CallICStub with a "never patch" approach until customization.

src/spaces.cc

 // Copyright 2011 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 1066 matching lines @@
     case PROPERTY_CELL_SPACE:
       size = 8 * kPointerSize * KB;
       break;
     case CODE_SPACE:
       if (heap()->isolate()->code_range()->exists()) {
         // When code range exists, code pages are allocated in a special way
         // (from the reserved code range). That part of the code is not yet
         // upgraded to handle small pages.
         size = AreaSize();
       } else {
-        size = 480 * KB * FullCodeGenerator::kBootCodeSizeMultiplier / 100;
+        size = RoundUp(
+            480 * KB * FullCodeGenerator::kBootCodeSizeMultiplier / 100,
+            kPointerSize);
       }
       break;
     default:
       UNREACHABLE();
   }
   return Min(size, AreaSize());
 }
 
 
 int PagedSpace::CountTotalPages() {
@@ skipping 2116 matching lines @@
     object->ShortPrint();
     PrintF("\n");
   }
   printf(" --------------------------------------\n");
   printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes());
 }
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal