|  | //===- X86MacroFusion.h - X86 Macro Fusion --------------------------------===// | 
|  | // | 
|  | //                     The LLVM Compiler Infrastructure | 
|  | // | 
|  | // This file is distributed under the University of Illinois Open Source | 
|  | // License. See LICENSE.TXT for details. | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  | // | 
|  | /// \file This file contains the X86 definition of the DAG scheduling mutation | 
|  | ///  to pair instructions back to back. | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | #include "llvm/CodeGen/MachineScheduler.h" | 
|  |  | 
|  | namespace llvm { | 
|  |  | 
|  | /// Note that you have to add: | 
|  | ///   DAG.addMutation(createX86MacroFusionDAGMutation()); | 
|  | /// to X86PassConfig::createMachineScheduler() to have an effect. | 
|  | std::unique_ptr<ScheduleDAGMutation> | 
|  | createX86MacroFusionDAGMutation(); | 
|  |  | 
|  | } // end namespace llvm |