[Bug target/67260] [sh] Register spill bug for sibcall+complex+softfloat

[kkojima at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67260

--- Comment #14 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #13)
> Good question indeed.  Kaz, maybe you remember anything?

With my vague recollection, they were already there when I had looked
into them for the first time.

I guess that SH jump stuff was built with stacking many things so to
avoid strong restrictions of ISA.  Rewriting them from a current view
of gcc is a good thing, though perhaps it'll be a big hummer.