https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118952
--- Comment #2 from ktkachov at gcc dot gnu.org --- (In reply to Richard Sandiford from comment #1) > I think this is essentially the same problem as PR34678. Thanks, yeah I don't see PR34678 getting generally resolved any time soon. Is there something we could do with these particular builtins to make them a stronger optimisation/reordering barrier in the meantime though?