[Bug tree-optimization/62167] [tail-merge] dead type-unsafe load replaces type-safe load

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62167

--- Comment #1 from vries at gcc dot gnu.org ---
Created attachment 33360
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33360&action=edit
tentative patch, testing atm