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#include "Halide.h"
#include <iostream>
#include <stdio.h>
using namespace Halide;
bool validate(const Buffer<int> &im, int add) {
// Check the result was what we expected
for (int i = 0; i < im.width(); i++) {
for (int j = 0; j < im.height(); j++) {
int correct = i * j + add;
if (im(i, j) != correct) {
printf("im[%d, %d] = %d instead of %d\n", i, j, im(i, j), correct);
return false;
}
}
}
return true;
}
int main(int argc, char **argv) {
Var x("x"), y("y"), xi("xi"), yi("yi");
Func g("g");
Target target = get_jit_target_from_environment();
{
printf("Defining function f...\n");
Func f("f");
f(x, y) = x * y + 1;
if (target.has_gpu_feature()) {
f.gpu_tile(x, y, xi, yi, 8, 8);
} else if (target.has_feature(Target::HVX)) {
f.hexagon().vectorize(x, 32);
}
{
printf("Realizing function f...\n");
Buffer<int> imf = f.realize({32, 32}, target);
if (!validate(imf, 1)) {
return 1;
}
}
printf("Defining function g...\n");
g(x, y) = x * y + 2;
if (target.has_gpu_feature()) {
g.gpu_tile(x, y, xi, yi, 8, 8);
} else if (target.has_feature(Target::HVX)) {
g.hexagon().vectorize(x, 32);
}
printf("Realizing function g...\n");
Buffer<int> img1 = g.realize({32, 32}, target);
if (!validate(img1, 2)) {
return 1;
}
}
// Try using g again to ensure it is still valid (after f's destruction).
printf("Realizing function g again...\n");
Buffer<int> img2 = g.realize({32, 32}, target);
if (!validate(img2, 2.0f)) {
return 1;
}
printf("Success!\n");
return 0;
}
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