diff --git a/include/llvm/Transforms/Scalar.h b/include/llvm/Transforms/Scalar.h
index d408bee19fd..8a29079835b 100644
--- a/include/llvm/Transforms/Scalar.h
+++ b/include/llvm/Transforms/Scalar.h
@@ -175,6 +175,14 @@ Pass *createReassociatePass();
 //
 Pass *createCorrelatedExpressionEliminationPass();
 
+//===----------------------------------------------------------------------===//
+//
+// TailDuplication - Eliminate unconditional branches through controlled code
+// duplication, creating simpler CFG structures.
+//
+Pass *createTailDuplicationPass();
+
+
 //===----------------------------------------------------------------------===//
 //
 // CFG Simplification - Merge basic blocks, eliminate unreachable blocks,
@@ -182,6 +190,7 @@ Pass *createCorrelatedExpressionEliminationPass();
 //
 Pass *createCFGSimplificationPass();
 
+
 //===----------------------------------------------------------------------===//
 //
 // BreakCriticalEdges pass - Break all of the critical edges in the CFG by