RegisterAllocator: Clean up before adding aliasing.

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/ostreams.h"
 #include "src/register-configuration.h"
@@ skipping 228 matching lines @@
   kOperand,
   kUsePos,
   kPhi,
   kUnresolved
 };
 
 
 static const int32_t kUnassignedRegister =
     RegisterConfiguration::kMaxGeneralRegisters;
 
-
-static_assert(kUnassignedRegister <= RegisterConfiguration::kMaxDoubleRegisters,
+static_assert(kUnassignedRegister <= RegisterConfiguration::kMaxFPRegisters,
               "kUnassignedRegister too small");
 
-
 // Representation of a use position.
 class UsePosition final : public ZoneObject {
  public:
   UsePosition(LifetimePosition pos, InstructionOperand* operand, void* hint,
               UsePositionHintType hint_type);
 
   InstructionOperand* operand() const { return operand_; }
   bool HasOperand() const { return operand_ != nullptr; }
 
   bool RegisterIsBeneficial() const {
@@ skipping 588 matching lines @@
 
  private:
   int GetNextLiveRangeId();
 
   Zone* const allocation_zone_;
   Frame* const frame_;
   InstructionSequence* const code_;
   const char* const debug_name_;
   const RegisterConfiguration* const config_;
   PhiMap phi_map_;
-  ZoneVector<int> allocatable_codes_;
-  ZoneVector<int> allocatable_double_codes_;
   ZoneVector<BitVector*> live_in_sets_;
   ZoneVector<BitVector*> live_out_sets_;
   ZoneVector<TopLevelLiveRange*> live_ranges_;
   ZoneVector<TopLevelLiveRange*> fixed_live_ranges_;
   ZoneVector<TopLevelLiveRange*> fixed_double_live_ranges_;
   ZoneVector<SpillRange*> spill_ranges_;
   DelayedReferences delayed_references_;
   BitVector* assigned_registers_;
   BitVector* assigned_double_registers_;
   int virtual_register_count_;
@@ skipping 323 matching lines @@
   RegisterAllocationData* const data_;
 
   DISALLOW_COPY_AND_ASSIGN(LiveRangeConnector);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_REGISTER_ALLOCATOR_H_