Split CompileCallConstant into logical parts for Frontend and Backend.

src/stub-cache.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 560 matching lines @@
   // Compute check type based on receiver/holder.
   CheckType check = RECEIVER_MAP_CHECK;
   if (object->IsString()) {
     check = STRING_CHECK;
   } else if (object->IsNumber()) {
     check = NUMBER_CHECK;
   } else if (object->IsBoolean()) {
     check = BOOLEAN_CHECK;
   }
 
+  if (check != RECEIVER_MAP_CHECK &&
+      !function->IsBuiltin() &&
+      function->shared()->is_classic_mode()) {
+    // Calling non-strict non-builtins with a value as the receiver
+    // requires boxing.
+    return Handle<Code>::null();
+  }
+
   Code::Flags flags =
       Code::ComputeMonomorphicFlags(kind, Code::CONSTANT_FUNCTION, extra_state,
                                     cache_holder, argc);
   Handle<Object> probe(map_holder->map()->FindInCodeCache(*name, flags),
                        isolate_);
   if (probe->IsCode()) return Handle<Code>::cast(probe);
 
   CallStubCompiler compiler(isolate_, argc, kind, extra_state, cache_holder);
   Handle<Code> code =
-      compiler.CompileCallConstant(object, holder, function, name, check);
+      compiler.CompileCallConstant(object, holder, name, check, function);
   code->set_check_type(check);
   ASSERT_EQ(flags, code->flags());
   PROFILE(isolate_,
           CodeCreateEvent(CALL_LOGGER_TAG(kind, CALL_IC_TAG), *code, *name));
   GDBJIT(AddCode(GDBJITInterface::CALL_IC, *name, *code));
   JSObject::UpdateMapCodeCache(map_holder, name, code);
   return code;
 }
 
 
@@ skipping 1153 matching lines @@
           Handle<FunctionTemplateInfo>(
               FunctionTemplateInfo::cast(signature->receiver()));
     }
   }
 
   is_simple_api_call_ = true;
 }
 
 
 } }  // namespace v8::internal