1// RUN: %libomptarget-compilexx-and-run-generic
2
3// Taken from https://github.com/llvm/llvm-project/issues/54216
4
5#include <algorithm>
6#include <cstdlib>
7#include <iostream>
8
9bool almost_equal(float x, float gold, float rel_tol = 1e-09,
10 float abs_tol = 0.0) {
11 return std::abs(x: x - gold) <=
12 std::max(a: rel_tol * std::max(a: std::abs(x: x), b: std::abs(x: gold)), b: abs_tol);
13}
14void test_parallel_for__target() {
15 const int N0{32768};
16 const float expected_value{N0};
17 float counter_N0{};
18#pragma omp parallel for
19 for (int i0 = 0; i0 < N0; i0++) {
20#pragma omp target map(tofrom : counter_N0)
21 {
22#pragma omp atomic update
23 counter_N0 = counter_N0 + 1.;
24 }
25 }
26 if (!almost_equal(x: counter_N0, gold: expected_value, rel_tol: 0.01)) {
27 std::cerr << "Expected: " << expected_value << " Got: " << counter_N0
28 << std::endl;
29 std::exit(status: 112);
30 }
31}
32int main() { test_parallel_for__target(); }
33

source code of offload/test/mapping/map_back_race.cpp