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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 #include "src/ic/ic.h" | 5 #include "src/ic/ic.h" |
6 | 6 |
7 #include "src/accessors.h" | 7 #include "src/accessors.h" |
8 #include "src/api.h" | 8 #include "src/api.h" |
9 #include "src/api-arguments.h" | 9 #include "src/api-arguments.h" |
10 #include "src/arguments.h" | 10 #include "src/arguments.h" |
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755 } | 755 } |
756 } | 756 } |
757 | 757 |
758 | 758 |
759 bool IC::IsTransitionOfMonomorphicTarget(Map* source_map, Map* target_map) { | 759 bool IC::IsTransitionOfMonomorphicTarget(Map* source_map, Map* target_map) { |
760 if (source_map == NULL) return true; | 760 if (source_map == NULL) return true; |
761 if (target_map == NULL) return false; | 761 if (target_map == NULL) return false; |
762 ElementsKind target_elements_kind = target_map->elements_kind(); | 762 ElementsKind target_elements_kind = target_map->elements_kind(); |
763 bool more_general_transition = IsMoreGeneralElementsKindTransition( | 763 bool more_general_transition = IsMoreGeneralElementsKindTransition( |
764 source_map->elements_kind(), target_elements_kind); | 764 source_map->elements_kind(), target_elements_kind); |
765 Map* transitioned_map = | 765 Map* transitioned_map = nullptr; |
766 more_general_transition | 766 if (more_general_transition) { |
767 ? source_map->LookupElementsTransitionMap(target_elements_kind) | 767 MapHandleList map_list; |
768 : NULL; | 768 map_list.Add(handle(target_map)); |
769 | 769 transitioned_map = source_map->FindElementsKindTransitionedMap(&map_list); |
| 770 } |
770 return transitioned_map == target_map; | 771 return transitioned_map == target_map; |
771 } | 772 } |
772 | 773 |
773 | 774 |
774 void IC::PatchCache(Handle<Name> name, Handle<Code> code) { | 775 void IC::PatchCache(Handle<Name> name, Handle<Code> code) { |
775 switch (state()) { | 776 switch (state()) { |
776 case UNINITIALIZED: | 777 case UNINITIALIZED: |
777 case PREMONOMORPHIC: | 778 case PREMONOMORPHIC: |
778 UpdateMonomorphicIC(code, name); | 779 UpdateMonomorphicIC(code, name); |
779 break; | 780 break; |
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2994 KeyedLoadICNexus nexus(vector, vector_slot); | 2995 KeyedLoadICNexus nexus(vector, vector_slot); |
2995 KeyedLoadIC ic(IC::EXTRA_CALL_FRAME, isolate, &nexus); | 2996 KeyedLoadIC ic(IC::EXTRA_CALL_FRAME, isolate, &nexus); |
2996 ic.UpdateState(receiver, key); | 2997 ic.UpdateState(receiver, key); |
2997 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, ic.Load(receiver, key)); | 2998 ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, ic.Load(receiver, key)); |
2998 } | 2999 } |
2999 | 3000 |
3000 return *result; | 3001 return *result; |
3001 } | 3002 } |
3002 } // namespace internal | 3003 } // namespace internal |
3003 } // namespace v8 | 3004 } // namespace v8 |
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