#include <Instructions.h>

Inheritance diagram for llvm::LandingPadInst:

Collaboration diagram for llvm::LandingPadInst:

Public Types
enum	ClauseType { Catch, Filter }
Public Member Functions
	~LandingPadInst ()
	DECLARE_TRANSPARENT_OPERAND_ACCESSORS (Value)
	Provide fast operand accessors.
Value *	getPersonalityFn () const
bool	isCleanup () const
void	setCleanup (bool V)
	setCleanup - Indicate that this landingpad instruction is a cleanup.
void	addClause (Constant *ClauseVal)
	Add a catch or filter clause to the landing pad.
Constant *	getClause (unsigned Idx) const
bool	isCatch (unsigned Idx) const
	isCatch - Return 'true' if the clause and index Idx is a catch clause.
bool	isFilter (unsigned Idx) const
	isFilter - Return 'true' if the clause and index Idx is a filter clause.
unsigned	getNumClauses () const
	getNumClauses - Get the number of clauses for this landing pad.
void	reserveClauses (unsigned Size)
Static Public Member Functions
static LandingPadInst *	Create (Type RetTy, Value PersonalityFn, unsigned NumReservedClauses, const Twine &NameStr="", Instruction *InsertBefore=nullptr)
static LandingPadInst *	Create (Type RetTy, Value PersonalityFn, unsigned NumReservedClauses, const Twine &NameStr, BasicBlock *InsertAtEnd)
static bool	classof (const Instruction *I)
static bool	classof (const Value *V)
	Methods for support type inquiry through isa, cast, and dyn_cast:
Protected Member Functions
LandingPadInst *	clone_impl () const override

Detailed Description

LandingPadInst - The landingpad instruction holds all of the information necessary to generate correct exception handling. The landingpad instruction cannot be moved from the top of a landing pad block, which itself is accessible only from the 'unwind' edge of an invoke. This uses the SubclassData field in Value to store whether or not the landingpad is a cleanup.

Definition at line 2290 of file Instructions.h.

Member Enumeration Documentation

enum llvm::LandingPadInst::ClauseType

Enumerator:

Catch
Filter

Definition at line 2296 of file Instructions.h.

Constructor & Destructor Documentation

LandingPadInst::~LandingPadInst ( )

Definition at line 205 of file Instructions.cpp.

References llvm::User::dropHungoffUses().

Member Function Documentation

void LandingPadInst::addClause ( Constant * ClauseVal )

Add a catch or filter clause to the landing pad.

Definition at line 251 of file Instructions.cpp.

References llvm::User::getNumOperands(), llvm::User::NumOperands, and llvm::User::OperandList.

Referenced by llvm::InstCombiner::visitLandingPadInst().

static bool llvm::LandingPadInst::classof ( const Instruction * I ) [inline, static]

Definition at line 2371 of file Instructions.h.

References llvm::Instruction::getOpcode(), and llvm::LandingPad.

static bool llvm::LandingPadInst::classof ( const Value * V ) [inline, static]

Methods for support type inquiry through isa, cast, and dyn_cast:

Reimplemented from llvm::Instruction.

Definition at line 2374 of file Instructions.h.

LandingPadInst * LandingPadInst::clone_impl ( ) const [override, protected, virtual]

Implements llvm::Instruction.

Definition at line 3757 of file Instructions.cpp.

LandingPadInst * LandingPadInst::Create	(	Type *	RetTy,
		Value *	PersonalityFn,
		unsigned	NumReservedClauses,
		const Twine &	NameStr = `""`,
		Instruction *	InsertBefore = `nullptr`
	)		`[static]`

Constructors - NumReservedClauses is a hint for the number of incoming clauses that this landingpad will have (use 0 if you really have no idea).

Definition at line 209 of file Instructions.cpp.

Referenced by llvm::IRBuilder< true, TargetFolder >::CreateLandingPad(), and llvm::InstCombiner::visitLandingPadInst().

LandingPadInst * LandingPadInst::Create	(	Type *	RetTy,
		Value *	PersonalityFn,
		unsigned	NumReservedClauses,
		const Twine &	NameStr,
		BasicBlock *	InsertAtEnd
	)		`[static]`

Definition at line 217 of file Instructions.cpp.

llvm::LandingPadInst::DECLARE_TRANSPARENT_OPERAND_ACCESSORS ( Value )

Provide fast operand accessors.

Constant* llvm::LandingPadInst::getClause ( unsigned Idx ) const [inline]

Get the value of the clause at index Idx. Use isCatch/isFilter to determine what type of clause this is.

Definition at line 2349 of file Instructions.h.

Referenced by llvm::AddLandingPadInfo(), HandleInlinedInvoke(), llvm::InstCombiner::visitLandingPadInst(), and WriteInstruction().

unsigned llvm::LandingPadInst::getNumClauses ( ) const [inline]

getNumClauses - Get the number of clauses for this landing pad.

Definition at line 2364 of file Instructions.h.

Referenced by llvm::AddLandingPadInfo(), HandleInlinedInvoke(), llvm::InstCombiner::visitLandingPadInst(), and WriteInstruction().

Value* llvm::LandingPadInst::getPersonalityFn ( ) const [inline]

getPersonalityFn - Get the personality function associated with this landing pad.

Definition at line 2331 of file Instructions.h.

Referenced by llvm::AddLandingPadInfo(), llvm::InlineFunction(), llvm::InstCombiner::visitLandingPadInst(), and WriteInstruction().

bool llvm::LandingPadInst::isCatch ( unsigned Idx ) const [inline]

isCatch - Return 'true' if the clause and index Idx is a catch clause.

Definition at line 2354 of file Instructions.h.

Referenced by llvm::AddLandingPadInfo(), llvm::InstCombiner::visitLandingPadInst(), and WriteInstruction().

bool llvm::LandingPadInst::isCleanup ( ) const [inline]

isCleanup - Return 'true' if this landingpad instruction is a cleanup. I.e., it should be run when unwinding even if its landing pad doesn't catch the exception.

Definition at line 2336 of file Instructions.h.

Referenced by llvm::AddLandingPadInfo(), HandleInlinedInvoke(), llvm::InstCombiner::visitLandingPadInst(), and WriteInstruction().

bool llvm::LandingPadInst::isFilter ( unsigned Idx ) const [inline]