File: HandleLoadStoreInstructions.hpp

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/*========================== begin_copyright_notice ============================

Copyright (C) 2017-2021 Intel Corporation

SPDX-License-Identifier: MIT

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

#pragma once

#include "Compiler/CodeGenContextWrapper.hpp"

#include "common/LLVMWarningsPush.hpp"
#include <llvm/Pass.h>
#include <llvm/IR/InstVisitor.h>
#include "common/LLVMWarningsPop.hpp"

namespace IGC {
/// @brief  This pass converts store/load on doubles into store/loads on i32 or float types.
class HandleLoadStoreInstructions : public llvm::FunctionPass,
                                    public llvm::InstVisitor<HandleLoadStoreInstructions, void> {
public:
  // Pass identification, replacement for typeid
  static char ID;

  /// @brief  Constructor
  HandleLoadStoreInstructions();

  /// @brief  Destructor
  ~HandleLoadStoreInstructions() {}

  /// @brief  Provides name of pass
  virtual llvm::StringRef getPassName() const override { return "HandleLoadStoreInstructionsPass"; }

  /// @brief  Main entry point.
  /// @param  F The destination function.
  virtual bool runOnFunction(llvm::Function &F) override;
  void visitLoadInst(llvm::LoadInst &I);
  void visitStoreInst(llvm::StoreInst &I);

  virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const override {}

protected:
  void HandleLoadStore();

  /// @brief  Indicates if the pass changed the processed function
  bool m_changed = false;
};

} // namespace IGC