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  1. //===- GuardWidening.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. // Guard widening is an optimization over the @llvm.experimental.guard intrinsic
  10. // that (optimistically) combines multiple guards into one to have fewer checks
  11. // at runtime.
  12. //
  13. //===----------------------------------------------------------------------===//
  14.  
  15. #ifndef LLVM_TRANSFORMS_SCALAR_GUARDWIDENING_H
  16. #define LLVM_TRANSFORMS_SCALAR_GUARDWIDENING_H
  17.  
  18. #include "llvm/Analysis/LoopAnalysisManager.h"
  19. #include "llvm/IR/PassManager.h"
  20.  
  21. namespace llvm {
  22.  
  23. class LPMUpdater;
  24. class Loop;
  25. class Function;
  26.  
  27. struct GuardWideningPass : public PassInfoMixin<GuardWideningPass> {
  28.   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
  29.   PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
  30.                         LoopStandardAnalysisResults &AR, LPMUpdater &U);
  31. };
  32. }
  33.  
  34. #endif // LLVM_TRANSFORMS_SCALAR_GUARDWIDENING_H
  35.