type-t">TransferFunctions.Domain.t</a></span> <span>&#45;&gt;</span> <a href="../../../../IR/Procdesc/index.html#type-t">IR.Procdesc.t</a> <span>&#45;&gt;</span> <span><a href="TransferFunctions/Domain/index.html#type-t">TransferFunctions.Domain.t</a> option</span></code></dt><dt class="spec value" id="val-exec_cfg"><a href="#val-exec_cfg" class="anchor"></a><code><span class="keyword">val</span> exec_cfg : <span>?&#8288;do_narrowing:bool</span> <span>&#45;&gt;</span> <a href="TransferFunctions/CFG/index.ht