Type Feedback Vector: Calculate profiler counts on the fly.

src/type-feedback-vector.h

 // Copyright 2014 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_TYPE_FEEDBACK_VECTOR_H_
 #define V8_TYPE_FEEDBACK_VECTOR_H_
 
 #include <vector>
 
 #include "src/base/logging.h"
@@ skipping 164 matching lines @@
 // 3: feedback slot #0 (N >= 3)
 // ...
 // N + slot_count - 1: feedback slot #(slot_count-1)
 //
 class TypeFeedbackVector : public FixedArray {
  public:
   // Casting.
   static inline TypeFeedbackVector* cast(Object* obj);
 
   static const int kMetadataIndex = 0;
-  static const int kWithTypesIndex = 1;
-  static const int kGenericCountIndex = 2;
-  static const int kReservedIndexCount = 3;
+  static const int kReservedIndexCount = 1;
 
-  inline int ic_with_type_info_count();
-  inline void change_ic_with_type_info_count(int delta);
-  inline int ic_generic_count();
-  inline void change_ic_generic_count(int delta);
+  inline void compute_counts(int* with_type_info, int* generic);

[Benedikt Meurer, 2015/12/09 07:23:02]

ComputeCounts

[mvstanton, 2015/12/09 07:37:32]

Done.

 
   inline bool is_empty() const;
 
   // Returns number of slots in the vector.
   inline int slot_count() const;
 
   inline TypeFeedbackMetadata* metadata() const;
 
   // Conversion from a slot to an integer index to the underlying array.
   inline int GetIndex(FeedbackVectorSlot slot) const;
@@ skipping 340 matching lines @@
   KeyedAccessStoreMode GetKeyedAccessStoreMode() const;
   IcCheckType GetKeyType() const;
 
   InlineCacheState StateFromFeedback() const override;
   Name* FindFirstName() const override;
 };
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TRANSITIONS_H_