[turbofan] Introduce TypedObjectState common operator.

src/compiler/simplified-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/compiler/simplified-lowering.h"
 
 #include <limits>
 
 #include "src/address-map.h"
 #include "src/base/bits.h"
@@ skipping 994 matching lines @@
                machine_type.semantic() == MachineSemantic::kInt32 ||
                machine_type.semantic() == MachineSemantic::kUint32);
         (*types)[i] = machine_type;
       }
       NodeProperties::ChangeOp(node,
                                jsgraph_->common()->TypedStateValues(types));
     }
     SetOutput(node, MachineRepresentation::kTagged);
   }
 
+  void VisitObjectState(Node* node) {
+    if (propagate()) {
+      for (int i = 0; i < node->InputCount(); i++) {
+        EnqueueInput(node, i, UseInfo::Any());
+      }
+    } else if (lower()) {
+      Zone* zone = jsgraph_->zone();
+      ZoneVector<MachineType>* types =
+          new (zone->New(sizeof(ZoneVector<MachineType>)))
+              ZoneVector<MachineType>(node->InputCount(), zone);
+      for (int i = 0; i < node->InputCount(); i++) {
+        Node* input = node->InputAt(i);
+        NodeInfo* input_info = GetInfo(input);
+        Type* input_type = TypeOf(input);
+        MachineRepresentation rep = input_type->IsInhabited()
+                                        ? input_info->representation()
+                                        : MachineRepresentation::kNone;
+        MachineType machine_type(rep, DeoptValueSemanticOf(input_type));
+        DCHECK(machine_type.representation() !=
+                   MachineRepresentation::kWord32 ||
+               machine_type.semantic() == MachineSemantic::kInt32 ||
+               machine_type.semantic() == MachineSemantic::kUint32);
+        (*types)[i] = machine_type;
+      }
+      NodeProperties::ChangeOp(node,
+                               jsgraph_->common()->TypedObjectState(types));
+    }
+    SetOutput(node, MachineRepresentation::kTagged);
+  }
+
   const Operator* Int32Op(Node* node) {
     return changer_->Int32OperatorFor(node->opcode());
   }
 
   const Operator* Int32OverflowOp(Node* node) {
     return changer_->Int32OverflowOperatorFor(node->opcode());
   }
 
   const Operator* Uint32Op(Node* node) {
     return changer_->Uint32OperatorFor(node->opcode());
@@ skipping 1424 matching lines @@
         return;
       }
 
       case IrOpcode::kNumberSilenceNaN:
         VisitUnop(node, UseInfo::TruncatingFloat64(),
                   MachineRepresentation::kFloat64);
         if (lower()) NodeProperties::ChangeOp(node, Float64Op(node));
         return;
       case IrOpcode::kStateValues:
         return VisitStateValues(node);
+      case IrOpcode::kObjectState:
+        return VisitObjectState(node);
       case IrOpcode::kTypeGuard: {
         // We just get rid of the sigma here. In principle, it should be
         // possible to refine the truncation and representation based on
         // the sigma's type.
         MachineRepresentation output =
             GetOutputInfoForPhi(node, TypeOf(node->InputAt(0)), truncation);
         VisitUnop(node, UseInfo(output, truncation), output);
         if (lower()) DeferReplacement(node, node->InputAt(0));
         return;
       }
@@ skipping 21 matching lines @@
       case IrOpcode::kDeoptimize:
       case IrOpcode::kEffectPhi:
       case IrOpcode::kTerminate:
       case IrOpcode::kFrameState:
       case IrOpcode::kCheckpoint:
       case IrOpcode::kLoop:
       case IrOpcode::kMerge:
       case IrOpcode::kThrow:
       case IrOpcode::kBeginRegion:
       case IrOpcode::kProjection:
-      case IrOpcode::kObjectState:
       case IrOpcode::kOsrValue:
 // All JavaScript operators except JSToNumber have uniform handling.
 #define OPCODE_CASE(name) case IrOpcode::k##name:
         JS_SIMPLE_BINOP_LIST(OPCODE_CASE)
         JS_OTHER_UNOP_LIST(OPCODE_CASE)
         JS_OBJECT_OP_LIST(OPCODE_CASE)
         JS_CONTEXT_OP_LIST(OPCODE_CASE)
         JS_OTHER_OP_LIST(OPCODE_CASE)
 #undef OPCODE_CASE
       case IrOpcode::kJSToInteger:
@@ skipping 768 matching lines @@
         isolate(), graph()->zone(), callable.descriptor(), 0, flags,
         Operator::kNoProperties);
     to_number_operator_.set(common()->Call(desc));
   }
   return to_number_operator_.get();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8