diff --git a/lib/Target/Lanai/LanaiRegisterInfo.cpp b/lib/Target/Lanai/LanaiRegisterInfo.cpp
index 12a2571c28d..fe54589f8b0 100644
--- a/lib/Target/Lanai/LanaiRegisterInfo.cpp
+++ b/lib/Target/Lanai/LanaiRegisterInfo.cpp
@@ -264,12 +264,6 @@ LanaiRegisterInfo::getFrameRegister(const MachineFunction & /*MF*/) const {
 
 unsigned LanaiRegisterInfo::getBaseRegister() const { return Lanai::R14; }
 
-bool LanaiRegisterInfo::canRealignStack(const MachineFunction &MF) const {
-  if (!TargetRegisterInfo::canRealignStack(MF))
-    return false;
-  return true;
-}
-
 unsigned LanaiRegisterInfo::getEHExceptionRegister() const {
   llvm_unreachable("no exception support");
   return 0;
diff --git a/lib/Target/Lanai/LanaiRegisterInfo.h b/lib/Target/Lanai/LanaiRegisterInfo.h
index c6e459076eb..d88a1919385 100644
--- a/lib/Target/Lanai/LanaiRegisterInfo.h
+++ b/lib/Target/Lanai/LanaiRegisterInfo.h
@@ -41,8 +41,6 @@ struct LanaiRegisterInfo : public LanaiGenRegisterInfo {
                            unsigned FIOperandNum,
                            RegScavenger *RS = nullptr) const override;
 
-  bool canRealignStack(const MachineFunction &MF) const override;
-
   // Debug information queries.
   unsigned getRARegister() const;
   unsigned getFrameRegister(const MachineFunction &MF) const override;