Allocation Info Tracking, continued.

src/objects.h

 // 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 4153 matching lines @@
   // Accessors for global property cells holding the cache values.
   inline JSGlobalPropertyCell* Cell(int index);
   inline void SetCell(int index, JSGlobalPropertyCell* cell);
 
   // The object that indicates an uninitialized cache.
   static inline Handle<Object> UninitializedSentinel(Isolate* isolate);
 
   // The object that indicates a megamorphic state.
   static inline Handle<Object> MegamorphicSentinel(Isolate* isolate);
 
+  // The object that indicates a monomorphic state of Array with
+  // ElementsKind
+  static inline Handle<Object> MonomorphicArraySentinel(
+      ElementsKind elements_kind);
+
   // A raw version of the uninitialized sentinel that's safe to read during
   // garbage collection (e.g., for patching the cache).
   static inline Object* RawUninitializedSentinel(Heap* heap);
 
   // Casting.
   static inline TypeFeedbackCells* cast(Object* obj);
 
   static const int kForInFastCaseMarker = 0;
   static const int kForInSlowCaseMarker = 1;
 };
@@ skipping 2787 matching lines @@
 };
 
 
 enum AllocationSiteMode {
   DONT_TRACK_ALLOCATION_SITE,
   TRACK_ALLOCATION_SITE,
   LAST_ALLOCATION_SITE_MODE = TRACK_ALLOCATION_SITE
 };
 
 
+

[Toon Verwaest, 2013/02/13 15:14:51]

Remove.

[Toon Verwaest, 2013/02/21 12:13:03]

... remove.

On 2013/02/13 15:14:51, Toon Verwaest wrote:

[mvstanton, 2013/02/27 14:37:07]

Done.

+
 class AllocationSiteInfo: public Struct {
  public:
   DECL_ACCESSORS(payload, Object)
 
   static inline AllocationSiteInfo* cast(Object* obj);
 
   DECLARE_PRINTER(AllocationSiteInfo)
   DECLARE_VERIFIER(AllocationSiteInfo)
 
   // Returns NULL if no AllocationSiteInfo is available for object.
   static AllocationSiteInfo* FindForJSObject(JSObject* object);
 
   static AllocationSiteMode GetMode(ElementsKind boilerplate_elements_kind);
   static AllocationSiteMode GetMode(ElementsKind from, ElementsKind to);
 
   static const int kPayloadOffset = HeapObject::kHeaderSize;
   static const int kSize = kPayloadOffset + kPointerSize;
 
+  bool GetElementsKindPayload(ElementsKind* kind);
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(AllocationSiteInfo);
 };
 
 
 // Representation of a slow alias as part of a non-strict arguments objects.
 // For fast aliases (if HasNonStrictArgumentsElements()):
 // - the parameter map contains an index into the context
 // - all attributes of the element have default values
 // For slow aliases (if HasDictionaryArgumentsElements()):
@@ skipping 1941 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_