[Bug tree-optimization/122273] cselim-limited does not handle some cases where the aliasing seems the same

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122273

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |pinskia at gcc dot 
gnu.org
             Status|NEW                         |ASSIGNED

--- Comment #7 from Drea Pinski <pinskia at gcc dot gnu.org> ---
I understand this now.
cond_if_else_store_replacement_1 does:
```
  lhs = gimple_assign_lhs (then_assign);
  if (!operand_equal_p (lhs, gimple_assign_lhs (else_assign), 0))
    return false;
```

Which rejects when clique/base is different.

But we could do better here.