llvm::memtag Namespace Reference

Classes
struct	AllocaInfo
struct	StackInfo
class	StackInfoBuilder

Enumerations
enum class	AllocaInterestingness { kUninteresting , kSafe , kInteresting }

Functions
bool	forAllReachableExits (const DominatorTree &DT, const PostDominatorTree &PDT, const LoopInfo &LI, const AllocaInfo &AInfo, const SmallVectorImpl< Instruction * > &RetVec, llvm::function_ref< void(Instruction *)> Callback)
bool	isStandardLifetime (const SmallVectorImpl< IntrinsicInst * > &LifetimeStart, const SmallVectorImpl< IntrinsicInst * > &LifetimeEnd, const DominatorTree *DT, const LoopInfo *LI, size_t MaxLifetimes)
Instruction *	getUntagLocationIfFunctionExit (Instruction &Inst)
uint64_t	getAllocaSizeInBytes (const AllocaInst &AI)
void	alignAndPadAlloca (memtag::AllocaInfo &Info, llvm::Align Align)
Value *	readRegister (IRBuilder<> &IRB, StringRef Name)
Value *	getFP (IRBuilder<> &IRB)
Value *	getPC (const Triple &TargetTriple, IRBuilder<> &IRB)
Value *	getAndroidSlotPtr (IRBuilder<> &IRB, int Slot)
Value *	getDarwinSlotPtr (IRBuilder<> &IRB, int Slot)
void	annotateDebugRecords (AllocaInfo &Info, unsigned int Tag)
Value *	incrementThreadLong (IRBuilder<> &IRB, Value *ThreadLong, unsigned int Inc, bool IsMemtagDarwin=false)
static DbgVariableRecord *	DynCastToDbgAssign (DbgVariableRecord *DVR)

Enumeration Type Documentation

AllocaInterestingness

enum class llvm::memtag::AllocaInterestingness

strong

Enumerator
kUninteresting
kSafe
kInteresting

Definition at line 65 of file MemoryTaggingSupport.h.

Function Documentation

alignAndPadAlloca()

void llvm::memtag::alignAndPadAlloca	(	memtag::AllocaInfo &	Info,
		llvm::Align	Align )

Definition at line 207 of file MemoryTaggingSupport.cpp.

References llvm::alignTo(), llvm::cast(), llvm::ArrayType::get(), llvm::StructType::get(), getAllocaSizeInBytes(), llvm::Type::getInt8Ty(), and Size.

annotateDebugRecords()

void llvm::memtag::annotateDebugRecords	(	AllocaInfo &	Info,
		unsigned int	Tag )

Definition at line 300 of file MemoryTaggingSupport.cpp.

References llvm::DIExpression::appendOpsToArg(), llvm::dwarf::DW_OP_LLVM_tag_offset, DynCastToDbgAssign(), llvm::for_each(), llvm::DIExpression::prependOpcodes(), and llvm::Tag.

DynCastToDbgAssign()

DbgVariableRecord * llvm::memtag::DynCastToDbgAssign ( DbgVariableRecord * DVR )

static

Definition at line 296 of file MemoryTaggingSupport.cpp.

References llvm::DbgVariableRecord::isDbgAssign().

Referenced by annotateDebugRecords().

forAllReachableExits()

bool llvm::memtag::forAllReachableExits	(	const DominatorTree &	DT,
		const PostDominatorTree &	PDT,
		const LoopInfo &	LI,
		const AllocaInfo &	AInfo,
		const SmallVectorImpl< Instruction * > &	RetVec,
		llvm::function_ref< void(Instruction *)>	Callback )

Definition at line 48 of file MemoryTaggingSupport.cpp.

References llvm::SmallPtrSetImpl< PtrType >::contains(), llvm::PostDominatorTree::dominates(), llvm::SmallVectorTemplateCommon< T, typename >::empty(), llvm::for_each(), llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::isPotentiallyReachableFromMany(), llvm::memtag::AllocaInfo::LastBBLifetime, llvm::memtag::AllocaInfo::LifetimeEnd, llvm::memtag::AllocaInfo::LifetimeStart, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

getAllocaSizeInBytes()

uint64_t llvm::memtag::getAllocaSizeInBytes

(

const AllocaInst &

AI

)

Definition at line 202 of file MemoryTaggingSupport.cpp.

References DL, llvm::AllocaInst::getAllocationSize(), and llvm::Instruction::getDataLayout().

Referenced by alignAndPadAlloca().

getAndroidSlotPtr()

Value * llvm::memtag::getAndroidSlotPtr	(	IRBuilder<> &	IRB,
		int	Slot )

Definition at line 285 of file MemoryTaggingSupport.cpp.

References llvm::IRBuilderBase::CreateCall(), llvm::IRBuilderBase::CreateConstGEP1_32(), llvm::IRBuilderBase::GetInsertBlock(), llvm::IRBuilderBase::getInt8Ty(), llvm::Intrinsic::getOrInsertDeclaration(), llvm::BasicBlock::getParent(), llvm::GlobalValue::getParent(), and llvm::IRBuilderBase::getPtrTy().

Referenced by getSlotPtr().

getDarwinSlotPtr()

Value * llvm::memtag::getDarwinSlotPtr	(	IRBuilder<> &	IRB,
		int	Slot )

Definition at line 266 of file MemoryTaggingSupport.cpp.

References llvm::IRBuilderBase::CreateConstGEP1_32(), llvm::IRBuilderBase::CreateIntrinsic(), llvm::IRBuilderBase::CreateIntToPtr(), llvm::MDNode::get(), llvm::MetadataAsValue::get(), llvm::IRBuilderBase::GetInsertBlock(), llvm::IRBuilderBase::getInt8Ty(), llvm::BasicBlock::getParent(), llvm::GlobalValue::getParent(), and llvm::IRBuilderBase::getPtrTy().

Referenced by getSlotPtr().

getFP()

Value * llvm::memtag::getFP

(

IRBuilder<> &

IRB

)

Definition at line 256 of file MemoryTaggingSupport.cpp.

References llvm::IRBuilderBase::CreateIntrinsic(), llvm::IRBuilderBase::CreatePtrToInt(), F, llvm::IRBuilderBase::GetInsertBlock(), llvm::IRBuilderBase::getIntPtrTy(), llvm::BasicBlock::getParent(), and llvm::IRBuilderBase::getPtrTy().

getPC()

Value * llvm::memtag::getPC	(	const Triple &	TargetTriple,
		IRBuilder<> &	IRB )

Definition at line 248 of file MemoryTaggingSupport.cpp.

References llvm::Triple::aarch64, llvm::IRBuilderBase::CreatePtrToInt(), llvm::Triple::getArch(), llvm::IRBuilderBase::GetInsertBlock(), llvm::IRBuilderBase::getIntPtrTy(), llvm::BasicBlock::getParent(), llvm::GlobalValue::getParent(), and readRegister().

getUntagLocationIfFunctionExit()

Instruction * llvm::memtag::getUntagLocationIfFunctionExit

(

Instruction &

Inst

)

Definition at line 101 of file MemoryTaggingSupport.cpp.

References llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and llvm::isa().

Referenced by llvm::memtag::StackInfoBuilder::visit().

incrementThreadLong()

Value * llvm::memtag::incrementThreadLong	(	IRBuilder<> &	IRB,
		Value *	ThreadLong,
		unsigned int	Inc,
		bool	IsMemtagDarwin = false )

Definition at line 320 of file MemoryTaggingSupport.cpp.

References assert(), llvm::IRBuilderBase::CreateAdd(), llvm::IRBuilderBase::CreateAnd(), llvm::IRBuilderBase::CreateAShr(), llvm::IRBuilderBase::CreateShl(), llvm::IRBuilderBase::CreateXor(), and llvm::Value::getType().

isStandardLifetime()

bool llvm::memtag::isStandardLifetime	(	const SmallVectorImpl< IntrinsicInst * > &	LifetimeStart,
		const SmallVectorImpl< IntrinsicInst * > &	LifetimeEnd,
		const DominatorTree *	DT,
		const LoopInfo *	LI,
		size_t	MaxLifetimes )

Definition at line 88 of file MemoryTaggingSupport.cpp.

References llvm::SmallVectorTemplateCommon< T, typename >::size().

readRegister()

Value * llvm::memtag::readRegister	(	IRBuilder<> &	IRB,
		StringRef	Name )

Definition at line 239 of file MemoryTaggingSupport.cpp.

References llvm::IRBuilderBase::CreateIntrinsic(), llvm::MDNode::get(), llvm::MetadataAsValue::get(), llvm::IRBuilderBase::GetInsertBlock(), llvm::IRBuilderBase::getIntPtrTy(), llvm::BasicBlock::getParent(), and llvm::GlobalValue::getParent().

Referenced by getPC().