LLVM  8.0.1
LanaiMachineFunctionInfo.h
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1 //===- LanaiMachineFuctionInfo.h - Lanai machine func info -------*- 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 // This file declares Lanai-specific per-machine-function information.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H
15 #define LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H
16 
17 #include "LanaiRegisterInfo.h"
20 
21 namespace llvm {
22 
23 // LanaiMachineFunctionInfo - This class is derived from MachineFunction and
24 // contains private Lanai target-specific information for each MachineFunction.
26  virtual void anchor();
27 
28  MachineFunction &MF;
29 
30  // SRetReturnReg - Lanai ABI require that sret lowering includes
31  // returning the value of the returned struct in a register. This field
32  // holds the virtual register into which the sret argument is passed.
33  unsigned SRetReturnReg;
34 
35  // GlobalBaseReg - keeps track of the virtual register initialized for
36  // use as the global base register. This is used for PIC in some PIC
37  // relocation models.
38  unsigned GlobalBaseReg;
39 
40  // VarArgsFrameIndex - FrameIndex for start of varargs area.
41  int VarArgsFrameIndex;
42 
43 public:
45  : MF(MF), SRetReturnReg(0), GlobalBaseReg(0), VarArgsFrameIndex(0) {}
46 
47  unsigned getSRetReturnReg() const { return SRetReturnReg; }
48  void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
49 
50  unsigned getGlobalBaseReg();
51 
52  int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
53  void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
54 };
55 
56 } // namespace llvm
57 
58 #endif // LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H
This class represents lattice values for constants.
Definition: AllocatorList.h:24
unsigned Reg
MachineFunctionInfo - This class can be derived from and used by targets to hold private target-speci...
LanaiMachineFunctionInfo(MachineFunction &MF)