[Bug rtl-optimization/68432] [6 Regression] internal compiler error: in expand_insn, at optabs.c:6947

[rsandifo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68432

--- Comment #9 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 
---
Just as an update: the series is now tested and hopefully ready to post.  I
just need to clear a few things first.