1 //===- LanaiMachineFuctionInfo.h - Lanai machine func info -------*- C++ -*-==//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares Lanai-specific per-machine-function information.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H
15 #define LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H
17 #include "LanaiRegisterInfo.h"
18 #include "llvm/CodeGen/MachineFunction.h"
19 #include "llvm/CodeGen/MachineRegisterInfo.h"
23 // LanaiMachineFunctionInfo - This class is derived from MachineFunction and
24 // contains private Lanai target-specific information for each MachineFunction.
25 class LanaiMachineFunctionInfo : public MachineFunctionInfo {
26 virtual void anchor();
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;
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
38 unsigned GlobalBaseReg;
40 // VarArgsFrameIndex - FrameIndex for start of varargs area.
41 int VarArgsFrameIndex;
44 explicit LanaiMachineFunctionInfo(MachineFunction &MF)
45 : MF(MF), SRetReturnReg(0), GlobalBaseReg(0), VarArgsFrameIndex(0) {}
47 unsigned getSRetReturnReg() const { return SRetReturnReg; }
48 void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
50 unsigned getGlobalBaseReg();
52 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
53 void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
58 #endif // LLVM_LIB_TARGET_LANAI_LANAIMACHINEFUNCTIONINFO_H