- Added automatic gzip compression (based on filename extension) for backends
- Improve attribute and parameter encoding in JSON to avoid ambiguities between
bit vectors and strings containing [01xz]*
+ - Added "clkbufmap" pass
+ - Added "synth_xilinx -family xc6s" for Spartan 6 support (experimental)
+ - Added "synth_xilinx -ise" (experimental)
+ - Added "synth_xilinx -iopad"
+ - "synth_xilinx" now automatically inserts clock buffers (add -noclkbuf to disable)
- Improvements in pmgen: subpattern and recursive matches
- Added "opt_share" pass, run as part of "opt -full"
- Added "ice40_wrapcarry" to encapsulate SB_LUT+SB_CARRY pairs for techmapping