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 X86PassConfig::createMachineScheduler() to have an effect. 26std::unique_ptr<ScheduleDAGMutation> 27createX86MacroFusionDAGMutation(); 28 29} // end namespace llvm 30 31#endif 32