load ics for js api accessors

src/ic.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 1339 matching lines @@
         if (v8::ToCData<Address>(info->getter()) == 0) break;
         if (!info->IsCompatibleReceiver(*receiver)) break;
         return isolate()->stub_cache()->ComputeLoadCallback(
             name, receiver, holder, info);
       } else if (callback->IsAccessorPair()) {
         Handle<Object> getter(Handle<AccessorPair>::cast(callback)->getter(),
                               isolate());
         if (!getter->IsJSFunction()) break;
         if (holder->IsGlobalObject()) break;
         if (!holder->HasFastProperties()) break;
+        Handle<JSFunction> function = Handle<JSFunction>::cast(getter);
+        CallOptimization call_optimization(function);
+        if (call_optimization.is_simple_api_call() &&
+            call_optimization.IsCompatibleReceiver(*receiver)) {
+          return isolate()->stub_cache()->ComputeLoadCallback(
+              name, receiver, holder, call_optimization);
+        }
         return isolate()->stub_cache()->ComputeLoadViaGetter(
-            name, receiver, holder, Handle<JSFunction>::cast(getter));
+            name, receiver, holder, function);
       } else if (receiver->IsJSArray() &&
           name->Equals(isolate()->heap()->length_string())) {
         PropertyIndex lengthIndex =
           PropertyIndex::NewHeaderIndex(JSArray::kLengthOffset / kPointerSize);
         return isolate()->stub_cache()->ComputeLoadField(
             name, receiver, holder, lengthIndex, Representation::Tagged());
       }
       // TODO(dcarney): Handle correctly.
       if (callback->IsDeclaredAccessorInfo()) break;
       ASSERT(callback->IsForeign());
@@ skipping 165 matching lines @@
       Handle<Object> constant(lookup->GetConstant(), isolate());
       // TODO(2803): Don't compute a stub for cons strings because they cannot
       // be embedded into code.
       if (constant->IsConsString()) return Handle<Code>::null();
       return isolate()->stub_cache()->ComputeKeyedLoadConstant(
           name, receiver, holder, constant);
     }
     case CALLBACKS: {
       Handle<Object> callback_object(lookup->GetCallbackObject(), isolate());
       // TODO(dcarney): Handle DeclaredAccessorInfo correctly.
-      if (!callback_object->IsExecutableAccessorInfo()) break;
-      Handle<ExecutableAccessorInfo> callback =
-          Handle<ExecutableAccessorInfo>::cast(callback_object);
-      if (v8::ToCData<Address>(callback->getter()) == 0) break;
-      if (!callback->IsCompatibleReceiver(*receiver)) break;
-      return isolate()->stub_cache()->ComputeKeyedLoadCallback(
-          name, receiver, holder, callback);
+      if (callback_object->IsExecutableAccessorInfo()) {
+        Handle<ExecutableAccessorInfo> callback =
+            Handle<ExecutableAccessorInfo>::cast(callback_object);
+        if (v8::ToCData<Address>(callback->getter()) == 0) break;
+        if (!callback->IsCompatibleReceiver(*receiver)) break;
+        return isolate()->stub_cache()->ComputeKeyedLoadCallback(
+            name, receiver, holder, callback);
+      } else if (callback_object->IsAccessorPair()) {
+        Handle<Object> getter(
+            Handle<AccessorPair>::cast(callback_object)->getter(),
+            isolate());
+        if (!getter->IsJSFunction()) break;
+        if (holder->IsGlobalObject()) break;
+        if (!holder->HasFastProperties()) break;
+        Handle<JSFunction> function = Handle<JSFunction>::cast(getter);
+        CallOptimization call_optimization(function);
+        if (call_optimization.is_simple_api_call() &&
+            call_optimization.IsCompatibleReceiver(*receiver)) {
+          return isolate()->stub_cache()->ComputeKeyedLoadCallback(
+              name, receiver, holder, call_optimization);
+        }
+      }
+      break;
     }
     case INTERCEPTOR:
       ASSERT(HasInterceptorGetter(lookup->holder()));
       return isolate()->stub_cache()->ComputeKeyedLoadInterceptor(
           name, receiver, holder);
     default:
       // Always rewrite to the generic case so that we do not
       // repeatedly try to rewrite.
       return generic_stub();
   }
@@ skipping 1541 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal