[turbofan] Machine operators are globally shared singletons.

src/compiler/js-generic-lowering.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/code-stubs.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph-inl.h"
 #include "src/compiler/js-generic-lowering.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node-aux-data-inl.h"
@@ skipping 472 matching lines @@
   for (int i = 0; i < access.depth(); ++i) {
     node->ReplaceInput(
         0, graph()->NewNode(
                machine()->Load(kMachAnyTagged),
                NodeProperties::GetValueInput(node, 0),
                Int32Constant(Context::SlotOffset(Context::PREVIOUS_INDEX)),
                NodeProperties::GetEffectInput(node)));
   }
   node->ReplaceInput(2, NodeProperties::GetValueInput(node, 1));
   node->ReplaceInput(1, Int32Constant(Context::SlotOffset(access.index())));
-  PatchOperator(node, machine()->Store(kMachAnyTagged, kFullWriteBarrier));
+  PatchOperator(node, machine()->Store(StoreRepresentation(kMachAnyTagged,
+                                                           kFullWriteBarrier)));
   return node;
 }
 
 
 Node* JSGenericLowering::LowerJSCallConstruct(Node* node) {
   int arity = OpParameter<int>(node);
   CallConstructStub stub(isolate(), NO_CALL_CONSTRUCTOR_FLAGS);
   CallInterfaceDescriptor d = stub.GetCallInterfaceDescriptor();
   CallDescriptor* desc =
       linkage()->GetStubCallDescriptor(d, arity, FlagsForNode(node));
@@ skipping 24 matching lines @@
 Node* JSGenericLowering::LowerJSCallRuntime(Node* node) {
   Runtime::FunctionId function = OpParameter<Runtime::FunctionId>(node);
   int arity = OperatorProperties::GetValueInputCount(node->op());
   ReplaceWithRuntimeCall(node, function, arity);
   return node;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8