| Index: src/hydrogen.cc
|
| diff --git a/src/hydrogen.cc b/src/hydrogen.cc
|
| index ee9f8e41676b054dc34a7797677e68f3a940e6ef..cfdc0cfba5c780084bbbfb4417dad5a95dd5408f 100644
|
| --- a/src/hydrogen.cc
|
| +++ b/src/hydrogen.cc
|
| @@ -7789,6 +7789,7 @@ bool HOptimizedGraphBuilder::TryInlineBuiltinMethodCall(
|
| ElementsKind elements_kind = receiver_map->elements_kind();
|
| if (!IsFastElementsKind(elements_kind)) return false;
|
| if (receiver_map->is_observed()) return false;
|
| + if (JSArray::IsReadOnlyLengthDescriptor(receiver_map)) return false;
|
| ASSERT(receiver_map->is_extensible());
|
|
|
| // If there may be elements accessors in the prototype chain, the fast
|
|
|