| Index: src/hydrogen.cc | 
| diff --git a/src/hydrogen.cc b/src/hydrogen.cc | 
| index 1c1375b06b8d84b4f55b6b92169ec3112e265e97..503ff9a3ba0c6a4a082c987002cac3e63f372f45 100644 | 
| --- a/src/hydrogen.cc | 
| +++ b/src/hydrogen.cc | 
| @@ -5266,6 +5266,7 @@ HOptimizedGraphBuilder::LookupGlobalProperty(Variable* var, LookupIterator* it, | 
| case LookupIterator::ACCESSOR: | 
| case LookupIterator::ACCESS_CHECK: | 
| case LookupIterator::INTERCEPTOR: | 
| +    case LookupIterator::INTEGER_INDEXED_EXOTIC: | 
| case LookupIterator::NOT_FOUND: | 
| return kUseGeneric; | 
| case LookupIterator::DATA: | 
| @@ -6071,6 +6072,12 @@ bool HOptimizedGraphBuilder::PropertyAccessInfo::LookupInPrototypes() { | 
| } | 
|  | 
|  | 
| +bool HOptimizedGraphBuilder::PropertyAccessInfo::IsIntegerIndexedExotic() { | 
| +  InstanceType instance_type = map_->instance_type(); | 
| +  return instance_type == JS_TYPED_ARRAY_TYPE && IsNonArrayIndexInteger(*name_); | 
| +} | 
| + | 
| + | 
| bool HOptimizedGraphBuilder::PropertyAccessInfo::CanAccessMonomorphic() { | 
| if (!CanInlinePropertyAccess(map_)) return false; | 
| if (IsJSObjectFieldAccessor()) return IsLoad(); | 
| @@ -6080,6 +6087,7 @@ bool HOptimizedGraphBuilder::PropertyAccessInfo::CanAccessMonomorphic() { | 
| } | 
| if (!LookupDescriptor()) return false; | 
| if (IsFound()) return IsLoad() || !IsReadOnly(); | 
| +  if (IsIntegerIndexedExotic()) return false; | 
| if (!LookupInPrototypes()) return false; | 
| if (IsLoad()) return true; | 
|  | 
|  |