Remove some cells from no_synth.tcl and drc_excluded.tcl #211
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With the recent updates to Openlane to use abc to map muxes (vs manual tech mapping), we can now use the inverting output 2 input mux cells.
The list of drc excluded cells was created almost a year ago, and lots of bugs in the tools have since been fixed (including issues with the drt pin access code).
Owner
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I can't merge this---It needs to be taken up with the Openlane developers. If you can get their okay on it, I can merge it. |
Contributor
Author
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@RTimothyEdwards makes sense. @donn any thoughts here? |
Contributor
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Hmm, I don't know. I'd have to run the extended test set on this. It's entirely possible something is still broken somewhere and/or we missed something. |
Contributor
Author
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Here's at least one of the reasons we excluded a cell (a magic issue since fixed): |
Contributor
Author
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I am finding some designs are struggling to route with this patch, investigating. |
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