1//===- MipsOptionRecord.h - Abstraction for storing information -*- C++ -*-===//
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// MipsOptionRecord - Abstraction for storing arbitrary information in
10// ELF files. Arbitrary information (e.g. register usage) can be stored in Mips
11// specific ELF sections like .Mips.options. Specific records should subclass
12// MipsOptionRecord and provide an implementation to EmitMipsOptionRecord which
13// basically just dumps the information into an ELF section. More information
14// about .Mips.option can be found in the SysV ABI and the 64-bit ELF Object
15// specification.
16//
17//===----------------------------------------------------------------------===//
18
19#ifndef LLVM_LIB_TARGET_MIPS_MIPSOPTIONRECORD_H
20#define LLVM_LIB_TARGET_MIPS_MIPSOPTIONRECORD_H
21
22#include "MCTargetDesc/MipsMCTargetDesc.h"
23#include "llvm/MC/MCContext.h"
24#include "llvm/MC/MCRegisterInfo.h"
25#include <cstdint>
26
27namespace llvm {
28
29class MipsELFStreamer;
30
31class MipsOptionRecord {
32public:
33 virtual ~MipsOptionRecord() = default;
34
35 virtual void EmitMipsOptionRecord() = 0;
36};
37
38class MipsRegInfoRecord : public MipsOptionRecord {
39public:
40 MipsRegInfoRecord(MipsELFStreamer *S, MCContext &Context)
41 : Streamer(S), Context(Context) {
42 ri_gprmask = 0;
43 ri_cprmask[0] = ri_cprmask[1] = ri_cprmask[2] = ri_cprmask[3] = 0;
44 ri_gp_value = 0;
45
46 const MCRegisterInfo *TRI = Context.getRegisterInfo();
47 GPR32RegClass = &(TRI->getRegClass(i: Mips::GPR32RegClassID));
48 GPR64RegClass = &(TRI->getRegClass(i: Mips::GPR64RegClassID));
49 FGR32RegClass = &(TRI->getRegClass(i: Mips::FGR32RegClassID));
50 FGR64RegClass = &(TRI->getRegClass(i: Mips::FGR64RegClassID));
51 AFGR64RegClass = &(TRI->getRegClass(i: Mips::AFGR64RegClassID));
52 MSA128BRegClass = &(TRI->getRegClass(i: Mips::MSA128BRegClassID));
53 COP0RegClass = &(TRI->getRegClass(i: Mips::COP0RegClassID));
54 COP2RegClass = &(TRI->getRegClass(i: Mips::COP2RegClassID));
55 COP3RegClass = &(TRI->getRegClass(i: Mips::COP3RegClassID));
56 }
57
58 ~MipsRegInfoRecord() override = default;
59
60 void EmitMipsOptionRecord() override;
61 void SetPhysRegUsed(unsigned Reg, const MCRegisterInfo *MCRegInfo);
62
63private:
64 MipsELFStreamer *Streamer;
65 MCContext &Context;
66 const MCRegisterClass *GPR32RegClass;
67 const MCRegisterClass *GPR64RegClass;
68 const MCRegisterClass *FGR32RegClass;
69 const MCRegisterClass *FGR64RegClass;
70 const MCRegisterClass *AFGR64RegClass;
71 const MCRegisterClass *MSA128BRegClass;
72 const MCRegisterClass *COP0RegClass;
73 const MCRegisterClass *COP2RegClass;
74 const MCRegisterClass *COP3RegClass;
75 uint32_t ri_gprmask;
76 uint32_t ri_cprmask[4];
77 int64_t ri_gp_value;
78};
79
80} // end namespace llvm
81
82#endif // LLVM_LIB_TARGET_MIPS_MIPSOPTIONRECORD_H
83