https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108404
--- Comment #7 from Gaius Mulley <gaius at gcc dot gnu.org> --- I wonder if this bug has now been fixed via the other PR fixes. Specifically the rewrite of RTco.cc, the defensive use of select, bugfixes to HIGH and FIO.mod (memcpy parameters)? It might be worth a re-run just to explore the effect of these fixes.