llvm::memprof Namespace Reference

Namespaces
namespace	detail

Classes
struct	AllMemProfData
struct	AllocationInfo
struct	CallerCalleePairExtractor
class	CallStack
	Helper class to iterate through stack ids in both metadata (memprof MIB and callsite) and the corresponding ThinLTO summary data structures (CallsiteInfo and MIBInfo). More...
struct	CallStackIdConverter
class	CallStackLookupTrait
class	CallStackRadixTreeBuilder
class	CallStackTrie
	Class to build a trie of call stack contexts for a particular profiled allocation call, along with their associated allocation types. More...
class	CallStackWriterTrait
struct	Frame
struct	FrameIdConverter
class	FrameLookupTrait
struct	FrameStat
class	FrameWriterTrait
struct	GUIDMemProfRecordPair
struct	IndexedAllocationInfo
struct	IndexedCallstackIdConveter
struct	IndexedMemProfData
struct	IndexedMemProfRecord
struct	LinearCallStackIdConverter
struct	LinearFrameIdConverter
struct	LineLocation
struct	LineLocationHash
class	MemProfReader
struct	MemProfRecord
struct	PortableMemInfoBlock
class	RawMemProfReader
class	RecordLookupTrait
class	RecordWriterTrait
class	YAMLMemProfReader

Typedefs
using	MemProfSchema = llvm::SmallVector< Meta, static_cast< int >(Meta::Size)>
using	FrameId = uint64_t
using	LinearFrameId = uint32_t
using	CallStackId = uint64_t
using	LinearCallStackId = uint32_t
using	CallEdgeTy = std::pair< LineLocation, uint64_t >
using	CallStackMap = llvm::DenseMap< uint64_t, llvm::SmallVector< uint64_t > >
using	LocToLocMap = std::unordered_map< LineLocation, LineLocation, LineLocationHash >

Enumerations
enum	IndexedVersion : uint64_t { Version2 = 2 , Version3 = 3 }
enum class	Meta : uint64_t { Start = 0 , MIBEntryDef , Size }

Functions
AllocationType	getAllocType (uint64_t TotalLifetimeAccessDensity, uint64_t AllocCount, uint64_t TotalLifetime)
	Return the allocation type for a given set of memory profile values.
MDNode *	buildCallstackMetadata (ArrayRef< uint64_t > CallStack, LLVMContext &Ctx)
	Build callstack metadata from the provided list of call stack ids.
MDNode *	buildContextSizeMetadata (ArrayRef< ContextTotalSize > ContextSizeInfo, LLVMContext &Ctx)
	Build metadata from the provided list of full stack id and profiled size, to use when reporting of hinted sizes is enabled.
MDNode *	getMIBStackNode (const MDNode *MIB)
	Returns the stack node from an MIB metadata node.
AllocationType	getMIBAllocType (const MDNode *MIB)
	Returns the allocation type from an MIB metadata node.
std::string	getAllocTypeAttributeString (AllocationType Type)
	Returns the string to use in attributes with the given type.
bool	hasSingleAllocType (uint8_t AllocTypes)
	True if the AllocTypes bitmask contains just a single type.
MemProfSchema	getFullSchema ()
MemProfSchema	getHotColdSchema ()
Expected< MemProfSchema >	readMemProfSchema (const unsigned char *&Buffer)
template<typename FrameIdTy >
llvm::DenseMap< FrameIdTy, FrameStat >	computeFrameHistogram (llvm::MapVector< CallStackId, llvm::SmallVector< FrameIdTy > > &MemProfCallStackData)
DenseMap< uint64_t, SmallVector< CallEdgeTy, 0 > >	extractCallsFromIR (Module &M, const TargetLibraryInfo &TLI, function_ref< bool(uint64_t)> IsPresentInProfile=[](uint64_t) { return true;})
DenseMap< uint64_t, LocToLocMap >	computeUndriftMap (Module &M, IndexedInstrProfReader *MemProfReader, const TargetLibraryInfo &TLI)
static size_t	serializedSizeV2 (const IndexedAllocationInfo &IAI, const MemProfSchema &Schema)
static size_t	serializedSizeV3 (const IndexedAllocationInfo &IAI, const MemProfSchema &Schema)
static size_t	serializedSizeV2 (const IndexedMemProfRecord &Record, const MemProfSchema &Schema)
static size_t	serializedSizeV3 (const IndexedMemProfRecord &Record, const MemProfSchema &Schema)
static void	serializeV2 (const IndexedMemProfRecord &Record, const MemProfSchema &Schema, raw_ostream &OS)
static void	serializeV3 (const IndexedMemProfRecord &Record, const MemProfSchema &Schema, raw_ostream &OS, llvm::DenseMap< CallStackId, LinearCallStackId > &MemProfCallStackIndexes)
static IndexedMemProfRecord	deserializeV2 (const MemProfSchema &Schema, const unsigned char *Ptr)
static IndexedMemProfRecord	deserializeV3 (const MemProfSchema &Schema, const unsigned char *Ptr)
template llvm::DenseMap< FrameId, FrameStat >	computeFrameHistogram< FrameId > (llvm::MapVector< CallStackId, llvm::SmallVector< FrameId > > &MemProfCallStackData)
template llvm::DenseMap< LinearFrameId, FrameStat >	computeFrameHistogram< LinearFrameId > (llvm::MapVector< CallStackId, llvm::SmallVector< LinearFrameId > > &MemProfCallStackData)

Variables
constexpr uint64_t	MinimumSupportedVersion = Version2
constexpr uint64_t	MaximumSupportedVersion = Version3

Typedef Documentation

CallEdgeTy

using llvm::memprof::CallEdgeTy = typedef std::pair<LineLocation, uint64_t>

Definition at line 913 of file MemProf.h.

CallStackId

using llvm::memprof::CallStackId = typedef uint64_t

Definition at line 329 of file MemProf.h.

CallStackMap

using llvm::memprof::CallStackMap = typedef llvm::DenseMap<uint64_t, llvm::SmallVector<uint64_t> >

Definition at line 104 of file MemProfReader.h.

FrameId

using llvm::memprof::FrameId = typedef uint64_t

Definition at line 213 of file MemProf.h.

LinearCallStackId

using llvm::memprof::LinearCallStackId = typedef uint32_t

Definition at line 332 of file MemProf.h.

LinearFrameId

using llvm::memprof::LinearFrameId = typedef uint32_t

Definition at line 215 of file MemProf.h.

LocToLocMap

using llvm::memprof::LocToLocMap = typedef std::unordered_map<LineLocation, LineLocation, LineLocationHash>

Definition at line 81 of file MemProfiler.h.

MemProfSchema

using llvm::memprof::MemProfSchema = typedef llvm::SmallVector<Meta, static_cast<int>(Meta::Size)>

Definition at line 53 of file MemProf.h.

Enumeration Type Documentation

IndexedVersion

enum llvm::memprof::IndexedVersion : uint64_t

Enumerator
Version2
Version3

Definition at line 31 of file MemProf.h.

Meta

enum class llvm::memprof::Meta : uint64_t

strong

Enumerator
Start
MIBEntryDef
Size

Definition at line 45 of file MemProf.h.

Function Documentation

buildCallstackMetadata()

MDNode * llvm::memprof::buildCallstackMetadata	(	ArrayRef< uint64_t >	CallStack,
		LLVMContext &	Ctx
	)

Build callstack metadata from the provided list of call stack ids.

Returns the resulting metadata node.

Definition at line 70 of file MemoryProfileInfo.cpp.

References llvm::MDNode::get(), llvm::ValueAsMetadata::get(), llvm::Type::getInt64Ty(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::SmallVectorImpl< T >::reserve().

Referenced by addCallsiteMetadata(), and createMIBNode().

buildContextSizeMetadata()

MDNode * llvm::memprof::buildContextSizeMetadata	(	ArrayRef< ContextTotalSize >	ContextSizeInfo,
		LLVMContext &	Ctx
	)

Build metadata from the provided list of full stack id and profiled size, to use when reporting of hinted sizes is enabled.

computeFrameHistogram()

template<typename FrameIdTy >

llvm::DenseMap< FrameIdTy, FrameStat > llvm::memprof::computeFrameHistogram

(

llvm::MapVector< CallStackId, llvm::SmallVector< FrameIdTy > > &

MemProfCallStackData

)

Definition at line 515 of file MemProf.cpp.

References E, and I.

Referenced by writeMemProfV3().

computeFrameHistogram< FrameId >()

template llvm::DenseMap< FrameId, FrameStat > llvm::memprof::computeFrameHistogram< FrameId >

(

llvm::MapVector< CallStackId, llvm::SmallVector< FrameId > > &

MemProfCallStackData

)

computeFrameHistogram< LinearFrameId >()

template llvm::DenseMap< LinearFrameId, FrameStat > llvm::memprof::computeFrameHistogram< LinearFrameId >

(

llvm::MapVector< CallStackId, llvm::SmallVector< LinearFrameId > > &

MemProfCallStackData

)

Referenced by writeMemoryProfileRadixTree().

computeUndriftMap()

DenseMap< uint64_t, LocToLocMap > llvm::memprof::computeUndriftMap	(	Module &	M,
		IndexedInstrProfReader *	MemProfReader,
		const TargetLibraryInfo &	TLI
	)

Definition at line 910 of file MemProfiler.cpp.

References A, assert(), B, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::contains(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), extractCallsFromIR(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::try_emplace().

Referenced by llvm::MemProfUsePass::run().

deserializeV2()

static IndexedMemProfRecord llvm::memprof::deserializeV2 ( const MemProfSchema &  Schema, const unsigned char *  Ptr  )

static

Definition at line 152 of file MemProf.cpp.

References I, Ptr, and llvm::memprof::PortableMemInfoBlock::serializedSize().

Referenced by llvm::memprof::IndexedMemProfRecord::deserialize().

deserializeV3()

static IndexedMemProfRecord llvm::memprof::deserializeV3 ( const MemProfSchema &  Schema, const unsigned char *  Ptr  )

static

Definition at line 183 of file MemProf.cpp.

References I, Ptr, and llvm::memprof::PortableMemInfoBlock::serializedSize().

Referenced by llvm::memprof::IndexedMemProfRecord::deserialize().

extractCallsFromIR()

DenseMap< uint64_t, SmallVector< CallEdgeTy, 0 > > llvm::memprof::extractCallsFromIR	(	Module &	M,
		const TargetLibraryInfo &	TLI,
		function_ref< bool(uint64_t)>	IsPresentInProfile = [](uint64_t) { return true; }
	)

Definition at line 835 of file MemProfiler.cpp.

References assert(), llvm::StringRef::empty(), F, llvm::memprof::IndexedMemProfRecord::getGUID(), I, isAllocationWithHotColdVariant(), llvm::sort(), and llvm::unique().

Referenced by computeUndriftMap().

getAllocType()

AllocationType llvm::memprof::getAllocType	(	uint64_t	TotalLifetimeAccessDensity,
		uint64_t	AllocCount,
		uint64_t	TotalLifetime
	)

Return the allocation type for a given set of memory profile values.

Definition at line 49 of file MemoryProfileInfo.cpp.

References MemProfAveLifetimeColdThreshold, MemProfLifetimeAccessDensityColdThreshold, and MemProfMinAveLifetimeAccessDensityHotThreshold.

Referenced by addCallStack().

getAllocTypeAttributeString()

std::string llvm::memprof::getAllocTypeAttributeString

(

AllocationType

Type

)

Returns the string to use in attributes with the given type.

Definition at line 103 of file MemoryProfileInfo.cpp.

References assert(), and llvm_unreachable.

Referenced by addAllocTypeAttribute(), llvm::memprof::CallStackTrie::addSingleAllocTypeAttribute(), createMIBNode(), and llvm::MemProfUsePass::run().

getFullSchema()

MemProfSchema llvm::memprof::getFullSchema

(

)

Definition at line 13 of file MemProf.cpp.

References llvm::List.

Referenced by llvm::memprof::IndexedAllocationInfo::IndexedAllocationInfo(), writeMemProfV2(), and writeMemProfV3().

getHotColdSchema()

MemProfSchema llvm::memprof::getHotColdSchema

(

)

Definition at line 21 of file MemProf.cpp.

Referenced by writeMemProfV2(), and writeMemProfV3().

getMIBAllocType()

AllocationType llvm::memprof::getMIBAllocType

(

const MDNode *

MIB

)

Returns the allocation type from an MIB metadata node.

Definition at line 88 of file MemoryProfileInfo.cpp.

References assert(), llvm::MDNode::getNumOperands(), and llvm::MDNode::getOperand().

Referenced by llvm::memprof::CallStackTrie::addCallStack(), and computeFunctionSummary().

getMIBStackNode()

MDNode * llvm::memprof::getMIBStackNode

(

const MDNode *

MIB

)

Returns the stack node from an MIB metadata node.

Definition at line 82 of file MemoryProfileInfo.cpp.

References assert(), llvm::MDNode::getNumOperands(), and llvm::MDNode::getOperand().

Referenced by llvm::memprof::CallStackTrie::addCallStack(), computeFunctionSummary(), and propagateMemProfHelper().

hasSingleAllocType()

bool llvm::memprof::hasSingleAllocType

(

uint8_t

AllocTypes

)

True if the AllocTypes bitmask contains just a single type.

Definition at line 127 of file MemoryProfileInfo.cpp.

References assert(), and llvm::popcount().

Referenced by llvm::memprof::CallStackTrie::buildAndAttachMIBMetadata().

readMemProfSchema()

Expected< MemProfSchema > llvm::memprof::readMemProfSchema

(

const unsigned char *&

Buffer

)

Definition at line 267 of file MemProf.cpp.

References I, llvm::malformed, Ptr, Size, and llvm::Tag.

serializedSizeV2() [1/2]

static size_t llvm::memprof::serializedSizeV2 ( const IndexedAllocationInfo &  IAI, const MemProfSchema &  Schema  )

static

Definition at line 26 of file MemProf.cpp.

References llvm::memprof::PortableMemInfoBlock::serializedSize(), and Size.

Referenced by llvm::memprof::IndexedAllocationInfo::serializedSize(), and llvm::memprof::IndexedMemProfRecord::serializedSize().

serializedSizeV2() [2/2]

static size_t llvm::memprof::serializedSizeV2 ( const IndexedMemProfRecord &  Record, const MemProfSchema &  Schema  )

static

Definition at line 57 of file MemProf.cpp.

References N, and Version2.

serializedSizeV3() [1/2]

static size_t llvm::memprof::serializedSizeV3 ( const IndexedAllocationInfo &  IAI, const MemProfSchema &  Schema  )

static

Definition at line 36 of file MemProf.cpp.

References llvm::memprof::PortableMemInfoBlock::serializedSize(), and Size.

Referenced by llvm::memprof::IndexedAllocationInfo::serializedSize(), and llvm::memprof::IndexedMemProfRecord::serializedSize().

serializedSizeV3() [2/2]

static size_t llvm::memprof::serializedSizeV3 ( const IndexedMemProfRecord &  Record, const MemProfSchema &  Schema  )

static

Definition at line 71 of file MemProf.cpp.

References N, and Version3.

serializeV2()

static void llvm::memprof::serializeV2 ( const IndexedMemProfRecord &  Record, const MemProfSchema &  Schema, raw_ostream &  OS  )

static

Definition at line 96 of file MemProf.cpp.

References llvm::little, N, and OS.

Referenced by llvm::memprof::IndexedMemProfRecord::serialize().

serializeV3()

static void llvm::memprof::serializeV3 ( const IndexedMemProfRecord &  Record, const MemProfSchema &  Schema, raw_ostream &  OS, llvm::DenseMap< CallStackId, LinearCallStackId > &  MemProfCallStackIndexes  )

static

Definition at line 114 of file MemProf.cpp.

References assert(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::contains(), llvm::little, N, and OS.

Referenced by llvm::memprof::IndexedMemProfRecord::serialize().

Variable Documentation

MaximumSupportedVersion

constexpr uint64_t llvm::memprof::MaximumSupportedVersion = Version3

constexpr

Definition at line 40 of file MemProf.h.

Referenced by llvm::IndexedMemProfReader::deserialize(), llvm::IndexedMemProfReader::getMemProfRecord(), and writeMemProf().

MinimumSupportedVersion

constexpr uint64_t llvm::memprof::MinimumSupportedVersion = Version2

constexpr

Definition at line 39 of file MemProf.h.

Referenced by llvm::IndexedMemProfReader::deserialize(), llvm::IndexedMemProfReader::getMemProfRecord(), and writeMemProf().