verilator/test_regress/t/t_disable_func_bad.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain
// SPDX-FileCopyrightText: 2025 Antmicro
// SPDX-License-Identifier: CC0-1.0

int x = 0;

function int increment_x;
  x++;
  return x;
endfunction

module t;

  initial begin
    fork
      increment_x();
      #1 disable increment_x;
    join
  end

endmodule