https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110406
--- Comment #3 from ibuclaw at gcc dot gnu.org --- (In reply to Andrew Pinski from comment #2) > >structs have been set the wrong mode > > No, they don't have wrong mode, just the x86_64 backend is broken, see bug > 102027 comment #7 specifically. I think they do. On 64-bit, I expect the mode set by compute_record_mode to be TImode. However what I'm instead seeing is BLKmode. This tells me I might be calling it too early, and some fields yet to have their DECL_SIZE set.
