[objects] Remove uncached internal external string type

We shouldn't be creating those anymore since they are not thread-safe. Bug: v8:7790 Change-Id: I4546d995fa32eb076c8dfe9d95301fad719c9e07 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2615347 Reviewed-by: Ross McIlroy <[email protected]> Reviewed-by: Leszek Swirski <[email protected]> Commit-Queue: Santiago Aboy Solanes <[email protected]> Cr-Commit-Position: refs/heads/master@{#72006}
zhaoleipeng · Jan 11, 2021 · b3d0900 · b3d0900
1 parent bfab480
commit b3d0900
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Showing 8 changed files with 98 additions and 126 deletions.
diff --git a/src/compiler/types.cc b/src/compiler/types.cc
@@ -153,8 +153,6 @@ Type::bitset BitsetType::Lub(const MapRefLike& map) {
       return kString;
     case EXTERNAL_INTERNALIZED_STRING_TYPE:
     case EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE:
-    case UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE:
-    case UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE:
     case INTERNALIZED_STRING_TYPE:
     case ONE_BYTE_INTERNALIZED_STRING_TYPE:
       return kInternalizedString;

diff --git a/src/diagnostics/objects-printer.cc b/src/diagnostics/objects-printer.cc
@@ -232,8 +232,6 @@ void HeapObject::HeapObjectPrint(std::ostream& os) {  // NOLINT
     case EXTERNAL_INTERNALIZED_STRING_TYPE:
     case ONE_BYTE_INTERNALIZED_STRING_TYPE:
     case EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE:
-    case UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE:
-    case UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE:
     case STRING_TYPE:
     case CONS_STRING_TYPE:
     case EXTERNAL_STRING_TYPE:

diff --git a/src/objects/instance-type.h b/src/objects/instance-type.h
@@ -87,12 +87,6 @@ enum InstanceType : uint16_t {
       kTwoByteStringTag | kExternalStringTag | kInternalizedTag,
   EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE =
       kOneByteStringTag | kExternalStringTag | kInternalizedTag,
-  UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE =
-      EXTERNAL_INTERNALIZED_STRING_TYPE | kUncachedExternalStringTag |
-      kInternalizedTag,
-  UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE =
-      EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE | kUncachedExternalStringTag |
-      kInternalizedTag,
   STRING_TYPE = INTERNALIZED_STRING_TYPE | kNotInternalizedTag,
   ONE_BYTE_STRING_TYPE =
       ONE_BYTE_INTERNALIZED_STRING_TYPE | kNotInternalizedTag,
@@ -107,10 +101,12 @@ enum InstanceType : uint16_t {
       EXTERNAL_INTERNALIZED_STRING_TYPE | kNotInternalizedTag,
   EXTERNAL_ONE_BYTE_STRING_TYPE =
       EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE | kNotInternalizedTag,
-  UNCACHED_EXTERNAL_STRING_TYPE =
-      UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE | kNotInternalizedTag,
+  UNCACHED_EXTERNAL_STRING_TYPE = kTwoByteStringTag | kExternalStringTag |
+                                  kUncachedExternalStringTag |
+                                  kNotInternalizedTag,
   UNCACHED_EXTERNAL_ONE_BYTE_STRING_TYPE =
-      UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE | kNotInternalizedTag,
+      kOneByteStringTag | kExternalStringTag | kUncachedExternalStringTag |
+      kNotInternalizedTag,
   THIN_STRING_TYPE = kTwoByteStringTag | kThinStringTag | kNotInternalizedTag,
   THIN_ONE_BYTE_STRING_TYPE =
       kOneByteStringTag | kThinStringTag | kNotInternalizedTag,

diff --git a/src/objects/objects-definitions.h b/src/objects/objects-definitions.h
@@ -36,8 +36,6 @@ namespace internal {
   V(EXTERNAL_INTERNALIZED_STRING_TYPE)                   \
   V(ONE_BYTE_INTERNALIZED_STRING_TYPE)                   \
   V(EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE)          \
-  V(UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE)          \
-  V(UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE) \
   V(STRING_TYPE)                                         \
   V(CONS_STRING_TYPE)                                    \
   V(EXTERNAL_STRING_TYPE)                                \
@@ -85,13 +83,6 @@ namespace internal {
     external_internalized_string, ExternalInternalizedString)                  \
   V(EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE, ExternalOneByteString::kSize,  \
     external_one_byte_internalized_string, ExternalOneByteInternalizedString)  \
-  V(UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE,                                \
-    ExternalTwoByteString::kUncachedSize,                                      \
-    uncached_external_internalized_string, UncachedExternalInternalizedString) \
-  V(UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE,                       \
-    ExternalOneByteString::kUncachedSize,                                      \
-    uncached_external_one_byte_internalized_string,                            \
-    UncachedExternalOneByteInternalizedString)                                 \
   V(THIN_STRING_TYPE, ThinString::kSize, thin_string, ThinString)              \
   V(THIN_ONE_BYTE_STRING_TYPE, ThinString::kSize, thin_one_byte_string,        \
     ThinOneByteString)

diff --git a/src/roots/roots.h b/src/roots/roots.h
@@ -129,10 +129,6 @@ class Symbol;
   V(Map, external_internalized_string_map, ExternalInternalizedStringMap)      \
   V(Map, external_one_byte_internalized_string_map,                            \
     ExternalOneByteInternalizedStringMap)                                      \
-  V(Map, uncached_external_internalized_string_map,                            \
-    UncachedExternalInternalizedStringMap)                                     \
-  V(Map, uncached_external_one_byte_internalized_string_map,                   \
-    UncachedExternalOneByteInternalizedStringMap)                              \
   V(Map, uncached_external_one_byte_string_map,                                \
     UncachedExternalOneByteStringMap)                                          \
   /* Oddball maps */                                                           \

diff --git a/test/cctest/test-strings.cc b/test/cctest/test-strings.cc
@@ -2142,7 +2142,6 @@ TEST(InternalizeExternalStringUncachedWithCopyTwoByte) {
   CHECK(external->is_uncached());
 
   // Internalize succesfully, with a copy.
-  CHECK(!external->IsInternalizedString());
   Handle<String> internal = factory->InternalizeString(external);
   CHECK(!external->IsInternalizedString());
   CHECK(internal->IsInternalizedString());

diff --git a/tools/heap-stats/categories.js b/tools/heap-stats/categories.js
@@ -94,8 +94,6 @@ export const CATEGORIES = new Map([
       'SYMBOL_TYPE',
       'THIN_ONE_BYTE_STRING_TYPE',
       'THIN_STRING_TYPE',
-      'UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE',
-      'UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE',
       'UNCACHED_EXTERNAL_ONE_BYTE_STRING_TYPE',
       'UNCACHED_EXTERNAL_STRING_TYPE',
       'WASM_INSTANCE_OBJECT_TYPE',

diff --git a/tools/v8heapconst.py b/tools/v8heapconst.py
@@ -11,8 +11,6 @@
   2: "EXTERNAL_INTERNALIZED_STRING_TYPE",
   8: "ONE_BYTE_INTERNALIZED_STRING_TYPE",
   10: "EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE",
-  18: "UNCACHED_EXTERNAL_INTERNALIZED_STRING_TYPE",
-  26: "UNCACHED_EXTERNAL_ONE_BYTE_INTERNALIZED_STRING_TYPE",
   32: "STRING_TYPE",
   33: "CONS_STRING_TYPE",
   34: "EXTERNAL_STRING_TYPE",
@@ -298,75 +296,73 @@
   ("read_only_space", 0x03035): (0, "InternalizedStringMap"),
   ("read_only_space", 0x0305d): (2, "ExternalInternalizedStringMap"),
   ("read_only_space", 0x03085): (10, "ExternalOneByteInternalizedStringMap"),
-  ("read_only_space", 0x030ad): (18, "UncachedExternalInternalizedStringMap"),
-  ("read_only_space", 0x030d5): (26, "UncachedExternalOneByteInternalizedStringMap"),
-  ("read_only_space", 0x030fd): (58, "UncachedExternalOneByteStringMap"),
-  ("read_only_space", 0x03125): (67, "SelfReferenceMarkerMap"),
-  ("read_only_space", 0x0314d): (67, "BasicBlockCountersMarkerMap"),
-  ("read_only_space", 0x03191): (87, "ArrayBoilerplateDescriptionMap"),
-  ("read_only_space", 0x03279): (99, "InterceptorInfoMap"),
-  ("read_only_space", 0x053a5): (72, "PromiseFulfillReactionJobTaskMap"),
-  ("read_only_space", 0x053cd): (73, "PromiseRejectReactionJobTaskMap"),
-  ("read_only_space", 0x053f5): (74, "CallableTaskMap"),
-  ("read_only_space", 0x0541d): (75, "CallbackTaskMap"),
-  ("read_only_space", 0x05445): (76, "PromiseResolveThenableJobTaskMap"),
-  ("read_only_space", 0x0546d): (79, "FunctionTemplateInfoMap"),
-  ("read_only_space", 0x05495): (80, "ObjectTemplateInfoMap"),
-  ("read_only_space", 0x054bd): (81, "AccessCheckInfoMap"),
-  ("read_only_space", 0x054e5): (82, "AccessorInfoMap"),
-  ("read_only_space", 0x0550d): (83, "AccessorPairMap"),
-  ("read_only_space", 0x05535): (84, "AliasedArgumentsEntryMap"),
-  ("read_only_space", 0x0555d): (85, "AllocationMementoMap"),
-  ("read_only_space", 0x05585): (88, "AsmWasmDataMap"),
-  ("read_only_space", 0x055ad): (89, "AsyncGeneratorRequestMap"),
-  ("read_only_space", 0x055d5): (90, "BreakPointMap"),
-  ("read_only_space", 0x055fd): (91, "BreakPointInfoMap"),
-  ("read_only_space", 0x05625): (92, "CachedTemplateObjectMap"),
-  ("read_only_space", 0x0564d): (94, "ClassPositionsMap"),
-  ("read_only_space", 0x05675): (95, "DebugInfoMap"),
-  ("read_only_space", 0x0569d): (98, "FunctionTemplateRareDataMap"),
-  ("read_only_space", 0x056c5): (100, "InterpreterDataMap"),
-  ("read_only_space", 0x056ed): (101, "ModuleRequestMap"),
-  ("read_only_space", 0x05715): (102, "PromiseCapabilityMap"),
-  ("read_only_space", 0x0573d): (103, "PromiseReactionMap"),
-  ("read_only_space", 0x05765): (104, "PropertyDescriptorObjectMap"),
-  ("read_only_space", 0x0578d): (105, "PrototypeInfoMap"),
-  ("read_only_space", 0x057b5): (106, "ScriptMap"),
-  ("read_only_space", 0x057dd): (107, "SourceTextModuleInfoEntryMap"),
-  ("read_only_space", 0x05805): (108, "StackFrameInfoMap"),
-  ("read_only_space", 0x0582d): (109, "StackTraceFrameMap"),
-  ("read_only_space", 0x05855): (110, "TemplateObjectDescriptionMap"),
-  ("read_only_space", 0x0587d): (111, "Tuple2Map"),
-  ("read_only_space", 0x058a5): (112, "WasmExceptionTagMap"),
-  ("read_only_space", 0x058cd): (113, "WasmExportedFunctionDataMap"),
-  ("read_only_space", 0x058f5): (114, "WasmIndirectFunctionTableMap"),
-  ("read_only_space", 0x0591d): (115, "WasmJSFunctionDataMap"),
-  ("read_only_space", 0x05945): (134, "SloppyArgumentsElementsMap"),
-  ("read_only_space", 0x0596d): (151, "DescriptorArrayMap"),
-  ("read_only_space", 0x05995): (156, "UncompiledDataWithoutPreparseDataMap"),
-  ("read_only_space", 0x059bd): (155, "UncompiledDataWithPreparseDataMap"),
-  ("read_only_space", 0x059e5): (171, "OnHeapBasicBlockProfilerDataMap"),
-  ("read_only_space", 0x05a0d): (180, "WasmCapiFunctionDataMap"),
-  ("read_only_space", 0x05a35): (168, "InternalClassMap"),
-  ("read_only_space", 0x05a5d): (177, "SmiPairMap"),
-  ("read_only_space", 0x05a85): (176, "SmiBoxMap"),
-  ("read_only_space", 0x05aad): (145, "ExportedSubClassBaseMap"),
-  ("read_only_space", 0x05ad5): (146, "ExportedSubClassMap"),
-  ("read_only_space", 0x05afd): (68, "AbstractInternalClassSubclass1Map"),
-  ("read_only_space", 0x05b25): (69, "AbstractInternalClassSubclass2Map"),
-  ("read_only_space", 0x05b4d): (133, "InternalClassWithSmiElementsMap"),
-  ("read_only_space", 0x05b75): (169, "InternalClassWithStructElementsMap"),
-  ("read_only_space", 0x05b9d): (147, "ExportedSubClass2Map"),
-  ("read_only_space", 0x05bc5): (178, "SortStateMap"),
-  ("read_only_space", 0x05bed): (86, "AllocationSiteWithWeakNextMap"),
-  ("read_only_space", 0x05c15): (86, "AllocationSiteWithoutWeakNextMap"),
-  ("read_only_space", 0x05c3d): (77, "LoadHandler1Map"),
-  ("read_only_space", 0x05c65): (77, "LoadHandler2Map"),
-  ("read_only_space", 0x05c8d): (77, "LoadHandler3Map"),
-  ("read_only_space", 0x05cb5): (78, "StoreHandler0Map"),
-  ("read_only_space", 0x05cdd): (78, "StoreHandler1Map"),
-  ("read_only_space", 0x05d05): (78, "StoreHandler2Map"),
-  ("read_only_space", 0x05d2d): (78, "StoreHandler3Map"),
+  ("read_only_space", 0x030ad): (58, "UncachedExternalOneByteStringMap"),
+  ("read_only_space", 0x030d5): (67, "SelfReferenceMarkerMap"),
+  ("read_only_space", 0x030fd): (67, "BasicBlockCountersMarkerMap"),
+  ("read_only_space", 0x03141): (87, "ArrayBoilerplateDescriptionMap"),
+  ("read_only_space", 0x03229): (99, "InterceptorInfoMap"),
+  ("read_only_space", 0x05355): (72, "PromiseFulfillReactionJobTaskMap"),
+  ("read_only_space", 0x0537d): (73, "PromiseRejectReactionJobTaskMap"),
+  ("read_only_space", 0x053a5): (74, "CallableTaskMap"),
+  ("read_only_space", 0x053cd): (75, "CallbackTaskMap"),
+  ("read_only_space", 0x053f5): (76, "PromiseResolveThenableJobTaskMap"),
+  ("read_only_space", 0x0541d): (79, "FunctionTemplateInfoMap"),
+  ("read_only_space", 0x05445): (80, "ObjectTemplateInfoMap"),
+  ("read_only_space", 0x0546d): (81, "AccessCheckInfoMap"),
+  ("read_only_space", 0x05495): (82, "AccessorInfoMap"),
+  ("read_only_space", 0x054bd): (83, "AccessorPairMap"),
+  ("read_only_space", 0x054e5): (84, "AliasedArgumentsEntryMap"),
+  ("read_only_space", 0x0550d): (85, "AllocationMementoMap"),
+  ("read_only_space", 0x05535): (88, "AsmWasmDataMap"),
+  ("read_only_space", 0x0555d): (89, "AsyncGeneratorRequestMap"),
+  ("read_only_space", 0x05585): (90, "BreakPointMap"),
+  ("read_only_space", 0x055ad): (91, "BreakPointInfoMap"),
+  ("read_only_space", 0x055d5): (92, "CachedTemplateObjectMap"),
+  ("read_only_space", 0x055fd): (94, "ClassPositionsMap"),
+  ("read_only_space", 0x05625): (95, "DebugInfoMap"),
+  ("read_only_space", 0x0564d): (98, "FunctionTemplateRareDataMap"),
+  ("read_only_space", 0x05675): (100, "InterpreterDataMap"),
+  ("read_only_space", 0x0569d): (101, "ModuleRequestMap"),
+  ("read_only_space", 0x056c5): (102, "PromiseCapabilityMap"),
+  ("read_only_space", 0x056ed): (103, "PromiseReactionMap"),
+  ("read_only_space", 0x05715): (104, "PropertyDescriptorObjectMap"),
+  ("read_only_space", 0x0573d): (105, "PrototypeInfoMap"),
+  ("read_only_space", 0x05765): (106, "ScriptMap"),
+  ("read_only_space", 0x0578d): (107, "SourceTextModuleInfoEntryMap"),
+  ("read_only_space", 0x057b5): (108, "StackFrameInfoMap"),
+  ("read_only_space", 0x057dd): (109, "StackTraceFrameMap"),
+  ("read_only_space", 0x05805): (110, "TemplateObjectDescriptionMap"),
+  ("read_only_space", 0x0582d): (111, "Tuple2Map"),
+  ("read_only_space", 0x05855): (112, "WasmExceptionTagMap"),
+  ("read_only_space", 0x0587d): (113, "WasmExportedFunctionDataMap"),
+  ("read_only_space", 0x058a5): (114, "WasmIndirectFunctionTableMap"),
+  ("read_only_space", 0x058cd): (115, "WasmJSFunctionDataMap"),
+  ("read_only_space", 0x058f5): (134, "SloppyArgumentsElementsMap"),
+  ("read_only_space", 0x0591d): (151, "DescriptorArrayMap"),
+  ("read_only_space", 0x05945): (156, "UncompiledDataWithoutPreparseDataMap"),
+  ("read_only_space", 0x0596d): (155, "UncompiledDataWithPreparseDataMap"),
+  ("read_only_space", 0x05995): (171, "OnHeapBasicBlockProfilerDataMap"),
+  ("read_only_space", 0x059bd): (180, "WasmCapiFunctionDataMap"),
+  ("read_only_space", 0x059e5): (168, "InternalClassMap"),
+  ("read_only_space", 0x05a0d): (177, "SmiPairMap"),
+  ("read_only_space", 0x05a35): (176, "SmiBoxMap"),
+  ("read_only_space", 0x05a5d): (145, "ExportedSubClassBaseMap"),
+  ("read_only_space", 0x05a85): (146, "ExportedSubClassMap"),
+  ("read_only_space", 0x05aad): (68, "AbstractInternalClassSubclass1Map"),
+  ("read_only_space", 0x05ad5): (69, "AbstractInternalClassSubclass2Map"),
+  ("read_only_space", 0x05afd): (133, "InternalClassWithSmiElementsMap"),
+  ("read_only_space", 0x05b25): (169, "InternalClassWithStructElementsMap"),
+  ("read_only_space", 0x05b4d): (147, "ExportedSubClass2Map"),
+  ("read_only_space", 0x05b75): (178, "SortStateMap"),
+  ("read_only_space", 0x05b9d): (86, "AllocationSiteWithWeakNextMap"),
+  ("read_only_space", 0x05bc5): (86, "AllocationSiteWithoutWeakNextMap"),
+  ("read_only_space", 0x05bed): (77, "LoadHandler1Map"),
+  ("read_only_space", 0x05c15): (77, "LoadHandler2Map"),
+  ("read_only_space", 0x05c3d): (77, "LoadHandler3Map"),
+  ("read_only_space", 0x05c65): (78, "StoreHandler0Map"),
+  ("read_only_space", 0x05c8d): (78, "StoreHandler1Map"),
+  ("read_only_space", 0x05cb5): (78, "StoreHandler2Map"),
+  ("read_only_space", 0x05cdd): (78, "StoreHandler3Map"),
   ("map_space", 0x02115): (1057, "ExternalMap"),
   ("map_space", 0x0213d): (1084, "JSMessageObjectMap"),
   ("map_space", 0x02165): (181, "WasmRttEqrefMap"),
@@ -397,32 +393,32 @@
   ("read_only_space", 0x0282d): "TerminationException",
   ("read_only_space", 0x02895): "OptimizedOut",
   ("read_only_space", 0x028f5): "StaleRegister",
-  ("read_only_space", 0x03175): "EmptyPropertyArray",
-  ("read_only_space", 0x0317d): "EmptyByteArray",
-  ("read_only_space", 0x03185): "EmptyObjectBoilerplateDescription",
-  ("read_only_space", 0x031b9): "EmptyArrayBoilerplateDescription",
-  ("read_only_space", 0x031c5): "EmptyClosureFeedbackCellArray",
-  ("read_only_space", 0x031cd): "EmptySlowElementDictionary",
-  ("read_only_space", 0x031f1): "EmptyOrderedHashMap",
-  ("read_only_space", 0x03205): "EmptyOrderedHashSet",
-  ("read_only_space", 0x03219): "EmptyFeedbackMetadata",
-  ("read_only_space", 0x03225): "EmptyPropertyCell",
-  ("read_only_space", 0x03239): "EmptyPropertyDictionary",
-  ("read_only_space", 0x03261): "EmptyOrderedPropertyDictionary",
-  ("read_only_space", 0x032a1): "NoOpInterceptorInfo",
-  ("read_only_space", 0x032c9): "EmptyWeakArrayList",
-  ("read_only_space", 0x032d5): "InfinityValue",
-  ("read_only_space", 0x032e1): "MinusZeroValue",
-  ("read_only_space", 0x032ed): "MinusInfinityValue",
-  ("read_only_space", 0x032f9): "SelfReferenceMarker",
-  ("read_only_space", 0x03339): "BasicBlockCountersMarker",
-  ("read_only_space", 0x0337d): "OffHeapTrampolineRelocationInfo",
-  ("read_only_space", 0x03389): "TrampolineTrivialCodeDataContainer",
-  ("read_only_space", 0x03395): "TrampolinePromiseRejectionCodeDataContainer",
-  ("read_only_space", 0x033a1): "GlobalThisBindingScopeInfo",
-  ("read_only_space", 0x033d9): "EmptyFunctionScopeInfo",
-  ("read_only_space", 0x03401): "NativeScopeInfo",
-  ("read_only_space", 0x0341d): "HashSeed",
+  ("read_only_space", 0x03125): "EmptyPropertyArray",
+  ("read_only_space", 0x0312d): "EmptyByteArray",
+  ("read_only_space", 0x03135): "EmptyObjectBoilerplateDescription",
+  ("read_only_space", 0x03169): "EmptyArrayBoilerplateDescription",
+  ("read_only_space", 0x03175): "EmptyClosureFeedbackCellArray",
+  ("read_only_space", 0x0317d): "EmptySlowElementDictionary",
+  ("read_only_space", 0x031a1): "EmptyOrderedHashMap",
+  ("read_only_space", 0x031b5): "EmptyOrderedHashSet",
+  ("read_only_space", 0x031c9): "EmptyFeedbackMetadata",
+  ("read_only_space", 0x031d5): "EmptyPropertyCell",
+  ("read_only_space", 0x031e9): "EmptyPropertyDictionary",
+  ("read_only_space", 0x03211): "EmptyOrderedPropertyDictionary",
+  ("read_only_space", 0x03251): "NoOpInterceptorInfo",
+  ("read_only_space", 0x03279): "EmptyWeakArrayList",
+  ("read_only_space", 0x03285): "InfinityValue",
+  ("read_only_space", 0x03291): "MinusZeroValue",
+  ("read_only_space", 0x0329d): "MinusInfinityValue",
+  ("read_only_space", 0x032a9): "SelfReferenceMarker",
+  ("read_only_space", 0x032e9): "BasicBlockCountersMarker",
+  ("read_only_space", 0x0332d): "OffHeapTrampolineRelocationInfo",
+  ("read_only_space", 0x03339): "TrampolineTrivialCodeDataContainer",
+  ("read_only_space", 0x03345): "TrampolinePromiseRejectionCodeDataContainer",
+  ("read_only_space", 0x03351): "GlobalThisBindingScopeInfo",
+  ("read_only_space", 0x03389): "EmptyFunctionScopeInfo",
+  ("read_only_space", 0x033b1): "NativeScopeInfo",
+  ("read_only_space", 0x033cd): "HashSeed",
   ("old_space", 0x02115): "ArgumentsIteratorAccessor",
   ("old_space", 0x02159): "ArrayLengthAccessor",
   ("old_space", 0x0219d): "BoundFunctionLengthAccessor",