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diff --git a/lib/Target/AArch64/AArch64FrameLowering.h b/lib/Target/AArch64/AArch64FrameLowering.h
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+++ b/lib/Target/AArch64/AArch64FrameLowering.h
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+//==-- AArch64FrameLowering.h - TargetFrameLowering for AArch64 --*- C++ -*-==//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef AArch64_FRAMELOWERING_H
+#define AArch64_FRAMELOWERING_H
+
+#include "llvm/Target/TargetFrameLowering.h"
+
+namespace llvm {
+
+class AArch64Subtarget;
+class AArch64TargetMachine;
+
+class AArch64FrameLowering : public TargetFrameLowering {
+  const AArch64TargetMachine &TM;
+
+public:
+  explicit AArch64FrameLowering(const AArch64TargetMachine &TM,
+                              const AArch64Subtarget &STI)
+      : TargetFrameLowering(StackGrowsDown, 16, 0, 16,
+                            false /*StackRealignable*/),
+        TM(TM) {}
+
+  void emitCalleeSavedFrameMoves(MachineBasicBlock &MBB,
+                                 MachineBasicBlock::iterator MBBI,
+                                 unsigned FramePtr) const;
+
+  void eliminateCallFramePseudoInstr(MachineFunction &MF,
+                                  MachineBasicBlock &MBB,
+                                  MachineBasicBlock::iterator I) const override;
+
+  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
+  /// the function.
+  void emitPrologue(MachineFunction &MF) const override;
+  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
+
+  int getFrameIndexOffset(const MachineFunction &MF, int FI) const override;
+  int getFrameIndexReference(const MachineFunction &MF, int FI,
+                             unsigned &FrameReg) const override;
+  int resolveFrameIndexReference(const MachineFunction &MF, int FI,
+                                 unsigned &FrameReg,
+                                 bool PreferFP = false) const;
+  bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
+                                 MachineBasicBlock::iterator MI,
+                                 const std::vector<CalleeSavedInfo> &CSI,
+                                 const TargetRegisterInfo *TRI) const override;
+
+  bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
+                                  MachineBasicBlock::iterator MI,
+                                  const std::vector<CalleeSavedInfo> &CSI,
+                                  const TargetRegisterInfo *TRI) const override;
+
+  /// \brief Can this function use the red zone for local allocations.
+  bool canUseRedZone(const MachineFunction &MF) const;
+
+  bool hasFP(const MachineFunction &MF) const override;
+  bool hasReservedCallFrame(const MachineFunction &MF) const override;
+
+  void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
+                                            RegScavenger *RS) const override;
+};
+
+} // End llvm namespace
+
+#endif