1// RUN: %clangxx_tsan %s -o %t
2// RUN: %run %t 2>&1 | FileCheck %s
3
4// bench.h needs pthread barriers which are not available on OS X
5// UNSUPPORTED: darwin
6
7#include "bench.h"
8
9int *x;
10const int kStride = 32;
11
12void thread(int tid) {
13 __atomic_load_n(&x[tid * kStride], __ATOMIC_ACQUIRE);
14 for (int i = 0; i < bench_niter; i++)
15 __atomic_store_n(&x[tid * kStride], 0, __ATOMIC_RELEASE);
16}
17
18void bench() {
19 x = (int*)malloc(bench_nthread * kStride * sizeof(x[0]));
20 for (int i = 0; i < bench_nthread; i++)
21 __atomic_store_n(&x[i * kStride], 0, __ATOMIC_RELEASE);
22 start_thread_group(bench_nthread, thread);
23}
24
25// CHECK: DONE
26
27