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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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51 : TypeInfo::Double(); | 51 : TypeInfo::Double(); |
52 } else if (value->IsString()) { | 52 } else if (value->IsString()) { |
53 info = TypeInfo::String(); | 53 info = TypeInfo::String(); |
54 } else { | 54 } else { |
55 info = TypeInfo::Unknown(); | 55 info = TypeInfo::Unknown(); |
56 } | 56 } |
57 return info; | 57 return info; |
58 } | 58 } |
59 | 59 |
60 | 60 |
61 STATIC_ASSERT(DEFAULT_STRING_STUB == Code::kNoExtraICState); | |
62 | |
63 | |
64 TypeFeedbackOracle::TypeFeedbackOracle(Handle<Code> code, | 61 TypeFeedbackOracle::TypeFeedbackOracle(Handle<Code> code, |
65 Handle<Context> global_context) { | 62 Handle<Context> global_context) { |
66 global_context_ = global_context; | 63 global_context_ = global_context; |
67 PopulateMap(code); | 64 PopulateMap(code); |
68 ASSERT(reinterpret_cast<Address>(*dictionary_.location()) != kHandleZapValue); | 65 ASSERT(reinterpret_cast<Address>(*dictionary_.location()) != kHandleZapValue); |
69 } | 66 } |
70 | 67 |
71 | 68 |
72 Handle<Object> TypeFeedbackOracle::GetInfo(unsigned ast_id) { | 69 Handle<Object> TypeFeedbackOracle::GetInfo(unsigned ast_id) { |
73 int entry = dictionary_->FindEntry(ast_id); | 70 int entry = dictionary_->FindEntry(ast_id); |
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140 | 137 |
141 | 138 |
142 ZoneMapList* TypeFeedbackOracle::StoreReceiverTypes(Assignment* expr, | 139 ZoneMapList* TypeFeedbackOracle::StoreReceiverTypes(Assignment* expr, |
143 Handle<String> name) { | 140 Handle<String> name) { |
144 Code::Flags flags = Code::ComputeMonomorphicFlags(Code::STORE_IC, NORMAL); | 141 Code::Flags flags = Code::ComputeMonomorphicFlags(Code::STORE_IC, NORMAL); |
145 return CollectReceiverTypes(expr->id(), name, flags); | 142 return CollectReceiverTypes(expr->id(), name, flags); |
146 } | 143 } |
147 | 144 |
148 | 145 |
149 ZoneMapList* TypeFeedbackOracle::CallReceiverTypes(Call* expr, | 146 ZoneMapList* TypeFeedbackOracle::CallReceiverTypes(Call* expr, |
150 Handle<String> name) { | 147 Handle<String> name, |
| 148 CallKind call_kind) { |
151 int arity = expr->arguments()->length(); | 149 int arity = expr->arguments()->length(); |
152 // Note: these flags won't let us get maps from stubs with | 150 |
153 // non-default extra ic state in the megamorphic case. In the more | 151 // Note: Currently we do not take string extra ic data into account |
154 // important monomorphic case the map is obtained directly, so it's | 152 // here. |
155 // not a problem until we decide to emit more polymorphic code. | 153 Code::ExtraICState extra_ic_state = |
| 154 CallIC::Contextual::encode(call_kind == CALL_AS_FUNCTION); |
| 155 |
156 Code::Flags flags = Code::ComputeMonomorphicFlags(Code::CALL_IC, | 156 Code::Flags flags = Code::ComputeMonomorphicFlags(Code::CALL_IC, |
157 NORMAL, | 157 NORMAL, |
158 Code::kNoExtraICState, | 158 extra_ic_state, |
159 OWN_MAP, | 159 OWN_MAP, |
160 NOT_IN_LOOP, | 160 NOT_IN_LOOP, |
161 arity); | 161 arity); |
162 return CollectReceiverTypes(expr->id(), name, flags); | 162 return CollectReceiverTypes(expr->id(), name, flags); |
163 } | 163 } |
164 | 164 |
165 | 165 |
166 CheckType TypeFeedbackOracle::GetCallCheckType(Call* expr) { | 166 CheckType TypeFeedbackOracle::GetCallCheckType(Call* expr) { |
167 Handle<Object> value = GetInfo(expr->id()); | 167 Handle<Object> value = GetInfo(expr->id()); |
168 if (!value->IsSmi()) return RECEIVER_MAP_CHECK; | 168 if (!value->IsSmi()) return RECEIVER_MAP_CHECK; |
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498 static_cast<int>(info->pc() - code->instruction_start())); | 498 static_cast<int>(info->pc() - code->instruction_start())); |
499 ASSERT(ast_ids->length() == 0 || | 499 ASSERT(ast_ids->length() == 0 || |
500 (*ast_ids)[ast_ids->length()-1] != | 500 (*ast_ids)[ast_ids->length()-1] != |
501 static_cast<unsigned>(info->data())); | 501 static_cast<unsigned>(info->data())); |
502 ast_ids->Add(static_cast<unsigned>(info->data())); | 502 ast_ids->Add(static_cast<unsigned>(info->data())); |
503 } | 503 } |
504 } | 504 } |
505 } | 505 } |
506 | 506 |
507 } } // namespace v8::internal | 507 } } // namespace v8::internal |
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