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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_TYPE_FEEDBACK_VECTOR_H_ | 5 #ifndef V8_TYPE_FEEDBACK_VECTOR_H_ |
6 #define V8_TYPE_FEEDBACK_VECTOR_H_ | 6 #define V8_TYPE_FEEDBACK_VECTOR_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "src/base/logging.h" | 10 #include "src/base/logging.h" |
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129 static inline TypeFeedbackMetadata* cast(Object* obj); | 129 static inline TypeFeedbackMetadata* cast(Object* obj); |
130 | 130 |
131 static const int kSlotsCountIndex = 0; | 131 static const int kSlotsCountIndex = 0; |
132 static const int kReservedIndexCount = 1; | 132 static const int kReservedIndexCount = 1; |
133 | 133 |
134 // Returns number of feedback vector elements used by given slot kind. | 134 // Returns number of feedback vector elements used by given slot kind. |
135 static inline int GetSlotSize(FeedbackVectorSlotKind kind); | 135 static inline int GetSlotSize(FeedbackVectorSlotKind kind); |
136 | 136 |
137 bool SpecDiffersFrom(const FeedbackVectorSpec* other_spec) const; | 137 bool SpecDiffersFrom(const FeedbackVectorSpec* other_spec) const; |
138 | 138 |
| 139 bool DiffersFrom(const TypeFeedbackMetadata* other_metadata) const; |
| 140 |
139 // Returns number of slots in the vector. | 141 // Returns number of slots in the vector. |
140 inline int slot_count() const; | 142 inline int slot_count() const; |
141 | 143 |
142 // Returns slot kind for given slot. | 144 // Returns slot kind for given slot. |
143 FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; | 145 FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; |
144 | 146 |
145 template <typename Spec> | 147 template <typename Spec> |
146 static Handle<TypeFeedbackMetadata> New(Isolate* isolate, const Spec* spec); | 148 static Handle<TypeFeedbackMetadata> New(Isolate* isolate, const Spec* spec); |
147 | 149 |
148 #ifdef OBJECT_PRINT | 150 #ifdef OBJECT_PRINT |
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187 inline void ComputeCounts(int* with_type_info, int* generic); | 189 inline void ComputeCounts(int* with_type_info, int* generic); |
188 | 190 |
189 inline bool is_empty() const; | 191 inline bool is_empty() const; |
190 | 192 |
191 // Returns number of slots in the vector. | 193 // Returns number of slots in the vector. |
192 inline int slot_count() const; | 194 inline int slot_count() const; |
193 | 195 |
194 inline TypeFeedbackMetadata* metadata() const; | 196 inline TypeFeedbackMetadata* metadata() const; |
195 | 197 |
196 // Conversion from a slot to an integer index to the underlying array. | 198 // Conversion from a slot to an integer index to the underlying array. |
197 inline int GetIndex(FeedbackVectorSlot slot) const; | 199 static inline int GetIndex(FeedbackVectorSlot slot); |
198 static int GetIndexFromSpec(const FeedbackVectorSpec* spec, | 200 static int GetIndexFromSpec(const FeedbackVectorSpec* spec, |
199 FeedbackVectorSlot slot); | 201 FeedbackVectorSlot slot); |
200 | 202 |
201 // Conversion from an integer index to the underlying array to a slot. | 203 // Conversion from an integer index to the underlying array to a slot. |
202 inline FeedbackVectorSlot ToSlot(int index) const; | 204 static inline FeedbackVectorSlot ToSlot(int index); |
203 inline Object* Get(FeedbackVectorSlot slot) const; | 205 inline Object* Get(FeedbackVectorSlot slot) const; |
204 inline void Set(FeedbackVectorSlot slot, Object* value, | 206 inline void Set(FeedbackVectorSlot slot, Object* value, |
205 WriteBarrierMode mode = UPDATE_WRITE_BARRIER); | 207 WriteBarrierMode mode = UPDATE_WRITE_BARRIER); |
206 | 208 |
207 // Returns slot kind for given slot. | 209 // Returns slot kind for given slot. |
208 inline FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; | 210 inline FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; |
209 | 211 |
210 static Handle<TypeFeedbackVector> New(Isolate* isolate, | 212 static Handle<TypeFeedbackVector> New(Isolate* isolate, |
211 Handle<TypeFeedbackMetadata> metadata); | 213 Handle<TypeFeedbackMetadata> metadata); |
212 | 214 |
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534 KeyedAccessStoreMode GetKeyedAccessStoreMode() const; | 536 KeyedAccessStoreMode GetKeyedAccessStoreMode() const; |
535 IcCheckType GetKeyType() const; | 537 IcCheckType GetKeyType() const; |
536 | 538 |
537 InlineCacheState StateFromFeedback() const override; | 539 InlineCacheState StateFromFeedback() const override; |
538 Name* FindFirstName() const override; | 540 Name* FindFirstName() const override; |
539 }; | 541 }; |
540 } // namespace internal | 542 } // namespace internal |
541 } // namespace v8 | 543 } // namespace v8 |
542 | 544 |
543 #endif // V8_TRANSITIONS_H_ | 545 #endif // V8_TRANSITIONS_H_ |
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