deps: update V8 to 5.7.492.69

PR-URL: https://github.com/nodejs/node/pull/11752
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>

1 files changed, 59 insertions, 34 deletions

diff --git a/deps/v8/src/isolate.h b/deps/v8/src/isolate.h
index 87bc45bb51..6bbc0fc343 100644
--- a/deps/v8/src/isolate.h
+++ b/deps/v8/src/isolate.h
@@ -35,6 +35,7 @@ namespace internal {
 
 class AccessCompilerData;
 class AddressToIndexHashMap;
+class AstStringConstants;
 class BasicBlockProfiler;
 class Bootstrapper;
 class CancelableTaskManager;
@@ -46,7 +47,7 @@ class CodeRange;
 class CodeStubDescriptor;
 class CodeTracer;
 class CompilationCache;
-class CompilerDispatcherTracer;
+class CompilerDispatcher;
 class CompilationStatistics;
 class ContextSlotCache;
 class Counters;
@@ -250,7 +251,7 @@ class ThreadId {
 
   static int AllocateThreadId();
 
-  static int GetCurrentThreadId();
+  V8_EXPORT_PRIVATE static int GetCurrentThreadId();
 
   base::Atomic32 id_;
 
@@ -383,7 +384,6 @@ class ThreadLocalTop BASE_EMBEDDED {
   V(int, bad_char_shift_table, kUC16AlphabetSize)                              \
   V(int, good_suffix_shift_table, (kBMMaxShift + 1))                           \
   V(int, suffix_table, (kBMMaxShift + 1))                                      \
-  V(uint32_t, private_random_seed, 2)                                          \
   ISOLATE_INIT_DEBUG_ARRAY_LIST(V)
 
 typedef List<HeapObject*> DebugObjectCache;
@@ -394,6 +394,8 @@ typedef List<HeapObject*> DebugObjectCache;
   V(OOMErrorCallback, oom_behavior, nullptr)                                  \
   V(LogEventCallback, event_logger, nullptr)                                  \
   V(AllowCodeGenerationFromStringsCallback, allow_code_gen_callback, nullptr) \
+  V(AllowWasmCompileCallback, allow_wasm_compile_callback, nullptr)           \
+  V(AllowWasmInstantiateCallback, allow_wasm_instantiate_callback, nullptr)   \
   V(ExternalReferenceRedirectorPointer*, external_reference_redirector,       \
     nullptr)                                                                  \
   /* State for Relocatable. */                                                \
@@ -404,15 +406,11 @@ typedef List<HeapObject*> DebugObjectCache;
   V(intptr_t*, api_external_references, nullptr)                              \
   V(AddressToIndexHashMap*, external_reference_map, nullptr)                  \
   V(HeapObjectToIndexHashMap*, root_index_map, nullptr)                       \
-  V(v8::DeserializeInternalFieldsCallback,                                    \
-    deserialize_internal_fields_callback, nullptr)                            \
   V(int, pending_microtask_count, 0)                                          \
-  V(int, debug_microtask_count, 0)                                            \
   V(HStatistics*, hstatistics, nullptr)                                       \
   V(CompilationStatistics*, turbo_statistics, nullptr)                        \
   V(HTracer*, htracer, nullptr)                                               \
   V(CodeTracer*, code_tracer, nullptr)                                        \
-  V(bool, fp_stubs_generated, false)                                          \
   V(uint32_t, per_isolate_assert_data, 0xFFFFFFFFu)                           \
   V(PromiseRejectCallback, promise_reject_callback, nullptr)                  \
   V(const v8::StartupData*, snapshot_blob, nullptr)                           \
@@ -422,6 +420,8 @@ typedef List<HeapObject*> DebugObjectCache;
   V(bool, is_profiling, false)                                                \
   /* true if a trace is being formatted through Error.prepareStackTrace. */   \
   V(bool, formatting_stack_trace, false)                                      \
+  /* Perform side effect checks on function call and API callbacks. */        \
+  V(bool, needs_side_effect_check, false)                                     \
   ISOLATE_INIT_SIMULATOR_LIST(V)
 
 #define THREAD_LOCAL_TOP_ACCESSOR(type, name)                        \
@@ -765,7 +765,9 @@ class Isolate {
   Object* PromoteScheduledException();
 
   // Attempts to compute the current source location, storing the
-  // result in the target out parameter.
+  // result in the target out parameter. The source location is attached to a
+  // Message object as the location which should be shown to the user. It's
+  // typically the top-most meaningful location on the stack.
   bool ComputeLocation(MessageLocation* target);
   bool ComputeLocationFromException(MessageLocation* target,
                                     Handle<Object> exception);
@@ -905,12 +907,6 @@ class Isolate {
 
   Builtins* builtins() { return &builtins_; }
 
-  void NotifyExtensionInstalled() {
-    has_installed_extensions_ = true;
-  }
-
-  bool has_installed_extensions() { return has_installed_extensions_; }
-
   unibrow::Mapping<unibrow::Ecma262Canonicalize>*
       regexp_macro_assembler_canonicalize() {
     return &regexp_macro_assembler_canonicalize_;
@@ -970,6 +966,8 @@ class Isolate {
 
   bool initialized_from_snapshot() { return initialized_from_snapshot_; }
 
+  bool NeedsSourcePositionsForProfiling() const;
+
   double time_millis_since_init() {
     return heap_.MonotonicallyIncreasingTimeInMs() - time_millis_at_init_;
   }
@@ -1001,6 +999,9 @@ class Isolate {
   // Avoid deopt loops if fast Array Iterators migrate to slow Array Iterators.
   inline bool IsFastArrayIterationIntact();
 
+  // Make sure we do check for neutered array buffers.
+  inline bool IsArrayBufferNeuteringIntact();
+
   // On intent to set an element in object, make sure that appropriate
   // notifications occur if the set is on the elements of the array or
   // object prototype. Also ensure that changes to prototype chain between
@@ -1020,11 +1021,13 @@ class Isolate {
   void InvalidateIsConcatSpreadableProtector();
   void InvalidateStringLengthOverflowProtector();
   void InvalidateArrayIteratorProtector();
+  void InvalidateArrayBufferNeuteringProtector();
 
   // Returns true if array is the initial array prototype in any native context.
   bool IsAnyInitialArrayPrototype(Handle<JSArray> array);
 
-  CallInterfaceDescriptorData* call_descriptor_data(int index);
+  V8_EXPORT_PRIVATE CallInterfaceDescriptorData* call_descriptor_data(
+      int index);
 
   AccessCompilerData* access_compiler_data() { return access_compiler_data_; }
 
@@ -1070,7 +1073,7 @@ class Isolate {
   int GenerateIdentityHash(uint32_t mask);
 
   // Given an address occupied by a live code object, return that object.
-  Object* FindCodeObject(Address a);
+  Code* FindCodeObject(Address a);
 
   int NextOptimizationId() {
     int id = next_optimization_id_++;
@@ -1080,9 +1083,6 @@ class Isolate {
     return id;
   }
 
-  // Get (and lazily initialize) the registry for per-isolate symbols.
-  Handle<JSObject> GetSymbolRegistry();
-
   void AddCallCompletedCallback(CallCompletedCallback callback);
   void RemoveCallCompletedCallback(CallCompletedCallback callback);
   void FireCallCompletedCallback();
@@ -1108,7 +1108,9 @@ class Isolate {
   void EnqueueMicrotask(Handle<Object> microtask);
   void RunMicrotasks();
   bool IsRunningMicrotasks() const { return is_running_microtasks_; }
-  int GetNextDebugMicrotaskId() { return debug_microtask_count_++; }
+
+  Handle<Symbol> SymbolFor(Heap::RootListIndex dictionary_index,
+                           Handle<String> name, bool private_symbol);
 
   void SetUseCounterCallback(v8::Isolate::UseCounterCallback callback);
   void CountUsage(v8::Isolate::UseCounterFeature feature);
@@ -1122,6 +1124,13 @@ class Isolate {
   int GetNextUniqueSharedFunctionInfoId() { return next_unique_sfi_id_++; }
 #endif
 
+  Address promise_hook_address() {
+    return reinterpret_cast<Address>(&promise_hook_);
+  }
+  void SetPromiseHook(PromiseHook hook);
+  void RunPromiseHook(PromiseHookType type, Handle<JSPromise> promise,
+                      Handle<Object> parent);
+
   // Support for dynamically disabling tail call elimination.
   Address is_tail_call_elimination_enabled_address() {
     return reinterpret_cast<Address>(&is_tail_call_elimination_enabled_);
@@ -1149,18 +1158,32 @@ class Isolate {
     return cancelable_task_manager_;
   }
 
+  AstStringConstants* ast_string_constants() const {
+    return ast_string_constants_;
+  }
+
   interpreter::Interpreter* interpreter() const { return interpreter_; }
 
   AccountingAllocator* allocator() { return allocator_; }
 
-  CompilerDispatcherTracer* compiler_dispatcher_tracer() const {
-    return compiler_dispatcher_tracer_;
+  CompilerDispatcher* compiler_dispatcher() const {
+    return compiler_dispatcher_;
   }
 
+  // Clear all optimized code stored in native contexts.
+  void ClearOSROptimizedCode();
+
+  // Ensure that a particular optimized code is evicted.
+  void EvictOSROptimizedCode(Code* code, const char* reason);
+
   bool IsInAnyContext(Object* object, uint32_t index);
 
   void SetRAILMode(RAILMode rail_mode);
 
+  RAILMode rail_mode() { return rail_mode_.Value(); }
+
+  double LoadStartTimeMs();
+
   void IsolateInForegroundNotification();
 
   void IsolateInBackgroundNotification();
@@ -1180,8 +1203,6 @@ class Isolate {
  private:
   friend struct GlobalState;
   friend struct InitializeGlobalState;
-  Handle<JSObject> SetUpSubregistry(Handle<JSObject> registry, Handle<Map> map,
-                                    const char* name);
 
   // These fields are accessed through the API, offsets must be kept in sync
   // with v8::internal::Internals (in include/v8.h) constants. This is also
@@ -1337,7 +1358,6 @@ class Isolate {
   ThreadManager* thread_manager_;
   RuntimeState runtime_state_;
   Builtins builtins_;
-  bool has_installed_extensions_;
   unibrow::Mapping<unibrow::Ecma262UnCanonicalize> jsregexp_uncanonicalize_;
   unibrow::Mapping<unibrow::CanonicalizationRange> jsregexp_canonrange_;
   unibrow::Mapping<unibrow::Ecma262Canonicalize>
@@ -1349,6 +1369,9 @@ class Isolate {
   AccessCompilerData* access_compiler_data_;
   base::RandomNumberGenerator* random_number_generator_;
   base::AtomicValue<RAILMode> rail_mode_;
+  PromiseHook promise_hook_;
+  base::Mutex rail_mutex_;
+  double load_start_time_ms_;
 
   // Whether the isolate has been created for snapshotting.
   bool serializer_enabled_;
@@ -1381,9 +1404,11 @@ class Isolate {
   std::unique_ptr<CodeEventDispatcher> code_event_dispatcher_;
   FunctionEntryHook function_entry_hook_;
 
+  AstStringConstants* ast_string_constants_;
+
   interpreter::Interpreter* interpreter_;
 
-  CompilerDispatcherTracer* compiler_dispatcher_tracer_;
+  CompilerDispatcher* compiler_dispatcher_;
 
   typedef std::pair<InterruptCallback, void*> InterruptEntry;
   std::queue<InterruptEntry> api_interrupts_queue_;
@@ -1451,6 +1476,7 @@ class Isolate {
 
   friend class ExecutionAccess;
   friend class HandleScopeImplementer;
+  friend class HeapTester;
   friend class OptimizingCompileDispatcher;
   friend class SweeperThread;
   friend class ThreadManager;
@@ -1571,14 +1597,13 @@ class StackLimitCheck BASE_EMBEDDED {
   Isolate* isolate_;
 };
 
-#define STACK_CHECK(isolate, result_value)               \
-  do {                                                   \
-    StackLimitCheck stack_check(isolate);                \
-    if (stack_check.HasOverflowed()) {                   \
-      isolate->Throw(*isolate->factory()->NewRangeError( \
-          MessageTemplate::kStackOverflow));             \
-      return result_value;                               \
-    }                                                    \
+#define STACK_CHECK(isolate, result_value) \
+  do {                                     \
+    StackLimitCheck stack_check(isolate);  \
+    if (stack_check.HasOverflowed()) {     \
+      isolate->StackOverflow();            \
+      return result_value;                 \
+    }                                      \
   } while (false)
 
 // Support for temporarily postponing interrupts. When the outermost