Re: nullary _ffi's

> Thanks for the patch. It fixed the problem with the regression failure
> (cmdline). Unfortunately, it introduced two new -native regression failures,
> bytechar and string. Do you see those failures as well?

I was able to recreate the failure and narrowed it down to a bug in the
peephole optimization for signed division by a power of 2. I'm including
the updated x86-simplify.fun which should work with the version of the
native backend that you have.