[Bug gas/25438] x86 MOVZ* anomalies for unusual/wrong operand combinations

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25438

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Jan Beulich from comment #2)

> For 32-bit (and 16-bit) code though this isn't the way to go, as long as e.g.
> 
>       movl    %al, %al
>       movl    %ax, %ax
> 
> produce an error on the first line, but only two warnings on the second one.
> Behavior for MOVZ* simply gets brought in line with this by the proposed
> patch.

We should make them hard errors now.

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