[turbofan] Add a debug_name to Parameter operators.

src/compiler/instruction-selector.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.h"
 
 #include <limits>
 
 #include "src/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
@@ skipping 591 matching lines @@
     case IrOpcode::kIfDefault:
     case IrOpcode::kEffectPhi:
     case IrOpcode::kMerge:
       // No code needed for these graph artifacts.
       return;
     case IrOpcode::kIfException:
       return MarkAsReference(node), VisitIfException(node);
     case IrOpcode::kFinish:
       return MarkAsReference(node), VisitFinish(node);
     case IrOpcode::kParameter: {
-      MachineType type = linkage()->GetParameterType(OpParameter<int>(node));
+      MachineType type =
+          linkage()->GetParameterType(ParameterIndexOf(node->op()));
       MarkAsRepresentation(type, node);
       return VisitParameter(node);
     }
     case IrOpcode::kOsrValue:
       return MarkAsReference(node), VisitOsrValue(node);
     case IrOpcode::kPhi: {
       MachineType type = OpParameter<MachineType>(node);
       MarkAsRepresentation(type, node);
       return VisitPhi(node);
     }
@@ skipping 338 matching lines @@
 
 void InstructionSelector::VisitFinish(Node* node) {
   OperandGenerator g(this);
   Node* value = node->InputAt(0);
   Emit(kArchNop, g.DefineSameAsFirst(node), g.Use(value));
 }
 
 
 void InstructionSelector::VisitParameter(Node* node) {
   OperandGenerator g(this);
-  int index = OpParameter<int>(node);
+  int index = ParameterIndexOf(node->op());
   Emit(kArchNop,
        g.DefineAsLocation(node, linkage()->GetParameterLocation(index),
                           linkage()->GetParameterType(index)));
 }
 
 
 void InstructionSelector::VisitIfException(Node* node) {
   OperandGenerator g(this);
   Node* call = node->InputAt(0);
   DCHECK_EQ(IrOpcode::kCall, call->opcode());
@@ skipping 217 matching lines @@
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
   return MachineOperatorBuilder::Flag::kNoFlags;
 }
 
 #endif  // !V8_TURBOFAN_BACKEND
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8