[FIRRTL] Replace remove-unused-ports with port-only IMDCE mode#10575
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uenoku wants to merge 1 commit into
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[FIRRTL] Replace remove-unused-ports with port-only IMDCE mode#10575uenoku wants to merge 1 commit into
uenoku wants to merge 1 commit into
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This PR replaces RemoveUnusedPorts with IMDCE by adding a new mode to IMDCE as mentioned in #10501.
To mimic the old RemoveUnusedPorts behavior, this PR adds two options (1) dropping donttouch (2) remove only ports. Maybe it might be better to move (1) to reduction pattern instead of implementing in IMDCE pass, though.
Invalid value propagation is added as well to pass the old test.
This PR fixes crashes in #10501 and #10504. IMDCE doesn't eliminate property/instance choices at this point though.
Close #3377.
Assisted-by: claude code: sonnet 4.6