Function rustc_query_impl::make_query::mir_callgraph_reachable

pub fn mir_callgraph_reachable<'tcx>(
    tcx: QueryCtxt<'tcx>, 
    key: mir_callgraph_reachable<'tcx>
) -> QueryStackFrame

Check whether the function has any recursion that could cause the inliner to trigger a cycle. Returns the call stack causing the cycle. The call stack does not contain the current function, just all intermediate functions.