[Bug target/110473] vec_convert for aarch64 seems to lower to something which should be improved

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110473

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2023-06-29
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
probably nobody implemented this in veclower?

On x86-64 I get

  _5 = VEC_PACK_TRUNC_EXPR <a_1(D), { 0, 0, 0, 0 }>;
  _6 = BIT_FIELD_REF <_5, 64, 0>;
  t_2 = _6;
  _7 = [vec_unpack_lo_expr] t_2;
  _8 = [vec_unpack_hi_expr] t_2;
  t1_3 = {_7, _8};