[Bug target/103197] ppc inline expansion of memcpy/memmove should not use lxsibzx/stxsibx for a single byte

[segher at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103197

--- Comment #8 from Segher Boessenkool <segher at gcc dot gnu.org> ---
So it seems to think that all registers in the preferred class,
GEN_OR_VSX_REGS,
are the same cost?  They very much are not :-(