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Add DenseMapInfo for int. 

llvm-svn: 102652
This commit is contained in:
Evan Cheng 2010-04-29 18:50:35 +00:00
parent 0cc5629f4e
commit d433757315
1 changed files with 10 additions and 0 deletions
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10
llvm/include/llvm/ADT/DenseMapInfo.h
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@ -92,6 +92,16 @@ template<> struct DenseMapInfo<unsigned long long> {
}
};
// Provide DenseMapInfo for ints.
template<> struct DenseMapInfo<int> {
static inline int getEmptyKey() { return 0x7fffffff; }
static inline int getTombstoneKey() { return -0x7fffffff - 1; }
static unsigned getHashValue(const int& Val) { return (unsigned)(Val * 37); }
static bool isEqual(const int& LHS, const int& RHS) {
return LHS == RHS;
}
};
// Provide DenseMapInfo for long longs.
template<> struct DenseMapInfo<long long> {
static inline long long getEmptyKey() { return 0x7fffffffffffffffLL; }