[Bug rtl-optimization/82889] Unnecessary sign extension of int32 to int64

[hiraditya at msn dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82889

--- Comment #5 from AK <hiraditya at msn dot com> ---
Link to compiler explorer: https://godbolt.org/z/dGYG4dG15