1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
//===-- BPFSubtarget.h - Define Subtarget for the BPF -----------*- C++ -*-===//
//
// 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 the BPF specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_BPF_BPFSUBTARGET_H
#define LLVM_LIB_TARGET_BPF_BPFSUBTARGET_H
#include "BPFFrameLowering.h"
#include "BPFISelLowering.h"
#include "BPFInstrInfo.h"
#include "BPFRegisterInfo.h"
#include "BPFSelectionDAGInfo.h"
#include "llvm/CodeGen/GlobalISel/CallLowering.h"
#include "llvm/CodeGen/GlobalISel/InstructionSelector.h"
#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
#include "llvm/CodeGen/RegisterBankInfo.h"
#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/Target/TargetMachine.h"
#define GET_SUBTARGETINFO_HEADER
#include "BPFGenSubtargetInfo.inc"
namespace llvm {
class StringRef;
class BPFSubtarget : public BPFGenSubtargetInfo {
virtual void anchor();
BPFInstrInfo InstrInfo;
BPFFrameLowering FrameLowering;
BPFTargetLowering TLInfo;
BPFSelectionDAGInfo TSInfo;
private:
void initializeEnvironment();
void initSubtargetFeatures(StringRef CPU, StringRef FS);
protected:
// unused
bool isDummyMode;
bool IsLittleEndian;
// whether the cpu supports jmp ext
bool HasJmpExt;
// whether the cpu supports jmp32 ext.
// NOTE: jmp32 is not enabled when alu32 enabled.
bool HasJmp32;
// whether the cpu supports alu32 instructions.
bool HasAlu32;
// whether we should enable MCAsmInfo DwarfUsesRelocationsAcrossSections
bool UseDwarfRIS;
// whether cpu v4 insns are enabled.
bool HasLdsx, HasMovsx, HasBswap, HasSdivSmod, HasGotol, HasStoreImm;
std::unique_ptr<CallLowering> CallLoweringInfo;
std::unique_ptr<InstructionSelector> InstSelector;
std::unique_ptr<LegalizerInfo> Legalizer;
std::unique_ptr<RegisterBankInfo> RegBankInfo;
public:
// This constructor initializes the data members to match that
// of the specified triple.
BPFSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS,
const TargetMachine &TM);
BPFSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
// ParseSubtargetFeatures - Parses features string setting specified
// subtarget options. Definition of function is auto generated by tblgen.
void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
bool getHasJmpExt() const { return HasJmpExt; }
bool getHasJmp32() const { return HasJmp32; }
bool getHasAlu32() const { return HasAlu32; }
bool getUseDwarfRIS() const { return UseDwarfRIS; }
bool hasLdsx() const { return HasLdsx; }
bool hasMovsx() const { return HasMovsx; }
bool hasBswap() const { return HasBswap; }
bool hasSdivSmod() const { return HasSdivSmod; }
bool hasGotol() const { return HasGotol; }
bool hasStoreImm() const { return HasStoreImm; }
bool isLittleEndian() const { return IsLittleEndian; }
const BPFInstrInfo *getInstrInfo() const override { return &InstrInfo; }
const BPFFrameLowering *getFrameLowering() const override {
return &FrameLowering;
}
const BPFTargetLowering *getTargetLowering() const override {
return &TLInfo;
}
const BPFSelectionDAGInfo *getSelectionDAGInfo() const override {
return &TSInfo;
}
const BPFRegisterInfo *getRegisterInfo() const override {
return &InstrInfo.getRegisterInfo();
}
const CallLowering *getCallLowering() const override;
InstructionSelector *getInstructionSelector() const override;
const LegalizerInfo *getLegalizerInfo() const override;
const RegisterBankInfo *getRegBankInfo() const override;
};
} // End llvm namespace
#endif
|
