verilator/test_regress/t/t_class_packed.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2020 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0

module t (
    input clk
);

  //TODO sub #(.WIDTH(1)) w1();
  //TODO sub #(.WIDTH(2)) w2();
  //TODO sub #(.WIDTH(3)) w3();
  //TODO sub #(.WIDTH(4)) w4();
  sub #(.WIDTH(5)) w5 ();

  always @(posedge clk) begin
    $write("*-* All Finished *-*\n");
    $finish;
  end
endmodule

module sub ();
  parameter WIDTH = 5;  // WIDTH >= 5 fails. WIDTH <= 4 passes

  typedef struct packed {logic [WIDTH-1:0] data;} [15:0] w_t;

  class WrReqQ;
    w_t w;
  endclass

  initial begin
    if ($bits(w_t) != WIDTH * 16) $stop;
  end

endmodule