Implement specialized IC code stubs for pixel array stores.

src/ic.cc

 // Copyright 2006-2009 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 1614 matching lines @@
     return receiver->SetProperty(*name, *value, NONE);
   }
 
   // Do not use ICs for objects that require access checks (including
   // the global object).
   bool use_ic = FLAG_use_ic && !object->IsAccessCheckNeeded();
   ASSERT(!(use_ic && object->IsJSGlobalProxy()));
 
   if (use_ic) {
     Code* stub = generic_stub();
-    if (object->IsJSObject()) {
-      Handle<JSObject> receiver = Handle<JSObject>::cast(object);
-      if (receiver->HasExternalArrayElements()) {
-        MaybeObject* probe =
-            StubCache::ComputeKeyedLoadOrStoreExternalArray(*receiver, true);
-        stub =
-            probe->IsFailure() ? NULL : Code::cast(probe->ToObjectUnchecked());
-      } else if (state == UNINITIALIZED &&
-                 key->IsSmi() &&
-                 receiver->map()->has_fast_elements()) {
-        MaybeObject* probe = StubCache::ComputeKeyedStoreSpecialized(*receiver);
-        stub =
-            probe->IsFailure() ? NULL : Code::cast(probe->ToObjectUnchecked());
+    if (state == UNINITIALIZED) {
+      if (object->IsJSObject()) {
+        Handle<JSObject> receiver = Handle<JSObject>::cast(object);
+        if (receiver->HasExternalArrayElements()) {
+          MaybeObject* probe =
+              StubCache::ComputeKeyedLoadOrStoreExternalArray(*receiver, true);
+          stub = probe->IsFailure() ?
+              NULL : Code::cast(probe->ToObjectUnchecked());
+        } else if (receiver->HasPixelElements()) {
+          MaybeObject* probe =
+              StubCache::ComputeKeyedStorePixelArray(*receiver);
+          stub = probe->IsFailure() ?
+              NULL : Code::cast(probe->ToObjectUnchecked());
+        } else if (key->IsSmi() && receiver->map()->has_fast_elements()) {
+          MaybeObject* probe =
+              StubCache::ComputeKeyedStoreSpecialized(*receiver);
+          stub = probe->IsFailure() ?
+              NULL : Code::cast(probe->ToObjectUnchecked());
+        }
       }
     }
     if (stub != NULL) set_target(stub);
   }
 
   // Set the property.
   return Runtime::SetObjectProperty(object, key, value, NONE);
 }
 
 
@@ skipping 622 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal