9#ifndef LLVM_LIB_TARGET_RISCV_MCTARGETDESC_RISCVASMBACKEND_H
10#define LLVM_LIB_TARGET_RISCV_MCTARGETDESC_RISCVASMBACKEND_H
21class MCObjectTargetWriter;
28 bool ForceRelocs =
false;
44 unsigned &
Size)
override;
58 uint64_t &FixedValue)
const override;
65 std::unique_ptr<MCObjectTargetWriter>
82 const bool WasForced)
const override;
100 bool &WasRelaxed)
const override;
102 bool &WasRelaxed)
const override;
104 int64_t &
Value)
const override;
static RegisterPass< DebugifyFunctionPass > DF("debugify-function", "Attach debug info to a function")
PowerPC TLS Dynamic Call Fixup
This class represents an Operation in the Expression.
Generic interface to target specific assembler backends.
Encapsulates the layout of an assembly file at a particular point in time.
Encode information on a single operation to perform on a byte sequence (e.g., an encoded instruction)...
Instances of this class represent a single low-level machine instruction.
A relaxable fragment holds on to its MCInst, since it may need to be relaxed during the assembler lay...
Generic base class for all target subtargets.
const Triple & getTargetTriple() const
const FeatureBitset & getFeatureBits() const
This represents an "assembler immediate".
MutableArrayRef - Represent a mutable reference to an array (0 or more elements consecutively in memo...
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.
std::unique_ptr< MCObjectTargetWriter > createObjectTargetWriter() const override
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...
void relaxInstruction(MCInst &Inst, const MCSubtargetInfo &STI) const override
Relax the instruction in the given fragment to the next wider instruction.
bool shouldInsertFixupForCodeAlign(MCAssembler &Asm, const MCAsmLayout &Layout, MCAlignFragment &AF) override
Hook which indicates if the target requires a fixup to be generated when handling an align directive ...
bool relaxDwarfLineAddr(MCDwarfLineAddrFragment &DF, MCAsmLayout &Layout, bool &WasRelaxed) const override
bool relaxDwarfCFA(MCDwarfCallFrameFragment &DF, MCAsmLayout &Layout, bool &WasRelaxed) const override
RISCVAsmBackend(const MCSubtargetInfo &STI, uint8_t OSABI, bool Is64Bit, const MCTargetOptions &Options)
const MCTargetOptions & getTargetOptions() const
const MCFixupKindInfo & getFixupKindInfo(MCFixupKind Kind) const override
Get information on a fixup kind.
bool shouldInsertExtraNopBytesForCodeAlign(const MCAlignFragment &AF, unsigned &Size) override
Hook to check if extra nop bytes must be inserted for alignment directive.
bool mayNeedRelaxation(const MCInst &Inst, const MCSubtargetInfo &STI) const override
Check whether the given instruction may need relaxation.
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.
bool handleAddSubRelocations(const MCAsmLayout &Layout, const MCFragment &F, const MCFixup &Fixup, const MCValue &Target, uint64_t &FixedValue) const override
unsigned getRelaxedOpcode(unsigned Op) const
bool evaluateTargetFixup(const MCAssembler &Asm, const MCAsmLayout &Layout, const MCFixup &Fixup, const MCFragment *DF, const MCValue &Target, const MCSubtargetInfo *STI, uint64_t &Value, bool &WasForced) override
bool relaxLEB128(MCLEBFragment &LF, MCAsmLayout &Layout, int64_t &Value) const override
bool shouldForceRelocation(const MCAssembler &Asm, const MCFixup &Fixup, const MCValue &Target, const MCSubtargetInfo *STI) override
Hook to check if a relocation is needed for some target specific reason.
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...
unsigned getNumFixupKinds() const override
Get the number of target specific fixup kinds.
~RISCVAsmBackend() override=default
std::optional< MCFixupKind > getFixupKind(StringRef Name) const override
Map a relocation name used in .reloc to a fixup kind.
StringRef - Represent a constant reference to a string, i.e.
Target - Wrapper for Target specific information.
LLVM Value Representation.
This class implements an extremely fast bulk output stream that can only output to a stream.
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
void validate(const Triple &TT, const FeatureBitset &FeatureBits)
This is an optimization pass for GlobalISel generic memory operations.
MCFixupKind
Extensible enumeration to represent the type of a fixup.
Target independent information on a fixup kind.