LLVM 17.0.0git
CSKYAsmBackend.h
Go to the documentation of this file.
1//===-- CSKYAsmBackend.h - CSKY Assembler Backend -------------------------===//
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#ifndef LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H
10#define LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H
11
16
17namespace llvm {
18
20
21public:
23 : MCAsmBackend(support::little) {}
24
25 unsigned int getNumFixupKinds() const override {
27 }
28
29 void applyFixup(const MCAssembler &Asm, const MCFixup &Fixup,
31 uint64_t Value, bool IsResolved,
32 const MCSubtargetInfo *STI) const override;
33
34 const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const override;
35
38 const MCAsmLayout &Layout) const override;
39
40 void relaxInstruction(MCInst &Inst,
41 const MCSubtargetInfo &STI) const override;
42
43 bool mayNeedRelaxation(const MCInst &Inst,
44 const MCSubtargetInfo &STI) const override;
45
46 bool fixupNeedsRelaxationAdvanced(const MCFixup &Fixup, bool Resolved,
49 const MCAsmLayout &Layout,
50 const bool WasForced) const override;
51
52 bool writeNopData(raw_ostream &OS, uint64_t Count,
53 const MCSubtargetInfo *STI) const override;
54
55 bool shouldForceRelocation(const MCAssembler &Asm, const MCFixup &Fixup,
56 const MCValue &Target) override;
57
58 std::unique_ptr<MCObjectTargetWriter>
59 createObjectTargetWriter() const override;
60};
61} // namespace llvm
62
63#endif // LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H
static RegisterPass< DebugifyFunctionPass > DF("debugify-function", "Attach debug info to a function")
PowerPC TLS Dynamic Call Fixup
bool fixupNeedsRelaxationAdvanced(const MCFixup &Fixup, bool Resolved, uint64_t Value, const MCRelaxableFragment *DF, const MCAsmLayout &Layout, const bool WasForced) const override
Target specific predicate for whether a given fixup requires the associated instruction to be relaxed...
const MCFixupKindInfo & getFixupKindInfo(MCFixupKind Kind) const override
Get information on a fixup kind.
bool mayNeedRelaxation(const MCInst &Inst, const MCSubtargetInfo &STI) const override
Check whether the given instruction may need relaxation.
CSKYAsmBackend(const MCSubtargetInfo &STI, const MCTargetOptions &OP)
void applyFixup(const MCAssembler &Asm, const MCFixup &Fixup, const MCValue &Target, MutableArrayRef< char > Data, uint64_t Value, bool IsResolved, const MCSubtargetInfo *STI) const override
Apply the Value for given Fixup into the provided data fragment, at the offset specified by the fixup...
bool shouldForceRelocation(const MCAssembler &Asm, const MCFixup &Fixup, const MCValue &Target) override
Hook to check if a relocation is needed for some target specific reason.
bool fixupNeedsRelaxation(const MCFixup &Fixup, uint64_t Value, const MCRelaxableFragment *DF, const MCAsmLayout &Layout) const override
Simple predicate for targets where !Resolved implies requiring relaxation.
void relaxInstruction(MCInst &Inst, const MCSubtargetInfo &STI) const override
Relax the instruction in the given fragment to the next wider instruction.
unsigned int getNumFixupKinds() const override
Get the number of target specific fixup kinds.
std::unique_ptr< MCObjectTargetWriter > createObjectTargetWriter() const override
bool writeNopData(raw_ostream &OS, uint64_t Count, const MCSubtargetInfo *STI) const override
Write an (optimal) nop sequence of Count bytes to the given output.
Generic interface to target specific assembler backends.
Definition: MCAsmBackend.h:41
Encapsulates the layout of an assembly file at a particular point in time.
Definition: MCAsmLayout.h:28
Encode information on a single operation to perform on a byte sequence (e.g., an encoded instruction)...
Definition: MCFixup.h:71
Instances of this class represent a single low-level machine instruction.
Definition: MCInst.h:184
A relaxable fragment holds on to its MCInst, since it may need to be relaxed during the assembler lay...
Definition: MCFragment.h:270
Generic base class for all target subtargets.
This represents an "assembler immediate".
Definition: MCValue.h:36
MutableArrayRef - Represent a mutable reference to an array (0 or more elements consecutively in memo...
Definition: ArrayRef.h:305
Target - Wrapper for Target specific information.
LLVM Value Representation.
Definition: Value.h:74
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition: raw_ostream.h:52
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
MCFixupKind
Extensible enumeration to represent the type of a fixup.
Definition: MCFixup.h:21
#define OP(n)
Definition: regex2.h:73
Target independent information on a fixup kind.