41 lines · cpp
1// RUN: %clangxx_tsan -O1 %s -o %t && %env_tsan_opts=print_full_thread_history=true %deflake %run %t 2>&1 | FileCheck %s2 3#include "test.h"4 5int Global;6 7void *Thread2(void *x) {8 barrier_wait(&barrier);9 Global++;10 return NULL;11}12 13void *Thread3(void *x) {14 Global--;15 barrier_wait(&barrier);16 return NULL;17}18 19void *Thread1(void *x) {20 pthread_t t[2];21 pthread_create(&t[0], NULL, Thread2, NULL);22 pthread_create(&t[1], NULL, Thread3, NULL);23 pthread_join(t[0], NULL);24 pthread_join(t[1], NULL);25 return NULL;26}27 28int main() {29 barrier_init(&barrier, 2);30 pthread_t t;31 pthread_create(&t, NULL, Thread1, NULL);32 pthread_join(t, NULL);33 return 0;34}35 36// CHECK: WARNING: ThreadSanitizer: data race37// CHECK: Thread T2 {{.*}} created by thread T1 at38// CHECK: Thread T3 {{.*}} created by thread T1 at:39// CHECK: Thread T1 {{.*}} created by main thread at:40// CHECK: SUMMARY: ThreadSanitizer: data race{{.*}}41