Reader for the indexed binary instrprof format. More...

#include "llvm/ProfileData/InstrProfReader.h"

Inheritance diagram for llvm::IndexedInstrProfReader:

Public Member Functions
	IndexedInstrProfReader (std::unique_ptr< MemoryBuffer > DataBuffer, std::unique_ptr< MemoryBuffer > RemappingBuffer=nullptr)

	IndexedInstrProfReader (const IndexedInstrProfReader &)=delete

IndexedInstrProfReader &	operator= (const IndexedInstrProfReader &)=delete

uint64_t	getVersion () const override
	Return the profile version.

bool	isIRLevelProfile () const override

bool	hasCSIRLevelProfile () const override

bool	instrEntryBBEnabled () const override

bool	instrLoopEntriesEnabled () const override
	Return true if the profile instruments all loop entries.

bool	hasSingleByteCoverage () const override
	Return true if the profile has single byte counters representing coverage.

bool	functionEntryOnly () const override
	Return true if the profile only instruments function entries.

bool	hasMemoryProfile () const override
	Return true if profile includes a memory profile.

bool	hasTemporalProfile () const override
	Return true if this has a temporal profile.

InstrProfKind	getProfileKind () const override
	Returns a BitsetEnum describing the attributes of the indexed instr profile.

Error	readHeader () override
	Read the file header.

Error	readNextRecord (NamedInstrProfRecord &Record) override
	Read a single record.

Expected< NamedInstrProfRecord >	getInstrProfRecord (StringRef FuncName, uint64_t FuncHash, StringRef DeprecatedFuncName="", uint64_t *MismatchedFuncSum=nullptr)
	Return the NamedInstrProfRecord associated with FuncName and FuncHash.

Expected< memprof::MemProfRecord >	getMemProfRecord (uint64_t FuncNameHash)
	Return the memprof record for the function identified by llvm::md5(Name).

DenseMap< uint64_t, SmallVector< memprof::CallEdgeTy, 0 > >	getMemProfCallerCalleePairs ()

memprof::AllMemProfData	getAllMemProfData () const

Error	getFunctionCounts (StringRef FuncName, uint64_t FuncHash, std::vector< uint64_t > &Counts)
	Fill Counts with the profile data for the given function name.

Error	getFunctionBitmap (StringRef FuncName, uint64_t FuncHash, BitVector &Bitmap)
	Fill Bitmap with the profile data for the given function name.

uint64_t	getMaximumFunctionCount (bool UseCS)
	Return the maximum of all known function counts.

void	setValueProfDataEndianness (llvm::endianness Endianness)

InstrProfSymtab &	getSymtab () override
	Return the PGO symtab.

ProfileSummary &	getSummary (bool UseCS)
	Return the profile summary.

memprof::MemProfSummary *	getMemProfSummary () const
	Return the MemProf summary. Will be null if unavailable (version < 4).

memprof::DataAccessProfData *	getDataAccessProfileData () const
	Returns non-owned pointer to the data access profile data.

Error	readBinaryIds (std::vector< llvm::object::BuildID > &BinaryIds) override
	Read a list of binary ids.

Error	printBinaryIds (raw_ostream &OS) override
	Print binary ids.

Public Member Functions inherited from llvm::InstrProfReader
	InstrProfReader ()=default

virtual	~InstrProfReader ()=default

virtual Error	readHeader ()=0
	Read the header. Required before reading first record.

virtual Error	readNextRecord (NamedInstrProfRecord &Record)=0
	Read a single record.

virtual Error	readBinaryIds (std::vector< llvm::object::BuildID > &BinaryIds)
	Read a list of binary ids.

virtual Error	printBinaryIds (raw_ostream &OS)
	Print binary ids.

InstrProfIterator	begin ()
	Iterator over profile data.

InstrProfIterator	end ()

virtual uint64_t	getVersion () const =0
	Return the profile version.

virtual bool	isIRLevelProfile () const =0

virtual bool	hasCSIRLevelProfile () const =0

virtual bool	instrEntryBBEnabled () const =0

virtual bool	instrLoopEntriesEnabled () const =0
	Return true if the profile instruments all loop entries.

virtual bool	hasSingleByteCoverage () const =0
	Return true if the profile has single byte counters representing coverage.

virtual bool	functionEntryOnly () const =0
	Return true if the profile only instruments function entries.

virtual bool	hasMemoryProfile () const =0
	Return true if profile includes a memory profile.

virtual bool	hasTemporalProfile () const =0
	Return true if this has a temporal profile.

virtual InstrProfKind	getProfileKind () const =0
	Returns a BitsetEnum describing the attributes of the profile.

virtual InstrProfSymtab &	getSymtab ()=0
	Return the PGO symtab.

LLVM_ABI void	accumulateCounts (CountSumOrPercent &Sum, bool IsCS)
	Compute the sum of counts and return in Sum.

bool	isEOF ()
	Return true if the reader has finished reading the profile data.

bool	hasError ()
	Return true if the reader encountered an error reading profiling data.

Error	getError ()
	Get the current error.

virtual SmallVector< TemporalProfTraceTy > &	getTemporalProfTraces (std::optional< uint64_t > Weight={})

uint64_t	getTemporalProfTraceStreamSize ()

Static Public Member Functions
static bool	hasFormat (const MemoryBuffer &DataBuffer)
	Return true if the given buffer is in an indexed instrprof format.

static Expected< std::unique_ptr< IndexedInstrProfReader > >	create (const Twine &Path, vfs::FileSystem &FS, const Twine &RemappingPath="")
	Factory method to create an indexed reader.

static Expected< std::unique_ptr< IndexedInstrProfReader > >	create (std::unique_ptr< MemoryBuffer > Buffer, std::unique_ptr< MemoryBuffer > RemappingBuffer=nullptr)

Static Public Member Functions inherited from llvm::InstrProfReader
static LLVM_ABI Expected< std::unique_ptr< InstrProfReader > >	create (const Twine &Path, vfs::FileSystem &FS, const InstrProfCorrelator Correlator=nullptr, const object::BuildIDFetcher BIDFetcher=nullptr, const InstrProfCorrelator::ProfCorrelatorKind BIDFetcherCorrelatorKind=InstrProfCorrelator::ProfCorrelatorKind::NONE, std::function< void(Error)> Warn=nullptr)
	Factory method to create an appropriately typed reader for the given instrprof file.

static LLVM_ABI Expected< std::unique_ptr< InstrProfReader > >	create (std::unique_ptr< MemoryBuffer > Buffer, const InstrProfCorrelator Correlator=nullptr, const object::BuildIDFetcher BIDFetcher=nullptr, const InstrProfCorrelator::ProfCorrelatorKind BIDFetcherCorrelatorKind=InstrProfCorrelator::ProfCorrelatorKind::NONE, std::function< void(Error)> Warn=nullptr)

Additional Inherited Members
Protected Member Functions inherited from llvm::InstrProfReader
Error	error (instrprof_error Err, const std::string &ErrMsg="")
	Set the current error and return same.

Error	error (Error &&E)

Error	success ()
	Clear the current error and return a successful one.

Protected Attributes inherited from llvm::InstrProfReader
std::unique_ptr< InstrProfSymtab >	Symtab

SmallVector< TemporalProfTraceTy >	TemporalProfTraces
	A list of temporal profile traces.

uint64_t	TemporalProfTraceStreamSize = 0
	The total number of temporal profile traces seen.

Detailed Description

Reader for the indexed binary instrprof format.

Definition at line 744 of file InstrProfReader.h.

Constructor & Destructor Documentation

◆ IndexedInstrProfReader() [1/2]

llvm::IndexedInstrProfReader::IndexedInstrProfReader	(	std::unique_ptr< MemoryBuffer >	DataBuffer,
		std::unique_ptr< MemoryBuffer >	RemappingBuffer = `nullptr`
	)

inline

Definition at line 776 of file InstrProfReader.h.

References llvm::move().

◆ IndexedInstrProfReader() [2/2]

llvm::IndexedInstrProfReader::IndexedInstrProfReader ( const IndexedInstrProfReader & )

delete

Member Function Documentation

◆ create() [1/2]

Expected< std::unique_ptr< IndexedInstrProfReader > > IndexedInstrProfReader::create	(	const Twine &	Path,
		vfs::FileSystem &	FS,
		const Twine &	RemappingPath = `""`
	)

static

Factory method to create an indexed reader.

Definition at line 203 of file InstrProfReader.cpp.

References create(), llvm::setupMemoryBuffer(), and llvm::Twine::str().

Referenced by annotateAllFunctions(), create(), llvm::coverage::CoverageMapping::load(), and llvm::MemProfUsePass::run().

◆ create() [2/2]

Expected< std::unique_ptr< IndexedInstrProfReader > > IndexedInstrProfReader::create	(	std::unique_ptr< MemoryBuffer >	Buffer,
		std::unique_ptr< MemoryBuffer >	RemappingBuffer = `nullptr`
	)

static

Definition at line 225 of file InstrProfReader.cpp.

References llvm::bad_magic, hasFormat(), and initializeReader().

◆ functionEntryOnly()

bool llvm::IndexedInstrProfReader::functionEntryOnly ( ) const

inlineoverridevirtual

Return true if the profile only instruments function entries.

Implements llvm::InstrProfReader.

Definition at line 803 of file InstrProfReader.h.

References Index.

◆ getAllMemProfData()

memprof::AllMemProfData llvm::IndexedInstrProfReader::getAllMemProfData ( ) const

inline

Definition at line 848 of file InstrProfReader.h.

References llvm::IndexedMemProfReader::getAllMemProfData().

◆ getDataAccessProfileData()

memprof::DataAccessProfData * llvm::IndexedInstrProfReader::getDataAccessProfileData ( ) const

inline

Returns non-owned pointer to the data access profile data.

Will be null if unavailable (version < 4).

Definition at line 910 of file InstrProfReader.h.

References llvm::IndexedMemProfReader::getDataAccessProfileData().

◆ getFunctionBitmap()

Error IndexedInstrProfReader::getFunctionBitmap	(	StringRef	FuncName,
		uint64_t	FuncHash,
		BitVector &	Bitmap
	)

Fill Bitmap with the profile data for the given function name.

Definition at line 1583 of file InstrProfReader.cpp.

References llvm::support::aligned, llvm::BitVector::apply(), assert(), error, getInstrProfRecord(), I, llvm::little, N, llvm::support::endian::read(), llvm::BitVector::resize(), llvm::InstrProfReader::success(), and X.

◆ getFunctionCounts()

Error IndexedInstrProfReader::getFunctionCounts	(	StringRef	FuncName,
		uint64_t	FuncHash,
		std::vector< uint64_t > &	Counts
	)

Fill Counts with the profile data for the given function name.

Definition at line 1572 of file InstrProfReader.cpp.

References error, getInstrProfRecord(), and llvm::InstrProfReader::success().

◆ getInstrProfRecord()

Expected< NamedInstrProfRecord > IndexedInstrProfReader::getInstrProfRecord	(	StringRef	FuncName,
		uint64_t	FuncHash,
		StringRef	DeprecatedFuncName = `""`,
		uint64_t *	MismatchedFuncSum = `nullptr`
	)

Return the NamedInstrProfRecord associated with FuncName and FuncHash.

When return a hash_mismatch error and MismatchedFuncSum is not nullptr, the sum of all counters in the mismatched function will be set to MismatchedFuncSum. If there are multiple instances of mismatched functions, MismatchedFuncSum returns the maximum. If FuncName is not found, try to lookup DeprecatedFuncName to handle profiles built by older compilers.

Definition at line 1372 of file InstrProfReader.cpp.

References llvm::Data, error, llvm::handleErrors(), llvm::NamedInstrProfRecord::hasCSFlagInHash(), llvm::hash_mismatch, I, if(), llvm::Error::success(), and llvm::unknown_function.

Referenced by getFunctionBitmap(), and getFunctionCounts().

◆ getMaximumFunctionCount()

uint64_t llvm::IndexedInstrProfReader::getMaximumFunctionCount ( bool UseCS )

inline

Return the maximum of all known function counts.

UseCS indicates whether to use the context-sensitive count.

Definition at line 862 of file InstrProfReader.h.

References assert().

◆ getMemProfCallerCalleePairs()

DenseMap< uint64_t, SmallVector< memprof::CallEdgeTy, 0 > > llvm::IndexedInstrProfReader::getMemProfCallerCalleePairs ( )

inline

Definition at line 844 of file InstrProfReader.h.

References llvm::IndexedMemProfReader::getMemProfCallerCalleePairs().

◆ getMemProfRecord()

Expected< memprof::MemProfRecord > llvm::IndexedInstrProfReader::getMemProfRecord ( uint64_t FuncNameHash )

inline

Return the memprof record for the function identified by llvm::md5(Name).

Definition at line 839 of file InstrProfReader.h.

References llvm::IndexedMemProfReader::getMemProfRecord().

◆ getMemProfSummary()

memprof::MemProfSummary * llvm::IndexedInstrProfReader::getMemProfSummary ( ) const

inline

Return the MemProf summary. Will be null if unavailable (version < 4).

Definition at line 904 of file InstrProfReader.h.

References llvm::IndexedMemProfReader::getSummary().

◆ getProfileKind()

InstrProfKind llvm::IndexedInstrProfReader::getProfileKind ( ) const

inlineoverridevirtual

Returns a BitsetEnum describing the attributes of the indexed instr profile.

Implements llvm::InstrProfReader.

Definition at line 813 of file InstrProfReader.h.

References Index.

◆ getSummary()

ProfileSummary & llvm::IndexedInstrProfReader::getSummary ( bool UseCS )

inline

Return the profile summary.

UseCS indicates whether to use the context-sensitive summary.

Definition at line 893 of file InstrProfReader.h.

References assert().

◆ getSymtab()

InstrProfSymtab & IndexedInstrProfReader::getSymtab ( )

overridevirtual

Return the PGO symtab.

There are three different readers: Raw, Text, and Indexed profile readers. The first two types of readers are used only by llvm-profdata tool, while the indexed profile reader is also used by llvm-cov tool and the compiler ( backend or frontend). Since creating PGO symtab can create significant runtime and memory overhead (as it touches data for the whole program), InstrProfSymtab for the indexed profile reader should be created on demand and it is recommended to be only used for dumping purpose with llvm-proftool, not with the compiler.

Implements llvm::InstrProfReader.

Definition at line 1351 of file InstrProfReader.cpp.

References llvm::consumeError(), error, llvm::InstrProfReader::Symtab, and llvm::InstrProfError::take().