#include "Target/Xtensa/XtensaAsmPrinter.h"

Inheritance diagram for llvm::XtensaAsmPrinter:

[legend]

Public Member Functions
	XtensaAsmPrinter (TargetMachine &TM, std::unique_ptr< MCStreamer > Streamer)

StringRef	getPassName () const override
	getPassName - Return a nice clean name for a pass.

void	emitInstruction (const MachineInstr *MI) override
	Targets should implement this to emit instructions.

void	emitConstantPool () override
	Print to the current output stream assembly representations of the constants in the constant pool MCP.

void	emitMachineConstantPoolEntry (const MachineConstantPoolEntry &CPE, int i)

void	emitMachineConstantPoolValue (MachineConstantPoolValue *MCPV) override

MCSymbol *	GetConstantPoolIndexSymbol (const MachineOperand &MO) const

MCSymbol *	GetJumpTableSymbol (const MachineOperand &MO) const

MCOperand	LowerSymbolOperand (const MachineOperand &MO, MachineOperand::MachineOperandType MOTy, unsigned Offset) const

void	lowerToMCInst (const MachineInstr *MI, MCInst &OutMI) const

MCOperand	lowerOperand (const MachineOperand &MO, unsigned Offset=0) const

Public Member Functions inherited from llvm::AsmPrinter
	~AsmPrinter () override

DwarfDebug *	getDwarfDebug ()

DwarfDebug *	getDwarfDebug () const

uint16_t	getDwarfVersion () const

void	setDwarfVersion (uint16_t Version)

bool	isDwarf64 () const

unsigned int	getDwarfOffsetByteSize () const
	Returns 4 for DWARF32 and 8 for DWARF64.

unsigned int	getUnitLengthFieldByteSize () const
	Returns 4 for DWARF32 and 12 for DWARF64.

dwarf::FormParams	getDwarfFormParams () const
	Returns information about the byte size of DW_FORM values.

bool	isPositionIndependent () const

bool	isVerbose () const
	Return true if assembly output should contain comments.

unsigned	getFunctionNumber () const
	Return a unique ID for the current function.

virtual const MCSymbol *	getFunctionFrameSymbol () const
	Return symbol for the function pseudo stack if the stack frame is not a register based.

MCSymbol *	getFunctionBegin () const

MCSymbol *	getFunctionEnd () const

MCSymbol *	getMBBExceptionSym (const MachineBasicBlock &MBB)

MCSymbol *	getAddrLabelSymbol (const BasicBlock *BB)
	Return the symbol to be used for the specified basic block when its address is taken.

ArrayRef< MCSymbol * >	getAddrLabelSymbolToEmit (const BasicBlock *BB)
	Return the symbol to be used for the specified basic block when its address is taken.

void	takeDeletedSymbolsForFunction (const Function F, std::vector< MCSymbol > &Result)
	If the specified function has had any references to address-taken blocks generated, but the block got deleted, return the symbol now so we can emit it.

const TargetLoweringObjectFile &	getObjFileLowering () const
	Return information about object file lowering.

const DataLayout &	getDataLayout () const
	Return information about data layout.

unsigned	getPointerSize () const
	Return the pointer size from the TargetMachine.

const MCSubtargetInfo &	getSubtargetInfo () const
	Return information about subtarget.

void	EmitToStreamer (MCStreamer &S, const MCInst &Inst)

void	emitInitialRawDwarfLocDirective (const MachineFunction &MF)
	Emits inital debug location directive.

const MCSection *	getCurrentSection () const
	Return the current section we are emitting to.

void	getNameWithPrefix (SmallVectorImpl< char > &Name, const GlobalValue *GV) const

MCSymbol *	getSymbol (const GlobalValue *GV) const

MCSymbol *	getSymbolPreferLocal (const GlobalValue &GV) const
	Similar to getSymbol() but preferred for references.

bool	doesDwarfUseRelocationsAcrossSections () const

void	setDwarfUsesRelocationsAcrossSections (bool Enable)

void	recordSled (MCSymbol *Sled, const MachineInstr &MI, SledKind Kind, uint8_t Version=0)

void	emitXRayTable ()
	Emit a table with all XRay instrumentation points.

void	emitPatchableFunctionEntries ()

void	getAnalysisUsage (AnalysisUsage &AU) const override
	Record analysis usage.

bool	doInitialization (Module &M) override
	Set up the AsmPrinter when we are working on a new module.

bool	doFinalization (Module &M) override
	Shut down the asmprinter.

bool	runOnMachineFunction (MachineFunction &MF) override
	Emit the specified function out to the OutStreamer.

virtual void	SetupMachineFunction (MachineFunction &MF)
	This should be called when a new MachineFunction is being processed from runOnMachineFunction.

void	emitFunctionBody ()
	This method emits the body and trailer for a function.

void	emitCFIInstruction (const MachineInstr &MI)

void	emitFrameAlloc (const MachineInstr &MI)

void	emitStackSizeSection (const MachineFunction &MF)

void	emitStackUsage (const MachineFunction &MF)

void	emitBBAddrMapSection (const MachineFunction &MF)

void	emitKCFITrapEntry (const MachineFunction &MF, const MCSymbol *Symbol)

virtual void	emitKCFITypeId (const MachineFunction &MF)

void	emitPseudoProbe (const MachineInstr &MI)

void	emitRemarksSection (remarks::RemarkStreamer &RS)

void	emitPCSectionsLabel (const MachineFunction &MF, const MDNode &MD)
	Emits a label as reference for PC sections.

void	emitPCSections (const MachineFunction &MF)
	Emits the PC sections collected from instructions.

CFISection	getFunctionCFISectionType (const Function &F) const
	Get the CFISection type for a function.

CFISection	getFunctionCFISectionType (const MachineFunction &MF) const
	Get the CFISection type for a function.

CFISection	getModuleCFISectionType () const
	Get the CFISection type for the module.

bool	hasDebugInfo () const
	Returns true if valid debug info is present.

bool	needsSEHMoves ()

bool	usesCFIWithoutEH () const
	Since emitting CFI unwind information is entangled with supporting the exceptions, this returns true for platforms which use CFI unwind information for other purposes (debugging, sanitizers, ...) when `MCAsmInfo::ExceptionsType == ExceptionHandling::None`.

virtual void	emitConstantPool ()
	Print to the current output stream assembly representations of the constants in the constant pool MCP.

virtual void	emitJumpTableInfo ()
	Print assembly representations of the jump tables used by the current function to the current output stream.

virtual void	emitGlobalVariable (const GlobalVariable *GV)
	Emit the specified global variable to the .s file.

bool	emitSpecialLLVMGlobal (const GlobalVariable *GV)
	Check to see if the specified global is a special global used by LLVM.

void	preprocessXXStructorList (const DataLayout &DL, const Constant *List, SmallVector< Structor, 8 > &Structors)
	This method gathers an array of Structors and then sorts them out by Priority.

virtual void	emitXXStructorList (const DataLayout &DL, const Constant *List, bool IsCtor)
	This method emits `llvm.global_ctors` or `llvm.global_dtors` list.

void	emitAlignment (Align Alignment, const GlobalObject *GV=nullptr, unsigned MaxBytesToEmit=0) const
	Emit an alignment directive to the specified power of two boundary.

virtual const MCExpr *	lowerConstant (const Constant *CV)
	Lower the specified LLVM Constant to an MCExpr.

void	emitGlobalConstant (const DataLayout &DL, const Constant CV, AliasMapTy AliasList=nullptr)
	EmitGlobalConstant - Print a general LLVM constant to the .s file.

void	computeGlobalGOTEquivs (Module &M)
	Unnamed constant global variables solely contaning a pointer to another globals variable act like a global variable "proxy", or GOT equivalents, i.e., it's only used to hold the address of the latter.

void	emitGlobalGOTEquivs ()
	Constant expressions using GOT equivalent globals may not be eligible for PC relative GOT entry conversion, in such cases we need to emit the proxies we previously omitted in EmitGlobalVariable.

void	emitStackMaps ()
	Emit the stack maps.

void	addAsmPrinterHandler (std::unique_ptr< AsmPrinterHandler > Handler)

void	addDebugHandler (std::unique_ptr< DebugHandlerBase > Handler)

virtual void	emitStartOfAsmFile (Module &)
	This virtual method can be overridden by targets that want to emit something at the start of their file.

virtual void	emitEndOfAsmFile (Module &)
	This virtual method can be overridden by targets that want to emit something at the end of their file.

virtual void	emitFunctionBodyStart ()
	Targets can override this to emit stuff before the first basic block in the function.

virtual void	emitFunctionBodyEnd ()
	Targets can override this to emit stuff after the last basic block in the function.

virtual void	emitBasicBlockStart (const MachineBasicBlock &MBB)
	Targets can override this to emit stuff at the start of a basic block.

virtual void	emitBasicBlockEnd (const MachineBasicBlock &MBB)
	Targets can override this to emit stuff at the end of a basic block.

virtual void	emitInstruction (const MachineInstr *)
	Targets should implement this to emit instructions.

virtual MCSymbol *	GetCPISymbol (unsigned CPID) const
	Return the symbol for the specified constant pool entry.

virtual void	emitFunctionEntryLabel ()
	EmitFunctionEntryLabel - Emit the label that is the entrypoint for the function.

virtual void	emitFunctionDescriptor ()

virtual void	emitMachineConstantPoolValue (MachineConstantPoolValue *MCPV)

virtual void	emitXXStructor (const DataLayout &DL, const Constant *CV)
	Targets can override this to change how global constants that are part of a C++ static/global constructor list are emitted.

virtual const MCExpr *	lowerConstantPtrAuth (const ConstantPtrAuth &CPA)

virtual const MCExpr *	lowerBlockAddressConstant (const BlockAddress &BA)
	Lower the specified BlockAddress to an MCExpr.

virtual bool	isBlockOnlyReachableByFallthrough (const MachineBasicBlock *MBB) const
	Return true if the basic block has exactly one predecessor and the control transfer mechanism between the predecessor and this block is a fall-through.

virtual void	emitImplicitDef (const MachineInstr *MI) const
	Targets can override this to customize the output of IMPLICIT_DEF instructions in verbose mode.

virtual const MCSubtargetInfo *	getIFuncMCSubtargetInfo () const
	getSubtargetInfo() cannot be used where this is needed because we don't have a MachineFunction when we're lowering a GlobalIFunc, and getSubtargetInfo requires one.

virtual void	emitMachOIFuncStubBody (Module &M, const GlobalIFunc &GI, MCSymbol *LazyPointer)

virtual void	emitMachOIFuncStubHelperBody (Module &M, const GlobalIFunc &GI, MCSymbol *LazyPointer)

void	emitNops (unsigned N)
	Emit N NOP instructions.

MCSymbol *	createTempSymbol (const Twine &Name) const

MCSymbol *	getSymbolWithGlobalValueBase (const GlobalValue *GV, StringRef Suffix) const
	Return the MCSymbol for a private symbol with global value name as its base, with the specified suffix.

MCSymbol *	GetExternalSymbolSymbol (Twine Sym) const
	Return the MCSymbol for the specified ExternalSymbol.

MCSymbol *	GetJTISymbol (unsigned JTID, bool isLinkerPrivate=false) const
	Return the symbol for the specified jump table entry.

MCSymbol *	GetJTSetSymbol (unsigned UID, unsigned MBBID) const
	Return the symbol for the specified jump table .set FIXME: privatize to AsmPrinter.

MCSymbol *	GetBlockAddressSymbol (const BlockAddress *BA) const
	Return the MCSymbol used to satisfy BlockAddress uses of the specified basic block.

MCSymbol *	GetBlockAddressSymbol (const BasicBlock *BB) const

void	printOffset (int64_t Offset, raw_ostream &OS) const
	This is just convenient handler for printing offsets.

void	emitInt8 (int Value) const
	Emit a byte directive and value.

void	emitInt16 (int Value) const
	Emit a short directive and value.

void	emitInt32 (int Value) const
	Emit a long directive and value.

void	emitInt64 (uint64_t Value) const
	Emit a long long directive and value.

void	emitSLEB128 (int64_t Value, const char *Desc=nullptr) const
	Emit the specified signed leb128 value.

void	emitULEB128 (uint64_t Value, const char *Desc=nullptr, unsigned PadTo=0) const
	Emit the specified unsigned leb128 value.

void	emitLabelDifference (const MCSymbol Hi, const MCSymbol Lo, unsigned Size) const
	Emit something like ".long Hi-Lo" where the size in bytes of the directive is specified by Size and Hi/Lo specify the labels.

void	emitLabelDifferenceAsULEB128 (const MCSymbol Hi, const MCSymbol Lo) const
	Emit something like ".uleb128 Hi-Lo".

void	emitLabelPlusOffset (const MCSymbol *Label, uint64_t Offset, unsigned Size, bool IsSectionRelative=false) const
	Emit something like ".long Label+Offset" where the size in bytes of the directive is specified by Size and Label specifies the label.

void	emitLabelReference (const MCSymbol *Label, unsigned Size, bool IsSectionRelative=false) const
	Emit something like ".long Label" where the size in bytes of the directive is specified by Size and Label specifies the label.

void	emitEncodingByte (unsigned Val, const char *Desc=nullptr) const
	Emit a .byte 42 directive that corresponds to an encoding.

unsigned	GetSizeOfEncodedValue (unsigned Encoding) const
	Return the size of the encoding in bytes.

virtual void	emitTTypeReference (const GlobalValue *GV, unsigned Encoding)
	Emit reference to a ttype global with a specified encoding.

void	emitDwarfSymbolReference (const MCSymbol *Label, bool ForceOffset=false) const
	Emit a reference to a symbol for use in dwarf.

void	emitDwarfStringOffset (DwarfStringPoolEntry S) const
	Emit the 4- or 8-byte offset of a string from the start of its section.

void	emitDwarfStringOffset (DwarfStringPoolEntryRef S) const
	Emit the 4-or 8-byte offset of a string from the start of its section.

void	emitDwarfOffset (const MCSymbol *Label, uint64_t Offset) const
	Emit something like ".long Label + Offset" or ".quad Label + Offset" depending on the DWARF format.

void	emitDwarfLengthOrOffset (uint64_t Value) const
	Emit 32- or 64-bit value depending on the DWARF format.

void	emitDwarfUnitLength (uint64_t Length, const Twine &Comment) const
	Emit a unit length field.

MCSymbol *	emitDwarfUnitLength (const Twine &Prefix, const Twine &Comment) const
	Emit a unit length field.

void	emitCallSiteOffset (const MCSymbol Hi, const MCSymbol Lo, unsigned Encoding) const
	Emit reference to a call site with a specified encoding.

void	emitCallSiteValue (uint64_t Value, unsigned Encoding) const
	Emit an integer value corresponding to the call site encoding.

virtual unsigned	getISAEncoding ()
	Get the value for DW_AT_APPLE_isa. Zero if no isa encoding specified.

virtual void	emitDebugValue (const MCExpr *Value, unsigned Size) const
	Emit the directive and value for debug thread local expression.

void	emitCFIInstruction (const MCCFIInstruction &Inst) const
	Emit frame instruction to describe the layout of the frame.

template<typename T >
void	emitDwarfAbbrevs (const T &Abbrevs) const
	Emit Dwarf abbreviation table.

void	emitDwarfAbbrev (const DIEAbbrev &Abbrev) const

void	emitDwarfDIE (const DIE &Die) const
	Recursively emit Dwarf DIE tree.

virtual std::tuple< const MCSymbol , uint64_t, const MCSymbol , codeview::JumpTableEntrySize >	getCodeViewJumpTableInfo (int JTI, const MachineInstr BranchInstr, const MCSymbol BranchLabel) const
	Gets information required to create a CodeView debug symbol for a jump table.

virtual void	PrintSpecial (const MachineInstr *MI, raw_ostream &OS, StringRef Code) const
	Print information related to the specified machine instr that is independent of the operand, and may be independent of the instr itself.

virtual void	PrintSymbolOperand (const MachineOperand &MO, raw_ostream &OS)
	Print the MachineOperand as a symbol.

virtual bool	PrintAsmOperand (const MachineInstr MI, unsigned OpNo, const char ExtraCode, raw_ostream &OS)
	Print the specified operand of MI, an INLINEASM instruction, using the specified assembler variant.

virtual bool	PrintAsmMemoryOperand (const MachineInstr MI, unsigned OpNo, const char ExtraCode, raw_ostream &OS)
	Print the specified operand of MI, an INLINEASM instruction, using the specified assembler variant as an address.

virtual void	emitInlineAsmStart () const
	Let the target do anything it needs to do before emitting inlineasm.

virtual void	emitInlineAsmEnd (const MCSubtargetInfo &StartInfo, const MCSubtargetInfo *EndInfo) const
	Let the target do anything it needs to do after emitting inlineasm.

void	emitVisibility (MCSymbol *Sym, unsigned Visibility, bool IsDefinition=true) const
	This emits visibility information about symbol, if this is supported by the target.

virtual void	emitLinkage (const GlobalValue GV, MCSymbol GVSym) const
	This emits linkage information about `GVSym` based on `GV`, if this is supported by the target.

Public Member Functions inherited from llvm::MachineFunctionPass
bool	doInitialization (Module &) override
	doInitialization - Virtual method overridden by subclasses to do any necessary initialization before any pass is run.

Public Member Functions inherited from llvm::FunctionPass
	FunctionPass (char &pid)

Pass *	createPrinterPass (raw_ostream &OS, const std::string &Banner) const override
	createPrinterPass - Get a function printer pass.

virtual bool	runOnFunction (Function &F)=0
	runOnFunction - Virtual method overriden by subclasses to do the per-function processing of the pass.

void	assignPassManager (PMStack &PMS, PassManagerType T) override
	Find appropriate Function Pass Manager or Call Graph Pass Manager in the PM Stack and add self into that manager.

PassManagerType	getPotentialPassManagerType () const override
	Return what kind of Pass Manager can manage this pass.

Public Member Functions inherited from llvm::Pass
	Pass (PassKind K, char &pid)

	Pass (const Pass &)=delete

Pass &	operator= (const Pass &)=delete

virtual	~Pass ()

PassKind	getPassKind () const

virtual StringRef	getPassName () const
	getPassName - Return a nice clean name for a pass.

AnalysisID	getPassID () const
	getPassID - Return the PassID number that corresponds to this pass.

virtual bool	doInitialization (Module &)
	doInitialization - Virtual method overridden by subclasses to do any necessary initialization before any pass is run.

virtual bool	doFinalization (Module &)
	doFinalization - Virtual method overriden by subclasses to do any necessary clean up after all passes have run.

virtual void	print (raw_ostream &OS, const Module *M) const
	print - Print out the internal state of the pass.

void	dump () const

virtual Pass *	createPrinterPass (raw_ostream &OS, const std::string &Banner) const =0
	createPrinterPass - Get a Pass appropriate to print the IR this pass operates on (Module, Function or MachineFunction).

virtual void	assignPassManager (PMStack &, PassManagerType)
	Each pass is responsible for assigning a pass manager to itself.

virtual void	preparePassManager (PMStack &)
	Check if available pass managers are suitable for this pass or not.

virtual PassManagerType	getPotentialPassManagerType () const
	Return what kind of Pass Manager can manage this pass.

void	setResolver (AnalysisResolver *AR)

AnalysisResolver *	getResolver () const

virtual void	getAnalysisUsage (AnalysisUsage &) const
	getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job.

virtual void	releaseMemory ()
	releaseMemory() - This member can be implemented by a pass if it wants to be able to release its memory when it is no longer needed.

virtual void *	getAdjustedAnalysisPointer (AnalysisID ID)
	getAdjustedAnalysisPointer - This method is used when a pass implements an analysis interface through multiple inheritance.

virtual ImmutablePass *	getAsImmutablePass ()

virtual PMDataManager *	getAsPMDataManager ()

virtual void	verifyAnalysis () const
	verifyAnalysis() - This member can be implemented by a analysis pass to check state of analysis information.

virtual void	dumpPassStructure (unsigned Offset=0)

template<typename AnalysisType >
AnalysisType *	getAnalysisIfAvailable () const
	getAnalysisIfAvailable<AnalysisType>() - Subclasses use this function to get analysis information that might be around, for example to update it.

bool	mustPreserveAnalysisID (char &AID) const
	mustPreserveAnalysisID - This method serves the same function as getAnalysisIfAvailable, but works if you just have an AnalysisID.

template<typename AnalysisType >
AnalysisType &	getAnalysis () const
	getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function.

template<typename AnalysisType >
AnalysisType &	getAnalysis (Function &F, bool *Changed=nullptr)
	getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function.

template<typename AnalysisType >
AnalysisType &	getAnalysisID (AnalysisID PI) const

template<typename AnalysisType >
AnalysisType &	getAnalysisID (AnalysisID PI, Function &F, bool *Changed=nullptr)

Additional Inherited Members
Public Types inherited from llvm::AsmPrinter
enum class	CFISection : unsigned { None = 0 , EH = 1 , Debug = 2 }

enum class	SledKind : uint8_t { FUNCTION_ENTER = 0 , FUNCTION_EXIT = 1 , TAIL_CALL = 2 , LOG_ARGS_ENTER = 3 , CUSTOM_EVENT = 4 , TYPED_EVENT = 5 }

using	GOTEquivUsePair = std::pair< const GlobalVariable *, unsigned >
	Map global GOT equivalent MCSymbols to GlobalVariables and keep track of its number of uses by other globals.

using	AliasMapTy = DenseMap< uint64_t, SmallVector< const GlobalAlias *, 1 > >
	Print a general LLVM constant to the .s file.

Static Public Member Functions inherited from llvm::AsmPrinter
static Align	getGVAlignment (const GlobalObject *GV, const DataLayout &DL, Align InAlign=Align(1))
	Return the alignment for the specified `GV`.

Static Public Member Functions inherited from llvm::Pass
static const PassInfo *	lookupPassInfo (const void *TI)

static const PassInfo *	lookupPassInfo (StringRef Arg)

static Pass *	createPass (AnalysisID ID)

Public Attributes inherited from llvm::AsmPrinter
TargetMachine &	TM
	Target machine description.

const MCAsmInfo *	MAI = nullptr
	Target Asm Printer information.

MCContext &	OutContext
	This is the context for the output file that we are streaming.

std::unique_ptr< MCStreamer >	OutStreamer
	This is the MCStreamer object for the file we are generating.

MachineFunction *	MF = nullptr
	The current machine function.

MachineModuleInfo *	MMI = nullptr
	This is a pointer to the current MachineModuleInfo.

MachineDominatorTree *	MDT = nullptr
	This is a pointer to the current MachineDominatorTree.

MachineLoopInfo *	MLI = nullptr
	This is a pointer to the current MachineLoopInfo.

MachineOptimizationRemarkEmitter *	ORE = nullptr
	Optimization remark emitter.

MCSymbol *	CurrentPatchableFunctionEntrySym = nullptr
	The symbol for the entry in __patchable_function_entires.

MCSymbol *	CurrentFnSym = nullptr
	The symbol for the current function.

MCSymbol *	CurrentFnDescSym = nullptr
	The symbol for the current function descriptor on AIX.

MCSymbol *	CurrentFnSymForSize = nullptr
	The symbol used to represent the start of the current function for the purpose of calculating its size (e.g.

MapVector< MBBSectionID, MBBSectionRange >	MBBSectionRanges

MapVector< const MCSymbol *, GOTEquivUsePair >	GlobalGOTEquivs

SmallVector< XRayFunctionEntry, 4 >	Sleds

Protected Member Functions inherited from llvm::AsmPrinter
	AsmPrinter (TargetMachine &TM, std::unique_ptr< MCStreamer > Streamer)

virtual void	emitGlobalAlias (const Module &M, const GlobalAlias &GA)

virtual bool	shouldEmitWeakSwiftAsyncExtendedFramePointerFlags () const

Protected Member Functions inherited from llvm::MachineFunctionPass
	MachineFunctionPass (char &ID)

virtual bool	runOnMachineFunction (MachineFunction &MF)=0
	runOnMachineFunction - This method must be overloaded to perform the desired machine code transformation or analysis.

void	getAnalysisUsage (AnalysisUsage &AU) const override
	getAnalysisUsage - Subclasses that override getAnalysisUsage must call this.

virtual MachineFunctionProperties	getRequiredProperties () const

virtual MachineFunctionProperties	getSetProperties () const

virtual MachineFunctionProperties	getClearedProperties () const

Protected Member Functions inherited from llvm::FunctionPass
bool	skipFunction (const Function &F) const
	Optional passes call this function to check whether the pass should be skipped.

Protected Attributes inherited from llvm::AsmPrinter
MCSymbol *	CurrentFnBegin = nullptr

MCSymbol *	CurrentFnBeginLocal = nullptr
	For dso_local functions, the current $local alias for the function.

SmallVector< std::unique_ptr< AsmPrinterHandler >, 2 >	Handlers
	A vector of all debug/EH info emitters we should use.

size_t	NumUserHandlers = 0

SmallVector< std::unique_ptr< DebugHandlerBase >, 1 >	DebugHandlers
	Debuginfo handler. Protected so that targets can add their own.

size_t	NumUserDebugHandlers = 0

StackMaps	SM