lib/Target/Mips/Mips16FrameLowering.h

   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, MachineBasicBlock &MBB) 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