verilator/test_regress/t/t_dfg_multidriver_dfg_bad.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2022 by Geza Lore.
// SPDX-License-Identifier: CC0-1.0

`default_nettype none

module t(
    input wire [10:0] i,
    input wire [10:0] j [4],
    input wire [10:0] k [4],

    output wire [10:0] o
);
    logic [10:0] a;
    assign a[3:0] = i[3:0];
    assign a[4:1] = ~i[4:1];
    assign a[3] = ~i[3];
    assign a[8:5] = i[8:5];
    assign a[7:6] = ~i[7:6];
    assign a[9] = i[9];
    assign a[9] = ~i[9];
    assign a[10] = i[10];

    logic [10:0] u [4];
    assign u = j;
    assign u = k;

    logic [10:0] v [4];
    assign v = j;
    assign v[1] = i;

    logic [10:0] w [4];
    assign w[0] = i;
    assign w = j;

    logic [10:0] x [4];
    assign x[3] = i;
    assign x[3][3:2] = ~i[1:0];
    // No warning for w[2]!
    assign x[2][3:2] = ~i[1:0];
    assign x[2][1:0] = ~i[1:0];

    logic [10:0] y;
    always_comb begin
      y = i;
      {y[1:0], y[2:1]} = i[3:0] + 4'd5;
    end

    logic [10:0] z;
    always_comb begin
      z[2:0] = i[2:0];
      z[7:5] = i[7:5];
    end
    always_comb begin
      z[6:4] = i[6:4];
      z[3:1] = i[3:1];
    end
    assign z[10:7] = i[10:7];

    sub sub_1(i);
    assign sub_1.a = i;

    sub sub_2(i);
    assign sub_2.a[10:5] = i[10:5];
    assign sub_2.a[3:0] = i[3:0];

    assign o = a ^ u[3] ^ v[3] ^ w[3] ^ x[3] ^ y ^ z ^ sub_1.a ^ sub_2.a;

endmodule

module sub(input wire [10:0] i);
    logic [10:0] a;
    assign a[5:2] = i[5:2];
endmodule