[turbofan] Debug-time helpers for regalloc data structures

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/zone-containers.h"
@@ skipping 612 matching lines @@
 
   bool ExistsUseWithoutDefinition();
 
   void MarkAllocated(RegisterKind kind, int index);
 
   PhiMapValue* InitializePhiMap(const InstructionBlock* block,
                                 PhiInstruction* phi);
   PhiMapValue* GetPhiMapValueFor(int virtual_register);
   bool IsBlockBoundary(LifetimePosition pos) const;
 
+  void Print(const InstructionSequence* instructionSequence);
+  void Print(const Instruction* instruction);
+  void Print(const LiveRange* range, bool with_children = false);
+  void Print(const InstructionOperand& op);
+  void Print(const MoveOperands* move);
+
  private:
   Zone* const allocation_zone_;
   Frame* const frame_;
   InstructionSequence* const code_;
   const char* const debug_name_;
   const RegisterConfiguration* const config_;
   PhiMap phi_map_;
   ZoneVector<BitVector*> live_in_sets_;
   ZoneVector<LiveRange*> live_ranges_;
   ZoneVector<LiveRange*> fixed_live_ranges_;
@@ skipping 297 matching lines @@
   RegisterAllocationData* const data_;
 
   DISALLOW_COPY_AND_ASSIGN(LiveRangeConnector);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_REGISTER_ALLOCATOR_H_