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//=- LoongArchMachineFunctionInfo.h - LoongArch machine function info -----===//
//
// 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 LoongArch-specific per-machine-function information.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHMACHINEFUNCTIONINFO_H
#define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHMACHINEFUNCTIONINFO_H
#include "LoongArchSubtarget.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
namespace llvm {
/// LoongArchMachineFunctionInfo - This class is derived from
/// MachineFunctionInfo and contains private LoongArch-specific information for
/// each MachineFunction.
class LoongArchMachineFunctionInfo : public MachineFunctionInfo {
private:
/// FrameIndex for start of varargs area
int VarArgsFrameIndex = 0;
/// Size of the save area used for varargs
int VarArgsSaveSize = 0;
/// Size of stack frame to save callee saved registers
unsigned CalleeSavedStackSize = 0;
/// FrameIndex of the spill slot when there is no scavenged register in
/// insertIndirectBranch.
int BranchRelaxationSpillFrameIndex = -1;
/// Registers that have been sign extended from i32.
SmallVector<Register, 8> SExt32Registers;
/// Pairs of `jr` instructions and corresponding JTI operands, used for the
/// `annotate-tablejump` option.
SmallVector<std::pair<MachineInstr *, int>, 4> JumpInfos;
public:
LoongArchMachineFunctionInfo(const Function &F,
const TargetSubtargetInfo *STI) {}
MachineFunctionInfo *
clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF,
const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB)
const override {
return DestMF.cloneInfo<LoongArchMachineFunctionInfo>(*this);
}
int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
unsigned getVarArgsSaveSize() const { return VarArgsSaveSize; }
void setVarArgsSaveSize(int Size) { VarArgsSaveSize = Size; }
unsigned getCalleeSavedStackSize() const { return CalleeSavedStackSize; }
void setCalleeSavedStackSize(unsigned Size) { CalleeSavedStackSize = Size; }
int getBranchRelaxationSpillFrameIndex() {
return BranchRelaxationSpillFrameIndex;
}
void setBranchRelaxationSpillFrameIndex(int Index) {
BranchRelaxationSpillFrameIndex = Index;
}
void addSExt32Register(Register Reg) { SExt32Registers.push_back(Reg); }
bool isSExt32Register(Register Reg) const {
return is_contained(SExt32Registers, Reg);
}
void setJumpInfo(MachineInstr *JrMI, int JTIIdx) {
JumpInfos.push_back(std::make_pair(JrMI, JTIIdx));
}
unsigned getJumpInfoSize() { return JumpInfos.size(); }
MachineInstr *getJumpInfoJrMI(unsigned Idx) { return JumpInfos[Idx].first; }
int getJumpInfoJTIIndex(unsigned Idx) { return JumpInfos[Idx].second; }
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHMACHINEFUNCTIONINFO_H
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