diff --git a/include/llvm/Analysis/MemoryDependenceAnalysis.h b/include/llvm/Analysis/MemoryDependenceAnalysis.h
index 409c10b01d5..76425d12bef 100644
--- a/include/llvm/Analysis/MemoryDependenceAnalysis.h
+++ b/include/llvm/Analysis/MemoryDependenceAnalysis.h
@@ -74,6 +74,9 @@ class MemoryDependenceAnalysis : public FunctionPass {
     const Instruction* getDependency(Instruction* query, Instruction* start = 0,
                                BasicBlock* block = 0);
     
+    /// getNonLocalDependency - Fills the passed-in map with the non-local 
+    /// dependencies of the queries.  The map will contain NonLocal for
+    /// blocks between the query and its dependencies.
     void getNonLocalDependency(Instruction* query,
                                DenseMap<BasicBlock*, Value*>& resp);