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Added extractinv pass

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This commit is contained in:
Marcin Kościelnicki 2019-08-28 14:58:14 +00:00
parent 70c607d7dd
commit c9f9518de4
5 changed files with 172 additions and 0 deletions
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tests/techmap/extractinv.ys Normal file
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read_verilog << EOT
module ff4(...);
parameter [0:0] CLK_INV = 1'b0;
parameter [3:0] DATA_INV = 4'b0000;
(* invertible_pin = "CLK_INV" *)
input clk;
(* invertible_pin = "DATA_INV" *)
input [3:0] d;
output [3:0] q;
endmodule
module inv(...);
output o;
input i;
endmodule
module top(...);
input d0, d1, d2, d3;
input clk;
output q;
ff4 #(.DATA_INV(4'h5)) ff_inst (.clk(clk), .d({d3, d2, d1, d0}), .q(q));
endmodule
EOT
extractinv -inv inv o:i
clean
select -assert-count 2 top/t:inv
select -assert-count 2 top/t:inv top/t:ff4 %ci:+[d] %ci:+[o] %i
select -assert-count 1 top/t:inv top/w:d0 %co:+[i] %i
select -assert-count 0 top/t:inv top/w:d1 %co:+[i] %i
select -assert-count 1 top/t:inv top/w:d2 %co:+[i] %i
select -assert-count 0 top/t:inv top/w:d3 %co:+[i] %i
select -assert-count 0 top/t:ff4 top/w:d0 %co:+[d] %i
select -assert-count 1 top/t:ff4 top/w:d1 %co:+[d] %i
select -assert-count 0 top/t:ff4 top/w:d2 %co:+[d] %i
select -assert-count 1 top/t:ff4 top/w:d3 %co:+[d] %i