1//===- X86MacroFusion.h - X86 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 X86 definition of the DAG scheduling mutation
10/// to pair instructions back to back.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_LIB_TARGET_X86_X86MACROFUSION_H
15#define LLVM_LIB_TARGET_X86_X86MACROFUSION_H
16
17#include <memory>
18
19namespace llvm {
20
21class ScheduleDAGMutation;
22
23/// Note that you have to add:
24/// DAG.addMutation(createX86MacroFusionDAGMutation());
25/// to X86TargetMachine::createMachineScheduler() to have an effect.
26std::unique_ptr<ScheduleDAGMutation>
27createX86MacroFusionDAGMutation();
28
29} // end namespace llvm
30
31#endif
32