[clang] [clang-tools-extra] [compiler-rt] [flang] [lld] [lldb] [llvm] [mlir] [openmp] [pstl] Finally formalise our defacto line-ending policy (PR #86318)

[Chris B via cfe-commits]

llvm-beanz wrote:

Philosophically I agree with this change, but I think some subprojects may need to adopt specific policies about how they handle files that are expected to be specific line endings. Specifically, Clang needs testing that verifies correct behavior on both CRLF and LF files in some cases, as does LLVM's split-file.

I did a pass a few years ago fixing a bunch of tests that had hard-specified file offsets in them that broke if you had CRLF line endings, and fixing how the correct line ending type was detected (some of the changes are 13fa17db3a720d149bcd0783856347a4f09cf634, 9d3437fbf3419502351d41ff9e28f06b0c3f06e8, ea836c880abcc74d3983fc35de407d647f0a002d, 1c1b0027e86fab2b0877488abc1625a457ca70b3).

Should we come up with an expected filename format that we can use with gitattributes and rename the existing files rather than just listing each file that has special needs by itself?

https://github.com/llvm/llvm-project/pull/86318