https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114902

--- Comment #6 from Segher Boessenkool <segher at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #2)
> Looks like the issue is during combine.
> 
> We go from CCGC with a sign_extend to a zero_extend with CCZ. that can't be
> right.

Why is that not correct?  zero_extend is preferred over sign_extend, and both
are equivalent when only checking for zero.

Is there something wrong in target code here, perhaps?

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