1 // RUN: %clang_tsan -O1 %s -o %t && %env_tsan_opts=suppressions='%s.supp' %run %t 2>&1 | FileCheck %s 2 #include <pthread.h> 3 #include <stdio.h> 4 5 int RacyGlobal; 6 Thread1(void * x)7void *Thread1(void *x) { 8 RacyGlobal = 42; 9 return NULL; 10 } 11 Thread2(void * x)12void *Thread2(void *x) { 13 RacyGlobal = 43; 14 return NULL; 15 } 16 main()17int main() { 18 pthread_t t[2]; 19 pthread_create(&t[0], NULL, Thread1, NULL); 20 pthread_create(&t[1], NULL, Thread2, NULL); 21 pthread_join(t[0], NULL); 22 pthread_join(t[1], NULL); 23 fprintf(stderr, "OK\n"); 24 return 0; 25 } 26 27 // CHECK-NOT: failed to open suppressions file 28 // CHECK-NOT: WARNING: ThreadSanitizer: data race 29 30