1 // RUN: %clangxx_tsan %s -o %t
2 // RUN: %run %t 2>&1 | FileCheck %s
3 
4 #include "bench.h"
5 
6 int x;
7 
thread(int tid)8 void thread(int tid) {
9   for (int i = 0; i < bench_niter; i++)
10     __atomic_load_n(&x, __ATOMIC_ACQUIRE);
11 }
12 
bench()13 void bench() {
14   __atomic_store_n(&x, 0, __ATOMIC_RELEASE);
15   start_thread_group(bench_nthread, thread);
16 }
17 
18 // CHECK: DONE
19 
20