LLVM  10.0.0svn
LanaiMachineFunctionInfo.h
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1 //===- LanaiMachineFuctionInfo.h - Lanai machine func 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 Lanai-specific per-machine-function information.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H
14 #define LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H
15 
16 #include "LanaiRegisterInfo.h"
19 
20 namespace llvm {
21 
22 // LanaiMachineFunctionInfo - This class is derived from MachineFunction and
23 // contains private Lanai target-specific information for each MachineFunction.
25  virtual void anchor();
26 
27  MachineFunction &MF;
28 
29  // SRetReturnReg - Lanai ABI require that sret lowering includes
30  // returning the value of the returned struct in a register. This field
31  // holds the virtual register into which the sret argument is passed.
32  unsigned SRetReturnReg;
33 
34  // GlobalBaseReg - keeps track of the virtual register initialized for
35  // use as the global base register. This is used for PIC in some PIC
36  // relocation models.
37  unsigned GlobalBaseReg;
38 
39  // VarArgsFrameIndex - FrameIndex for start of varargs area.
40  int VarArgsFrameIndex;
41 
42 public:
44  : MF(MF), SRetReturnReg(0), GlobalBaseReg(0), VarArgsFrameIndex(0) {}
45 
46  unsigned getSRetReturnReg() const { return SRetReturnReg; }
47  void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
48 
49  unsigned getGlobalBaseReg();
50 
51  int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
52  void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
53 };
54 
55 } // namespace llvm
56 
57 #endif // LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H
This class represents lattice values for constants.
Definition: AllocatorList.h:23
unsigned Reg
MachineFunctionInfo - This class can be derived from and used by targets to hold private target-speci...
LanaiMachineFunctionInfo(MachineFunction &MF)