In escape.cpp, the function reduce_phi has the following fragment:

```
...
    } else if (use->is_SafePoint()) {
      // processed later
    } else {
      assert(use->is_SafePoint(), "Unexpected user of reducible Phi %d -> %d:%s:%d", ophi->_idx, use->_idx, use->Name(), use->outcnt());
    }
```

This is unnecessary as the assert will always trigger. We can either remove the else if branch or change the assert for a ShouldNotReachHere