root/test/correctness/code_explosion.cpp

DEFINITIONS

1. main

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

using namespace Halide;

int main(int argc, char **argv) {
    Var x;
    const int size = 100;

    // Try a nest of highly connection funcs all marked inline.
    std::vector<Func> funcs;
    funcs.push_back(lambda(x, cast<uint32_t>(x)));
    funcs.push_back(lambda(x, cast<uint32_t>(x)));
    for (int i = 2; i < size; i++) {
        funcs.push_back(lambda(x, funcs[i-1](x) + funcs[i-2](x)));
    }
    Func g;
    g(x) = funcs[funcs.size()-1](x);
    g.realize(10);

    // Test a nest of highly connected exprs. Compilation will barf if
    // this gets expanded into a tree.
    Func f;
    std::vector<Expr> e(size);

    e[0] = cast<uint32_t>(x);
    e[1] = cast<uint32_t>(x);
    for (size_t i = 2; i < e.size(); i++) {
        e[i] = e[i-1] + e[i-2];
    }

    f(x) = e[e.size()-1];

    f.realize(10);

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