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// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t 2>&1 | FileCheck %s
// Also check that atomics instrumentation can be configured by either driver or
// legacy flags:
// RUN: %clangxx_tsan -O1 %s -o %t -fno-sanitize-thread-atomics && not %deflake %run %t 2>&1 \
// RUN: | FileCheck --allow-empty --check-prefix=CHECK-NO-ATOMICS %s
// RUN: %clangxx_tsan -O1 %s -o %t -mllvm -tsan-instrument-atomics=0 && not %deflake %run %t 2>&1 \
// RUN: | FileCheck --allow-empty --check-prefix=CHECK-NO-ATOMICS %s <%t
#include "test.h"
void *Thread(void *a) {
__atomic_fetch_add((int*)a, 1, __ATOMIC_SEQ_CST);
barrier_wait(&barrier);
return 0;
}
int main() {
barrier_init(&barrier, 2);
int *a = new int(0);
pthread_t t;
pthread_create(&t, 0, Thread, a);
barrier_wait(&barrier);
delete a;
pthread_join(t, 0);
}
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK-NO-ATOMICS-NOT: WARNING: ThreadSanitizer: data race
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