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#include "Halide.h"
#include <stdio.h>
using namespace Halide;
int main(int argc, char **argv) {
Func f("f"), g("g"), h("h");
Var x("x"), y("y");
h(x) = x;
g(x) = h(x - 1) + h(x + 1);
f(x, y) = (g(x - 1) + g(x + 1)) + y;
h.compute_root();
g.compute_root();
Target target = get_jit_target_from_environment();
if (target.has_gpu_feature()) {
Var xo("xo"), yo("yo"), xi("xi"), yi("yi");
f.gpu_tile(x, y, xo, yo, xi, yi, 16, 16);
g.gpu_tile(x, xo, xi, 128);
h.gpu_tile(x, xo, xi, 128);
} else if (target.has_feature(Target::HVX)) {
f.hexagon().vectorize(x, 32);
g.hexagon().vectorize(x, 32);
h.hexagon().vectorize(x, 32);
}
Buffer<int> out = f.realize({32, 32}, target);
for (int y = 0; y < 32; y++) {
for (int x = 0; x < 32; x++) {
if (out(x, y) != x * 4 + y) {
printf("out(%d, %d) = %d instead of %d\n", x, y, out(x, y), x * 4 + y);
return 1;
}
}
}
printf("Success!\n");
return 0;
}
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