verilator/test_regress/t/t_unpack_array_no_expand.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2023 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0

module t (
    output logic [255:0] data_out
);
  localparam int NUM_STAGES = 3;

  /* verilator lint_off ALWCOMBORDER */
  /* verilator lint_off UNOPTFLAT */

  `define INPUT 256'hbabecafe

  logic [255:0] stage_data[NUM_STAGES+1];

  genvar stage;
  generate
    always_comb begin
      stage_data[0] = `INPUT;
    end
    for (stage = 0; stage < NUM_STAGES; ++stage) begin : stage_gen
      always_comb begin
        stage_data[stage+1] = stage_data[stage];
      end
    end
  endgenerate

  /* verilator lint_on UNOPTFLAT */
  /* verilator lint_on ALWCOMBORDER */

  always_comb begin
    data_out = stage_data[NUM_STAGES];
    if (data_out !== `INPUT) $stop;
    $write("*-* All Finished *-*\n");
    $finish;
  end

endmodule