[Bug target/124654] Suboptimal carry chain after mulx in multiply-accumulate loop

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124654

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
  _65 = .ADD_OVERFLOW (_9, lo_22);
  s_25 = REALPART_EXPR <_65>;
  _66 = IMAGPART_EXPR <_65>;
  c1_26 = _66 != 0;
  _38 = .ADD_OVERFLOW (s_25, c_36);
  s2_27 = REALPART_EXPR <_38>;
  _1 = IMAGPART_EXPR <_38>;
  c2_28 = _1 != 0;
  MEM[(u64 *)r_29(D) + ivtmp.11_64 * 1] = s2_27;
  _11 = (long long unsigned int) c1_26;
  _12 = _11 + hi_23;
  _13 = (long long unsigned int) c2_28;
  c_31 = _12 + _13;