[Bug middle-end/106823] #pragma GCC diagnostic ignored "-Wattribute-warning" doesn't work for -flto

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106823

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think we have a duplicate for this report.