tests/opt/opt_share_cat_multiuser.v

   1 module opt_share_test(
   2   input [15:0]      a,
   3   input [15:0]      b,
   4   input [15:0]      c,
   5   input [15:0]      d,
   6   input             sel,
   7   output reg [47:0] res,
   8   );
   9
  10   wire [15:0]       add_res = a+b;
  11   wire [15:0]       sub_res = a-b;
  12   wire [31: 0]      cat1 = {add_res, c+d};
  13   wire [31: 0]      cat2 = {sub_res, c-d};
  14
  15   always @* begin
  16     case(sel)
  17       0: res = {cat1, add_res};
  18       1: res = {cat2, add_res};
  19     endcase
  20   end
  21
  22 endmodule