llvm-project/openmp/libomptarget/test/offloading/taskloop_offload_nowait.cpp
Joseph Huber 777039a51c [Libomptarget] Run CPU offloading tests using the new driver
This patch adds a new target to the OpenMP CPU offloading tests. This
tests the usage of the new driver for CPU offloading. If this all works
then we can move to transition to the new driver as the default.

Depends on D119613

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D119736
2022-02-15 15:05:32 -05:00

44 lines
1.1 KiB
C++

// RUN: %libomptarget-compilexx-and-run-generic
// UNSUPPORTED: x86_64-pc-linux-gnu
// UNSUPPORTED: x86_64-pc-linux-gnu-newDriver
#include <cmath>
#include <cstdlib>
#include <iostream>
bool almost_equal(float x, float gold, float tol) {
if (std::signbit(x) != std::signbit(gold))
x = std::abs(gold) - std::abs(x);
return std::abs(gold) * (1 - tol) <= std::abs(x) &&
std::abs(x) <= std::abs(gold) * (1 + tol);
}
int main(int argc, char *argv[]) {
constexpr const int N0{2};
constexpr const int N1{182};
constexpr const float expected_value{N0 * N1};
float counter_N0{};
#pragma omp target data map(tofrom : counter_N0)
{
#pragma omp taskloop shared(counter_N0)
for (int i0 = 0; i0 < N0; i0++) {
#pragma omp target teams distribute parallel for map(tofrom : counter_N0) nowait
for (int i1 = 0; i1 < N1; i1++) {
#pragma omp atomic update
counter_N0 = counter_N0 + 1.;
}
}
}
if (!almost_equal(counter_N0, expected_value, 0.1)) {
std::cerr << "Expected: " << expected_value << " Got: " << counter_N0
<< '\n';
return -1;
}
return 0;
}