30 lines · cpp
1// RUN: %clang_tsan -O1 %s -o %t && %env_tsan_opts=suppressions='%s.supp' %run %t 2>&1 | FileCheck %s2#include <pthread.h>3#include <stdio.h>4 5int RacyGlobal;6 7void *Thread1(void *x) {8 RacyGlobal = 42;9 return NULL;10}11 12void *Thread2(void *x) {13 RacyGlobal = 43;14 return NULL;15}16 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 file28// CHECK-NOT: WARNING: ThreadSanitizer: data race29 30