https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69368
--- Comment #70 from Jakub Jelinek <jakub at gcc dot gnu.org> --- If you want to go this way, I'd at least key it off DECL_COMMON on the decl. And instead of multiplying max_size by 2 perhaps just add BITS_PER_UNIT? And only if it is equal to size?
