[Bug jit/66700] Bogus gimplification of jit code using ptrs to functions

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66700

--- Comment #3 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Looks like we're not setting
  TREE_ADDRESSABLE (x) = 1
when taking the address of something.