verilator/test_regress/t/t_gen_var_bad.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2005 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0

module t;
   integer i;
   generate
      for (i=0; i<3; i=i+1) begin  // Bad: i is not a genvar
      end
   endgenerate
endmodule