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1 // RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s
2 #include <pthread.h>
3 #include <stddef.h>
4 
Thread(void * a)5 void *Thread(void *a) {
6   *(int*)a = 43;
7   return 0;
8 }
9 
main()10 int main() {
11   int Var = 42;
12   pthread_t t;
13   pthread_create(&t, 0, Thread, &Var);
14   Var = 43;
15   pthread_join(t, 0);
16 }
17 
18 // CHECK: WARNING: ThreadSanitizer: data race
19 // CHECK:   Location is stack of main thread.
20 
21