27 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;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: DONE26 27