SparcMachineFunctionInfo.h

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//===- SparcMachineFunctionInfo.h - Sparc 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  Sparc specific per-machine-function information.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_SPARC_SPARCMACHINEFUNCTIONINFO_H
#define LLVM_LIB_TARGET_SPARC_SPARCMACHINEFUNCTIONINFO_H
 
#include "llvm/CodeGen/MachineFunction.h"
 
namespace llvm {
 
  class SparcMachineFunctionInfo : public MachineFunctionInfo {
    virtual void anchor();
  private:
    Register GlobalBaseReg;
 
    /// VarArgsFrameOffset - Frame offset to start of varargs area.
    int VarArgsFrameOffset;
 
    /// SRetReturnReg - Holds the virtual register into which the sret
    /// argument is passed.
    Register SRetReturnReg;
 
    /// IsLeafProc - True if the function is a leaf procedure.
    bool IsLeafProc;
 
    /// IsLeafProc - True if the function is larger than the coverage of `ba`
    /// instruction.
    bool IsLargeProc = false;
 
    /// BranchRelaxationSpillFrameIndex - FrameIndex of the spill slot when
    /// there is no scavenged register in insertIndirectBranch.
    int BranchRelaxationSpillFrameIndex = -1;
 
  public:
    SparcMachineFunctionInfo()
      : GlobalBaseReg(0), VarArgsFrameOffset(0), SRetReturnReg(0),
        IsLeafProc(false) {}
    SparcMachineFunctionInfo(const Function &F, const TargetSubtargetInfo *STI)
        : GlobalBaseReg(0), VarArgsFrameOffset(0), SRetReturnReg(0),
          IsLeafProc(false) {}
 
    MachineFunctionInfo *
    clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF,
          const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB)
        const override;
 
    Register getGlobalBaseReg() const { return GlobalBaseReg; }
    void setGlobalBaseReg(Register Reg) { GlobalBaseReg = Reg; }
 
    int getVarArgsFrameOffset() const { return VarArgsFrameOffset; }
    void setVarArgsFrameOffset(int Offset) { VarArgsFrameOffset = Offset; }
 
    Register getSRetReturnReg() const { return SRetReturnReg; }
    void setSRetReturnReg(Register Reg) { SRetReturnReg = Reg; }
 
    void setLeafProc(bool rhs) { IsLeafProc = rhs; }
    bool isLeafProc() const { return IsLeafProc; }
 
    void setLargeProc(bool rhs) { IsLargeProc = rhs; }
    bool isLargeProc() const { return IsLargeProc; }
 
    int getBranchRelaxationSpillFrameIndex() {
      return BranchRelaxationSpillFrameIndex;
    }
    void setBranchRelaxationSpillFrameIndex(int Index) {
      BranchRelaxationSpillFrameIndex = Index;
    }
  };
}
 
#endif