public:

explicit RuntimeProfiler(Isolate* isolate);

// Called from the interpreter when the bytecode interrupt has been exhausted.

void MarkCandidatesForOptimizationFromBytecode();

// Likewise, from generated code.

void MarkCandidatesForOptimizationFromCode();

void NotifyICChanged() { any_ic_changed_ = true; }

void AttemptOnStackReplacement(UnoptimizedFrame* frame,

int nesting_levels = 1);

private:

// Helper function called from MarkCandidatesForOptimization*

void MarkCandidatesForOptimization(JavaScriptFrame* frame);

// Make the decision whether to optimize the given function, and mark it for

// optimization if the decision was 'yes'.

void MaybeOptimizeFrame(JSFunction function, JavaScriptFrame* frame,

CodeKind code_kind);

// Potentially attempts OSR from and returns whether no other

// optimization attempts should be made.

bool MaybeOSR(JSFunction function, UnoptimizedFrame* frame);

OptimizationReason ShouldOptimize(JSFunction function,

BytecodeArray bytecode_array);

void Optimize(JSFunction function, OptimizationReason reason,

CodeKind code_kind);

void Baseline(JSFunction function, OptimizationReason reason);

class V8_NODISCARD MarkCandidatesForOptimizationScope final {

public:

explicit MarkCandidatesForOptimizationScope(RuntimeProfiler* profiler);

~MarkCandidatesForOptimizationScope();

private:

HandleScope handle_scope_;

RuntimeProfiler* const profiler_;

DisallowGarbageCollection no_gc;

};

Isolate* isolate_;

bool any_ic_changed_;