[PATCH] D78589: [lit] Add an option to print all features used in tests

[Louis Dionne via Phabricator via llvm-commits]

ldionne added a comment.

As explained in the commit message, the main goal of this feature is to allow cleaning up Lit test suites that accumulate old markup. This allowed me to remove several unused features from the libc++ test suite, and also to find out some mistakes (e.g. some tests were requiring `C++14` instead of `c++14`, and were never run). While this may seem trivial for a small test suite, it's actually very useful to have this programmatic tool for large test suites like libc++'s.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D78589/new/

https://reviews.llvm.org/D78589