1 // RUN: %clangxx_tsan %darwin_min_target_with_tls_support -O1 %s -o %t && \
2 // RUN:   %deflake %run %t | \
3 // RUN:   FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
4 #include "test.h"
5 
Thread(void * a)6 void *Thread(void *a) {
7   barrier_wait(&barrier);
8   *(int*)a = 43;
9   return 0;
10 }
11 
main()12 int main() {
13   barrier_init(&barrier, 2);
14   static __thread int Var = 42;
15   pthread_t t;
16   pthread_create(&t, 0, Thread, &Var);
17   Var = 43;
18   barrier_wait(&barrier);
19   pthread_join(t, 0);
20 }
21 
22 // CHECK: WARNING: ThreadSanitizer: data race
23 // CHECK-Linux:   Location is TLS of main thread.
24 // CHECK-FreeBSD:   Location is TLS of main thread.
25 // CHECK-NetBSD:   Location is TLS of main thread.
26 // CHECK-Darwin:   Location is heap block of size 4
27