[ASan/Win] Add a comment about DCL-using-static vs threads

[blocksruntime.git] / test / msan / sync_lock_set_and_test.cc

// RUN: %clangxx_msan -m64 -O0 %s -o %t && %run %t

int main(void) {
  int i;
  __sync_lock_test_and_set(&i, 0);
  return i;
}