Enable preaging of code objects when --optimize-for-size.

src/builtins.h

 // 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 186 matching lines @@
                                     Code::kNoExtraICState)              \
                                                                         \
   V(OnStackReplacement,             BUILTIN, UNINITIALIZED,             \
                                     Code::kNoExtraICState)              \
   V(InterruptCheck,                 BUILTIN, UNINITIALIZED,             \
                                     Code::kNoExtraICState)              \
   V(OsrAfterStackCheck,             BUILTIN, UNINITIALIZED,             \
                                     Code::kNoExtraICState)              \
   V(StackCheck,                     BUILTIN, UNINITIALIZED,             \
                                     Code::kNoExtraICState)              \
+                                                                        \
+  V(MarkCodeAsExecutedOnce,         BUILTIN, UNINITIALIZED,             \
+                                    Code::kNoExtraICState)              \
+  V(MarkCodeAsExecutedTwice,        BUILTIN, UNINITIALIZED,             \
+                                    Code::kNoExtraICState)              \
   CODE_AGE_LIST_WITH_ARG(DECLARE_CODE_AGE_BUILTIN, V)
 
 // Define list of builtin handlers implemented in assembly.
 #define BUILTIN_LIST_H(V)                                                 \
   V(LoadIC_Slow,                    LOAD_IC, Code::kNoExtraICState)       \
   V(KeyedLoadIC_Slow,               KEYED_LOAD_IC, Code::kNoExtraICState) \
   V(StoreIC_Slow,                   STORE_IC, Code::kNoExtraICState)      \
   V(StoreIC_Slow_Strict,            STORE_IC, kStrictMode)                \
   V(KeyedStoreIC_Slow,              KEYED_STORE_IC, Code::kNoExtraICState)\
   V(KeyedStoreIC_Slow_Strict,       KEYED_STORE_IC, kStrictMode)          \
@@ skipping 189 matching lines @@
   static void Generate_StackCheck(MacroAssembler* masm);
 
 #define DECLARE_CODE_AGE_BUILTIN_GENERATOR(C)                \
   static void Generate_Make##C##CodeYoungAgainEvenMarking(   \
       MacroAssembler* masm);                                 \
   static void Generate_Make##C##CodeYoungAgainOddMarking(    \
       MacroAssembler* masm);
   CODE_AGE_LIST(DECLARE_CODE_AGE_BUILTIN_GENERATOR)
 #undef DECLARE_CODE_AGE_BUILTIN_GENERATOR
 
+  static void Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm);
+  static void Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm);
+
   static void InitBuiltinFunctionTable();
 
   bool initialized_;
 
   friend class BuiltinFunctionTable;
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_BUILTINS_H_