https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70577
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- I think -1 is the right answer, these are flexible array-like arrays, where one could e.g. struct tail0 *p = malloc (sizeof (struct tail0) + 131072 * sizeof (int)); initialize (p); loop0 (131072, p); and similarly for tail1/loop1.