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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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