| Index: src/x64/lithium-codegen-x64.h | 
| diff --git a/src/x64/lithium-codegen-x64.h b/src/x64/lithium-codegen-x64.h | 
| index e13422950fa6d8641cfef7669dda451ada8ac433..4286d07de74114be174caf4133dab6626c184ab4 100644 | 
| --- a/src/x64/lithium-codegen-x64.h | 
| +++ b/src/x64/lithium-codegen-x64.h | 
| @@ -102,6 +102,7 @@ class LCodeGen BASE_EMBEDDED { | 
| XMMRegister ToDoubleRegister(LOperand* op) const; | 
| bool IsInteger32Constant(LConstantOperand* op) const; | 
| bool IsSmiConstant(LConstantOperand* op) const; | 
| +  int ToRepresentation(LConstantOperand* op, const Representation& r) const; | 
| int32_t ToInteger32(LConstantOperand* op) const; | 
| Smi* ToSmi(LConstantOperand* op) const; | 
| double ToDouble(LConstantOperand* op) const; | 
| @@ -131,7 +132,8 @@ class LCodeGen BASE_EMBEDDED { | 
| void DoDeferredAllocate(LAllocate* instr); | 
| void DoDeferredInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr, | 
| Label* map_check); | 
| -  void DoDeferredInstanceMigration(LCheckMaps* instr, Register object); | 
| + | 
| +  void DoCheckMapCommon(Register reg, Handle<Map> map, LInstruction* instr); | 
|  | 
| // Parallel move support. | 
| void DoParallelMove(LParallelMove* move); | 
| @@ -177,7 +179,7 @@ class LCodeGen BASE_EMBEDDED { | 
|  | 
| int GetStackSlotCount() const { return chunk()->spill_slot_count(); } | 
|  | 
| -  void Abort(BailoutReason reason); | 
| +  void Abort(const char* reason); | 
| void FPRINTF_CHECKING Comment(const char* format, ...); | 
|  | 
| void AddDeferredCode(LDeferredCode* code) { deferred_.Add(code, zone()); } | 
| @@ -266,7 +268,6 @@ class LCodeGen BASE_EMBEDDED { | 
| uint32_t additional_index = 0); | 
|  | 
| void EmitIntegerMathAbs(LMathAbs* instr); | 
| -  void EmitInteger64MathAbs(LMathAbs* instr); | 
|  | 
| // Support for recording safepoint and position information. | 
| void RecordSafepoint(LPointerMap* pointers, | 
|  |