[clang] Bfi precision (PR #66285)

[Nikita Popov via cfe-commits]

nikic wrote:

This is a standard release build. The exact cmake config is https://gist.github.com/nikic/1bf97b5b6aade298b87f41cd13bf37d5 where the stage1 build has the same configuration but is built with gcc. I'm testing CTMark, but the impact is quite consistent across the board, so anything will probably do.



https://github.com/llvm/llvm-project/pull/66285