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[Bug gas/25550] Review .arch directives

From: jbeulich at suse dot com
Subject: [Bug gas/25550] Review .arch directives
Date: Tue, 18 Feb 2020 16:35:58 +0000


--- Comment #11 from Jan Beulich <jbeulich at suse dot com> ---
(In reply to H.J. Lu from comment #10)
> We need a directive for SSE instructions without MMX registers.
> We can give it a different name, something like pure-SSE.

But what practical use would such an option be? You said yourself that anything
that can engage MMX state in the CPU also is liable to want/need access to EMMS
(or FEMMS), which won't be accessible with just SSE insns permitted.

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