Representation of the samples collected for a function. More...

#include "llvm/ProfileData/SampleProf.h"

Public Member Functions
	FunctionSamples ()=default

void	print (raw_ostream &OS=dbgs(), unsigned Indent=0) const
	Print the samples collected for a function on stream `OS`.

void	dump () const

sampleprof_error	addTotalSamples (uint64_t Num, uint64_t Weight=1)

void	removeTotalSamples (uint64_t Num)

void	setTotalSamples (uint64_t Num)

void	setHeadSamples (uint64_t Num)

sampleprof_error	addHeadSamples (uint64_t Num, uint64_t Weight=1)

sampleprof_error	addBodySamples (uint32_t LineOffset, uint32_t Discriminator, uint64_t Num, uint64_t Weight=1)

sampleprof_error	addCalledTargetSamples (uint32_t LineOffset, uint32_t Discriminator, StringRef FName, uint64_t Num, uint64_t Weight=1)

sampleprof_error	addSampleRecord (LineLocation Location, const SampleRecord &SampleRecord, uint64_t Weight=1)

uint64_t	removeCalledTargetAndBodySample (uint32_t LineOffset, uint32_t Discriminator, StringRef FName)

void	updateCallsiteSamples ()

void	updateTotalSamples ()

void	SetContextSynthetic ()

const LineLocation &	mapIRLocToProfileLoc (const LineLocation &IRLoc) const

ErrorOr< uint64_t >	findSamplesAt (uint32_t LineOffset, uint32_t Discriminator) const
	Return the number of samples collected at the given location.

ErrorOr< SampleRecord::CallTargetMap >	findCallTargetMapAt (uint32_t LineOffset, uint32_t Discriminator) const
	Returns the call target map collected at a given location.

ErrorOr< SampleRecord::CallTargetMap >	findCallTargetMapAt (const LineLocation &CallSite) const
	Returns the call target map collected at a given location specified by `CallSite`.

FunctionSamplesMap &	functionSamplesAt (const LineLocation &Loc)
	Return the function samples at the given callsite location.

const FunctionSamplesMap *	findFunctionSamplesMapAt (const LineLocation &Loc) const
	Returns the FunctionSamplesMap at the given `Loc`.

const FunctionSamples *	findFunctionSamplesAt (const LineLocation &Loc, StringRef CalleeName, SampleProfileReaderItaniumRemapper *Remapper) const
	Returns a pointer to FunctionSamples at the given callsite location `Loc` with callee `CalleeName`.

bool	empty () const

uint64_t	getTotalSamples () const
	Return the total number of samples collected inside the function.

uint64_t	getHeadSamples () const
	For top-level functions, return the total number of branch samples that have the function as the branch target (or 0 otherwise).

uint64_t	getHeadSamplesEstimate () const
	Return an estimate of the sample count of the function entry basic block.

const BodySampleMap &	getBodySamples () const
	Return all the samples collected in the body of the function.

const CallsiteSampleMap &	getCallsiteSamples () const
	Return all the callsite samples collected in the body of the function.

CallsiteSampleMap &	getCallsiteSamples ()

uint64_t	getMaxCountInside (bool SkipCallSite=false) const
	Return the maximum of sample counts in a function body.

sampleprof_error	merge (const FunctionSamples &Other, uint64_t Weight=1)
	Merge the samples in `Other` into this one.

void	findInlinedFunctions (DenseSet< GlobalValue::GUID > &S, const StringMap< Function * > &SymbolMap, uint64_t Threshold) const
	Recursively traverses all children, if the total sample count of the corresponding function is no less than `Threshold`, add its corresponding GUID to `S`.

void	setName (StringRef FunctionName)
	Set the name of the function.

StringRef	getName () const
	Return the function name.

StringRef	getFuncName () const
	Return the original function name.

void	setFunctionHash (uint64_t Hash)

uint64_t	getFunctionHash () const

void	setIRToProfileLocationMap (const LocToLocMap *LTLM)

StringRef	getFuncName (StringRef Name) const
	Translate `Name` into its original name.

const FunctionSamples *	findFunctionSamples (const DILocation DIL, SampleProfileReaderItaniumRemapper Remapper=nullptr) const
	Get the FunctionSamples of the inline instance where DIL originates from.

SampleContext &	getContext () const

void	setContext (const SampleContext &FContext)

void	findAllNames (DenseSet< StringRef > &NameSet) const

bool	operator== (const FunctionSamples &Other) const

bool	operator!= (const FunctionSamples &Other) const

Static Public Member Functions
static StringRef	getCanonicalFnName (const Function &F)
	Return the canonical name for a function, taking into account suffix elision policy attributes.

static StringRef	getCanonicalFnName (StringRef FnName, StringRef Attr="selected")

static unsigned	getOffset (const DILocation *DIL)
	Returns the line offset to the start line of the subprogram.

static LineLocation	getCallSiteIdentifier (const DILocation *DIL, bool ProfileIsFS=false)
	Returns a unique call site identifier for a given debug location of a call instruction.

static uint64_t	getCallSiteHash (StringRef CalleeName, const LineLocation &Callsite)
	Returns a unique hash code for a combination of a callsite location and the callee function name.

static uint64_t	getGUID (StringRef Name)

Public Attributes
DenseMap< uint64_t, StringRef > *	GUIDToFuncNameMap = nullptr
	GUIDToFuncNameMap saves the mapping from GUID to the symbol name, for all the function symbols defined or declared in current module.

Static Public Attributes
static constexpr const char *	LLVMSuffix = ".llvm."
	Name suffixes which canonicalization should handle to avoid profile mismatch.

static constexpr const char *	PartSuffix = ".part."

static constexpr const char *	UniqSuffix = ".__uniq."

static bool	ProfileIsProbeBased = false

static bool	ProfileIsCS = false

static bool	ProfileIsPreInlined = false

static bool	UseMD5 = false
	Whether the profile uses MD5 to represent string.

static bool	HasUniqSuffix = true
	Whether the profile contains any ".__uniq." suffix in a name.

static bool	ProfileIsFS = false
	If this profile uses flow sensitive discriminators.

Detailed Description

Representation of the samples collected for a function.

This data structure contains all the collected samples for the body of a function. Each sample corresponds to a LineLocation instance within the body of the function.

Definition at line 734 of file SampleProf.h.

Constructor & Destructor Documentation

◆ FunctionSamples()

llvm::sampleprof::FunctionSamples::FunctionSamples ( )

default

Member Function Documentation

◆ addBodySamples()

sampleprof_error llvm::sampleprof::FunctionSamples::addBodySamples	(	uint32_t	LineOffset,
		uint32_t	Discriminator,
		uint64_t	Num,
		uint64_t	Weight = `1`
	)

inline

Definition at line 768 of file SampleProf.h.

Referenced by llvm::sampleprof::SampleProfileReaderText::readImpl(), llvm::sampleprof::SampleProfileReaderGCC::readOneFunctionProfile(), and llvm::sampleprof::SampleProfileReaderBinary::readProfile().

◆ addCalledTargetSamples()

sampleprof_error llvm::sampleprof::FunctionSamples::addCalledTargetSamples	(	uint32_t	LineOffset,
		uint32_t	Discriminator,
		StringRef	FName,
		uint64_t	Num,
		uint64_t	Weight = `1`
	)

inline

Definition at line 774 of file SampleProf.h.

Referenced by llvm::sampleprof::SampleProfileReaderText::readImpl(), llvm::sampleprof::SampleProfileReaderGCC::readOneFunctionProfile(), and llvm::sampleprof::SampleProfileReaderBinary::readProfile().

◆ addHeadSamples()

sampleprof_error llvm::sampleprof::FunctionSamples::addHeadSamples	(	uint64_t	Num,
		uint64_t	Weight = `1`
	)

inline

Definition at line 760 of file SampleProf.h.

References llvm::counter_overflow, llvm::SaturatingMultiplyAdd(), and llvm::success.

Referenced by merge(), llvm::sampleprof::SampleProfileReaderBinary::readFuncProfile(), llvm::sampleprof::SampleProfileReaderText::readImpl(), and llvm::sampleprof::SampleProfileReaderGCC::readOneFunctionProfile().

◆ addSampleRecord()

sampleprof_error llvm::sampleprof::FunctionSamples::addSampleRecord	(	LineLocation	Location,
		const SampleRecord &	SampleRecord,
		uint64_t	Weight = `1`
	)

inline

Definition at line 782 of file SampleProf.h.

◆ addTotalSamples()

sampleprof_error llvm::sampleprof::FunctionSamples::addTotalSamples	(	uint64_t	Num,
		uint64_t	Weight = `1`
	)

inline

Definition at line 741 of file SampleProf.h.

References llvm::counter_overflow, llvm::SaturatingMultiplyAdd(), and llvm::success.

Referenced by merge(), llvm::sampleprof::SampleProfileReaderText::readImpl(), llvm::sampleprof::SampleProfileReaderBinary::readProfile(), and updateTotalSamples().

◆ dump()

LLVM_DUMP_METHOD void FunctionSamples::dump ( ) const

Definition at line 323 of file SampleProf.cpp.

References llvm::dbgs(), and print().

◆ empty()

bool llvm::sampleprof::FunctionSamples::empty ( ) const

inline

Definition at line 911 of file SampleProf.h.

Referenced by llvm::MIRProfileLoader::runOnFunction().

◆ findAllNames()

void FunctionSamples::findAllNames ( DenseSet< StringRef > & NameSet ) const

Definition at line 272 of file SampleProf.cpp.

References getName(), and llvm::detail::DenseSetImpl< ValueT, MapTy, ValueInfoT >::insert().

◆ findCallTargetMapAt() [1/2]

ErrorOr< SampleRecord::CallTargetMap > llvm::sampleprof::FunctionSamples::findCallTargetMapAt ( const LineLocation & CallSite ) const

inline

Returns the call target map collected at a given location specified by CallSite.

If the location is not found in profile, return error.

Definition at line 880 of file SampleProf.h.

References mapIRLocToProfileLoc().

◆ findCallTargetMapAt() [2/2]

ErrorOr< SampleRecord::CallTargetMap > llvm::sampleprof::FunctionSamples::findCallTargetMapAt	(	uint32_t	LineOffset,
		uint32_t	Discriminator
	)		const

inline

Returns the call target map collected at a given location.

Each location is specified by LineOffset and Discriminator. If the location is not found in profile, return error.

Definition at line 869 of file SampleProf.h.

References mapIRLocToProfileLoc().

Referenced by llvm::sampleprof::ProfiledCallGraph::ProfiledCallGraph().

◆ findFunctionSamples()

const FunctionSamples * FunctionSamples::findFunctionSamples	(	const DILocation *	DIL,
		SampleProfileReaderItaniumRemapper *	Remapper = `nullptr`
	)		const

Get the FunctionSamples of the inline instance where DIL originates from.

The FunctionSamples of the instruction (Machine or IR) associated to DIL is the inlined instance in which that instruction is coming from. We traverse the inline stack of that instruction, and match it with the tree nodes in the profile.

Returns: the FunctionSamples pointer to the inlined instance. If Remapper is not nullptr, it will be used to find matching FunctionSamples with not exactly the same but equivalent name.

Definition at line 246 of file SampleProf.cpp.

References assert(), llvm::SmallVectorImpl< T >::emplace_back(), getCallSiteIdentifier(), Name, ProfileIsFS, and llvm::SmallVectorBase< Size_T >::size().

◆ findFunctionSamplesAt()

const FunctionSamples * FunctionSamples::findFunctionSamplesAt	(	const LineLocation &	Loc,
		StringRef	CalleeName,
		SampleProfileReaderItaniumRemapper *	Remapper
	)		const

Returns a pointer to FunctionSamples at the given callsite location Loc with callee CalleeName.

If no callsite can be found, relax the restriction to return the FunctionSamples at callsite location Loc with the maximum total sample count. If Remapper is not nullptr, use Remapper to find FunctionSamples with equivalent name as CalleeName.

Definition at line 286 of file SampleProf.cpp.

References llvm::StringRef::empty(), getCanonicalFnName(), llvm::sampleprof::getRepInFormat(), llvm::sampleprof::SampleProfileReaderItaniumRemapper::lookUpNameInProfile(), mapIRLocToProfileLoc(), and UseMD5.

◆ findFunctionSamplesMapAt()

const FunctionSamplesMap * llvm::sampleprof::FunctionSamples::findFunctionSamplesMapAt ( const LineLocation & Loc ) const

inline

Returns the FunctionSamplesMap at the given Loc.

Definition at line 894 of file SampleProf.h.

References mapIRLocToProfileLoc().

◆ findInlinedFunctions()

void llvm::sampleprof::FunctionSamples::findInlinedFunctions	(	DenseSet< GlobalValue::GUID > &	S,
		const StringMap< Function * > &	SymbolMap,
		uint64_t	Threshold
	)		const

inline

Recursively traverses all children, if the total sample count of the corresponding function is no less than Threshold, add its corresponding GUID to S.

Also traverse the BodySamples to add hot CallTarget's GUID to S.

Definition at line 1020 of file SampleProf.h.

References Callee, F, getFuncName(), getGUID(), getName(), llvm::detail::DenseSetImpl< ValueT, MapTy, ValueInfoT >::insert(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::lookup().

◆ findSamplesAt()

ErrorOr< uint64_t > llvm::sampleprof::FunctionSamples::findSamplesAt	(	uint32_t	LineOffset,
		uint32_t	Discriminator
	)		const

inline

Return the number of samples collected at the given location.

Each location is specified by LineOffset and Discriminator. If the location is not found in profile, return error.

Definition at line 856 of file SampleProf.h.

References mapIRLocToProfileLoc().

◆ functionSamplesAt()

FunctionSamplesMap & llvm::sampleprof::FunctionSamples::functionSamplesAt ( const LineLocation & Loc )

inline

Return the function samples at the given callsite location.

Definition at line 888 of file SampleProf.h.

References mapIRLocToProfileLoc().

Referenced by merge(), llvm::sampleprof::SampleProfileReaderExtBinaryBase::readFuncMetadata(), llvm::sampleprof::SampleProfileReaderGCC::readOneFunctionProfile(), and llvm::sampleprof::SampleProfileReaderBinary::readProfile().

◆ getBodySamples()

const BodySampleMap & llvm::sampleprof::FunctionSamples::getBodySamples ( ) const

inline

Return all the samples collected in the body of the function.

Definition at line 953 of file SampleProf.h.

Referenced by llvm::sampleprof::SampleProfileWriterBinary::addNames(), dumpFunctionProfileJson(), getMaxCountInside(), llvm::sampleprof::SampleProfileWriterBinary::writeBody(), and llvm::sampleprof::SampleProfileWriterText::writeSample().

◆ getCallSiteHash()

uint64_t FunctionSamples::getCallSiteHash	(	StringRef	CalleeName,
		const LineLocation &	Callsite
	)

static

Returns a unique hash code for a combination of a callsite location and the callee function name.

Definition at line 238 of file SampleProf.cpp.

References llvm::sampleprof::LineLocation::Discriminator, llvm::sampleprof::LineLocation::LineOffset, and llvm::StringRef::str().

Referenced by llvm::ContextTrieNode::getChildContext(), llvm::ContextTrieNode::getOrCreateChildContext(), llvm::sampleprof::ProfileConverter::FrameNode::getOrCreateChildFrame(), and llvm::ContextTrieNode::removeChildContext().

◆ getCallSiteIdentifier()

LineLocation FunctionSamples::getCallSiteIdentifier	(	const DILocation *	DIL,
		bool	ProfileIsFS = `false`
	)

static

Returns a unique call site identifier for a given debug location of a call instruction.

This is wrapper of two scenarios, the probe-based profile and regular profile, to hide implementation details from the sample loader and the context tracker.

Definition at line 221 of file SampleProf.cpp.

References llvm::PseudoProbeDwarfDiscriminator::extractProbeIndex(), llvm::DILocation::getBaseDiscriminator(), getOffset(), ProfileIsFS, and ProfileIsProbeBased.

Referenced by findFunctionSamples(), llvm::SampleContextTracker::getIndirectCalleeContextSamplesFor(), and llvm::SampleContextTracker::promoteMergeContextSamplesTree().

◆ getCallsiteSamples() [1/2]

CallsiteSampleMap & llvm::sampleprof::FunctionSamples::getCallsiteSamples ( )

inline

Definition at line 960 of file SampleProf.h.

◆ getCallsiteSamples() [2/2]

const CallsiteSampleMap & llvm::sampleprof::FunctionSamples::getCallsiteSamples ( ) const

inline

Return all the callsite samples collected in the body of the function.

Definition at line 956 of file SampleProf.h.

Referenced by llvm::sampleprof::SampleProfileWriterBinary::addNames(), dumpFunctionProfileJson(), getMaxCountInside(), llvm::sampleprof::SampleProfileWriterBinary::writeBody(), llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeFuncMetadata(), and llvm::sampleprof::SampleProfileWriterText::writeSample().

◆ getCanonicalFnName() [1/2]

static StringRef llvm::sampleprof::FunctionSamples::getCanonicalFnName ( const Function & F )

inlinestatic

Return the canonical name for a function, taking into account suffix elision policy attributes.

Definition at line 1066 of file SampleProf.h.

References F, and getCanonicalFnName().

Referenced by llvm::sampleprof::SampleProfileReaderExtBinaryBase::collectFuncsFromModule(), findFunctionSamplesAt(), llvm::SampleContextTracker::getAllContextSamplesFor(), llvm::SampleContextTracker::getBaseSamplesFor(), llvm::SampleContextTracker::getCalleeContextSamplesFor(), getCanonicalFnName(), llvm::sampleprof::SampleProfileReader::getOrCreateSamplesFor(), and llvm::sampleprof::SampleProfileReader::getSamplesFor().

◆ getCanonicalFnName() [2/2]

static StringRef llvm::sampleprof::FunctionSamples::getCanonicalFnName	(	StringRef	FnName,
		StringRef	Attr = `"selected"`
	)

inlinestatic

Definition at line 1078 of file SampleProf.h.

References assert(), HasUniqSuffix, LLVMSuffix, llvm::StringRef::npos, PartSuffix, llvm::StringRef::rfind(), llvm::StringRef::size(), llvm::StringRef::split(), llvm::StringRef::substr(), and UniqSuffix.

◆ getContext()

SampleContext & llvm::sampleprof::FunctionSamples::getContext ( ) const

inline

Definition at line 1162 of file SampleProf.h.

Referenced by llvm::sampleprof::SampleContextTrimmer::canonicalizeContextProfiles(), llvm::SampleContextTracker::getContextSamplesFor(), llvm::SampleContextTracker::markContextSamplesInlined(), llvm::SampleContextTracker::populateFuncToCtxtMap(), llvm::sampleprof::ProfileConverter::ProfileConverter(), llvm::SampleContextTracker::promoteMergeContextSamplesTree(), llvm::sampleprof::SampleProfileReaderExtBinaryBase::readFuncMetadata(), llvm::sampleprof::SampleProfileReaderText::readImpl(), llvm::sampleprof::SampleProfileWriterBinary::writeBody(), llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeFuncMetadata(), llvm::sampleprof::SampleProfileWriterText::writeSample(), and llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeSample().

◆ getFuncName() [1/2]

StringRef llvm::sampleprof::FunctionSamples::getFuncName ( ) const

inline

Return the original function name.

Definition at line 1053 of file SampleProf.h.

References getFuncName(), and getName().

Referenced by findInlinedFunctions(), and getFuncName().

◆ getFuncName() [2/2]

StringRef llvm::sampleprof::FunctionSamples::getFuncName ( StringRef Name ) const

inline

Translate Name into its original name.

When profile doesn't use MD5, Name needs no translation. When profile uses MD5, Name in current FunctionSamples is actually GUID of the original function name. getFuncName will translate Name in current FunctionSamples into its original name by looking up in the function map GUIDToFuncNameMap. If the original name doesn't exist in the map, return empty StringRef.

Definition at line 1117 of file SampleProf.h.

References assert(), GUIDToFuncNameMap, Name, and UseMD5.

◆ getFunctionHash()

uint64_t llvm::sampleprof::FunctionSamples::getFunctionHash ( ) const

inline

Definition at line 1057 of file SampleProf.h.

Referenced by print(), llvm::PseudoProbeManager::profileIsValid(), llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeFuncMetadata(), and llvm::sampleprof::SampleProfileWriterText::writeSample().

◆ getGUID()

static uint64_t llvm::sampleprof::FunctionSamples::getGUID ( StringRef Name )

inlinestatic

Definition at line 1182 of file SampleProf.h.

References llvm::GlobalValue::getGUID(), Name, and UseMD5.

Referenced by findInlinedFunctions(), and GetSortedValueDataFromCallTargets().

◆ getHeadSamples()

uint64_t llvm::sampleprof::FunctionSamples::getHeadSamples ( ) const

inline

For top-level functions, return the total number of branch samples that have the function as the branch target (or 0 otherwise).

This is the raw data fetched from the profile. This should be equivalent to the sample of the first instruction of the symbol. But as we directly get this info for raw profile without referring to potentially inaccurate debug info, this gives more accurate profile data and is preferred for standalone symbols.

Definition at line 922 of file SampleProf.h.

Referenced by dumpFunctionProfileJson(), getHeadSamplesEstimate(), llvm::sampleprof::SampleProfileWriterText::writeSample(), llvm::sampleprof::SampleProfileWriterBinary::writeSample(), and llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeSample().

◆ getHeadSamplesEstimate()

uint64_t llvm::sampleprof::FunctionSamples::getHeadSamplesEstimate ( ) const

inline

Return an estimate of the sample count of the function entry basic block.

The function can be either a standalone symbol or an inlined function. For Context-Sensitive profiles, this will prefer returning the head samples (i.e. getHeadSamples()), if non-zero. Otherwise it estimates from the function body's samples or callsite samples.

Definition at line 929 of file SampleProf.h.

References getHeadSamples(), and ProfileIsCS.

Referenced by llvm::sampleprof::ProfiledCallGraph::ProfiledCallGraph().

◆ getMaxCountInside()

uint64_t llvm::sampleprof::FunctionSamples::getMaxCountInside ( bool SkipCallSite = false ) const

inline

Return the maximum of sample counts in a function body.

When SkipCallSite is false, which is the default, the return count includes samples in the inlined functions. When SkipCallSite is true, the return count only considers the body samples.

Definition at line 966 of file SampleProf.h.

References llvm::CallingConv::C, F, getBodySamples(), and getCallsiteSamples().

◆ getName()

StringRef llvm::sampleprof::FunctionSamples::getName ( ) const

inline

Return the function name.

Definition at line 1050 of file SampleProf.h.

References llvm::sampleprof::SampleContext::getName().

Referenced by llvm::sampleprof::SampleProfileWriterBinary::addNames(), dumpFunctionProfileJson(), findAllNames(), findInlinedFunctions(), getFuncName(), llvm::sampleprof::ProfiledCallGraph::ProfiledCallGraph(), and llvm::sampleprof::SampleProfileWriterText::writeSample().

◆ getOffset()

unsigned FunctionSamples::getOffset ( const DILocation * DIL )

static

Returns the line offset to the start line of the subprogram.

We assume that a single function will not exceed 65535 LOC.

Definition at line 216 of file SampleProf.cpp.

Referenced by getCallSiteIdentifier(), and llvm::SampleProfileLoaderBaseImpl< BT >::getInstWeightImpl().

◆ getTotalSamples()

uint64_t llvm::sampleprof::FunctionSamples::getTotalSamples ( ) const

inline

Return the total number of samples collected inside the function.

Definition at line 914 of file SampleProf.h.

Referenced by llvm::sampleprofutil::callsiteIsHot(), dumpFunctionProfileJson(), llvm::ContextTrieNode::getHottestChildContext(), llvm::sampleprof::SampleProfileReaderGCC::readOneFunctionProfile(), llvm::sampleprof::SampleContextTrimmer::trimAndMergeColdContextProfiles(), llvm::sampleprof::SampleProfileWriterBinary::writeBody(), and llvm::sampleprof::SampleProfileWriterText::writeSample().

◆ mapIRLocToProfileLoc()

const LineLocation & llvm::sampleprof::FunctionSamples::mapIRLocToProfileLoc ( const LineLocation & IRLoc ) const

inline

Definition at line 841 of file SampleProf.h.

Referenced by findCallTargetMapAt(), findFunctionSamplesAt(), findFunctionSamplesMapAt(), findSamplesAt(), and functionSamplesAt().

◆ merge()

sampleprof_error llvm::sampleprof::FunctionSamples::merge	(	const FunctionSamples &	Other,
		uint64_t	Weight = `1`
	)

inline

Merge the samples in Other into this one.

Optionally scale samples by Weight.

Definition at line 980 of file SampleProf.h.

References addHeadSamples(), addTotalSamples(), llvm::StringRef::empty(), functionSamplesAt(), llvm::sampleprof::SampleContext::getName(), GUIDToFuncNameMap, llvm::hash_mismatch, I, merge(), llvm::MergeResult(), llvm::Other, and llvm::success.

Referenced by merge(), and llvm::sampleprof::SampleContextTrimmer::trimAndMergeColdContextProfiles().

◆ operator!=()

bool llvm::sampleprof::FunctionSamples::operator!= ( const FunctionSamples & Other ) const

inline

Definition at line 1201 of file SampleProf.h.

References llvm::Other.

◆ operator==()

bool llvm::sampleprof::FunctionSamples::operator== ( const FunctionSamples & Other ) const

inline

Definition at line 1190 of file SampleProf.h.

References GUIDToFuncNameMap, and llvm::Other.

◆ print()

void FunctionSamples::print	(	raw_ostream &	OS = `dbgs()`,
		unsigned	Indent = `0`
	)		const

Print the samples collected for a function on stream OS.

Definition at line 155 of file SampleProf.cpp.

References llvm::sampleprof::SampleSorter< LocationT, SampleT >::get(), getFunctionHash(), llvm::raw_ostream::indent(), OS, and SI.

Referenced by dump().

◆ removeCalledTargetAndBodySample()

uint64_t llvm::sampleprof::FunctionSamples::removeCalledTargetAndBodySample	(	uint32_t	LineOffset,
		uint32_t	Discriminator,
		StringRef	FName
	)

inline

Definition at line 789 of file SampleProf.h.

References I.

◆ removeTotalSamples()

void llvm::sampleprof::FunctionSamples::removeTotalSamples ( uint64_t Num )

inline

Definition at line 749 of file SampleProf.h.

◆ setContext()

void llvm::sampleprof::FunctionSamples::setContext ( const SampleContext & FContext )

inline

Definition at line 1164 of file SampleProf.h.

Referenced by llvm::sampleprof::SampleProfileReaderBinary::readFuncProfile(), llvm::sampleprof::SampleProfileReaderText::readImpl(), and llvm::sampleprof::SampleContextTrimmer::trimAndMergeColdContextProfiles().

◆ SetContextSynthetic()

void llvm::sampleprof::FunctionSamples::SetContextSynthetic ( )

inline

Definition at line 831 of file SampleProf.h.

References I, llvm::sampleprof::SampleContext::setState(), and llvm::sampleprof::SyntheticContext.

◆ setFunctionHash()

void llvm::sampleprof::FunctionSamples::setFunctionHash ( uint64_t Hash )

inline

Definition at line 1055 of file SampleProf.h.

Referenced by llvm::sampleprof::SampleProfileReaderExtBinaryBase::readFuncMetadata(), and llvm::sampleprof::SampleProfileReaderText::readImpl().

◆ setHeadSamples()

void llvm::sampleprof::FunctionSamples::setHeadSamples ( uint64_t Num )

inline

Definition at line 758 of file SampleProf.h.

◆ setIRToProfileLocationMap()

void llvm::sampleprof::FunctionSamples::setIRToProfileLocationMap ( const LocToLocMap * LTLM )

inline

Definition at line 1059 of file SampleProf.h.

References assert().

◆ setName()

void llvm::sampleprof::FunctionSamples::setName ( StringRef FunctionName )

inline

Set the name of the function.

Definition at line 1047 of file SampleProf.h.

References llvm::sampleprof::SampleContext::setName().

Referenced by llvm::sampleprof::SampleProfileReaderText::readImpl(), llvm::sampleprof::SampleProfileReaderGCC::readOneFunctionProfile(), and llvm::sampleprof::SampleProfileReaderBinary::readProfile().

◆ setTotalSamples()

void llvm::sampleprof::FunctionSamples::setTotalSamples ( uint64_t Num )

inline

Definition at line 756 of file SampleProf.h.

Referenced by updateTotalSamples().

◆ updateCallsiteSamples()

void llvm::sampleprof::FunctionSamples::updateCallsiteSamples ( )

inline

Definition at line 804 of file SampleProf.h.

References I.

◆ updateTotalSamples()

void llvm::sampleprof::FunctionSamples::updateTotalSamples ( )

inline

Definition at line 817 of file SampleProf.h.

References addTotalSamples(), I, and setTotalSamples().

Member Data Documentation

◆ GUIDToFuncNameMap

DenseMap<uint64_t, StringRef>* llvm::sampleprof::FunctionSamples::GUIDToFuncNameMap = nullptr

GUIDToFuncNameMap saves the mapping from GUID to the symbol name, for all the function symbols defined or declared in current module.

Definition at line 1177 of file SampleProf.h.

Referenced by getFuncName(), merge(), and operator==().

◆ HasUniqSuffix

bool llvm::sampleprof::FunctionSamples::HasUniqSuffix = true

static

Whether the profile contains any ".__uniq." suffix in a name.

Definition at line 1170 of file SampleProf.h.

Referenced by getCanonicalFnName(), and llvm::sampleprof::SampleProfileReaderExtBinaryBase::readOneSection().

◆ LLVMSuffix

constexpr const char* llvm::sampleprof::FunctionSamples::LLVMSuffix = ".llvm."

staticconstexpr

Name suffixes which canonicalization should handle to avoid profile mismatch.

Definition at line 1074 of file SampleProf.h.

Referenced by getCanonicalFnName().

◆ PartSuffix

constexpr const char* llvm::sampleprof::FunctionSamples::PartSuffix = ".part."

staticconstexpr

Definition at line 1075 of file SampleProf.h.

Referenced by getCanonicalFnName().

◆ ProfileIsCS

bool llvm::sampleprof::FunctionSamples::ProfileIsCS = false

static

Definition at line 1158 of file SampleProf.h.

Referenced by llvm::SampleProfileSummaryBuilder::computeSummaryForProfiles(), llvm::sampleprof::SampleProfileWriter::create(), getHeadSamplesEstimate(), llvm::sampleprof::ProfiledCallGraph::ProfiledCallGraph(), llvm::sampleprof::SampleProfileReaderText::readImpl(), llvm::sampleprof::SampleProfileReaderExtBinaryBase::readOneSection(), llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeFuncMetadata(), llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeFuncOffsetTable(), llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeOneSection(), and llvm::sampleprof::SampleProfileWriterText::writeSample().

◆ ProfileIsFS

bool llvm::sampleprof::FunctionSamples::ProfileIsFS = false

static

If this profile uses flow sensitive discriminators.

Definition at line 1173 of file SampleProf.h.

Referenced by findFunctionSamples(), getCallSiteIdentifier(), llvm::sampleprof::SampleProfileReaderText::readImpl(), llvm::sampleprof::SampleProfileReaderBinary::readImpl(), llvm::sampleprof::SampleProfileReaderExtBinaryBase::readOneSection(), and llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeOneSection().

◆ ProfileIsPreInlined

bool llvm::sampleprof::FunctionSamples::ProfileIsPreInlined = false

static

Definition at line 1160 of file SampleProf.h.

Referenced by llvm::sampleprof::SampleProfileReaderText::readImpl(), llvm::sampleprof::SampleProfileReaderExtBinaryBase::readOneSection(), llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeFuncMetadata(), and llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeOneSection().

◆ ProfileIsProbeBased

bool llvm::sampleprof::FunctionSamples::ProfileIsProbeBased = false

static

Definition at line 1156 of file SampleProf.h.

Referenced by llvm::sampleprof::SampleProfileWriter::create(), getCallSiteIdentifier(), llvm::SampleProfileLoaderBaseImpl< BT >::getInstWeight(), llvm::MIRProfileLoader::getInstWeight(), llvm::SampleProfileLoaderBaseImpl< BT >::getProbeWeight(), llvm::sampleprof::SampleProfileReaderText::readImpl(), llvm::sampleprof::SampleProfileReaderExtBinaryBase::readOneSection(), llvm::MIRProfileLoader::runOnFunction(), llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeFuncMetadata(), llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeOneSection(), and llvm::sampleprof::SampleProfileWriterText::writeSample().

◆ UniqSuffix

constexpr const char* llvm::sampleprof::FunctionSamples::UniqSuffix = ".__uniq."

staticconstexpr

Definition at line 1076 of file SampleProf.h.

Referenced by getCanonicalFnName(), llvm::getUniqueInternalLinkagePostfix(), and llvm::sampleprof::SampleProfileWriterExtBinaryBase::writeNameTableSection().

◆ UseMD5

bool llvm::sampleprof::FunctionSamples::UseMD5 = false

static

Whether the profile uses MD5 to represent string.

Definition at line 1167 of file SampleProf.h.

Referenced by findFunctionSamplesAt(), llvm::SampleContextTracker::getBaseSamplesFor(), llvm::SampleContextTracker::getCalleeContextSamplesFor(), getFuncName(), llvm::SampleContextTracker::getFuncNameFor(), getGUID(), and llvm::sampleprof::SampleProfileReader::read().

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

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

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ FunctionSamples()

Member Function Documentation

◆ addBodySamples()

◆ addCalledTargetSamples()

◆ addHeadSamples()

◆ addSampleRecord()

◆ addTotalSamples()

◆ dump()

◆ empty()

◆ findAllNames()

◆ findCallTargetMapAt() [1/2]

◆ findCallTargetMapAt() [2/2]

◆ findFunctionSamples()

◆ findFunctionSamplesAt()

◆ findFunctionSamplesMapAt()

◆ findInlinedFunctions()

◆ findSamplesAt()

◆ functionSamplesAt()

◆ getBodySamples()

◆ getCallSiteHash()

◆ getCallSiteIdentifier()

◆ getCallsiteSamples() [1/2]

◆ getCallsiteSamples() [2/2]

◆ getCanonicalFnName() [1/2]

◆ getCanonicalFnName() [2/2]

◆ getContext()

◆ getFuncName() [1/2]

◆ getFuncName() [2/2]

◆ getFunctionHash()

◆ getGUID()

◆ getHeadSamples()

◆ getHeadSamplesEstimate()

◆ getMaxCountInside()

◆ getName()

◆ getOffset()

◆ getTotalSamples()

◆ mapIRLocToProfileLoc()

◆ merge()

◆ operator!=()

◆ operator==()

◆ print()

◆ removeCalledTargetAndBodySample()

◆ removeTotalSamples()

◆ setContext()

◆ SetContextSynthetic()

◆ setFunctionHash()

◆ setHeadSamples()

◆ setIRToProfileLocationMap()

◆ setName()

◆ setTotalSamples()

◆ updateCallsiteSamples()

◆ updateTotalSamples()

Member Data Documentation

◆ GUIDToFuncNameMap

◆ HasUniqSuffix

◆ LLVMSuffix

◆ PartSuffix

◆ ProfileIsCS

◆ ProfileIsFS

◆ ProfileIsPreInlined

◆ ProfileIsProbeBased

◆ UniqSuffix

◆ UseMD5