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  1. //===- LoopLoadElimination.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. //
  9. /// \file
  10. /// This header defines the LoopLoadEliminationPass object. This pass forwards
  11. /// loaded values around loop backedges to allow their use in subsequent
  12. /// iterations.
  13. //
  14. //===----------------------------------------------------------------------===//
  15.  
  16. #ifndef LLVM_TRANSFORMS_SCALAR_LOOPLOADELIMINATION_H
  17. #define LLVM_TRANSFORMS_SCALAR_LOOPLOADELIMINATION_H
  18.  
  19. #include "llvm/IR/PassManager.h"
  20.  
  21. namespace llvm {
  22.  
  23. class Function;
  24.  
  25. /// Pass to forward loads in a loop around the backedge to subsequent
  26. /// iterations.
  27. struct LoopLoadEliminationPass : public PassInfoMixin<LoopLoadEliminationPass> {
  28.   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
  29. };
  30.  
  31. } // end namespace llvm
  32.  
  33. #endif // LLVM_TRANSFORMS_SCALAR_LOOPLOADELIMINATION_H
  34.