PGOInstrumentation.cpp File Reference

#include "llvm/Transforms/Instrumentation/PGOInstrumentation.h"
#include "ValueProfileCollector.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/ADT/iterator.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/Analysis/BlockFrequencyInfo.h"
#include "llvm/Analysis/BranchProbabilityInfo.h"
#include "llvm/Analysis/CFG.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
#include "llvm/Analysis/ProfileSummaryInfo.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/CFG.h"
#include "llvm/IR/Comdat.h"
#include "llvm/IR/Constant.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/EHPersonalities.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalAlias.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/InstVisitor.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/MDBuilder.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/PassManager.h"
#include "llvm/IR/ProfDataUtils.h"
#include "llvm/IR/ProfileSummary.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/ProfileData/InstrProf.h"
#include "llvm/ProfileData/InstrProfReader.h"
#include "llvm/Support/BranchProbability.h"
#include "llvm/Support/CRC.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/DOTGraphTraits.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/GraphWriter.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Triple.h"
#include "llvm/Transforms/Instrumentation.h"
#include "llvm/Transforms/Instrumentation/BlockCoverageInference.h"
#include "llvm/Transforms/Instrumentation/CFGMST.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/MisExpect.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <memory>
#include <numeric>
#include <optional>
#include <stack>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
#include "llvm/ProfileData/InstrProfData.inc"

Go to the source code of this file.

Classes
struct	llvm::GraphTraits< PGOUseFunc * >
struct	llvm::DOTGraphTraits< PGOUseFunc * >

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Macros
#define	DEBUG_TYPE   "pgo-instrumentation"
#define	VALUE_PROF_KIND(Enumerator, Value, Descr)   Descr,

Typedefs
using	ProfileCount = Function::ProfileCount
using	VPCandidateInfo = ValueProfileCollector::CandidateInfo

Functions
	STATISTIC (NumOfPGOInstrument, "Number of edges instrumented.")
	STATISTIC (NumOfPGOSelectInsts, "Number of select instruction instrumented.")
	STATISTIC (NumOfPGOMemIntrinsics, "Number of mem intrinsics instrumented.")
	STATISTIC (NumOfPGOEdge, "Number of edges.")
	STATISTIC (NumOfPGOBB, "Number of basic-blocks.")
	STATISTIC (NumOfPGOSplit, "Number of critical edge splits.")
	STATISTIC (NumOfPGOFunc, "Number of functions having valid profile counts.")
	STATISTIC (NumOfPGOMismatch, "Number of functions having mismatch profile.")
	STATISTIC (NumOfPGOMissing, "Number of functions without profile.")
	STATISTIC (NumOfPGOICall, "Number of indirect call value instrumentations.")
	STATISTIC (NumOfCSPGOInstrument, "Number of edges instrumented in CSPGO.")
	STATISTIC (NumOfCSPGOSelectInsts, "Number of select instruction instrumented in CSPGO.")
	STATISTIC (NumOfCSPGOMemIntrinsics, "Number of mem intrinsics instrumented in CSPGO.")
	STATISTIC (NumOfCSPGOEdge, "Number of edges in CSPGO.")
	STATISTIC (NumOfCSPGOBB, "Number of basic-blocks in CSPGO.")
	STATISTIC (NumOfCSPGOSplit, "Number of critical edge splits in CSPGO.")
	STATISTIC (NumOfCSPGOFunc, "Number of functions having valid profile counts in CSPGO.")
	STATISTIC (NumOfCSPGOMismatch, "Number of functions having mismatch profile in CSPGO.")
	STATISTIC (NumOfCSPGOMissing, "Number of functions without profile in CSPGO.")
	STATISTIC (NumCoveredBlocks, "Number of basic blocks that were executed")
cl::opt< bool >	llvm::PGOWarnMissing ("pgo-warn-missing-function", cl::init(false), cl::Hidden, cl::desc("Use this option to turn on/off " "warnings about missing profile data for " "functions."))
cl::opt< bool >	llvm::NoPGOWarnMismatch ("no-pgo-warn-mismatch", cl::init(false), cl::Hidden, cl::desc("Use this option to turn off/on " "warnings about profile cfg mismatch."))
cl::opt< bool >	llvm::NoPGOWarnMismatchComdatWeak ("no-pgo-warn-mismatch-comdat-weak", cl::init(true), cl::Hidden, cl::desc("The option is used to turn on/off " "warnings about hash mismatch for comdat " "or weak functions."))
static std::string	getBranchCondString (Instruction *TI)
static GlobalVariable *	createIRLevelProfileFlagVar (Module &M, PGOInstrumentationType InstrumentationType)
static bool	canRenameComdat (Function &F, std::unordered_multimap< Comdat *, GlobalValue * > &ComdatMembers)
static void	populateEHOperandBundle (VPCandidateInfo &Cand, DenseMap< BasicBlock *, ColorVector > &BlockColors, SmallVectorImpl< OperandBundleDef > &OpBundles)
static uint64_t	sumEdgeCount (const ArrayRef< PGOUseEdge * > Edges)
static void	setupBBInfoEdges (const FuncPGOInstrumentation< PGOUseEdge, PGOUseBBInfo > &FuncInfo)
	Set up InEdges/OutEdges for all BBs in the MST.
static void	annotateFunctionWithHashMismatch (Function &F, LLVMContext &ctx)
static bool	isIndirectBrTarget (BasicBlock *BB)
static uint32_t	getMaxNumAnnotations (InstrProfValueKind ValueProfKind)
static void	collectComdatMembers (Module &M, std::unordered_multimap< Comdat *, GlobalValue * > &ComdatMembers)
static bool	skipPGOUse (const Function &F)
static bool	skipPGOGen (const Function &F)
static bool	InstrumentAllFunctions (Module &M, function_ref< TargetLibraryInfo &(Function &)> LookupTLI, function_ref< BranchProbabilityInfo *(Function &)> LookupBPI, function_ref< BlockFrequencyInfo *(Function &)> LookupBFI, PGOInstrumentationType InstrumentationType)
static void	fixFuncEntryCount (PGOUseFunc &Func, LoopInfo &LI, BranchProbabilityInfo &NBPI)
static void	verifyFuncBFI (PGOUseFunc &Func, LoopInfo &LI, BranchProbabilityInfo &NBPI, uint64_t HotCountThreshold, uint64_t ColdCountThreshold)
static bool	annotateAllFunctions (Module &M, StringRef ProfileFileName, StringRef ProfileRemappingFileName, vfs::FileSystem &FS, function_ref< TargetLibraryInfo &(Function &)> LookupTLI, function_ref< BranchProbabilityInfo *(Function &)> LookupBPI, function_ref< BlockFrequencyInfo *(Function &)> LookupBFI, ProfileSummaryInfo *PSI, bool IsCS)
static std::string	getSimpleNodeName (const BasicBlock *Node)
void	llvm::setIrrLoopHeaderMetadata (Module *M, Instruction *TI, uint64_t Count)

Variables
static cl::opt< std::string >	PGOTestProfileFile ("pgo-test-profile-file", cl::init(""), cl::Hidden, cl::value_desc("filename"), cl::desc("Specify the path of profile data file. This is" "mainly for test purpose."))
static cl::opt< std::string >	PGOTestProfileRemappingFile ("pgo-test-profile-remapping-file", cl::init(""), cl::Hidden, cl::value_desc("filename"), cl::desc("Specify the path of profile remapping file. This is mainly for " "test purpose."))
static cl::opt< bool >	DisableValueProfiling ("disable-vp", cl::init(false), cl::Hidden, cl::desc("Disable Value Profiling"))
static cl::opt< unsigned >	MaxNumAnnotations ("icp-max-annotations", cl::init(3), cl::Hidden, cl::desc("Max number of annotations for a single indirect " "call callsite"))
static cl::opt< unsigned >	MaxNumMemOPAnnotations ("memop-max-annotations", cl::init(4), cl::Hidden, cl::desc("Max number of preicise value annotations for a single memop" "intrinsic"))
static cl::opt< bool >	DoComdatRenaming ("do-comdat-renaming", cl::init(false), cl::Hidden, cl::desc("Append function hash to the name of COMDAT function to avoid " "function hash mismatch due to the preinliner"))
static cl::opt< bool >	PGOInstrSelect ("pgo-instr-select", cl::init(true), cl::Hidden, cl::desc("Use this option to turn on/off SELECT " "instruction instrumentation. "))
static cl::opt< PGOViewCountsType >	PGOViewRawCounts ("pgo-view-raw-counts", cl::Hidden, cl::desc("A boolean option to show CFG dag or text " "with raw profile counts from " "profile data. See also option " "-pgo-view-counts. To limit graph " "display to only one function, use " "filtering option -view-bfi-func-name."), cl::values(clEnumValN(PGOVCT_None, "none", "do not show."), clEnumValN(PGOVCT_Graph, "graph", "show a graph."), clEnumValN(PGOVCT_Text, "text", "show in text.")))
static cl::opt< bool >	PGOInstrMemOP ("pgo-instr-memop", cl::init(true), cl::Hidden, cl::desc("Use this option to turn on/off " "memory intrinsic size profiling."))
static cl::opt< bool >	EmitBranchProbability ("pgo-emit-branch-prob", cl::init(false), cl::Hidden, cl::desc("When this option is on, the annotated " "branch probability will be emitted as " "optimization remarks: -{Rpass|" "pass-remarks}=pgo-instrumentation"))
static cl::opt< bool >	PGOInstrumentEntry ("pgo-instrument-entry", cl::init(false), cl::Hidden, cl::desc("Force to instrument function entry basicblock."))
static cl::opt< bool >	PGOFunctionEntryCoverage ("pgo-function-entry-coverage", cl::Hidden, cl::desc("Use this option to enable function entry coverage instrumentation."))
static cl::opt< bool >	PGOBlockCoverage ("pgo-block-coverage", cl::desc("Use this option to enable basic block coverage instrumentation"))
static cl::opt< bool >	PGOViewBlockCoverageGraph ("pgo-view-block-coverage-graph", cl::desc("Create a dot file of CFGs with block " "coverage inference information"))
static cl::opt< bool >	PGOTemporalInstrumentation ("pgo-temporal-instrumentation", cl::desc("Use this option to enable temporal instrumentation"))
static cl::opt< bool >	PGOFixEntryCount ("pgo-fix-entry-count", cl::init(true), cl::Hidden, cl::desc("Fix function entry count in profile use."))
static cl::opt< bool >	PGOVerifyHotBFI ("pgo-verify-hot-bfi", cl::init(false), cl::Hidden, cl::desc("Print out the non-match BFI count if a hot raw profile count " "becomes non-hot, or a cold raw profile count becomes hot. " "The print is enabled under -Rpass-analysis=pgo, or " "internal option -pass-remakrs-analysis=pgo."))
static cl::opt< bool >	PGOVerifyBFI ("pgo-verify-bfi", cl::init(false), cl::Hidden, cl::desc("Print out mismatched BFI counts after setting profile metadata " "The print is enabled under -Rpass-analysis=pgo, or " "internal option -pass-remakrs-analysis=pgo."))
static cl::opt< unsigned >	PGOVerifyBFIRatio ("pgo-verify-bfi-ratio", cl::init(2), cl::Hidden, cl::desc("Set the threshold for pgo-verify-bfi: only print out " "mismatched BFI if the difference percentage is greater than " "this value (in percentage)."))
static cl::opt< unsigned >	PGOVerifyBFICutoff ("pgo-verify-bfi-cutoff", cl::init(5), cl::Hidden, cl::desc("Set the threshold for pgo-verify-bfi: skip the counts whose " "profile count value is below."))
static cl::opt< std::string >	PGOTraceFuncHash ("pgo-trace-func-hash", cl::init("-"), cl::Hidden, cl::value_desc("function name"), cl::desc("Trace the hash of the function with this name."))
static cl::opt< unsigned >	PGOFunctionSizeThreshold ("pgo-function-size-threshold", cl::Hidden, cl::desc("Do not instrument functions smaller than this threshold."))
static cl::opt< unsigned >	PGOFunctionCriticalEdgeThreshold ("pgo-critical-edge-threshold", cl::init(20000), cl::Hidden, cl::desc("Do not instrument functions with the number of critical edges " " greater than this threshold."))
cl::opt< unsigned >	MaxNumVTableAnnotations
static const char *	ValueProfKindDescr []

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "pgo-instrumentation"

Definition at line 132 of file PGOInstrumentation.cpp.

VALUE_PROF_KIND

#define VALUE_PROF_KIND	(		Enumerator,
			Value,
			Descr
	)		Descr,

Typedef Documentation

ProfileCount

using ProfileCount = Function::ProfileCount

Definition at line 129 of file PGOInstrumentation.cpp.

VPCandidateInfo

using VPCandidateInfo = ValueProfileCollector::CandidateInfo

Definition at line 130 of file PGOInstrumentation.cpp.

Function Documentation

annotateAllFunctions()

static bool annotateAllFunctions ( Module &  M, StringRef  ProfileFileName, StringRef  ProfileRemappingFileName, vfs::FileSystem &  FS, function_ref< TargetLibraryInfo &(Function &)>  LookupTLI, function_ref< BranchProbabilityInfo *(Function &)>  LookupBPI, function_ref< BlockFrequencyInfo *(Function &)>  LookupBFI, ProfileSummaryInfo *  PSI, bool  IsCS  )

static

Definition at line 2072 of file PGOInstrumentation.cpp.

References ColdCountThreshold, collectComdatMembers(), llvm::IndexedInstrProfReader::create(), llvm::createPGONameMetadata(), llvm::StringRef::data(), llvm::dbgs(), llvm::DS_Warning, llvm::EnableVTableProfileUse, F, fixFuncEntryCount(), G, llvm::ProfileSummaryInfo::getOrCompColdCountThreshold(), llvm::ProfileSummaryInfo::getOrCompHotCountThreshold(), llvm::getPGOName(), llvm::handleAllErrors(), LLVM_DEBUG, llvm::ErrorInfoBase::message(), llvm::InstrProfRecord::NotPseudo, llvm::Function::PCT_Real, PGOFixEntryCount, PGOInstrumentEntry, llvm::PGOVCT_Graph, llvm::PGOVCT_None, llvm::PGOVCT_Text, PGOVerifyBFI, PGOVerifyHotBFI, llvm::PGOViewCounts, PGOViewRawCounts, llvm::InstrProfRecord::PseudoHot, llvm::ProfileSummary::PSK_CSInstr, llvm::ProfileSummary::PSK_Instr, llvm::ProfileSummaryInfo::refresh(), skipPGOUse(), llvm::SplitIndirectBrCriticalEdges(), verifyFuncBFI(), llvm::ViewBlockFreqFuncName, llvm::ViewGraph(), and llvm::WriteGraph().

Referenced by llvm::PGOInstrumentationUse::run().

annotateFunctionWithHashMismatch()

static void annotateFunctionWithHashMismatch ( Function &  F, LLVMContext &  ctx  )

static

Definition at line 1331 of file PGOInstrumentation.cpp.

References llvm::MDBuilder::createString(), F, llvm::MDTuple::get(), N, llvm::MDNode::operands(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

canRenameComdat()

static bool canRenameComdat ( Function &  F, std::unordered_multimap< Comdat *, GlobalValue * > &  ComdatMembers  )

static

Definition at line 720 of file PGOInstrumentation.cpp.

References assert(), llvm::CallingConv::C, llvm::canRenameComdatFunc(), DoComdatRenaming, F, and llvm::make_range().

collectComdatMembers()

static void collectComdatMembers ( Module &  M, std::unordered_multimap< Comdat *, GlobalValue * > &  ComdatMembers  )

static

Definition at line 1826 of file PGOInstrumentation.cpp.

References llvm::CallingConv::C, DoComdatRenaming, and F.

Referenced by annotateAllFunctions(), and InstrumentAllFunctions().

createIRLevelProfileFlagVar()

static GlobalVariable * createIRLevelProfileFlagVar ( Module &  M, PGOInstrumentationType  InstrumentationType  )

static

Definition at line 419 of file PGOInstrumentation.cpp.

References llvm::InstrProfCorrelator::DEBUG_INFO, llvm::DebugInfoCorrelate, llvm::GlobalValue::ExternalLinkage, llvm::Type::getInt64Ty(), llvm::Constant::getIntegerValue(), llvm::GlobalValue::HiddenVisibility, PGOBlockCoverage, PGOFunctionEntryCoverage, PGOInstrumentEntry, PGOTemporalInstrumentation, llvm::ProfileCorrelate, and llvm::GlobalValue::WeakAnyLinkage.

Referenced by InstrumentAllFunctions(), and llvm::PGOInstrumentationGenCreateVar::run().

fixFuncEntryCount()

static void fixFuncEntryCount ( PGOUseFunc &  Func, LoopInfo &  LI, BranchProbabilityInfo &  NBPI  )

static

Definition at line 1952 of file PGOInstrumentation.cpp.

References assert(), llvm::APFloatBase::cmpEqual, llvm::APFloatBase::cmpGreaterThan, llvm::dbgs(), F, FuncEntryCount, llvm::BlockFrequencyInfo::getBlockProfileCount(), llvm::APFloat::getZero(), llvm::APFloatBase::IEEEdouble(), LLVM_DEBUG, llvm::Function::PCT_Real, and llvm::APFloatBase::rmNearestTiesToEven.

Referenced by annotateAllFunctions().

getBranchCondString()

static std::string getBranchCondString ( Instruction *  TI )

static

Definition at line 380 of file PGOInstrumentation.cpp.

References Cond, llvm::raw_ostream::flush(), llvm::BranchInst::getCondition(), llvm::User::getOperand(), llvm::CmpInst::getPredicate(), llvm::Value::getType(), llvm::BranchInst::isConditional(), llvm::ConstantInt::isMinusOne(), llvm::ConstantInt::isOne(), llvm::ConstantInt::isZero(), OS, llvm::Type::print(), and RHS.

Referenced by llvm::setProfMetadata().

getMaxNumAnnotations()

static uint32_t getMaxNumAnnotations ( InstrProfValueKind  ValueProfKind )

static

Definition at line 1759 of file PGOInstrumentation.cpp.

References MaxNumAnnotations, MaxNumMemOPAnnotations, and MaxNumVTableAnnotations.

getSimpleNodeName()

static std::string getSimpleNodeName ( const BasicBlock *  Node )

static

Definition at line 2306 of file PGOInstrumentation.cpp.

References OS, and Node::printAsOperand().

Referenced by llvm::DOTGraphTraits< PGOUseFunc * >::getNodeLabel().

InstrumentAllFunctions()

static bool InstrumentAllFunctions ( Module &  M, function_ref< TargetLibraryInfo &(Function &)>  LookupTLI, function_ref< BranchProbabilityInfo *(Function &)>  LookupBPI, function_ref< BlockFrequencyInfo *(Function &)>  LookupBFI, PGOInstrumentationType  InstrumentationType  )

static

Definition at line 1881 of file PGOInstrumentation.cpp.

References collectComdatMembers(), createIRLevelProfileFlagVar(), llvm::LLVMContext::diagnose(), llvm::DS_Warning, llvm::EnableVTableValueProfiling, F, and skipPGOGen().

Referenced by llvm::PGOInstrumentationGen::run().

isIndirectBrTarget()

static bool isIndirectBrTarget ( BasicBlock *  BB )

static

Definition at line 1684 of file PGOInstrumentation.cpp.

References llvm::predecessors().

populateEHOperandBundle()

static void populateEHOperandBundle ( VPCandidateInfo &  Cand, DenseMap< BasicBlock *, ColorVector > &  BlockColors, SmallVectorImpl< OperandBundleDef > &  OpBundles  )

static

Definition at line 867 of file PGOInstrumentation.cpp.

References llvm::ValueProfileCollector::CandidateInfo::AnnotatedInst, assert(), llvm::SmallVectorImpl< T >::emplace_back(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::empty(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), llvm::TinyPtrVector< EltTy >::front(), llvm::Instruction::isEHPad(), llvm::LLVMContext::OB_funclet, and llvm::TinyPtrVector< EltTy >::size().

setupBBInfoEdges()

static void setupBBInfoEdges ( const FuncPGOInstrumentation< PGOUseEdge, PGOUseBBInfo > &  FuncInfo )

static

Set up InEdges/OutEdges for all BBs in the MST.

Definition at line 1227 of file PGOInstrumentation.cpp.

skipPGOGen()

static bool skipPGOGen ( const Function &  F )

static

Definition at line 1867 of file PGOInstrumentation.cpp.

References F, PGOFunctionSizeThreshold, and skipPGOUse().

Referenced by InstrumentAllFunctions().

skipPGOUse()

static bool skipPGOUse ( const Function &  F )

static

Definition at line 1843 of file PGOInstrumentation.cpp.

References llvm::dbgs(), F, llvm::Instruction::getNumSuccessors(), I, llvm::isCriticalEdge(), LLVM_DEBUG, and PGOFunctionCriticalEdgeThreshold.

Referenced by annotateAllFunctions(), and skipPGOGen().

STATISTIC() [1/20]

STATISTIC	(	NumCoveredBlocks	,
		"Number of basic blocks that were executed"
	)

STATISTIC() [2/20]

STATISTIC	(	NumOfCSPGOBB	,
		"Number of basic-blocks in CSPGO."
	)

STATISTIC() [3/20]

STATISTIC	(	NumOfCSPGOEdge	,
		"Number of edges in CSPGO."
	)

STATISTIC() [4/20]

STATISTIC	(	NumOfCSPGOFunc	,
		"Number of functions having valid profile counts in CSPGO."
	)

STATISTIC() [5/20]

STATISTIC	(	NumOfCSPGOInstrument	,
		"Number of edges instrumented in CSPGO."
	)

STATISTIC() [6/20]

STATISTIC	(	NumOfCSPGOMemIntrinsics	,
		"Number of mem intrinsics instrumented in CSPGO."
	)

STATISTIC() [7/20]

STATISTIC	(	NumOfCSPGOMismatch	,
		"Number of functions having mismatch profile in CSPGO."
	)

STATISTIC() [8/20]

STATISTIC	(	NumOfCSPGOMissing	,
		"Number of functions without profile in CSPGO."
	)

STATISTIC() [9/20]

STATISTIC	(	NumOfCSPGOSelectInsts	,
		"Number of select instruction instrumented in CSPGO."
	)

STATISTIC() [10/20]

STATISTIC	(	NumOfCSPGOSplit	,
		"Number of critical edge splits in CSPGO."
	)

STATISTIC() [11/20]

STATISTIC	(	NumOfPGOBB	,
		"Number of basic-blocks."
	)

STATISTIC() [12/20]

STATISTIC	(	NumOfPGOEdge	,
		"Number of edges."
	)

STATISTIC() [13/20]

STATISTIC	(	NumOfPGOFunc	,
		"Number of functions having valid profile counts."
	)

STATISTIC() [14/20]

STATISTIC	(	NumOfPGOICall	,
		"Number of indirect call value instrumentations."
	)

STATISTIC() [15/20]

STATISTIC	(	NumOfPGOInstrument	,
		"Number of edges instrumented."
	)

STATISTIC() [16/20]

STATISTIC	(	NumOfPGOMemIntrinsics	,
		"Number of mem intrinsics instrumented."
	)

STATISTIC() [17/20]

STATISTIC	(	NumOfPGOMismatch	,
		"Number of functions having mismatch profile."
	)

STATISTIC() [18/20]

STATISTIC	(	NumOfPGOMissing	,
		"Number of functions without profile."
	)

STATISTIC() [19/20]

STATISTIC	(	NumOfPGOSelectInsts	,
		"Number of select instruction instrumented."
	)

STATISTIC() [20/20]

STATISTIC	(	NumOfPGOSplit	,
		"Number of critical edge splits."
	)

sumEdgeCount()

static uint64_t sumEdgeCount ( const ArrayRef< PGOUseEdge * >  Edges )

static

Definition at line 1099 of file PGOInstrumentation.cpp.

References llvm::Total.

verifyFuncBFI()

static void verifyFuncBFI ( PGOUseFunc &  Func, LoopInfo &  LI, BranchProbabilityInfo &  NBPI, uint64_t  HotCountThreshold, uint64_t  ColdCountThreshold  )

static

Definition at line 1999 of file PGOInstrumentation.cpp.

References ColdCountThreshold, DEBUG_TYPE, llvm::OptimizationRemarkEmitter::emit(), llvm::StringRef::empty(), F, llvm::BlockFrequencyInfo::getBlockProfileCount(), PGOVerifyBFICutoff, PGOVerifyBFIRatio, PGOVerifyHotBFI, and llvm::Remark.

Referenced by annotateAllFunctions().

Variable Documentation

DisableValueProfiling

cl::opt< bool > DisableValueProfiling("disable-vp", cl::init(false), cl::Hidden, cl::desc("Disable Value Profiling")) ( "disable-vp"  , cl::init(false)  , cl::Hidden  , cl::desc("Disable Value Profiling")    )

static

DoComdatRenaming

cl::opt< bool > DoComdatRenaming("do-comdat-renaming", cl::init(false), cl::Hidden, cl::desc("Append function hash to the name of COMDAT function to avoid " "function hash mismatch due to the preinliner")) ( "do-comdat-renaming"  , cl::init(false)  , cl::Hidden  , cl::desc("Append function hash to the name of COMDAT function to avoid " "function hash mismatch due to the preinliner")    )

static

Referenced by canRenameComdat(), and collectComdatMembers().

EmitBranchProbability

cl::opt< bool > EmitBranchProbability("pgo-emit-branch-prob", cl::init(false), cl::Hidden, cl::desc("When this option is on, the annotated " "branch probability will be emitted as " "optimization remarks: -{Rpass|" "pass-remarks}=pgo-instrumentation")) ( "pgo-emit-branch-prob"  , cl::init(false)  , cl::Hidden  , cl::desc("When this option is on, the annotated " "branch probability will be emitted as " "optimization remarks: -{Rpass|" "pass-remarks}=pgo-instrumentation")    )

static

Referenced by llvm::setProfMetadata().

MaxNumAnnotations

cl::opt< unsigned > MaxNumAnnotations("icp-max-annotations", cl::init(3), cl::Hidden, cl::desc("Max number of annotations for a single indirect " "call callsite")) ( "icp-max-annotations"  , cl::init(3)  , cl::Hidden  , cl::desc("Max number of annotations for a single indirect " "call callsite")    )

static

Referenced by getMaxNumAnnotations().

MaxNumMemOPAnnotations

cl::opt< unsigned > MaxNumMemOPAnnotations("memop-max-annotations", cl::init(4), cl::Hidden, cl::desc("Max number of preicise value annotations for a single memop" "intrinsic")) ( "memop-max-annotations"  , cl::init(4)  , cl::Hidden  , cl::desc("Max number of preicise value annotations for a single memop" "intrinsic")    )

static

Referenced by getMaxNumAnnotations().

MaxNumVTableAnnotations

cl::opt<unsigned> MaxNumVTableAnnotations

extern

Referenced by getMaxNumAnnotations().

PGOBlockCoverage

cl::opt< bool > PGOBlockCoverage("pgo-block-coverage", cl::desc("Use this option to enable basic block coverage instrumentation")) ( "pgo-block-coverage"  , cl::desc("Use this option to enable basic block coverage instrumentation")    )

static

Referenced by createIRLevelProfileFlagVar().

PGOFixEntryCount

cl::opt< bool > PGOFixEntryCount("pgo-fix-entry-count", cl::init(true), cl::Hidden, cl::desc("Fix function entry count in profile use.")) ( "pgo-fix-entry-count"  , cl::init(true)  , cl::Hidden  , cl::desc("Fix function entry count in profile use.")    )

static

Referenced by annotateAllFunctions().

PGOFunctionCriticalEdgeThreshold

cl::opt< unsigned > PGOFunctionCriticalEdgeThreshold("pgo-critical-edge-threshold", cl::init(20000), cl::Hidden, cl::desc("Do not instrument functions with the number of critical edges " " greater than this threshold.")) ( "pgo-critical-edge-threshold"  , cl::init(20000)  , cl::Hidden  , cl::desc("Do not instrument functions with the number of critical edges " " greater than this threshold.")    )

static

Referenced by skipPGOUse().

PGOFunctionEntryCoverage

cl::opt< bool > PGOFunctionEntryCoverage("pgo-function-entry-coverage", cl::Hidden, cl::desc( "Use this option to enable function entry coverage instrumentation.")) ( "pgo-function-entry-coverage"  , cl::Hidden  , cl::desc( "Use this option to enable function entry coverage instrumentation.")    )

static

Referenced by createIRLevelProfileFlagVar().

PGOFunctionSizeThreshold

cl::opt< unsigned > PGOFunctionSizeThreshold("pgo-function-size-threshold", cl::Hidden, cl::desc("Do not instrument functions smaller than this threshold.")) ( "pgo-function-size-threshold"  , cl::Hidden  , cl::desc("Do not instrument functions smaller than this threshold.")    )

static

Referenced by skipPGOGen().

PGOInstrMemOP

cl::opt< bool > PGOInstrMemOP("pgo-instr-memop", cl::init(true), cl::Hidden, cl::desc("Use this option to turn on/off " "memory intrinsic size profiling.")) ( "pgo-instr-memop"  , cl::init(true)  , cl::Hidden  , cl::desc("Use this option to turn on/off " "memory intrinsic size profiling.")    )

static

PGOInstrSelect

cl::opt< bool > PGOInstrSelect("pgo-instr-select", cl::init(true), cl::Hidden, cl::desc("Use this option to turn on/off SELECT " "instruction instrumentation. ")) ( "pgo-instr-select"  , cl::init(true)  , cl::Hidden  , cl::desc("Use this option to turn on/off SELECT " "instruction instrumentation. ")    )

static

Referenced by llvm::DOTGraphTraits< PGOUseFunc * >::getNodeLabel().

PGOInstrumentEntry

cl::opt< bool > PGOInstrumentEntry("pgo-instrument-entry", cl::init(false), cl::Hidden, cl::desc("Force to instrument function entry basicblock.")) ( "pgo-instrument-entry"  , cl::init(false)  , cl::Hidden  , cl::desc("Force to instrument function entry basicblock.")    )

static

Referenced by annotateAllFunctions(), and createIRLevelProfileFlagVar().

PGOTemporalInstrumentation

cl::opt< bool > PGOTemporalInstrumentation("pgo-temporal-instrumentation", cl::desc("Use this option to enable temporal instrumentation")) ( "pgo-temporal-instrumentation"  , cl::desc("Use this option to enable temporal instrumentation")    )

static

Referenced by createIRLevelProfileFlagVar().

PGOTestProfileFile

cl::opt< std::string > PGOTestProfileFile("pgo-test-profile-file", cl::init(""), cl::Hidden, cl::value_desc("filename"), cl::desc("Specify the path of profile data file. This is" "mainly for test purpose.")) ( "pgo-test-profile-file"  , cl::init("")  , cl::Hidden  , cl::value_desc("filename")  , cl::desc("Specify the path of profile data file. This is" "mainly for test purpose.")    )

static

Referenced by llvm::PGOInstrumentationUse::PGOInstrumentationUse().

PGOTestProfileRemappingFile

cl::opt< std::string > PGOTestProfileRemappingFile("pgo-test-profile-remapping-file", cl::init(""), cl::Hidden, cl::value_desc("filename"), cl::desc("Specify the path of profile remapping file. This is mainly for " "test purpose.")) ( "pgo-test-profile-remapping-file"  , cl::init("")  , cl::Hidden  , cl::value_desc("filename")  , cl::desc("Specify the path of profile remapping file. This is mainly for " "test purpose.")    )

static

Referenced by llvm::PGOInstrumentationUse::PGOInstrumentationUse().

PGOTraceFuncHash

cl::opt< std::string > PGOTraceFuncHash("pgo-trace-func-hash", cl::init("-"), cl::Hidden, cl::value_desc("function name"), cl::desc("Trace the hash of the function with this name.")) ( "pgo-trace-func-hash"  , cl::init("-")  , cl::Hidden  , cl::value_desc("function name")  , cl::desc("Trace the hash of the function with this name.")    )

static

PGOVerifyBFI

cl::opt< bool > PGOVerifyBFI("pgo-verify-bfi", cl::init(false), cl::Hidden, cl::desc("Print out mismatched BFI counts after setting profile metadata " "The print is enabled under -Rpass-analysis=pgo, or " "internal option -pass-remakrs-analysis=pgo.")) ( "pgo-verify-bfi"  , cl::init(false)  , cl::Hidden  , cl::desc("Print out mismatched BFI counts after setting profile metadata " "The print is enabled under -Rpass-analysis=pgo, or " "internal option -pass-remakrs-analysis=pgo.")    )

static

Referenced by annotateAllFunctions().

PGOVerifyBFICutoff

cl::opt< unsigned > PGOVerifyBFICutoff("pgo-verify-bfi-cutoff", cl::init(5), cl::Hidden, cl::desc("Set the threshold for pgo-verify-bfi: skip the counts whose " "profile count value is below.")) ( "pgo-verify-bfi-cutoff"  , cl::init(5)  , cl::Hidden  , cl::desc("Set the threshold for pgo-verify-bfi: skip the counts whose " "profile count value is below.")    )

static

Referenced by verifyFuncBFI().

PGOVerifyBFIRatio

cl::opt< unsigned > PGOVerifyBFIRatio("pgo-verify-bfi-ratio", cl::init(2), cl::Hidden, cl::desc("Set the threshold for pgo-verify-bfi: only print out " "mismatched BFI if the difference percentage is greater than " "this value (in percentage).")) ( "pgo-verify-bfi-ratio"  , cl::init(2)  , cl::Hidden  , cl::desc("Set the threshold for pgo-verify-bfi: only print out " "mismatched BFI if the difference percentage is greater than " "this value (in percentage).")    )

static

Referenced by verifyFuncBFI().

PGOVerifyHotBFI

cl::opt< bool > PGOVerifyHotBFI("pgo-verify-hot-bfi", cl::init(false), cl::Hidden, cl::desc("Print out the non-match BFI count if a hot raw profile count " "becomes non-hot, or a cold raw profile count becomes hot. " "The print is enabled under -Rpass-analysis=pgo, or " "internal option -pass-remakrs-analysis=pgo.")) ( "pgo-verify-hot-bfi"  , cl::init(false)  , cl::Hidden  , cl::desc("Print out the non-match BFI count if a hot raw profile count " "becomes non-hot, or a cold raw profile count becomes hot. " "The print is enabled under -Rpass-analysis=pgo, or " "internal option -pass-remakrs-analysis=pgo.")    )

static

Referenced by annotateAllFunctions(), and verifyFuncBFI().

PGOViewBlockCoverageGraph

cl::opt< bool > PGOViewBlockCoverageGraph("pgo-view-block-coverage-graph", cl::desc("Create a dot file of CFGs with block " "coverage inference information")) ( "pgo-view-block-coverage-graph"  , cl::desc("Create a dot file of CFGs with block " "coverage inference information")    )

static

PGOViewRawCounts

cl::opt< PGOViewCountsType > PGOViewRawCounts("pgo-view-raw-counts", cl::Hidden, cl::desc("A boolean option to show CFG dag or text " "with raw profile counts from " "profile data. See also option " "-pgo-view-counts. To limit graph " "display to only one function, use " "filtering option -view-bfi-func-name."), cl::values(clEnumValN(PGOVCT_None, "none", "do not show."), clEnumValN(PGOVCT_Graph, "graph", "show a graph."), clEnumValN(PGOVCT_Text, "text", "show in text."))) ( "pgo-view-raw-counts"  , cl::Hidden  , cl::desc("A boolean option to show CFG dag or text " "with raw profile counts from " "profile data. See also option " "-pgo-view-counts. To limit graph " "display to only one function, use " "filtering option -view-bfi-func-name.")  , cl::values(clEnumValN(PGOVCT_None, "none", "do not show."), clEnumValN(PGOVCT_Graph, "graph", "show a graph."), clEnumValN(PGOVCT_Text, "text", "show in text."))    )

static

Referenced by annotateAllFunctions().

ValueProfKindDescr

const char* ValueProfKindDescr[]

static

Initial value:

= {
#define VALUE_PROF_KIND(Enumerator, Value, Descr)       
 
}

Definition at line 411 of file PGOInstrumentation.cpp.