[Bug middle-end/110617] RFE: Add a diagnostic-only variant of nonnull attribute

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110617

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think a -f... option to disable the code generation effects would make more
sense than adding another attribute kind.