https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119114
--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> --- ;; 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?