Index: include/llvm/ADT/SetVector.h
===================================================================
--- include/llvm/ADT/SetVector.h
+++ include/llvm/ADT/SetVector.h
@@ -113,6 +113,12 @@
   }
 
   /// \brief Return the last 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!");
     return vector_.back();