Fixed Code::FindCodeAgeSequence logic, removing a dead method on the way.

src/objects.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 8816 matching lines @@
   byte* sequence = FindCodeAgeSequence();
   if (sequence == NULL) return false;
   Age age;
   MarkingParity parity;
   GetCodeAgeAndParity(sequence, &age, &parity);
   return age >= kSexagenarianCodeAge;
 }
 
 
 byte* Code::FindCodeAgeSequence() {
-  if (kind() != FUNCTION && kind() != OPTIMIZED_FUNCTION) return NULL;
-  if (strlen(FLAG_stop_at) == 0 &&
+  return FLAG_age_code &&
+      strlen(FLAG_stop_at) == 0 &&
       !ProfileEntryHookStub::HasEntryHook() &&
-      (kind() == FUNCTION && !has_debug_break_slots())) {
-    return FindPlatformCodeAgeSequence();
-  }
-  return NULL;
+      (kind() == OPTIMIZED_FUNCTION ||
+       (kind() == FUNCTION && !has_debug_break_slots()))
+      ? FindPlatformCodeAgeSequence()
+      : NULL;
 }
 
 
 void Code::GetCodeAgeAndParity(Code* code, Age* age,
                                MarkingParity* parity) {
   Isolate* isolate = Isolate::Current();
   Builtins* builtins = isolate->builtins();
   Code* stub = NULL;
 #define HANDLE_CODE_AGE(AGE)                                            \
   stub = *builtins->Make##AGE##CodeYoungAgainEvenMarking();             \
@@ skipping 5006 matching lines @@
   set_year(Smi::FromInt(year), SKIP_WRITE_BARRIER);
   set_month(Smi::FromInt(month), SKIP_WRITE_BARRIER);
   set_day(Smi::FromInt(day), SKIP_WRITE_BARRIER);
   set_weekday(Smi::FromInt(weekday), SKIP_WRITE_BARRIER);
   set_hour(Smi::FromInt(hour), SKIP_WRITE_BARRIER);
   set_min(Smi::FromInt(min), SKIP_WRITE_BARRIER);
   set_sec(Smi::FromInt(sec), SKIP_WRITE_BARRIER);
 }
 
 } }  // namespace v8::internal