I don't have gcc handy, but this bit of code pretty easily gets clang to use several of them: int f(int **x) { int *a = x[0]; int *b = x[1]; int *c

I don't have gcc handy, but this bit of code pretty easily gets clang to use several of them: int f(int **x) { int *a = x[0]; int *b = x[1]; int *c = x[2]; int *d = x[3]; puts("hello"); return *a + *b + *c + *d; }