[flang-commits] [flang] [flang] Use precompiled parsing headers (PR #130600)

[David Truby via flang-commits]

DavidTruby wrote:

> Clang is pretty good with this too, so even if you forget to drop it but change the header that was being precompiled clang will let you know that the precompiled header needs to be rebuilt because the source has changed.

FWIW gcc will do the same, and will also warn you if your _flags_ have changed and the pch uses old ones (I think clang does the latter as well, but I haven't checked!)

https://github.com/llvm/llvm-project/pull/130600