[turbofan] Machine operators are globally shared singletons.

src/compiler/x64/instruction-selector-x64.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/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
@@ skipping 38 matching lines @@
         return !isolate()->heap()->InNewSpace(*value.handle());
       }
       default:
         return false;
     }
   }
 };
 
 
 void InstructionSelector::VisitLoad(Node* node) {
-  MachineType rep = RepresentationOf(OpParameter<MachineType>(node));
-  MachineType typ = TypeOf(OpParameter<MachineType>(node));
+  MachineType rep = RepresentationOf(OpParameter<LoadRepresentation>(node));
+  MachineType typ = TypeOf(OpParameter<LoadRepresentation>(node));
   X64OperandGenerator g(this);
   Node* base = node->InputAt(0);
   Node* index = node->InputAt(1);
 
   ArchOpcode opcode;
   // TODO(titzer): signed/unsigned small loads
   switch (rep) {
     case kRepFloat32:
       opcode = kX64Movss;
       break;
@@ skipping 33 matching lines @@
 }
 
 
 void InstructionSelector::VisitStore(Node* node) {
   X64OperandGenerator g(this);
   Node* base = node->InputAt(0);
   Node* index = node->InputAt(1);
   Node* value = node->InputAt(2);
 
   StoreRepresentation store_rep = OpParameter<StoreRepresentation>(node);
-  MachineType rep = RepresentationOf(store_rep.machine_type);
-  if (store_rep.write_barrier_kind == kFullWriteBarrier) {
+  MachineType rep = RepresentationOf(store_rep.machine_type());
+  if (store_rep.write_barrier_kind() == kFullWriteBarrier) {
     DCHECK(rep == kRepTagged);
     // TODO(dcarney): refactor RecordWrite function to take temp registers
     //                and pass them here instead of using fixed regs
     // TODO(dcarney): handle immediate indices.
     InstructionOperand* temps[] = {g.TempRegister(rcx), g.TempRegister(rdx)};
     Emit(kX64StoreWriteBarrier, NULL, g.UseFixed(base, rbx),
          g.UseFixed(index, rcx), g.UseFixed(value, rdx), arraysize(temps),
          temps);
     return;
   }
-  DCHECK_EQ(kNoWriteBarrier, store_rep.write_barrier_kind);
+  DCHECK_EQ(kNoWriteBarrier, store_rep.write_barrier_kind());
   InstructionOperand* val;
   if (g.CanBeImmediate(value)) {
     val = g.UseImmediate(value);
   } else if (rep == kRepWord8 || rep == kRepBit) {
     val = g.UseByteRegister(value);
   } else {
     val = g.UseRegister(value);
   }
   ArchOpcode opcode;
   switch (rep) {
@@ skipping 585 matching lines @@
     DCHECK(deoptimization == NULL && continuation == NULL);
     Emit(kArchDrop |
              MiscField::encode(static_cast<int>(buffer.pushed_nodes.size())),
          NULL);
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8