verilator/test_regress/t/t_interface_wire_bad_param.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2024 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0

interface Ifc;
endinterface

module Sub #(
    parameter P
);
  Ifc a ();
endmodule

module t;
  Sub #(0) sub ();
  // Issue #5649
  wire wbad = sub.a;
endmodule