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llvm-mirror/lib/Target/X86/X86MacroFusion.h
Florian Hahn d1d5802289 Recommit rL305677: [CodeGen] Add generic MacroFusion pass
Use llvm::make_unique to avoid ambiguity with MSVC.

This patch adds a generic MacroFusion pass, that is used on X86 and
AArch64, which both define target-specific shouldScheduleAdjacent
functions. This generic pass should make it easier for other targets to
implement macro fusion and I intend to add macro fusion for ARM shortly.

Differential Revision: https://reviews.llvm.org/D34144

llvm-svn: 305690
2017-06-19 12:53:31 +00:00

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//===- X86MacroFusion.h - X86 Macro Fusion --------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
/// \file This file contains the X86 definition of the DAG scheduling mutation
/// to pair instructions back to back.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineScheduler.h"
namespace llvm {
/// Note that you have to add:
/// DAG.addMutation(createX86MacroFusionDAGMutation());
/// to X86PassConfig::createMachineScheduler() to have an effect.
std::unique_ptr<ScheduleDAGMutation>
createX86MacroFusionDAGMutation();
} // end namespace llvm