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Added "Profile" method to APFloat for use with FoldingSet.

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Added member template "Add" to FoldingSetNodeID that allows "adding" arbitrary
objects to a profile via dispatch to FoldingSetTrait<T>::Profile().

Removed FoldingSetNodeID::AddAPFloat and FoldingSetNodeID::APInt, as their
functionality is now replaced using the above mentioned member template.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46957 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ted Kremenek
2008-02-11 17:24:50 +00:00
parent 04feb51886
commit 1f801fa5ad
6 changed files with 33 additions and 29 deletions
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4
include/llvm/ADT/APFloat.h
View File

@@ -181,6 +181,10 @@ namespace llvm {
APFloat(const APFloat &);
~APFloat();
/// Profile - Used to insert APFloat objects, or objects that contain
/// APFloat objects, into FoldingSets.
void Profile(FoldingSetNodeID& NID) const;
/// @brief Used by the Bitcode serializer to emit APInts to Bitcode.
void Emit(Serializer& S) const;

31
include/llvm/ADT/FoldingSet.h
View File

@@ -178,6 +178,19 @@ protected:
virtual void GetNodeProfile(FoldingSetNodeID &ID, Node *N) const = 0;
};
//===----------------------------------------------------------------------===//
/// FoldingSetTrait - This trait class is used to define behavior of how
/// to "profile" (in the FoldingSet parlance) an object of a given type.
/// The default behavior is to invoke a 'Profile' method on an object, but
/// through template specialization the behavior can be tailored for specific
/// types. Combined with the FoldingSetNodeWrapper classs, one can add objects
/// to FoldingSets that were not originally designed to have that behavior.
///
template<typename T> struct FoldingSetTrait {
static inline void Profile(const T& X, FoldingSetNodeID& ID) { X.Profile(ID);}
static inline void Profile(T& X, FoldingSetNodeID& ID) { X.Profile(ID); }
};
//===--------------------------------------------------------------------===//
/// FoldingSetNodeID - This class is used to gather all the unique data bits of
/// a node. When all the bits are gathered this class is used to produce a
@@ -206,10 +219,11 @@ public:
void AddInteger(uint64_t I);
void AddFloat(float F);
void AddDouble(double D);
void AddAPFloat(const APFloat& apf);
void AddAPInt(const APInt& api);
void AddString(const std::string &String);
template <typename T>
inline void Add(const T& x) { FoldingSetTrait<T>::Profile(x, *this); }
/// clear - Clear the accumulated profile, allowing this FoldingSetNodeID
/// object to be used to compute a new profile.
inline void clear() { Bits.clear(); }
@@ -227,19 +241,6 @@ public:
typedef FoldingSetImpl::Node FoldingSetNode;
template<class T> class FoldingSetIterator;
template<class T> class FoldingSetBucketIterator;
//===----------------------------------------------------------------------===//
/// FoldingSetTrait - This trait class is used to define behavior of how
/// to "profile" (in the FoldingSet parlance) an object of a given type.
/// The default behavior is to invoke a 'Profile' method on an object, but
/// through template specialization the behavior can be tailored for specific
/// types. Combined with the FoldingSetNodeWrapper classs, one can add objects
/// to FoldingSets that were not originally designed to have that behavior.
///
template<typename T> struct FoldingSetTrait {
static inline void Profile(const T& X, FoldingSetNodeID& ID) { X.Profile(ID);}
static inline void Profile(T& X, FoldingSetNodeID& ID) { X.Profile(ID); }
};
//===----------------------------------------------------------------------===//
/// FoldingSet - This template class is used to instantiate a specialized