diff --git a/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp b/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
index f2ca118cd475..660466d0d6c2 100644
--- a/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
@@ -208,7 +208,6 @@ namespace {
 
     void removeBlock(MachineBasicBlock *B);
     void eliminatePhis(MachineBasicBlock *B);
-    void replacePhiEdges(MachineBasicBlock *OldB, MachineBasicBlock *NewB);
     void mergeBlocks(MachineBasicBlock *PredB, MachineBasicBlock *SuccB);
     void simplifyFlowGraph(const FlowPattern &FP);
 
@@ -1006,20 +1005,6 @@ void HexagonEarlyIfConversion::eliminatePhis(MachineBasicBlock *B) {
   }
 }
 
-void HexagonEarlyIfConversion::replacePhiEdges(MachineBasicBlock *OldB,
-      MachineBasicBlock *NewB) {
-  for (auto I = OldB->succ_begin(), E = OldB->succ_end(); I != E; ++I) {
-    MachineBasicBlock *SB = *I;
-    MachineBasicBlock::iterator P, N = SB->getFirstNonPHI();
-    for (P = SB->begin(); P != N; ++P) {
-      MachineInstr &PN = *P;
-      for (MachineOperand &MO : PN.operands())
-        if (MO.isMBB() && MO.getMBB() == OldB)
-          MO.setMBB(NewB);
-    }
-  }
-}
-
 void HexagonEarlyIfConversion::mergeBlocks(MachineBasicBlock *PredB,
       MachineBasicBlock *SuccB) {
   DEBUG(dbgs() << "Merging blocks " << PrintMB(PredB) << " and "