[v18.x] deps: patch V8 to 10.2.154.20

deps/v8/include/v8-version.h

@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 10
 #define V8_MINOR_VERSION 2
 #define V8_BUILD_NUMBER 154
-#define V8_PATCH_LEVEL 19
+#define V8_PATCH_LEVEL 20
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

deps/v8/src/compiler/effect-control-linearizer.cc

@@ -5384,6 +5384,8 @@ Node* EffectControlLinearizer::LowerLoadFieldByIndex(Node* node) {
 
   auto if_double = __ MakeDeferredLabel();
   auto done = __ MakeLabel(MachineRepresentation::kTagged);
+  auto loaded_field = __ MakeLabel(MachineRepresentation::kTagged);
+  auto done_double = __ MakeLabel(MachineRepresentation::kFloat64);
 
   // Check if field is a mutable double field.
   __ GotoIfNot(__ IntPtrEqual(__ WordAnd(index, one), zero), &if_double);
@@ -5400,8 +5402,8 @@ Node* EffectControlLinearizer::LowerLoadFieldByIndex(Node* node) {
       Node* offset =
           __ IntAdd(__ WordShl(index, __ IntPtrConstant(kTaggedSizeLog2 - 1)),
                     __ IntPtrConstant(JSObject::kHeaderSize - kHeapObjectTag));
-      Node* result = __ Load(MachineType::AnyTagged(), object, offset);
-      __ Goto(&done, result);
+      Node* field = __ Load(MachineType::AnyTagged(), object, offset);
+      __ Goto(&loaded_field, field);
     }
 
     // The field is located in the properties backing store of {object}.
@@ -5415,18 +5417,15 @@ Node* EffectControlLinearizer::LowerLoadFieldByIndex(Node* node) {
                                __ IntPtrConstant(kTaggedSizeLog2 - 1)),
                     __ IntPtrConstant((FixedArray::kHeaderSize - kTaggedSize) -
                                       kHeapObjectTag));
-      Node* result = __ Load(MachineType::AnyTagged(), properties, offset);
-      __ Goto(&done, result);
+      Node* field = __ Load(MachineType::AnyTagged(), properties, offset);
+      __ Goto(&loaded_field, field);
     }
   }
 
   // The field is a Double field, either unboxed in the object on 64-bit
   // architectures, or a mutable HeapNumber.
   __ Bind(&if_double);
   {
-    auto loaded_field = __ MakeLabel(MachineRepresentation::kTagged);
-    auto done_double = __ MakeLabel(MachineRepresentation::kFloat64);
-
     index = __ WordSar(index, one);
 
     // Check if field is in-object or out-of-object.
@@ -5454,27 +5453,27 @@ Node* EffectControlLinearizer::LowerLoadFieldByIndex(Node* node) {
       Node* field = __ Load(MachineType::AnyTagged(), properties, offset);
       __ Goto(&loaded_field, field);
     }
+  }
 
-    __ Bind(&loaded_field);
-    {
-      Node* field = loaded_field.PhiAt(0);
-      // We may have transitioned in-place away from double, so check that
-      // this is a HeapNumber -- otherwise the load is fine and we don't need
-      // to copy anything anyway.
-      __ GotoIf(ObjectIsSmi(field), &done, field);
-      Node* field_map = __ LoadField(AccessBuilder::ForMap(), field);
-      __ GotoIfNot(__ TaggedEqual(field_map, __ HeapNumberMapConstant()), &done,
-                   field);
-
-      Node* value = __ LoadField(AccessBuilder::ForHeapNumberValue(), field);
-      __ Goto(&done_double, value);
-    }
+  __ Bind(&loaded_field);
+  {
+    Node* field = loaded_field.PhiAt(0);
+    // We may have transitioned in-place away from double, so check that
+    // this is a HeapNumber -- otherwise the load is fine and we don't need
+    // to copy anything anyway.
+    __ GotoIf(ObjectIsSmi(field), &done, field);
+    Node* field_map = __ LoadField(AccessBuilder::ForMap(), field);
+    __ GotoIfNot(__ TaggedEqual(field_map, __ HeapNumberMapConstant()), &done,
+                 field);
 
-    __ Bind(&done_double);
-    {
-      Node* result = AllocateHeapNumberWithValue(done_double.PhiAt(0));
-      __ Goto(&done, result);
-    }
+    Node* value = __ LoadField(AccessBuilder::ForHeapNumberValue(), field);
+    __ Goto(&done_double, value);
+  }
+
+  __ Bind(&done_double);
+  {
+    Node* result = AllocateHeapNumberWithValue(done_double.PhiAt(0));
+    __ Goto(&done, result);
   }
 
   __ Bind(&done);