verilator/test_regress/t/t_assert_unique_case_bad.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2024 Yutetsu TAKATSUKASA
// SPDX-License-Identifier: CC0-1.0

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

  input clk;
  output logic hit;

  logic [31:0] addr;
  logic [11:0] match_item0, match_item1;
  int cyc;
  string s;

  initial addr = 32'h380;

  always @(posedge clk) begin
    cyc <= cyc + 1;
    addr <= 32'h380 + cyc;
    match_item0 = 12'h380 + cyc[11:0];
    match_item1 = 12'h390 - cyc[11:0];
    $sformat(s, "%1d", cyc);
    if (cyc == 9) begin
      $write("*-* All Finished *-*\n");
      $finish;
    end
  end

  always_comb begin
    hit = 1;
    unique case (addr[11:0])
      match_item0: $display("match_item0");
      match_item1: $display("match_item1");
      default: hit = 0;
    endcase
  end

`ifdef NO_STOP_FAIL
  always_comb begin
    unique case (s)
      "": ;
      "0": ;
      "2": ;
      "4": ;
      "6": ;
    endcase
  end
  always_comb begin
    priority case (s)
      $sformatf("%1d", cyc - 1): ;
      "0": ;
      "6": ;
    endcase
  end
`endif

endmodule