diff options
Diffstat (limited to 'lib/VMCore/TypesContext.h')
-rw-r--r-- | lib/VMCore/TypesContext.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/VMCore/TypesContext.h b/lib/VMCore/TypesContext.h index 4842845..02ab113 100644 --- a/lib/VMCore/TypesContext.h +++ b/lib/VMCore/TypesContext.h @@ -180,6 +180,32 @@ public: } }; +// UnionValType - Define a class to hold the key that goes into the TypeMap +// +class UnionValType { + std::vector<const Type*> ElTypes; +public: + UnionValType(const Type* const* Types, unsigned NumTypes) + : ElTypes(&Types[0], &Types[NumTypes]) {} + + static UnionValType get(const UnionType *UT) { + std::vector<const Type *> ElTypes; + ElTypes.reserve(UT->getNumElements()); + for (unsigned i = 0, e = UT->getNumElements(); i != e; ++i) + ElTypes.push_back(UT->getElementType(i)); + + return UnionValType(&ElTypes[0], ElTypes.size()); + } + + static unsigned hashTypeStructure(const UnionType *UT) { + return UT->getNumElements(); + } + + inline bool operator<(const UnionValType &UTV) const { + return (ElTypes < UTV.ElTypes); + } +}; + // FunctionValType - Define a class to hold the key that goes into the TypeMap // class FunctionValType { |