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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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/compiler/js-native-context-specialization.h" | 5 #include "src/compiler/js-native-context-specialization.h" |
6 | 6 |
7 #include "src/accessors.h" | 7 #include "src/accessors.h" |
8 #include "src/code-factory.h" | 8 #include "src/code-factory.h" |
9 #include "src/compilation-dependencies.h" | 9 #include "src/compilation-dependencies.h" |
10 #include "src/compiler/access-builder.h" | 10 #include "src/compiler/access-builder.h" |
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1874 | 1874 |
1875 DCHECK_EQ(MONOMORPHIC, nexus.ic_state()); | 1875 DCHECK_EQ(MONOMORPHIC, nexus.ic_state()); |
1876 | 1876 |
1877 Map* map = nexus.FindFirstMap(); | 1877 Map* map = nexus.FindFirstMap(); |
1878 if (map == nullptr) { | 1878 if (map == nullptr) { |
1879 // Maps are weakly held in the type feedback vector, we may not have one. | 1879 // Maps are weakly held in the type feedback vector, we may not have one. |
1880 return NoChange(); | 1880 return NoChange(); |
1881 } | 1881 } |
1882 | 1882 |
1883 Handle<Map> receiver_map(map, isolate()); | 1883 Handle<Map> receiver_map(map, isolate()); |
| 1884 if (!Map::TryUpdate(receiver_map).ToHandle(&receiver_map)) return NoChange(); |
| 1885 |
1884 Handle<Name> cached_name = | 1886 Handle<Name> cached_name = |
1885 handle(Name::cast(nexus.GetFeedbackExtra()), isolate()); | 1887 handle(Name::cast(nexus.GetFeedbackExtra()), isolate()); |
1886 | 1888 |
1887 PropertyAccessInfo access_info; | 1889 PropertyAccessInfo access_info; |
1888 AccessInfoFactory access_info_factory(dependencies(), native_context(), | 1890 AccessInfoFactory access_info_factory(dependencies(), native_context(), |
1889 graph()->zone()); | 1891 graph()->zone()); |
1890 if (!access_info_factory.ComputePropertyAccessInfo( | 1892 if (!access_info_factory.ComputePropertyAccessInfo( |
1891 receiver_map, cached_name, AccessMode::kStoreInLiteral, | 1893 receiver_map, cached_name, AccessMode::kStoreInLiteral, |
1892 &access_info)) { | 1894 &access_info)) { |
1893 return NoChange(); | 1895 return NoChange(); |
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2612 return jsgraph()->javascript(); | 2614 return jsgraph()->javascript(); |
2613 } | 2615 } |
2614 | 2616 |
2615 SimplifiedOperatorBuilder* JSNativeContextSpecialization::simplified() const { | 2617 SimplifiedOperatorBuilder* JSNativeContextSpecialization::simplified() const { |
2616 return jsgraph()->simplified(); | 2618 return jsgraph()->simplified(); |
2617 } | 2619 } |
2618 | 2620 |
2619 } // namespace compiler | 2621 } // namespace compiler |
2620 } // namespace internal | 2622 } // namespace internal |
2621 } // namespace v8 | 2623 } // namespace v8 |
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