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1 //===- X86MacroFusion.h - X86 Macro Fusion --------------------------------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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121
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 /// \file This file contains the X86 definition of the DAG scheduling mutation
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10 /// to pair instructions back to back.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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147
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14 #ifndef LLVM_LIB_TARGET_X86_X86MACROFUSION_H
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15 #define LLVM_LIB_TARGET_X86_X86MACROFUSION_H
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16
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121
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17 #include "llvm/CodeGen/MachineScheduler.h"
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18
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19 namespace llvm {
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20
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21 /// Note that you have to add:
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22 /// DAG.addMutation(createX86MacroFusionDAGMutation());
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23 /// to X86PassConfig::createMachineScheduler() to have an effect.
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24 std::unique_ptr<ScheduleDAGMutation>
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25 createX86MacroFusionDAGMutation();
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26
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27 } // end namespace llvm
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147
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28
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29 #endif
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