[turbofan][csa] enable write-barrier elimination for raw store nodes

Bug: v8:7793
Change-Id: Ic7a719eb9216d848d7148e4eb8a239c1637e0bb5
Reviewed-on: https://chromium-review.googlesource.com/c/1430064Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59368}

src/compiler/memory-optimizer.cc

@@ -97,6 +97,8 @@ void MemoryOptimizer::VisitNode(Node* node, AllocationState const* state) {
       return VisitStoreElement(node, state);
     case IrOpcode::kStoreField:
       return VisitStoreField(node, state);
+    case IrOpcode::kStore:
+      return VisitStore(node, state);
     case IrOpcode::kBitcastTaggedToWord:
     case IrOpcode::kBitcastWordToTagged:
     case IrOpcode::kComment:
@@ -110,7 +112,6 @@ void MemoryOptimizer::VisitNode(Node* node, AllocationState const* state) {
     case IrOpcode::kProtectedLoad:
     case IrOpcode::kProtectedStore:
     case IrOpcode::kRetain:
-    case IrOpcode::kStore:
     case IrOpcode::kTaggedPoisonOnSpeculation:
     case IrOpcode::kUnalignedLoad:
     case IrOpcode::kUnalignedStore:
@@ -458,6 +459,20 @@ void MemoryOptimizer::VisitStoreField(Node* node,
   EnqueueUses(node, state);
 }
 
+void MemoryOptimizer::VisitStore(Node* node, AllocationState const* state) {
+  DCHECK_EQ(IrOpcode::kStore, node->opcode());
+  StoreRepresentation representation = StoreRepresentationOf(node->op());
+  Node* object = node->InputAt(0);
+  WriteBarrierKind write_barrier_kind = ComputeWriteBarrierKind(
+      object, state, representation.write_barrier_kind());
+  if (write_barrier_kind != representation.write_barrier_kind()) {
+    NodeProperties::ChangeOp(
+        node, machine()->Store(StoreRepresentation(
+                  representation.representation(), write_barrier_kind)));
+  }
+  EnqueueUses(node, state);
+}
+
 void MemoryOptimizer::VisitOtherEffect(Node* node,
                                        AllocationState const* state) {
   EnqueueUses(node, state);

src/compiler/memory-optimizer.h

@@ -117,6 +117,7 @@ class MemoryOptimizer final {
   void VisitLoadField(Node*, AllocationState const*);
   void VisitStoreElement(Node*, AllocationState const*);
   void VisitStoreField(Node*, AllocationState const*);
+  void VisitStore(Node*, AllocationState const*);
   void VisitOtherEffect(Node*, AllocationState const*);
 
   Node* ComputeIndex(ElementAccess const&, Node*);