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 const int kStride = 32; 11*bcaeed49SFangrui Song thread(int tid)12*bcaeed49SFangrui Songvoid thread(int tid) { 13*bcaeed49SFangrui Song __atomic_load_n(&x[tid * kStride], __ATOMIC_ACQUIRE); 14*bcaeed49SFangrui Song for (int i = 0; i < bench_niter; i++) 15*bcaeed49SFangrui Song __atomic_store_n(&x[tid * kStride], 0, __ATOMIC_RELEASE); 16*bcaeed49SFangrui Song } 17*bcaeed49SFangrui Song bench()18*bcaeed49SFangrui Songvoid bench() { 19*bcaeed49SFangrui Song x = (int*)malloc(bench_nthread * kStride * sizeof(x[0])); 20*bcaeed49SFangrui Song for (int i = 0; i < bench_nthread; i++) 21*bcaeed49SFangrui Song __atomic_store_n(&x[i * kStride], 0, __ATOMIC_RELEASE); 22*bcaeed49SFangrui Song start_thread_group(bench_nthread, thread); 23*bcaeed49SFangrui Song } 24*bcaeed49SFangrui Song 25*bcaeed49SFangrui Song // CHECK: DONE 26*bcaeed49SFangrui Song 27