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// Copyright 2012 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_EXECUTION_RUNTIME_PROFILER_H_
#define V8_EXECUTION_RUNTIME_PROFILER_H_
#include "src/utils/allocation.h"
namespace v8 {
namespace internal {
class BytecodeArray;
class Isolate;
class InterpretedFrame;
class JSFunction;
enum class OptimizationReason : uint8_t;
class RuntimeProfiler {
public:
explicit RuntimeProfiler(Isolate* isolate);
void MarkCandidatesForOptimization();
void NotifyICChanged() { any_ic_changed_ = true; }
void AttemptOnStackReplacement(InterpretedFrame* frame,
int nesting_levels = 1);
private:
void MaybeOptimize(JSFunction function, InterpretedFrame* frame);
// Potentially attempts OSR from and returns whether no other
// optimization attempts should be made.
bool MaybeOSR(JSFunction function, InterpretedFrame* frame);
OptimizationReason ShouldOptimize(JSFunction function,
BytecodeArray bytecode_array);
void Optimize(JSFunction function, OptimizationReason reason);
void Baseline(JSFunction function, OptimizationReason reason);
Isolate* isolate_;
bool any_ic_changed_;
};
} // namespace internal
} // namespace v8
#endif // V8_EXECUTION_RUNTIME_PROFILER_H_
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