handler-compiler.cc revision 014dc512cdd3e367bee49a713fdc5ed92584a3e5
1b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Copyright 2014 the V8 project authors. All rights reserved. 2b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// found in the LICENSE file. 4b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/ic/handler-compiler.h" 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/ic/call-optimization.h" 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/ic/ic.h" 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/ic/ic-inl.h" 10014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/isolate-inl.h" 11014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/profiler/cpu-profiler.h" 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 13b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochnamespace v8 { 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochnamespace internal { 15b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 16b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 17b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> PropertyHandlerCompiler::Find(Handle<Name> name, 18b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> stub_holder, 19b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code::Kind kind, 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CacheHolderFlag cache_holder, 21b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code::StubType type) { 22b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code::Flags flags = Code::ComputeHandlerFlags(kind, type, cache_holder); 23b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object* probe = stub_holder->FindInCodeCache(*name, flags); 24b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (probe->IsCode()) return handle(Code::cast(probe)); 25b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Handle<Code>::null(); 26b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 27b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 28b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 29b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedLoadHandlerCompiler::ComputeLoadNonexistent( 30014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Name> name, Handle<Map> receiver_map) { 31b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Isolate* isolate = name->GetIsolate(); 32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (receiver_map->prototype()->IsNull()) { 33b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(jkummerow/verwaest): If there is no prototype and the property 34b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // is nonexistent, introduce a builtin to handle this (fast properties 35b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // -> return undefined, dictionary properties -> do negative lookup). 36b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Handle<Code>(); 37b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 38b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CacheHolderFlag flag; 39b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> stub_holder_map = 40014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch IC::GetHandlerCacheHolder(receiver_map, false, isolate, &flag); 41b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 42b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If no dictionary mode objects are present in the prototype chain, the load 43b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // nonexistent IC stub can be shared for all names for a given map and we use 44b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the empty string for the map cache in that case. If there are dictionary 45b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // mode objects involved, we need to do negative lookups in the stub and 46b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // therefore the stub will be specific to the name. 47b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Name> cache_name = 48b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch receiver_map->is_dictionary_map() 49b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? name 50b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : Handle<Name>::cast(isolate->factory()->nonexistent_symbol()); 51b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> current_map = stub_holder_map; 52b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSObject> last(JSObject::cast(receiver_map->prototype())); 53b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (true) { 54b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (current_map->is_dictionary_map()) cache_name = name; 55b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (current_map->prototype()->IsNull()) break; 56014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (name->IsPrivate()) { 57014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // TODO(verwaest): Use nonexistent_private_symbol. 58014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch cache_name = name; 59014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch JSReceiver* prototype = JSReceiver::cast(current_map->prototype()); 60014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!prototype->map()->is_hidden_prototype() && 61014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !prototype->map()->IsJSGlobalObjectMap()) { 62014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch break; 63014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 64014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 65014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 66b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch last = handle(JSObject::cast(current_map->prototype())); 67b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_map = handle(last->map()); 68b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 69b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compile the stub that is either shared for all names or 70b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // name specific if there are global objects involved. 71b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> handler = PropertyHandlerCompiler::Find( 72b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cache_name, stub_holder_map, Code::LOAD_IC, flag, Code::FAST); 73b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!handler.is_null()) return handler; 74b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 75014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch NamedLoadHandlerCompiler compiler(isolate, receiver_map, last, flag); 76b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch handler = compiler.CompileLoadNonexistent(cache_name); 77b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Map::UpdateCodeCache(stub_holder_map, cache_name, handler); 78b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return handler; 79b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 80b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 81b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 82b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> PropertyHandlerCompiler::GetCode(Code::Kind kind, 83b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code::StubType type, 84b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Name> name) { 85b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code::Flags flags = Code::ComputeHandlerFlags(kind, type, cache_holder()); 86b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> code = GetCodeWithFlags(flags, name); 87014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PROFILE(isolate(), CodeCreateEvent(Logger::HANDLER_TAG, *code, *name)); 88014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#ifdef DEBUG 89014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch code->VerifyEmbeddedObjects(); 90014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#endif 91b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return code; 92b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 93b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 94b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 95b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define __ ACCESS_MASM(masm()) 96b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 97b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 98b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRegister NamedLoadHandlerCompiler::FrontendHeader(Register object_reg, 99b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Name> name, 100014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Label* miss, 101014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ReturnHolder return_what) { 102014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PrototypeCheckType check_type = SKIP_RECEIVER; 103014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int function_index = map()->IsPrimitiveMap() 104014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ? map()->GetConstructorFunctionIndex() 105014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : Map::kNoConstructorFunctionIndex; 106014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (function_index != Map::kNoConstructorFunctionIndex) { 107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateDirectLoadGlobalFunctionPrototype(masm(), function_index, 108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch1(), miss); 109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object* function = isolate()->native_context()->get(function_index); 110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object* prototype = JSFunction::cast(function)->instance_prototype(); 111014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Map> map(JSObject::cast(prototype)->map()); 112014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch set_map(map); 113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_reg = scratch1(); 114014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch check_type = CHECK_ALL_MAPS; 115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check that the maps starting from the prototype haven't changed. 118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return CheckPrototypes(object_reg, scratch1(), scratch2(), scratch3(), name, 119014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch miss, check_type, return_what); 120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Frontend for store uses the name register. It has to be restored before a 124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// miss. 125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRegister NamedStoreHandlerCompiler::FrontendHeader(Register object_reg, 126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Name> name, 127014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Label* miss, 128014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ReturnHolder return_what) { 129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return CheckPrototypes(object_reg, this->name(), scratch1(), scratch2(), name, 130014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch miss, SKIP_RECEIVER, return_what); 131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 134958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierRegister PropertyHandlerCompiler::Frontend(Handle<Name> name) { 135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label miss; 136958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (IC::ICUseVector(kind())) { 137958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier PushVectorAndSlot(); 138958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 139014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register reg = FrontendHeader(receiver(), name, &miss, RETURN_HOLDER); 140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FrontendFooter(name, &miss); 141958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // The footer consumes the vector and slot from the stack if miss occurs. 142958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (IC::ICUseVector(kind())) { 143958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DiscardVectorAndSlot(); 144958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return reg; 146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid PropertyHandlerCompiler::NonexistentFrontendHeader(Handle<Name> name, 150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* miss, 151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch1, 152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch2) { 153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register holder_reg; 154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> last_map; 155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (holder().is_null()) { 156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch holder_reg = receiver(); 157014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch last_map = map(); 158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If |type| has null as its prototype, |holder()| is 159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle<JSObject>::null(). 160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(last_map->prototype() == isolate()->heap()->null_value()); 161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch last_map = handle(holder()->map()); 163014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // This condition matches the branches below. 164014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bool need_holder = 165014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch last_map->is_dictionary_map() && !last_map->IsJSGlobalObjectMap(); 166014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch holder_reg = 167014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch FrontendHeader(receiver(), name, miss, 168014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch need_holder ? RETURN_HOLDER : DONT_RETURN_ANYTHING); 169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (last_map->is_dictionary_map()) { 172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (last_map->IsJSGlobalObjectMap()) { 173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSGlobalObject> global = 174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch holder().is_null() 175014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ? Handle<JSGlobalObject>::cast(isolate()->global_object()) 176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : Handle<JSGlobalObject>::cast(holder()); 177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateCheckPropertyCell(masm(), global, name, scratch1, miss); 178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!name->IsUniqueName()) { 180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(name->IsString()); 181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch name = factory()->InternalizeString(Handle<String>::cast(name)); 182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(holder().is_null() || 184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch holder()->property_dictionary()->FindEntry(name) == 185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch NameDictionary::kNotFound); 186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateDictionaryNegativeLookup(masm(), miss, holder_reg, name, scratch1, 187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch2); 188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedLoadHandlerCompiler::CompileLoadField(Handle<Name> name, 194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FieldIndex field) { 195958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Register reg = Frontend(name); 196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(receiver(), reg); 197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LoadFieldStub stub(isolate(), field); 198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateTailCall(masm(), stub.GetCode()); 199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, name); 200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedLoadHandlerCompiler::CompileLoadConstant(Handle<Name> name, 204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int constant_index) { 205958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Register reg = Frontend(name); 206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(receiver(), reg); 207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LoadConstantStub stub(isolate(), constant_index); 208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateTailCall(masm(), stub.GetCode()); 209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, name); 210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedLoadHandlerCompiler::CompileLoadNonexistent( 214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Name> name) { 215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label miss; 216958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (IC::ICUseVector(kind())) { 217958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(kind() == Code::LOAD_IC); 218958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier PushVectorAndSlot(); 219958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch NonexistentFrontendHeader(name, &miss, scratch2(), scratch3()); 221958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (IC::ICUseVector(kind())) { 222958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DiscardVectorAndSlot(); 223958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateLoadConstant(isolate()->factory()->undefined_value()); 225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FrontendFooter(name, &miss); 226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, name); 227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedLoadHandlerCompiler::CompileLoadCallback( 231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Name> name, Handle<ExecutableAccessorInfo> callback) { 232958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Register reg = Frontend(name); 233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateLoadCallback(reg, callback); 234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, name); 235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedLoadHandlerCompiler::CompileLoadCallback( 239014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Name> name, const CallOptimization& call_optimization, 240014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int accessor_index) { 241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(call_optimization.is_simple_api_call()); 242014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register holder = Frontend(name); 243014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GenerateApiAccessorCall(masm(), call_optimization, map(), receiver(), 244014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch scratch2(), false, no_reg, holder, accessor_index); 245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, name); 246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 249958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Berniervoid NamedLoadHandlerCompiler::InterceptorVectorSlotPush(Register holder_reg) { 250958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (IC::ICUseVector(kind())) { 251958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (holder_reg.is(receiver())) { 252958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier PushVectorAndSlot(); 253958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else { 254958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(holder_reg.is(scratch1())); 255958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier PushVectorAndSlot(scratch2(), scratch3()); 256958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 257958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 258958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier} 259958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 260958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 261958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Berniervoid NamedLoadHandlerCompiler::InterceptorVectorSlotPop(Register holder_reg, 262958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier PopMode mode) { 263958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (IC::ICUseVector(kind())) { 264958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (mode == DISCARD) { 265958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DiscardVectorAndSlot(); 266958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else { 267958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (holder_reg.is(receiver())) { 268958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier PopVectorAndSlot(); 269958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else { 270958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(holder_reg.is(scratch1())); 271958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier PopVectorAndSlot(scratch2(), scratch3()); 272958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 273958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 274958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 275958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier} 276958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 277958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedLoadHandlerCompiler::CompileLoadInterceptor( 279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LookupIterator* it) { 280014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // So far the most popular follow ups for interceptor loads are DATA and 281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // ExecutableAccessorInfo, so inline only them. Other cases may be added 282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // later. 283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool inline_followup = false; 284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (it->state()) { 285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::TRANSITION: 286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::ACCESS_CHECK: 288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::INTERCEPTOR: 289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::JSPROXY: 290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::NOT_FOUND: 291014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case LookupIterator::INTEGER_INDEXED_EXOTIC: 292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::DATA: 294958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier inline_followup = 295014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch it->property_details().type() == DATA && !it->is_dictionary_holder(); 296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::ACCESSOR: { 298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> accessors = it->GetAccessors(); 299014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (accessors->IsExecutableAccessorInfo()) { 300014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<ExecutableAccessorInfo> info = 301014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<ExecutableAccessorInfo>::cast(accessors); 302014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch inline_followup = info->getter() != NULL && 303014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ExecutableAccessorInfo::IsCompatibleReceiverMap( 304014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate(), info, map()); 305014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (accessors->IsAccessorPair()) { 306014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<JSObject> property_holder(it->GetHolder<JSObject>()); 307014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Object> getter(Handle<AccessorPair>::cast(accessors)->getter(), 308014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate()); 309014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!getter->IsJSFunction()) break; 310014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!property_holder->HasFastProperties()) break; 311014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch auto function = Handle<JSFunction>::cast(getter); 312014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallOptimization call_optimization(function); 313014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Map> receiver_map = map(); 314014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch inline_followup = call_optimization.is_simple_api_call() && 315014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch call_optimization.IsCompatibleReceiverMap( 316014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch receiver_map, property_holder); 317014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 321958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Label miss; 322958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InterceptorVectorSlotPush(receiver()); 323014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bool lost_holder_register = false; 324014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch auto holder_orig = holder(); 325014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // non masking interceptors must check the entire chain, so temporarily reset 326014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // the holder to be that last element for the FrontendHeader call. 327014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (holder()->GetNamedInterceptor()->non_masking()) { 328014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(!inline_followup); 329014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch JSObject* last = *holder(); 330014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PrototypeIterator iter(isolate(), last); 331014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch while (!iter.IsAtEnd()) { 332014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch lost_holder_register = true; 333014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Casting to JSObject is fine here. The LookupIterator makes sure to 334014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // look behind non-masking interceptors during the original lookup, and 335014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // we wouldn't try to compile a handler if there was a Proxy anywhere. 336014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch last = iter.GetCurrent<JSObject>(); 337014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch iter.Advance(); 338014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 339014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch auto last_handle = handle(last); 340014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch set_holder(last_handle); 341014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 342014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register reg = FrontendHeader(receiver(), it->name(), &miss, RETURN_HOLDER); 343014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Reset the holder so further calculations are correct. 344014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch set_holder(holder_orig); 345014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (lost_holder_register) { 346014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (*it->GetReceiver() == *holder()) { 347014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch reg = receiver(); 348014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 349014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Reload lost holder register. 350014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch auto cell = isolate()->factory()->NewWeakCell(holder()); 351014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ LoadWeakValue(reg, cell, &miss); 352014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 353014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 354958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier FrontendFooter(it->name(), &miss); 355958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InterceptorVectorSlotPop(reg); 356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (inline_followup) { 357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(368): Compile in the whole chain: all the interceptors in 358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // prototypes and ultimate answer. 359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateLoadInterceptorWithFollowup(it, reg); 360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateLoadInterceptor(reg); 362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, it->name()); 364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid NamedLoadHandlerCompiler::GenerateLoadPostInterceptor( 368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LookupIterator* it, Register interceptor_reg) { 369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSObject> real_named_property_holder(it->GetHolder<JSObject>()); 370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 371014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Map> holder_map(holder()->map()); 372014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch set_map(holder_map); 373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_holder(real_named_property_holder); 374958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 375958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Label miss; 376958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InterceptorVectorSlotPush(interceptor_reg); 377014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register reg = 378014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch FrontendHeader(interceptor_reg, it->name(), &miss, RETURN_HOLDER); 379958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier FrontendFooter(it->name(), &miss); 380958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // We discard the vector and slot now because we don't miss below this point. 381958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InterceptorVectorSlotPop(reg, DISCARD); 382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (it->state()) { 384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::ACCESS_CHECK: 385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::INTERCEPTOR: 386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::JSPROXY: 387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::NOT_FOUND: 388014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case LookupIterator::INTEGER_INDEXED_EXOTIC: 389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::TRANSITION: 390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::DATA: { 392014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK_EQ(DATA, it->property_details().type()); 393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(receiver(), reg); 394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LoadFieldStub stub(isolate(), it->GetFieldIndex()); 395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateTailCall(masm(), stub.GetCode()); 396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case LookupIterator::ACCESSOR: 399014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (it->GetAccessors()->IsExecutableAccessorInfo()) { 400014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<ExecutableAccessorInfo> info = 401014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<ExecutableAccessorInfo>::cast(it->GetAccessors()); 402014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK_NOT_NULL(info->getter()); 403014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GenerateLoadCallback(reg, info); 404014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 405014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch auto function = handle(JSFunction::cast( 406014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch AccessorPair::cast(*it->GetAccessors())->getter())); 407014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallOptimization call_optimization(function); 408014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GenerateApiAccessorCall(masm(), call_optimization, holder_map, 409014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch receiver(), scratch2(), false, no_reg, reg, 410014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch it->GetAccessorIndex()); 411014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedLoadHandlerCompiler::CompileLoadViaGetter( 417014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Name> name, int accessor_index, int expected_arguments) { 418014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register holder = Frontend(name); 419014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GenerateLoadViaGetter(masm(), map(), receiver(), holder, accessor_index, 420014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch expected_arguments, scratch2()); 421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, name); 422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// TODO(verwaest): Cleanup. holder() is actually the receiver. 426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedStoreHandlerCompiler::CompileStoreTransition( 427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> transition, Handle<Name> name) { 428958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Label miss; 429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 430014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PushVectorAndSlot(); 431014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check that we are allowed to write this. 433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_nonexistent = holder()->map() == transition->GetBackPointer(); 434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (is_nonexistent) { 435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Find the top object. 436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSObject> last; 437014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PrototypeIterator::WhereToEnd end = 438014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch name->IsPrivate() ? PrototypeIterator::END_AT_NON_HIDDEN 439014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : PrototypeIterator::END_AT_NULL; 440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrototypeIterator iter(isolate(), holder()); 441014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch while (!iter.IsAtEnd(end)) { 442014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch last = PrototypeIterator::GetCurrent<JSObject>(iter); 443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch iter.Advance(); 444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!last.is_null()) set_holder(last); 446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch NonexistentFrontendHeader(name, &miss, scratch1(), scratch2()); 447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 448014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch FrontendHeader(receiver(), name, &miss, DONT_RETURN_ANYTHING); 449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(holder()->HasFastProperties()); 450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 452958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier int descriptor = transition->LastAdded(); 453958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Handle<DescriptorArray> descriptors(transition->instance_descriptors()); 454958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier PropertyDetails details = descriptors->GetDetails(descriptor); 455958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Representation representation = details.representation(); 456958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(!representation.IsNone()); 457958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 458958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // Stub is never generated for objects that require access checks. 459958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(!transition->is_access_check_needed()); 460958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 461958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // Call to respective StoreTransitionStub. 462014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bool virtual_args = StoreTransitionHelper::HasVirtualSlotArg(); 463014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register map_reg = StoreTransitionHelper::MapRegister(); 464014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 465014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (details.type() == DATA_CONSTANT) { 466958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(descriptors->GetValue(descriptor)->IsJSFunction()); 467014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register tmp = 468014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch virtual_args ? VectorStoreICDescriptor::VectorRegister() : map_reg; 469014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GenerateRestoreMap(transition, tmp, scratch2(), &miss); 470014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GenerateConstantCheck(tmp, descriptor, value(), scratch2(), &miss); 471014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (virtual_args) { 472014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // This will move the map from tmp into map_reg. 473014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch RearrangeVectorAndSlot(tmp, map_reg); 474014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 475014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PopVectorAndSlot(); 476014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 477958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier GenerateRestoreName(name); 478958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier StoreTransitionStub stub(isolate()); 479958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier GenerateTailCall(masm(), stub.GetCode()); 480958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 481958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else { 482958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (representation.IsHeapObject()) { 483958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier GenerateFieldTypeChecks(descriptors->GetFieldType(descriptor), value(), 484958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier &miss); 485958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 486958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier StoreTransitionStub::StoreMode store_mode = 487958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Map::cast(transition->GetBackPointer())->unused_property_fields() == 0 488958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier ? StoreTransitionStub::ExtendStorageAndStoreMapAndValue 489958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : StoreTransitionStub::StoreMapAndValue; 490958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 491014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register tmp = 492014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch virtual_args ? VectorStoreICDescriptor::VectorRegister() : map_reg; 493014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GenerateRestoreMap(transition, tmp, scratch2(), &miss); 494014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (virtual_args) { 495014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch RearrangeVectorAndSlot(tmp, map_reg); 496014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 497014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PopVectorAndSlot(); 498014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 499958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier GenerateRestoreName(name); 500958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier StoreTransitionStub stub(isolate(), 501958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier FieldIndex::ForDescriptor(*transition, descriptor), 502958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier representation, store_mode); 503958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier GenerateTailCall(masm(), stub.GetCode()); 504958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateRestoreName(&miss, name); 507014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PopVectorAndSlot(); 508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch TailCallBuiltin(masm(), MissBuiltin(kind())); 509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, name); 511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 514014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochbool NamedStoreHandlerCompiler::RequiresFieldTypeChecks( 515014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HeapType* field_type) const { 516014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return !field_type->Classes().Done(); 517014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 518014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 519014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedStoreHandlerCompiler::CompileStoreField(LookupIterator* it) { 521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label miss; 522958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(it->representation().IsHeapObject()); 523958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 524014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HeapType* field_type = *it->GetFieldType(); 525014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bool need_save_restore = false; 526014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (RequiresFieldTypeChecks(field_type)) { 527014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch need_save_restore = IC::ICUseVector(kind()); 528014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (need_save_restore) PushVectorAndSlot(); 529014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GenerateFieldTypeChecks(field_type, value(), &miss); 530014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (need_save_restore) PopVectorAndSlot(); 531014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 532014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 533958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier StoreFieldStub stub(isolate(), it->GetFieldIndex(), it->representation()); 534958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier GenerateTailCall(masm(), stub.GetCode()); 535958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&miss); 537014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (need_save_restore) PopVectorAndSlot(); 538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch TailCallBuiltin(masm(), MissBuiltin(kind())); 539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, it->name()); 540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedStoreHandlerCompiler::CompileStoreViaSetter( 544014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<JSObject> object, Handle<Name> name, int accessor_index, 545014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int expected_arguments) { 546014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register holder = Frontend(name); 547014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GenerateStoreViaSetter(masm(), map(), receiver(), holder, accessor_index, 548014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch expected_arguments, scratch2()); 549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, name); 551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<Code> NamedStoreHandlerCompiler::CompileStoreCallback( 555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSObject> object, Handle<Name> name, 556014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch const CallOptimization& call_optimization, int accessor_index) { 557014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register holder = Frontend(name); 558014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GenerateApiAccessorCall(masm(), call_optimization, handle(object->map()), 559014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch receiver(), scratch2(), true, value(), holder, 560014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch accessor_index); 561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetCode(kind(), Code::FAST, name); 562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef __ 566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid ElementHandlerCompiler::CompileElementHandlers( 569014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch MapHandleList* receiver_maps, CodeHandleList* handlers, 570014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LanguageMode language_mode) { 571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < receiver_maps->length(); ++i) { 572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> receiver_map = receiver_maps->at(i); 573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> cached_stub; 574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 575958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (receiver_map->IsStringMap()) { 576958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier cached_stub = LoadIndexedStringStub(isolate()).GetCode(); 577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (receiver_map->instance_type() < FIRST_JS_RECEIVER_TYPE) { 578014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch cached_stub = is_strong(language_mode) 579014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ? isolate()->builtins()->KeyedLoadIC_Slow_Strong() 580014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : isolate()->builtins()->KeyedLoadIC_Slow(); 581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE; 583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind elements_kind = receiver_map->elements_kind(); 584014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 585014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // No need to check for an elements-free prototype chain here, the 586014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // generated stub code needs to check that dynamically anyway. 587014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bool convert_hole_to_undefined = 588014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch (is_js_array && elements_kind == FAST_HOLEY_ELEMENTS && 589014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch *receiver_map == 590014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate()->get_initial_js_array_map(elements_kind)) && 591014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !is_strong(language_mode); 592014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (receiver_map->has_indexed_interceptor()) { 594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cached_stub = LoadIndexedInterceptorStub(isolate()).GetCode(); 595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (IsSloppyArgumentsElements(elements_kind)) { 596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cached_stub = KeyedLoadSloppyArgumentsStub(isolate()).GetCode(); 597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (IsFastElementsKind(elements_kind) || 598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsFixedTypedArrayElementsKind(elements_kind)) { 599014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch cached_stub = LoadFastElementStub(isolate(), is_js_array, elements_kind, 600014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch convert_hole_to_undefined).GetCode(); 601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(elements_kind == DICTIONARY_ELEMENTS); 603014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LoadICState state = 604014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LoadICState(is_strong(language_mode) ? LoadICState::kStrongModeState 605014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : kNoExtraICState); 606014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch cached_stub = LoadDictionaryElementStub(isolate(), state).GetCode(); 607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch handlers->Add(cached_stub); 611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 613014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace internal 614014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace v8 615