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
9const int kMutex = 10;
10pthread_mutex_t mtx[kMutex];
11
12void thread(int tid) {
13 for (int i = 0; i < bench_niter; i++) {
14 int idx = (i % kMutex);
15 if (tid == 0)
16 idx = kMutex - idx - 1;
17 pthread_mutex_lock(&mtx[idx]);
18 pthread_mutex_unlock(&mtx[idx]);
19 }
20}
21
22void bench() {
23 for (int i = 0; i < kMutex; i++)
24 pthread_mutex_init(&mtx[i], 0);
25 start_thread_group(2, thread);
26}
27
28// CHECK: DONE
29
30