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Showing content from https://clang.llvm.org/doxygen/classclang_1_1CodeGen_1_1CodeGenPGO.html below:

clang: clang::CodeGen::CodeGenPGO Class Reference

Per-function PGO state. More...

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

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) std::pair< bool, bool > getIsCounterPair (const Stmt *S) const 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) void markStmtAsUsed (bool Skipped, const Stmt *S) void markStmtMaybeUsed (const Stmt *S) void verifyCounterMap () const uint64_t getRegionCount (const Stmt *S) Return the region count for the counter at the given index.

Per-function PGO state.

Definition at line 29 of file CodeGenPGO.h.

◆ CodeGenPGO() ◆ 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 1012 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.

◆ emitCounterSetOrIncrement() void CodeGenPGO::emitCounterSetOrIncrement ( CGBuilderTy & Builder, const Stmt * S, llvm::Value * StepV ) ◆ emitEmptyCounterMapping() void CodeGenPGO::emitEmptyCounterMapping ( const Decl * D, StringRef FuncName, llvm::GlobalValue::LinkageTypes Linkage ) ◆ emitMCDCCondBitmapReset() ◆ emitMCDCCondBitmapUpdate() ◆ emitMCDCParameters() void CodeGenPGO::emitMCDCParameters ( CGBuilderTy & Builder ) ◆ emitMCDCTestVectorBitmapUpdate() ◆ getCurrentRegionCount() uint64_t clang::CodeGen::CodeGenPGO::getCurrentRegionCount ( ) const inline

Return the counter value of the current region.

Definition at line 56 of file CodeGenPGO.h.

◆ getIsCounterPair() ◆ getRegionCount() uint64_t clang::CodeGen::CodeGenPGO::getRegionCount ( const Stmt * S ) inline ◆ getStmtCount() std::optional< uint64_t > clang::CodeGen::CodeGenPGO::getStmtCount ( const Stmt * S ) const inline

Check if an execution count is known for a given statement.

If so, return true and put the value in Count; else return false.

Definition at line 65 of file CodeGenPGO.h.

Referenced by setCurrentStmt().

◆ haveRegionCounts() bool clang::CodeGen::CodeGenPGO::haveRegionCounts ( ) const inline

Whether or not we have PGO region data for the current function.

This is false both when we have no data at all and when our data has been discarded.

Definition at line 53 of file CodeGenPGO.h.

Referenced by getRegionCount(), and valueProfile().

◆ markStmtAsUsed() void clang::CodeGen::CodeGenPGO::markStmtAsUsed ( bool Skipped, const Stmt * S ) inline

Definition at line 126 of file CodeGenPGO.h.

◆ markStmtMaybeUsed() void clang::CodeGen::CodeGenPGO::markStmtMaybeUsed ( const Stmt * S ) inline

Definition at line 130 of file CodeGenPGO.h.

◆ setCurrentRegionCount() void clang::CodeGen::CodeGenPGO::setCurrentRegionCount ( uint64_t Count ) inline

Set the counter value for the current region.

This is used to keep track of changes to the most recent counter from control flow and non-local exits.

Definition at line 61 of file CodeGenPGO.h.

Referenced by setCurrentStmt().

◆ setCurrentStmt() void clang::CodeGen::CodeGenPGO::setCurrentStmt ( const Stmt * S ) inline ◆ setProfileVersion() void CodeGenPGO::setProfileVersion ( llvm::Module & M ) ◆ setValueProfilingFlag() void CodeGenPGO::setValueProfilingFlag ( llvm::Module & M ) ◆ valueProfile() void CodeGenPGO::valueProfile ( CGBuilderTy & Builder, uint32_t ValueKind, llvm::Instruction * ValueSite, llvm::Value * ValuePtr ) ◆ verifyCounterMap() void clang::CodeGen::CodeGenPGO::verifyCounterMap ( ) const inline

Definition at line 134 of file CodeGenPGO.h.

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

lib/CodeGen/CodeGenPGO.h
lib/CodeGen/CodeGenPGO.cpp

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