1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2025 by Antmicro.
// SPDX-License-Identifier: CC0-1.0
/* verilator lint_off COVERIGN */
module t;
class base;
enum {red, green, blue} color;
covergroup g1 (bit [3:0] a) with function sample(bit b);
option.weight = 10;
option.per_instance = 1;
coverpoint a;
coverpoint b;
c: coverpoint color;
endgroup
function new();
g1 = new(0);
endfunction
endclass
class derived extends base;
bit d;
covergroup extends g1;
option.weight = 1; // overrides the weight from base g1
// uses per_instance = 1 from base g1
c: coverpoint color // overrides the c coverpoint in base g1
{
ignore_bins ignore = {blue};
}
coverpoint d; // adds new coverpoint
cross a, d; // crosses new coverpoint with inherited one
endgroup :g1
function new();
super.new();
endfunction
endclass
endmodule
|
