llvm::sampleprof::SampleProfileWriterText Class Reference

Sample-based profile writer (text format). More...

#include "llvm/ProfileData/SampleProfWriter.h"

Inheritance diagram for llvm::sampleprof::SampleProfileWriterText:

Public Member Functions
std::error_code	writeSample (const FunctionSamples &S) override
	Write samples to a text file.
Public Member Functions inherited from llvm::sampleprof::SampleProfileWriter
virtual	~SampleProfileWriter ()=default
virtual std::error_code	write (const SampleProfileMap &ProfileMap)
	Write all the sample profiles in the given map of samples.
template<typename FunctionPruningStrategy = DefaultFunctionPruningStrategy>
std::error_code	writeWithSizeLimit (SampleProfileMap &ProfileMap, size_t OutputSizeLimit)
	Write sample profiles up to given size limit, using the pruning strategy to drop some functions if necessary.
raw_ostream &	getOutputStream ()
virtual void	setProfileSymbolList (ProfileSymbolList *PSL)
virtual void	setToCompressAllSections ()
virtual void	setUseMD5 ()
virtual void	setPartialProfile ()

Protected Member Functions
	SampleProfileWriterText (std::unique_ptr< raw_ostream > &OS)
std::error_code	writeHeader (const SampleProfileMap &ProfileMap) override
	Write a file header for the profile file.
void	setUseCtxSplitLayout () override
Protected Member Functions inherited from llvm::sampleprof::SampleProfileWriter
	SampleProfileWriter (std::unique_ptr< raw_ostream > &OS)
virtual std::error_code	writeFuncProfiles (const SampleProfileMap &ProfileMap)
std::error_code	writeWithSizeLimitInternal (SampleProfileMap &ProfileMap, size_t OutputSizeLimit, FunctionPruningStrategy *Strategy)
void	computeSummary (const SampleProfileMap &ProfileMap)
	Compute summary for this profile.

Friends
LLVM_ABI friend ErrorOr< std::unique_ptr< SampleProfileWriter > >	SampleProfileWriter::create (std::unique_ptr< raw_ostream > &OS, SampleProfileFormat Format)

Additional Inherited Members
Static Public Member Functions inherited from llvm::sampleprof::SampleProfileWriter
static ErrorOr< std::unique_ptr< SampleProfileWriter > >	create (StringRef Filename, SampleProfileFormat Format)
	Profile writer factory.
static ErrorOr< std::unique_ptr< SampleProfileWriter > >	create (std::unique_ptr< raw_ostream > &OS, SampleProfileFormat Format)
	Create a new stream writer based on the value of Format.
Protected Attributes inherited from llvm::sampleprof::SampleProfileWriter
size_t	LineCount
	For writeWithSizeLimit in text mode, each newline takes 1 additional byte on Windows when actually written to the file, but not written to a memory buffer.
std::unique_ptr< raw_ostream >	OutputStream
	Output stream where to emit the profile to.
std::unique_ptr< ProfileSummary >	Summary
	Profile summary.
SampleProfileFormat	Format = SPF_None
	Profile format.

Detailed Description

Sample-based profile writer (text format).

Definition at line 167 of file SampleProfWriter.h.

Constructor & Destructor Documentation

SampleProfileWriterText()

llvm::sampleprof::SampleProfileWriterText::SampleProfileWriterText ( std::unique_ptr< raw_ostream > & OS )

inlineprotected

Definition at line 172 of file SampleProfWriter.h.

References llvm::sampleprof::SampleProfileWriter::SampleProfileWriter().

Member Function Documentation

setUseCtxSplitLayout()

void llvm::sampleprof::SampleProfileWriterText::setUseCtxSplitLayout ( )

inlineoverrideprotectedvirtual

Reimplemented from llvm::sampleprof::SampleProfileWriter.

Definition at line 180 of file SampleProfWriter.h.

writeHeader()

std::error_code llvm::sampleprof::SampleProfileWriterText::writeHeader ( const SampleProfileMap & ProfileMap )

inlineoverrideprotectedvirtual

Write a file header for the profile file.

Implements llvm::sampleprof::SampleProfileWriter.

Definition at line 175 of file SampleProfWriter.h.

References llvm::sampleprof::SampleProfileWriter::LineCount, and llvm::success.

writeSample()

std::error_code SampleProfileWriterText::writeSample ( const FunctionSamples & S )

overridevirtual

Write samples to a text file.

Note: it may be tempting to implement this in terms of FunctionSamples::print(). Please don't. The dump functionality is intended for debugging and has no specified form.

The format used here is more structured and deliberate because it needs to be parsed by the SampleProfileReaderText class.

Implements llvm::sampleprof::SampleProfileWriter.

Definition at line 580 of file SampleProfWriter.cpp.

References llvm::Count, llvm::sampleprof::FunctionSamples::findCallsiteTypeSamplesAt(), llvm::sampleprof::SampleSorter< LocationT, SampleT >::get(), llvm::sampleprof::SampleContext::getAllAttributes(), llvm::sampleprof::FunctionSamples::getBodySamples(), llvm::sampleprof::FunctionSamples::getCallsiteSamples(), llvm::sampleprof::FunctionSamples::getContext(), llvm::sampleprof::FunctionSamples::getFunction(), llvm::sampleprof::FunctionSamples::getFunctionHash(), llvm::sampleprof::FunctionSamples::getHeadSamples(), llvm::sampleprof::SampleRecord::getSamples(), llvm::sampleprof::SampleRecord::getSortedCallTargets(), llvm::sampleprof::FunctionSamples::getTotalSamples(), I, llvm::sampleprof::kVTableProfPrefix, llvm::sampleprof::SampleProfileWriter::LineCount, llvm::make_second_range(), llvm::sampleprof::SampleProfileWriter::OutputStream, llvm::sampleprof::FunctionSamples::ProfileIsCS, llvm::sampleprof::FunctionSamples::ProfileIsProbeBased, llvm::success, llvm::sampleprof::SampleContext::toString(), and writeSample().

Referenced by writeSample().

Friends And Related Symbol Documentation

SampleProfileWriter::create

LLVM_ABI friend ErrorOr< std::unique_ptr< SampleProfileWriter > > SampleProfileWriter::create ( std::unique_ptr< raw_ostream > & OS, SampleProfileFormat Format )

friend

References llvm::sampleprof::SampleProfileWriter::create(), and llvm::sampleprof::SampleProfileWriter::Format.

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

• include/llvm/ProfileData/SampleProfWriter.h
• lib/ProfileData/SampleProfWriter.cpp