verilator/test_regress/t/t_struct_clk.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

// verilog_format: off
`define stop $stop
`define checkd(gotv,expv) do if ((gotv) !== (expv)) begin $write("%%Error: %s:%0d:  got=%0d exp=%0d\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0);
// verilog_format: on

typedef struct {
  logic clk1;
  logic clk2;
  logic rst;
} clks_t;

module t (  /*AUTOARG*/
    // Inputs
    clk,
    fastclk
);
  input clk;
  input fastclk;

  int cyc = 0;

  clks_t clks;
  always_comb begin
    clks.clk1 = clk;
    clks.clk2 = fastclk;
  end

  // verilator lint_off MULTIDRIVEN
  int cyc1 = 0;
  int cyc2 = 0;

  always @(negedge clks.clk1) cyc1 <= cyc1 + 1;
  always @(negedge clks.clk2) cyc2 <= cyc2 + 1;

  always @(posedge clk) begin
    cyc <= cyc + 1;
    if (cyc < 10) begin
      cyc1 <= '0;
      cyc2 <= '0;
    end
    else if (cyc == 99) begin
      `checkd(cyc1, 90);
      `checkd(cyc2, 90 * 5);

      $write("*-* All Finished *-*\n");
      $finish;
    end
  end

endmodule