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-rw-r--r--llvm/include/llvm/ADT/FoldingSet.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/include/llvm/ADT/FoldingSet.h b/llvm/include/llvm/ADT/FoldingSet.h
index 9b7ee8520d7..14c5933d388 100644
--- a/llvm/include/llvm/ADT/FoldingSet.h
+++ b/llvm/include/llvm/ADT/FoldingSet.h
@@ -794,6 +794,14 @@ template<typename T> struct FoldingSetTrait<T*> {
ID.AddPointer(X);
}
};
+template <typename T1, typename T2>
+struct FoldingSetTrait<std::pair<T1, T2>> {
+ static inline void Profile(const std::pair<T1, T2> &P,
+ llvm::FoldingSetNodeID &ID) {
+ ID.Add(P.first);
+ ID.Add(P.second);
+ }
+};
} // End of namespace llvm.
#endif
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