File: t_lint_always_comb_multidriven_bad.v

package info (click to toggle)
verilator 5.038-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 162,552 kB
  • sloc: cpp: 139,204; python: 20,931; ansic: 10,222; yacc: 6,000; lex: 1,925; makefile: 1,260; sh: 494; perl: 282; fortran: 22
file content (76 lines) | stat: -rw-r--r-- 1,510 bytes parent folder | download | duplicates (2)
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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2012 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0

module t (/*AUTOARG*/
   // Outputs
   out1, out2, out3, out4, out5, out6, out7, out8,
   // Inputs
   clk, d
   );

   input clk;
   input d;
   output reg out1;
   output reg out2;
   output reg out3;
   output reg out4;
   output reg out5;
   output reg out6;
   output reg out7;
   output reg out8;

   assign out1 = 1'b0;
   always_comb out1 = d;  // <--- Warning

   assign out2 = d;
   always_comb out2 = 1'b0;  // <--- Warning

   always_comb out3 = d;
   assign out3 = 1'b0;  // <--- Warning

   always_comb out4 = 1'b0;
   assign out4 = d;  // <--- Warning

   always_comb out5 = 1'b0;
   always_comb out5 = d;  // <--- Warning

   always_comb out6 = d;
   always_comb out6 = 1'b0;  // <--- Warning

   always_comb begin
      out7 = 1'b0;
      out7 = d;
   end

   always_comb begin
      out8 = d;
      out8 = 1'b0;
   end

   reg [1:0] arr_packed;
   reg arr_unpacked [0:1];
   reg [1:0] gen_arr_packed;
   reg gen_arr_unpacked [0:1];
   genvar g;

   always_comb begin
      arr_packed[0] = d;
      arr_packed[1] = d;
   end

   always_comb begin
      arr_unpacked[0] = d;
      arr_unpacked[1] = d;
   end

   generate
      for (g=0; g<2; ++g) begin
         always_comb gen_arr_packed[g] = d;
         always_comb gen_arr_unpacked[g] = d;
      end
   endgenerate

endmodule