llvm/lib/Target/Mips/Mips16FrameLowering.h

   1 //===-- Mips16FrameLowering.h - Mips16 frame lowering  ----------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 //
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_LIB_TARGET_MIPS_MIPS16FRAMELOWERING_H
  14 #define LLVM_LIB_TARGET_MIPS_MIPS16FRAMELOWERING_H
  15
  16 #include "MipsFrameLowering.h"
  17
  18 namespace llvm {
  19 class Mips16FrameLowering : public MipsFrameLowering {
  20 public:
  21   explicit Mips16FrameLowering(const MipsSubtarget &STI);
  22
  23   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
  24   /// the function.
  25   void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  26   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  27
  28   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
  29                                  MachineBasicBlock::iterator MI,
  30                                  ArrayRef<CalleeSavedInfo> CSI,
  31                                  const TargetRegisterInfo *TRI) const override;
  32
  33   bool
  34   restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
  35                               MachineBasicBlock::iterator MI,
  36                               MutableArrayRef<CalleeSavedInfo> CSI,
  37                               const TargetRegisterInfo *TRI) const override;
  38
  39   bool hasReservedCallFrame(const MachineFunction &MF) const override;
  40
  41   void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
  42                             RegScavenger *RS) const override;
  43 };
  44
  45 } // End llvm namespace
  46
  47 #endif