A64: Synchronize with r15545.

src/heap.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 214 matching lines @@
   V(RegExp_string, "RegExp")                                             \
   V(source_string, "source")                                             \
   V(global_string, "global")                                             \
   V(ignore_case_string, "ignoreCase")                                    \
   V(multiline_string, "multiline")                                       \
   V(input_string, "input")                                               \
   V(index_string, "index")                                               \
   V(last_index_string, "lastIndex")                                      \
   V(object_string, "object")                                             \
   V(payload_string, "payload")                                           \
+  V(literals_string, "literals")                                         \
   V(prototype_string, "prototype")                                       \
   V(string_string, "string")                                             \
   V(String_string, "String")                                             \
   V(unknown_field_string, "unknownField")                                \
   V(symbol_string, "symbol")                                             \
   V(Symbol_string, "Symbol")                                             \
   V(Date_string, "Date")                                                 \
   V(this_string, "this")                                                 \
   V(to_string_string, "toString")                                        \
   V(char_at_string, "CharAt")                                            \
   V(undefined_string, "undefined")                                       \
   V(value_of_string, "valueOf")                                          \
   V(stack_string, "stack")                                               \
   V(toJSON_string, "toJSON")                                             \
   V(InitializeVarGlobal_string, "InitializeVarGlobal")                   \
   V(InitializeConstGlobal_string, "InitializeConstGlobal")               \
   V(KeyedLoadElementMonomorphic_string,                                  \
     "KeyedLoadElementMonomorphic")                                       \
   V(KeyedStoreElementMonomorphic_string,                                 \
     "KeyedStoreElementMonomorphic")                                      \
   V(stack_overflow_string, "kStackOverflowBoilerplate")                  \
   V(illegal_access_string, "illegal access")                             \
   V(out_of_memory_string, "out-of-memory")                               \
   V(illegal_execution_state_string, "illegal execution state")           \
   V(get_string, "get")                                                   \
   V(set_string, "set")                                                   \
   V(map_field_string, "%map")                                            \
   V(elements_field_string, "%elements")                                  \
   V(length_field_string, "%length")                                      \
+  V(cell_value_string, "%cell_value")                                    \
   V(function_class_string, "Function")                                   \
   V(properties_field_symbol, "%properties")                              \
   V(payload_field_symbol, "%payload")                                    \
   V(illegal_argument_string, "illegal argument")                         \
   V(MakeReferenceError_string, "MakeReferenceError")                     \
   V(MakeSyntaxError_string, "MakeSyntaxError")                           \
   V(MakeTypeError_string, "MakeTypeError")                               \
   V(invalid_lhs_in_assignment_string, "invalid_lhs_in_assignment")       \
   V(invalid_lhs_in_for_in_string, "invalid_lhs_in_for_in")               \
   V(invalid_lhs_in_postfix_op_string, "invalid_lhs_in_postfix_op")       \
@@ skipping 376 matching lines @@
   // constructor.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
   // Please note this does not perform a garbage collection.
   MUST_USE_RESULT MaybeObject* AllocateJSObject(
       JSFunction* constructor,
       PretenureFlag pretenure = NOT_TENURED);
 
   MUST_USE_RESULT MaybeObject* AllocateJSObjectWithAllocationSite(
       JSFunction* constructor,
-      Handle<Object> allocation_site_info_payload);
+      Handle<AllocationSite> allocation_site);
 
   MUST_USE_RESULT MaybeObject* AllocateJSGeneratorObject(
       JSFunction* function);
 
   MUST_USE_RESULT MaybeObject* AllocateJSModule(Context* context,
                                                 ScopeInfo* scope_info);
 
   // Allocate a JSArray with no elements
   MUST_USE_RESULT MaybeObject* AllocateEmptyJSArray(
       ElementsKind elements_kind,
       PretenureFlag pretenure = NOT_TENURED) {
     return AllocateJSArrayAndStorage(elements_kind, 0, 0,
                                      DONT_INITIALIZE_ARRAY_ELEMENTS,
                                      pretenure);
   }
 
   inline MUST_USE_RESULT MaybeObject* AllocateEmptyJSArrayWithAllocationSite(
       ElementsKind elements_kind,
-      Handle<Object> allocation_site_payload);
+      Handle<AllocationSite> allocation_site);
 
   // Allocate a JSArray with a specified length but elements that are left
   // uninitialized.
   MUST_USE_RESULT MaybeObject* AllocateJSArrayAndStorage(
       ElementsKind elements_kind,
       int length,
       int capacity,
       ArrayStorageAllocationMode mode = DONT_INITIALIZE_ARRAY_ELEMENTS,
       PretenureFlag pretenure = NOT_TENURED);
 
   MUST_USE_RESULT MaybeObject* AllocateJSArrayAndStorageWithAllocationSite(
       ElementsKind elements_kind,
       int length,
       int capacity,
-      Handle<Object> allocation_site_payload,
+      Handle<AllocationSite> allocation_site,
       ArrayStorageAllocationMode mode = DONT_INITIALIZE_ARRAY_ELEMENTS);
 
   MUST_USE_RESULT MaybeObject* AllocateJSArrayStorage(
       JSArray* array,
       int length,
       int capacity,
       ArrayStorageAllocationMode mode = DONT_INITIALIZE_ARRAY_ELEMENTS);
 
   // Allocate a JSArray with no elements
   MUST_USE_RESULT MaybeObject* AllocateJSArrayWithElements(
       FixedArrayBase* array_base,
       ElementsKind elements_kind,
       int length,
       PretenureFlag pretenure = NOT_TENURED);
 
   // Allocates and initializes a new global object based on a constructor.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
   // Please note this does not perform a garbage collection.
   MUST_USE_RESULT MaybeObject* AllocateGlobalObject(JSFunction* constructor);
 
   // Returns a deep copy of the JavaScript object.
   // Properties and elements are copied too.
   // Returns failure if allocation failed.
   MUST_USE_RESULT MaybeObject* CopyJSObject(JSObject* source);
 
-  MUST_USE_RESULT MaybeObject* CopyJSObjectWithAllocationSite(JSObject* source);
+  MUST_USE_RESULT MaybeObject* CopyJSObjectWithAllocationSite(
+      JSObject* source, AllocationSite* site);
 
   // Allocates the function prototype.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
   // Please note this does not perform a garbage collection.
   MUST_USE_RESULT MaybeObject* AllocateFunctionPrototype(JSFunction* function);
 
   // Allocates a JS ArrayBuffer object.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
@@ skipping 29 matching lines @@
       JSFunction* constructor, JSGlobalProxy* global);
 
   // Allocates and initializes a new JavaScript object based on a map.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
   // Please note this does not perform a garbage collection.
   MUST_USE_RESULT MaybeObject* AllocateJSObjectFromMap(
       Map* map, PretenureFlag pretenure = NOT_TENURED);
 
   MUST_USE_RESULT MaybeObject* AllocateJSObjectFromMapWithAllocationSite(
-      Map* map, Handle<Object> allocation_site_info_payload);
+      Map* map, Handle<AllocationSite> allocation_site);
 
   // Allocates a heap object based on the map.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
   // Please note this function does not perform a garbage collection.
   MUST_USE_RESULT MaybeObject* Allocate(Map* map, AllocationSpace space);
 
   MUST_USE_RESULT MaybeObject* AllocateWithAllocationSite(Map* map,
-      AllocationSpace space, Handle<Object> allocation_site_info_payload);
+      AllocationSpace space, Handle<AllocationSite> allocation_site);
 
   // Allocates a JS Map in the heap.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
   // Please note this function does not perform a garbage collection.
   MUST_USE_RESULT MaybeObject* AllocateMap(
       InstanceType instance_type,
       int instance_size,
       ElementsKind elements_kind = TERMINAL_FAST_ELEMENTS_KIND);
 
@@ skipping 157 matching lines @@
   // Allocate a tenured JS global property cell.
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
   // Please note this does not perform a garbage collection.
   MUST_USE_RESULT MaybeObject* AllocatePropertyCell(Object* value);
 
   // Allocate Box.
   MUST_USE_RESULT MaybeObject* AllocateBox(Object* value,
                                            PretenureFlag pretenure);
 
+  // Allocate a tenured AllocationSite. It's payload is null
+  MUST_USE_RESULT MaybeObject* AllocateAllocationSite();
+
   // Allocates a fixed array initialized with undefined values
   // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation
   // failed.
   // Please note this does not perform a garbage collection.
   MUST_USE_RESULT MaybeObject* AllocateFixedArray(int length,
                                                   PretenureFlag pretenure);
   // Allocates a fixed array initialized with undefined values
   MUST_USE_RESULT MaybeObject* AllocateFixedArray(int length);
 
   // Allocates an uninitialized fixed array. It must be filled by the caller.
@@ skipping 837 matching lines @@
 
   inline bool OldGenerationAllocationLimitReached();
 
   inline void DoScavengeObject(Map* map, HeapObject** slot, HeapObject* obj) {
     scavenging_visitors_table_.GetVisitor(map)(map, slot, obj);
   }
 
   void QueueMemoryChunkForFree(MemoryChunk* chunk);
   void FreeQueuedChunks();
 
+  int gc_count() const { return gc_count_; }
+
   // Completely clear the Instanceof cache (to stop it keeping objects alive
   // around a GC).
   inline void CompletelyClearInstanceofCache();
 
   // The roots that have an index less than this are always in old space.
   static const int kOldSpaceRoots = 0x20;
 
   uint32_t HashSeed() {
     uint32_t seed = static_cast<uint32_t>(hash_seed()->value());
     ASSERT(FLAG_randomize_hashes || seed == 0);
@@ skipping 123 matching lines @@
 
   // For keeping track of context disposals.
   int contexts_disposed_;
 
   int global_ic_age_;
 
   bool flush_monomorphic_ics_;
 
   int scan_on_scavenge_pages_;
 
-#if defined(V8_TARGET_ARCH_X64)
+#if V8_TARGET_ARCH_X64
   static const int kMaxObjectSizeInNewSpace = 1024*KB;
 #else
   static const int kMaxObjectSizeInNewSpace = 512*KB;
 #endif
 
   NewSpace new_space_;
   OldSpace* old_pointer_space_;
   OldSpace* old_data_space_;
   OldSpace* code_space_;
   MapSpace* map_space_;
@@ skipping 180 matching lines @@
                                              Object* to_number,
                                              byte kind);
 
   // Allocate a JSArray with no elements
   MUST_USE_RESULT MaybeObject* AllocateJSArray(
       ElementsKind elements_kind,
       PretenureFlag pretenure = NOT_TENURED);
 
   MUST_USE_RESULT MaybeObject* AllocateJSArrayWithAllocationSite(
       ElementsKind elements_kind,
-      Handle<Object> allocation_site_info_payload);
+      Handle<AllocationSite> allocation_site);
 
   // Allocate empty fixed array.
   MUST_USE_RESULT MaybeObject* AllocateEmptyFixedArray();
 
   // Allocate empty external array of given type.
   MUST_USE_RESULT MaybeObject* AllocateEmptyExternalArray(
       ExternalArrayType array_type);
 
   // Allocate empty fixed double array.
   MUST_USE_RESULT MaybeObject* AllocateEmptyFixedDoubleArray();
@@ skipping 775 matching lines @@
     // For evaluating value.
     friend class TranscendentalCache;
 
     DISALLOW_COPY_AND_ASSIGN(SubCache);
   };
 
   TranscendentalCache() {
     for (int i = 0; i < kNumberOfCaches; ++i) caches_[i] = NULL;
   }
 
+  ~TranscendentalCache() {
+    for (int i = 0; i < kNumberOfCaches; ++i) delete caches_[i];
+  }
+
   // Used to create an external reference.
   inline Address cache_array_address();
 
   // Instantiation
   friend class Isolate;
   // Inline implementation of the caching.
   friend class TranscendentalCacheStub;
   // Allow access to the caches_ array as an ExternalReference.
   friend class ExternalReference;
 
@@ skipping 109 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_