[Bug tree-optimization/114684] `-(int)(unsigned:1)signed:1` could just be `(int)signed:1`

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114684

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note clang Canonicalizes it into `-([b]&1)` (though on aarch64, they don't use
sbfx while GCC does uses that).