read_liberty extensions

povik commented 1 month ago

What are the reasons/motivation for this change?

This addresses a few things:

read_liberty -wb can only read some cells (not those with busses), but combining it with a separate read_liberty -lib call as fallback doesn't always work well because of how the command handles re-definitions, see commit 2f2726d with a fix
related to above, new -ignore_busses option
area and capacitance attributes for e.g. user inspection or to find the smallest gate implementing a particular function

Also I checked in some real-world Liberty data to use in tests, and have written tests using those (incl. for the existing -unit_delay option)

povik commented 3 weeks ago

I want to get rid of the last commit 5e2b37ffec6 checking in unfiltered data but that is blocked by #4681

povik commented 1 week ago

Beware that the foundry files raw and filtered add up to over 2MB

The raw files are supposed to be dropped from the PR once we fix #4681

widlarizer commented 1 week ago

[x] Check before merge that there are no commits with big files even if removed in subsequent commit to save .git directory size growth (I think that's how that works?)

povik commented 1 week ago

I want to get rid of the last commit https://github.com/YosysHQ/yosys/commit/5e2b37ffec65fc7b651eafbf15e5884f3b2121d3 checking in unfiltered data

Force pushed to remove the unfiltered data, and to check in gzipped versions of the filtered data

YosysHQ / yosys