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#include "Halide.h"
#include <stdio.h>
using namespace Halide;
int main(int argc, char **argv) {
#ifdef WITH_SERIALIZATION_JIT_ROUNDTRIP_TESTING
printf("[SKIP] Serialization won't preserve GPU buffers, skipping.\n");
return 0;
#endif
if (!get_jit_target_from_environment().has_gpu_feature()) {
printf("[SKIP] No GPU target enabled.\n");
return 0;
}
// A sequence of stages which may or may not run on the gpu.
Func f, g, h;
ImageParam in(Int(32), 1);
Var x, xi;
f(x) = in(x) + in(x + 1);
g(x) = f(x * 2);
h(x) = g(x) - 7;
Param<bool> gpu_f, gpu_g, gpu_h;
f.compute_root().specialize(gpu_f).gpu_tile(x, x, xi, 16);
g.compute_root().specialize(gpu_g).gpu_tile(x, x, xi, 16);
h.compute_root().specialize(gpu_h).gpu_tile(x, x, xi, 16);
Buffer<int> out(128), reference(128), input(256);
lambda(x, x * 17 + 43 + x * x).realize(input);
in.set(input);
gpu_f.set(false);
gpu_g.set(false);
gpu_h.set(false);
h.realize(reference);
for (int i = 1; i < 8; i++) {
gpu_f.set((i & 1) != 0);
gpu_g.set((i & 2) != 0);
gpu_h.set((i & 4) != 0);
h.realize(out);
RDom r(out);
uint32_t err = evaluate<uint32_t>(sum(abs(out(r) - reference(r))));
if (err) {
printf("Incorrect results for test %d\n", i);
return 1;
}
}
printf("Success!\n");
return 0;
}
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