Never call CpuFeatures::FlushICache directly

src/assembler.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 218 matching lines @@
   static inline bool SupportsCrankshaft();
 
   static inline unsigned cache_line_size() {
     DCHECK(cache_line_size_ != 0);
     return cache_line_size_;
   }
 
   static void PrintTarget();
   static void PrintFeatures();
 
+ private:
+  friend class ExternalReference;
+  friend class AssemblerBase;
   // Flush instruction cache.
   static void FlushICache(void* start, size_t size);
 
- private:
   // Platform-dependent implementation.
   static void ProbeImpl(bool cross_compile);
 
   static unsigned supported_;
   static unsigned cache_line_size_;
   static bool initialized_;
-  friend class ExternalReference;
   DISALLOW_COPY_AND_ASSIGN(CpuFeatures);
 };
 
 
 // -----------------------------------------------------------------------------
 // Labels represent pc locations; they are typically jump or call targets.
 // After declaration, a label can be freely used to denote known or (yet)
 // unknown pc location. Assembler::bind() is used to bind a label to the
 // current pc. A label can be bound only once.
 
@@ skipping 1032 matching lines @@
     std::vector<ConstantPoolEntry> shared_entries;
   };
 
   Label emitted_label_;  // Records pc_offset of emitted pool
   PerTypeEntryInfo info_[ConstantPoolEntry::NUMBER_OF_TYPES];
 };
 
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_ASSEMBLER_H_