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
70