1 // RUN: %libomptarget-compilexx-and-run-generic
2 
3 // UNSUPPORTED: x86_64-pc-linux-gnu
4 // UNSUPPORTED: x86_64-pc-linux-gnu-newDriver
5 
6 #include <cmath>
7 #include <cstdlib>
8 #include <iostream>
9 
10 bool almost_equal(float x, float gold, float tol) {
11   if (std::signbit(x) != std::signbit(gold))
12     x = std::abs(gold) - std::abs(x);
13 
14   return std::abs(gold) * (1 - tol) <= std::abs(x) &&
15          std::abs(x) <= std::abs(gold) * (1 + tol);
16 }
17 
18 int main(int argc, char *argv[]) {
19   constexpr const int N0{2};
20   constexpr const int N1{182};
21   constexpr const float expected_value{N0 * N1};
22   float counter_N0{};
23 
24 #pragma omp target data map(tofrom : counter_N0)
25   {
26 #pragma omp taskloop shared(counter_N0)
27     for (int i0 = 0; i0 < N0; i0++) {
28 #pragma omp target teams distribute parallel for map(tofrom : counter_N0) nowait
29       for (int i1 = 0; i1 < N1; i1++) {
30 #pragma omp atomic update
31         counter_N0 = counter_N0 + 1.;
32       }
33     }
34   }
35 
36   if (!almost_equal(counter_N0, expected_value, 0.1)) {
37     std::cerr << "Expected: " << expected_value << " Got: " << counter_N0
38               << '\n';
39     return -1;
40   }
41 
42   return 0;
43 }
44