root/test/correctness/bounds_inference_chunk.cpp

DEFINITIONS

1. main

#include <stdio.h>
#include "Halide.h"

using namespace Halide;

int main(int argc, char **argv) {

    Func f, g, h; Var x, y;

    h(x, y) = x + y;
    g(x, y) = (h(x-1, y-1) + h(x+1, y+1))/2;
    f(x, y) = (g(x-1, y-1) + g(x+1, y+1))/2;

    h.compute_root();
    g.compute_at(f, y);

    //f.trace();

    Buffer<int> out = f.realize(32, 32);

    for (int y = 0; y < 32; y++) {
        for (int x = 0; x < 32; x++) {
            if (out(x, y) != x + y) {
                printf("out(%d, %d) = %d instead of %d\n", x, y, out(x, y), x+y);
                return -1;
            }
        }
    }

    printf("Success!\n");
    return 0;
}