[PATCH] D154087: Upstream Cygwin Clang patches

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

As Eli said, we need some tests. Also see https://maskray.me/blog/2021-08-08-toolchain-testing#i-dont-know-whether-a-test-is-needed
For other contributors who may improve or refactor the code, without the code they can't know whether their changes will break your functionality.

"I don't know where to add a test" may be relevant. If you don't know where to add a test, comment out some code and run `ninja check-llvm check-clang` to identify test locations.


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https://reviews.llvm.org/D154087