[PATCH] D122569: [lit] Support %if ... %else syntax for RUN lines

[Dan Liew via Phabricator via llvm-commits]

delcypher added a comment.

Is

  FileCheck %s --check-prefix={%if windows {W} else {NON-W}}

the main motivating example? You can already solve that by introducing a `%check_prefix` substitution in your `lit.cfg.py` file and expanding it to the correct thing depending on your platform. Would that suffice?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122569/new/

https://reviews.llvm.org/D122569