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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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| 75 bool TypeFeedbackOracle::LoadIsUninitialized(TypeFeedbackId id) { | 75 bool TypeFeedbackOracle::LoadIsUninitialized(TypeFeedbackId id) { |
| 76 Handle<Object> maybe_code = GetInfo(id); | 76 Handle<Object> maybe_code = GetInfo(id); |
| 77 if (maybe_code->IsCode()) { | 77 if (maybe_code->IsCode()) { |
| 78 Handle<Code> code = Handle<Code>::cast(maybe_code); | 78 Handle<Code> code = Handle<Code>::cast(maybe_code); |
| 79 return code->is_inline_cache_stub() && code->ic_state() == UNINITIALIZED; | 79 return code->is_inline_cache_stub() && code->ic_state() == UNINITIALIZED; |
| 80 } | 80 } |
| 81 return false; | 81 return false; |
| 82 } | 82 } |
| 83 | 83 |
| 84 | 84 |
| 85 bool TypeFeedbackOracle::LoadIsPreMonomorphic(TypeFeedbackId id) { | |
| 86 Handle<Object> maybe_code = GetInfo(id); | |
| 87 if (maybe_code->IsCode()) { | |
| 88 Handle<Code> code = Handle<Code>::cast(maybe_code); | |
| 89 return code->is_inline_cache_stub() && code->ic_state() == PREMONOMORPHIC; | |
| 90 } | |
| 91 return false; | |
| 92 } | |
| 93 | |
| 94 | |
| 95 bool TypeFeedbackOracle::StoreIsUninitialized(TypeFeedbackId ast_id) { | 85 bool TypeFeedbackOracle::StoreIsUninitialized(TypeFeedbackId ast_id) { |
| 96 Handle<Object> maybe_code = GetInfo(ast_id); | 86 Handle<Object> maybe_code = GetInfo(ast_id); |
| 97 if (!maybe_code->IsCode()) return false; | 87 if (!maybe_code->IsCode()) return false; |
| 98 Handle<Code> code = Handle<Code>::cast(maybe_code); | 88 Handle<Code> code = Handle<Code>::cast(maybe_code); |
| 99 return code->ic_state() == UNINITIALIZED; | 89 return code->ic_state() == UNINITIALIZED; |
| 100 } | 90 } |
| 101 | 91 |
| 102 | 92 |
| 103 bool TypeFeedbackOracle::StoreIsPreMonomorphic(TypeFeedbackId ast_id) { | |
| 104 Handle<Object> maybe_code = GetInfo(ast_id); | |
| 105 if (maybe_code->IsCode()) { | |
| 106 Handle<Code> code = Handle<Code>::cast(maybe_code); | |
| 107 return code->ic_state() == PREMONOMORPHIC; | |
| 108 } | |
| 109 return false; | |
| 110 } | |
| 111 | |
| 112 | |
| 113 bool TypeFeedbackOracle::StoreIsKeyedPolymorphic(TypeFeedbackId ast_id) { | 93 bool TypeFeedbackOracle::StoreIsKeyedPolymorphic(TypeFeedbackId ast_id) { |
| 114 Handle<Object> maybe_code = GetInfo(ast_id); | 94 Handle<Object> maybe_code = GetInfo(ast_id); |
| 115 if (maybe_code->IsCode()) { | 95 if (maybe_code->IsCode()) { |
| 116 Handle<Code> code = Handle<Code>::cast(maybe_code); | 96 Handle<Code> code = Handle<Code>::cast(maybe_code); |
| 117 return code->is_keyed_store_stub() && | 97 return code->is_keyed_store_stub() && |
| 118 code->ic_state() == POLYMORPHIC; | 98 code->ic_state() == POLYMORPHIC; |
| 119 } | 99 } |
| 120 return false; | 100 return false; |
| 121 } | 101 } |
| 122 | 102 |
| 123 | 103 |
| 124 bool TypeFeedbackOracle::CallIsMonomorphic(TypeFeedbackId id) { | 104 bool TypeFeedbackOracle::CallIsMonomorphic(TypeFeedbackId id) { |
| 125 Handle<Object> value = GetInfo(id); | 105 Handle<Object> value = GetInfo(id); |
| 126 return value->IsAllocationSite() || value->IsJSFunction() || value->IsSmi() || | 106 return value->IsAllocationSite() || value->IsJSFunction(); |
| 127 (value->IsCode() && Handle<Code>::cast(value)->ic_state() == MONOMORPHIC); | |
| 128 } | 107 } |
| 129 | 108 |
| 130 | 109 |
| 131 bool TypeFeedbackOracle::KeyedArrayCallIsHoley(TypeFeedbackId id) { | |
| 132 Handle<Object> value = GetInfo(id); | |
| 133 Handle<Code> code = Handle<Code>::cast(value); | |
| 134 return KeyedArrayCallStub::IsHoley(code); | |
| 135 } | |
| 136 | |
| 137 | |
| 138 bool TypeFeedbackOracle::CallNewIsMonomorphic(TypeFeedbackId id) { | 110 bool TypeFeedbackOracle::CallNewIsMonomorphic(TypeFeedbackId id) { |
| 139 Handle<Object> info = GetInfo(id); | 111 Handle<Object> info = GetInfo(id); |
| 140 return info->IsAllocationSite() || info->IsJSFunction(); | 112 return info->IsAllocationSite() || info->IsJSFunction(); |
| 141 } | 113 } |
| 142 | 114 |
| 143 | 115 |
| 144 byte TypeFeedbackOracle::ForInType(TypeFeedbackId id) { | 116 byte TypeFeedbackOracle::ForInType(TypeFeedbackId id) { |
| 145 Handle<Object> value = GetInfo(id); | 117 Handle<Object> value = GetInfo(id); |
| 146 return value->IsSmi() && | 118 return value->IsSmi() && |
| 147 Smi::cast(*value)->value() == TypeFeedbackCells::kForInFastCaseMarker | 119 Smi::cast(*value)->value() == TypeFeedbackCells::kForInFastCaseMarker |
| 148 ? ForInStatement::FAST_FOR_IN : ForInStatement::SLOW_FOR_IN; | 120 ? ForInStatement::FAST_FOR_IN : ForInStatement::SLOW_FOR_IN; |
| 149 } | 121 } |
| 150 | 122 |
| 151 | 123 |
| 152 KeyedAccessStoreMode TypeFeedbackOracle::GetStoreMode( | 124 KeyedAccessStoreMode TypeFeedbackOracle::GetStoreMode( |
| 153 TypeFeedbackId ast_id) { | 125 TypeFeedbackId ast_id) { |
| 154 Handle<Object> maybe_code = GetInfo(ast_id); | 126 Handle<Object> maybe_code = GetInfo(ast_id); |
| 155 if (maybe_code->IsCode()) { | 127 if (maybe_code->IsCode()) { |
| 156 Handle<Code> code = Handle<Code>::cast(maybe_code); | 128 Handle<Code> code = Handle<Code>::cast(maybe_code); |
| 157 if (code->kind() == Code::KEYED_STORE_IC) { | 129 if (code->kind() == Code::KEYED_STORE_IC) { |
| 158 return KeyedStoreIC::GetKeyedAccessStoreMode(code->extra_ic_state()); | 130 return KeyedStoreIC::GetKeyedAccessStoreMode(code->extra_ic_state()); |
| 159 } | 131 } |
| 160 } | 132 } |
| 161 return STANDARD_STORE; | 133 return STANDARD_STORE; |
| 162 } | 134 } |
| 163 | 135 |
| 164 | 136 |
| 165 void TypeFeedbackOracle::CallReceiverTypes(TypeFeedbackId id, | |
| 166 Handle<String> name, | |
| 167 int arity, | |
| 168 SmallMapList* types) { | |
| 169 Code::Flags flags = Code::ComputeMonomorphicFlags( | |
| 170 Code::CALL_IC, kNoExtraICState, OWN_MAP, Code::NORMAL, arity); | |
| 171 CollectReceiverTypes(id, name, flags, types); | |
| 172 } | |
| 173 | |
| 174 | |
| 175 CheckType TypeFeedbackOracle::GetCallCheckType(TypeFeedbackId id) { | |
| 176 Handle<Object> value = GetInfo(id); | |
| 177 if (!value->IsSmi()) return RECEIVER_MAP_CHECK; | |
| 178 CheckType check = static_cast<CheckType>(Smi::cast(*value)->value()); | |
| 179 ASSERT(check != RECEIVER_MAP_CHECK); | |
| 180 return check; | |
| 181 } | |
| 182 | |
| 183 | |
| 184 Handle<JSFunction> TypeFeedbackOracle::GetCallTarget(TypeFeedbackId id) { | 137 Handle<JSFunction> TypeFeedbackOracle::GetCallTarget(TypeFeedbackId id) { |
| 185 Handle<Object> info = GetInfo(id); | 138 Handle<Object> info = GetInfo(id); |
| 186 if (info->IsAllocationSite()) { | 139 if (info->IsAllocationSite()) { |
| 187 return Handle<JSFunction>(isolate()->global_context()->array_function()); | 140 return Handle<JSFunction>(isolate()->global_context()->array_function()); |
| 188 } else { | 141 } else { |
| 189 return Handle<JSFunction>::cast(info); | 142 return Handle<JSFunction>::cast(info); |
| 190 } | 143 } |
| 191 } | 144 } |
| 192 | 145 |
| 193 | 146 |
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| 497 | 450 |
| 498 | 451 |
| 499 void TypeFeedbackOracle::ProcessRelocInfos(ZoneList<RelocInfo>* infos) { | 452 void TypeFeedbackOracle::ProcessRelocInfos(ZoneList<RelocInfo>* infos) { |
| 500 for (int i = 0; i < infos->length(); i++) { | 453 for (int i = 0; i < infos->length(); i++) { |
| 501 RelocInfo reloc_entry = (*infos)[i]; | 454 RelocInfo reloc_entry = (*infos)[i]; |
| 502 Address target_address = reloc_entry.target_address(); | 455 Address target_address = reloc_entry.target_address(); |
| 503 TypeFeedbackId ast_id = | 456 TypeFeedbackId ast_id = |
| 504 TypeFeedbackId(static_cast<unsigned>((*infos)[i].data())); | 457 TypeFeedbackId(static_cast<unsigned>((*infos)[i].data())); |
| 505 Code* target = Code::GetCodeFromTargetAddress(target_address); | 458 Code* target = Code::GetCodeFromTargetAddress(target_address); |
| 506 switch (target->kind()) { | 459 switch (target->kind()) { |
| 507 case Code::CALL_IC: | |
| 508 if (target->ic_state() == MONOMORPHIC && | |
| 509 target->check_type() != RECEIVER_MAP_CHECK) { | |
| 510 SetInfo(ast_id, Smi::FromInt(target->check_type())); | |
| 511 break; | |
| 512 } | |
| 513 case Code::LOAD_IC: | 460 case Code::LOAD_IC: |
| 514 case Code::STORE_IC: | 461 case Code::STORE_IC: |
| 515 case Code::KEYED_CALL_IC: | |
| 516 case Code::KEYED_LOAD_IC: | 462 case Code::KEYED_LOAD_IC: |
| 517 case Code::KEYED_STORE_IC: | 463 case Code::KEYED_STORE_IC: |
| 518 case Code::BINARY_OP_IC: | 464 case Code::BINARY_OP_IC: |
| 519 case Code::COMPARE_IC: | 465 case Code::COMPARE_IC: |
| 520 case Code::TO_BOOLEAN_IC: | 466 case Code::TO_BOOLEAN_IC: |
| 521 case Code::COMPARE_NIL_IC: | 467 case Code::COMPARE_NIL_IC: |
| 522 SetInfo(ast_id, target); | 468 SetInfo(ast_id, target); |
| 523 break; | 469 break; |
| 524 | 470 |
| 525 default: | 471 default: |
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| 557 #ifdef DEBUG | 503 #ifdef DEBUG |
| 558 Object* result = NULL; | 504 Object* result = NULL; |
| 559 // Dictionary has been allocated with sufficient size for all elements. | 505 // Dictionary has been allocated with sufficient size for all elements. |
| 560 ASSERT(maybe_result->ToObject(&result)); | 506 ASSERT(maybe_result->ToObject(&result)); |
| 561 ASSERT(*dictionary_ == result); | 507 ASSERT(*dictionary_ == result); |
| 562 #endif | 508 #endif |
| 563 } | 509 } |
| 564 | 510 |
| 565 | 511 |
| 566 } } // namespace v8::internal | 512 } } // namespace v8::internal |
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