https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102600
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Last reconfirmed| |2021-10-05 CC| |nathan at gcc dot gnu.org Known to fail| |11.2.1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Confirmed. The enumeral type 'byte' ends up without TYPE_MIN/MAX_VALUE which are eventually not streamed to the module or not re-built at read-in time. I do see TYPE_MIN/MAX_VALUE being processed in the module code so it must go wrong elsewhere (maybe at write-out time they are not present?).