1 //===-- MipsSEFrameLowering.h - Mips32/64 frame lowering --------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 //
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
15 #define LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
16 
17 #include "MipsFrameLowering.h"
18 
19 namespace llvm {
20 
21 class MipsSEFrameLowering : public MipsFrameLowering {
22 public:
23   explicit MipsSEFrameLowering(const MipsSubtarget &STI);
24 
25   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
26   /// the function.
27   void emitPrologue(MachineFunction &MF) const override;
28   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
29 
30   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
31                                  MachineBasicBlock::iterator MI,
32                                  const std::vector<CalleeSavedInfo> &CSI,
33                                  const TargetRegisterInfo *TRI) const override;
34 
35   bool hasReservedCallFrame(const MachineFunction &MF) const override;
36 
37   void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
38                                             RegScavenger *RS) const override;
39   unsigned ehDataReg(unsigned I) const;
40 };
41 
42 } // End llvm namespace
43 
44 #endif
45