1 //===- X86MacroFusion.h - X86 Macro Fusion --------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 /// \file This file contains the X86 definition of the DAG scheduling mutation
11 /// to pair instructions back to back.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_LIB_TARGET_X86_X86MACROFUSION_H
16 #define LLVM_LIB_TARGET_X86_X86MACROFUSION_H
18 #include "llvm/CodeGen/MachineScheduler.h"
22 /// Note that you have to add:
23 /// DAG.addMutation(createX86MacroFusionDAGMutation());
24 /// to X86PassConfig::createMachineScheduler() to have an effect.
25 std::unique_ptr<ScheduleDAGMutation>
26 createX86MacroFusionDAGMutation();
28 } // end namespace llvm