[Bug target/69493] Poor code generation for return of struct containing vectors on PPC64LE

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69493
--- Comment #11 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Why does our unpack<mode> expander use UNSPEC_UNPACK_128BIT at all, why
can it not simply generate simple code (without unspecs) directly?

(Same goes for "pack<mode>").