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 9 pthread_mutex_t *mtx; 10 const int kStride = 16; 11 12 void thread(int tid) { 13 for (int i = 0; i < bench_niter; i++) { 14 pthread_mutex_lock(&mtx[tid * kStride]); 15 pthread_mutex_unlock(&mtx[tid * kStride]); 16 } 17 } 18 19 void bench() { 20 mtx = (pthread_mutex_t*)malloc(bench_nthread * kStride * sizeof(*mtx)); 21 for (int i = 0; i < bench_nthread; i++) { 22 pthread_mutex_init(&mtx[i * kStride], 0); 23 pthread_mutex_lock(&mtx[i * kStride]); 24 pthread_mutex_unlock(&mtx[i * kStride]); 25 } 26 start_thread_group(bench_nthread, thread); 27 } 28 29 // CHECK: DONE 30 31
