Refactor transitioning stores.

src/hydrogen.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "hydrogen.h"
 
 #include <algorithm>
 
 #include "v8.h"
 #include "allocation-site-scopes.h"
@@ skipping 5511 matching lines @@
 
     // This is a normal store.
     instr = New<HStoreNamedField>(
         checked_object->ActualValue(), field_access, value,
         transition_to_field ? INITIALIZING_STORE : STORE_TO_INITIALIZED_ENTRY);
   }
 
   if (transition_to_field) {
     Handle<Map> transition(info->transition());
     ASSERT(!transition->is_deprecated());
-    instr->SetTransition(Add<HConstant>(transition));
+    if (transition->CanBeDeprecated()) {
+      Map::AddDependentCompilationInfo(
+          transition, DependentCode::kTransitionGroup, top_info());
+    }
+    Add<HStoreNamedField>(checked_object->ActualValue(),
+                          HObjectAccess::ForMap(),
+                          Add<HConstant>(transition),
+                          STORE_TO_INITIALIZED_ENTRY);
   }
   return instr;
 }
 
 
 bool HOptimizedGraphBuilder::PropertyAccessInfo::IsCompatible(
     PropertyAccessInfo* info) {
   if (!CanInlinePropertyAccess(type_)) return false;
 
   // Currently only handle Type::Number as a polymorphic case.
@@ skipping 6266 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal