https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89731
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Reduced testcase: typedef int __v8si __attribute__((__vector_size__(8 * sizeof (int)))); void bar (int); void foo (void) { register __v8si b asm("ymm0"); for (int c = 0; c < 4; ++c) bar (b[c]); }