[Bug tree-optimization/102512] Redundant max/min operation before vector reduction

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102512

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2021-09-28
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I wonder if the prologue for the second case we if we know the size was
originally greater than 4 just do an overlap load and do the max.
This won't fix the issue fully but it will produce better code than we
currently do.

Otherwise confirmed.