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//=== MSP430MachineFunctionInfo.h - MSP430 machine function info -*- C++ -*-==//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares MSP430-specific per-machine-function information.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_MSP430_MSP430MACHINEFUNCTIONINFO_H
#define LLVM_LIB_TARGET_MSP430_MSP430MACHINEFUNCTIONINFO_H
#include "llvm/CodeGen/MachineFunction.h"
namespace llvm {
/// MSP430MachineFunctionInfo - This class is derived from MachineFunction and
/// contains private MSP430 target-specific information for each MachineFunction.
class MSP430MachineFunctionInfo : public MachineFunctionInfo {
virtual void anchor();
/// CalleeSavedFrameSize - Size of the callee-saved register portion of the
/// stack frame in bytes.
unsigned CalleeSavedFrameSize = 0;
/// ReturnAddrIndex - FrameIndex for return slot.
int ReturnAddrIndex = 0;
/// VarArgsFrameIndex - FrameIndex for start of varargs area.
int VarArgsFrameIndex = 0;
/// SRetReturnReg - Some subtargets require that sret lowering includes
/// returning the value of the returned struct in a register. This field
/// holds the virtual register into which the sret argument is passed.
Register SRetReturnReg;
public:
MSP430MachineFunctionInfo() = default;
MSP430MachineFunctionInfo(const Function &F, const TargetSubtargetInfo *STI)
: CalleeSavedFrameSize(0), ReturnAddrIndex(0), SRetReturnReg(0) {}
MachineFunctionInfo *
clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF,
const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB)
const override;
unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
Register getSRetReturnReg() const { return SRetReturnReg; }
void setSRetReturnReg(Register Reg) { SRetReturnReg = Reg; }
int getRAIndex() const { return ReturnAddrIndex; }
void setRAIndex(int Index) { ReturnAddrIndex = Index; }
int getVarArgsFrameIndex() const { return VarArgsFrameIndex;}
void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
};
} // End llvm namespace
#endif
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