https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80286
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Another testcase: typedef int V __attribute__((vector_size (4 * sizeof (int)))); __attribute__((noinline, noclone)) V foo (V x, V y) { return x << y[0]; } int main () { V x = { 1, 2, 3, 4 }; V y = { 5, 6, 7, 8 }; V z = foo (x, y); V e = { 1 << 5, 2 << 5, 3 << 5, 4 << 5 }; if (__builtin_memcmp (&z, &e, sizeof (V))) __builtin_abort (); return 0; }