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
|
//===-- ARMAsmBackend.h - ARM Assembler Backend -----------------*- 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_ARM_ARMASMBACKEND_H
#define LLVM_LIB_TARGET_ARM_ARMASMBACKEND_H
#include "MCTargetDesc/ARMFixupKinds.h"
#include "MCTargetDesc/ARMMCTargetDesc.h"
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
namespace llvm {
class ARMAsmBackend : public MCAsmBackend {
public:
ARMAsmBackend(const Target &T, llvm::endianness Endian)
: MCAsmBackend(Endian) {}
bool hasNOP(const MCSubtargetInfo *STI) const {
return STI->hasFeature(ARM::HasV6T2Ops);
}
std::optional<MCFixupKind> getFixupKind(StringRef Name) const override;
MCFixupKindInfo getFixupKindInfo(MCFixupKind Kind) const override;
bool shouldForceRelocation(const MCFixup &Fixup, const MCValue &Target);
unsigned adjustFixupValue(const MCAssembler &Asm, const MCFixup &Fixup,
const MCValue &Target, uint64_t Value,
bool IsResolved, MCContext &Ctx,
const MCSubtargetInfo *STI) const;
std::optional<bool> evaluateFixup(const MCFragment &, MCFixup &, MCValue &,
uint64_t &) override;
void applyFixup(const MCFragment &, const MCFixup &, const MCValue &Target,
uint8_t *Data, uint64_t Value, bool IsResolved) override;
unsigned getRelaxedOpcode(unsigned Op, const MCSubtargetInfo &STI) const;
bool mayNeedRelaxation(unsigned Opcode, ArrayRef<MCOperand> Operands,
const MCSubtargetInfo &STI) const override;
const char *reasonForFixupRelaxation(const MCFixup &Fixup,
uint64_t Value) const;
bool fixupNeedsRelaxationAdvanced(const MCFragment &, const MCFixup &,
const MCValue &, uint64_t,
bool) const override;
void relaxInstruction(MCInst &Inst,
const MCSubtargetInfo &STI) const override;
bool writeNopData(raw_ostream &OS, uint64_t Count,
const MCSubtargetInfo *STI) const override;
unsigned getPointerSize() const { return 4; }
};
} // end namespace llvm
#endif
|
