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 pthread_mutex_t mtx; 10*bcaeed49SFangrui Song pthread_cond_t cv; 11*bcaeed49SFangrui Song int x; 12*bcaeed49SFangrui Song thread(int tid)13*bcaeed49SFangrui Songvoid thread(int tid) { 14*bcaeed49SFangrui Song for (int i = 0; i < bench_niter; i++) { 15*bcaeed49SFangrui Song pthread_mutex_lock(&mtx); 16*bcaeed49SFangrui Song while (x != i * 2 + tid) 17*bcaeed49SFangrui Song pthread_cond_wait(&cv, &mtx); 18*bcaeed49SFangrui Song x++; 19*bcaeed49SFangrui Song pthread_cond_signal(&cv); 20*bcaeed49SFangrui Song pthread_mutex_unlock(&mtx); 21*bcaeed49SFangrui Song } 22*bcaeed49SFangrui Song } 23*bcaeed49SFangrui Song bench()24*bcaeed49SFangrui Songvoid bench() { 25*bcaeed49SFangrui Song pthread_mutex_init(&mtx, 0); 26*bcaeed49SFangrui Song pthread_cond_init(&cv, 0); 27*bcaeed49SFangrui Song start_thread_group(2, thread); 28*bcaeed49SFangrui Song } 29*bcaeed49SFangrui Song 30*bcaeed49SFangrui Song // CHECK: DONE 31*bcaeed49SFangrui Song 32