https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82210
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- This changed with r146817, so I'd look at a problem in expansion rather than much earlier. DECL_SIZE_UNIT should match what sizeof is, so you can't just change it at will, it is part of the ABI. Arrays of overaligned structures are just weird, but I believe they don't grow the size of the elements, so only the first array element is aligned and the remaining ones are not.
