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  1. //===- Local.h - Functions to perform local transformations -----*- 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 family of functions perform various local transformations to the
  10. // program.
  11. //
  12. //===----------------------------------------------------------------------===//
  13.  
  14. #ifndef LLVM_ANALYSIS_UTILS_LOCAL_H
  15. #define LLVM_ANALYSIS_UTILS_LOCAL_H
  16.  
  17. namespace llvm {
  18.  
  19. class DataLayout;
  20. class IRBuilderBase;
  21. class User;
  22. class Value;
  23.  
  24. /// Given a getelementptr instruction/constantexpr, emit the code necessary to
  25. /// compute the offset from the base pointer (without adding in the base
  26. /// pointer). Return the result as a signed integer of intptr size.
  27. /// When NoAssumptions is true, no assumptions about index computation not
  28. /// overflowing is made.
  29. Value *emitGEPOffset(IRBuilderBase *Builder, const DataLayout &DL, User *GEP,
  30.                      bool NoAssumptions = false);
  31.  
  32. } // namespace llvm
  33.  
  34. #endif // LLVM_ANALYSIS_UTILS_LOCAL_H
  35.