#include "Halide.h"
#include <stdio.h>
using namespace Halide;
int main(int argc, char **argv) {
Func f0, f1, f2, g("g"), out("out");
Var x("x"), y("y");
f0(x, y) = 0;
f1(x, y) = 1;
f2(x, y) = 2;
g(x, y) = 0;
g(x, x) = g(x, x - 1) + g(x, x + 1) + f0(x, x);
g(y, y) = g(y - 1, y) + g(y + 1, y) + f1(y, y);
g(x, x) = g(x, x - 1) + g(x, x + 1) + f2(x, x);
out(x, y) = g(x - 1, y - 1) + g(x + 1, y + 1);
g.store_root().compute_at(out, x);
f0.store_at(out, x).compute_at(g, x);
f1.store_at(out, x).compute_at(g, y);
f2.store_at(out, x).compute_at(g, x);
out.realize({10, 10});
// We just want this to not segfault.
printf("Success!\n");
return 0;
}