1 files changed, 7 insertions, 1 deletions
diff --git a/include/llvm/ADT/SetVector.h b/include/llvm/ADT/SetVector.h
index 4dc18bc52178..13378aa3a04e 100644
--- a/include/llvm/ADT/SetVector.h
+++ b/include/llvm/ADT/SetVector.h
@@ -119,6 +119,12 @@ public:
     return vector_.rend();
   }
 
+  /// \brief Return the first element of the SetVector.
+  const T &front() const {
+    assert(!empty() && "Cannot call front() on empty SetVector!");
+    return vector_.front();
+  }
+
   /// \brief Return the last element of the SetVector.
   const T &back() const {
     assert(!empty() && "Cannot call back() on empty SetVector!");
@@ -232,7 +238,7 @@ public:
   bool operator!=(const SetVector &that) const {
     return vector_ != that.vector_;
   }
-  
+
   /// \brief Compute This := This u S, return whether 'This' changed.
   /// TODO: We should be able to use set_union from SetOperations.h, but
   ///       SetVector interface is inconsistent with DenseSet.