Base class and interface for reading profiling data of any known instrprof format. More...

#include "llvm/ProfileData/InstrProfReader.h"

Inheritance diagram for llvm::InstrProfReader:

[legend]

Collaboration diagram for llvm::InstrProfReader:

Public Member Functions
	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	useDebugInfoCorrelate () const
	Return true if we must provide debug info to create PGO profiles.

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

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

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.

Static Public Member Functions
static Expected< std::unique_ptr< InstrProfReader > >	create (const Twine &Path, vfs::FileSystem &FS, const InstrProfCorrelator *Correlator=nullptr)
	Factory method to create an appropriately typed reader for the given instrprof file.

static Expected< std::unique_ptr< InstrProfReader > >	create (std::unique_ptr< MemoryBuffer > Buffer, const InstrProfCorrelator *Correlator=nullptr)

Protected Member Functions
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
std::unique_ptr< InstrProfSymtab >	Symtab

Detailed Description

Base class and interface for reading profiling data of any known instrprof format.

Provides an iterator over NamedInstrProfRecords.

Definition at line 91 of file InstrProfReader.h.

Constructor & Destructor Documentation

◆ InstrProfReader()

llvm::InstrProfReader::InstrProfReader ( )

default

◆ ~InstrProfReader()

virtual llvm::InstrProfReader::~InstrProfReader ( )

virtualdefault

Member Function Documentation

◆ accumulateCounts()

void InstrProfReader::accumulateCounts	(	CountSumOrPercent &	Sum,
		bool	IsCS
	)

Compute the sum of counts and return in Sum.

Definition at line 1211 of file InstrProfReader.cpp.

References llvm::NamedInstrProfRecord::hasCSFlagInHash(), isIRLevelProfile(), and llvm::CountSumOrPercent::NumEntries.

◆ begin()

InstrProfIterator llvm::InstrProfReader::begin ( )

inline

Iterator over profile data.

Definition at line 114 of file InstrProfReader.h.

◆ create() [1/2]

Expected< std::unique_ptr< InstrProfReader > > InstrProfReader::create	(	const Twine &	Path,
		vfs::FileSystem &	FS,
		const InstrProfCorrelator *	Correlator = `nullptr`
	)

static

Factory method to create an appropriately typed reader for the given instrprof file.

Definition at line 165 of file InstrProfReader.cpp.

References create(), E, and setupMemoryBuffer().

Referenced by llvm::OverlapStats::accumulateCounts(), and create().

◆ create() [2/2]

Expected< std::unique_ptr< InstrProfReader > > InstrProfReader::create	(	std::unique_ptr< MemoryBuffer >	Buffer,
		const InstrProfCorrelator *	Correlator = `nullptr`
	)

static

Definition at line 175 of file InstrProfReader.cpp.

References E, llvm::empty_raw_profile, llvm::TextInstrProfReader::hasFormat(), llvm::RawInstrProfReader< IntPtrT >::hasFormat(), llvm::IndexedInstrProfReader::hasFormat(), initializeReader(), and llvm::unrecognized_format.

◆ end()

InstrProfIterator llvm::InstrProfReader::end ( )

inline

Definition at line 115 of file InstrProfReader.h.

◆ error() [1/2]

Error llvm::InstrProfReader::error ( Error && E )

inlineprotected

Definition at line 169 of file InstrProfReader.h.

References E, llvm::InstrProfError::get(), llvm::InstrProfError::getMessage(), and llvm::handleAllErrors().

◆ error() [2/2]

Error llvm::InstrProfReader::error	(	instrprof_error	Err,
		const std::string &	ErrMsg = `""`
	)

inlineprotected

Set the current error and return same.

Definition at line 161 of file InstrProfReader.h.

References llvm::success, and llvm::Error::success().

◆ functionEntryOnly()

virtual bool llvm::InstrProfReader::functionEntryOnly ( ) const

pure virtual

Return true if the profile only instruments function entries.

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

◆ getError()

Error llvm::InstrProfReader::getError ( )

inline

Get the current error.

Definition at line 188 of file InstrProfReader.h.

References hasError(), and llvm::Error::success().

◆ getProfileKind()

virtual InstrProfKind llvm::InstrProfReader::getProfileKind ( ) const

pure virtual

Returns a BitsetEnum describing the attributes of the profile.

To check individual attributes prefer using the helpers above.

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

◆ getSymtab()

virtual InstrProfSymtab & llvm::InstrProfReader::getSymtab ( )

pure virtual

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.

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

◆ getVersion()

virtual uint64_t llvm::InstrProfReader::getVersion ( ) const

pure virtual

Return the profile version.

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

◆ hasCSIRLevelProfile()

virtual bool llvm::InstrProfReader::hasCSIRLevelProfile ( ) const

pure virtual

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

◆ hasError()

bool llvm::InstrProfReader::hasError ( )

inline

Return true if the reader encountered an error reading profiling data.

Definition at line 185 of file InstrProfReader.h.

References isEOF(), and llvm::success.

Referenced by getError().

◆ hasMemoryProfile()

virtual bool llvm::InstrProfReader::hasMemoryProfile ( ) const

pure virtual

Return true if profile includes a memory profile.

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

◆ hasSingleByteCoverage()

virtual bool llvm::InstrProfReader::hasSingleByteCoverage ( ) const

pure virtual

Return true if the profile has single byte counters representing coverage.

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

◆ instrEntryBBEnabled()

virtual bool llvm::InstrProfReader::instrEntryBBEnabled ( ) const

pure virtual

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

◆ isEOF()

bool llvm::InstrProfReader::isEOF ( )

inline

Return true if the reader has finished reading the profile data.

Definition at line 182 of file InstrProfReader.h.

References llvm::eof.

Referenced by hasError().

◆ isIRLevelProfile()

virtual bool llvm::InstrProfReader::isIRLevelProfile ( ) const

pure virtual

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

Referenced by accumulateCounts().

◆ printBinaryIds()

virtual Error llvm::InstrProfReader::printBinaryIds ( raw_ostream & OS )

inlinevirtual

Print binary ids.

Reimplemented in llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

Definition at line 111 of file InstrProfReader.h.

References success().

◆ readBinaryIds()

virtual Error llvm::InstrProfReader::readBinaryIds ( std::vector< llvm::object::BuildID > & BinaryIds )

inlinevirtual

Read a list of binary ids.

Reimplemented in llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

Definition at line 106 of file InstrProfReader.h.

References success().

◆ readHeader()

virtual Error llvm::InstrProfReader::readHeader ( )

pure virtual

Read the header. Required before reading first record.

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

Referenced by initializeReader().

◆ readNextRecord()

virtual Error llvm::InstrProfReader::readNextRecord ( NamedInstrProfRecord & Record )

pure virtual

Read a single record.

Implemented in llvm::TextInstrProfReader, llvm::RawInstrProfReader< IntPtrT >, and llvm::IndexedInstrProfReader.

◆ success()

Error llvm::InstrProfReader::success ( )

inlineprotected

Clear the current error and return a successful one.

Definition at line 178 of file InstrProfReader.h.

References error, and llvm::success.

Referenced by llvm::IndexedInstrProfReader::getFunctionCounts(), printBinaryIds(), readBinaryIds(), llvm::TextInstrProfReader::readHeader(), llvm::IndexedInstrProfReader::readHeader(), llvm::TextInstrProfReader::readNextRecord(), and llvm::IndexedInstrProfReader::readNextRecord().

◆ useDebugInfoCorrelate()

virtual bool llvm::InstrProfReader::useDebugInfoCorrelate ( ) const

inlinevirtual

Return true if we must provide debug info to create PGO profiles.

Reimplemented in llvm::RawInstrProfReader< IntPtrT >.

Definition at line 127 of file InstrProfReader.h.

Member Data Documentation

◆ Symtab

std::unique_ptr<InstrProfSymtab> llvm::InstrProfReader::Symtab

protected

Definition at line 158 of file InstrProfReader.h.

Referenced by llvm::TextInstrProfReader::getSymtab(), llvm::RawInstrProfReader< IntPtrT >::getSymtab(), llvm::IndexedInstrProfReader::getSymtab(), llvm::TextInstrProfReader::readHeader(), and llvm::TextInstrProfReader::readNextRecord().

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

include/llvm/ProfileData/InstrProfReader.h
lib/ProfileData/InstrProfReader.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ InstrProfReader()

◆ ~InstrProfReader()

Member Function Documentation

◆ accumulateCounts()

◆ begin()

◆ create() [1/2]

◆ create() [2/2]

◆ end()

◆ error() [1/2]

◆ error() [2/2]

◆ functionEntryOnly()

◆ getError()

◆ getProfileKind()

◆ getSymtab()

◆ getVersion()

◆ hasCSIRLevelProfile()

◆ hasError()

◆ hasMemoryProfile()

◆ hasSingleByteCoverage()

◆ instrEntryBBEnabled()

◆ isEOF()

◆ isIRLevelProfile()

◆ printBinaryIds()

◆ readBinaryIds()

◆ readHeader()

◆ readNextRecord()

◆ success()

◆ useDebugInfoCorrelate()

Member Data Documentation

◆ Symtab