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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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164 InlineCacheState state = code->ic_state(); | 164 InlineCacheState state = code->ic_state(); |
165 return state == UNINITIALIZED || state == PREMONOMORPHIC; | 165 return state == UNINITIALIZED || state == PREMONOMORPHIC; |
166 } | 166 } |
167 | 167 |
168 // Utility functions to convert maps to types and back. There are two special | 168 // Utility functions to convert maps to types and back. There are two special |
169 // cases: | 169 // cases: |
170 // - The heap_number_map is used as a marker which includes heap numbers as | 170 // - The heap_number_map is used as a marker which includes heap numbers as |
171 // well as smis. | 171 // well as smis. |
172 // - The oddball map is only used for booleans. | 172 // - The oddball map is only used for booleans. |
173 static Handle<Map> TypeToMap(Type* type, Isolate* isolate); | 173 static Handle<Map> TypeToMap(Type* type, Isolate* isolate); |
174 static Type* MapToType(Handle<Map> type); | 174 static Handle<Type> MapToType(Handle<Map> type); |
175 static Handle<Type> CurrentTypeOf(Handle<Object> object, Isolate* isolate); | 175 static Handle<Type> CurrentTypeOf(Handle<Object> object, Isolate* isolate); |
176 | 176 |
177 ContextualMode contextual_mode() const { | 177 ContextualMode contextual_mode() const { |
178 return Contextual::decode(extra_ic_state()); | 178 return Contextual::decode(extra_ic_state()); |
179 } | 179 } |
180 | 180 |
181 bool IsContextual() const { return contextual_mode() == CONTEXTUAL; } | 181 bool IsContextual() const { return contextual_mode() == CONTEXTUAL; } |
182 | 182 |
183 protected: | 183 protected: |
184 // Get the call-site target; used for determining the state. | 184 // Get the call-site target; used for determining the state. |
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236 Handle<Code> handler, | 236 Handle<Code> handler, |
237 Handle<String> name); | 237 Handle<String> name); |
238 | 238 |
239 bool UpdatePolymorphicIC(Handle<Type> type, | 239 bool UpdatePolymorphicIC(Handle<Type> type, |
240 Handle<String> name, | 240 Handle<String> name, |
241 Handle<Code> code); | 241 Handle<Code> code); |
242 | 242 |
243 virtual void UpdateMegamorphicCache(Type* type, Name* name, Code* code); | 243 virtual void UpdateMegamorphicCache(Type* type, Name* name, Code* code); |
244 | 244 |
245 void CopyICToMegamorphicCache(Handle<String> name); | 245 void CopyICToMegamorphicCache(Handle<String> name); |
246 bool IsTransitionOfMonomorphicTarget(Type* type); | 246 bool IsTransitionOfMonomorphicTarget(Handle<Type> type); |
247 void PatchCache(Handle<Type> type, | 247 void PatchCache(Handle<Type> type, |
248 Handle<String> name, | 248 Handle<String> name, |
249 Handle<Code> code); | 249 Handle<Code> code); |
250 virtual Code::Kind kind() const { | 250 virtual Code::Kind kind() const { |
251 UNREACHABLE(); | 251 UNREACHABLE(); |
252 return Code::STUB; | 252 return Code::STUB; |
253 } | 253 } |
254 virtual Handle<Code> slow_stub() const { | 254 virtual Handle<Code> slow_stub() const { |
255 UNREACHABLE(); | 255 UNREACHABLE(); |
256 return Handle<Code>::null(); | 256 return Handle<Code>::null(); |
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1025 DECLARE_RUNTIME_FUNCTION(MaybeObject*, ElementsTransitionAndStoreIC_Miss); | 1025 DECLARE_RUNTIME_FUNCTION(MaybeObject*, ElementsTransitionAndStoreIC_Miss); |
1026 DECLARE_RUNTIME_FUNCTION(MaybeObject*, BinaryOpIC_Miss); | 1026 DECLARE_RUNTIME_FUNCTION(MaybeObject*, BinaryOpIC_Miss); |
1027 DECLARE_RUNTIME_FUNCTION(MaybeObject*, BinaryOpIC_MissWithAllocationSite); | 1027 DECLARE_RUNTIME_FUNCTION(MaybeObject*, BinaryOpIC_MissWithAllocationSite); |
1028 DECLARE_RUNTIME_FUNCTION(MaybeObject*, CompareNilIC_Miss); | 1028 DECLARE_RUNTIME_FUNCTION(MaybeObject*, CompareNilIC_Miss); |
1029 DECLARE_RUNTIME_FUNCTION(MaybeObject*, ToBooleanIC_Miss); | 1029 DECLARE_RUNTIME_FUNCTION(MaybeObject*, ToBooleanIC_Miss); |
1030 | 1030 |
1031 | 1031 |
1032 } } // namespace v8::internal | 1032 } } // namespace v8::internal |
1033 | 1033 |
1034 #endif // V8_IC_H_ | 1034 #endif // V8_IC_H_ |
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