#include "llvm/ProfileData/SampleProfReader.h"

Inheritance diagram for llvm::sampleprof::SampleProfileReaderGCC:

Collaboration diagram for llvm::sampleprof::SampleProfileReaderGCC:

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Public Member Functions
	SampleProfileReaderGCC (std::unique_ptr< MemoryBuffer > B, LLVMContext &C)

std::error_code	readHeader () override
	Read and validate the file header. More...

std::error_code	readImpl () override
	Read sample profiles from the associated file. More...

Public Member Functions inherited from llvm::sampleprof::SampleProfileReader
	SampleProfileReader (std::unique_ptr< MemoryBuffer > B, LLVMContext &C, SampleProfileFormat Format=SPF_None)

virtual	~SampleProfileReader ()=default

void	setDiscriminatorMaskedBitFrom (FSDiscriminatorPass P)
	Set the bits for FS discriminators. More...

uint32_t	getDiscriminatorMask () const
	Get the bitmask the discriminators: For FS profiles, return the bit mask for this pass. More...

std::error_code	read ()
	The interface to read sample profiles from the associated file. More...

void	dumpFunctionProfile (SampleContext FContext, raw_ostream &OS=dbgs())
	Print the profile for `FContext` on stream `OS`. More...

virtual bool	collectFuncsFromModule ()
	Collect functions with definitions in Module M. More...

void	dump (raw_ostream &OS=dbgs())
	Print all the profiles on stream `OS`. More...

FunctionSamples *	getSamplesFor (const Function &F)
	Return the samples collected for function `F`. More...

FunctionSamples *	getOrCreateSamplesFor (const Function &F)
	Return the samples collected for function `F`, create empty FunctionSamples if it doesn't exist. More...

virtual FunctionSamples *	getSamplesFor (StringRef Fname)
	Return the samples collected for function `F`. More...

SampleProfileMap &	getProfiles ()
	Return all the profiles. More...

void	reportError (int64_t LineNumber, const Twine &Msg) const
	Report a parse error message. More...

ProfileSummary &	getSummary () const
	Return the profile summary. More...

MemoryBuffer *	getBuffer () const

SampleProfileFormat	getFormat () const
	Return the profile format. More...

bool	profileIsProbeBased () const
	Whether input profile is based on pseudo probes. More...

bool	profileIsCS () const
	Whether input profile is fully context-sensitive. More...

bool	profileIsPreInlined () const
	Whether input profile contains ShouldBeInlined contexts. More...

virtual std::unique_ptr< ProfileSymbolList >	getProfileSymbolList ()

virtual std::vector< StringRef > *	getNameTable ()
	It includes all the names that have samples either in outline instance or inline instance. More...

virtual bool	dumpSectionInfo (raw_ostream &OS=dbgs())

virtual bool	useMD5 ()
	Return whether names in the profile are all MD5 numbers. More...

virtual void	setSkipFlatProf (bool Skip)
	Don't read profile without context if the flag is set. More...

virtual bool	hasUniqSuffix ()
	Return whether any name in the profile contains ".__uniq." suffix. More...

SampleProfileReaderItaniumRemapper *	getRemapper ()

void	setModule (const Module *Mod)

Static Public Member Functions
static bool	hasFormat (const MemoryBuffer &Buffer)
	Return true if `Buffer` is in the format supported by this class. More...

Static Public Member Functions inherited from llvm::sampleprof::SampleProfileReader
static ErrorOr< std::unique_ptr< SampleProfileReader > >	create (const std::string Filename, LLVMContext &C, FSDiscriminatorPass P=FSDiscriminatorPass::Base, const std::string RemapFilename="")
	Create a sample profile reader appropriate to the file format. More...

static ErrorOr< std::unique_ptr< SampleProfileReader > >	create (std::unique_ptr< MemoryBuffer > &B, LLVMContext &C, FSDiscriminatorPass P=FSDiscriminatorPass::Base, const std::string RemapFilename="")
	Create a sample profile reader from the supplied memory buffer. More...

Protected Member Functions
std::error_code	readNameTable ()

std::error_code	readOneFunctionProfile (const InlineCallStack &InlineStack, bool Update, uint32_t Offset)

std::error_code	readFunctionProfiles ()

std::error_code	skipNextWord ()

template<typename T >
ErrorOr< T >	readNumber ()

ErrorOr< StringRef >	readString ()

std::error_code	readSectionTag (uint32_t Expected)
	Read the section tag and check that it's the same as `Expected`. More...

Protected Member Functions inherited from llvm::sampleprof::SampleProfileReader
void	computeSummary ()
	Compute summary for this profile. More...

Protected Attributes
GCOVBuffer	GcovBuffer
	GCOV buffer containing the profile. More...

std::vector< std::string >	Names
	Function names in this profile. More...

Protected Attributes inherited from llvm::sampleprof::SampleProfileReader
SampleProfileMap	Profiles
	Map every function to its associated profile. More...

LLVMContext &	Ctx
	LLVM context used to emit diagnostics. More...

std::unique_ptr< MemoryBuffer >	Buffer
	Memory buffer holding the profile file. More...

std::unordered_set< std::string >	MD5NameBuffer
	Extra name buffer holding names created on demand. More...

std::unique_ptr< ProfileSummary >	Summary
	Profile summary information. More...

std::unique_ptr< SampleProfileReaderItaniumRemapper >	Remapper

bool	ProfileIsProbeBased = false
	Whether samples are collected based on pseudo probes. More...

bool	ProfileIsCS = false
	Whether function profiles are context-sensitive flat profiles. More...

bool	ProfileIsPreInlined = false
	Whether function profile contains ShouldBeInlined contexts. More...

uint32_t	CSProfileCount = 0
	Number of context-sensitive profiles. More...

bool	ProfileIsFS = false
	Whether the function profiles use FS discriminators. More...

SampleProfileFormat	Format = SPF_None
	The format of sample. More...

const Module *	M = nullptr
	The current module being compiled if SampleProfileReader is used by compiler. More...

uint32_t	MaskedBitFrom = 31
	Zero out the discriminator bits higher than bit MaskedBitFrom (0 based). More...

Static Protected Attributes
static const uint32_t	GCOVTagAFDOFileNames = 0xaa000000
	GCOV tags used to separate sections in the profile file. More...

static const uint32_t	GCOVTagAFDOFunction = 0xac000000

Additional Inherited Members
Static Protected Member Functions inherited from llvm::sampleprof::SampleProfileReader
static std::unique_ptr< ProfileSummary >	takeSummary (SampleProfileReader &Reader)
	Take ownership of the summary of this reader. More...

Detailed Description

Definition at line 858 of file SampleProfReader.h.

Constructor & Destructor Documentation

◆ SampleProfileReaderGCC()

llvm::sampleprof::SampleProfileReaderGCC::SampleProfileReaderGCC	(	std::unique_ptr< MemoryBuffer >	B,
		LLVMContext &	C
	)

inline

Definition at line 860 of file SampleProfReader.h.

Member Function Documentation

◆ hasFormat()

bool SampleProfileReaderGCC::hasFormat ( const MemoryBuffer & Buffer )

static

Return true if Buffer is in the format supported by this class.

Definition at line 1720 of file SampleProfReader.cpp.

References llvm::sampleprof::SampleProfileReader::Buffer, and llvm::msf::Magic.

Referenced by llvm::sampleprof::SampleProfileReader::create().

◆ readFunctionProfiles()

std::error_code SampleProfileReaderGCC::readFunctionProfiles ( )

protected

Definition at line 1564 of file SampleProfReader.cpp.

References llvm::sampleprof::SampleProfileReader::computeSummary(), I, llvm::success, and llvm::truncated.

◆ readHeader()

std::error_code SampleProfileReaderGCC::readHeader ( )

overridevirtual

Read and validate the file header.

Implements llvm::sampleprof::SampleProfileReader.

Definition at line 1511 of file SampleProfReader.cpp.

References llvm::success, llvm::unrecognized_format, llvm::unsupported_version, and llvm::GCOV::V407.

◆ readImpl()

std::error_code SampleProfileReaderGCC::readImpl ( )

overridevirtual

Read sample profiles from the associated file.

Read a GCC AutoFDO profile.

This format is generated by the Linux Perf conversion tool at https://github.com/google/autofdo.

Implements llvm::sampleprof::SampleProfileReader.

Definition at line 1707 of file SampleProfReader.cpp.

References assert(), ProfileIsFSDisciminator, llvm::sampleprof::SampleProfileReaderBinary::readNameTable(), and llvm::success.

◆ readNameTable()

std::error_code SampleProfileReaderGCC::readNameTable ( )

protected

Definition at line 1546 of file SampleProfReader.cpp.

References I, llvm::success, and llvm::truncated.

◆ readNumber()

template<typename T >

ErrorOr< T > SampleProfileReaderGCC::readNumber

protected

Definition at line 1488 of file SampleProfReader.cpp.

References llvm::malformed, llvm::max(), and llvm::sampleprof::SampleProfileReader::reportError().

◆ readOneFunctionProfile()

std::error_code SampleProfileReaderGCC::readOneFunctionProfile	(	const InlineCallStack &	InlineStack,
		bool	Update,
		uint32_t	Offset
	)

protected

Definition at line 1581 of file SampleProfReader.cpp.

References llvm::sampleprof::FunctionSamples::addBodySamples(), llvm::sampleprof::FunctionSamples::addCalledTargetSamples(), llvm::sampleprof::FunctionSamples::addHeadSamples(), llvm::append_range(), llvm::sampleprof::FunctionSamples::functionSamplesAt(), llvm::sampleprof::FunctionSamples::getTotalSamples(), llvm::sampleprof::HIST_TYPE_INDIR_CALL_TOPN, I, llvm::malformed, llvm::sampleprof::SampleProfileReader::Profiles, llvm::sampleprof::FunctionSamples::setName(), llvm::success, and llvm::truncated.

◆ readSectionTag()

std::error_code SampleProfileReaderGCC::readSectionTag ( uint32_t Expected )

protected

Read the section tag and check that it's the same as Expected.

Definition at line 1532 of file SampleProfReader.cpp.

References llvm::malformed, llvm::success, and llvm::truncated.

◆ readString()

ErrorOr< StringRef > SampleProfileReaderGCC::readString ( )

protected

Definition at line 1504 of file SampleProfReader.cpp.

References llvm::truncated.

◆ skipNextWord()

std::error_code SampleProfileReaderGCC::skipNextWord ( )

protected

Definition at line 1481 of file SampleProfReader.cpp.

References llvm::success, and llvm::truncated.

Member Data Documentation

◆ GcovBuffer

GCOVBuffer llvm::sampleprof::SampleProfileReaderGCC::GcovBuffer

protected

GCOV buffer containing the profile.

Definition at line 886 of file SampleProfReader.h.

◆ GCOVTagAFDOFileNames

const uint32_t llvm::sampleprof::SampleProfileReaderGCC::GCOVTagAFDOFileNames = 0xaa000000

staticprotected

GCOV tags used to separate sections in the profile file.

Definition at line 892 of file SampleProfReader.h.

◆ GCOVTagAFDOFunction

const uint32_t llvm::sampleprof::SampleProfileReaderGCC::GCOVTagAFDOFunction = 0xac000000

staticprotected

Definition at line 893 of file SampleProfReader.h.

◆ Names

std::vector<std::string> llvm::sampleprof::SampleProfileReaderGCC::Names

protected

Function names in this profile.

Definition at line 889 of file SampleProfReader.h.

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

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

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Static Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SampleProfileReaderGCC()

Member Function Documentation

◆ hasFormat()

◆ readFunctionProfiles()

◆ readHeader()

◆ readImpl()

◆ readNameTable()

◆ readNumber()

◆ readOneFunctionProfile()

◆ readSectionTag()

◆ readString()

◆ skipNextWord()

Member Data Documentation

◆ GcovBuffer

◆ GCOVTagAFDOFileNames

◆ GCOVTagAFDOFunction

◆ Names