| // RUN: %clang_tsan -O1 %s -o %t && %env_tsan_opts=suppressions='%s.supp' %run %t 2>&1 | FileCheck %s | |
| #include <pthread.h> | |
| #include <stdio.h> | |
| int RacyGlobal; | |
| void *Thread1(void *x) { | |
| RacyGlobal = 42; | |
| return NULL; | |
| } | |
| void *Thread2(void *x) { | |
| RacyGlobal = 43; | |
| return NULL; | |
| } | |
| int main() { | |
| pthread_t t[2]; | |
| pthread_create(&t[0], NULL, Thread1, NULL); | |
| pthread_create(&t[1], NULL, Thread2, NULL); | |
| pthread_join(t[0], NULL); | |
| pthread_join(t[1], NULL); | |
| fprintf(stderr, "OK\n"); | |
| return 0; | |
| } | |
| // CHECK-NOT: failed to open suppressions file | |
| // CHECK-NOT: WARNING: ThreadSanitizer: data race | |