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