llvm::GCFunctionInfo Class Reference

Garbage collection metadata for a single function. More...

#include "llvm/CodeGen/GCMetadata.h"

Public Types
using	iterator = std::vector< GCPoint >::iterator
using	roots_iterator = std::vector< GCRoot >::iterator
using	live_iterator = std::vector< GCRoot >::const_iterator

Public Member Functions
	GCFunctionInfo (const Function &F, GCStrategy &S)
	~GCFunctionInfo ()
bool	invalidate (Function &F, const PreservedAnalyses &PA, FunctionAnalysisManager::Invalidator &Inv)
	Handle invalidation explicitly.
const Function &	getFunction () const
	getFunction - Return the function to which this metadata applies.
GCStrategy &	getStrategy ()
	getStrategy - Return the GC strategy for the function.
void	addStackRoot (int Num, const Constant *Metadata)
	addStackRoot - Registers a root that lives on the stack.
roots_iterator	removeStackRoot (roots_iterator position)
	removeStackRoot - Removes a root.
void	addSafePoint (MCSymbol *Label, const DebugLoc &DL)
	addSafePoint - Notes the existence of a safe point.
uint64_t	getFrameSize () const
	getFrameSize/setFrameSize - Records the function's frame size.
void	setFrameSize (uint64_t S)
iterator	begin ()
	begin/end - Iterators for safe points.
iterator	end ()
size_t	size () const
roots_iterator	roots_begin ()
	roots_begin/roots_end - Iterators for all roots in the function.
roots_iterator	roots_end ()
size_t	roots_size () const
live_iterator	live_begin (const iterator &p)
	live_begin/live_end - Iterators for live roots at a given safe point.
live_iterator	live_end (const iterator &p)
size_t	live_size (const iterator &p) const

Detailed Description

Garbage collection metadata for a single function.

Currently, this information only applies to GCStrategies which use GCRoot.

Definition at line 78 of file GCMetadata.h.

Member Typedef Documentation

iterator

using llvm::GCFunctionInfo::iterator = std::vector<GCPoint>::iterator

Definition at line 80 of file GCMetadata.h.

live_iterator

using llvm::GCFunctionInfo::live_iterator = std::vector<GCRoot>::const_iterator

Definition at line 82 of file GCMetadata.h.

roots_iterator

using llvm::GCFunctionInfo::roots_iterator = std::vector<GCRoot>::iterator

Definition at line 81 of file GCMetadata.h.

Constructor & Destructor Documentation

GCFunctionInfo()

llvm::GCFunctionInfo::GCFunctionInfo	(	const Function &	F,
		GCStrategy &	S
	)

~GCFunctionInfo()

GCFunctionInfo::~GCFunctionInfo ( )

default

Member Function Documentation

addSafePoint()

void llvm::GCFunctionInfo::addSafePoint ( MCSymbol *  Label, const DebugLoc &  DL  )

inline

addSafePoint - Notes the existence of a safe point.

Num is the ID of the label just prior to the safe point (if the code generator is using MachineModuleInfo).

Definition at line 130 of file GCMetadata.h.

References DL.

addStackRoot()

void llvm::GCFunctionInfo::addStackRoot ( int  Num, const Constant *  Metadata  )

inline

addStackRoot - Registers a root that lives on the stack.

Num is the stack object ID for the alloca (if the code generator is

Definition at line 118 of file GCMetadata.h.

begin()

iterator llvm::GCFunctionInfo::begin ( )

inline

begin/end - Iterators for safe points.

Definition at line 139 of file GCMetadata.h.

end()

iterator llvm::GCFunctionInfo::end ( )

inline

Definition at line 140 of file GCMetadata.h.

getFrameSize()

uint64_t llvm::GCFunctionInfo::getFrameSize ( ) const

inline

getFrameSize/setFrameSize - Records the function's frame size.

Definition at line 135 of file GCMetadata.h.

getFunction()

const Function & llvm::GCFunctionInfo::getFunction ( ) const

inline

getFunction - Return the function to which this metadata applies.

Definition at line 110 of file GCMetadata.h.

References F.

getStrategy()

GCStrategy & llvm::GCFunctionInfo::getStrategy ( )

inline

getStrategy - Return the GC strategy for the function.

Definition at line 113 of file GCMetadata.h.

Referenced by llvm::SelectionDAGBuilder::LowerStatepoint().

invalidate()

bool GCFunctionInfo::invalidate	(	Function &	F,
		const PreservedAnalyses &	PA,
		FunctionAnalysisManager::Invalidator &	Inv
	)

Handle invalidation explicitly.

Definition at line 81 of file GCMetadata.cpp.

References llvm::PreservedAnalyses::getChecker().

live_begin()

live_iterator llvm::GCFunctionInfo::live_begin ( const iterator &  p )

inline

live_begin/live_end - Iterators for live roots at a given safe point.

Definition at line 149 of file GCMetadata.h.

References roots_begin().

live_end()

live_iterator llvm::GCFunctionInfo::live_end ( const iterator &  p )

inline

Definition at line 150 of file GCMetadata.h.

References roots_end().

live_size()

size_t llvm::GCFunctionInfo::live_size ( const iterator &  p ) const

inline

Definition at line 151 of file GCMetadata.h.

References roots_size().

removeStackRoot()

roots_iterator llvm::GCFunctionInfo::removeStackRoot ( roots_iterator  position )

inline

removeStackRoot - Removes a root.

Definition at line 123 of file GCMetadata.h.

roots_begin()

roots_iterator llvm::GCFunctionInfo::roots_begin ( )

inline

roots_begin/roots_end - Iterators for all roots in the function.

Definition at line 144 of file GCMetadata.h.

Referenced by live_begin().

roots_end()

roots_iterator llvm::GCFunctionInfo::roots_end ( )

inline

Definition at line 145 of file GCMetadata.h.

Referenced by live_end().

roots_size()

size_t llvm::GCFunctionInfo::roots_size ( ) const

inline

Definition at line 146 of file GCMetadata.h.

Referenced by live_size().

setFrameSize()

void llvm::GCFunctionInfo::setFrameSize ( uint64_t  S )

inline

Definition at line 136 of file GCMetadata.h.

size()

size_t llvm::GCFunctionInfo::size ( ) const

inline

Definition at line 141 of file GCMetadata.h.

---

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

• include/llvm/CodeGen/GCMetadata.h
• lib/CodeGen/GCMetadata.cpp