------------- normal 3T ---------------

yosys> stat -liberty ./nem_liberty/nem_basic_yosys.lib

14. Printing statistics.

=== c1355_nem ===

   Number of wires:                227
   Number of wire bits:            227
   Number of public wires:          73
   Number of public wire bits:      73
   Number of ports:                 73
   Number of port bits:             73
   Number of memories:               0
   Number of memory bits:            0
   Number of processes:              0
   Number of cells:                186
     and_3T                          2
     inv_3T                          5
     nand_3T                        41
     nor_3T                         30
     or_3T                           3
     xnor_3T                        77
     xor_3T                         28

   Chip area for module '\c1355_nem': 1048072.000000
     of which used for sequential elements: 0.000000 (0.00%)

------------- 4T ---------------

yosys> stat -liberty ./nem_liberty/nem_basic_yosys_extended.lib

14. Printing statistics.

=== c1355_nem ===

   Number of wires:                221
   Number of wire bits:            221
   Number of public wires:          73
   Number of public wire bits:      73
   Number of ports:                 73
   Number of port bits:             73
   Number of memories:               0
   Number of memory bits:            0
   Number of processes:              0
   Number of cells:                180
     and_4T                         49
     and_not_4T                     18
     inv_3T                          1
     or_4T                           7
     xnor_4T                        91
     xor_4T                         14

   Chip area for module '\c1355_nem': 353512.000000
     of which used for sequential elements: 0.000000 (0.00%)

------------- Muxig ---------------
------------- Stats ---------------
Area 3T: 1048072.000000
Area 4T: 353512.000000
Ratio 4T->3T: .33729743758062423192%
Area MUX: 
Ratio MUX->3T: %