diff --git a/include/llvm/Transforms/IPO.h b/include/llvm/Transforms/IPO.h
index 7e72cf9d28e..62cdf3ec436 100644
--- a/include/llvm/Transforms/IPO.h
+++ b/include/llvm/Transforms/IPO.h
@@ -163,6 +163,10 @@ FunctionPass *createSingleLoopExtractorPass();
 //
 ModulePass *createBlockExtractorPass(std::vector<BasicBlock*> &BTNE);
 
+// createOptimizeWellKnownCallsPass - This pass optimizes specific calls to
+// specific well-known (library) functions.
+ModulePass *createSimplifyLibCallsPass();
+
 } // End llvm namespace
 
 #endif