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// RUN: %clang_tsan -O1 %s -o %t && %env_tsan_opts=halt_on_error=1 %deflake %run %t | FileCheck %s
#include "test.h"
int X;
void *Thread(void *x) {
barrier_wait(&barrier);
X = 42;
return 0;
}
int main() {
barrier_init(&barrier, 2);
fprintf(stderr, "BEFORE\n");
pthread_t t;
pthread_create(&t, 0, Thread, 0);
X = 43;
barrier_wait(&barrier);
pthread_join(t, 0);
fprintf(stderr, "AFTER\n");
return 0;
}
// CHECK: BEFORE
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK-NOT: AFTER
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