llvm::memprof Namespace Reference

Namespaces
namespace	detail

Classes
struct	AllocationInfo
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	IndexedAllocationInfo
struct	IndexedMemProfData
struct	IndexedMemProfRecord
struct	LinearCallStackIdConverter
struct	LinearFrameIdConverter
class	MemProfReader
struct	MemProfRecord
struct	PortableMemInfoBlock
class	RawMemProfReader
class	RecordLookupTrait
class	RecordWriterTrait

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	CallStackMap = llvm::DenseMap< uint64_t, llvm::SmallVector< uint64_t > >

Enumerations
enum	IndexedVersion : uint64_t { Version0 = 0 , Version1 = 1 , 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 *	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)
CallStackId	hashCallStack (ArrayRef< FrameId > CS)
llvm::DenseMap< FrameId, FrameStat >	computeFrameHistogram (llvm::MapVector< CallStackId, llvm::SmallVector< FrameId > > &MemProfCallStackData)
void	verifyIndexedMemProfRecord (const IndexedMemProfRecord &Record)
void	verifyFunctionProfileData (const llvm::MapVector< GlobalValue::GUID, IndexedMemProfRecord > &FunctionProfileData)
static size_t	serializedSizeV0 (const IndexedAllocationInfo &IAI, const MemProfSchema &Schema)
static size_t	serializedSizeV2 (const IndexedAllocationInfo &IAI, const MemProfSchema &Schema)
static size_t	serializedSizeV3 (const IndexedAllocationInfo &IAI, const MemProfSchema &Schema)
static size_t	serializedSizeV0 (const IndexedMemProfRecord &Record, 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	serializeV0 (const IndexedMemProfRecord &Record, const MemProfSchema &Schema, raw_ostream &OS)
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	deserializeV0 (const MemProfSchema &Schema, const unsigned char *Ptr)
static IndexedMemProfRecord	deserializeV2 (const MemProfSchema &Schema, const unsigned char *Ptr)
static IndexedMemProfRecord	deserializeV3 (const MemProfSchema &Schema, const unsigned char *Ptr)

Variables
constexpr uint64_t	MinimumSupportedVersion = Version0
constexpr uint64_t	MaximumSupportedVersion = Version3

Typedef Documentation

CallStackId

using llvm::memprof::CallStackId = typedef uint64_t

Definition at line 333 of file MemProf.h.

CallStackMap

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

Definition at line 132 of file MemProfReader.h.

FrameId

using llvm::memprof::FrameId = typedef uint64_t

Definition at line 198 of file MemProf.h.

LinearCallStackId

using llvm::memprof::LinearCallStackId = typedef uint32_t

Definition at line 336 of file MemProf.h.

LinearFrameId

using llvm::memprof::LinearFrameId = typedef uint32_t

Definition at line 200 of file MemProf.h.

MemProfSchema

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

Definition at line 50 of file MemProf.h.

Enumeration Type Documentation

IndexedVersion

enum llvm::memprof::IndexedVersion : uint64_t

Enumerator
Version0
Version1
Version2
Version3

Definition at line 24 of file MemProf.h.

Meta

enum class llvm::memprof::Meta : uint64_t

strong

Enumerator
Start
MIBEntryDef
Size

Definition at line 42 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 65 of file MemoryProfileInfo.cpp.

References llvm::MDNode::get(), llvm::ValueAsMetadata::get(), and llvm::Type::getInt64Ty().

Referenced by addCallsiteMetadata(), and createMIBNode().

computeFrameHistogram()

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

(

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

MemProfCallStackData

)

Definition at line 616 of file MemProf.cpp.

References E, and I.

Referenced by writeMemProfV3().

deserializeV0()

static IndexedMemProfRecord llvm::memprof::deserializeV0 ( const MemProfSchema &  Schema, const unsigned char *  Ptr  )

static

Definition at line 214 of file MemProf.cpp.

References hashCallStack(), I, Ptr, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::SmallVectorImpl< T >::reserve(), and llvm::memprof::PortableMemInfoBlock::serializedSize().

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

deserializeV2()

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

static

Definition at line 258 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 289 of file MemProf.cpp.

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

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

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 44 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 97 of file MemoryProfileInfo.cpp.

References assert(), and llvm_unreachable.

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

getFullSchema()

MemProfSchema llvm::memprof::getFullSchema

(

)

Definition at line 13 of file MemProf.cpp.

References llvm::List.

Referenced by writeMemProfV0(), writeMemProfV1(), 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 82 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 76 of file MemoryProfileInfo.cpp.

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

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

hashCallStack()

CallStackId llvm::memprof::hashCallStack

(

ArrayRef< FrameId >

CS

)

Definition at line 402 of file MemProf.cpp.

References llvm::HashBuilder< HasherT, Endianness >::add(), F, llvm::HashBuilderBase< HasherT >::final(), and llvm::little.

Referenced by deserializeV0(), llvm::memprof::MemProfReader::MemProfReader(), and verifyIndexedMemProfRecord().

hasSingleAllocType()

bool llvm::memprof::hasSingleAllocType

(

uint8_t

AllocTypes

)

True if the AllocTypes bitmask contains just a single type.

Definition at line 121 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 376 of file MemProf.cpp.

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

serializedSizeV0() [1/2]

static size_t llvm::memprof::serializedSizeV0 ( const IndexedAllocationInfo &  IAI, const MemProfSchema &  Schema  )

static

Definition at line 26 of file MemProf.cpp.

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

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

serializedSizeV0() [2/2]

static size_t llvm::memprof::serializedSizeV0 ( const IndexedMemProfRecord &  Record, const MemProfSchema &  Schema  )

static

Definition at line 72 of file MemProf.cpp.

References N, and Version0.

serializedSizeV2() [1/2]

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

static

Definition at line 38 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 89 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 48 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 103 of file MemProf.cpp.

References N, and Version3.

serializeV0()

static void llvm::memprof::serializeV0 ( const IndexedMemProfRecord &  Record, const MemProfSchema &  Schema, raw_ostream &  OS  )

static

Definition at line 131 of file MemProf.cpp.

References llvm::little, N, and OS.

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

serializeV2()

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

static

Definition at line 154 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 172 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().

verifyFunctionProfileData()

void llvm::memprof::verifyFunctionProfileData

(

const llvm::MapVector< GlobalValue::GUID, IndexedMemProfRecord > &

FunctionProfileData

)

Definition at line 638 of file MemProf.cpp.

References verifyIndexedMemProfRecord().

verifyIndexedMemProfRecord()

void llvm::memprof::verifyIndexedMemProfRecord

(

const IndexedMemProfRecord &

Record

)

Definition at line 631 of file MemProf.cpp.

References assert(), and hashCallStack().

Referenced by verifyFunctionProfileData().

Variable Documentation

MaximumSupportedVersion

constexpr uint64_t llvm::memprof::MaximumSupportedVersion = Version3

constexpr

Definition at line 37 of file MemProf.h.

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

MinimumSupportedVersion

constexpr uint64_t llvm::memprof::MinimumSupportedVersion = Version0

constexpr

Definition at line 36 of file MemProf.h.

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