------- Comment #2 from jakub at gcc dot gnu dot org 2010-07-15 13:15 ------- If we want to be ABI compatible, I'm afraid it needs to be 16 byte aligned only. We don't align aligned(64) structs to 64 bytes either, even with -mavx.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44948
