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      1 //===- AArch64MacroFusion.h - AArch64 Macro Fusion ------------------------===//
      2 //
      3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
      4 // See https://llvm.org/LICENSE.txt for license information.
      5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
      6 //
      7 //===----------------------------------------------------------------------===//
      8 //
      9 /// \file This file contains the AArch64 definition of the DAG scheduling
     10 /// mutation to pair instructions back to back.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef LLVM_LIB_TARGET_AARCH64_AARCH64MACROFUSION_H
     15 #define LLVM_LIB_TARGET_AARCH64_AARCH64MACROFUSION_H
     16 
     17 #include "llvm/CodeGen/MachineScheduler.h"
     18 
     19 namespace llvm {
     20 
     21 /// Note that you have to add:
     22 ///   DAG.addMutation(createAArch64MacroFusionDAGMutation());
     23 /// to AArch64PassConfig::createMachineScheduler() to have an effect.
     24 std::unique_ptr<ScheduleDAGMutation> createAArch64MacroFusionDAGMutation();
     25 
     26 } // llvm
     27 
     28 #endif // LLVM_LIB_TARGET_AARCH64_AARCH64MACROFUSION_H
     29