[Bug middle-end/39744] component references with VIEW_CONVERT_EXPR should be canonicalized

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39744

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed again:
Before FRE:
  z = 1;
  _4 = MEM[(struct X *)&z].y.z;

Note fre we are able to do the right thing but dom does not.