[Bug rtl-optimization/115877] [15 Regression] wrong code at -Os (missing zero extension)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115877

--- Comment #4 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Andreas Schwab from comment #3)
> dup
> 
> *** This bug has been marked as a duplicate of bug 115916 ***

This came first and it has a smaller testcase? The other is fine too, of course
though.