llvm/lib/Target/AArch64/AArch64MacroFusion.h

   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