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


From: jbeulich at suse dot com
Subject: [Bug gas/25438] x86 MOVZ* anomalies for unusual/wrong operand combinations
Date: Thu, 23 Jan 2020 12:48:18 +0000

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

--- Comment #8 from Jan Beulich <jbeulich at suse dot com> ---
(In reply to H.J. Lu from comment #7)
> It is OK to encode "movzwq %ax,%rcx" as "movzwl %ax,%ecx".  But assembler
> shouldn't accept "movzwl %ax,%rcx".

But addressing this is part of the second patch referenced by the original
description here.

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