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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 |
| 141 inline bool is_empty() const; |
| 142 |
139 // Returns number of slots in the vector. | 143 // Returns number of slots in the vector. |
140 inline int slot_count() const; | 144 inline int slot_count() const; |
141 | 145 |
142 // Returns slot kind for given slot. | 146 // Returns slot kind for given slot. |
143 FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; | 147 FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; |
144 | 148 |
145 template <typename Spec> | 149 template <typename Spec> |
146 static Handle<TypeFeedbackMetadata> New(Isolate* isolate, const Spec* spec); | 150 static Handle<TypeFeedbackMetadata> New(Isolate* isolate, const Spec* spec); |
147 | 151 |
148 #ifdef OBJECT_PRINT | 152 #ifdef OBJECT_PRINT |
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187 inline void ComputeCounts(int* with_type_info, int* generic); | 191 inline void ComputeCounts(int* with_type_info, int* generic); |
188 | 192 |
189 inline bool is_empty() const; | 193 inline bool is_empty() const; |
190 | 194 |
191 // Returns number of slots in the vector. | 195 // Returns number of slots in the vector. |
192 inline int slot_count() const; | 196 inline int slot_count() const; |
193 | 197 |
194 inline TypeFeedbackMetadata* metadata() const; | 198 inline TypeFeedbackMetadata* metadata() const; |
195 | 199 |
196 // Conversion from a slot to an integer index to the underlying array. | 200 // Conversion from a slot to an integer index to the underlying array. |
197 inline int GetIndex(FeedbackVectorSlot slot) const; | 201 static inline int GetIndex(FeedbackVectorSlot slot); |
198 static int GetIndexFromSpec(const FeedbackVectorSpec* spec, | 202 static int GetIndexFromSpec(const FeedbackVectorSpec* spec, |
199 FeedbackVectorSlot slot); | 203 FeedbackVectorSlot slot); |
200 | 204 |
201 // Conversion from an integer index to the underlying array to a slot. | 205 // Conversion from an integer index to the underlying array to a slot. |
202 inline FeedbackVectorSlot ToSlot(int index) const; | 206 static inline FeedbackVectorSlot ToSlot(int index); |
203 inline Object* Get(FeedbackVectorSlot slot) const; | 207 inline Object* Get(FeedbackVectorSlot slot) const; |
204 inline void Set(FeedbackVectorSlot slot, Object* value, | 208 inline void Set(FeedbackVectorSlot slot, Object* value, |
205 WriteBarrierMode mode = UPDATE_WRITE_BARRIER); | 209 WriteBarrierMode mode = UPDATE_WRITE_BARRIER); |
206 | 210 |
207 // Returns slot kind for given slot. | 211 // Returns slot kind for given slot. |
208 inline FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; | 212 inline FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; |
209 | 213 |
210 static Handle<TypeFeedbackVector> New(Isolate* isolate, | 214 static Handle<TypeFeedbackVector> New(Isolate* isolate, |
211 Handle<TypeFeedbackMetadata> metadata); | 215 Handle<TypeFeedbackMetadata> metadata); |
212 | 216 |
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539 KeyedAccessStoreMode GetKeyedAccessStoreMode() const; | 543 KeyedAccessStoreMode GetKeyedAccessStoreMode() const; |
540 IcCheckType GetKeyType() const; | 544 IcCheckType GetKeyType() const; |
541 | 545 |
542 InlineCacheState StateFromFeedback() const override; | 546 InlineCacheState StateFromFeedback() const override; |
543 Name* FindFirstName() const override; | 547 Name* FindFirstName() const override; |
544 }; | 548 }; |
545 } // namespace internal | 549 } // namespace internal |
546 } // namespace v8 | 550 } // namespace v8 |
547 | 551 |
548 #endif // V8_TRANSITIONS_H_ | 552 #endif // V8_TRANSITIONS_H_ |
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