[Bug middle-end/90345] too pessimistic check whether pointer may alias a local variable

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90345

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think there might be a dup of this bug.  Where locals should not be able to
alias incoming arugments.