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Add operator< for FoldingSetNodeID.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163454 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ted Kremenek 2012-09-08 04:25:29 +00:00
parent a344341849
commit 0d651e0c9d
2 changed files with 27 additions and 0 deletions
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9
include/llvm/ADT/FoldingSet.h
View File

@ -278,6 +278,10 @@ public:
bool operator==(FoldingSetNodeIDRef) const;
/// Used to compare the "ordering" of two nodes as defined by the
/// profiled bits and their ordering defined by memcmp().
bool operator<(FoldingSetNodeIDRef) const;
const unsigned *getData() const { return Data; }
size_t getSize() const { return Size; }
};
@ -327,6 +331,11 @@ public:
bool operator==(const FoldingSetNodeID &RHS) const;
bool operator==(const FoldingSetNodeIDRef RHS) const;
/// Used to compare the "ordering" of two nodes as defined by the
/// profiled bits and their ordering defined by memcmp().
bool operator<(const FoldingSetNodeID &RHS) const;
bool operator<(const FoldingSetNodeIDRef RHS) const;
/// Intern - Copy this node's data to a memory region allocated from the
/// given allocator and return a FoldingSetNodeIDRef describing the
/// interned data.

18
lib/Support/FoldingSet.cpp
View File

@ -38,6 +38,14 @@ bool FoldingSetNodeIDRef::operator==(FoldingSetNodeIDRef RHS) const {
return memcmp(Data, RHS.Data, Size*sizeof(*Data)) == 0;
}
/// Used to compare the "ordering" of two nodes as defined by the
/// profiled bits and their ordering defined by memcmp().
bool FoldingSetNodeIDRef::operator<(FoldingSetNodeIDRef RHS) const {
if (Size != RHS.Size)
return Size < RHS.Size;
return memcmp(Data, RHS.Data, Size*sizeof(*Data)) < 0;
}
//===----------------------------------------------------------------------===//
// FoldingSetNodeID Implementation
@ -152,6 +160,16 @@ bool FoldingSetNodeID::operator==(FoldingSetNodeIDRef RHS) const {
return FoldingSetNodeIDRef(Bits.data(), Bits.size()) == RHS;
}
/// Used to compare the "ordering" of two nodes as defined by the
/// profiled bits and their ordering defined by memcmp().
bool FoldingSetNodeID::operator<(const FoldingSetNodeID &RHS)const{
return *this < FoldingSetNodeIDRef(RHS.Bits.data(), RHS.Bits.size());
}
bool FoldingSetNodeID::operator<(FoldingSetNodeIDRef RHS) const {
return FoldingSetNodeIDRef(Bits.data(), Bits.size()) < RHS;
}
/// Intern - Copy this node's data to a memory region allocated from the
/// given allocator and return a FoldingSetNodeIDRef describing the
/// interned data.