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
20namespace llvm {
21
22/// LoongArchMachineFunctionInfo - This class is derived from
23/// MachineFunctionInfo and contains private LoongArch-specific information for
24/// each MachineFunction.
25class LoongArchMachineFunctionInfo : public MachineFunctionInfo {
26private:
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 /// Registers that have been sign extended from i32.
40 SmallVector<Register, 8> SExt32Registers;
41
42public:
43 LoongArchMachineFunctionInfo(const Function &F,
44 const TargetSubtargetInfo *STI) {}
45
46 MachineFunctionInfo *
47 clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF,
48 const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB)
49 const override {
50 return DestMF.cloneInfo<LoongArchMachineFunctionInfo>(Old: *this);
51 }
52
53 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
54 void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
55
56 unsigned getVarArgsSaveSize() const { return VarArgsSaveSize; }
57 void setVarArgsSaveSize(int Size) { VarArgsSaveSize = Size; }
58
59 unsigned getCalleeSavedStackSize() const { return CalleeSavedStackSize; }
60 void setCalleeSavedStackSize(unsigned Size) { CalleeSavedStackSize = Size; }
61
62 int getBranchRelaxationSpillFrameIndex() {
63 return BranchRelaxationSpillFrameIndex;
64 }
65 void setBranchRelaxationSpillFrameIndex(int Index) {
66 BranchRelaxationSpillFrameIndex = Index;
67 }
68
69 void addSExt32Register(Register Reg) { SExt32Registers.push_back(Elt: Reg); }
70
71 bool isSExt32Register(Register Reg) const {
72 return is_contained(Range: SExt32Registers, Element: Reg);
73 }
74};
75
76} // end namespace llvm
77
78#endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHMACHINEFUNCTIONINFO_H
79