https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115192
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to Richard Biener from comment #7) > int main() > { > const int n = 3; > float d[n*n]; > float4_t a[n*n]; I'd recommend using #define n 3 or enum { n = 3 }; instead of const int n = 3; so that the arrays aren't unnecessary VLAs.