LLVM  11.0.0git
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  // SRetReturnReg - Lanai ABI require that sret lowering includes
28  // returning the value of the returned struct in a register. This field
29  // holds the virtual register into which the sret argument is passed.
30  Register SRetReturnReg;
31 
32  // GlobalBaseReg - keeps track of the virtual register initialized for
33  // use as the global base register. This is used for PIC in some PIC
34  // relocation models.
35  Register GlobalBaseReg;
36 
37  // VarArgsFrameIndex - FrameIndex for start of varargs area.
38  int VarArgsFrameIndex;
39 
40 public:
42  : VarArgsFrameIndex(0) {}
43 
44  Register getSRetReturnReg() const { return SRetReturnReg; }
45  void setSRetReturnReg(Register Reg) { SRetReturnReg = Reg; }
46 
47  int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
48  void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
49 };
50 
51 } // namespace llvm
52 
53 #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)
Wrapper class representing virtual and physical registers.
Definition: Register.h:19