File: t_dfg_circular.v

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verilator 5.038-1
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// 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

// verilator lint_off UNOPTFLAT

module t (
    input wire i,
    output wire o
);
   wire a;
   wire b;
   wire c;
   wire d;

   assign c = i + 1'b1;
   assign d = c + 1'b1;
   assign a = b + d;
   assign b = a + 1'b1;

   wire p;
   wire q;
   wire r;
   wire s;

   assign p = i + 1'b1;
   assign q = p + 1'b1;
   assign r = s ^ q;
   assign s = r + 1'b1;

   wire x;
   wire y;
   wire z;
   wire w;

   assign x = y ^ i;
   assign y = x;
   assign z = w;
   assign w = y & z;

   assign o = b | x;
endmodule