1//=== MSP430MachineFunctionInfo.h - MSP430 machine function info -*- 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// This file declares MSP430-specific per-machine-function information.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_MSP430_MSP430MACHINEFUNCTIONINFO_H
14#define LLVM_LIB_TARGET_MSP430_MSP430MACHINEFUNCTIONINFO_H
15
16#include "llvm/CodeGen/MachineFunction.h"
17
18namespace llvm {
19
20/// MSP430MachineFunctionInfo - This class is derived from MachineFunction and
21/// contains private MSP430 target-specific information for each MachineFunction.
22class MSP430MachineFunctionInfo : public MachineFunctionInfo {
23  virtual void anchor();
24
25  /// CalleeSavedFrameSize - Size of the callee-saved register portion of the
26  /// stack frame in bytes.
27  unsigned CalleeSavedFrameSize = 0;
28
29  /// ReturnAddrIndex - FrameIndex for return slot.
30  int ReturnAddrIndex = 0;
31
32  /// VarArgsFrameIndex - FrameIndex for start of varargs area.
33  int VarArgsFrameIndex = 0;
34
35  /// SRetReturnReg - Some subtargets require that sret lowering includes
36  /// returning the value of the returned struct in a register. This field
37  /// holds the virtual register into which the sret argument is passed.
38  unsigned SRetReturnReg = 0;
39
40public:
41  MSP430MachineFunctionInfo() = default;
42
43  explicit MSP430MachineFunctionInfo(MachineFunction &MF)
44    : CalleeSavedFrameSize(0), ReturnAddrIndex(0), SRetReturnReg(0) {}
45
46  unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
47  void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
48
49  unsigned getSRetReturnReg() const { return SRetReturnReg; }
50  void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
51
52  int getRAIndex() const { return ReturnAddrIndex; }
53  void setRAIndex(int Index) { ReturnAddrIndex = Index; }
54
55  int getVarArgsFrameIndex() const { return VarArgsFrameIndex;}
56  void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
57};
58
59} // End llvm namespace
60
61#endif
62