#173 yosys synthesis thinks macro is combinatorial Issue opened by antonblanchard Looking through the log files, I notice

yosys

complains that my macro is combinatorial (it isn't):

ABC: + retime -D -D 15000 -M 6 
ABC: + scleanup 
ABC: Error: The network is combinational.

We call retime again later on (with a different strategy), and this time it works:

ABC: + fraig_store 
ABC: + fraig_restore 
ABC: + map 
ABC: + 
ABC: + retime -D -D 15000

Are we missing a step before the first retime that inserts sequential elements? efabless/openlane