[Bug tree-optimization/120231] GCC fails to notice that (double)u64 is non-negative

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120231

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
In any case, #c5 and onwards is completely unrelated to this PR, which is about
value ranges for casts from integers to floating point and vice versa.  So,
please move that elsewhere.