1/*
2 * task-taskgroup-nested.c -- Archer testcase
3 */
4
5//===----------------------------------------------------------------------===//
6//
7// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
8//
9// See tools/archer/LICENSE.txt for details.
10// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
11//
12//===----------------------------------------------------------------------===//
13
14
15// RUN: %libarcher-compile-and-run | FileCheck %s
16// REQUIRES: tsan
17#include <omp.h>
18#include <stdio.h>
19#include <unistd.h>
20#include "ompt/ompt-signal.h"
21
22int main(int argc, char *argv[]) {
23 int var = 0, a = 0;
24
25#pragma omp parallel num_threads(2) shared(var, a)
26#pragma omp master
27 {
28#pragma omp taskgroup
29 {
30#pragma omp task
31 {
32#pragma omp task shared(var, a)
33 {
34 var++;
35 OMPT_SIGNAL(a);
36 }
37 }
38
39 // Give other thread time to steal the task and execute its child.
40 OMPT_WAIT(a, 1);
41 }
42
43 var++;
44 }
45
46 fprintf(stderr, format: "DONE\n");
47 int error = (var != 2);
48 return error;
49}
50
51// CHECK-NOT: ThreadSanitizer: data race
52// CHECK-NOT: ThreadSanitizer: reported
53// CHECK: DONE
54

source code of openmp/tools/archer/tests/task/task-taskgroup-nested.c