23 lines · cpp
1// RUN: %clangxx_tsan %s -o %t2// RUN: %run %t 2>&1 | FileCheck %s3 4// bench.h needs pthread barriers which are not available on OS X5// UNSUPPORTED: darwin6 7#include "bench.h"8 9int x;10 11void thread(int tid) {12 for (int i = 0; i < bench_niter; i++)13 __atomic_load_n(&x, __ATOMIC_ACQUIRE);14}15 16void bench() {17 __atomic_store_n(&x, 0, __ATOMIC_RELEASE);18 start_thread_group(bench_nthread, thread);19}20 21// CHECK: DONE22 23