1*bcaeed49SFangrui Song // RUN: %clangxx_tsan %s -o %t
2*bcaeed49SFangrui Song // RUN: %run %t 2>&1 | FileCheck %s
3*bcaeed49SFangrui Song 
4*bcaeed49SFangrui Song // bench.h needs pthread barriers which are not available on OS X
5*bcaeed49SFangrui Song // UNSUPPORTED: darwin
6*bcaeed49SFangrui Song 
7*bcaeed49SFangrui Song #include "bench.h"
8*bcaeed49SFangrui Song 
9*bcaeed49SFangrui Song int x;
10*bcaeed49SFangrui Song 
thread(int tid)11*bcaeed49SFangrui Song void thread(int tid) {
12*bcaeed49SFangrui Song   for (int i = 0; i < bench_niter; i++)
13*bcaeed49SFangrui Song     __atomic_fetch_add(&x, 1, __ATOMIC_ACQ_REL);
14*bcaeed49SFangrui Song }
15*bcaeed49SFangrui Song 
bench()16*bcaeed49SFangrui Song void bench() {
17*bcaeed49SFangrui Song   start_thread_group(bench_nthread, thread);
18*bcaeed49SFangrui Song }
19*bcaeed49SFangrui Song 
20*bcaeed49SFangrui Song // CHECK: DONE
21*bcaeed49SFangrui Song 
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