d" id="val-propagate_cpp_iter_begin_or_end_alias"><a href="#val-propagate_cpp_iter_begin_or_end_alias" class="anchor"></a><code><span><span class="keyword">val</span> propagate_cpp_iter_begin_or_end_alias : 
  <span><span class="label">new_pvar</span>:<a href="../../../IR/Pvar/index.html#type-t">IR.Pvar.t</a> <span class="arrow">&#45;&gt;</span></span>
  <span><span class="label">existing_pvar</span>:<a href="../../../IR/Pvar/index.html#type-t">IR.Pvar.t</a> <span class="arrow">&#45;&gt;</span></span>
  <sp