1 | /* |
2 | * lock.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 | |
20 | int main(int argc, char *argv[]) { |
21 | int var = 0; |
22 | |
23 | omp_lock_t lock; |
24 | omp_init_lock(&lock); |
25 | |
26 | #pragma omp parallel num_threads(2) shared(var) |
27 | { |
28 | omp_set_lock(&lock); |
29 | var++; |
30 | omp_unset_lock(&lock); |
31 | } |
32 | |
33 | omp_destroy_lock(&lock); |
34 | |
35 | fprintf(stderr, format: "DONE\n" ); |
36 | int error = (var != 2); |
37 | return error; |
38 | } |
39 | |
40 | // CHECK-NOT: ThreadSanitizer: data race |
41 | // CHECK-NOT: ThreadSanitizer: reported |
42 | // CHECK: DONE |
43 | |