diff --git a/llvm/lib/CodeGen/MachineLICM.cpp b/llvm/lib/CodeGen/MachineLICM.cpp
index 19e36669a25414..be18581d866dfe 100644
--- a/llvm/lib/CodeGen/MachineLICM.cpp
+++ b/llvm/lib/CodeGen/MachineLICM.cpp
@@ -246,8 +246,6 @@ namespace {
 
     void HoistOutOfLoop(MachineDomTreeNode *HeaderN);
 
-    void HoistRegion(MachineDomTreeNode *N, bool IsHeader);
-
     void SinkIntoLoop();
 
     void InitRegPressure(MachineBasicBlock *BB);