llvm/lib/Target/X86/MCA/X86CustomBehaviour.h

   1 //===-------------------- X86CustomBehaviour.h ------------------*-C++ -* -===//
   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 /// \file
   9 ///
  10 /// This file defines the X86CustomBehaviour class which inherits from
  11 /// CustomBehaviour. This class is used by the tool llvm-mca to enforce
  12 /// target specific behaviour that is not expressed well enough in the
  13 /// scheduling model for mca to enforce it automatically.
  14 ///
  15 //===----------------------------------------------------------------------===//
  16
  17 #ifndef LLVM_LIB_TARGET_X86_MCA_X86CUSTOMBEHAVIOUR_H
  18 #define LLVM_LIB_TARGET_X86_MCA_X86CUSTOMBEHAVIOUR_H
  19
  20 #include "llvm/MCA/CustomBehaviour.h"
  21 #include "llvm/TargetParser/TargetParser.h"
  22
  23 namespace llvm {
  24 namespace mca {
  25
  26 class X86InstrPostProcess : public InstrPostProcess {
  27   /// Called within X86InstrPostProcess to specify certain instructions
  28   /// as load and store barriers.
  29   void setMemBarriers(std::unique_ptr<Instruction> &Inst, const MCInst &MCI);
  30
  31 public:
  32   X86InstrPostProcess(const MCSubtargetInfo &STI, const MCInstrInfo &MCII)
  33       : InstrPostProcess(STI, MCII) {}
  34
  35   ~X86InstrPostProcess() = default;
  36
  37   void postProcessInstruction(std::unique_ptr<Instruction> &Inst,
  38                               const MCInst &MCI) override;
  39 };
  40
  41 } // namespace mca
  42 } // namespace llvm
  43
  44 #endif