/// PointerType::get - This is the only way to construct a new pointer type.
static PointerType *get(const Type *ElementType);
return new OpaqueType(); // All opaque types are distinct
}
- // Implement the AbstractTypeUser interface.
- virtual void refineAbstractType(const DerivedType *OldTy, const Type *NewTy) {
- abort(); // FIXME: this is not really an AbstractTypeUser!
- }
- virtual void typeBecameConcrete(const DerivedType *AbsTy) {
- abort(); // FIXME: this is not really an AbstractTypeUser!
- }
-
// 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 Type *T) {
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