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  1. //===---------------- ARMTargetParserCommon ---------------------*- 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. // Code that is common to ARMTargetParser and AArch64TargetParser.
  10. //
  11. //===----------------------------------------------------------------------===//
  12.  
  13. #ifndef LLVM_TARGETPARSER_ARMTARGETPARSERCOMMON_H
  14. #define LLVM_TARGETPARSER_ARMTARGETPARSERCOMMON_H
  15.  
  16. #include "llvm/ADT/StringRef.h"
  17.  
  18. namespace llvm {
  19. namespace ARM {
  20.  
  21. enum class ISAKind { INVALID = 0, ARM, THUMB, AARCH64 };
  22.  
  23. enum class EndianKind { INVALID = 0, LITTLE, BIG };
  24.  
  25. /// Converts e.g. "armv8" -> "armv8-a"
  26. StringRef getArchSynonym(StringRef Arch);
  27.  
  28. /// MArch is expected to be of the form (arm|thumb)?(eb)?(v.+)?(eb)?, but
  29. /// (iwmmxt|xscale)(eb)? is also permitted. If the former, return
  30. /// "v.+", if the latter, return unmodified string, minus 'eb'.
  31. /// If invalid, return empty string.
  32. StringRef getCanonicalArchName(StringRef Arch);
  33.  
  34. // ARM, Thumb, AArch64
  35. ISAKind parseArchISA(StringRef Arch);
  36.  
  37. // Little/Big endian
  38. EndianKind parseArchEndian(StringRef Arch);
  39.  
  40. struct ParsedBranchProtection {
  41.   StringRef Scope;
  42.   StringRef Key;
  43.   bool BranchTargetEnforcement;
  44. };
  45.  
  46. bool parseBranchProtection(StringRef Spec, ParsedBranchProtection &PBP,
  47.                            StringRef &Err);
  48.  
  49. } // namespace ARM
  50. } // namespace llvm
  51. #endif
  52.