1 //===-- Mips16FrameLowering.h - Mips16 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_MIPS16FRAMELOWERING_H
15 #define LLVM_LIB_TARGET_MIPS_MIPS16FRAMELOWERING_H
16 
17 #include "MipsFrameLowering.h"
18 
19 namespace llvm {
20 class Mips16FrameLowering : public MipsFrameLowering {
21 public:
22   explicit Mips16FrameLowering(const MipsSubtarget &STI);
23 
24   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
25   /// the function.
26   void emitPrologue(MachineFunction &MF) const override;
27   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
28 
29   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
30                                  MachineBasicBlock::iterator MI,
31                                  const std::vector<CalleeSavedInfo> &CSI,
32                                  const TargetRegisterInfo *TRI) const override;
33 
34   bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
35                                   MachineBasicBlock::iterator MI,
36                                   const std::vector<CalleeSavedInfo> &CSI,
37                                   const TargetRegisterInfo *TRI) const override;
38 
39   bool hasReservedCallFrame(const MachineFunction &MF) const override;
40 
41   void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
42                                             RegScavenger *RS) const override;
43 };
44 
45 } // End llvm namespace
46 
47 #endif
48