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1 //===- X86MacroFusion.h - X86 Macro Fusion --------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 /// \file This file contains the X86 definition of the DAG scheduling mutation
11 ///  to pair instructions back to back.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #include "llvm/CodeGen/MachineScheduler.h"
16 
17 namespace llvm {
18 
19 /// Note that you have to add:
20 ///   DAG.addMutation(createX86MacroFusionDAGMutation());
21 /// to X86PassConfig::createMachineScheduler() to have an effect.
22 std::unique_ptr<ScheduleDAGMutation>
23 createX86MacroFusionDAGMutation();
24 
25 } // end namespace llvm
26