[Bug target/53513] [SH] Add support for fschg and fpchg insns and improve fenv support

[kkojima at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53513

--- Comment #33 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #32)
> I'd propose the following for SH:
> 
>     unsigned int __builtin_sh_get_fpscr ()
>     void __builtin_sh_set_fpscr (unsigned int)
> 
> Any opinions or feedback regarding the matter?

Looks fine to me.