From b9d806a2dd7d6b137cd9f0099ec0f8ed0abea4d6 Mon Sep 17 00:00:00 2001
From: StefanStojanovic <stefan.stojanovic@janeasystems.com>
Date: Wed, 31 Jan 2024 11:05:20 +0100
Subject: [PATCH] deps: patch V8 to support compilation with MSVC

This patches V8 v12.2 for Windows, by fixing multiple compilation
errors caused by V8 being a Clang-oriented project. There are various
types of errors fixed by this going from changing `using` directives
and renaming to overcoming the differences in which Clang and MSVC see
templates and metaprogramming.

The changes introduced here are strictly meant as a patch only, so they
shouldn't be pushed upstream.

Refs: https://github.com/targos/node/pull/13
Refs: https://github.com/targos/node/pull/14
PR-URL: https://github.com/nodejs/node/pull/51362
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
---
 common.gypi                                   |  2 +-
 .../src/builtins/builtins-collections-gen.cc  |  7 ++-
 deps/v8/src/codegen/code-stub-assembler.cc    |  2 +-
 deps/v8/src/compiler/turboshaft/assembler.h   |  6 +++
 ...de-elimination-and-simplification-phase.cc |  3 +-
 .../src/compiler/turboshaft/copying-phase.h   | 35 +++++++++----
 .../compiler/turboshaft/csa-optimize-phase.cc | 10 ++--
 .../debug-feature-lowering-phase.cc           |  2 +-
 .../turboshaft/int64-lowering-phase.cc        |  2 +-
 .../compiler/turboshaft/loop-peeling-phase.cc |  2 +-
 .../turboshaft/loop-unrolling-phase.cc        |  2 +-
 .../turboshaft/machine-lowering-phase.cc      |  4 +-
 .../turboshaft/machine-optimization-reducer.h | 50 ++++---------------
 .../src/compiler/turboshaft/optimize-phase.cc |  2 +-
 .../turboshaft/simplified-lowering-phase.cc   |  2 +-
 .../turboshaft/simplified-lowering-reducer.h  | 14 +++---
 .../store-store-elimination-phase.cc          |  2 +-
 .../turboshaft/type-assertions-phase.cc       |  5 +-
 .../turboshaft/typed-optimizations-phase.cc   |  3 +-
 .../wasm-dead-code-elimination-phase.cc       |  3 +-
 .../turboshaft/wasm-gc-optimize-phase.cc      |  2 +-
 .../turboshaft/wasm-lowering-phase.cc         |  2 +-
 .../turboshaft/wasm-optimize-phase.cc         |  2 +-
 .../compiler/turboshaft/wasm-revec-phase.cc   |  2 +-
 deps/v8/src/heap/heap.cc                      |  2 +-
 deps/v8/src/objects/dictionary.h              |  5 +-
 deps/v8/src/objects/fixed-array.h             | 20 +++++---
 deps/v8/src/objects/hash-table-inl.h          | 12 ++---
 deps/v8/src/objects/hash-table.h              | 11 ++--
 deps/v8/src/objects/objects.cc                | 42 ++++++++--------
 deps/v8/src/objects/template-objects.cc       |  2 +-
 31 files changed, 129 insertions(+), 131 deletions(-)

diff --git a/common.gypi b/common.gypi
index a5e5df78732e38..18f60c1435c6ef 100644
--- a/common.gypi
+++ b/common.gypi
@@ -37,7 +37,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.6',
+    'v8_embedder_string': '-node.7',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/builtins/builtins-collections-gen.cc b/deps/v8/src/builtins/builtins-collections-gen.cc
index e5e6026ce61632..6fea5c37e8c2f2 100644
--- a/deps/v8/src/builtins/builtins-collections-gen.cc
+++ b/deps/v8/src/builtins/builtins-collections-gen.cc
@@ -2782,10 +2782,9 @@ TNode<Word32T> WeakCollectionsBuiltinsAssembler::ShouldShrink(
 
 TNode<IntPtrT> WeakCollectionsBuiltinsAssembler::ValueIndexFromKeyIndex(
     TNode<IntPtrT> key_index) {
-  return IntPtrAdd(
-      key_index,
-      IntPtrConstant(EphemeronHashTable::TodoShape::kEntryValueIndex -
-                     EphemeronHashTable::kEntryKeyIndex));
+  return IntPtrAdd(key_index,
+                   IntPtrConstant(EphemeronHashTable::ShapeT::kEntryValueIndex -
+                                  EphemeronHashTable::kEntryKeyIndex));
 }
 
 TF_BUILTIN(WeakMapConstructor, WeakCollectionsBuiltinsAssembler) {
diff --git a/deps/v8/src/codegen/code-stub-assembler.cc b/deps/v8/src/codegen/code-stub-assembler.cc
index 170cf773d71c39..ec9f176f342d64 100644
--- a/deps/v8/src/codegen/code-stub-assembler.cc
+++ b/deps/v8/src/codegen/code-stub-assembler.cc
@@ -9455,7 +9455,7 @@ void CodeStubAssembler::NameDictionaryLookup(
         CAST(UnsafeLoadFixedArrayElement(dictionary, index));
     GotoIf(TaggedEqual(current, undefined), if_not_found);
     if (mode == kFindExisting) {
-      if (Dictionary::TodoShape::kMatchNeedsHoleCheck) {
+      if (Dictionary::ShapeT::kMatchNeedsHoleCheck) {
         GotoIf(TaggedEqual(current, TheHoleConstant()), &next_probe);
       }
       current = LoadName<Dictionary>(current);
diff --git a/deps/v8/src/compiler/turboshaft/assembler.h b/deps/v8/src/compiler/turboshaft/assembler.h
index 81a952bf580145..7a8149b4c92922 100644
--- a/deps/v8/src/compiler/turboshaft/assembler.h
+++ b/deps/v8/src/compiler/turboshaft/assembler.h
@@ -3934,8 +3934,14 @@ class TSAssembler
     : public Assembler<reducer_list<TurboshaftAssemblerOpInterface, Reducers...,
                                     TSReducerBase>> {
  public:
+#ifdef _WIN32
+  explicit TSAssembler(Graph& input_graph, Graph& output_graph,
+                       Zone* phase_zone)
+      : Assembler(input_graph, output_graph, phase_zone) {}
+#else
   using Assembler<reducer_list<TurboshaftAssemblerOpInterface, Reducers...,
                                TSReducerBase>>::Assembler;
+#endif
 };
 
 #include "src/compiler/turboshaft/undef-assembler-macros.inc"
diff --git a/deps/v8/src/compiler/turboshaft/code-elimination-and-simplification-phase.cc b/deps/v8/src/compiler/turboshaft/code-elimination-and-simplification-phase.cc
index 416d0da2ad3846..fcb579f6f62d7a 100644
--- a/deps/v8/src/compiler/turboshaft/code-elimination-and-simplification-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/code-elimination-and-simplification-phase.cc
@@ -32,7 +32,8 @@ void CodeEliminationAndSimplificationPhase::Run(Zone* temp_zone) {
                // (which, for simplificy, doesn't use the Assembler helper
                // methods, but only calls Next::ReduceLoad/Store).
                DuplicationOptimizationReducer,
-               ValueNumberingReducer>::Run(temp_zone);
+               VariableReducerHotfix,
+               ValueNumberingReducer>::Run<false>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/copying-phase.h b/deps/v8/src/compiler/turboshaft/copying-phase.h
index 64893f7173cbf6..fa2acafd12d6f2 100644
--- a/deps/v8/src/compiler/turboshaft/copying-phase.h
+++ b/deps/v8/src/compiler/turboshaft/copying-phase.h
@@ -36,6 +36,18 @@ struct PaddingSpace {
 V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os,
                                            PaddingSpace padding);
 
+template <class Next>
+class VariableReducerHotfix : public Next {
+public:
+  TURBOSHAFT_REDUCER_BOILERPLATE()
+
+  void SetVariable(Variable var, OpIndex new_index) {}
+  Variable NewLoopInvariantVariable(MaybeRegisterRepresentation rep) { return Variable(); }
+
+  OpIndex GetVariable(Variable var) { return OpIndex(); }
+  OpIndex GetPredecessorValue(Variable var, int predecessor_index) { return OpIndex(); }
+};
+
 template <typename Next>
 class ReducerBaseForwarder;
 template <typename Next>
@@ -46,6 +58,9 @@ class GraphVisitor : public Next {
   template <typename N>
   friend class ReducerBaseForwarder;
 
+ private:
+  bool contains_variable_reducer_;
+
  public:
   TURBOSHAFT_REDUCER_BOILERPLATE()
 
@@ -66,7 +81,8 @@ class GraphVisitor : public Next {
   // `trace_reduction` is a template parameter to avoid paying for tracing at
   // runtime.
   template <bool trace_reduction>
-  void VisitGraph() {
+  void VisitGraph(bool contains_variable_reducer) {
+    contains_variable_reducer_ = contains_variable_reducer;
     Asm().Analyze();
 
     // Creating initial old-to-new Block mapping.
@@ -177,8 +193,7 @@ class GraphVisitor : public Next {
     DCHECK(old_index.valid());
     OpIndex result = op_mapping_[old_index];
 
-    if constexpr (reducer_list_contains<typename Next::ReducerList,
-                                        VariableReducer>::value) {
+    if (contains_variable_reducer_) {
       if (!result.valid()) {
         // {op_mapping} doesn't have a mapping for {old_index}. The assembler
         // should provide the mapping.
@@ -1294,8 +1309,7 @@ class GraphVisitor : public Next {
     DCHECK(Asm().input_graph().BelongsToThisGraph(old_index));
     DCHECK_IMPLIES(new_index.valid(),
                    Asm().output_graph().BelongsToThisGraph(new_index));
-    if constexpr (reducer_list_contains<typename Next::ReducerList,
-                                        VariableReducer>::value) {
+    if (contains_variable_reducer_) {
       if (current_block_needs_variables_) {
         MaybeVariable var = GetVariableFor(old_index);
         if (!var.has_value()) {
@@ -1393,17 +1407,17 @@ template <template <class> class... Reducers>
 class CopyingPhaseImpl {
  public:
   static void Run(Graph& input_graph, Zone* phase_zone,
-                  bool trace_reductions = false) {
+                  bool contains_variable_reducer, bool trace_reductions = false) {
     TSAssembler<GraphVisitor, Reducers...> phase(
         input_graph, input_graph.GetOrCreateCompanion(), phase_zone);
 #ifdef DEBUG
     if (trace_reductions) {
-      phase.template VisitGraph<true>();
+      phase.template VisitGraph<true>(contains_variable_reducer);
     } else {
-      phase.template VisitGraph<false>();
+      phase.template VisitGraph<false>(contains_variable_reducer);
     }
 #else
-    phase.template VisitGraph<false>();
+    phase.template VisitGraph<false>(contains_variable_reducer);
 #endif  // DEBUG
   }
 };
@@ -1411,11 +1425,12 @@ class CopyingPhaseImpl {
 template <template <typename> typename... Reducers>
 class CopyingPhase {
  public:
+  template <bool contains_variable_reducer>
   static void Run(Zone* phase_zone) {
     PipelineData& data = PipelineData::Get();
     Graph& input_graph = data.graph();
     CopyingPhaseImpl<Reducers...>::Run(
-        input_graph, phase_zone, data.info()->turboshaft_trace_reduction());
+        input_graph, phase_zone, contains_variable_reducer, data.info()->turboshaft_trace_reduction());
   }
 };
 
diff --git a/deps/v8/src/compiler/turboshaft/csa-optimize-phase.cc b/deps/v8/src/compiler/turboshaft/csa-optimize-phase.cc
index ac8d097cea2536..38593e196f52d1 100644
--- a/deps/v8/src/compiler/turboshaft/csa-optimize-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/csa-optimize-phase.cc
@@ -25,23 +25,23 @@ namespace v8::internal::compiler::turboshaft {
 void CsaLoadEliminationPhase::Run(Zone* temp_zone) {
   CopyingPhase<VariableReducer, MachineOptimizationReducer,
                RequiredOptimizationReducer,
-               ValueNumberingReducer>::Run(temp_zone);
+               ValueNumberingReducer>::Run<true>(temp_zone);
 
   CopyingPhase<VariableReducer, LateLoadEliminationReducer,
                MachineOptimizationReducer, RequiredOptimizationReducer,
-               ValueNumberingReducer>::Run(temp_zone);
+               ValueNumberingReducer>::Run<true>(temp_zone);
 }
 
 void CsaLateEscapeAnalysisPhase::Run(Zone* temp_zone) {
   CopyingPhase<VariableReducer, LateEscapeAnalysisReducer,
                MachineOptimizationReducer, RequiredOptimizationReducer,
-               ValueNumberingReducer>::Run(temp_zone);
+               ValueNumberingReducer>::Run<true>(temp_zone);
 }
 
 void CsaBranchEliminationPhase::Run(Zone* temp_zone) {
   CopyingPhase<VariableReducer, MachineOptimizationReducer,
                BranchEliminationReducer, RequiredOptimizationReducer,
-               ValueNumberingReducer>::Run(temp_zone);
+               ValueNumberingReducer>::Run<true>(temp_zone);
 }
 
 void CsaOptimizePhase::Run(Zone* temp_zone) {
@@ -51,7 +51,7 @@ void CsaOptimizePhase::Run(Zone* temp_zone) {
   CopyingPhase<VariableReducer, PretenuringPropagationReducer,
                MachineOptimizationReducer, MemoryOptimizationReducer,
                RequiredOptimizationReducer,
-               ValueNumberingReducer>::Run(temp_zone);
+               ValueNumberingReducer>::Run<true>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/debug-feature-lowering-phase.cc b/deps/v8/src/compiler/turboshaft/debug-feature-lowering-phase.cc
index 3f637a5bd58672..c05874c57162df 100644
--- a/deps/v8/src/compiler/turboshaft/debug-feature-lowering-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/debug-feature-lowering-phase.cc
@@ -11,7 +11,7 @@ namespace v8::internal::compiler::turboshaft {
 
 void DebugFeatureLoweringPhase::Run(Zone* temp_zone) {
 #ifdef V8_ENABLE_DEBUG_CODE
-  turboshaft::CopyingPhase<turboshaft::DebugFeatureLoweringReducer>::Run(
+  turboshaft::CopyingPhase<turboshaft::DebugFeatureLoweringReducer>::Run<false>(
       temp_zone);
 #endif
 }
diff --git a/deps/v8/src/compiler/turboshaft/int64-lowering-phase.cc b/deps/v8/src/compiler/turboshaft/int64-lowering-phase.cc
index e6ebd385285a96..b2e42007bd1d2f 100644
--- a/deps/v8/src/compiler/turboshaft/int64-lowering-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/int64-lowering-phase.cc
@@ -16,7 +16,7 @@ void Int64LoweringPhase::Run(Zone* temp_zone) {
 #if V8_TARGET_ARCH_32_BIT
   turboshaft::CopyingPhase<
       turboshaft::Int64LoweringReducer, turboshaft::VariableReducer,
-      turboshaft::RequiredOptimizationReducer>::Run(temp_zone);
+      turboshaft::RequiredOptimizationReducer>::Run<true>(temp_zone);
 #else
   UNREACHABLE();
 #endif
diff --git a/deps/v8/src/compiler/turboshaft/loop-peeling-phase.cc b/deps/v8/src/compiler/turboshaft/loop-peeling-phase.cc
index 66c8f9b18b7663..a4d90eaf038230 100644
--- a/deps/v8/src/compiler/turboshaft/loop-peeling-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/loop-peeling-phase.cc
@@ -23,7 +23,7 @@ void LoopPeelingPhase::Run(Zone* temp_zone) {
                            turboshaft::VariableReducer,
                            turboshaft::MachineOptimizationReducer,
                            turboshaft::RequiredOptimizationReducer,
-                           turboshaft::ValueNumberingReducer>::Run(temp_zone);
+                           turboshaft::ValueNumberingReducer>::Run<true>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/loop-unrolling-phase.cc b/deps/v8/src/compiler/turboshaft/loop-unrolling-phase.cc
index 8e4781c77d0852..31a56e7908d101 100644
--- a/deps/v8/src/compiler/turboshaft/loop-unrolling-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/loop-unrolling-phase.cc
@@ -22,7 +22,7 @@ void LoopUnrollingPhase::Run(Zone* temp_zone) {
                              turboshaft::VariableReducer,
                              turboshaft::MachineOptimizationReducer,
                              turboshaft::RequiredOptimizationReducer,
-                             turboshaft::ValueNumberingReducer>::Run(temp_zone);
+                             turboshaft::ValueNumberingReducer>::Run<true>(temp_zone);
     PipelineData::Get().clear_loop_unrolling_analyzer();
   }
 }
diff --git a/deps/v8/src/compiler/turboshaft/machine-lowering-phase.cc b/deps/v8/src/compiler/turboshaft/machine-lowering-phase.cc
index 4dcd7312d2436a..f19df291d35f35 100644
--- a/deps/v8/src/compiler/turboshaft/machine-lowering-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/machine-lowering-phase.cc
@@ -20,11 +20,11 @@ void MachineLoweringPhase::Run(Zone* temp_zone) {
     CopyingPhase<DataViewReducer, VariableReducer, MachineLoweringReducer,
                  FastApiCallReducer, RequiredOptimizationReducer,
                  SelectLoweringReducer,
-                 MachineOptimizationReducer>::Run(temp_zone);
+                 MachineOptimizationReducer>::Run<true>(temp_zone);
   } else {
     CopyingPhase<DataViewReducer, VariableReducer, MachineLoweringReducer,
                  FastApiCallReducer, RequiredOptimizationReducer,
-                 SelectLoweringReducer>::Run(temp_zone);
+                 SelectLoweringReducer>::Run<true>(temp_zone);
   }
 }
 
diff --git a/deps/v8/src/compiler/turboshaft/machine-optimization-reducer.h b/deps/v8/src/compiler/turboshaft/machine-optimization-reducer.h
index fe184c63651bb8..7c758f965efdaf 100644
--- a/deps/v8/src/compiler/turboshaft/machine-optimization-reducer.h
+++ b/deps/v8/src/compiler/turboshaft/machine-optimization-reducer.h
@@ -1333,26 +1333,11 @@ class MachineOptimizationReducer : public Next {
         if (matcher.MatchConstantShiftRightArithmeticShiftOutZeros(
                 left, &x, rep_w, &k1) &&
             matcher.MatchIntegralWordConstant(right, rep_w, &k2) &&
-            CountLeadingSignBits(k2, rep_w) > k1) {
-          if (matcher.Get(left).saturated_use_count.IsZero()) {
-            return __ Comparison(
-                x, __ WordConstant(base::bits::Unsigned(k2) << k1, rep_w), kind,
-                rep_w);
-          } else if constexpr (reducer_list_contains<
-                                   ReducerList, ValueNumberingReducer>::value) {
-            // If the shift has uses, we only apply the transformation if the
-            // result would be GVNed away.
-            OpIndex rhs =
-                __ WordConstant(base::bits::Unsigned(k2) << k1, rep_w);
-            static_assert(ComparisonOp::input_count == 2);
-            static_assert(sizeof(ComparisonOp) == 8);
-            base::SmallVector<OperationStorageSlot, 32> storage;
-            ComparisonOp* cmp =
-                CreateOperation<ComparisonOp>(storage, x, rhs, kind, rep_w);
-            if (__ WillGVNOp(*cmp)) {
-              return __ Comparison(x, rhs, kind, rep_w);
-            }
-          }
+            CountLeadingSignBits(k2, rep_w) > k1 &&
+            matcher.Get(left).saturated_use_count.IsZero()) {
+          return __ Comparison(
+              x, __ WordConstant(base::bits::Unsigned(k2) << k1, rep_w), kind,
+              rep_w);
         }
         // k2 </<= (x >> k1)  =>  (k2 << k1) </<= x  if shifts reversible
         // Only perform the transformation if the shift is not used yet, to
@@ -1360,26 +1345,11 @@ class MachineOptimizationReducer : public Next {
         if (matcher.MatchConstantShiftRightArithmeticShiftOutZeros(
                 right, &x, rep_w, &k1) &&
             matcher.MatchIntegralWordConstant(left, rep_w, &k2) &&
-            CountLeadingSignBits(k2, rep_w) > k1) {
-          if (matcher.Get(right).saturated_use_count.IsZero()) {
-            return __ Comparison(
-                __ WordConstant(base::bits::Unsigned(k2) << k1, rep_w), x, kind,
-                rep_w);
-          } else if constexpr (reducer_list_contains<
-                                   ReducerList, ValueNumberingReducer>::value) {
-            // If the shift has uses, we only apply the transformation if the
-            // result would be GVNed away.
-            OpIndex lhs =
-                __ WordConstant(base::bits::Unsigned(k2) << k1, rep_w);
-            static_assert(ComparisonOp::input_count == 2);
-            static_assert(sizeof(ComparisonOp) == 8);
-            base::SmallVector<OperationStorageSlot, 32> storage;
-            ComparisonOp* cmp =
-                CreateOperation<ComparisonOp>(storage, lhs, x, kind, rep_w);
-            if (__ WillGVNOp(*cmp)) {
-              return __ Comparison(lhs, x, kind, rep_w);
-            }
-          }
+            CountLeadingSignBits(k2, rep_w) > k1 &&
+            matcher.Get(right).saturated_use_count.IsZero()) {
+          return __ Comparison(
+              __ WordConstant(base::bits::Unsigned(k2) << k1, rep_w), x, kind,
+              rep_w);
         }
       }
       // Map 64bit to 32bit comparisons.
diff --git a/deps/v8/src/compiler/turboshaft/optimize-phase.cc b/deps/v8/src/compiler/turboshaft/optimize-phase.cc
index 8766723c10ade7..35276eed559c58 100644
--- a/deps/v8/src/compiler/turboshaft/optimize-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/optimize-phase.cc
@@ -30,7 +30,7 @@ void OptimizePhase::Run(Zone* temp_zone) {
                            turboshaft::MemoryOptimizationReducer,
                            turboshaft::MachineOptimizationReducer,
                            turboshaft::RequiredOptimizationReducer,
-                           turboshaft::ValueNumberingReducer>::Run(temp_zone);
+                           turboshaft::ValueNumberingReducer>::Run<true>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/simplified-lowering-phase.cc b/deps/v8/src/compiler/turboshaft/simplified-lowering-phase.cc
index 588859a053aa25..3a283c0555c91c 100644
--- a/deps/v8/src/compiler/turboshaft/simplified-lowering-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/simplified-lowering-phase.cc
@@ -10,7 +10,7 @@
 namespace v8::internal::compiler::turboshaft {
 
 void SimplifiedLoweringPhase::Run(Zone* temp_zone) {
-  CopyingPhase<SimplifiedLoweringReducer>::Run(temp_zone);
+  CopyingPhase<SimplifiedLoweringReducer, VariableReducerHotfix>::Run<false>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/simplified-lowering-reducer.h b/deps/v8/src/compiler/turboshaft/simplified-lowering-reducer.h
index ba05dd9bd6100a..6817a6a813a14c 100644
--- a/deps/v8/src/compiler/turboshaft/simplified-lowering-reducer.h
+++ b/deps/v8/src/compiler/turboshaft/simplified-lowering-reducer.h
@@ -32,10 +32,10 @@ class SimplifiedLoweringReducer : public Next {
       OpIndex ig_index, const SpeculativeNumberBinopOp& op) {
     DCHECK_EQ(op.kind, SpeculativeNumberBinopOp::Kind::kSafeIntegerAdd);
 
-    OpIndex frame_state = Map(op.frame_state());
-    V<Word32> left = ProcessInput(Map(op.left()), Rep::Word32(),
+    OpIndex frame_state = MapImpl(op.frame_state());
+    V<Word32> left = ProcessInput(MapImpl(op.left()), Rep::Word32(),
                                   CheckKind::kSigned32, frame_state);
-    V<Word32> right = ProcessInput(Map(op.right()), Rep::Word32(),
+    V<Word32> right = ProcessInput(MapImpl(op.right()), Rep::Word32(),
                                    CheckKind::kSigned32, frame_state);
 
     V<Word32> result = __ OverflowCheckedBinop(
@@ -43,7 +43,7 @@ class SimplifiedLoweringReducer : public Next {
         WordRepresentation::Word32());
 
     V<Word32> overflow = __ Projection(result, 1, Rep::Word32());
-    __ DeoptimizeIf(overflow, Map(op.frame_state()),
+    __ DeoptimizeIf(overflow, MapImpl(op.frame_state()),
                     DeoptimizeReason::kOverflow, FeedbackSource{});
     return __ Projection(result, 0, Rep::Word32());
   }
@@ -52,10 +52,10 @@ class SimplifiedLoweringReducer : public Next {
     base::SmallVector<OpIndex, 8> return_values;
     for (OpIndex input : ret.return_values()) {
       return_values.push_back(
-          ProcessInput(Map(input), Rep::Tagged(), CheckKind::kNone, {}));
+          ProcessInput(MapImpl(input), Rep::Tagged(), CheckKind::kNone, {}));
     }
 
-    __ Return(Map(ret.pop_count()), base::VectorOf(return_values));
+    __ Return(MapImpl(ret.pop_count()), base::VectorOf(return_values));
     return OpIndex::Invalid();
   }
 
@@ -94,7 +94,7 @@ class SimplifiedLoweringReducer : public Next {
     }
   }
 
-  inline OpIndex Map(OpIndex ig_index) { return __ MapToNewGraph(ig_index); }
+  inline OpIndex MapImpl(OpIndex ig_index) { return __ MapToNewGraph(ig_index); }
 };
 
 #include "src/compiler/turboshaft/undef-assembler-macros.inc"
diff --git a/deps/v8/src/compiler/turboshaft/store-store-elimination-phase.cc b/deps/v8/src/compiler/turboshaft/store-store-elimination-phase.cc
index 177c1560dab328..f8f660d67174d1 100644
--- a/deps/v8/src/compiler/turboshaft/store-store-elimination-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/store-store-elimination-phase.cc
@@ -23,7 +23,7 @@ void StoreStoreEliminationPhase::Run(Zone* temp_zone) {
                            turboshaft::MachineOptimizationReducer,
                            turboshaft::RequiredOptimizationReducer,
                            turboshaft::BranchEliminationReducer,
-                           turboshaft::ValueNumberingReducer>::Run(temp_zone);
+                           turboshaft::ValueNumberingReducer>::Run<true>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/type-assertions-phase.cc b/deps/v8/src/compiler/turboshaft/type-assertions-phase.cc
index a508b1a074cda4..0aa30d884ef589 100644
--- a/deps/v8/src/compiler/turboshaft/type-assertions-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/type-assertions-phase.cc
@@ -21,9 +21,10 @@ void TypeAssertionsPhase::Run(Zone* temp_zone) {
       turboshaft::TypeInferenceReducerArgs::OutputGraphTyping::
           kPreserveFromInputGraph};
 
-  turboshaft::CopyingPhase<turboshaft::AssertTypesReducer,
+  turboshaft::CopyingPhase<turboshaft::VariableReducerHotfix,
+                           turboshaft::AssertTypesReducer,
                            turboshaft::ValueNumberingReducer,
-                           turboshaft::TypeInferenceReducer>::Run(temp_zone);
+                           turboshaft::TypeInferenceReducer>::Run<false>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/typed-optimizations-phase.cc b/deps/v8/src/compiler/turboshaft/typed-optimizations-phase.cc
index fbd90e77036223..a393cdd9ac3318 100644
--- a/deps/v8/src/compiler/turboshaft/typed-optimizations-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/typed-optimizations-phase.cc
@@ -23,7 +23,8 @@ void TypedOptimizationsPhase::Run(Zone* temp_zone) {
       turboshaft::TypeInferenceReducerArgs::OutputGraphTyping::kNone};
 
   turboshaft::CopyingPhase<turboshaft::TypedOptimizationsReducer,
-                           turboshaft::TypeInferenceReducer>::Run(temp_zone);
+                           turboshaft::VariableReducerHotfix,
+                           turboshaft::TypeInferenceReducer>::Run<false>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/wasm-dead-code-elimination-phase.cc b/deps/v8/src/compiler/turboshaft/wasm-dead-code-elimination-phase.cc
index 0d3bcba4976e4b..62ea525e6f0704 100644
--- a/deps/v8/src/compiler/turboshaft/wasm-dead-code-elimination-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/wasm-dead-code-elimination-phase.cc
@@ -28,7 +28,8 @@ void WasmDeadCodeEliminationPhase::Run(Zone* temp_zone) {
                // (which, for simplificy, doesn't use the Assembler helper
                // methods, but only calls Next::ReduceLoad/Store).
                DuplicationOptimizationReducer,
-               ValueNumberingReducer>::Run(temp_zone);
+               VariableReducerHotfix,
+               ValueNumberingReducer>::Run<false>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/wasm-gc-optimize-phase.cc b/deps/v8/src/compiler/turboshaft/wasm-gc-optimize-phase.cc
index f13040994737e8..73ecb8ab1de689 100644
--- a/deps/v8/src/compiler/turboshaft/wasm-gc-optimize-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/wasm-gc-optimize-phase.cc
@@ -15,7 +15,7 @@ namespace v8::internal::compiler::turboshaft {
 void WasmGCOptimizePhase::Run(Zone* temp_zone) {
   UnparkedScopeIfNeeded scope(PipelineData::Get().broker(),
                               v8_flags.turboshaft_trace_reduction);
-  CopyingPhase<WasmLoadEliminationReducer, WasmGCTypeReducer>::Run(temp_zone);
+  CopyingPhase<WasmLoadEliminationReducer, WasmGCTypeReducer, VariableReducerHotfix>::Run<false>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/wasm-lowering-phase.cc b/deps/v8/src/compiler/turboshaft/wasm-lowering-phase.cc
index 68333b9cac2229..c18eaa98652e93 100644
--- a/deps/v8/src/compiler/turboshaft/wasm-lowering-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/wasm-lowering-phase.cc
@@ -21,7 +21,7 @@ void WasmLoweringPhase::Run(Zone* temp_zone) {
   // Also run the MachineOptimizationReducer as it can help the late load
   // elimination that follows this phase eliminate more loads.
   CopyingPhase<WasmLoweringReducer, VariableReducer, MachineOptimizationReducer,
-               RequiredOptimizationReducer>::Run(temp_zone);
+               RequiredOptimizationReducer>::Run<true>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/wasm-optimize-phase.cc b/deps/v8/src/compiler/turboshaft/wasm-optimize-phase.cc
index 34a05c1a0a30a8..d9fadfc3ff3267 100644
--- a/deps/v8/src/compiler/turboshaft/wasm-optimize-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/wasm-optimize-phase.cc
@@ -27,7 +27,7 @@ void WasmOptimizePhase::Run(Zone* temp_zone) {
                MemoryOptimizationReducer, VariableReducer,
                RequiredOptimizationReducer, BranchEliminationReducer,
                LateLoadEliminationReducer,
-               ValueNumberingReducer>::Run(temp_zone);
+               ValueNumberingReducer>::Run<true>(temp_zone);
 }
 
 }  // namespace v8::internal::compiler::turboshaft
diff --git a/deps/v8/src/compiler/turboshaft/wasm-revec-phase.cc b/deps/v8/src/compiler/turboshaft/wasm-revec-phase.cc
index f44e34c345ebb0..b12c61f994cca1 100644
--- a/deps/v8/src/compiler/turboshaft/wasm-revec-phase.cc
+++ b/deps/v8/src/compiler/turboshaft/wasm-revec-phase.cc
@@ -17,7 +17,7 @@ void WasmRevecPhase::Run(Zone* temp_zone) {
     PipelineData::Get().set_wasm_revec_analyzer(&analyzer);
     UnparkedScopeIfNeeded scope(PipelineData::Get().broker(),
                                 v8_flags.turboshaft_trace_reduction);
-    CopyingPhase<WasmRevecReducer>::Run(temp_zone);
+    CopyingPhase<WasmRevecReducer>::Run<false>(temp_zone);
     PipelineData::Get().clear_wasm_revec_analyzer();
   }
 }
diff --git a/deps/v8/src/heap/heap.cc b/deps/v8/src/heap/heap.cc
index f82b975ffad728..5cf534b1da21b1 100644
--- a/deps/v8/src/heap/heap.cc
+++ b/deps/v8/src/heap/heap.cc
@@ -3565,7 +3565,7 @@ void Heap::RightTrimArray(Tagged<Array> object, int new_capacity,
   }
 
   const int bytes_to_trim =
-      (old_capacity - new_capacity) * Array::Shape::kElementSize;
+      (old_capacity - new_capacity) * Array::HotfixShape::kElementSize;
 
   // Calculate location of new array end.
   const int old_size = Array::SizeFor(old_capacity);
diff --git a/deps/v8/src/objects/dictionary.h b/deps/v8/src/objects/dictionary.h
index 58924206ea9313..9cfef9e0b14d3f 100644
--- a/deps/v8/src/objects/dictionary.h
+++ b/deps/v8/src/objects/dictionary.h
@@ -32,8 +32,7 @@ class EXPORT_TEMPLATE_DECLARE(V8_EXPORT_PRIVATE) Dictionary
   using DerivedHashTable = HashTable<Derived, Shape>;
 
  public:
-  using TodoShape = Shape;
-  using Key = typename TodoShape::Key;
+  using Key = typename Shape::Key;
   inline Tagged<Object> ValueAt(InternalIndex entry);
   inline Tagged<Object> ValueAt(PtrComprCageBase cage_base,
                                 InternalIndex entry);
@@ -126,7 +125,7 @@ class EXPORT_TEMPLATE_DECLARE(V8_EXPORT_PRIVATE) Dictionary
                              Key key, Handle<Object> value,
                              PropertyDetails details);
 
-  OBJECT_CONSTRUCTORS(Dictionary, HashTable<Derived, TodoShape>);
+  OBJECT_CONSTRUCTORS(Dictionary, HashTable<Derived, Shape>);
 };
 
 #define EXTERN_DECLARE_DICTIONARY(DERIVED, SHAPE)                  \
diff --git a/deps/v8/src/objects/fixed-array.h b/deps/v8/src/objects/fixed-array.h
index 56dbb62d0c1277..e490484982806c 100644
--- a/deps/v8/src/objects/fixed-array.h
+++ b/deps/v8/src/objects/fixed-array.h
@@ -24,13 +24,13 @@ namespace internal {
 #include "torque-generated/src/objects/fixed-array-tq.inc"
 
 // Derived: must have a Smi slot at kCapacityOffset.
-template <class Derived, class ShapeT, class Super = HeapObject>
+template <class Derived, class Shape, class Super = HeapObject>
 class TaggedArrayBase : public Super {
   static_assert(std::is_base_of<HeapObject, Super>::value);
   OBJECT_CONSTRUCTORS(TaggedArrayBase, Super);
 
-  using ElementT = typename ShapeT::ElementT;
-  static_assert(ShapeT::kElementSize == kTaggedSize);
+  using ElementT = typename Shape::ElementT;
+  static_assert(Shape::kElementSize == kTaggedSize);
   static_assert(is_subtype_v<ElementT, Object> ||
                 is_subtype_v<ElementT, MaybeObject>);
 
@@ -53,7 +53,7 @@ class TaggedArrayBase : public Super {
       std::conditional_t<kElementsAreMaybeObject, MaybeObjectSlot, ObjectSlot>;
 
  public:
-  using Shape = ShapeT;
+  using ShapeT = Shape;
 
   inline int capacity() const;
   inline int capacity(AcquireLoadTag) const;
@@ -183,6 +183,7 @@ class FixedArray : public TaggedArrayBase<FixedArray, TaggedArrayShape> {
   OBJECT_CONSTRUCTORS(FixedArray, Super);
 
  public:
+  using HotfixShape = TaggedArrayShape;
   template <class IsolateT>
   static inline Handle<FixedArray> New(
       IsolateT* isolate, int capacity,
@@ -228,7 +229,7 @@ class FixedArray : public TaggedArrayBase<FixedArray, TaggedArrayShape> {
 
   class BodyDescriptor;
 
-  static constexpr int kLengthOffset = Shape::kCapacityOffset;
+  static constexpr int kLengthOffset = ShapeT::kCapacityOffset;
   static constexpr int kMaxLength = FixedArray::kMaxCapacity;
   static constexpr int kMaxRegularLength = FixedArray::kMaxRegularCapacity;
 
@@ -276,7 +277,7 @@ class TrustedFixedArray
   class BodyDescriptor;
 
   static constexpr int kLengthOffset =
-      TrustedFixedArray::Shape::kCapacityOffset;
+      TrustedFixedArray::ShapeT::kCapacityOffset;
   static constexpr int kMaxLength = TrustedFixedArray::kMaxCapacity;
   static constexpr int kMaxRegularLength =
       TrustedFixedArray::kMaxRegularCapacity;
@@ -333,6 +334,7 @@ class PrimitiveArrayBase : public Super {
 
  public:
   using Shape = ShapeT;
+  using HotfixShape = ShapeT;
   static constexpr bool kElementsAreMaybeObject = false;
 
   inline int length() const;
@@ -467,6 +469,8 @@ class WeakFixedArray
   OBJECT_CONSTRUCTORS(WeakFixedArray, Super);
 
  public:
+  using Shape = WeakFixedArrayShape;
+  using HotfixShape = WeakFixedArrayShape;
   template <class IsolateT>
   static inline Handle<WeakFixedArray> New(
       IsolateT* isolate, int capacity,
@@ -478,7 +482,7 @@ class WeakFixedArray
 
   class BodyDescriptor;
 
-  static constexpr int kLengthOffset = Shape::kCapacityOffset;
+  static constexpr int kLengthOffset = ShapeT::kCapacityOffset;
 };
 
 // WeakArrayList is like a WeakFixedArray with static convenience methods for
@@ -614,6 +618,7 @@ class ArrayList : public TaggedArrayBase<ArrayList, ArrayListShape> {
 
  public:
   using Shape = ArrayListShape;
+  using HotfixShape = ArrayListShape;
 
   template <class IsolateT>
   static inline Handle<ArrayList> New(
@@ -685,6 +690,7 @@ class ByteArray : public PrimitiveArrayBase<ByteArray, ByteArrayShape> {
 
  public:
   using Shape = ByteArrayShape;
+  using HotfixShape = ByteArrayShape;
 
   template <class IsolateT>
   static inline Handle<ByteArray> New(
diff --git a/deps/v8/src/objects/hash-table-inl.h b/deps/v8/src/objects/hash-table-inl.h
index 6d37e7d674d59d..c3451d2fc28db9 100644
--- a/deps/v8/src/objects/hash-table-inl.h
+++ b/deps/v8/src/objects/hash-table-inl.h
@@ -170,7 +170,7 @@ template <typename Derived, typename Shape>
 template <typename IsolateT>
 InternalIndex HashTable<Derived, Shape>::FindEntry(IsolateT* isolate, Key key) {
   ReadOnlyRoots roots(isolate);
-  return FindEntry(isolate, roots, key, TodoShape::Hash(roots, key));
+  return FindEntry(isolate, roots, key, Shape::Hash(roots, key));
 }
 
 // Find entry for key otherwise return kNotFound.
@@ -183,7 +183,7 @@ InternalIndex HashTable<Derived, Shape>::FindEntry(PtrComprCageBase cage_base,
   uint32_t count = 1;
   Tagged<Object> undefined = roots.undefined_value();
   Tagged<Object> the_hole = roots.the_hole_value();
-  DCHECK_EQ(TodoShape::Hash(roots, key), static_cast<uint32_t>(hash));
+  DCHECK_EQ(Shape::Hash(roots, key), static_cast<uint32_t>(hash));
   // EnsureCapacity will guarantee the hash table is never full.
   for (InternalIndex entry = FirstProbe(hash, capacity);;
        entry = NextProbe(entry, count++, capacity)) {
@@ -191,8 +191,8 @@ InternalIndex HashTable<Derived, Shape>::FindEntry(PtrComprCageBase cage_base,
     // Empty entry. Uses raw unchecked accessors because it is called by the
     // string table during bootstrapping.
     if (element == undefined) return InternalIndex::NotFound();
-    if (TodoShape::kMatchNeedsHoleCheck && element == the_hole) continue;
-    if (TodoShape::IsMatch(key, element)) return entry;
+    if (Shape::kMatchNeedsHoleCheck && element == the_hole) continue;
+    if (Shape::IsMatch(key, element)) return entry;
   }
 }
 
@@ -216,7 +216,7 @@ bool HashTable<Derived, Shape>::ToKey(ReadOnlyRoots roots, InternalIndex entry,
                                       Tagged<Object>* out_k) {
   Tagged<Object> k = KeyAt(entry);
   if (!IsKey(roots, k)) return false;
-  *out_k = TodoShape::Unwrap(k);
+  *out_k = Shape::Unwrap(k);
   return true;
 }
 
@@ -226,7 +226,7 @@ bool HashTable<Derived, Shape>::ToKey(PtrComprCageBase cage_base,
                                       Tagged<Object>* out_k) {
   Tagged<Object> k = KeyAt(cage_base, entry);
   if (!IsKey(GetReadOnlyRoots(cage_base), k)) return false;
-  *out_k = TodoShape::Unwrap(k);
+  *out_k = Shape::Unwrap(k);
   return true;
 }
 
diff --git a/deps/v8/src/objects/hash-table.h b/deps/v8/src/objects/hash-table.h
index 6b25f043e8ed6b..6742b2573d7c7c 100644
--- a/deps/v8/src/objects/hash-table.h
+++ b/deps/v8/src/objects/hash-table.h
@@ -126,15 +126,15 @@ class V8_EXPORT_PRIVATE HashTableBase : public NON_EXPORTED_BASE(FixedArray) {
   OBJECT_CONSTRUCTORS(HashTableBase, FixedArray);
 };
 
-template <typename Derived, typename ShapeT>
+template <typename Derived, typename Shape>
 class EXPORT_TEMPLATE_DECLARE(V8_EXPORT_PRIVATE) HashTable
     : public HashTableBase {
  public:
   // TODO(jgruber): Derive from TaggedArrayBase instead of FixedArray, and
   // merge with TaggedArraryBase's Shape class. Once the naming conflict is
   // resolved rename all TodoShape occurrences back to Shape.
-  using TodoShape = ShapeT;
-  using Key = typename TodoShape::Key;
+  using ShapeT = Shape;
+  using Key = typename Shape::Key;
 
   // Returns a new HashTable object.
   template <typename IsolateT>
@@ -177,9 +177,8 @@ class EXPORT_TEMPLATE_DECLARE(V8_EXPORT_PRIVATE) HashTable
   inline void SetKeyAt(InternalIndex entry, Tagged<Object> value,
                        WriteBarrierMode mode = UPDATE_WRITE_BARRIER);
 
-  static const int kElementsStartIndex =
-      kPrefixStartIndex + TodoShape::kPrefixSize;
-  static const int kEntrySize = TodoShape::kEntrySize;
+  static const int kElementsStartIndex = kPrefixStartIndex + Shape::kPrefixSize;
+  static const int kEntrySize = Shape::kEntrySize;
   static_assert(kEntrySize > 0);
   static const int kEntryKeyIndex = 0;
   static const int kElementsStartOffset =
diff --git a/deps/v8/src/objects/objects.cc b/deps/v8/src/objects/objects.cc
index ed640e14dd43b3..d64d0c89d3202c 100644
--- a/deps/v8/src/objects/objects.cc
+++ b/deps/v8/src/objects/objects.cc
@@ -5123,11 +5123,11 @@ void HashTable<Derived, Shape>::Rehash(PtrComprCageBase cage_base,
     uint32_t from_index = EntryToIndex(i);
     Tagged<Object> k = this->get(from_index);
     if (!IsKey(roots, k)) continue;
-    uint32_t hash = TodoShape::HashForObject(roots, k);
+    uint32_t hash = Shape::HashForObject(roots, k);
     uint32_t insertion_index =
         EntryToIndex(new_table->FindInsertionEntry(cage_base, roots, hash));
     new_table->set_key(insertion_index, get(from_index), mode);
-    for (int j = 1; j < TodoShape::kEntrySize; j++) {
+    for (int j = 1; j < Shape::kEntrySize; j++) {
       new_table->set(insertion_index + j, get(from_index + j), mode);
     }
   }
@@ -5140,7 +5140,7 @@ InternalIndex HashTable<Derived, Shape>::EntryForProbe(ReadOnlyRoots roots,
                                                        Tagged<Object> k,
                                                        int probe,
                                                        InternalIndex expected) {
-  uint32_t hash = TodoShape::HashForObject(roots, k);
+  uint32_t hash = Shape::HashForObject(roots, k);
   uint32_t capacity = this->Capacity();
   InternalIndex entry = FirstProbe(hash, capacity);
   for (int i = 1; i < probe; i++) {
@@ -5155,17 +5155,17 @@ void HashTable<Derived, Shape>::Swap(InternalIndex entry1, InternalIndex entry2,
                                      WriteBarrierMode mode) {
   int index1 = EntryToIndex(entry1);
   int index2 = EntryToIndex(entry2);
-  Tagged<Object> temp[TodoShape::kEntrySize];
+  Tagged<Object> temp[Shape::kEntrySize];
   Derived* self = static_cast<Derived*>(this);
-  for (int j = 0; j < TodoShape::kEntrySize; j++) {
+  for (int j = 0; j < Shape::kEntrySize; j++) {
     temp[j] = get(index1 + j);
   }
   self->set_key(index1, get(index2), mode);
-  for (int j = 1; j < TodoShape::kEntrySize; j++) {
+  for (int j = 1; j < Shape::kEntrySize; j++) {
     set(index1 + j, get(index2 + j), mode);
   }
   self->set_key(index2, temp[0], mode);
-  for (int j = 1; j < TodoShape::kEntrySize; j++) {
+  for (int j = 1; j < Shape::kEntrySize; j++) {
     set(index2 + j, temp[j], mode);
   }
 }
@@ -5327,7 +5327,7 @@ GlobalDictionary::TryFindPropertyCellForConcurrentLookupIterator(
   DisallowGarbageCollection no_gc;
   PtrComprCageBase cage_base{isolate};
   ReadOnlyRoots roots(isolate);
-  const int32_t hash = TodoShape::Hash(roots, name);
+  const int32_t hash = ShapeT::Hash(roots, name);
   const uint32_t capacity = Capacity();
   uint32_t count = 1;
   Tagged<Object> undefined = roots.undefined_value();
@@ -5338,8 +5338,8 @@ GlobalDictionary::TryFindPropertyCellForConcurrentLookupIterator(
     Tagged<Object> element = KeyAt(cage_base, entry, kRelaxedLoad);
     if (isolate->heap()->IsPendingAllocation(element)) return {};
     if (element == undefined) return {};
-    if (TodoShape::kMatchNeedsHoleCheck && element == the_hole) continue;
-    if (!TodoShape::IsMatch(name, element)) continue;
+    if (ShapeT::kMatchNeedsHoleCheck && element == the_hole) continue;
+    if (!ShapeT::IsMatch(name, element)) continue;
     CHECK(IsPropertyCell(element, cage_base));
     return PropertyCell::cast(element);
   }
@@ -5353,7 +5353,7 @@ Handle<StringSet> StringSet::Add(Isolate* isolate, Handle<StringSet> stringset,
                                  Handle<String> name) {
   if (!stringset->Has(isolate, name)) {
     stringset = EnsureCapacity(isolate, stringset);
-    uint32_t hash = TodoShape::Hash(ReadOnlyRoots(isolate), *name);
+    uint32_t hash = ShapeT::Hash(ReadOnlyRoots(isolate), *name);
     InternalIndex entry = stringset->FindInsertionEntry(isolate, hash);
     stringset->set(EntryToIndex(entry), *name);
     stringset->ElementAdded();
@@ -5372,7 +5372,7 @@ Handle<RegisteredSymbolTable> RegisteredSymbolTable::Add(
   SLOW_DCHECK(table->FindEntry(isolate, key).is_not_found());
 
   table = EnsureCapacity(isolate, table);
-  uint32_t hash = TodoShape::Hash(ReadOnlyRoots(isolate), key);
+  uint32_t hash = ShapeT::Hash(ReadOnlyRoots(isolate), key);
   InternalIndex entry = table->FindInsertionEntry(isolate, hash);
   table->set(EntryToIndex(entry), *key);
   table->set(EntryToValueIndex(entry), *symbol);
@@ -5441,7 +5441,7 @@ int BaseNameDictionary<Derived, Shape>::NextEnumerationIndex(
 template <typename Derived, typename Shape>
 Handle<Derived> Dictionary<Derived, Shape>::DeleteEntry(
     Isolate* isolate, Handle<Derived> dictionary, InternalIndex entry) {
-  DCHECK(TodoShape::kEntrySize != 3 ||
+  DCHECK(Shape::kEntrySize != 3 ||
          dictionary->DetailsAt(entry).IsConfigurable());
   dictionary->ClearEntry(entry);
   dictionary->ElementRemoved();
@@ -5462,7 +5462,7 @@ Handle<Derived> Dictionary<Derived, Shape>::AtPut(Isolate* isolate,
 
   // We don't need to copy over the enumeration index.
   dictionary->ValueAtPut(entry, *value);
-  if (TodoShape::kEntrySize == 3) dictionary->DetailsAtPut(entry, details);
+  if (Shape::kEntrySize == 3) dictionary->DetailsAtPut(entry, details);
   return dictionary;
 }
 
@@ -5479,7 +5479,7 @@ void Dictionary<Derived, Shape>::UncheckedAtPut(Isolate* isolate,
   } else {
     // We don't need to copy over the enumeration index.
     dictionary->ValueAtPut(entry, *value);
-    if (TodoShape::kEntrySize == 3) dictionary->DetailsAtPut(entry, details);
+    if (Shape::kEntrySize == 3) dictionary->DetailsAtPut(entry, details);
   }
 }
 
@@ -5520,19 +5520,19 @@ Handle<Derived> Dictionary<Derived, Shape>::Add(IsolateT* isolate,
                                                 PropertyDetails details,
                                                 InternalIndex* entry_out) {
   ReadOnlyRoots roots(isolate);
-  uint32_t hash = TodoShape::Hash(roots, key);
+  uint32_t hash = Shape::Hash(roots, key);
   // Validate that the key is absent.
   SLOW_DCHECK(dictionary->FindEntry(isolate, key).is_not_found());
   // Check whether the dictionary should be extended.
   dictionary = Derived::EnsureCapacity(isolate, dictionary);
 
   // Compute the key object.
-  Handle<Object> k = TodoShape::template AsHandle<key_allocation>(isolate, key);
+  Handle<Object> k = Shape::template AsHandle<key_allocation>(isolate, key);
 
   InternalIndex entry = dictionary->FindInsertionEntry(isolate, roots, hash);
   dictionary->SetEntry(entry, *k, *value, details);
   DCHECK(IsNumber(dictionary->KeyAt(isolate, entry)) ||
-         IsUniqueName(TodoShape::Unwrap(dictionary->KeyAt(isolate, entry))));
+         IsUniqueName(Shape::Unwrap(dictionary->KeyAt(isolate, entry))));
   dictionary->ElementAdded();
   if (entry_out) *entry_out = entry;
   return dictionary;
@@ -5545,18 +5545,18 @@ void Dictionary<Derived, Shape>::UncheckedAdd(IsolateT* isolate,
                                               Key key, Handle<Object> value,
                                               PropertyDetails details) {
   ReadOnlyRoots roots(isolate);
-  uint32_t hash = TodoShape::Hash(roots, key);
+  uint32_t hash = Shape::Hash(roots, key);
   // Validate that the key is absent and we capacity is sufficient.
   SLOW_DCHECK(dictionary->FindEntry(isolate, key).is_not_found());
   DCHECK(dictionary->HasSufficientCapacityToAdd(1));
 
   // Compute the key object.
-  Handle<Object> k = TodoShape::template AsHandle<key_allocation>(isolate, key);
+  Handle<Object> k = Shape::template AsHandle<key_allocation>(isolate, key);
 
   InternalIndex entry = dictionary->FindInsertionEntry(isolate, roots, hash);
   dictionary->SetEntry(entry, *k, *value, details);
   DCHECK(IsNumber(dictionary->KeyAt(isolate, entry)) ||
-         IsUniqueName(TodoShape::Unwrap(dictionary->KeyAt(isolate, entry))));
+         IsUniqueName(Shape::Unwrap(dictionary->KeyAt(isolate, entry))));
 }
 
 template <typename Derived, typename Shape>
diff --git a/deps/v8/src/objects/template-objects.cc b/deps/v8/src/objects/template-objects.cc
index 003a02d301061d..d1146ad389c3fb 100644
--- a/deps/v8/src/objects/template-objects.cc
+++ b/deps/v8/src/objects/template-objects.cc
@@ -54,7 +54,7 @@ Handle<JSArray> TemplateObjectDescription::GetTemplateObject(
   // Check the template weakmap to see if the template object already exists.
   Handle<Script> script(Script::cast(shared_info->script(isolate)), isolate);
   int32_t hash =
-      EphemeronHashTable::TodoShape::Hash(ReadOnlyRoots(isolate), script);
+      EphemeronHashTable::ShapeT::Hash(ReadOnlyRoots(isolate), script);
   MaybeHandle<ArrayList> maybe_cached_templates;
 
   if (!IsUndefined(native_context->template_weakmap(), isolate)) {