ue" id="val-add_guard"><a href="#val-add_guard" class="anchor"></a><code><span class="keyword">val</span> add_guard : <span>acquire_now:bool</span> <span>&#45;&gt;</span> <span>procname:<a href="../IR/Procname/index.html#type-t">IR.Procname.t</a></span> <span>&#45;&gt;</span> <span>loc:<a href="../IBase/Location/index.html#type-t">IBase.Location.t</a></span> <span>&#45;&gt;</span> <a href="../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a> <span>&#45;&gt;</s