[Bug target/93449] PPC: Missing conversion builtin from vector to _Decimal128 and vice versa

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93449

--- Comment #5 from Segher Boessenkool <segher at gcc dot gnu.org> ---
bcdadd works with decimal *integers*; _Decimal128 is decimal *float*.