Enable stub generation using Hydrogen/Lithium (again)

src/x64/lithium-x64.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 232 matching lines @@
 
   void set_pointer_map(LPointerMap* p) { pointer_map_.set(p); }
   LPointerMap* pointer_map() const { return pointer_map_.get(); }
   bool HasPointerMap() const { return pointer_map_.is_set(); }
 
   void set_hydrogen_value(HValue* value) { hydrogen_value_ = value; }
   HValue* hydrogen_value() const { return hydrogen_value_; }
 
   void MarkAsCall() { is_call_ = true; }
 
+  // Interface to the register allocator and iterators.
+  bool ClobbersTemps() const { return is_call_; }
+  bool ClobbersRegisters() const { return is_call_; }
+  bool ClobbersDoubleRegisters() const { return is_call_; }
+
   virtual void SetDeferredLazyDeoptimizationEnvironment(LEnvironment* env) { }
 
   // Interface to the register allocator and iterators.
   bool IsMarkedAsCall() const { return is_call_; }
 
   virtual bool HasResult() const = 0;
   virtual LOperand* result() = 0;
 
   LOperand* FirstInput() { return InputAt(0); }
   LOperand* Output() { return HasResult() ? result() : NULL; }
@@ skipping 1975 matching lines @@
 
   void MarkSpilledRegister(int allocation_index, LOperand* spill_operand);
   void MarkSpilledDoubleRegister(int allocation_index,
                                  LOperand* spill_operand);
 
  private:
   // Arrays of spill slot operands for registers with an assigned spill
   // slot, i.e., that must also be restored to the spill slot on OSR entry.
   // NULL if the register has no assigned spill slot.  Indexed by allocation
   // index.
-  LOperand* register_spills_[Register::kNumAllocatableRegisters];
-  LOperand* double_register_spills_[DoubleRegister::kNumAllocatableRegisters];
+  LOperand* register_spills_[Register::kMaxNumAllocatableRegisters];
+  LOperand* double_register_spills_[
+      DoubleRegister::kMaxNumAllocatableRegisters];
 };
 
 
 class LStackCheck: public LTemplateInstruction<0, 0, 0> {
  public:
   DECLARE_CONCRETE_INSTRUCTION(StackCheck, "stack-check")
   DECLARE_HYDROGEN_ACCESSOR(StackCheck)
 
   Label* done_label() { return &done_label_; }
 
@@ skipping 225 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::int
 
 #endif  // V8_X64_LITHIUM_X64_H_