// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2012 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0

module t (
    input clk
);

  reg [3:0] counter = 0;
  integer l2;
  function automatic log2(input [3:0] x);
    integer log2 = (x < 2) ? 1 : (x < 4) ? 2 : (x < 8) ? 3 : 4;
  endfunction
  always @(posedge clk) begin
    counter <= counter + 1;
    l2 <= log2(counter);
    // bug589: This failed with (%Error: Internal Error: Function not underneath a statement):
    $display("log2(%d) == %d", counter, log2(counter));
    //
    $write("*-* All Finished *-*\n");
    $finish;
  end
endmodule