Line data Source code
1 : // Copyright 2012 the V8 project authors. All rights reserved.
2 : // Use of this source code is governed by a BSD-style license that can be
3 : // found in the LICENSE file.
4 :
5 : #ifndef V8_RUNTIME_PROFILER_H_
6 : #define V8_RUNTIME_PROFILER_H_
7 :
8 : #include "src/allocation.h"
9 :
10 : namespace v8 {
11 : namespace internal {
12 :
13 : class Isolate;
14 : class JavaScriptFrame;
15 : class JSFunction;
16 : enum class OptimizationReason : uint8_t;
17 :
18 : class RuntimeProfiler {
19 : public:
20 : explicit RuntimeProfiler(Isolate* isolate);
21 :
22 : void MarkCandidatesForOptimization();
23 :
24 11154665 : void NotifyICChanged() { any_ic_changed_ = true; }
25 :
26 : void AttemptOnStackReplacement(JavaScriptFrame* frame,
27 : int nesting_levels = 1);
28 :
29 : private:
30 : void MaybeOptimizeFullCodegen(JSFunction* function, JavaScriptFrame* frame,
31 : int frame_count);
32 : void MaybeBaselineIgnition(JSFunction* function, JavaScriptFrame* frame);
33 : void MaybeOptimizeIgnition(JSFunction* function, JavaScriptFrame* frame);
34 : // Potentially attempts OSR from ignition and returns whether no other
35 : // optimization attempts should be made.
36 : bool MaybeOSRIgnition(JSFunction* function, JavaScriptFrame* frame);
37 : OptimizationReason ShouldOptimizeIgnition(JSFunction* function,
38 : JavaScriptFrame* frame);
39 : void Optimize(JSFunction* function, OptimizationReason reason);
40 : void Baseline(JSFunction* function, OptimizationReason reason);
41 :
42 : Isolate* isolate_;
43 : bool any_ic_changed_;
44 : };
45 :
46 : } // namespace internal
47 : } // namespace v8
48 :
49 : #endif // V8_RUNTIME_PROFILER_H_
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