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diff --git a/contrib/llvm-project/llvm/lib/Target/Mips/MipsSEFrameLowering.h b/contrib/llvm-project/llvm/lib/Target/Mips/MipsSEFrameLowering.h
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index 000000000000..78ffe161d9c6
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+++ b/contrib/llvm-project/llvm/lib/Target/Mips/MipsSEFrameLowering.h
@@ -0,0 +1,52 @@
+//===- MipsSEFrameLowering.h - Mips32/64 frame lowering ---------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
+#define LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
+
+#include "MipsFrameLowering.h"
+#include <vector>
+
+namespace llvm {
+
+class MachineBasicBlock;
+class MachineFunction;
+class MipsSubtarget;
+
+class MipsSEFrameLowering : public MipsFrameLowering {
+public:
+  explicit MipsSEFrameLowering(const MipsSubtarget &STI);
+
+  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
+  /// the function.
+  void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
+  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
+
+  int getFrameIndexReference(const MachineFunction &MF, int FI,
+                             unsigned &FrameReg) const override;
+
+  bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
+                                 MachineBasicBlock::iterator MI,
+                                 const std::vector<CalleeSavedInfo> &CSI,
+                                 const TargetRegisterInfo *TRI) const override;
+
+  bool hasReservedCallFrame(const MachineFunction &MF) const override;
+
+  void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
+                            RegScavenger *RS) const override;
+
+private:
+  void emitInterruptEpilogueStub(MachineFunction &MF,
+                                 MachineBasicBlock &MBB) const;
+  void emitInterruptPrologueStub(MachineFunction &MF,
+                                 MachineBasicBlock &MBB) const;
+};
+
+} // end namespace llvm
+
+#endif // LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H