#include "CodeGen/AsmPrinter/DwarfException.h"

Inheritance diagram for llvm::DwarfCFIException:

Public Member Functions
	DwarfCFIException (AsmPrinter *A)

	~DwarfCFIException () override

void	endModule () override
	Emit all exception information that should come after the content.

void	beginFunction (const MachineFunction *MF) override
	Gather pre-function exception information.

void	endFunction (const MachineFunction *) override
	Gather and emit post-function exception information.

void	beginBasicBlockSection (const MachineBasicBlock &MBB) override
	Process the beginning of a new basic-block-section within a function.

void	endBasicBlockSection (const MachineBasicBlock &MBB) override
	Process the end of a basic-block-section within a function.

Public Member Functions inherited from llvm::EHStreamer
	EHStreamer (AsmPrinter *A)

	~EHStreamer () override

void	setSymbolSize (const MCSymbol *Sym, uint64_t Size) override
	For symbols that have a size designated (e.g.

void	beginInstruction (const MachineInstr *MI) override
	Process beginning of an instruction.

void	endInstruction () override
	Process end of an instruction.

Public Member Functions inherited from llvm::AsmPrinterHandler
virtual	~AsmPrinterHandler ()
	Pin vtable to this file.

virtual void	setSymbolSize (const MCSymbol *Sym, uint64_t Size)=0
	For symbols that have a size designated (e.g.

virtual void	beginModule (Module *M)

virtual void	endModule ()=0
	Emit all sections that should come after the content.

virtual void	beginFunction (const MachineFunction *MF)=0
	Gather pre-function debug information.

virtual void	markFunctionEnd ()

virtual void	endFunction (const MachineFunction *MF)=0
	Gather post-function debug information.

virtual void	beginBasicBlockSection (const MachineBasicBlock &MBB)
	Process the beginning of a new basic-block-section within a function.

virtual void	endBasicBlockSection (const MachineBasicBlock &MBB)
	Process the end of a basic-block-section within a function.

virtual void	beginFunclet (const MachineBasicBlock &MBB, MCSymbol *Sym=nullptr)
	Emit target-specific EH funclet machinery.

virtual void	endFunclet ()

virtual void	beginInstruction (const MachineInstr *MI)=0
	Process beginning of an instruction.

virtual void	endInstruction ()=0
	Process end of an instruction.

Additional Inherited Members
Static Public Member Functions inherited from llvm::EHStreamer
static bool	callToNoUnwindFunction (const MachineInstr *MI)
	Return ‘true’ if this is a call to a function marked ‘nounwind’.

Protected Types inherited from llvm::EHStreamer
using	RangeMapType = DenseMap< MCSymbol *, PadRange >

Protected Member Functions inherited from llvm::EHStreamer
void	computeActionsTable (const SmallVectorImpl< const LandingPadInfo * > &LandingPads, SmallVectorImpl< ActionEntry > &Actions, SmallVectorImpl< unsigned > &FirstActions)
	Compute the actions table and gather the first action index for each landing pad site.

void	computePadMap (const SmallVectorImpl< const LandingPadInfo * > &LandingPads, RangeMapType &PadMap)

virtual void	computeCallSiteTable (SmallVectorImpl< CallSiteEntry > &CallSites, SmallVectorImpl< CallSiteRange > &CallSiteRanges, const SmallVectorImpl< const LandingPadInfo * > &LandingPads, const SmallVectorImpl< unsigned > &FirstActions)
	Compute the call-site table and the call-site ranges.

MCSymbol *	emitExceptionTable ()
	Emit landing pads and actions.

virtual void	emitTypeInfos (unsigned TTypeEncoding, MCSymbol *TTBaseLabel)

Static Protected Member Functions inherited from llvm::EHStreamer
static unsigned	sharedTypeIDs (const LandingPadInfo L, const LandingPadInfo R)
	How many leading type ids two landing pads have in common.

static bool	isFilterEHSelector (int Selector)

static bool	isCleanupEHSelector (int Selector)

static bool	isCatchEHSelector (int Selector)

Protected Attributes inherited from llvm::EHStreamer
AsmPrinter *	Asm
	Target of directive emission.

MachineModuleInfo *	MMI
	Collected machine module information.

Detailed Description

Definition at line 24 of file DwarfException.h.

Constructor & Destructor Documentation

◆ DwarfCFIException()

DwarfCFIException::DwarfCFIException ( AsmPrinter * A )

Definition at line 26 of file DwarfCFIException.cpp.

◆ ~DwarfCFIException()

DwarfCFIException::~DwarfCFIException ( )

overridedefault

Member Function Documentation

◆ beginBasicBlockSection()

void DwarfCFIException::beginBasicBlockSection ( const MachineBasicBlock & MBB )

overridevirtual

Process the beginning of a new basic-block-section within a function.

Always called immediately after beginFunction for the first basic-block. When basic-block-sections are enabled, called before the first block of each such section.

Reimplemented from llvm::AsmPrinterHandler.

Definition at line 100 of file DwarfCFIException.cpp.

References llvm::EHStreamer::Asm, assert(), llvm::AsmPrinter::Debug, llvm::AsmPrinter::EH, F, llvm::TargetOptions::ForceDwarfFrameSection, llvm::TargetLoweringObjectFile::getCFIPersonalitySymbol(), llvm::MachineFunction::getFunction(), llvm::TargetLoweringObjectFile::getLSDAEncoding(), llvm::AsmPrinter::getMBBExceptionSym(), llvm::AsmPrinter::getModuleCFISectionType(), llvm::AsmPrinter::getObjFileLowering(), llvm::MachineBasicBlock::getParent(), llvm::TargetLoweringObjectFile::getPersonalityEncoding(), MBB, llvm::EHStreamer::MMI, llvm::TargetMachine::Options, llvm::AsmPrinter::OutStreamer, P, Sym, and llvm::AsmPrinter::TM.

◆ beginFunction()

void DwarfCFIException::beginFunction ( const MachineFunction * MF )

overridevirtual

Gather pre-function exception information.

Assumes being emitted immediately after the function entry point.

Implements llvm::AsmPrinterHandler.

Definition at line 57 of file DwarfCFIException.cpp.

References llvm::EHStreamer::Asm, llvm::classifyEHPersonality(), llvm::dwarf::DW_EH_PE_omit, F, llvm::MCContext::getAsmInfo(), llvm::MachineModuleInfo::getContext(), llvm::MCAsmInfo::getExceptionHandlingType(), llvm::MachineFunction::getFunction(), llvm::AsmPrinter::getFunctionCFISectionType(), llvm::MachineFunction::getLandingPads(), llvm::TargetLoweringObjectFile::getLSDAEncoding(), llvm::MachineFunction::getMMI(), llvm::AsmPrinter::getObjFileLowering(), llvm::TargetLoweringObjectFile::getPersonalityEncoding(), llvm::isNoOpWithoutInvoke(), llvm::AsmPrinter::None, llvm::None, llvm::MCAsmInfo::usesCFIForEH(), and llvm::AsmPrinter::usesCFIWithoutEH().

◆ endBasicBlockSection()

void DwarfCFIException::endBasicBlockSection ( const MachineBasicBlock & MBB )

overridevirtual

Process the end of a basic-block-section within a function.

When basic-block-sections are enabled, called after the last block in each such section (including the last section in the function). When basic-block-sections are disabled, called at the end of a function, immediately prior to markFunctionEnd.

Reimplemented from llvm::AsmPrinterHandler.

Definition at line 139 of file DwarfCFIException.cpp.

References llvm::EHStreamer::Asm, and llvm::AsmPrinter::OutStreamer.