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  1. //===- IndVarSimplify.h - Induction Variable Simplification -----*- 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. // This file provides the interface for the Induction Variable
  10. // Simplification pass.
  11. //
  12. //===----------------------------------------------------------------------===//
  13.  
  14. #ifndef LLVM_TRANSFORMS_SCALAR_INDVARSIMPLIFY_H
  15. #define LLVM_TRANSFORMS_SCALAR_INDVARSIMPLIFY_H
  16.  
  17. #include "llvm/Analysis/LoopAnalysisManager.h"
  18. #include "llvm/IR/PassManager.h"
  19.  
  20. namespace llvm {
  21.  
  22. class Loop;
  23. class LPMUpdater;
  24.  
  25. class IndVarSimplifyPass : public PassInfoMixin<IndVarSimplifyPass> {
  26.   /// Perform IV widening during the pass.
  27.   bool WidenIndVars;
  28.  
  29. public:
  30.   IndVarSimplifyPass(bool WidenIndVars = true) : WidenIndVars(WidenIndVars) {}
  31.   PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
  32.                         LoopStandardAnalysisResults &AR, LPMUpdater &U);
  33. };
  34.  
  35. } // end namespace llvm
  36.  
  37. #endif // LLVM_TRANSFORMS_SCALAR_INDVARSIMPLIFY_H
  38.