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// RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
#include <pthread.h>
#include <unistd.h>
int X = 0;
void MySleep() {
sleep(1);
}
void *Thread(void *p) {
MySleep(); // Assume the main thread has done the write.
X = 42;
return 0;
}
int main() {
pthread_t t;
pthread_create(&t, 0, Thread, 0);
X = 43;
pthread_join(t, 0);
return 0;
}
// CHECK: WARNING: ThreadSanitizer: data race
// ...
// CHECK: As if synchronized via sleep:
// CHECK-NEXT: #0 sleep
// CHECK-NEXT: #1 MySleep
// CHECK-NEXT: #2 Thread
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