yosys/tests/proc/bug2656.ys

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read_verilog <<EOT
module top (...);
input clk, rst, d1, d2;
output q1, q2;
always @(posedge clk)
if (clk)
q1 <= d1;
always @(posedge clk, posedge rst)
if (rst)
q2 <= 0;
else if (clk)
q2 <= d2;
endmodule
EOT
proc
opt
select -assert-count 1 t:$dff
select -assert-count 1 w:clk %a %co t:$dff %i
select -assert-count 1 w:d1 %a %co t:$dff %i
select -assert-count 1 w:q1 %a %ci t:$dff %i
select -assert-count 1 t:$adff
select -assert-count 1 w:clk %a %co t:$adff %i
select -assert-count 1 w:rst %a %co t:$adff %i
select -assert-count 1 w:d2 %a %co t:$adff %i
select -assert-count 1 w:q2 %a %ci t:$adff %i