[Bug target/87455] sse_packed_single_insn_optimal is suboptimal on Zen

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87455

--- Comment #4 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
We already have TARGET_SSE_TYPELESS_STORES for stores, so perhaps we want
something like typeless reg-reg moves and loads flag?

Honza