clang: clang::CodeGen::EHCleanupScope Class Reference (original) (raw)

A cleanup scope which generates the cleanup blocks lazily. More...

#include "[/home/buildbot/as-worker-4/publish-doxygen-docs/llvm-project/clang/lib/CodeGen/CGCleanup.h](CGCleanup%5F8h%5Fsource.html)"

Public Member Functions
size_t	getAllocatedSize () const

	EHCleanupScope (bool isNormal, bool isEH, unsigned cleanupSize, unsigned fixupDepth, EHScopeStack::stable_iterator enclosingNormal, EHScopeStack::stable_iterator enclosingEH)

void	Destroy ()

void	AddAuxAllocas (llvm::SmallVector< llvm::AllocaInst * > Allocas)

void	MarkEmitted ()

	~EHCleanupScope ()=delete

bool	isNormalCleanup () const

llvm::BasicBlock *	getNormalBlock () const

void	setNormalBlock (llvm::BasicBlock *BB)

bool	isEHCleanup () const

bool	isActive () const

void	setActive (bool A)

bool	isLifetimeMarker () const

void	setLifetimeMarker ()

bool	hasActiveFlag () const

Address	getActiveFlag () const

void	setActiveFlag (RawAddress Var)

void	setTestFlagInNormalCleanup ()

bool	shouldTestFlagInNormalCleanup () const

void	setTestFlagInEHCleanup ()

bool	shouldTestFlagInEHCleanup () const

unsigned	getFixupDepth () const

EHScopeStack::stable_iterator	getEnclosingNormalCleanup () const

size_t	getCleanupSize () const

void *	getCleanupBuffer ()

EHScopeStack::Cleanup *	getCleanup ()

bool	hasBranches () const
	True if this cleanup scope has any branch-afters or branch-throughs.

void	addBranchAfter (llvm::ConstantInt Index, llvm::BasicBlock Block)
	Add a branch-after to this cleanup scope.

unsigned	getNumBranchAfters () const
	Return the number of unique branch-afters on this scope.

llvm::BasicBlock *	getBranchAfterBlock (unsigned I) const

llvm::ConstantInt *	getBranchAfterIndex (unsigned I) const

bool	addBranchThrough (llvm::BasicBlock *Block)
	Add a branch-through to this cleanup scope.

bool	hasBranchThroughs () const
	Determines if this cleanup scope has any branch throughs.

Public Member Functions inherited from clang::CodeGen::EHScope
	EHScope (Kind kind, EHScopeStack::stable_iterator enclosingEHScope)

Kind	getKind () const

llvm::BasicBlock *	getCachedLandingPad () const

void	setCachedLandingPad (llvm::BasicBlock *block)

llvm::BasicBlock *	getCachedEHDispatchBlock () const

void	setCachedEHDispatchBlock (llvm::BasicBlock *block)

bool	hasEHBranches () const

EHScopeStack::stable_iterator	getEnclosingEHScope () const

Static Public Member Functions
static size_t	getSizeForCleanupSize (size_t Size)
	Gets the size required for a lazy cleanup scope with the given cleanup-data requirements.

static bool	classof (const EHScope *Scope)

Additional Inherited Members
Public Types inherited from clang::CodeGen::EHScope
enum	Kind { Cleanup, Catch, Terminate, Filter }

Protected Attributes inherited from clang::CodeGen::EHScope
union {
CommonBitFields CommonBits

CatchBitFields CatchBits

CleanupBitFields CleanupBits

FilterBitFields FilterBits

};

A cleanup scope which generates the cleanup blocks lazily.

Definition at line 243 of file CGCleanup.h.

◆ ~EHCleanupScope()

clang::CodeGen::EHCleanupScope::~EHCleanupScope ( )	delete

◆ AddAuxAllocas()

void clang::CodeGen::EHCleanupScope::AddAuxAllocas ( llvm::SmallVector< llvm::AllocaInst * > Allocas)	inline

◆ addBranchAfter()

void clang::CodeGen::EHCleanupScope::addBranchAfter ( llvm::ConstantInt * Index, llvm::BasicBlock * Block )	inline

Add a branch-after to this cleanup scope.

A branch-after is a branch from a point protected by this (normal) cleanup to a point in the normal cleanup scope immediately containing it. For example, for (;;) { A a; break; } contains a branch-after.

Branch-afters each have their own destination out of the cleanup, guaranteed distinct from anything else threaded through it. Therefore branch-afters usually force a switch after the cleanup.

Definition at line 436 of file CGCleanup.h.

References clang::Block.

◆ addBranchThrough()

bool clang::CodeGen::EHCleanupScope::addBranchThrough ( llvm::BasicBlock * Block)	inline

Add a branch-through to this cleanup scope.

A branch-through is a branch from a scope protected by this (normal) cleanup to an enclosing scope other than the immediately-enclosing normal cleanup scope.

In the following example, the branch through B's scope is a branch-through, while the branch through A's scope is a branch-after: for (;;) { A a; B b; break; }

All branch-throughs have a common destination out of the cleanup, one possibly shared with the fall-through. Therefore branch-throughs usually don't force a switch after the cleanup.

Returns

true if the branch-through was new to this scope

Definition at line 473 of file CGCleanup.h.

References clang::Block.

◆ classof()

static bool clang::CodeGen::EHCleanupScope::classof ( const EHScope * Scope)	inlinestatic

◆ Destroy()

void clang::CodeGen::EHCleanupScope::Destroy ( )	inline

◆ getActiveFlag()

Address clang::CodeGen::EHCleanupScope::getActiveFlag ( ) const	inline

◆ getAllocatedSize()

size_t clang::CodeGen::EHCleanupScope::getAllocatedSize ( ) const	inline

◆ getBranchAfterBlock()

llvm::BasicBlock * clang::CodeGen::EHCleanupScope::getBranchAfterBlock ( unsigned I) const	inline

◆ getBranchAfterIndex()

llvm::ConstantInt * clang::CodeGen::EHCleanupScope::getBranchAfterIndex ( unsigned I) const	inline

◆ getCleanup()

◆ getCleanupBuffer()

void * clang::CodeGen::EHCleanupScope::getCleanupBuffer ( )	inline

◆ getCleanupSize()

size_t clang::CodeGen::EHCleanupScope::getCleanupSize ( ) const	inline

◆ getEnclosingNormalCleanup()

◆ getFixupDepth()

unsigned clang::CodeGen::EHCleanupScope::getFixupDepth ( ) const	inline

◆ getNormalBlock()

llvm::BasicBlock * clang::CodeGen::EHCleanupScope::getNormalBlock ( ) const	inline

◆ getNumBranchAfters()

unsigned clang::CodeGen::EHCleanupScope::getNumBranchAfters ( ) const	inline

◆ getSizeForCleanupSize()

static size_t clang::CodeGen::EHCleanupScope::getSizeForCleanupSize ( size_t Size)	inlinestatic

Gets the size required for a lazy cleanup scope with the given cleanup-data requirements.

Definition at line 335 of file CGCleanup.h.

◆ hasActiveFlag()

bool clang::CodeGen::EHCleanupScope::hasActiveFlag ( ) const	inline

◆ hasBranches()

bool clang::CodeGen::EHCleanupScope::hasBranches ( ) const	inline

True if this cleanup scope has any branch-afters or branch-throughs.

Definition at line 423 of file CGCleanup.h.

◆ hasBranchThroughs()

bool clang::CodeGen::EHCleanupScope::hasBranchThroughs ( ) const	inline

Determines if this cleanup scope has any branch throughs.

Definition at line 478 of file CGCleanup.h.

◆ isActive()

bool clang::CodeGen::EHCleanupScope::isActive ( ) const	inline

◆ isEHCleanup()

bool clang::CodeGen::EHCleanupScope::isEHCleanup ( ) const	inline

◆ isLifetimeMarker()

bool clang::CodeGen::EHCleanupScope::isLifetimeMarker ( ) const	inline

◆ isNormalCleanup()

bool clang::CodeGen::EHCleanupScope::isNormalCleanup ( ) const	inline

◆ MarkEmitted()

void clang::CodeGen::EHCleanupScope::MarkEmitted ( )	inline

◆ setActive()

void clang::CodeGen::EHCleanupScope::setActive ( bool A)	inline

◆ setActiveFlag()

void clang::CodeGen::EHCleanupScope::setActiveFlag ( RawAddress Var)	inline

◆ setLifetimeMarker()

void clang::CodeGen::EHCleanupScope::setLifetimeMarker ( )	inline

◆ setNormalBlock()

void clang::CodeGen::EHCleanupScope::setNormalBlock ( llvm::BasicBlock * BB)	inline

◆ setTestFlagInEHCleanup()

void clang::CodeGen::EHCleanupScope::setTestFlagInEHCleanup ( )	inline

◆ setTestFlagInNormalCleanup()

void clang::CodeGen::EHCleanupScope::setTestFlagInNormalCleanup ( )	inline

◆ shouldTestFlagInEHCleanup()

bool clang::CodeGen::EHCleanupScope::shouldTestFlagInEHCleanup ( ) const	inline

◆ shouldTestFlagInNormalCleanup()

bool clang::CodeGen::EHCleanupScope::shouldTestFlagInNormalCleanup ( ) const	inline

The documentation for this class was generated from the following file:

lib/CodeGen/CGCleanup.h