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  1. //===--- LoopWidening.h - Widen loops ---------------------------*- 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. /// \file
  9. /// This header contains the declarations of functions which are used to widen
  10. /// loops which do not otherwise exit. The widening is done by invalidating
  11. /// anything which might be modified by the body of the loop.
  12. ///
  13. //===----------------------------------------------------------------------===//
  14.  
  15. #ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_LOOPWIDENING_H
  16. #define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_LOOPWIDENING_H
  17.  
  18. #include "clang/Analysis/CFG.h"
  19. #include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
  20.  
  21. namespace clang {
  22. namespace ento {
  23.  
  24. /// Get the states that result from widening the loop.
  25. ///
  26. /// Widen the loop by invalidating anything that might be modified
  27. /// by the loop body in any iteration.
  28. ProgramStateRef getWidenedLoopState(ProgramStateRef PrevState,
  29.                                     const LocationContext *LCtx,
  30.                                     unsigned BlockCount, const Stmt *LoopStmt);
  31.  
  32. } // end namespace ento
  33. } // end namespace clang
  34.  
  35. #endif
  36.