[Bug tree-optimization/96695] Failure to optimize combination of pointer comparison to nullptr and another pointer

[gabravier at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96695

--- Comment #1 from Gabriel Ravier <gabravier at gmail dot com> ---
PS: Very similar transformations can be done with alike patterns like `(x == 0)
&& (x <= y)`, which can be optimized to `x == 0`.