current git location: commit 71f2b40320127561175ad60f6f2428f3438e5243 (HEAD) Author: Alan Mishchenko <alanmi@berkeley.edu> Date: Sat Jan 11 12:48:26 2020 +0200 Preventing 'mfs' from using fanins of fixed objects as divisors. archive containing repro case is at https://ftp.libre-soc.org/yosys-abc-segfault.tgz