diff --git a/llvm/lib/Target/Lanai/LanaiISelLowering.h b/llvm/lib/Target/Lanai/LanaiISelLowering.h
index bd065f76b9c5..92361cd2470e 100644
--- a/llvm/lib/Target/Lanai/LanaiISelLowering.h
+++ b/llvm/lib/Target/Lanai/LanaiISelLowering.h
@@ -79,9 +79,6 @@ public:
   SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
-  SDValue LowerCTTZ(SDValue Op, SelectionDAG &DAG) const;
-  SDValue LowerCTLZ(SDValue Op, SelectionDAG &DAG) const;
-  SDValue LowerCTTZ_ZERO_UNDEF(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const;
   SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;