Questa - How to exclude enum variants from toggle coverage using a .do file?

[Plexiglas1]

This was originally posted in "Software Problems, Hints and Reviews", but it probably fits better here.

I'm using SystemVerilog and I'm trying to exclude coverage from a signal that never transitions into one of the enum variants in it's module.
The enum is used across multiple modules and imported from a package, so I can't just remove it.
I also can't exclude the whole signal because I want other enum variants to be covered.

My .do file contains something like this:

coverage exclude -du offending_module -togglenode {offending_signal.UNUSED} -comment {Enum variant UNUSED is unused in module}

But that doesn't work.

 

[ahsrabrifat]

If you're using a coverage viewer like Questa’s Coverage Browser, you can manually filter out specific enum values after simulation.