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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 // Returns number of slots in the vector. | 139 // Returns number of slots in the vector. |
142 inline int slot_count() const; | 140 inline int slot_count() const; |
143 | 141 |
144 // Returns slot kind for given slot. | 142 // Returns slot kind for given slot. |
145 FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; | 143 FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; |
146 | 144 |
147 template <typename Spec> | 145 template <typename Spec> |
148 static Handle<TypeFeedbackMetadata> New(Isolate* isolate, const Spec* spec); | 146 static Handle<TypeFeedbackMetadata> New(Isolate* isolate, const Spec* spec); |
149 | 147 |
150 #ifdef OBJECT_PRINT | 148 #ifdef OBJECT_PRINT |
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189 inline void ComputeCounts(int* with_type_info, int* generic); | 187 inline void ComputeCounts(int* with_type_info, int* generic); |
190 | 188 |
191 inline bool is_empty() const; | 189 inline bool is_empty() const; |
192 | 190 |
193 // Returns number of slots in the vector. | 191 // Returns number of slots in the vector. |
194 inline int slot_count() const; | 192 inline int slot_count() const; |
195 | 193 |
196 inline TypeFeedbackMetadata* metadata() const; | 194 inline TypeFeedbackMetadata* metadata() const; |
197 | 195 |
198 // Conversion from a slot to an integer index to the underlying array. | 196 // Conversion from a slot to an integer index to the underlying array. |
199 static inline int GetIndex(FeedbackVectorSlot slot); | 197 inline int GetIndex(FeedbackVectorSlot slot) const; |
200 static int GetIndexFromSpec(const FeedbackVectorSpec* spec, | 198 static int GetIndexFromSpec(const FeedbackVectorSpec* spec, |
201 FeedbackVectorSlot slot); | 199 FeedbackVectorSlot slot); |
202 | 200 |
203 // Conversion from an integer index to the underlying array to a slot. | 201 // Conversion from an integer index to the underlying array to a slot. |
204 static inline FeedbackVectorSlot ToSlot(int index); | 202 inline FeedbackVectorSlot ToSlot(int index) const; |
205 inline Object* Get(FeedbackVectorSlot slot) const; | 203 inline Object* Get(FeedbackVectorSlot slot) const; |
206 inline void Set(FeedbackVectorSlot slot, Object* value, | 204 inline void Set(FeedbackVectorSlot slot, Object* value, |
207 WriteBarrierMode mode = UPDATE_WRITE_BARRIER); | 205 WriteBarrierMode mode = UPDATE_WRITE_BARRIER); |
208 | 206 |
209 // Returns slot kind for given slot. | 207 // Returns slot kind for given slot. |
210 inline FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; | 208 inline FeedbackVectorSlotKind GetKind(FeedbackVectorSlot slot) const; |
211 | 209 |
212 static Handle<TypeFeedbackVector> New(Isolate* isolate, | 210 static Handle<TypeFeedbackVector> New(Isolate* isolate, |
213 Handle<TypeFeedbackMetadata> metadata); | 211 Handle<TypeFeedbackMetadata> metadata); |
214 | 212 |
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536 KeyedAccessStoreMode GetKeyedAccessStoreMode() const; | 534 KeyedAccessStoreMode GetKeyedAccessStoreMode() const; |
537 IcCheckType GetKeyType() const; | 535 IcCheckType GetKeyType() const; |
538 | 536 |
539 InlineCacheState StateFromFeedback() const override; | 537 InlineCacheState StateFromFeedback() const override; |
540 Name* FindFirstName() const override; | 538 Name* FindFirstName() const override; |
541 }; | 539 }; |
542 } // namespace internal | 540 } // namespace internal |
543 } // namespace v8 | 541 } // namespace v8 |
544 | 542 |
545 #endif // V8_TRANSITIONS_H_ | 543 #endif // V8_TRANSITIONS_H_ |
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