Per-function PGO state. More...

#include "/home/buildbot/as-worker-4/publish-doxygen-docs/llvm-project/clang/lib/CodeGen/CodeGenPGO.h"

Public Member Functions
	CodeGenPGO (CodeGenModule &CGModule)

bool	haveRegionCounts () const
	Whether or not we have PGO region data for the current function.

uint64_t	getCurrentRegionCount () const
	Return the counter value of the current region.

void	setCurrentRegionCount (uint64_t Count)
	Set the counter value for the current region.

std::optional< uint64_t >	getStmtCount (const Stmt *S) const
	Check if an execution count is known for a given statement.

void	setCurrentStmt (const Stmt *S)
	If the execution count for the current statement is known, record that as the current count.

void	assignRegionCounters (GlobalDecl GD, llvm::Function *Fn)
	Assign counters to regions and configure them for PGO of a given function.

void	emitEmptyCounterMapping (const Decl *D, StringRef FuncName, llvm::GlobalValue::LinkageTypes Linkage)
	Emit a coverage mapping range with a counter zero for an unused declaration.

void	valueProfile (CGBuilderTy &Builder, uint32_t ValueKind, llvm::Instruction ValueSite, llvm::Value ValuePtr)

void	setValueProfilingFlag (llvm::Module &M)

void	setProfileVersion (llvm::Module &M)

void	emitCounterSetOrIncrement (CGBuilderTy &Builder, const Stmt S, llvm::Value StepV)

void	emitMCDCTestVectorBitmapUpdate (CGBuilderTy &Builder, const Expr *S, Address MCDCCondBitmapAddr, CodeGenFunction &CGF)

void	emitMCDCParameters (CGBuilderTy &Builder)

void	emitMCDCCondBitmapReset (CGBuilderTy &Builder, const Expr *S, Address MCDCCondBitmapAddr)

void	emitMCDCCondBitmapUpdate (CGBuilderTy &Builder, const Expr S, Address MCDCCondBitmapAddr, llvm::Value Val, CodeGenFunction &CGF)

uint64_t	getRegionCount (const Stmt *S)
	Return the region count for the counter at the given index.

Detailed Description

Per-function PGO state.

Definition at line 29 of file CodeGenPGO.h.

Constructor & Destructor Documentation

◆ CodeGenPGO()

clang::CodeGen::CodeGenPGO::CodeGenPGO ( CodeGenModule & CGModule )

inline

Definition at line 46 of file CodeGenPGO.h.

Member Function Documentation

◆ assignRegionCounters()

void CodeGenPGO::assignRegionCounters	(	GlobalDecl	GD,
		llvm::Function *	Fn
	)

Assign counters to regions and configure them for PGO of a given function.

Does nothing if instrumentation is not enabled and either generates global variables or associates PGO data with each of the counters depending on whether we are generating or using instrumentation.

Definition at line 1013 of file CodeGenPGO.cpp.

References clang::CodeGen::CodeGenModule::ClearUnusedCoverageMapping(), clang::Ctor_Base, D, clang::Dtor_Base, clang::CodeGen::CodeGenModule::getCodeGenOpts(), clang::CodeGen::CodeGenModule::getContext(), clang::GlobalDecl::getCtorType(), clang::TargetInfo::getCXXABI(), clang::GlobalDecl::getDecl(), clang::GlobalDecl::getDtorType(), clang::CodeGen::CodeGenModule::getLangOpts(), clang::Decl::getLocation(), clang::CodeGen::CodeGenModule::getPGOReader(), clang::ASTContext::getSourceManager(), clang::CodeGen::CodeGenModule::getTarget(), clang::Decl::hasAttr(), clang::Decl::hasBody(), clang::TargetCXXABI::hasConstructorVariants(), clang::CodeGenOptions::hasProfileClangInstr(), clang::CodeGen::CodeGenFunction::IsConstructorDelegationValid(), clang::Decl::isImplicit(), SM, and llvm::coverage::SystemHeadersCoverage.