https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93631
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2020-02-10 Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- Confirmed. As said elsewhere the real issue lies in the C FE having this kind of prototypes marked with BUILT-IN.