If I have dc_script_begin/dc_script_end in RTL with some don't touch commands in between, should the cells become preserved? Originally posted in cdnusers.org by mximdal
module a (...)
After elab, the preserve attribute for cell1, cell2, and cell3 are still false. But if I put ""set_dont_touch *"" in my run script, after elab the preserve attribute for these cells are true.
Why is this? Have anyone seen this in their design?