[turbofan] cleanup InstructionOperand a little

src/compiler/register-allocator.h

 // 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.
 
 #ifndef V8_REGISTER_ALLOCATOR_H_
 #define V8_REGISTER_ALLOCATOR_H_
 
 #include "src/compiler/instruction.h"
 #include "src/zone-containers.h"
 
@@ skipping 197 matching lines @@
 };
 
 class SpillRange;
 
 
 // TODO(dcarney): remove this cache.
 class InstructionOperandCache FINAL : public ZoneObject {
  public:
   InstructionOperandCache();
 
-  InstructionOperand* RegisterOperand(int index) {
+  RegisterOperand* GetRegisterOperand(int index) {
     DCHECK(index >= 0 &&
            index < static_cast<int>(arraysize(general_register_operands_)));
-    return &general_register_operands_[index];
+    return RegisterOperand::cast(&general_register_operands_[index]);
   }
-  InstructionOperand* DoubleRegisterOperand(int index) {
+  DoubleRegisterOperand* GetDoubleRegisterOperand(int index) {
     DCHECK(index >= 0 &&
            index < static_cast<int>(arraysize(double_register_operands_)));
-    return &double_register_operands_[index];
+    return DoubleRegisterOperand::cast(&double_register_operands_[index]);
   }
 
  private:
   InstructionOperand
       general_register_operands_[RegisterConfiguration::kMaxGeneralRegisters];
   InstructionOperand
       double_register_operands_[RegisterConfiguration::kMaxDoubleRegisters];
 
   DISALLOW_COPY_AND_ASSIGN(InstructionOperandCache);
 };
@@ skipping 101 matching lines @@
   bool HasNoSpillType() const { return spill_type_ == SpillType::kNoSpillType; }
   bool HasSpillOperand() const {
     return spill_type_ == SpillType::kSpillOperand;
   }
   bool HasSpillRange() const { return spill_type_ == SpillType::kSpillRange; }
 
   void SpillAtDefinition(Zone* zone, int gap_index,
                          InstructionOperand* operand);
   void SetSpillOperand(InstructionOperand* operand);
   void SetSpillRange(SpillRange* spill_range);
-  void CommitSpillOperand(InstructionOperand* operand);
+  void CommitSpillOperand(AllocatedOperand* operand);
   void CommitSpillsAtDefinition(InstructionSequence* sequence,
                                 InstructionOperand* operand,
                                 bool might_be_duplicated);
 
   void SetSpillStartIndex(int start) {
     spill_start_index_ = Min(start, spill_start_index_);
   }
 
   bool ShouldBeAllocatedBefore(const LiveRange* other) const;
   bool CanCover(LifetimePosition position) const;
@@ skipping 57 matching lines @@
 
 
 class SpillRange FINAL : public ZoneObject {
  public:
   SpillRange(LiveRange* range, Zone* zone);
 
   UseInterval* interval() const { return use_interval_; }
   RegisterKind Kind() const { return live_ranges_[0]->Kind(); }
   bool IsEmpty() const { return live_ranges_.empty(); }
   bool TryMerge(SpillRange* other);
-  void SetOperand(InstructionOperand* op);
+  void SetOperand(AllocatedOperand* op);
 
  private:
   LifetimePosition End() const { return end_position_; }
   ZoneVector<LiveRange*>& live_ranges() { return live_ranges_; }
   bool IsIntersectingWith(SpillRange* other) const;
   // Merge intervals, making sure the use intervals are sorted
   void MergeDisjointIntervals(UseInterval* other);
 
   ZoneVector<LiveRange*> live_ranges_;
   UseInterval* use_interval_;
@@ skipping 248 matching lines @@
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(RegisterAllocator);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_REGISTER_ALLOCATOR_H_