In DenseMapInfo<pair<T, U>> tombstone key, use the tombstone for T an…

…d U instead

of the empty key for U. This shouldn't really matter because the tombstone key
for the pair was still distinct from every other key, but it is odd. Patch by
Michael Ilseman!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136336 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/ADT/DenseMapInfo.h

@@ -142,7 +142,7 @@ struct DenseMapInfo<std::pair<T, U> > {
   }
   static inline Pair getTombstoneKey() {
     return std::make_pair(FirstInfo::getTombstoneKey(),
-                            SecondInfo::getEmptyKey());
+                          SecondInfo::getTombstoneKey());
   }
   static unsigned getHashValue(const Pair& PairVal) {
     uint64_t key = (uint64_t)FirstInfo::getHashValue(PairVal.first) << 32
@@ -158,7 +158,7 @@ struct DenseMapInfo<std::pair<T, U> > {
     return (unsigned)key;
   }
   static bool isEqual(const Pair &LHS, const Pair &RHS) {
-    return FirstInfo::isEqual(LHS.first, RHS.first) && 
+    return FirstInfo::isEqual(LHS.first, RHS.first) &&
            SecondInfo::isEqual(LHS.second, RHS.second);
   }
 };