[libcxx-commits] [clang] [libcxx] [C++20] [Modules] Convert '-fexperimental-modules-reduced-bmi' to '-fmodules-reduced-bmi' (PR #114382)

[Matheus Izvekov via libcxx-commits]

mizvekov wrote:

I still find the current approach wrt the warning to be odd, we would basically force every modules user to change their command line, either by adding the new `-fmodules-reduced-bmi`,  or add `-Wno-wathever` to suppress the warning, or just learn to live with the warning I guess.

I can't recall prior art on this.

If we think this has such a high chance of causing breakages, perhaps we shouldn't warn at all. Otherwise, we should just change the default.

https://github.com/llvm/llvm-project/pull/114382