[Bug target/71921] missed vectorization optimization

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71921

--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So MIN_EXPR/MAX_EXPR is not safe due to NaNs.  There was some work on adding an
IEEE MIN_EXPR/MAX_EXPR which is.