[Bug target/112623] [14 Regression] ICE: in emit_move_insn, at expr.cc:4249 with -O -mavx512vl -mavx512fp16 on vector conversion since r14-1707

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112623

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #7)
> I think at least x86 doesn't currently have instructions which would support
> both, CCing Hongtao to verify that, but not sure if e.g. RISC-V won't have
> something eventually for both.  Don't we need to check the mode also
> somewhere in the vectorizer (so that we don't happily try to vectorize using
> it only to get it lowered later to scalar ops during generic vector lowering
> (or forwprop?)?

As said I think the vectorizer checks this already.