File: DisableLoopUnrollOnRetry.hpp

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intel-graphics-compiler2 2.28.4-4
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/*========================== begin_copyright_notice ============================

Copyright (C) 2019-2021 Intel Corporation

SPDX-License-Identifier: MIT

============================= end_copyright_notice ===========================*/

#pragma once

#include "common/LLVMWarningsPush.hpp"
#include <llvm/Pass.h>
#include <llvm/Analysis/LoopPass.h>
#include <llvm/Transforms/Utils/UnrollLoop.h>
#include "common/LLVMWarningsPop.hpp"

using namespace llvm;

namespace IGC {
/// @brief  Disables loop unroll for each loop by setting llvm.loop.unroll.disable
class DisableLoopUnrollOnRetry : public LoopPass {
public:
  static char ID;

  DisableLoopUnrollOnRetry();

  virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const { AU.setPreservesCFG(); }

  virtual StringRef getPassName() const { return "DisableLoopUnrollOnRetry"; }

  virtual bool runOnLoop(Loop *L, LPPassManager &LPM);
};

} // namespace IGC