Split incremental marking write barrier into fast and slow paths.

src/incremental-marking.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 41 matching lines @@
 
   State state() {
     ASSERT(state_ == STOPPED || FLAG_incremental_marking);
     return state_;
   }
 
   bool should_hurry() { return should_hurry_; }
 
   inline bool IsStopped() { return state() == STOPPED; }
 
-  inline bool IsMarking() { return state() >= MARKING; }
+  INLINE(bool IsMarking()) { return state() >= MARKING; }
 
   inline bool IsMarkingIncomplete() { return state() == MARKING; }
 
   bool WorthActivating();
 
   void Start();
 
   void Stop();
 
   void PrepareForScavenge();
@@ skipping 40 matching lines @@
   }
 
   static void RecordWriteFromCode(HeapObject* obj,
                                   Object* value,
                                   Isolate* isolate);
 
   static void RecordWriteForEvacuationFromCode(HeapObject* obj,
                                                Object** slot,
                                                Isolate* isolate);
 
-  inline bool BaseRecordWrite(HeapObject* obj, Object** slot, Object* value);
+  INLINE(bool BaseRecordWrite(HeapObject* obj, Object** slot, Object* value));
+  INLINE(void RecordWrite(HeapObject* obj, Object** slot, Object* value));
+  INLINE(void RecordWriteIntoCode(HeapObject* obj,
+                                  RelocInfo* rinfo,
+                                  Object* value));
+  INLINE(void RecordWriteOfCodeEntry(JSFunction* host,
+                                     Object** slot,
+                                     Code* value));
 
 
-  inline void RecordWrite(HeapObject* obj, Object** slot, Object* value);
-  inline void RecordWriteIntoCode(HeapObject* obj,
-                                  RelocInfo* rinfo,
-                                  Object* value);
+  void RecordWriteSlow(HeapObject* obj, Object** slot, Object* value);
+  void RecordWriteIntoCodeSlow(HeapObject* obj,
+                               RelocInfo* rinfo,
+                               Object* value);
+  void RecordWriteOfCodeEntrySlow(JSFunction* host, Object** slot, Code* value);
   void RecordCodeTargetPatch(Code* host, Address pc, HeapObject* value);
   void RecordCodeTargetPatch(Address pc, HeapObject* value);
-  void RecordWriteOfCodeEntry(JSFunction* host, Object** slot, Code* value);
 
   inline void RecordWrites(HeapObject* obj);
 
   inline void BlackToGreyAndUnshift(HeapObject* obj, MarkBit mark_bit);
 
   inline void WhiteToGreyAndPush(HeapObject* obj, MarkBit mark_bit);
 
   inline void WhiteToGrey(HeapObject* obj, MarkBit mark_bit);
 
   // Does white->black or keeps gray or black color. Returns true if converting
@@ skipping 115 matching lines @@
   intptr_t allocated_;
 
   int no_marking_scope_depth_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_INCREMENTAL_MARKING_H_