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// FIXME: Understand why this test fails if TSan is re-execed.
// RUN: ulimit -s 8192
// RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s
#include <pthread.h>
#include <unistd.h>
int X = 0;
void *Thread(void *p) {
X = 42;
return 0;
}
void MySleep() {
usleep(100*1000);
}
int main() {
pthread_t t;
pthread_create(&t, 0, Thread, 0);
MySleep(); // Assume the thread has done the write.
X = 43;
pthread_join(t, 0);
return 0;
}
// CHECK: WARNING: ThreadSanitizer: data race
// ...
// CHECK: As if synchronized via sleep:
// CHECK-NEXT: #0 usleep
// CHECK-NEXT: #1 MySleep
// CHECK-NEXT: #2 main
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