llvm/lib/Target/LoongArch/LoongArchMachineFunctionInfo.h

   1 //=- LoongArchMachineFunctionInfo.h - LoongArch machine function info -----===//
   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 LoongArch-specific per-machine-function information.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHMACHINEFUNCTIONINFO_H
  14 #define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHMACHINEFUNCTIONINFO_H
  15
  16 #include "LoongArchSubtarget.h"
  17 #include "llvm/CodeGen/MachineFrameInfo.h"
  18 #include "llvm/CodeGen/MachineFunction.h"
  19
  20 namespace llvm {
  21
  22 /// LoongArchMachineFunctionInfo - This class is derived from
  23 /// MachineFunctionInfo and contains private LoongArch-specific information for
  24 /// each MachineFunction.
  25 class LoongArchMachineFunctionInfo : public MachineFunctionInfo {
  26 private:
  27   /// FrameIndex for start of varargs area
  28   int VarArgsFrameIndex = 0;
  29   /// Size of the save area used for varargs
  30   int VarArgsSaveSize = 0;
  31
  32   /// Size of stack frame to save callee saved registers
  33   unsigned CalleeSavedStackSize = 0;
  34
  35   /// FrameIndex of the spill slot when there is no scavenged register in
  36   /// insertIndirectBranch.
  37   int BranchRelaxationSpillFrameIndex = -1;
  38
  39 public:
  40   LoongArchMachineFunctionInfo(const Function &F,
  41                                const TargetSubtargetInfo *STI) {}
  42
  43   MachineFunctionInfo *
  44   clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF,
  45         const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB)
  46       const override {
  47     return DestMF.cloneInfo<LoongArchMachineFunctionInfo>(*this);
  48   }
  49
  50   int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
  51   void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
  52
  53   unsigned getVarArgsSaveSize() const { return VarArgsSaveSize; }
  54   void setVarArgsSaveSize(int Size) { VarArgsSaveSize = Size; }
  55
  56   unsigned getCalleeSavedStackSize() const { return CalleeSavedStackSize; }
  57   void setCalleeSavedStackSize(unsigned Size) { CalleeSavedStackSize = Size; }
  58
  59   int getBranchRelaxationSpillFrameIndex() {
  60     return BranchRelaxationSpillFrameIndex;
  61   }
  62   void setBranchRelaxationSpillFrameIndex(int Index) {
  63     BranchRelaxationSpillFrameIndex = Index;
  64   }
  65 };
  66
  67 } // end namespace llvm
  68
  69 #endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHMACHINEFUNCTIONINFO_H