1 files changed, 45 insertions, 21 deletions

diff --git a/deps/v8/src/compiler/simplified-lowering.cc b/deps/v8/src/compiler/simplified-lowering.cc
index f24f000887..74bb7fcd6b 100644
--- a/deps/v8/src/compiler/simplified-lowering.cc
+++ b/deps/v8/src/compiler/simplified-lowering.cc
@@ -286,8 +286,8 @@ class RepresentationSelector {
     bool weakened_ = false;
   };
 
-  RepresentationSelector(JSGraph* jsgraph, Zone* zone,
-                         RepresentationChanger* changer,
+  RepresentationSelector(JSGraph* jsgraph, const JSHeapBroker* js_heap_broker,
+                         Zone* zone, RepresentationChanger* changer,
                          SourcePositionTable* source_positions,
                          NodeOriginTable* node_origins)
       : jsgraph_(jsgraph),
@@ -306,7 +306,7 @@ class RepresentationSelector {
         source_positions_(source_positions),
         node_origins_(node_origins),
         type_cache_(TypeCache::Get()),
-        op_typer_(jsgraph->isolate(), graph_zone()) {
+        op_typer_(jsgraph->isolate(), js_heap_broker, graph_zone()) {
   }
 
   // Forward propagation of types from type feedback.
@@ -537,7 +537,7 @@ class RepresentationSelector {
   }
 
   void PrintNodeFeedbackType(Node* n) {
-    OFStream os(stdout);
+    StdoutStream os;
     os << "#" << n->id() << ":" << *n->op() << "(";
     int j = 0;
     for (Node* const i : n->inputs()) {
@@ -2630,6 +2630,17 @@ class RepresentationSelector {
         SetOutput(node, rep);
         return;
       }
+      case IrOpcode::kLoadDataViewElement: {
+        MachineRepresentation const rep =
+            MachineRepresentationFromArrayType(ExternalArrayTypeOf(node->op()));
+        ProcessInput(node, 0, UseInfo::AnyTagged());         // buffer
+        ProcessInput(node, 1, UseInfo::PointerInt());        // external pointer
+        ProcessInput(node, 2, UseInfo::TruncatingWord32());  // index
+        ProcessInput(node, 3, UseInfo::Bool());              // little-endian
+        ProcessRemainingInputs(node, 4);
+        SetOutput(node, rep);
+        return;
+      }
       case IrOpcode::kStoreTypedElement: {
         MachineRepresentation const rep =
             MachineRepresentationFromArrayType(ExternalArrayTypeOf(node->op()));
@@ -2643,6 +2654,19 @@ class RepresentationSelector {
         SetOutput(node, MachineRepresentation::kNone);
         return;
       }
+      case IrOpcode::kStoreDataViewElement: {
+        MachineRepresentation const rep =
+            MachineRepresentationFromArrayType(ExternalArrayTypeOf(node->op()));
+        ProcessInput(node, 0, UseInfo::AnyTagged());         // buffer
+        ProcessInput(node, 1, UseInfo::PointerInt());        // external pointer
+        ProcessInput(node, 2, UseInfo::TruncatingWord32());  // index
+        ProcessInput(node, 3,
+                     TruncatingUseInfoFromRepresentation(rep));  // value
+        ProcessInput(node, 4, UseInfo::Bool());  // little-endian
+        ProcessRemainingInputs(node, 5);
+        SetOutput(node, MachineRepresentation::kNone);
+        return;
+      }
       case IrOpcode::kConvertReceiver: {
         Type input_type = TypeOf(node->InputAt(0));
         VisitBinop(node, UseInfo::AnyTagged(),
@@ -3188,29 +3212,26 @@ class RepresentationSelector {
 
   void PrintOutputInfo(NodeInfo* info) {
     if (FLAG_trace_representation) {
-      OFStream os(stdout);
-      os << info->representation();
+      StdoutStream{} << info->representation();
     }
   }
 
   void PrintRepresentation(MachineRepresentation rep) {
     if (FLAG_trace_representation) {
-      OFStream os(stdout);
-      os << rep;
+      StdoutStream{} << rep;
     }
   }
 
   void PrintTruncation(Truncation truncation) {
     if (FLAG_trace_representation) {
-      OFStream os(stdout);
-      os << truncation.description() << std::endl;
+      StdoutStream{} << truncation.description() << std::endl;
     }
   }
 
   void PrintUseInfo(UseInfo info) {
     if (FLAG_trace_representation) {
-      OFStream os(stdout);
-      os << info.representation() << ":" << info.truncation().description();
+      StdoutStream{} << info.representation() << ":"
+                     << info.truncation().description();
     }
   }
 
@@ -3252,11 +3273,14 @@ class RepresentationSelector {
   Zone* graph_zone() { return jsgraph_->zone(); }
 };
 
-SimplifiedLowering::SimplifiedLowering(JSGraph* jsgraph, Zone* zone,
+SimplifiedLowering::SimplifiedLowering(JSGraph* jsgraph,
+                                       const JSHeapBroker* js_heap_broker,
+                                       Zone* zone,
                                        SourcePositionTable* source_positions,
                                        NodeOriginTable* node_origins,
                                        PoisoningMitigationLevel poisoning_level)
     : jsgraph_(jsgraph),
+      js_heap_broker_(js_heap_broker),
       zone_(zone),
       type_cache_(TypeCache::Get()),
       source_positions_(source_positions),
@@ -3265,8 +3289,8 @@ SimplifiedLowering::SimplifiedLowering(JSGraph* jsgraph, Zone* zone,
 
 void SimplifiedLowering::LowerAllNodes() {
   RepresentationChanger changer(jsgraph(), jsgraph()->isolate());
-  RepresentationSelector selector(jsgraph(), zone_, &changer, source_positions_,
-                                  node_origins_);
+  RepresentationSelector selector(jsgraph(), js_heap_broker_, zone_, &changer,
+                                  source_positions_, node_origins_);
   selector.Run(this);
 }
 
@@ -3910,9 +3934,9 @@ Operator const* SimplifiedLowering::ToNumberOperator() {
   if (!to_number_operator_.is_set()) {
     Callable callable = Builtins::CallableFor(isolate(), Builtins::kToNumber);
     CallDescriptor::Flags flags = CallDescriptor::kNeedsFrameState;
-    auto call_descriptor = Linkage::GetStubCallDescriptor(
-        isolate(), graph()->zone(), callable.descriptor(), 0, flags,
-        Operator::kNoProperties);
+    auto call_descriptor =
+        Linkage::GetStubCallDescriptor(graph()->zone(), callable.descriptor(),
+                                       0, flags, Operator::kNoProperties);
     to_number_operator_.set(common()->Call(call_descriptor));
   }
   return to_number_operator_.get();
@@ -3922,9 +3946,9 @@ Operator const* SimplifiedLowering::ToNumericOperator() {
   if (!to_numeric_operator_.is_set()) {
     Callable callable = Builtins::CallableFor(isolate(), Builtins::kToNumeric);
     CallDescriptor::Flags flags = CallDescriptor::kNeedsFrameState;
-    auto call_descriptor = Linkage::GetStubCallDescriptor(
-        isolate(), graph()->zone(), callable.descriptor(), 0, flags,
-        Operator::kNoProperties);
+    auto call_descriptor =
+        Linkage::GetStubCallDescriptor(graph()->zone(), callable.descriptor(),
+                                       0, flags, Operator::kNoProperties);
     to_numeric_operator_.set(common()->Call(call_descriptor));
   }
   return to_numeric_operator_.get();