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 
12 namespace base {
13 class Semaphore;
14 }
15 
16 namespace internal {
17 
18 class Isolate;
19 class JSFunction;
20 class Object;
21 
22 class RuntimeProfiler {
23  public:
24   explicit RuntimeProfiler(Isolate* isolate);
25 
26   void OptimizeNow();
27 
NotifyICChanged()28   void NotifyICChanged() { any_ic_changed_ = true; }
29 
30   void AttemptOnStackReplacement(JSFunction* function, int nesting_levels = 1);
31 
32  private:
33   void Optimize(JSFunction* function, const char* reason);
34 
35   bool CodeSizeOKForOSR(Code* shared_code);
36 
37   Isolate* isolate_;
38 
39   bool any_ic_changed_;
40 };
41 
42 }  // namespace internal
43 }  // namespace v8
44 
45 #endif  // V8_RUNTIME_PROFILER_H_
46