https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65486
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |ice-on-valid-code Target| |x86_64-*-* Status|UNCONFIRMED |NEW Last reconfirmed| |2015-03-20 Component|c |target Ever confirmed|0 |1 --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- Confirmed. On i?86 you'll get t.c:1:1: error: vector size not an integral multiple of component size typedef long double a __attribute__((vector_size (32))); ^ (because sizeof(long double) == 12 there)