https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119114
--- Comment #15 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #14)
> ;; Same for a BImode but still return a QImode.
> (define_expand "vec_extract<mode>bi"
> [(set (match_operand:QI 0 "register_operand")
> (vec_select:QI
> (match_operand:VB_VLS 1 "register_operand")
> (parallel
> [(match_operand 2 "nonmemory_operand")])))]
> "TARGET_VECTOR"
> {
> emit_insn (gen_vec_extract<mode>qi (operands[0], operands[1],
> operands[2]));
> DONE;
> })
>
>
> This seems like always does a zero_extend instead of assuming there needs
> some other extends.
>
> It also means the BImode extend is lost.
> What happens if the backend does not expose vec_extract for bi extraction?
Wait it is not the above but rather vec_extract<mode><vel> pattern.