Pretenure call new support.

src/code-stubs-hydrogen.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 456 matching lines @@
   return environment()->Pop();
 }
 
 
 Handle<Code> FastCloneShallowObjectStub::GenerateCode(Isolate* isolate) {
   return DoGenerateCode(isolate, this);
 }
 
 
 template <>
-HValue* CodeStubGraphBuilder<CreateAllocationSiteStub>::BuildCodeStub() {
-  HValue* size = Add<HConstant>(AllocationSite::kSize);
-  HInstruction* object = Add<HAllocate>(size, HType::JSObject(), TENURED,
-      JS_OBJECT_TYPE);
-
-  // Store the map
-  Handle<Map> allocation_site_map = isolate()->factory()->allocation_site_map();
-  AddStoreMapConstant(object, allocation_site_map);
-
-  // Store the payload (smi elements kind)
-  HValue* initial_elements_kind = Add<HConstant>(GetInitialFastElementsKind());
-  Add<HStoreNamedField>(object,
-                        HObjectAccess::ForAllocationSiteOffset(
-                            AllocationSite::kTransitionInfoOffset),
-                        initial_elements_kind);
-
-  // Unlike literals, constructed arrays don't have nested sites
-  Add<HStoreNamedField>(object,
-                        HObjectAccess::ForAllocationSiteOffset(
-                            AllocationSite::kNestedSiteOffset),
-                        graph()->GetConstant0());
-
-  // Pretenuring calculation field.
-  Add<HStoreNamedField>(object,
-                        HObjectAccess::ForAllocationSiteOffset(
-                            AllocationSite::kPretenureDataOffset),
-                        graph()->GetConstant0());
-
-  // Pretenuring memento creation count field.
-  Add<HStoreNamedField>(object,
-                        HObjectAccess::ForAllocationSiteOffset(
-                            AllocationSite::kPretenureCreateCountOffset),
-                        graph()->GetConstant0());
-
-  // Store an empty fixed array for the code dependency.
-  HConstant* empty_fixed_array =
-    Add<HConstant>(isolate()->factory()->empty_fixed_array());
-  HStoreNamedField* store = Add<HStoreNamedField>(
-      object,
-      HObjectAccess::ForAllocationSiteOffset(
-          AllocationSite::kDependentCodeOffset),
-      empty_fixed_array);
-
-  // Link the object to the allocation site list
-  HValue* site_list = Add<HConstant>(
-      ExternalReference::allocation_sites_list_address(isolate()));
-  HValue* site = Add<HLoadNamedField>(
-      site_list, static_cast<HValue*>(NULL),
-      HObjectAccess::ForAllocationSiteList());
-  store = Add<HStoreNamedField>(object,
-      HObjectAccess::ForAllocationSiteOffset(AllocationSite::kWeakNextOffset),
-      site);
-  store->SkipWriteBarrier();
-  Add<HStoreNamedField>(site_list, HObjectAccess::ForAllocationSiteList(),
-                        object);
-
-  HInstruction* feedback_vector = GetParameter(0);
-  HInstruction* slot = GetParameter(1);
-  Add<HStoreKeyed>(feedback_vector, slot, object, FAST_ELEMENTS,
-                   INITIALIZING_STORE);
-  return feedback_vector;
-}
-
-
-Handle<Code> CreateAllocationSiteStub::GenerateCode(Isolate* isolate) {
-  return DoGenerateCode(isolate, this);
-}
-
-
-template <>
 HValue* CodeStubGraphBuilder<KeyedLoadFastElementStub>::BuildCodeStub() {
   HInstruction* load = BuildUncheckedMonomorphicElementAccess(
       GetParameter(0), GetParameter(1), NULL,
       casted_stub()->is_js_array(), casted_stub()->elements_kind(),
       LOAD, NEVER_RETURN_HOLE, STANDARD_STORE);
   return load;
 }
 
 
 Handle<Code> KeyedLoadFastElementStub::GenerateCode(Isolate* isolate) {
@@ skipping 838 matching lines @@
   return BuildRegExpConstructResult(length, index, input);
 }
 
 
 Handle<Code> RegExpConstructResultStub::GenerateCode(Isolate* isolate) {
   return DoGenerateCode(isolate, this);
 }
 
 
 } }  // namespace v8::internal