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Add proc -nomux to Yosys and migrate to it #479

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whitequark opened this issue Aug 17, 2020 · 1 comment
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Add proc -nomux to Yosys and migrate to it #479

whitequark opened this issue Aug 17, 2020 · 1 comment

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@whitequark
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The position of Yosys developers (I say with my nMigen hat on) is that using proc_* passes in isolation is likely to break. We currently use them to prepare the netlist for write_verilog, which can't handle the netlist we emit as-is and requires it to be in a rather specific (and somewhat inconvenient) format.

What we do could almost certainly be replaced with proc -nomux (i.e. what the proc wrapper does minus proc_mux), which would be less fragile.

@whitequark
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whitequark commented Aug 26, 2020

proc -nomux is now available upstream; we need at least a node version bump to actually use it though.

@whitequark whitequark added this to the 0.3 milestone Nov 24, 2020
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