clang
15.0.0git
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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. More... | |
uint64_t | getCurrentRegionCount () const |
Return the counter value of the current region. More... | |
void | setCurrentRegionCount (uint64_t Count) |
Set the counter value for the current region. More... | |
Optional< uint64_t > | getStmtCount (const Stmt *S) const |
Check if an execution count is known for a given statement. More... | |
void | setCurrentStmt (const Stmt *S) |
If the execution count for the current statement is known, record that as the current count. More... | |
void | assignRegionCounters (GlobalDecl GD, llvm::Function *Fn) |
Assign counters to regions and configure them for PGO of a given function. More... | |
void | emitEmptyCounterMapping (const Decl *D, StringRef FuncName, llvm::GlobalValue::LinkageTypes Linkage) |
Emit a coverage mapping range with a counter zero for an unused declaration. More... | |
void | valueProfile (CGBuilderTy &Builder, uint32_t ValueKind, llvm::Instruction *ValueSite, llvm::Value *ValuePtr) |
void | setValueProfilingFlag (llvm::Module &M) |
void | emitCounterIncrement (CGBuilderTy &Builder, const Stmt *S, llvm::Value *StepV) |
uint64_t | getRegionCount (const Stmt *S) |
Return the region count for the counter at the given index. More... | |
Per-function PGO state.
Definition at line 27 of file CodeGenPGO.h.
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Definition at line 43 of file CodeGenPGO.h.
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 794 of file CodeGenPGO.cpp.
References clang::CodeGen::CodeGenModule::ClearUnusedCoverageMapping(), clang::Ctor_Base, 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(), and SM.
Referenced by clang::CodeGen::CodeGenFunction::GenerateBlockFunction(), clang::CodeGen::CodeGenFunction::GenerateCode(), and clang::CodeGen::CodeGenFunction::GenerateObjCMethod().
void CodeGenPGO::emitCounterIncrement | ( | CGBuilderTy & | Builder, |
const Stmt * | S, | ||
llvm::Value * | StepV | ||
) |
Definition at line 950 of file CodeGenPGO.cpp.
void CodeGenPGO::emitEmptyCounterMapping | ( | const Decl * | D, |
StringRef | FuncName, | ||
llvm::GlobalValue::LinkageTypes | Linkage | ||
) |
Emit a coverage mapping range with a counter zero for an unused declaration.
Definition at line 906 of file CodeGenPGO.cpp.
Referenced by clang::CodeGen::CodeGenModule::EmitDeferredUnusedCoverageMappings().
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inline |
Return the counter value of the current region.
Definition at line 53 of file CodeGenPGO.h.
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inline |
Return the region count for the counter at the given index.
Definition at line 111 of file CodeGenPGO.h.
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 62 of file CodeGenPGO.h.
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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 50 of file CodeGenPGO.h.
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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 58 of file CodeGenPGO.h.
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If the execution count for the current statement is known, record that as the current count.
Definition at line 73 of file CodeGenPGO.h.
Referenced by clang::CodeGen::CodeGenFunction::EvaluateExprAsBool().
void CodeGenPGO::setValueProfilingFlag | ( | llvm::Module & | M | ) |
Definition at line 973 of file CodeGenPGO.cpp.
References EnableValueProfiling(), clang::CodeGen::CodeGenModule::getCodeGenOpts(), clang::CodeGenOptions::hasProfileClangInstr(), and clang::serialized_diags::Warning.
Referenced by clang::CodeGen::CodeGenModule::Release().
void CodeGenPGO::valueProfile | ( | CGBuilderTy & | Builder, |
uint32_t | ValueKind, | ||
llvm::Instruction * | ValueSite, | ||
llvm::Value * | ValuePtr | ||
) |
Definition at line 981 of file CodeGenPGO.cpp.
Referenced by clang::CodeGen::CodeGenFunction::EmitCall().