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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
//===-- CSKYMCCodeEmitter.cpp - CSKY Code Emitter interface ---------------===//
//
// 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 implements the CSKYMCCodeEmitter class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYMCCODEEMITTER_H
#define LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYMCCODEEMITTER_H
#include "MCTargetDesc/CSKYFixupKinds.h"
#include "MCTargetDesc/CSKYMCExpr.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
namespace llvm {
class MCInstrInfo;
class CSKYMCCodeEmitter : public MCCodeEmitter {
MCContext &Ctx;
const MCInstrInfo &MII;
public:
CSKYMCCodeEmitter(MCContext &Ctx, const MCInstrInfo &MII)
: Ctx(Ctx), MII(MII) {}
~CSKYMCCodeEmitter() {}
void encodeInstruction(const MCInst &Inst, raw_ostream &OS,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const override;
// Generated by tablegen.
uint64_t getBinaryCodeForInstr(const MCInst &MI,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
// Default encoding method used by tablegen.
unsigned getMachineOpValue(const MCInst &MI, const MCOperand &MO,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
template <int shift = 0>
unsigned getImmOpValue(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const {
const MCOperand &MO = MI.getOperand(Idx);
if (MO.isImm())
return (MO.getImm() >> shift);
assert(MO.isExpr() && "Unexpected MO type.");
MCFixupKind Kind = getTargetFixup(MO.getExpr());
Fixups.push_back(MCFixup::create(0, MO.getExpr(), Kind, MI.getLoc()));
return 0;
}
unsigned getRegSeqImmOpValue(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
unsigned getRegisterSeqOpValue(const MCInst &MI, unsigned Op,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
unsigned getOImmOpValue(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
unsigned getImmOpValueIDLY(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
unsigned getImmJMPIX(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
unsigned getImmOpValueMSBSize(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
unsigned getImmShiftOpValue(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const {
const MCOperand &MO = MI.getOperand(Idx);
assert(MO.isImm() && "Unexpected MO type.");
return 1 << MO.getImm();
}
MCFixupKind getTargetFixup(const MCExpr *Expr) const;
template <llvm::CSKY::Fixups FIXUP>
unsigned getBranchSymbolOpValue(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const {
const MCOperand &MO = MI.getOperand(Idx);
if (MO.isImm())
return MO.getImm() >> 1;
assert(MO.isExpr() && "Unexpected MO type.");
MCFixupKind Kind = MCFixupKind(FIXUP);
if (MO.getExpr()->getKind() == MCExpr::Target)
Kind = getTargetFixup(MO.getExpr());
Fixups.push_back(MCFixup::create(0, MO.getExpr(), Kind, MI.getLoc()));
return 0;
}
template <llvm::CSKY::Fixups FIXUP>
unsigned getConstpoolSymbolOpValue(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const {
const MCOperand &MO = MI.getOperand(Idx);
assert(MO.isExpr() && "Unexpected MO type.");
MCFixupKind Kind = MCFixupKind(FIXUP);
if (MO.getExpr()->getKind() == MCExpr::Target)
Kind = getTargetFixup(MO.getExpr());
Fixups.push_back(MCFixup::create(0, MO.getExpr(), Kind, MI.getLoc()));
return 0;
}
template <llvm::CSKY::Fixups FIXUP>
unsigned getDataSymbolOpValue(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const {
const MCOperand &MO = MI.getOperand(Idx);
assert(MO.isExpr() && "Unexpected MO type.");
MCFixupKind Kind = MCFixupKind(FIXUP);
if (MO.getExpr()->getKind() == MCExpr::Target)
Kind = getTargetFixup(MO.getExpr());
Fixups.push_back(MCFixup::create(0, MO.getExpr(), Kind, MI.getLoc()));
return 0;
}
unsigned getCallSymbolOpValue(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const {
const MCOperand &MO = MI.getOperand(Idx);
assert(MO.isExpr() && "Unexpected MO type.");
MCFixupKind Kind = MCFixupKind(CSKY::fixup_csky_pcrel_imm26_scale2);
if (MO.getExpr()->getKind() == MCExpr::Target)
Kind = getTargetFixup(MO.getExpr());
Fixups.push_back(MCFixup::create(0, MO.getExpr(), Kind, MI.getLoc()));
return 0;
}
unsigned getBareSymbolOpValue(const MCInst &MI, unsigned Idx,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const {
const MCOperand &MO = MI.getOperand(Idx);
assert(MO.isExpr() && "Unexpected MO type.");
MCFixupKind Kind = MCFixupKind(CSKY::fixup_csky_pcrel_imm18_scale2);
if (MO.getExpr()->getKind() == MCExpr::Target)
Kind = getTargetFixup(MO.getExpr());
Fixups.push_back(MCFixup::create(0, MO.getExpr(), Kind, MI.getLoc()));
return 0;
}
void expandJBTF(const MCInst &MI, raw_ostream &OS,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
void expandNEG(const MCInst &MI, raw_ostream &OS,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
void expandRSUBI(const MCInst &MI, raw_ostream &OS,
SmallVectorImpl<MCFixup> &Fixups,
const MCSubtargetInfo &STI) const;
};
} // namespace llvm
#endif // LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYMCCODEEMITTER_H
|
