yosys
https://github.com/cliffordwolf/yosys
C++
Yosys Open SYnthesis Suite
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- Issues
- smt backend option --dump-vlogtb produces Verilator error
- synth_gatemate: add -noconstmult option
- There is a lot of unnecessary `IdString` refcount churn
- Don't sort anything ever
- Support mixed input/output in cutpoint handling of inout
- Unify handling of quoted strings in pass args
- autoname may be inefficient for large circuits
- Add parsing of verilog module port renaming (aliases)
- abc: add -word mode which uses word-level cells where possible
- feature breakreduce
- Docs
- C++ not yet supported