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1 // Copyright 2012 the V8 project authors. All rights reserved. | 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 | 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_IC_H_ | 5 #ifndef V8_IC_H_ |
6 #define V8_IC_H_ | 6 #define V8_IC_H_ |
7 | 7 |
8 #include "src/ic/ic-state.h" | 8 #include "src/ic/ic-state.h" |
9 #include "src/macro-assembler.h" | 9 #include "src/macro-assembler.h" |
10 #include "src/messages.h" | 10 #include "src/messages.h" |
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177 static void OnTypeFeedbackChanged(Isolate* isolate, Address address, | 177 static void OnTypeFeedbackChanged(Isolate* isolate, Address address, |
178 State old_state, State new_state, | 178 State old_state, State new_state, |
179 bool target_remains_ic_stub); | 179 bool target_remains_ic_stub); |
180 // As a vector-based IC, type feedback must be updated differently. | 180 // As a vector-based IC, type feedback must be updated differently. |
181 static void OnTypeFeedbackChanged(Isolate* isolate, Code* host, | 181 static void OnTypeFeedbackChanged(Isolate* isolate, Code* host, |
182 TypeFeedbackVector* vector, State old_state, | 182 TypeFeedbackVector* vector, State old_state, |
183 State new_state); | 183 State new_state); |
184 static void PostPatching(Address address, Code* target, Code* old_target); | 184 static void PostPatching(Address address, Code* target, Code* old_target); |
185 | 185 |
186 // Compute the handler either by compiling or by retrieving a cached version. | 186 // Compute the handler either by compiling or by retrieving a cached version. |
187 Handle<Code> ComputeHandler(LookupIterator* lookup, | 187 virtual Handle<Code> ComputeHandler( |
188 Handle<Object> value = Handle<Code>::null()); | 188 LookupIterator* lookup, Handle<Object> value = Handle<Code>::null()); |
189 virtual Handle<Code> CompileHandler(LookupIterator* lookup, | 189 virtual Handle<Code> CompileHandler(LookupIterator* lookup, |
190 Handle<Object> value, | 190 Handle<Object> value, |
191 CacheHolderFlag cache_holder) { | 191 CacheHolderFlag cache_holder) { |
192 UNREACHABLE(); | 192 UNREACHABLE(); |
193 return Handle<Code>::null(); | 193 return Handle<Code>::null(); |
194 } | 194 } |
195 | 195 |
196 void UpdateMonomorphicIC(Handle<Code> handler, Handle<Name> name); | 196 void UpdateMonomorphicIC(Handle<Code> handler, Handle<Name> name); |
197 bool UpdatePolymorphicIC(Handle<Name> name, Handle<Code> code); | 197 bool UpdatePolymorphicIC(Handle<Name> name, Handle<Code> code); |
198 void UpdateMegamorphicCache(Map* map, Name* name, Code* code); | 198 void UpdateMegamorphicCache(Map* map, Name* name, Code* code); |
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425 : isolate()->builtins()->KeyedLoadIC_Slow(); | 425 : isolate()->builtins()->KeyedLoadIC_Slow(); |
426 } | 426 } |
427 } | 427 } |
428 | 428 |
429 Handle<Code> megamorphic_stub() override; | 429 Handle<Code> megamorphic_stub() override; |
430 | 430 |
431 // Update the inline cache and the global stub cache based on the | 431 // Update the inline cache and the global stub cache based on the |
432 // lookup result. | 432 // lookup result. |
433 void UpdateCaches(LookupIterator* lookup); | 433 void UpdateCaches(LookupIterator* lookup); |
434 | 434 |
435 virtual Handle<Code> CompileHandler(LookupIterator* lookup, | 435 Handle<Code> ComputeHandler( |
436 Handle<Object> unused, | 436 LookupIterator* lookup, |
437 CacheHolderFlag cache_holder) override; | 437 Handle<Object> value = Handle<Code>::null()) override; |
| 438 Handle<Code> CompileHandler(LookupIterator* lookup, Handle<Object> unused, |
| 439 CacheHolderFlag cache_holder) override; |
438 | 440 |
439 private: | 441 private: |
440 Handle<Code> SimpleFieldLoad(FieldIndex index); | 442 Handle<Code> SimpleFieldLoad(FieldIndex index); |
441 | 443 |
442 static void Clear(Isolate* isolate, Address address, Code* target, | 444 static void Clear(Isolate* isolate, Address address, Code* target, |
443 Address constant_pool); | 445 Address constant_pool); |
444 | 446 |
445 friend class IC; | 447 friend class IC; |
446 }; | 448 }; |
447 | 449 |
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766 | 768 |
767 // Support functions for interceptor handlers. | 769 // Support functions for interceptor handlers. |
768 DECLARE_RUNTIME_FUNCTION(LoadPropertyWithInterceptorOnly); | 770 DECLARE_RUNTIME_FUNCTION(LoadPropertyWithInterceptorOnly); |
769 DECLARE_RUNTIME_FUNCTION(LoadPropertyWithInterceptor); | 771 DECLARE_RUNTIME_FUNCTION(LoadPropertyWithInterceptor); |
770 DECLARE_RUNTIME_FUNCTION(LoadElementWithInterceptor); | 772 DECLARE_RUNTIME_FUNCTION(LoadElementWithInterceptor); |
771 DECLARE_RUNTIME_FUNCTION(StorePropertyWithInterceptor); | 773 DECLARE_RUNTIME_FUNCTION(StorePropertyWithInterceptor); |
772 } | 774 } |
773 } // namespace v8::internal | 775 } // namespace v8::internal |
774 | 776 |
775 #endif // V8_IC_H_ | 777 #endif // V8_IC_H_ |
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