[InstCombine] Signed saturation patterns
[llvm-core.git] / lib / Target / Mips / Mips16FrameLowering.h
blob6b62453f8dfe9b4229dde0a1b38dd912382df1a6
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 //
11 //===----------------------------------------------------------------------===//
13 #ifndef LLVM_LIB_TARGET_MIPS_MIPS16FRAMELOWERING_H
14 #define LLVM_LIB_TARGET_MIPS_MIPS16FRAMELOWERING_H
16 #include "MipsFrameLowering.h"
18 namespace llvm {
19 class Mips16FrameLowering : public MipsFrameLowering {
20 public:
21 explicit Mips16FrameLowering(const MipsSubtarget &STI);
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;
28 bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
29 MachineBasicBlock::iterator MI,
30 const std::vector<CalleeSavedInfo> &CSI,
31 const TargetRegisterInfo *TRI) const override;
33 bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
34 MachineBasicBlock::iterator MI,
35 std::vector<CalleeSavedInfo> &CSI,
36 const TargetRegisterInfo *TRI) const override;
38 bool hasReservedCallFrame(const MachineFunction &MF) const override;
40 void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
41 RegScavenger *RS) const override;
44 } // End llvm namespace
46 #endif