Add specialization of FoldingSetTrait for std::pair.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210990 91177308-0d34-0410-b5e6-96231b3b80d8
jcnm · Jun 15, 2014 · cc3f31a · cc3f31a
1 parent 40ed1d8
commit cc3f31a
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/include/llvm/ADT/FoldingSet.h b/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