// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2007 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0

module t (  /*AUTOARG*/
    // Outputs
    x,
    // Inputs
    clk
);

`ifdef ALLOW_UNOPT
  /*verilator lint_off UNOPTFLAT*/
`endif

  input clk;
  output x;  // Avoid eliminating x

  reg x;
  always @* begin
    x = ~x;
  end

endmodule
