nudt-compiler-cpp/test/test_case/testdata2026/performance/optimization_scheduling2.sy

int dependent_computation(int iterations) {
    int a = 1, b = 2, c = 3, d = 4;
    int i = 0;
    while (i < iterations) {  
        a = a + b;
        b = b + c;
        c = c + d;
        d = d + a;
        i = i + 1;  
    }
    return a + b + c + d; 
}

int independent_computation(int iterations) {
    int a = 1, b = 2, c = 3, d = 4;
    int i = 0;
    while (i < iterations) {  
        int a_new = a + b;
        int b_new = b + c;
        int c_new = c + d;
        int d_new = d + a; 
        
        a = a_new;
        b = b_new;
        c = c_new;
        d = d_new;
        
        i = i + 1;  
    }
    return a + b + c + d;
}


int main() {
    int res_dep, res_indep;
    int iterations;
    iterations = getint();

    starttime();
    res_dep = dependent_computation(iterations);
    res_indep = independent_computation(iterations);
    stoptime();
    
    putint(res_dep);
    putch(10);
    putint(res_indep);
    putch(10);

    return 0;
}