[PATCH] D61178: caseFoldingDjbHash: simplify and make the US-ASCII fast path faster

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

  if (Optional<uint32_t> Result = fastCaseFoldingDjbHash(Buffer, H))
    return *Result;

doesn't have a negative performance impact. Switched to that form.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D61178/new/

https://reviews.llvm.org/D61178